| 引用本文: | 韩洪军,庄海峰,赵茜,徐春燕,方芳.非均相催化臭氧处理煤化工生化出水[J].哈尔滨工业大学学报,2014,46(6):50.DOI:10.11918/j.issn.0367-6234.2014.06.010 |
| HAN Hongjun,ZHUANG Haifeng,ZHAO Qian,XU Chunyan,FANG Fang.Research on heterogeneous catalytic ozonation of coal chemical industry wastewater secondary effluent[J].Journal of Harbin Institute of Technology,2014,46(6):50.DOI:10.11918/j.issn.0367-6234.2014.06.010 |
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| 摘要: |
| 煤化工生化出水属于有毒害和难以生物降解的工业废水,为此,采用非均相催化臭氧氧化技术深度处理煤化工生化出水,以负载过渡金属铜和锰的活性炭作为催化剂提高臭氧降解污染物能力．结果表明:该处理对COD和氨氮去除率达60％~72％和30％~35％,处理后出水COD和氨氮平均质量浓度低于60和15 mg／L,显著高于单独臭氧氧化,达到GB18918—2002水污染排放一级B标准;在酸性条件下,催化剂活性受到限制,碱性条件对其具有促进作用. 与单独臭氧氧化相比,催化剂的使用均提高了臭氧对污染物的降解能力;处理后出水的可生化性得到显著提高,不会对受纳水体产生二次污染． |
| 关键词: 煤化工生化出水 臭氧氧化 催化剂 |
| DOI：10.11918/j.issn.0367-6234.2014.06.010 |
| 分类号:X703.1 |
| 基金项目:国际合作项目中-荷研发计划项目经费资助(SDRP: 2012-2016). |
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| Research on heterogeneous catalytic ozonation of coal chemical industry wastewater secondary effluent |
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HAN Hongjun, ZHUANG Haifeng, ZHAO Qian, XU Chunyan, FANG Fang
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(State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 150090 Harbin, China)
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| Abstract: |
| Heterogeneous catalytic ozonation was applied to the treatment of coal chemical industry wastewater secondary effluent. Activated carbon-supported copper and manganese oxide were used as catalysts to assist ozone in degrading COD and NH3-N of secondary effluent. The results indicated that the presence of catalysts significantly elevated the removal efficiency of ozone on COD and NH3-N, as compared to the single ozone oxidation. The final effluent removal efficiency of COD and NH3-N were 60％-72％ and 30％-35％ respectively, the average concentration of COD and NH3-N was lower than 60 and 15 mg／L, and met Wastewater Discharge Standard (GB 18918—2002). The catalytic activity was restricted in acidic conditions and promoted in alkali conditions, however, catalysts improved degradation efficiency regardless of acid-base conditions as compared to the single ozone oxidation. The final effluent biodegradability was significantly improved, and no secondary pollution in the receiving water was produced. |
| Key words: coal chemical industry wastewater secondary effluent ozonation catalyst |
