摘要
运用规模为50 t/d的中试装置,比较了混凝沉淀-膜过滤与臭氧-生物接触氧化-膜过滤2种工艺对二沉出水的去除效果,试验结果表明:2种工艺均能有效去除降低水中SS,在一定程度上降低CODCr的浓度,混凝工艺可以使总磷去除到很低的浓度,而臭氧-接触氧化对NH3-N去除效果较好,2种工艺对TN去除率效果较差,去除率均不足20%。混凝沉淀-膜过滤的出水CODCr、TN、TP、NH3-N、SS分别为20.9、16.3、0.16、2.2、5 mg/L,而臭氧-接触氧化-膜过滤的出水CODCr、TN、TP、NH3-N、SS分别为17.3、10.9、1.25、0.59、5 mg/L。
The pilot-scale experiment of 50 t/d was conducted in the wastewater treatment plant, the impact of the coagulation sedimentation-membrane filtration process and ozone-bio-eontact oxidation-membrane filtration process on the pollutant removal of the secondary effluent have been compared. The results showed that two kinds of technology can remove SS effectively, reduce almost 50 % CODCr, coagulation process can remove total phosphorus to very low levels, and ozone- contact oxidation process had promising performance on the removal of NH3-N. Two kinds of process had poor effect on TN, the removal rate of TN was less than 20 %. The effluent CODCr, TN, TP, NH3-N, SS of coagulation precipitation-membrane filtration were 20.9, 16.3, 0.16, 2.2, 5, and the effluent CODCr, TN, TP, NH3-N, SS ozone-contact oxidation-membrane filtration were17.3, 10.9, 1.25, 0.59, 5 mg/L.
出处
《净水技术》
CAS
2015年第A01期92-95,共4页
Water Purification Technology
基金
污水处理厂尾水利用关键技术研究(14R21420700)
关键词
混凝臭氧膜过滤
接触氧化
coagulation ozone membrane filtration contact oxidation
