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Résultats 1491-1500 de 62,084
Materials balance in aerated static pile composting [Wastewater sludge processing].
1981
Sikora L.J. | Willson G.B. | Colacicco D. | Parr J.F.
Losses of nitrogen, phosphorus and potassium from agricultural watersheds of minor rivers in the Oka valley [USSR].
1981
Kudeyarov V.N. | Bashkin V.N. | Kudeyarova A.Y.
The losses of nitrogen (NH(,4), NO(,3), N(, org)), phosphorus (P(, ortho), P(, poly), P(, org)) and potassium (K('+)) from watershed areas of minor rivers, draining regions of different agricultural land use in the Oka Valley, U.S.S.R., were investigated. No N, P, and K pollution was shown in these watersheds, even though the rate of losses was found to be highly correlated with the amounts of mineral fertilizers and FYM applied. The losses were also determined by the natural soil fertility, erosion processes and soil texture under the similar level of fertilization.
Afficher plus [+] Moins [-]Direct measurement of gaseous nitrogen losses from an effluent irrigation area [Santa Barbara County; California].
1981
Ryden J.C. | Lund L.J. | Whaley S.A.
Pipeline friction losses for wastewater sludges.
1981
Mulbarger M.C. | Copas S.R. | Kordic J.R. | Cash F.M.
Municipal wastewater reutilization on cultivated soil.
1981
Terry R.E. | Tate R.L.
Re-utilization of municipal wastewater sludges: metals and nitrate.
1981
Chang A.C. | Page A.L. | Bingham F.T.
Characterization of air pollutants from an activated sludge process.
1981
Scheff P.A. | Holden J.A. | Wadden R.A.
Rapid-infiltration research at Flushing Meadows Project, Arizona [Use of wastewater effluent for irrigation].
1980
Bouwer H. | Rice R.C. | Lance J.C. | Gilbert R.G.
Mechanisms and methods for polymer conditioning of activated sludge.
1980
Novak J.T. | Haugan B.E.
Relationship between organic loading, dissolved oxygen concentration and sludge settleability in the completely-mixed activated sludge process.
1980
Palm J.C. | Jenkins D. | Parker D.S.
