Nitrogen and Phosphorus Pollutants in Cosmetics Wastewater and Its Treatment Process of a Certain Brand

Cosmetics wastewater is one of the sources of nitrogen and phosphorus pollutants that cause eutrophication of water bodies. This paper is to test the cosmetics wastewater in the production process with American Hach method, and the pH and other indicators would be detected during a whole production cycle. The results show that the pH value in wastewater is 8.6~8.7 (average 8.67), SS 880~1090 mg. L^-1 (average 968.57), TN 65.2~100.4 mg.m^-3 (average 80.50), TP 6.6~11.4 mg.m^-3 (average 9.84), NH₃-N 44.2~77.0 mg.m^-3 (average 55.61), COD 4650~5900 mg.m^-3 (average 5490). After pollutant treatment, the nitrogen and phosphorus pollutants in wastewater can reach the standard discharge.