Case Histories of Automatic Control of Dissolved Oxygen
Automatic control of mixed liquor aeration in activated sludge processes is being applied in increasing numbers of wastewater treatment plants….
The Operator Joins the Design Team
When we talk about the operator joining the wastewater treatment plant design team, we are not referring to the most…
Navy Water Plant Features Dual Media Filtration
Use of 30 inches of granular activated carbon in dual-media filtration provides effective taste and odor control at the Lemoore…
Using Instrumentation to Increase Efficiency of Plant Pollution Control System-Its Use in the Efficient Management of Digester Gas
Power generation from digester gas has been the subject of increased interest as a result of recent energy shortages and…
Rate Making Practices of State Regulatory Commissions
A survey taken by members of the AWWA Valuation and Depreciation Com. reports the basis and permitted rate of return…
Combined Processing of Wastewater and Solid Waste
The design of a combined facility for wastewater and solid waste processing may provide an energy self-sufficient system in an…
Aeration Innovations
The activated sludge process was discovered quite by accident in 1914 by Arden and Lockett in England (1). Following that…
Unified Theory of Filamentous Activated Sludge
The performance of the activated sludge process is limited by the ability of the secondary sedimentation basin to separate and…
Systemized Approach to Infiltration/Inflow Analysis
The purpose of the Phase 1 infiltration/inflow analysis is to determine by a “desk-top” analysis approach that the infiltration/inflow entering…
The Water Industry in the Decade of Environmental Concern
Slowly but surely our institutions are responding to our country’s desire for a major effort to clean up our environment…
Treatment Plant Automation
The term “automation”, as applied to wastewater treatment, refers to the automatically controlled operation of a process or system by…
Treatment of Combined Sewage and Fruit Canning Wastes, San Jose, California
Disposal of sewage and industrial wastes from San Jose and vicinity to the tidewaters of southeast San Francisco Bay has…