POWDER & BULK SOLIDS | Wastewater Phosphorous Recovery: Process and Equipment

Aug 25, 2016

Wastewater Phosphorous Recovery: Process and EquipmentWastewater treatment involves more than just producing an effluent that is protective of human health and the environment. Increasingly, municipalities and others concerned with wastewater treatment are recognizing the potential that exists for extracting and reusing elements such as phosphorus, energy and water, from wastewater, transitioning from traditional wastewater treatment models to water resource recovery centers. This article looks at the role of conveyors in phosphorus recovery from wastewater.

August 25, 2016 – By Emma Gorsline

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Wastewater treatment involves more than just producing an effluent that is protective of human health and the environment. Increasingly, municipalities and others concerned with wastewater treatment are recognizing the potential that exists for extracting and reusing elements such as phosphorus, energy and water, from wastewater, transitioning from traditional wastewater treatment models to water resource recovery centers. This article looks at the role of conveyors in phosphorus recovery from wastewater.

Importance of Wastewater Phosphorus Recovery
Phosphorus is essential to all life and an important element for human nutrition. It plays multiple roles as a building block in the human body and, as a fertilizer, is an essential nutrient for healthy crop growth. Without phosphorus, the basic cells of plants and animals, and even life itself, would not exist.

Traditionally, the global phosphorus supply is mined from a finite source of phosphate-containing minerals. As the world’s population grows, the demand for phosphorus continues to rise. However, as a limited and non-renewable resource, once consumed, phosphorus is difficult to reclaim.

Once phosphorus enters the human body as food, it is discharged back into the environment through wastewater. In addition to the phosphorus discharged annually by human waste, surface water can carry large amounts of phosphorus-laden runoff from fertilizer used on gardens, fields, and lawns. Unless the phosphorus is recovered from wastewater during treatment, the net result is that phosphorus-rich effluent is discharged back into the environment.

Unfortunately, effluent containing excess phosphorus can be harmful to the environment. Phosphorus discharged in lakes and streams can cause toxic algae blooms, disrupting the ecosystem and threatening water supply. In addition, phosphorus that is discharged in effluent is lost, contributing to the global depletion of this valuable resource. Due to these factors, regulators and wastewater treatment facilities are now moving aggressively to implement limits and methods for removing, recovering, and reusing phosphorus that would normally be discharged in effluent.

A Process for Wastewater Phosphorous Recovery
One approach to recovering phosphorus from wastewater is through the use of chemical precipitation. However, this approach is expensive and results in the production of excess sludge which requires further processing. Fortunately, Vancouver-based Ostara Nutrient Recovery Technologies Inc. has a different solution. Ostara is a leading provider of a proprietary technology designed to assist cities and municipalities in managing excess nutrients through recovery, converting the nutrients into a Root-Activated fertilizer, sold as Crystal Green.

Ostara’s process for phosphorus recovery is based on a closed-loop solution where, instead of viewing wastewater streams as waste, Ostara sees a renewable resource that can generate revenue for treatment plants, while helping meet environmental regulations. When wastewater treatment plants remove phosphorus from the wastewater, it concentrates in the solid residues produced. The nutrients are often recycled back into the wastewater when the solid residues are processed through anaerobic digesters, creating a new problem of nutrient-rich scale called struvite. The struvite not only clogs pipes and valves, reducing flow, but requires costly maintenance and results in excess production of biosolids.

By controlling the crystallization of struvite in a fluidized bed reactor, Ostara’s Pearl technology recovers struvite (magnesium ammonium phosphate) in the form of highly pure crystalline pellets or “prills.” Nutrient-rich feed streams are mixed with magnesium chloride and, if necessary, sodium hydroxide and then fed into the Pearl reactor where minute particles or struvite “seeds” begin to form. Like a pearl, these seeds grow in diameter until they reach the desired size – 0.9 to 4 mm – which is controlled by varying key parameters.

In a municipal wastewater treatment plant, up to 85 percent of the phosphorus and 40 percent of the ammonia load is removed from sludge dewatering liquid using this process and the resulting product is marketed as Crystal Green. With Ostara’s technology, wastewater treatment facilities can recover phosphorus for reuse as an eco-friendly fertilizer, saving on chemical costs, reducing biosolids production, and creating a new revenue stream for the municipality.

Equipment Used
Here is a brief overview of the Ostara process for recovering wastewater phosphorous and the key processing equipment employed. First, Ostara’s Pearl 2000 fluidized bed reactor creates crystalline struvite pellets (prills) that are harvested from the reactor in the form of a slurry consisting of approximately 10 percent solids by weight. The slurry enters a Kason Vibroscreen single-deck circular vibratory dewatering screener equipped with a 35 mesh (445 mm) screen, that causes liquid and particles smaller than 35 mesh to pass through the screen, and prills 35 mesh (445 mm) and larger to vibrate across the screen as they are dewatered to a moisture content of 18 to 20 percent before exiting through a discharge spout at the periphery of the screen.

The screened and dewatered prills then pass on to the horizontal fluid bed dryer, which further reduces the moisture content to 0.5 percent. By using a combination of heat, air flow, and vibration, the dryer separates and fluidizes the individual particles to maximize drying.

Once dried, the prills are conveyed via a TipTrak bucket conveyor to a Kason four-deck circular vibratory classifier that separates the prills into five fractions ranging from 3.5 to 1 mm. The classifier consists of a top deck with a 6 mesh screen. Each deck below has a screen with progressively smaller apertures – 8 mesh, 14 mesh, and 18 mesh, respectively. Prills smaller than 18 mesh exit the classifier’s bottom discharge spout.

Finally, the classified prills are fed into a Contemar indoor flexible fabric silo. The storage silo consists of four compartments, one for each size of classified prill. The silo is constructed from uncoated flexible fabric that is impermeable to powder and microorganisms, while remaining permeable to air. This feature eliminates the development of condensation and moisture within the silo. The flexible nature of the Contemar fabric silo improves product flow and reduces the risk of product bridging as it transfers into the bag filler. Hence, no special discharge aids are required.

Ostara needed a bulk bag filling system to fill bulk bags from the Contemar silos for shipment. After a careful examination of potential suppliers they selected Spiroflow for its C2-2R bulk bag filler to install directly below the Contemar silo.

The Spiroflow C2-2R bulk bag filler was provided with a slide gate fill control valve, automatic height adjustment to accommodate bulk bags 30-70 in. tall, a weigh platform with NTEP certified load cells and weigh controller for gain-in-weight bulk bag filling, vibration for product compaction to provide safe and stable filled bulk bags, automatic bag loop release, an automated roller conveyor, and a gravity roller conveyor.

An operator installs an empty bulk bag by attaching the bag loops onto the bag hooks and placing the bag filling spout over the inflatable neck seal. From the control panel the neck seal is inflated to firmly secure the bag spout and the desired fertilizer prills are loaded from the silo above utilizing the slide gate fill control valve. The weigh controller fills the bulk bag to the programmed 1 ton weight by utilizing ‘fast fill’ then transitioning to ‘dribble feed’ for the highest weighing accuracies. The inflatable neck seal then deflates, the bag loops pneumatically release, and the operator ties off the bag spout before the automated roller conveyor advances the filled bulk bag to the gravity roller conveyors for removal by forklift.

“Spiroflow was a good fit,” said Aynul Dharas, VP of projects for Ostara. “They had the right experience and we were confident that they could handle our fertilizers effectively.”

A key aspect of Ostara’s technology is gently and safely handling the fertilizer (struvite) prills as they move through the process. Because the struvite prills are somewhat friable and must retain their size and shape to work effectively as a slow-release fertilizer, product degradation is a key concern in handling. Another key concern in product handling is spillage: Because wastewater treatment facilities are often minimally staffed, regular cleanup of spilled product would increase the operational costs. To address these challenges, Ostara selected a TipTrak TT500 bucket conveyor manufactured by UniTrak Corporation Ltd. This conveyor’s interlocking bucket design, where each bucket is connected to its neighbor via a rubber joint strip, ensures gentle product handling and minimizes spillage from infeed to discharge. The small footprint of the conveyor also met Ostara’s process needs: With a minimum lower horizontal length of less than five feet, the conveyor was easy to integrate into confined spaces within facility layouts.

Specific customization that UniTrak carried out on the TipTrak TT500 for Ostara included the following:
• Extended legs on the lower horizontal sections – this minimizes the fall of product from the dryer, reducing product dusting.
• Special infeed transition – rubber skirting around the infeed area to ensure all product is directed into the center of the buckets
• Bucket knocker – a mechanical discharge assist device
• Rectangular-to-round discharge chute – for “sealed” connection to the infeed of the classifier machine

“UniTrak’s ability to provide a customized, easy-to-install and maintain solution has made the material handling aspect of the process much simpler, and Ostara have now standardized on the TipTrak equipment at all of its sites in North American and Europe,” said Ahren Britton, Ostara chief technology officer.

With more than 10 municipalities in North America adopting the Ostara system, and several more installations on the horizon, Ostara is an excellent example of how a company can successfully integrate various types of equipment made by different manufacturers within its operations.

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BC Business | Going With the Flow: Local Companies Find Innovation in Wasterwater Treatment

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The Source | Ostara’s circular approach to phosphorus recovery

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Ellen MacArthur Foundation | Case Study: Ostara Nutrient Recovery Technologies – Closing the Nutrient Loop

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Planet Money | P Is For Phosphorus

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Medill Reports | Fighting the War Against Phosphorous

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World Water | Greater Chicago’s nutrient recovery facility wins top award

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EnvironmentGuru | Ostara Nutrient Technologies Makes List of Cleantech Export Stars

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Chemical & Engineering News | Tapping sewage as a source of useful materials

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South African Instrumentation and Control | Recovery of Nutrients from Wastewater

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The MWRD of Greater Chicago’s Nutrient Recovery Facility earns Top Honor from Water Environment Federation

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Water & Wastewater Asia | WEF honours operational and design excellence in water infrastructure

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Water Canada | Continental Access, Key to Canadian Water Cleantech Success

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Daily Commercial News | Vancouver firm harvests wastewater systems for profit

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Fertilizer International | P Recovery: From Evolution to Revolution

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Metro News | Five Vancouver Clean Tech Companies Making Waves

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Executive Voice Publishing | The Best of Canada Report: Honoring Canada’s 150 year Legacy of Commercial Success (as seen in Bloomberg and The Wall Street Journal)

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APEGBC Innovation Magazine: 2016 | 2017 Project Highlights

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SDTC SUCCESS STORY | Partnering for real results. Meeting environmental goals. Moving cleantech to market.

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Urban Biocycles | Ellen MacArthur Foundation

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Black & Veatch | World’s largest nutrient recovery facility produces valuable, environmentally friendly fertilizer

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DWA | Phosphorrückgewinnung in der Praxis –so funktioniert es in den Niederlanden

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Global Water Intelligence| Beating the Burn Rate for Resource and Energy Recovery from Sludge

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Ostara Named to Global Cleantech Group Hall of Fame

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Solids and Bulk Handling Magazine | Gentle Handling

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Matthew Kuzma joins Ostara as Vice President of Nutrient Recovery Solutions

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AQUA STRATEGY | A growth opportunity – how recovery of phosphorus from wastewater is bringing success for Ostara

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ESEM | Wastewater converted to ecofriendly fertilizer with the help of dewatering, classifying screeners

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Ostara’s Technology Key in Creating the New Energy and Nutrient Factories of the Future

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W&WD | A Solution for Saskatoon

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WATER ONLINE | Measuring The Impact Of Phosphorus Recovery — From The Midwest To The Gulf Of Mexico

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POWDER & BULK SOLIDS | Wastewater Phosphorous Recovery: Process and Equipment

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CWS | Clean Water Services Recognized as Utility of the Future

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VANCOUVER SUN | Vancouver’s Ostara aims to harvest from municipal waste rather than mining phosphorus

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WE&T | Resource to recovery: Nutrient recovery and the evolution of utilities of the future

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WATER BRIEFING | Dutch Waterboard opens Europe’s first nutrient recovery facility at Amersfoort WwTW

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DUTCH WATER SECTOR | Next-step sludge treatment integrates three advanced technologies at wwtp Amersfoort, the Netherlands

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SUSTAINABLE BRANDS | Chemical Plant, Nutrient Recovery Facility Bring Circular Economy One Step Closer

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BNN | From wastewater to eco-friendly fertilizer

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WASHINGTON TIMES | Chicago, private company to turn wastewater into fertilizer

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Metropolitan Water Reclamation District of Greater Chicago and Ostara Open World’s Largest Nutrient Recovery Facility to Help Recover Phosphorus and Protect Mississippi River Basin

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CHICAGO TRIBUNE | Chicago turning river pollutants into fertilizer

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CBS CHICAGO | New System Will Recycle Harmful Substances From Chicago Water System

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CHICAGO TRIBUNE | Clean water: Chicago takes a leap

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WBEZ 91.5 | Robert F. Kennedy Jr. On The Importance Of New Chicago Area Nutrient Recovery Plant

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CHICAGO TONIGHT | Turning Wastewater into Fertilizer, MWRD Plant Battles Nutrient Pollution

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POTATO GROWER | Green Thumb: Crystal Green Provides Season-Long Phosphorus Supply

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KELMAN ONLINE | THE EVOLUTION OF NUTRIENT RECOVERY

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Dutch Waterboard Vallei en Veluwe and Ostara to produce high-value fertiliser, Crystal Green® at Amersfoort WWTP

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Ostara is named in the 2015 Global Cleantech 100: Recognized as a Pioneer in Shaping the Future of Resource Recovery

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Addressing Phosphorus in Lake Erie With Canadian Technologies

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ACWA Services Partners with Ostara to Offer Phosphorus Recovery Technology to UK

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ACWA Services partners with Ostara to offer Phosphorus Recovery Revenue Stream for UK Water Companies

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How can Money be made from Sewage?

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Green Solution to Waste Woes

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New waste recovery system produces fertilizer, saves money

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Gwinnett partnership to help protect water resources

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Gwinnett County and Ostara Partner to Protect Precious Water Resources

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Kennedy helps christen facility to treat, clean waste water

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Robert F. Kennedy Jr. helps Gwinnett leaders open nutrient recovery facility

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Ostara’s Nutrient Recovery Technology Solution Named to Sustainia 100 2015

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Nutrient Recovery Technology Transforms World’s Largest Wastewater Treatment Plant

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Wastewater Nutrient Recovery Scales Up at Planned Edmonton Facility

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Recycling Phosphorus

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From Muck to Gold, The Story of Super Sludge

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When your potatoes need phosphorus, timing is everything

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WEFTEC 2014 Innovation: Ostara Technology Boosts Nutrient Recovery

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Ostara is Named in the 2014 Global Cleantech 100 for 6th Straight year: Recognized as Market Leader in Waste to Wealth Technology

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Nutrient recovery facility in Canada to be scaled up

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New plant will turn city’s waste water into fertilizer

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Ostara and EPCOR Partner to Build Nutrient Recovery Technology Facility

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Edmonton plant aims to transform sewage and reduce discharge into river

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Edmonton facility to turn waste water into fertilizer

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Ostara Sees Improved Dewaterability and Reduced Biosolids Production with Waste-activated Sludge Stripping Technology

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New Ground Broken in Wastewater Treatment

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New nutrient recovery system coming to Edmonton waste-treatment plant

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Phosphorus recovery piloted in Portage la Prairie

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Nutrient recovery technologies help Canada water pollution control plant reclaim phosphorus

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Phosphorus Recovery Demonstrated

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Portage la Prairie Looks to Nutrient Recovery Technologies to Reduce Pollution

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Portage la Prairie tests systems to remove phosphorus, nitrogen from Lake Winnipeg

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$40 million dollar project in Dane County will keep phosphorus out of area lakes

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Madison Metropolitan Sewerage District and Ostara Help Dane County Lead the Way in Reducing Nutrient Pollution

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Canadian waste water treatment firm cleaning up with its technology

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Wastewater Plant Addition Opens with Phosphorus-Reducing Technology

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LIVE at 5 with Robert F. Kennedy Jr.

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Robert F. Kennedy Jr. says good environmental policy creates jobs

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Madison Sewerage District’s new technology to turn phosphorus into fertilizer pellets

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New technology extracts valuable fertilizer from waste

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New Sewage Treatment Technology Helps Clean Up Waste Water Efficiently, Effectively

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Top Technologies Making a Mark

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Exploiting Liquid Assets

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Nutrient Recovery Gains Momentum

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What operational benefits and political motivation persuade utilities to install nutrient recovery systems?

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Ostara Nutrient Recovery Technologies wins Technology Green 15™ Award at the 2013 Deloitte Technology Fast 50™ Awards

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From the sewer to the farm, via startup Ostara

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Fertiliser from sewage saving the planet – and cash

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Come, friendly bombs, don’t fall on Slough. It’s doing good for humans now: Berkshire town to launch £2m nutrient-recovery reactor

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Nutrient-recovery reactor creates sustainable fertiliser

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Eco-fertiliser sewage plan a first

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New reactor to turn sewage into cash

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New Slough reactor turns sewage into fertiliser

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Slough sewage plant turns human excrement into high-quality fertiliser

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From Waste to Worth

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BBC World News Horizons explores why human waste is one of biggest public health issues facing world today

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A Big Deal For Chicago Wastewater… And The Future Of Nutrient Recovery

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Companies Investing in Clean Energy Honored by Cleantech Group

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Global Cleantech 100 list: water and wastewater

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Ostara Named to 2013 Global Cleantech 100 List: Recognized as Market Leader in Technology with World-Changing Impact

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New technology will turn water pollution into fertilizer

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Ostara Named to 2013 Global Cleantech 100 List: Recognized as Market Leader in Technology with World-Changing Impact

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Robert F. Kennedy Jr. and Chicago’s Metropolitan Water Reclamation District Discuss Nutrient Recovery’s Crucial Role in Combatting Water Pollution

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Black & Veatch wins contract for big Chicago water project

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Illinois Water Reclamation Plant Gets Nutrient Recovery System

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B&V and Ostara to build nutrient-recovery system for world’s largest water-reclamation plant

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Black & Veatch and Ostara to Design-Build New Nutrient Recovery System for World’s Largest Water Reclamation Plant

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MWRD contracts out nutrient recovery system at water reclamation plant in Illinois

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Chicago Water District Hires Black & Veatch to Build Plant

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New nutrient recovery system for world’s largest water reclamation plant

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Black & Veatch and Ostara to Design-Build New Nutrient Recovery System for World’s Largest Water Reclamation Plant

Challenge and Change

Challenge and Change

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Nutrients Recovered From Wastewater

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Ostara Opens Nutrient Recovery Facility at Saskatoon Wastwater Treatment

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Saskatoon’s Wastewater Facility to Produce Commercially-Available Fertilizer

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Wastewater Plant Recovers Nutrients, Produces Commercial Fertilizer

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City extracts good from the bad. Nutrient recovery site, nation’s first.

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New facility that turns wastewater into fertilizer opens in Saskatoon

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Saskatoon makes national wastewater history

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City opens nutrient recovery plant

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City of Saskatoon and Ostara Launch Canada’s First Commercial Nutrient Recovery Facility

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Water Management – Maximising water use efficiencies

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Greentech VC Funding Roundup: Ostara, Project Frog, MC10

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Ostara Secures $13 Million in Funding

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Market report – Turf fertilisers

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Backbone 200: The best of everything in Canadian tech

Salvage Job

Salvage Job

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P-Recovery on the Move

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Crystal Green® Receives State Phosphorus Exemptions for Turf Applications

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Ostara: Clean Water can make money!

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Ostara Selected by AlwaysOn as a Going Green Silicon Valley Global 200 Winner

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Ostara appoints Scott McDonald as Executive Vice President and Chief Financial Officer

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Fritz Corrigan Joins Board of Ostara Nutrient Recovery Technologies

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Ostara Wins Deloitte Technology Green 15 Award

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Ostara to Install Commercial Nutrient Recovery Facility in Gwinnett County

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Ostara Named to 2012 Global Cleantech 100 List

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Ostara Selected by The Artemis Project as a 2012 Top 50 Water Company

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The Root of the Matter

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Crystal Green, Environmentally-Responsible Phosphorus Fertilizer

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Six Things Canadians Need to Know about Green and Sustainable Technology

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Why Robert F. Kennedy Jr. Cares About Your Sewage

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Largest Nutrient Recovery Facility Opens in Oregon

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Ostara Raises US $14.5 Million to Launch Major Expansion

Ostara Raises US $14.5 Million to Launch Major Expansion

Ostara Raises US $14.5 Million to Launch Major Expansion

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Ostara Nutrient Recovery Wins $14.5M From VantagePoint et al.

Turning wastewater into fertilizer pellets

Turning wastewater into fertilizer pellets

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First of its kind nutrient recovery plant opens in Hillsboro

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New Hillsboro Plant Sells Nutrients From Sewage

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New Clean Water Services facility in Hillsboro turns waste into gold

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Ostara Opens World’s Largest Municipal Nutrient Recovery Facility

Clean Water Services and Ostara Nutrient Recovery Technologies Open World’s Largest Municipal Nutrient Recovery Facility

Clean Water Services and Ostara Nutrient Recovery Technologies Open World’s Largest Municipal Nutrient Recovery Facility

Washington County sewer utility, Canadian partner open second plant to make fertilizer

Washington County sewer utility, Canadian partner open second plant to make fertilizer

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Clean Water Services, Ostara to unveil $4.75M water-treatment plant

Companies unveil second Nutrient Recovery Facility

Companies unveil second Nutrient Recovery Facility

Bulk bag filler helps company grow bottom line

Bulk bag filler helps company grow bottom line

Recover & Reuse

Recover & Reuse

Wastewater treatment facility considers turning phosphorous into fertilizer

Wastewater treatment facility considers turning phosphorous into fertilizer

Water Works

Water Works

Nutrient Recovery Co. Prevents Phosphorus From Entering Waterways, Recycles it as Fertilizer

Nutrient Recovery Co. Prevents Phosphorus From Entering Waterways, Recycles it as Fertilizer

Saving the Planet: A Tale of Two Strategies

Saving the Planet: A Tale of Two Strategies

Extracting Nutrients From Raw Sewage, To Grow Our Plants Extra Big

Extracting Nutrients From Raw Sewage, To Grow Our Plants Extra Big

Out of the lab and into the marketplace

Out of the lab and into the marketplace

Coping with the city’s continued growth – Forum to examine how innovation will shape urban design

Coping with the city’s continued growth – Forum to examine how innovation will shape urban design

Water Leader Focus Cover Story, Talking Water with the Kennedys

Water Leader Focus Cover Story, Talking Water with the Kennedys

Resource recovery transforms public cost into $$$

Resource recovery transforms public cost into $$$

Nutrient Recovery – Waste not, Want not

Nutrient Recovery – Waste not, Want not

Water, water everywhere

Water, water everywhere

Deloitte Technology Fast 50

Deloitte Technology Fast 50

Ostara Named to the 2011 Deloitte Technology Green 15 (TM)

Ostara Named to the 2011 Deloitte Technology Green 15 (TM)

Ostara Named to 2011 Global Cleantech 100

Ostara Named to 2011 Global Cleantech 100

MAKING WAVES

MAKING WAVES

Reaping Oil From Discarded Plastic

Reaping Oil From Discarded Plastic

Ostara to Build Nutrient Recovery Facility at Saskatoon’s Wastewater Treatment Plant

Ostara to Build Nutrient Recovery Facility at Saskatoon’s Wastewater Treatment Plant

Sustainable Focus

Sustainable Focus

The Ultimate Recycling

The Ultimate Recycling

Utility Plans Expansion of Phosphorus Recovery System

Utility Plans Expansion of Phosphorus Recovery System

Ostara to be named to GoingGreen Global 200

Ostara to be named to GoingGreen Global 200

Facing up to Phosphorus

Facing up to Phosphorus

Water Is Future for ‘Cleantech’ Investment, Frog Capital’s Omari Says

Water Is Future for ‘Cleantech’ Investment, Frog Capital’s Omari Says

Clean Water Services turns liquid sewage into fertilizer — and an energy tax credit

Clean Water Services turns liquid sewage into fertilizer — and an energy tax credit

Where Canada Shines: water tech

Where Canada Shines: water tech

Innovation key to economic strategy in Ontario

Innovation key to economic strategy in Ontario

The case for recycling the stuff in your toilet

The case for recycling the stuff in your toilet

Ostara Named to The Artemis Top 50; wins GLOBE Award for Technology Innovation and Application

Ostara Named to The Artemis Top 50; wins GLOBE Award for Technology Innovation and Application

When Veolia works with cleantech startups

When Veolia works with cleantech startups

Transforming Wastewater into Ecological Fertilizer

Transforming Wastewater into Ecological Fertilizer

2011 BCBusiness Guide to Innovation

2011 BCBusiness Guide to Innovation

Veolia accelerates green start-up support programme

Veolia accelerates green start-up support programme

Veolia Picks Partners: GreenRoad, Ostara and More

Veolia Picks Partners: GreenRoad, Ostara and More

Water, wastewater startups among first partnerships in Veolia cleantech program

Water, wastewater startups among first partnerships in Veolia cleantech program

Nutrient Recovery Facility To Be Installed At Oregon Wastewater Treatment Plant

Nutrient Recovery Facility To Be Installed At Oregon Wastewater Treatment Plant

Clean Water Services to Add Second Ostara Nutrient Recovery Facility at Rock Creek Wastewater Plant

Clean Water Services to Add Second Ostara Nutrient Recovery Facility at Rock Creek Wastewater Plant

OSTARA: Full Recovery

OSTARA: Full Recovery

Fertilizers boost declining B.C. fish populations

Fertilizers boost declining B.C. fish populations

Sewer Doer: keeping good money from going down the drain.

Sewer Doer: keeping good money from going down the drain.

From Problem to Product

From Problem to Product

Water treatment faces scale-up funding hurdles

Water treatment faces scale-up funding hurdles

Audubon International Partners with Ostara Nutrient Recovery Technologies, Inc.

Audubon International Partners with Ostara Nutrient Recovery Technologies, Inc.

Turning wastewater into a revenue stream

Turning wastewater into a revenue stream

Hampton Roads Sanitation District and Ostara Win National Council of Public-Private Partnerships Award

Hampton Roads Sanitation District and Ostara Win National Council of Public-Private Partnerships Award

Hamilton: Canada’s invisible cleantech scene

Hamilton: Canada’s invisible cleantech scene

Ostara Named a Global Cleantech 100 Company for the Second Straight Year

Ostara Named a Global Cleantech 100 Company for the Second Straight Year

Ostara Selected by AlwaysOn as a GoingGreen Silicon Valley 100 Winner

Ostara Selected by AlwaysOn as a GoingGreen Silicon Valley 100 Winner

Madison Metropolitan Sewerage District and Ostara Partner to Install Commercial Nutrient Recovery Facility

Madison Metropolitan Sewerage District and Ostara Partner to Install Commercial Nutrient Recovery Facility

A Growing Waste Line

A Growing Waste Line

Thames Water’s Slough Sewage Works to Build Ostara Facility

Thames Water’s Slough Sewage Works to Build Ostara Facility

London sewage to nourish golf greens

London sewage to nourish golf greens

Plant turns sewage into a resource

Plant turns sewage into a resource

City of York and Ostara Open Third Commercial Facility

City of York and Ostara Open Third Commercial Facility

Kennedy, Rendell praise York City plant

Kennedy, Rendell praise York City plant

York wastewater plant unveils new system

York wastewater plant unveils new system

UBC technology draws phosphorus from raw sewage

UBC technology draws phosphorus from raw sewage

Finding the right treatment

Finding the right treatment

Engineers with a green streak stand out

Engineers with a green streak stand out

OSTARA NAMED TO THE WORLD ECONOMIC FORUM’S 2011 LIST OF TECHNOLOGY PIONEERS

OSTARA NAMED TO THE WORLD ECONOMIC FORUM’S 2011 LIST OF TECHNOLOGY PIONEERS

Phosphorus: A Resource in Decline

Phosphorus: A Resource in Decline

Partnership in the Bay

Partnership in the Bay

Ostara Selected as a Top 50 Water Company by The Artemis Project™

Ostara Selected as a Top 50 Water Company by The Artemis Project™

Where Sewage Meets ‘Peak Phosphorus’

Where Sewage Meets ‘Peak Phosphorus’

Two green-tech startups capture the value of wastewater

Two green-tech startups capture the value of wastewater

HRSD, Ostara Partner to Recover Nutrients and Make Fertilizer

HRSD, Ostara Partner to Recover Nutrients and Make Fertilizer

Hits and misses

Hits and misses

Hampton Roads Business Briefs

Hampton Roads Business Briefs

Are We Giving Crap a Bum Rap?

Are We Giving Crap a Bum Rap?

HRSD’s Launch of Nutrient Recovery Facility Lauded as ‘Great Day for Chesapeake Bay’

HRSD’s Launch of Nutrient Recovery Facility Lauded as ‘Great Day for Chesapeake Bay’

A New Water Market: Think of it as Liquid Gold

A New Water Market: Think of it as Liquid Gold

Suffolk Facility to Turn Sewage into Fertilizer is Christened

Suffolk Facility to Turn Sewage into Fertilizer is Christened

Nursery Management & Production – Products

Nursery Management & Production – Products

RFK Jr. visits for plant partnership

RFK Jr. visits for plant partnership

Ostara Aims to Stave Off Peak Phosphorous

Ostara Aims to Stave Off Peak Phosphorous

A New Water Market: Resource Recovery

A New Water Market: Resource Recovery

Virginia Wastewater Treatment Plant First In Chesapeake Bay Watershed to Recover Nutrients and Transform Them into “Green” Commercial Fertilizer

Virginia Wastewater Treatment Plant First In Chesapeake Bay Watershed to Recover Nutrients and Transform Them into “Green” Commercial Fertilizer

New wastewater facility converts nutrients into commercial fertilizer

New wastewater facility converts nutrients into commercial fertilizer

Wastewater into Fertilizer

Wastewater into Fertilizer

Micromidas to Test Sludge-to-Plastic Tech

Micromidas to Test Sludge-to-Plastic Tech

Wastewater-to-fertilizer plant captures nutrients

Wastewater-to-fertilizer plant captures nutrients

Media Alert: Unveiling of New Nutrient Recovery Facility That Will Protect Chesapeake Bay, with Keynote Speaker Robert F. Kennedy, Jr.

Media Alert: Unveiling of New Nutrient Recovery Facility That Will Protect Chesapeake Bay, with Keynote Speaker Robert F. Kennedy, Jr.

Ostara makes water-treatment cheaper — and fertilizer better.

Ostara makes water-treatment cheaper — and fertilizer better.

This One’s a Two-Fer

This One’s a Two-Fer

Renovating American Infrastructure Mess #5: Sewage

Renovating American Infrastructure Mess #5: Sewage

New product, Crystal Green®: Slow Release Fertilizer Begins Commercial Production

New product, Crystal Green®: Slow Release Fertilizer Begins Commercial Production

World’s Only Slow Release, Renewable Fertiliser Begins Commercial Production – Crystal Green® Proven Effective for Turf, Nursery, Specialty Markets

World’s Only Slow Release, Renewable Fertiliser Begins Commercial Production – Crystal Green® Proven Effective for Turf, Nursery, Specialty Markets

Ostara begins production on Crystal Green slow-release, renewable, environmentally safe fertiliser

Ostara begins production on Crystal Green slow-release, renewable, environmentally safe fertiliser

First slow-release, renewable fertilizer now being produced

First slow-release, renewable fertilizer now being produced

New, Renewable Fertilizer Introduced

New, Renewable Fertilizer Introduced

Crystal Green slow-release, renewable fertilizer begins commercial production

Crystal Green slow-release, renewable fertilizer begins commercial production

New facility will recycle nutrients

New facility will recycle nutrients

Wastewater project in Durham turning out environmentally friendly fertilizer

Wastewater project in Durham turning out environmentally friendly fertilizer

HRSD Treatment Plant to Build Full-Scale Nutrient Recycling Facility Nutrients will be Recycled into ‘Green’ Commercial Fertilizer

HRSD Treatment Plant to Build Full-Scale Nutrient Recycling Facility Nutrients will be Recycled into ‘Green’ Commercial Fertilizer

Sewage’s Cash Crop

Sewage’s Cash Crop

The Next Big Thing

The Next Big Thing

CrystalGreen® “Renewable” Slow-Release Fertilizer

CrystalGreen® “Renewable” Slow-Release Fertilizer

New Fertilizer Product Features Unique Combo

New Fertilizer Product Features Unique Combo

Salvageable sludge eases stress load

Salvageable sludge eases stress load

‘Green’ Product Changes Fertilizer Landscape

‘Green’ Product Changes Fertilizer Landscape

The Disappearing Nutrient

The Disappearing Nutrient

York approves construction of wastewater nutrient-recycling facility

York approves construction of wastewater nutrient-recycling facility

York Wastewater Treatment Plant to Employ Full-Scale Nutrient Recycling Technology

York Wastewater Treatment Plant to Employ Full-Scale Nutrient Recycling Technology

Severn Trent First in Europe to Recycle Nutrients into “Environmentally Friendly” Commercial Fertiliser

Severn Trent First in Europe to Recycle Nutrients into “Environmentally Friendly” Commercial Fertiliser

VantagePoint Venture Partner’s Portfolio Companies Take Top Rankings in Guardian’s Global CleanTech 100

VantagePoint Venture Partner’s Portfolio Companies Take Top Rankings in Guardian’s Global CleanTech 100

Turning sewage into a growth industry

Turning sewage into a growth industry

Sewage plant turns muck into moolah

Sewage plant turns muck into moolah

New filtering technology converts waste to fertilizer

New filtering technology converts waste to fertilizer

Kennedy lauds sewage plant’s green setup

Kennedy lauds sewage plant’s green setup

Fertilizer, Feed and Other Valuables in Wastewater

Fertilizer, Feed and Other Valuables in Wastewater

Oregon Wastewater Treatment Plant First in the U.S. to Recycle Nutrients Into ‘Green’ Commercial Fertilizer

Oregon Wastewater Treatment Plant First in the U.S. to Recycle Nutrients Into ‘Green’ Commercial Fertilizer

The (Not So Sweet) Smell of Success

The (Not So Sweet) Smell of Success

JFK’s nephew joins local waste-water treatment firm’s board of directors

JFK’s nephew joins local waste-water treatment firm’s board of directors

Robert F. Kennedy, Jr. Joins Board of Ostara Nutrient Recovery Technologies Inc.

Robert F. Kennedy, Jr. Joins Board of Ostara Nutrient Recovery Technologies Inc.

SFPUC: Technology Recycles Sewage into Fertilizer

SFPUC: Technology Recycles Sewage into Fertilizer

SFPUC and Ostara Demonstrate Innovative Technology That Recycles Harmful Sewage Byproduct to Environmentally-safe Fertilizer

SFPUC and Ostara Demonstrate Innovative Technology That Recycles Harmful Sewage Byproduct to Environmentally-safe Fertilizer

Chinese news article on Ostara process at San Francisco pilot

Chinese news article on Ostara process at San Francisco pilot

SFPUC and Ostara Demonstrate Innovative Technology That Recycles Harmful Sewage Byproduct to Environmentally-Safe Fertilizer

SFPUC and Ostara Demonstrate Innovative Technology That Recycles Harmful Sewage Byproduct to Environmentally-Safe Fertilizer

Clean Water Services to extract nutrients from waste for fertilizer

Clean Water Services to extract nutrients from waste for fertilizer

B.C. Technology Scores Market Success

B.C. Technology Scores Market Success

Ostara Nutrient Recovery Technologies Receives $10.5 Million in Financing

Ostara Nutrient Recovery Technologies Receives $10.5 Million in Financing

B.C firm inks deal to convert sewage to fertilizer

B.C firm inks deal to convert sewage to fertilizer

Tigard’s wastewater soon to be bringing in the bucks

Tigard’s wastewater soon to be bringing in the bucks

Ostara Nutrient Recovery Technologies Raises U.S. $10.5 Million to Accelerate Commercialization of CleanTech Water Treatment Process

Ostara Nutrient Recovery Technologies Raises U.S. $10.5 Million to Accelerate Commercialization of CleanTech Water Treatment Process

Ostara Nutrient Recovery Technologies Inc.: Oregon Wastewater Treatment Plant Is the First in U.S. to Recycle Nutrients Into “Green” Commercial Fertilizer

Ostara Nutrient Recovery Technologies Inc.: Oregon Wastewater Treatment Plant Is the First in U.S. to Recycle Nutrients Into “Green” Commercial Fertilizer

Update on Ostara from the Centre European d’Etudes des Polyphosphates

Update on Ostara from the Centre European d’Etudes des Polyphosphates

Wastewater reactor turns sewage into money

Wastewater reactor turns sewage into money

Reactor Recycles WW Nutrients Into Fertilizer

Reactor Recycles WW Nutrients Into Fertilizer

Edmonton Reveals World’s First Industrial Scale Sewage Treatment Facility to Recycle Nutrients Into Environmentally-Safe Commercial Fertilizer

Edmonton Reveals World’s First Industrial Scale Sewage Treatment Facility to Recycle Nutrients Into Environmentally-Safe Commercial Fertilizer

It’s a beautiful concept: Protect the environment while making money

It’s a beautiful concept: Protect the environment while making money

Firm makes fertilizer the eco-friendly way

Firm makes fertilizer the eco-friendly way

CW’s Durham treatment plant sludge may just smell like money

CW’s Durham treatment plant sludge may just smell like money

Waste Not, Want Not for Local Firm

Waste Not, Want Not for Local Firm

System turns sewage nutrients into fertilizer

System turns sewage nutrients into fertilizer

Tigard treatment plant turns waste into fertilizer

Tigard treatment plant turns waste into fertilizer

Sewage seen as profit source

Sewage seen as profit source

Tigard’s pilot project turns pollutants into fertilizer

Tigard’s pilot project turns pollutants into fertilizer

Clean Water Services’ wastewater treatment facility conducts trials of new environmentally-friendly technology from Canadian company

Clean Water Services’ wastewater treatment facility conducts trials of new environmentally-friendly technology from Canadian company

New technology helps businesses and environment

New technology helps businesses and environment

Chesapeake Bay sewage treatment plant successfully completes trials of new environmentally-friendly technology from Canadian company

Chesapeake Bay sewage treatment plant successfully completes trials of new environmentally-friendly technology from Canadian company

Sewage-to-fertilizer solution to be launched in Edmonton

Sewage-to-fertilizer solution to be launched in Edmonton

UBC spinoff turns wastewater into ‘gold’, Edmonton first customer for new fertilizer

UBC spinoff turns wastewater into ‘gold’, Edmonton first customer for new fertilizer

City embarks on waste water technology pilot project

City embarks on waste water technology pilot project

Pilot-scale struvite recovery from anaerobic digester supernatant at an enhanced biological phosphorus removal wastewater treatment plant

Pilot-scale struvite recovery from anaerobic digester supernatant at an enhanced biological phosphorus removal wastewater treatment plant

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