A new methodology for re-rating and evaluating the performance of primary sedimentation tanks (PSTs) in wastewater treatment plants was developed….
Rapid growth has depleted the excess capacity of the Central Kitsap activated sludge treatment plant advancing the time for upgrading…
Phosphorus removal technology has evolved primarily as a means of controlling nutrient discharges from wastewater treatment plants. In recent years,…
This paper demonstrates how the effective capacity of each unit process in a wastewater treatment plant can be determined using…
Research into endocrine disrupting compounds is shedding light on how many synthetic and natural compounds can have profound and long…
The effect of varying total and volatile solids concentrations and organic loading on the performance of a temperature phased anaerobic…
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 filters (RGF) can convert septic tank effluent into an oxidized, nitrified effluent without generating waste biological sludge. An…
Sludge quality is fundamentally the most important aspect of successfully operating an activated sludge plant. While much attention can be…
Field testing and numerical modeling conducted on two nearly identical 60-foot diameter, 10-ft side water depth circular clarifiers at Incline…
As the result of increasing pressure to be fiscally responsible, owners and operators of wastewater treatment facilities are being forced…
Trickling filters and rotating biological contactors (RBCs) are in common use in the US and protocols for their debottlenecking, rerating…