Theoretical and Field Comparison of Clarifier Feedwell Sizing
Field testing and numerical modeling conducted on two nearly identical 60-foot diameter, 10-ft side water depth circular clarifiers at Incline…
WERF Workshop: Formulating A Research Program For Debottlenecking, Optimizing And Rerating Existing Wastewater Treatment Plants: Establishing Primary Sedimentation Tank And Secondary Clarifier Evaluation Protocols
As the result of increasing pressure to be fiscally responsible, owners and operators of wastewater treatment facilities are being forced…
WERF Workshop: Formulating a Research Program for Debottlenecking, Optimizing and Rerating Existing Wastewater Treatment Plants: Establishing Biofilm System Evaluation Protocols
Trickling filters and rotating biological contactors (RBCs) are in common use in the US and protocols for their debottlenecking, rerating…
WERF Workshop: Formulating a Research Program for Debottlenecking, Optimizing and Rerating Existing Wastewater Treatment Plants: A Proposed WERF Research Program for Debottlenecking, Optimizing and Rerating Existing Wastewater Treatment Plants
WERF has current or completed projects on benchmarking wastewater treatment functions (e.g. total costs, labor, etc.) and on re-engineering of…
Approach For Diagnosing Secondary Clarifier Performance Problems And Prescribing Improvements
The causes of high effluent suspended solids (ESS) from secondary clarifiers are often incorrectly identified resulting in improperly focused remedial…
Pre-Pasteurization, European and North American Assessment and Experience
Pasteurization of municipal wastewater sludge is of interest in Europe and North America to meet regulations for certain uses of…
Trickling Filter Mythology
Engineering practice in trickling filter design has been influenced by the propagation of myths as much as by the analysis…
Trickling Filter Mythology Discussion
Dr. Parker has raised some very interesting and challenging questions in relation to the technology, or lack of technical foundations,…
Full-scale Evaluation of Factors Affecting The Performance of Anoxic Selectors
The authors are to be commended for their desire to elucidate selector behavior using full-scale plant data. As indicated by…
Interaction of Fuel Hydrocarbons and Chlorinated Solvents at an Aviation Maintenance Facility
Releases of fuel hydrocarbons and chlorinated solvents from a former underground waste management unit at an aviation maintenance facility have…
Cost of Constructed Wetlands Systems
Constructed wetlands have been developed and used for treatment of municipal wastewater and have been reported widely as being low…
A Whole Plant Approach to Evaluating Activated Sludge Treatment Plant Capacity
The Central Contra Costa Sanitary District is in the process of evaluating the capacity of its activated sludge wastewater treatment…