Batch experiments were performed using mixed liquors from an activated sludge process receiving mainly residential wastewater and another activated sludge process receiving municipal wastewater which contained a significant portion of…
Anyone who has used a computer model for planning a water distribution system knows that the actual running of the model is the easy part. The difficult and labor intensive…
Anyone who has used a computer model for planning a water distribution system knows that the actual running of the model is the easy part. The difficult and labor intensive…
Iron coprecipitation was used in bench-scale tests to remove selenium from stripped sour water generated by two petroleum refineries. Chlorine dioxide and hydrogen peroxide were found to convert selenocyanate in…
A large petrochemical plant (confidential) located in a water-limited area is a major water user. The plant is facing a critical water problem because of several factors: (1) the raw…
Ten water purveyors at Lake Tahoe in Nevada and California formed a partnership to seek filtration avoidance under the Surface Water Treatment Rule of the Safe Drinking Water Act. Watershed…
The concept of reclaiming and reusing wastewater for specific purpose (e.g., irrigation) is one which has been practiced to some extent for many years. More recently, in the last 10…
The first step to total water management is accomplished by admitting that there is a limited water resource that must be protected. It requires utilities and regulatory agencies to acknowledge…
In the summer of 1993, following discussions with the Nebraska Department of Environmental Quality (NDEQ), the City of Lincoln, made a major commitment to conduct comprehensive water quality studies to…
A large petrochemical plant (plant) located in a water-limited area uses large amounts of water in their cooling towers and manufacturing process areas. The plant uses high-purity deionized (DI) water…
To determine factors influencing the hydraulics of constructed wetlands, the following studies have been conducted at the free-water surface Sacramento Constructed Wetlands Demonstration Project; friction surveys, a mass water balance,…
Water resources development, watershed restoration, and environmental eduction have taken on new dimensions. Decisions related to projects, water quality, and capital expenditures are no longer made by an isolated group…