DOING MORE WITH LESS – UNLOCKING CAPACITY
After almost fifty years of service, the City of Ukiah’s Wastewater Treatment Plant (WWTP) began to show indications it was…
Developing Equitable Stormwater Fees
When a city turns to billed stormwater fees in support of a new stormwater program, the issue of fairness will…
DEVELOPING CONTROL SYSTEM STANDARDS AND IMPLEMENTING THOSE STANDARDS AT AN EXISTING PLANT
The King County Department of Natural Resources and Parks, Wastewater Treatment Division (WTD), provides wastewater conveyance and treatment services to…
Determine the Affect of Individual Wastewater Characteristices and Variances on Primary Clarifier Performance
The Water Environment Research Foundation sponsored a project to investigate the affect of various wastewater characteristics on primary clarifier performance…
Dealing with Fog: a Problem or Opportunity?
In recent years there has been growing concern for sewer collection system capacity management (CMOM) and the prevention of sewer…
DAF THICKENERS ENHANCING PLANT
Dissolved air flotation (DAF) units have been a traditional thickening device for decades. In recent years, devices such as gravity…
Coprecipitation Removes Trace Metals
Treating wastewater to protect the public and environment from pollutants has become an important issue for regulators and utilities. Reflecting…
Confirming BAF Performance for Treatment of CEPT Effluent
The City of San Diego (City) operates the Point Loma Wastewater Treatment Plant (PLWTP) which can nominally treat and produce…
Columbus, Georgia's High-Efficiency, Low Cost, Digester-Gas-Fired Power Plant.
Growing concern over the cost of power and long-term availability of limited fossil fuel resources for the production of electricity…
Clarifying CFD Modeling's Benefits
Using computational fluid dynamic modeling, engineers can improve clarifier capacity greatly to accommodate peak wet weather flows. Peak wet weather…
City of Ventura Uses Bioscrubber and Carbon to Deal with High Sulfide Odors at New Headworks
The City of Ventura struggled with odors from its plant due to extremely high sulfide concentrations in the influent wastewater….
CHEMICAL OXIDATION LABORATORY TEST FOR TITAN I-A MISSILE FACILITY
A laboratory test of chemical oxidation using permanganate was conducted for the U.S. Army Corps of Engineers (Corps) at the…