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| ZnO/O3工艺降解水中微量有机物的研究 | |
| 作者姓名： | 赵大鹏 徐贞贞 王洪蕾 |
| 作者单位： | 1. 宁波钢铁有限公司,能源部,浙江,宁波,315807 2. 哈尔滨工业大学,市政环境工程学院,黑龙江,哈尔滨,150090 3. 济南市水业集团有限责任公司,山东,济南,250002 |
| 摘 要： | 以实验室制备的粉末氧化锌(ZnO)为催化剂,考察了ZnO/O3工艺去除水中有机物的效能.采用总有机碳(TOC)指标反映水中有机污染物的含量.结果表明:臭氧投量为1 mg/L、ZnO投量为300 mg/L时,反应60 min后ZnO-O3工艺对TOC的去除率为46%,比单独臭氧化提高了1倍;反应温度明显影响该工艺对有机物的降解效果,在水温为5,10,20和25 ℃时,TOC的去除率分别为17.5%,31.5%,45.9%和51.3%.臭氧浓度和催化剂投量的增加,可以提高TOC的氧化降解效率. |
| 关 键 词： | 氧化锌 催化臭氧化 总有机碳 饮用水 |
Study on ZnO/O3 process for degradation of organics in water |
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| Authors: | Zhao Dapeng Xu Zhenzhen Wang Honglei |
| Affiliation: | Zhao Dapeng1,Xu Zhenzhen2,Wang Honglei3(1.Sources of Energy Department,Ningbo Steel Co.,Ltd.,Ningbo 315807,China,2.School of Municipal , Environmental Engineering,Harbin Institute of Technology,Harbin 150090,3.Jinan Water Supply Limited Liability Company,Jinan 250002,China) |
| Abstract: | As a catalyst,the powdered ZnO was applied to investigate the efficiency of ZnO/O3 process in degrading organic compounds in raw water.The concentration of organic compounds was characterized by TOC(total organic carbon).Results showed that TOC removal efficiency in ZnO-O3 system was 46% with the initial ozone concentration of 1 mg/L and ZnO dosage of 300 mg/L,about two times as that of ozonation only.Water temperature influenced the TOC degradation obviously,the removal rates of TOC in the ZnO/O3 process w... |
| Keywords: | zinc oxide catalytic ozonation TOC drinking water |
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