UTILIZATION AND APPLICATION OF SEWAGE SLUDGE AS AGRICULTURAL COMPOST
Keywords:
Sewage sludge; Infiltration; Soil aeration, pH, Electrical conductivity, Seed germination, Heavy metalsAbstract
Sewage sludge which results as byproduct of municipal wastewater treatment contains adequate amount of
organic matter. The application of biosolids to land for agricultural purposes is beneficial because organic matter
improves soil structure, tilth, water holding capacity, water infiltration, soil aeration, macro and micro nutrients aid plant
growth. In early days sewage sludge was treated as waste products due to the presence of pathogens and pollutants which
may also contains synthetic materials, as the result of rapid development and urbanization the generation of sewage
sludge also increases to a considerable amount. In-order to handle this situation fertilizers can be replaced with biosolids
in agricultural farms. This paper represents the review of sludge as agricultural compost.