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Enhanced biological phosphorus removal (EBPR) has been used for decades to remove phosphorus from municipal wastewater because it allows facilities to meet water quality goals while minimizing chemical consumption and sludge production. However, there is still substantial variability in both the practices applied to achieve EBPR and the level of soluble phosphorus removal achieved.
The objective of this research project was to develop information that can be used to help municipal wastewater treatment plants more efficiently and cost effectively remove phosphorus through EBPR processes.
This project included detailed analysis of routine water quality and operating data, field testing observations, and special studies conducted over the course of the project to evaluate the variability of EBPR, factors influencing EBPR performance, and the relationship between EBPR and the presence of glycogen accumulating organisms (GAOs).
Low Phosphorus Analytical Measurement Study
Phosphorus measurements at very low concentrations have been tested and proven to be unreliable. The establishment of stricter phosphorus discharge requirements has challenged the wastewater...
Solids Role in Tertiary Chemical Phosphorus Removal by Alum
The need to control and remove phosphorus (P) in discharges from wastewater treatment facilities (WWTF) to prevent eutrophication of receiving waters is well known. Regulatory initiatives are...
Application of Membrane Bioreactor Processes for Achieving Low Effluent Nutrient Concentrations
The overall aim of this research was to evaluate membrane bioreactor (MBR) process designs to meet low effluent nitrogen and/or phosphorus concentrations from municipal wastewater treatment...
Advances in Recovering Plasmids from Wastewater: A State of the Science
Plasmids are small rings of double stranded DNA that are found in all three domains of life: the Bacteria, the Archaea, and the Eukarya. Plasmids encode for proteins that provide their host...
Development of Molecular Methods for Detection of Infectious Viruses in Treated Wastewater
Enteroviruses, hepatitis A virus (HAV) and other enteric viruses can survive wastewater treatment processes, even after chlorination, and are found in the final effluents.
These viruses...
Optimizing Biotreatment: Integrated Process Models and Control Strategies
The overall objective of this research project is to develop and implement model-based control strategies for improving biological treatment and document the methodology, benefits, and effort...
Evaluation of GHG Emissions from Septic Systems
The emission rates of greenhouse gases (GHGs) from individual onsite septic systems used for the management of domestic wastewater were determined in this study. A static flux chamber method was...
Biosolids Processing Modifications for Cake Odor Reduction (Phase 3 of Identifying and Controlling the Municipal Wastewater Environment)
Phase 3 of the overall WERF project was developed to study eight Phase 2 hypotheses in more depth, beginning in the laboratory (bench-scale) studies and continuing on...
Membrane Bioreactors for Anaerobic Treatment of Wastewaters (Phase II)
Anaerobic biological treatment systems can offer a number of advantages over their aerobic counterparts. The operational costs associated with anaerobic systems are typically lower than with...
Sustainable Water Services
Sustainable Water Services: A Procedural Guide is the result of the Sustainable Water industry Asset Resource Decisions (SWARD) project, undertaken by a consortium of UK academics...
Tuning Biological Nutrient Removal Plants
Tuning Biological Nutrient Removal Plants increases interest in tuning to enhance both performance and capacity, to provide insight into typical plant operating characteristics, and to stimulate...