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根据考核指标及实际管理的需要，以河南油田炼油厂普遍推流式活性污泥法作为试验对象，选择化学耗氧量、硫化物、温度、溶解氧做为考察因素，选用L9（43）正交表，进行了四因素三水平的正交试验。并将试验结果做了相应的验证，选出了该厂现运行的普通活性污泥法的最佳操作参数，将其用于污水处理后，合格率有了显著提高，取得了良好的经济效益和社会环境效益。
According to the evaluation index and the actual management needs, the general flow-through activated sludge process in Henan Oilfield Refinery was selected as the test object, chemical oxygen demand, sulfide, temperature and dissolved oxygen were selected as the investigation factors. L9 (43) Cross the table, conducted four factors and three levels of orthogonal test. And the test results made the corresponding verification, selected the plant operating the ordinary activated sludge method of the best operating parameters, the use of sewage treatment, the passing rate has been significantly improved, and achieved good economic returns And social environmental benefits.