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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...
Post-Project Monitoring of BMP's/SUDS to Determine Performance and Whole-Life Costs
Over the past 20 years, the use of Best Management Practices (BMPs) in the United States has been instrumental in reducing both the detrimental impacts to receiving water quality and the...
Development of Diagnostic Tools for Trace Organic Compounds and Multiple Stressors
This WERF sponsored research presents a preliminary screening process and ecological diagnostic approaches that could be used to help prioritize and evaluate treated wastewater-influenced sites...
Phosphorus Removal Potential Using Biogenic Iron Oxides
Biogenic iron oxides produced by circumneutral iron-oxidizing bacteria were evaluated for phosphate removal. Traditional batch equilibrium experiments were coupled with bench-scale flow through...
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...
Membrane Bioreactors for Wastewater Treatment
The book covers the subject of membrane bioreactors (MBR) for wastewater treatment, dealing with municipal as well as industrial wastewaters. The book details the 3 types of MBR available and...
Membrane Bioreactors for Municipal Wastewater Treatment
Recent technical innovations and significant cost reductions have sharply increased the potential for using Membrane Bioreactor (MBR) technology in municipal wastewater treatment. MBR technology...
Developing Protocols for Measuring Biosolids Stability
The general goal of this project is to validate test protocols that are commonly used to assess the stability of various biosolids products, and to specify a standard for each test method. Toward...
WateriD User Manual
Agencies are investing enormous resources into asset management programs for their water and wastewater piping systems, including comprehensive asset condition assessments and predictive...