Guides

TitleDateExcerpt
Negotiating Chemical And Equipment Contracts With ConfidenceChemical and equipment contracts shape the reliability, safety, and cost of water and wastewater operations. A favorable agreement is not simply the one with…
The ABCs of Biological Phosphorus Removal for OperatorsPhosphorus is an essential nutrient, but too much of it in a receiving water can stimulate algae growth, reduce dissolved oxygen, and damage aquatic…
Using Tracer Studies To Evaluate Wet Weather Storage TanksWet weather storage tanks play a critical role in protecting treatment plants and collection systems during storms. They temporarily hold peak flows, reduce…
Developing A Sewer Spill Prevention And Response PlanA sewer spill can move from a localized operational problem to a public health, environmental, and regulatory emergency within minutes. A blocked force main,…
Advances in Centrifuge Dewatering Polymer OptimizationCentrifuge dewatering has become a central process for reducing biosolids volume, transportation costs, and disposal liabilities at water resource recovery…
Lessons From the LA River Revitalization And Water Quality ImprovementsThe Los Angeles River has long been understood as both essential infrastructure and a public landscape with untapped potential. Its concrete channels protect…
A Practical Framework for Evaluating Wastewater HeadworksHeadworks are the first line of protection for a wastewater treatment plant. They remove screenings, grit, and other debris before these materials can damage…
How Low-Flow Toilets Change Sewer Sediment TransportLow-flow toilets have become a standard part of water conservation programs, building codes, and fixture replacement projects. Modern models typically use 1.28…
Calculating Waste Activated Sludge Wasting RatesWaste activated sludge (WAS) wasting is one of the central control decisions in an activated sludge treatment process. The wasting rate determines how long…
Virtual Reality Is Changing Water Operator TrainingWater and wastewater operators work in environments where decisions must be accurate, timely, and safe. A control-room alarm, pump failure, chemical imbalance,…