| 加氯消毒对含盐二级出水及管道系统的影响 |
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| 引用本文： | 尹军,翟黎明.加氯消毒对含盐二级出水及管道系统的影响[J].中国给水排水,2011,27(11). |
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| 作者姓名： | 尹军 翟黎明 |
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| 作者单位： | 1. 哈尔滨工业大学,市政环境工程学院,黑龙江,哈尔滨,150090;吉林建筑工程学院市政与环境工程学院,吉林,长春,130021
2. 哈尔滨工业大学,市政环境工程学院,黑龙江,哈尔滨,150090 |
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| 摘 要： | 铸铁管广泛用于不同水质的输配,但是现存管道的设计并未考虑用于输送加氯消毒后的二级出水.通过现场试验,在一个长为68 m、内径为67 mm的模拟管路内,研究了加氯后管内壁生物膜的生长和脱落情况、消毒副产物THMs和HAA<,5>的生成潜力以及对铸铁管的腐蚀程度.结果表明,管内壁生物膜的生长主要受控于水中有机物的含量;当投氯量增加到5.0 mg/L时,生物膜的生长和脱落不受影响;在投氯量相同的情况下,对污泥龄为5～12 d的二级出水进行加氯消毒,不会产生过多的消毒副产物,其中THMs和HAA<,5>的最大生成量分别为40和10μg/L;加氯消毒对输水铸铁管的腐蚀主要受控于DO值而不是水中余氯的含量;腐蚀速率随氧化剂含量的增加而提高,但随余氯提高的速率要比随DO提高的速率小得多.
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| 关 键 词： | 二级出水 氯消毒 铸铁管 |
Effect of Chlorination on Saline Secondary Effluent and Pipe System |
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| YIN Jun,ZHAI Li-ming.Effect of Chlorination on Saline Secondary Effluent and Pipe System[J].China Water & Wastewater,2011,27(11). |
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| Authors: | YIN Jun ZHAI Li-ming |
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| Affiliation: | YIN Jun1,2,ZHAI Li-ming1(1.School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China,2.School of Municipal and Environmental Engineering,Jilin Institute of Architecture and Civil Engineering,Changchun 130021,China) |
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| Abstract: | Ductile iron pipes are widely used for transmission and distribution of water with different qualities.The transmission of chlorinated secondary effluent is not considered in the design the existing pipe system.Based on field experiment,a simulation study was conducted with a pipe of 68 m length and 67 mm ID to assess the growth and detachment of biofilm,formation potential of disinfection by-products(DBPs) and corrosion effect on ductile iron pipe when the effluent is chlorinated.The results indicate that ... |
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| Keywords: | secondary effluent chlorination ductile iron pipe |
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