Activated Sludge for Industrial Wastes Fundamental Principles as Applied to Industrial Waste Treatment
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Chemically Assisted Primary Treatment: A New Approach To Evaluating Enhanced Suspended Solids Removal
Chemically enhanced primary treatment can provide enhanced total suspended solids removal. With these enhanced removals, enhanced removals of other pollutants…
Applying Private Sector Manufacturing Techniques to Wastewater Treatment to Improve Competitiveness
Public utilities are spending $358 million more on assets to deliver the same throughput when compared to private utilities. To…
Evaluation of Primary Sedimentation Tanks Performance By Integrating Mathematical Modeling With Field Testing
A new methodology for re-rating and evaluating the performance of primary sedimentation tanks (PSTs) in wastewater treatment plants was developed….
Application of Optimization Tools Solves Clarifier Denitrification Problem and Identifies Excess Treatment Capacity
Rapid growth has depleted the excess capacity of the Central Kitsap activated sludge treatment plant advancing the time for upgrading…
Achieving 10 PPB, The State-of-The-Art for Phosphorus Removal
Phosphorus removal technology has evolved primarily as a means of controlling nutrient discharges from wastewater treatment plants. In recent years,…
Using Process Simulation Models To Rate Plant Capacity
This paper demonstrates how the effective capacity of each unit process in a wastewater treatment plant can be determined using…
Endocrine Disruptors In Wastewater: Is There Cause For Concern?
Research into endocrine disrupting compounds is shedding light on how many synthetic and natural compounds can have profound and long…
Effect of Varying Solids Concentration and Organic Loading on the Performance of TPAD to Produce Class A Biosolids
The effect of varying total and volatile solids concentrations and organic loading on the performance of a temperature phased anaerobic…
Bio-P Implementation At MCES* Metropolitan W.W.T.P. Within Existing Tankage
The Metropolitan Council Environmental Services (MCES) in St. Paul, Minnesota has recently converted one-quarter of its existing 950,000 m3/d (250-mgd)…
Recirculating Gravel Filter Produces Nitrified Tertiary Effluent
Recirculating gravel filters (RGF) can convert septic tank effluent into an oxidized, nitrified effluent without generating waste biological sludge. An…
Activated Sludge Microbiology, Filamentous and Non-Filamentous Microbiological Problems And Biological Nutrient Removal
Sludge quality is fundamentally the most important aspect of successfully operating an activated sludge plant. While much attention can be…