METHOD FOR TREATMENT OF AMMONIA-CONTAINING WASTEWATER

摘要

The invention aims at providing a method for wastewater treatment by which at least the ammonia nitrogen content and chemical oxygen demand (COD) of wastewater can be lowered to levels satisfying the effluent standards under Sewage Water Law. A method for wastewater treatment, characterized by subjecting a wastewater (except liquid wastes from photograph developing) which has COD of 0.3g/L or above and an ammonia nitrogen content of 0.5g/L or above to physicochemical or biological treatment and then treating the resulting wastewater with a treatment comprising ammonia oxidizing bacteria and an inorganic dispersion medium on which the bacteria are inclusively immobilized.