Agronomic Effects of Land Application of Water Treatment Sludges

摘要: Economic, regulatory, and legal constraints on alternative disposal methods are raising interest in land application of water treatment sludges. Understanding the agronomic environmental issues is essential before a land-based program implemented. Water sludges may favorably modify pH water-holding capacity soils but generally have little fertilizer value. Supplemental phosphorus (P) will usually be needed to offset strong P-binding these Heavy metal concentrations can limited primarily by controlling purity coagulant chemicals.