• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Separation and Purification Technology >Hybrid ozonation-ceramic membrane filtration of surface waters: The effect of water characteristics on permeate flux and the removal of DBP precursors, dicloxacillin and ceftazidime
【24h】

Hybrid ozonation-ceramic membrane filtration of surface waters: The effect of water characteristics on permeate flux and the removal of DBP precursors, dicloxacillin and ceftazidime

机译：混合臭氧化-陶瓷膜过滤地表水：水特性对渗透通量的影响以及DBP前体，双氯西林和头孢他啶的去除

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

The removal of the disinfection byproducts (DBPs) precursors, antibiotics dicloxacilline and ceftazidime by hybrid ozonation membrane filtration (HOMF) has been studied in three surface waters (Lake Huron, Lake Lansing and Huron River). This study demonstrates that, compared to membrane filtration, HOMF significantly improves the removal of dicloxacilline, ceftazidime, and disinfection byproduct precursors. At a sufficiently high ozone dosage, the concentrations of the two antibiotics in the permeate were reduced to below the detection limits in the three waters studied. Significant reductions in total organic carbon (TOC), specific UV absorbance (SUVA), and chlorinated disinfection byproducts (DBPs) were also achieved, suggesting that the system could also be effective at controlling the formation of DBPs during chlorination. The fouling behavior of the system was also studied. The degree of fouling was greater in waters with a high TOC and/or alkalinity. Alkalinity adversely affected the removal of the antibiotics and the ability of ozone to control fouling. The effect of alkalinity can be attributed to the scavenging of hydroxyl ("OH) radicals by carbonate species.
机译：在三个地表水（休伦湖，兰辛湖和休伦河）中，已经研究了通过混合臭氧氧化膜过滤（HOMF）去除消毒副产物（DBPs）的前体，抗生素双氯西林和头孢他啶。这项研究表明，与膜过滤相比，HOMF显着改善了双氯环茶碱，头孢他啶和消毒副产物前体的去除。在足够高的臭氧剂量下，渗透液中两种抗生素的浓度降低到低于所研究的三种水的检出限。还实现了总有机碳（TOC），特定紫外线吸收率（SUVA）和氯化消毒副产物（DBP）的显着减少，这表明该系统也可以有效控制氯化过程中DBP的形成。还研究了系统的结垢行为。在高TOC和/或碱度的水中，结垢程度更大。碱度对抗生素的去除和臭氧控制结垢的能力产生不利影响。碱度的影响可归因于碳酸盐物质对羟基（“ OH”）自由基的清除。

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