Aeration Innovations

The activated sludge process was discovered quite by accident in 1914 by Arden and Lockett in England (1). Following that…

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…

The performance of the activated sludge process is limited by the ability of the secondary sedimentation basin to separate and…

The purpose of the Phase 1 infiltration/inflow analysis is to determine by a “desk-top” analysis approach that the infiltration/inflow entering…

The term “automation”, as applied to wastewater treatment, refers to the automatically controlled operation of a process or system by…

Slowly but surely our institutions are responding to our country’s desire for a major effort to clean up our environment…

Disposal of sewage and industrial wastes from San Jose and vicinity to the tidewaters of southeast San Francisco Bay has…

Equitable rates are hard to come by. This is one fact that is becoming increasingly clear to utility managers. Rate…

Numerous AWWA committees have studied the possibilities of developing a water-main-extension policy that could be adopted by all water utilities,…

Basic data are offered by the author concerning methods for determining rates for customers based on several relevant considerations of…

The hydraulic design of a wastewater treatment plant involves several objectives, the most important of which are: uniform distribution of…

Trickling filters using rock media have long been a common form of biological treatment in the U.S. Used mostly in…