Aerobic wastewater treatment agent and treatment composition, method for producing the same, and aerobic wastewater treatment method

摘要

PPROBLEM TO BE SOLVED: To provide a treatment agent for aerobic wastewater which can improve the sedimentation property of activated sludge and reduce the amount of generated surplus sludge even when the composition and concentration of organic matter in the wastewater change, a method for producing the treatment agent, and a method for treating aerobic wastewater using the treatment agent. PSOLUTION: The treatment agent for aerobic wastewater is made of a salt of calcium, magnesium or potassium of nitrate oxide of young coal, has a melanic index of 2.0-3.0, and has an organic carbon concentration of 800-2,000 mg/L in a water extract. PCOPYRIGHT: (C)2010,JPO&INPIT