8Skryski-Mantele S,Bridle E R. Environmental Sound Disposal of Tannery Sludge[J].Wat Res,1995,2(4):1033-1039.
9Flinx. Safe Disposal of Tannery Sludge[J].America Chemical Society,1996,23(3):213-232.
10Clapp C E. Long Term Effects on Crop, Soil and Water Quality of Sewage Sludge Applied to an Agricultural Water-shed(C).In: Proc. of 15th World Congress of Soil Science Symp. Mexico: International society of soil science and Mexican society of soil science
