| ClO_2和Cl_2对城市污水再生水消毒效果的比较 |
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| 引用本文： | 梁光,文李敏. ClO_2和Cl_2对城市污水再生水消毒效果的比较[J]. 中国给水排水, 2009, 25(5) |
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| 作者姓名： | 梁光 文李敏 |
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| 作者单位： | 1. 中国水利水电第三工程局有限公司,陕西,西安,710016
2. 西安市环境保护局,陕西,西安,710068 |
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| 摘 要： | 采用Cl02和C12对西安市的城市污水再生水进行消毒,中试结果表明:当Cl02投加量>7.67mg/L时,经30min接触消毒后,出水中未检出总大肠菌群,以氯代有机物为代表的消毒副产物(DBPs)较进水没有明显增加,出水的COD和浊度分别平均降低了13.2%和17.9%,色度平均减少了5倍当Cl2投加量>6mg/L时,经30min接触消毒后,出水中未检出总大肠菌群,出水中的二氯甲烷和三氯甲烷浓度是进水中的2-3倍,三卤甲烷含量则达到进水的4-6倍,同时生成少量的二氯一溴甲烷,出水的COD和浊度分别平均降低了17.8%和8.75%,色度减少了5-10倍.
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| 关 键 词： | 城市污水再生水 消毒 |
Disinfection of Reclaimed Water of Urban Sewage with ClO_2 and Cl_2 |
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| LIANG Guang,WEN Li-min. Disinfection of Reclaimed Water of Urban Sewage with ClO_2 and Cl_2[J]. China Water & Wastewater, 2009, 25(5) |
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| Authors: | LIANG Guang WEN Li-min |
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| Affiliation: | 1.Sinohydro Bureau 3 Co.Ltd.;Xi'an 710016;China;2.Xi'an Environmental Protection Bureau;Xi'an 710068;China |
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| Abstract: | ClO2 and Cl2 were used to disinfect the reclaimed water of Xi'an urban sewage.When the dosage of ClO2 is more than 7.67 mg/L,the total coliform bacteria may not be detected in the effluent after 30 min;the disinfection by-products represented by chlorinated organic compounds in the effluent do not increase obviously,compared with the influent,COD and turbidity of the effluent decrease averagely by 13.2% and 17.9% respectively,and the chromaticity reduces by 5 times.When the dosage of Cl2 is more than 6 mg/L... |
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| Keywords: | ClO2 Cl2 |
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