A/O生物接触氧化-超滤膜工艺中水回用的研究

Research on water reuse based on the A/O biological contact oxidation-ultrafiltration membrane

将A/O生物接触氧化与超滤膜组合起来,应用PLC自动控制技术,形成一体化的中水回用系统.试验确定了系统运行参数和最优工况.研究结果表明:系统对污水中CODCr、NH+4-N的去除率较高,平均去除率分别为92.40%,94.07%,出水平均浓度为24.40,2.56mg/L,达到了《城市污水再生利用城市杂用水水质标准》(GB/T 18920-2002)的要求,这对中水回用工程的实际应用具有重要价值.

By employing PLC control technology,A/O biological contact oxidation achieves a combination with ultrafiltration membrane to form the integration of water reuse systems.The achievement determines the operating parameters and the optimal conditions.The results show that：the system has a high removal efficiency about removing CODCrand NH＋4-N,the average removal rates meets 92.40% and 94.07%,the concentrations are 24.40and2.56mg/L.The effluent water quality reaches Reuse of Urban Recycling Water Water Quality Standard for Urban Miscellaneous Water Consumption（GB/T 18920-2002）.The study shows a great value for practical application in the water reuse project.