Plumbing the Quality of a Sewer System
Consultants in Phoenix were recently charged with assessing the city’s sewer system, a portion of which was unlined concrete pipe…
The Effect of Pore Size on Transfer Capabilities, Fouling Tendencies, and Cleaning of Ceramic Air Diffusers
A study of the effect of fouling on the standard oxygen transfer efficiency (SOTE) of ceramic diffusers of four different…
Verification of the Fate of a Volatile Organic Compound in Activated Sludge
The fate of the volatile organic compound, 1,4-dichlorobenzene (DCB) was examined in a bench-scale activated sludge system. A shift in…
Water Quality 2000–Watershed Program Criteria
In 1988, the Water Environmental Federation decided that it was time to take an objective look at the national water…
A Watershed Approach to Total Water Management
The first step to total water management is accomplished by admitting that there is a limited water resource that must…
Incineration – One Solution at Stanford
In August 1986, Stanford University completed the installation of an 800-pound-per-hour incinerator at its Environmental Safety Facility (ESF) on the…
Air Toxics Modelling and Control at a Large Wastewater Treatment Plant
While the issue of odor control has been an important factor in wastewater treatment plant design in the past, new…
Estimating Emissions of Toxic Pollutants
In response to regulatory pressures it has become necessary for wastewater treatment plant operators, owners, and regulators to assess the…
Should Risk Evaluation Be Part of the USEPA Protocol for Monitored Natural Attenuation?
The primary driving force behind investigating, evaluating, and, if necessary, remediating soils and groundwater is to manage risk to human…
Addressing a Wide Range of DNAPL Occurrences at a Manufacturing Facility
The use trichloroethene (TCE) over three decades at a manufacturing site has resulted in impacts from TCE and biodegradation daughter…
Consideration of the Effects of Remediation Technologies on Natural Attenuation
We have long understood and continue to improve our understanding of the geochemical conditions that favor biodegradation of petroleum hydrocarbons….
Research Needs to Optimize Wastewater As A Resource
The word “wastewater” implies that the result of water use is a waste product. Wastewater derives from water use in…