Biological Treatment of Odorous Airstreams
Biological treatment of odorous airstreams at wastewater treatment plants is being implemented more frequently in recent years largely because of…
Abandon with Care: Proper Well Closure at Hazardous Waste Sites Is Necessary to Prevent Cross Contamination
Properly abandoning unused wells is important to eliminate the physical hazard of an open well and to preserve the water…
Measuring the Effectiveness of NPDES Stormwater Programs: Sacramento’s Approach
In 1990, the Sacramento County Water Agency and the cities of Sacramento, Folsom, and Galt (see Figure 1) applied for…
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…
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…
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…
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…