خيارات البحث
النتائج 41 - 50 من 113
Reconditioning of food processing brines
1970
Mercer, Walter A.
Membrane materials for wastewater reclamation by reverse osmosis
1970
Milstead, C. E. | Douglas, A. S. | Tagami, M.
Legal aspects of water storage for flow augmentation
1970
Electroosmotic pumping for dewatering sewage sludge
1970
Greyson, Jerome C.
Benefits of water quality enhancement
1970
Nemerow, Nelson L.
Disposal of brines produced in renovation of municipal wastewater
1970
Pesticides and pollution
1970
Mellanby, Kenneth
Cannery waste treatment: Kehr activated sludge
1970
Fisher, Robert Allen
Underground coal mining methods to abate water pollution
1970
Wilson, Larry W. | Matthews, Noah J. | Stump, James L.
The report is a review of published information pertaining to the abatement of harmful drainage from underground coal mines. Reviewed are new physical approaches to the problem of interdicting water entry into coal mines. These include land management for surface and sub-surface water diversion, the exploitation of water carrying strata, and new mining methods. Some chemical approaches to abatement reviewed include the use of silica gel solutions underground to prevent acid formation, the use of inert gas in active mines, and the use of new and the refinement of known grouting agents.
اظهر المزيد [+] اقل [-]Highlights of selected air pollution research grants
1970
