关键词: 序批间歇式反应器, 汽车涂装废水, 好氧颗粒污泥, 微生物

Abstract: In order to study the feasibility of coating wastewater treatment by aerobic granular sludge in SBR，aerobic granular sludge cultivated in domestic wastewater was used as inoculum and gradually acclimated by the coating wastewater. In this way，the shape，physicochemical properties and pollutant removal ability of acclimated granular sludge were observed. The results showed that five weeks later， the acclimated granular didn’t disintegrate but in a more compact structure，white color with an average diameter 1.5 mm，MLSS 8000 mg/L and SVI30 28 mg/L，which represented that both the settling performance and the biomass had been improved. When the reactor operated about 45 days， the pollutant removal ability was found to be in apparent and stable state with effluent concentration of COD，NH4+-N， PO43- -P below 100 mg/L，10 mg/L，1.0 mg/L，which achieved the secondary standard of “Integrated Wastewater Discharge Standard” (GB 8978—1996) as well as the good pollutant removal effect synchronization.

Key words: SBR, coating wastewater, aerobic granular sludge, micro-organism