Royal HaskoningDHV provides its Nereda technology to this consortium via its North American licensee, Aqua-Aerobic Systems. Other project partners include John T. Jones Construction (Fargo, ND) and design engineering firm HDR Inc. (Omaha, NE).

The plant will be built next to the Missouri River. Up until now, all wastewater from South Sioux City and the surrounding area has been treated at Sioux City’s regional wastewater treatment plant. The new plant will ease the growing burden on this plant and leave both facilities with adequate capacity to serve the people in the region.

Following a thorough review of treatment options, Nereda technology was chosen due to its small footprint and low construction and operating cost. The technology’s low energy consumption and process resilience to variable industrial loadings, along with the lack of chemical required in the process, were all major contributors to the decision.

With a range of manufacturing industries in the area, the new plant will need be able to process significant industrial flows, including meat processing, packaged food manufacturing, food and beverage and others. It is designed to treat two million gallons per day (average day) and achieve a high-level of organic and ammonia removal. The overall plant process also includes anaerobic pretreatment, disinfection and aerobic sludge digestion.
The South Sioux City project is tremendously exciting for everyone on the AquaNereda team, It represents another milestone in the widespread acceptance of the AquaNereda technology in North America and adds to the growing installation base currently in Colorado, Alabama, Illinois, Hawaii, Montana, Oklahoma, along with over 200 active projects throughout the USA and Canada.

James Horton

Vice President – Process Group at Aqua-Aerobic Systems

Horton: "Given that the first Nereda plant began operation in an industrial setting over 15 years ago overseas, this state-of-the-art facility will further underscore the power of the technology to many prospective end-users here in North America."

We are very pleased that our partner Aqua-Aerobic Systems has expanded the use of Nereda technology further into the North American market. It demonstrates the strength of our partnership and the capability of the technology. We look forward to identifying further opportunities for our technology in this market.

René Noppeney

Global Director Nereda at Royal HaskoningDHV 

The overall cost of the project is $39 Million, and the construction is expected to start during late summer 2021. The plant is scheduled to be complete and ready for start-up in in Autumn 2023.

Royal HaskoningDHV's award-winning Nereda wastewater treatment solution is already being applied on six continents for municipal and industrial water. With over 88 Nereda projects awarded and completed or being delivered across the world, Nereda technology is a great example of sustainable wastewater treatment, providing industry leading standards of treated water with compact, lower power usage and little or no additional chemical use, using patented granular sludge technology.

South Sioux City selects Nereda technology | Royal HaskoningDHV

Architectural Building Perspective of the Nereda plant at South Sioux City, Courtesy of HDR, Inc