This article presents a study of biosorption wastewater treatment. Water treatment sludge, a waste product from thermal power plants, is used for treatment. The introduction of sludge allows for more efficient biological wastewater treatment, as evidenced by reduced COD, BOD5, ammonia nitrogen, and phosphate values. Improved sedimentation properties of activated sludge and a beneficial effect of sludge on the detoxification process are demonstrated.

Keywords: biosorption, energy waste, activated sludge, wastewater treatment, quality indicators, sedimentation properties, detoxification