Spray Irrigation of Cannery Waste Proves Both Economical and Environmentally Sound
The seasonal industrial wastewater (SIW) treatment system is one of the major components of the Eugene/Springfield regional wastewater management program….
$225,000 Per Year and Growing
One year ago during the Pacific Northwest Pollution Control Association’s 52nd Annual Conference in Seattle, the Municipal Water Protection Award…
Trickling Filter/Solids Contact Performance with Rock Filters at High Organic Loadings
The performance of the trickling filter/solids contact (TF/SC) process at high organic loadings was studied at the Morro Bay-Cayucos treatment…
Innovative Design for Chloramine Removal for Pharmaceutical Company Water Supply
In the spring of 1985, the Metropolitan Water District of Southern California (MWD) converted its method of water supply disinfection…
Assessment of Phased Isolation Ditch Technologies
The U.S. Environmental Protection Agency (EPA) has established a program to identify emerging wastewater technologies that may be currently considered…
Activated Sludge Secondary Clarifier Operations and Design Considerations
The EPA Water Engineering Research Laboratory (WERL) sponsored a symposium on activated sludge clarifier design and operation in Cincinnati, Ohio…
A Low-Cost Alternative to a Marine Discharge: Elk River Treatment Plant in Eureka, California
If ever a community deserved a solution to its wastewater management problems, it was the City of Eureka in 1980….
Defeating the Enemy from Within–Recycle Streams from Solids Processing
Recycle streams are the liquid streams which result from almost all solids processing within a wastewater treatment plant, including separation,…
Establishing an Effective Program for Sewer Rehabilitation
A number of U.S. cities have sewage collection systems dating back over 100 years. Some of the original brick sewers…
Environmental Aspects of the Stanford University Environmental Safety Facility
Modern medical treatment, laboratory research leading to breakthroughs in scientific knowledge, education for tomorrow’s leaders–these are among the benefits society…
Sludge Disposal by High-Rate Land Application at the Sacramento Regional Wastewater Treatment Plant
Efficient, high-rate sludge application to soils at the Sacramento Regional Wastewater Treatment Plant (SRWTP) site at Sacramento, California, has been…
Engineering Implications of a New Trickling Filter Model
For more than 20 years, engineers have used fairly simple design equations, such as the modified Velz equation, to design…