Implications of the EPA's Endangerment Finding, Reporting Rule, and Tailoring Rule for POTWs
The Supreme Court ruling in Massachusetts v. EPA, 549 U.S. 497 (2007) that determined that greenhouse gases (GHGs) including carbon…
Integrating Anaerobic Digester with Liquid Stream Treatment: Modeling Approach
Although, anaerobic digestion (AD) modeling can provide significant benefits in the design, operation and optimization of the digestion performance, AD…
Deriving More Information from Volatile Solids Data
This paper reports on how the calculation of volatile solid destruction (VSd) that may provide a relatively inexpensive and quick…
Biogas Enhancement Pilot Test at Sacramento Regional Wastewater Treatment Plant Proves Feasibility and Value of Co-digestion Using High Strength Organic Wastes
The Sacramento Municipal Utility District (SMUD) currently generates electricity at a cogeneration plant located adjacent to the Sacramento Regional Wastewater…
Evaluating Management Options for Improving Cost-Effectiveness at METROGRO Farm
The Metro Wastewater Reclamation District (Metro District) in Denver, Colorado is the largest metropolitan wastewater treatment facility between the Mississippi…
Performance of a Pilot-scale Continuous Flow Microbial Electrolysis Cell Fed Winery Wastewater
Abstract A pilot-scale (1,000 L) continuous flow microbial electrolysis cell was constructed and tested for current generation and COD removal…
WEF/WERF Cooperative Study of Nutrient Removal Plants: Achievable Technology Performance Statistics for Low Effluent Limits
WEF and WERF cooperated in a comprehensive study of nutrient removal plants designed and operated to meet very low effluent…
Analysis of Organic Nitrogen Removal in Municipal Wastewater by Reverse Osmosis
Organic nitrogen (Norg) removal by the reverse osmosis (RO) process is not well documented in the literature. Unlike inorganic nitrogen…
Simultaneous Biological Nutrient Removal in a Single-Stage, Low Oxygen Aerobic Reactor
Simultaneous biological nutrient removal (SBNR) is referred to as the biological process where nitrogen and phosphorus in excess of that…
Recycling Nitrates to Headworks for Multiple Benefits in a Fixed Film Plant
This paper describes the results obtained at the Littleton/Englewood wastewater treatment plant using an intra-plant nitrified effluent recycle (NER). A…
The Business Case for Optimizing the Operations, Maintenance, and Distribution of Pierce County’s Biosolids Fertilizer Manufacturing Facility
This paper documents the business case evaluation (BCE) used to determine the best alternative for optimizing the operations, maintenance, and…
Two for the Price of One: Increasing Digester Capacity while Reducing Filamentous Bulking through Co-thickening at Tacoma*s CTP
As many wastewater treatment facilities are striving to increase the sustainable operation of their facilities, they turn to increasing process…