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Liquid streams (“reject water” or “sidestream”) generated by the dewatering of digested solids generally contain high levels of ammonia and phosphorus. These liquids can be treated in separate or sidestream processes rather than being directly returned to the mainstream treatment process. Sidestream treatment processes can reduce overall energy and chemical costs and improve treatment reliability for biological nutrient removal facilities. Sidestream treatment processes can also be used for nutrient recovery and reuse.
This document is a compilation of a broad range of biological and physiochemical treatment processes specifically for nitrogen removal and recovery from municipal sidestreams and ammonia-rich industrial wastewaters. The benefits of these technologies are described along with design approaches and full-scale plant experiences. Reuse of recovered ammonia in the form of aqueous ammonia and ammonium salts for industrial and agricultural applications is also discussed. Future research needs in sidestream nitrogen removal and recovery are identified and summarized.
Research Roadmap: Towards an Economic Decision Methodology for Remaining Asset Life
This report is an output of the fourth research track (Track 4) of WERF’s strategic asset management research program ‘Asset Management Communication and Implementation’ (RFPP #06-SAM-1 CO). Track...
Evaluation of Performance and Greenhouse Gas Emissions for Plants Achieving Low Phosphorus Effluents
This project was conducted under the WERF Nutrient Challenge program and included evaluation of operational practices and performance results for wastewater treatment plants designed to meet very...
Application of DNA Microarray Technology for Wastewater Analysis
Deoxyribonucleic acid (DNA) microarrays are widely used for differential expression studies and for detection of virulence genes in pure bacterial cultures. Their use in complex microbial samples...
Molecular Alternatives to Indicator and Pathogen Detection
Microbial quality of water is a prime public health concern in today's world. To protect public health, the World Health Organization and the U.S. Environmental Protection Agency have established...
Decentralized Stormwater Controls for Urban Retrofit and Combined Sewer Overflow Reduction, Phase 2
Phase 1 of this project demonstrated the technical feasibility of using decentralized stormwater controls in urban areas for retrofits and controlling combined sewer overflows. This technical...
Wetland Technology: Practical information on the design and application of treatment wetlands
Water quality standards across the world are being re-written to promote healthier ecosystems, ensure safe potable water sources, increased biodiversity, and enhanced ecological functions....
Best Practices for the Treatment of Wet Weather Wastewater Flows
During wet weather events, separate and combined wastewater collection systems deliver substantial amounts of storm water runoff to wastewater treatment plants. Often these flows...
Indicadores de desempeño para servicios de saneamiento: Manual de Buenas Prácticas
Los manuales de evaluación de desempeño y benchmarking de la IWA se han convertido en una referencia a nivel mundial desde la publicación del primero de ellos en el año 2000. Su éxito se debe a...
State of Knowledge of the Use of Sorption Technologies for Nutrient Recovery from Municipal Wastewaters Nutrients
The depletion of global phosphate rock stores and the energy intensity of ammonia production provide motivation for identifying alternative sources of these essential nutrients. The recovery of...