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REDUCTION OF HEXACHLOROETHANE AND CARBON TETRACHLORIDE AT SURFACES OF BIOTITE, VERMICULITE, PYRITE, AND MARCASITE
Citation:
Kriegman-King, M. AND M. Reinhard. REDUCTION OF HEXACHLOROETHANE AND CARBON TETRACHLORIDE AT SURFACES OF BIOTITE, VERMICULITE, PYRITE, AND MARCASITE. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/D-91/247.
Description:
Environmental factors significantly affect the transformation rates and the pathways of halogenated aliphatic compounds. e have studied the transformation of tetrachloromethane (CTET), and hexachloroethane (HCA) in homogenous and heterogenous systems designed to simulate groundwater and sediment conditions. he laboratory studies were aimed at (1) identifying the sediment components which may act as reducing components and (2) quantifying he environmental factors which govern the transformation rates. oth model and natural systems were studied. ur data indicate that the humic acid fraction in combination with sulfide and Fe2+ may promote transformation rates. imilarly, surfaces of sheet silicates, such as biotite and vermiculite, were found to promote degradation of CTET and perchloroethylene, respectively.