George Alther

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A relatively new technology for t h e retention and adsorption o f organic pollutants involves the u s e of,organically modified clays. T h e accessible surfaces within the crystalline structure of clay minerals are chemically modified with organic derivatives such as alkylammonium ions. This clay modification imparts an organophilic character to the clay.(More)
Monitoring of 2 disposal operations on Lake Erie near Ashtabula, Ohio, provided an opportunity to employ different approaches to study the physical impact of the disposal of dredged material on the hydraulic regime of the lake in this area. A study conducted in August 1975 involved utilization of several transmissometers placed on 4 anchored vessels and one(More)
A primary sewage treatment plant discharges its effluents into Butler Ditch, Oak Openings, Lucas County, Ohio. A marsh habitat near the discharge outlet, high turbidity, sludge covering the stream bed and pungent odor gave reason to believe that the effluent from the sewage treatment plant contaminated the ditch. Water and stream sediment samples were(More)
Organoclays have found increased acceptance as pre-treatment for activated carbon adsorption systems in both groundwater and wastewater cleanup. The reason is that activated carbon tends to become quickly blinded by large organic molecules of low solubility, particularly oils. However, it is also well established that activated carbon is more efficient at(More)
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