• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>2011 water quality technology conference amp; exposition: An Oasis of Ideas for a Changing Environment. >Investigating the Presence of HAAs and THMs in Sodium Hypochlorite Feedstocks
【24h】

Investigating the Presence of HAAs and THMs in Sodium Hypochlorite Feedstocks

机译：调查次氯酸钠原料中HAAs和THM的存在

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Chlorate ion and perchlorate ion are examples of disinfection by-products (DBPs) that form inrnsitu in sodium hypochlorite (NaOCl) feedstocks, not in the distribution system. Much less isrnknown about the presence of organic DBPs, such as haloacetic acids (HAAs) andrntrihalomethanes (THMs) in NaOCl feedstocks. In a preliminary survey, the concentrations ofrntrihalomethanes and haloacetic acids were measured in sodium hypochlorite feedstocks collectedrnfrom five different utilities from the Southern and Midwestern United States. Significantrnconcentrations of three of the five regulated haloacetic acids were quantified in four out of fivernof the utilities surveyed. Trihalomethanes were also detected in much lower concentrations.rnThese species may be formed during the production process, during storage, during applicationrnor in a combination of all these times. Based on our limited survey, it appears that NaOClrnfeedstocks may be a significant source of three HAA species in finished water for utilities thatrnuse hypochlorite ion feedstocks.
机译：氯离子和高氯酸根离子是消毒副产品（DBP）的示例，这些副产品在次氯酸钠（NaOCl）原料中而不是在分配系统中原位形成。对于NaOCl原料中有机DBP（例如卤乙酸（HAAs）和三卤甲烷（THM））的存在知之甚少。在初步调查中，对从美国南部和中西部的五家不同公用事业公司收集的次氯酸钠原料中的三卤甲烷和卤乙酸浓度进行了测量。在所调查的公用事业公司中，有五分之四的五种受管制的卤代乙酸中有三种的浓度很高。还可以检测到低得多的三卤甲烷。这些物质可能在生产过程中，存储过程中，应用过程中或所有这些时间的结合中形成。根据我们的有限调查，对于使用次氯酸盐离子原料的公用事业公司来说，NaOCl原料似乎是最终水中三种HAA物种的重要来源。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号