World Water Works Receives AAEES Honor Award
North America’s first full-scale Demon deammonification system was recognized for its sustainable features
World Water Works Inc., a designer and manufacturer of wastewater treatment solutions and Virginia utility Hampton Roads Sanitation District (HRSD), received the American Assn. of Environmental Engineers and Scientists (AAEES) Honor Award for Environmental Sustainability, for implementation of the first Demon sidestream deammonification system in North America. The efficient and ecofriendly Demon process had previously been used only in Europe.
HRSD’s York River Treatment Plant proved a perfect candidate for the Demon system because its existing sequential batch reactors (SBR) and equalization tanks could be easily retrofitted for the process. This allowed simple and inexpensive installation of the system in less than 4 months. Successful operation has continued since early January.
The process is seeded with Anammox bacteria, which aids in a quick start up of a system versus cultivating bacteria from scratch. This factor has proven to be an obstacle for other deammonification technologies. To retain the Anammox bacteria, a unique patent pending separation device provides enrichment of the specialized slow-growing Anammox biomass. The device enhances process robustness and treatment capacity and provides resilience despite changes in wastewater quality.
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