Treatment of Wood Furniture Spray Paint Waste water by Air Floating-anaerobic-SBR-activated Carbon Adsorption
The source and characteristics of wood furniture spray paint wastewater were briefly described.According to the design key points of the wastewater treatment process route,the actual project proved that the process technology of"air flotation+anaerobic+SBR+activated carbon adsorption"was feasible and stable to treat wood furniture spray paint wastewater with low C/N ratio.Effluent indicators such as CODCr,BOD5,NH3-N,TP,SS and petroleum were much lower than the tertiary standard in the Comprehensive Sewage Discharge Standard(GB8978-1996)and the indirect emission limit of nitrogen and phosphorus pollutants in Wastewater of Industrial Enterprises(DB33/887-2013).Among them,the removal rate of CODCr was about 96%.BOD5 removal rate was more than 95%,NH3-N removal rate was more than 95%,TP removal rate was about 91%,SS removal rate was about 99%,and petroleum removal rate was about 95%.After treatment,the water color was clear,no odor,good water quality,and part of the wastewater can be reused for production,saving water resources.