| 预氯化对PDMDAAC形成消毒副产物NDMA的影响 |
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| 引用本文： | 蒋绍阶, 黄雪, 袁秋红, 谈思颖, 赖阳洲, 向平. 预氯化对PDMDAAC形成消毒副产物NDMA的影响[J]. 环境工程学报, 2017, 11(8): 4621-4626. doi: 10.12030/j.cjee.201606091 |
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| 作者姓名： | 蒋绍阶 黄雪 袁秋红 谈思颖 赖阳洲 向平 |
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| 作者单位： | 1.重庆大学城市建设与环境工程学院, 重庆 400045; 2.重庆市清泽水质检测有限公司, 重庆 401331 |
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| 摘 要： | 为了解水处理参数对聚二甲基二烯丙基氯化铵（PDMDAAC）的亚硝基二甲胺生成潜能（NDMAFP）的影响，研究了预氯化和氯胺形式对PDMDAAC的NDMAFP的影响。通过分析NDMAFP和剩余二甲胺（DMA）的浓度发现预氯化对PDMDAAC的NDMAFP有一定的影响，预氯化时间和预氯化剂量的影响不显著，预氯化时的pH值影响显著。溶液中形成的少量二氯胺（NHCl2）和PDMDAAC降解释放的DMA是亚硝基二甲胺（NDMA）形成的关键因素。溶液中溴离子（Br-）和腐殖酸的存在增大了PDMDAAC的NDMAFP。
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| 关 键 词： | PDMDAAC 消毒副产物 NDMA 预氯化 |
| 收稿时间： | 2016-10-10 |
Effect of pre-chlorination on NDMA formation from PDMDAAC |
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| JIANG Shaojie, HUANG Xue, YUAN Qiuhong, TAN Siying, LAI Yangzhou, XIANG Ping. Effect of pre-chlorination on NDMA formation from PDMDAAC[J]. Chinese Journal of Environmental Engineering, 2017, 11(8): 4621-4626. doi: 10.12030/j.cjee.201606091 |
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| Authors: | JIANG Shaojie HUANG Xue YUAN Qiuhong TAN Siying LAI Yangzhou XIANG Ping |
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| Affiliation: | 1.School of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 400045, China; 2.Chongqing Qing Ze Water Quality Detection Co. Ltd., Chongqing 401331, China |
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| Abstract: | To understand how water treatment parameters affect the formation of NDMA from PDMDAAC, the effects of pre-chlorination and the forms of chloramine on NDMA formation from PDMDAAC were investigated. The pre-chlorination dose and contact time had no significant effect on NDMA formation potential (NDMAFP). Pre-chlorination pH had significant influence on PDMDAAC's NDMAFP. The results suggest that the partial formation of dichloramine (NHCl2) and DMA release by PDMDAAC degradation were the critical factors affecting NDMA formation. The existence of Br- and humic acid increased NDMA formation from PDMDAAC. |
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| Keywords: | PDMDAAC disinfection by-products NDMA pre-chlorination |
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