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Результаты 71-80 из 213
Amenability of reverse osmosis concentrate to activated sludge treatment
1971
Gupta, Mahendra | Mason, Donald G.
Responses of teleost fish to environmental stress
1971
Smith, Lynwood S.
Elimination of water pollution by packinghouse animal paunch and blood
1971
The river basin model: chairman and council
1971
Stochastic modeling for water quality management
1971
Krutchkoff, Richard G.
Induced hypolimnion aeration for water quality improvement of power releases
1971
Leach, Lowell E.
Role of animal wastes in agricultural land runoff
1971
Robbins, Jackie W. D. | Howells, David H. | Kriz, George J.
Twelve typical agricultural areas representing three types of animal waste management techniques--lagooning, direct discharge into streams, and land spreading including pasture and drylot units--were studied to determine the amounts of and factors governing stream pollution from swine, dairy, beef, and poultry production operations. More than 1500 stream and lagoon effluent samples were collected with an automatic sampler developed for the study. The samples were analyzed for bacteria, nutrients, and degradable organics. Hydrological and waste management data were also collected. Study results point to the superiority of land spreading for the disposal of animal wastes.
Показать больше [+] Меньше [-]Purification of mine water by freezing
1971
Reduction of salt content of food processing liquid waste effluent
1971
Mercer, Walter A. | Ralls, Jack W.
Engineering methodology for river and stream reaeration
1971
Murro, Ronald P. | Yeaple, Donald S.
