World Water Works, a designer and manufacturer of wastewater treatment solutions, has been selected by the District of Columbia Water and Sewer Authority (DC Water) and the Hampton Roads Sanitation District (HRSD) to bring their patent-pending AvN technology to the global marketplace.
The technology, which is named for the balance it achieves in ammonia oxidizing bacteria vs. nitrite oxidizing bacteria (NOB), is a wastewater process control and optimization technology that utilizes a proprietary control strategy, applying selective pressure to aid in the segregation of the desired bacterial populations. This allows wastewater treatment systems to achieve very low total nitrogen discharge parameters with upfront carbon diversion for other beneficial uses.
AvN delivers a rapid return on investment to customers by managing the influent carbon, minimizing the alkalinity demands and reducing the energy requirement of the system, all while maintaining superior effluent quality. “The controller possesses a unique feature that converts only the amount of ammonia-nitrogen needed to be removed through nitrite shunt or deammonification, promoting better management of incoming organics and bicarbonate alkalinity for more effective NOB out-selection,” said World Water Works CEO Mark Fosshage.
Along with DC Water and HRSD, World Water Works is building a demonstrative site featuring the Ideal Future Plant which will incorporate the AvN technology and other components including a post-Anammox MBBR to aid in very low total nitrogen limits with minimum energy and chemical additions.
World Water Works is expected to have a few projects in progress before the end of 2015 that will incorporate the AvN technology.
Source: World Water Works
