Organic Contamination in California's Water Supply Wells
Ozonation of a Biorefractory Organic Compound
This study involved determination of the degradation of chlorendic acid due to ozonation, possible biodegradation of the resultant products, and possible toxicity of the resultant products....
Risk Assessment for the Multiple Threat from Dioxin Analysis
In this paper, the author focuses on the integrated method of estimating the risks and the evaluation of the risk acceptability based on a systematic classification of all risks involved...
The Effect of UV Radiation on THM Formation in Drinking Waters
This study was undertaken to investigate the feasibility of using combined UV radiation/chlorination process in drinking water treatment for disinfection while producing lower concentrations...
Aerobic Biodegradation of Chlorinated Solvents in Unsaturated Soils
A potentially attractive application of methylotrophic bacteria is in the treatment of contaminated, unsaturated soil. Methane and air could be supplied by injection and withdraw wells,...
Health Risk Assessment
Iowa's Experience with Various Types of Pipe in Natural Gas Service
The Utilities Division, Iowa Department of Commerce, is responsible for the rate, service, and safety regulation of utility companies in the State of Iowa. This paper will summarize a...
The Use of Restrained Joint Ductile Iron Pipe
This paper addresses some of the problems we at U. S. Pipe have observed from restrained joint installations during the past several years and the solutions devised. The restrained joints...
Thrust Restraint of Buried Ductile Iron Pipe
It is the intent of this paper to present current state of the art thrust restraint design, present a basis for calculating required lengths of restraint, and to offer some practical suggestions...
Sliplining with Ductile Iron Pipe
The utilization of Ductile Iron Pipe (DIP) as an alternative to be considered for sliplining rehabilitation of sewer pipelines is evaluated. A recent experience in sliplining a failing...
Effects of Ground Failure on Ductile Iron Pipe
The design studies and procedures outlined in this paper for pipelines that must cross earthquake fault zones are also applicable to similar ground disturbances resulting from landslides,...
Getting the VOCs Out of Well Water
Two technologies are successfully removing volatile organic chemicals (VOCs) from groundwater supplies. Not surprisingly, since the application is new, many of the designs were not optimized...
Underdrain Tube Wall, Perforation Design and OBPA to Minimize Bio-Chemical Clogging
Bio-chemical clogging of underdrains has been most frequently associated with iron deposits (ochre). The underlying sticking agents have been a variety of bacteria and their exudates commonly...
Sorption and Transport of Aldicarb Through the Vadose Zone
The literature was reviewed regarding the sorption and transport of a nonionic organic pesticide aldicarb, an extremely toxic and relatively water soluble carbamate insecticide that has...
Generation of Native FE in Lunar Soil
Electron Spin Resonance (ESR) studies on lunar samples produced some unexpected results which led to recognition of the presence of abundant single-domain Feo...
Lunar Oxygen Production from Ilmenite
Carbotek has developed a process for oxygen production from ilmenite-rich lunar deposits to support lunar base operations and large-volume propulsion needs. The reduction of iron oxide...
Design of Ductile Iron Pipe Systems
To ensure a reliable, low maintenance infrastructure capable of withstanding the test of time, proper initial design is essential. The basis of the design standard for ductile iron pipe...
Spreadsheet Approach for the Design of Air Stripping of Volatile Organic Contaminants (VOCs) From Water
Managing Dioxin
Dioxins, among the most toxic compounds known to man, are by-products from production of other chemical products. There are currently about 5000 metric tons of dioxin-containing wastes...
Projections of Acid Rain Precursor Pollutants
Return to search