Reactor Recycles WW Nutrients Into Fertilizer
Water and Wastewater Newsletter
Vol. 9 – No. 322
EDMONTON, ALBERTA — The City of Edmonton’s Gold Bar wastewater treatment plant has met a milestone by successfully operating for over six months as the world’s first industrial-size nutrient treatment facility to remove phosphorus and other nutrients from municipal biosolids and recycle them into environmentally-safe commercial fertilizer.
The technology, developed by Ostara Nutrient Recovery Technologies Inc. of Vancouver, will help Gold Bar achieve its nutrient removal goals, increase plant capacity and reduce maintenance costs, while also creating a revenue-producing product in the form of a high value fertilizer.
“Since the Ostara reactor was commissioned last spring, it has extracted more than 80 per cent of the phosphorus on average – achieving the design objective of 75 per cent – and 10 to 15 per cent of the ammonia from a flow of 500,000 liters per day, approximately 20 per cent of the Gold Bar plant’s liquid biosolids stream,” said Vince Corkery, Director of Wastewater Treatment at the City of Edmonton’s Gold Bar treatment facility.
“We have worked closely with Ostara over the past two years toward building this first-of-its kind commercial scale nutrient recovery facility and we are very pleased with the operating results,” said Corkery.