首页> 外文期刊>Ecotoxicology and Environmental Safety >Removal characteristic of surfactants in typical industrial and domestic wastewater treatment plants in Northeast China
【24h】

Removal characteristic of surfactants in typical industrial and domestic wastewater treatment plants in Northeast China

机译:东北地区典型工业和生活污水处理厂表面活性剂的去除特性

获取原文
获取原文并翻译 | 示例
       

摘要

Surfactants are widely used in household and industrial products for cleaning and/or solubilization in our daily life. Therefore, they are finally discharged into wastewater treatment plants (WWTPs), which may be the major point pollution source for environment if they were not completely removed during wastewater treatment. In this study, two typical industrial and domestic WWTPs with different wastewater treatment technologies were considered for the topic. Totally, two types of surfactants were analyzed in 24 h influent and each processing unit effluent. Four linear alkylbenzene sulfonates (LASs) with the alkyl chain from C10 to C13, and two benzalkonium chlorides (BACs) with the alkyl chain of C12 and C14 were selected as target compounds. The total concentrations of LASs in influent varied from 19.2 to 1889 mu g/L and LAS-C11 and LAS-C12 were the predominant compounds with the concentration from 6.01 to 641 mu g/L and 8.02-674 mu g/L, respectively. The total concentrations of BACs were much lower than those of LASs, with the concentration ranging from 0.00935 to 1.85 mu g/L. Significant positive correlations were observed between concentrations of LASs and BACs in influent, indicating their same and/or similar sources. Compared with the concentration of influent, the concentration of effluent was much lower, indicating the high removal efficiency by the two wastewater treatment processes. Biological treatment unit and cyclic activated sludge system were the main treatment units for the removing of surfactants, which suggested that these two types of surfactants can be easily degraded under aerobic condition. Seasonal variation indicated that the removal efficiencies of surfactants in autumn were a little higher than those in winter. The results of this study provided new insights into the environmental fate of surfactants in wastewater treatment system.
机译:表面活性剂被广泛用于家庭和工业产品中,以在我们的日常生活中进行清洁和/或溶解。因此,它们最终被排放到废水处理厂(WWTP)中,如果在废水处理过程中未将其彻底清除,它们可能是环境的主要污染源。在这项研究中,考虑了具有不同废水处理技术的两种典型的工业和生活污水处理厂。总共在24 h进水和每种处理单元出水中分析了两种类型的表面活性剂。选择四个烷基链为C10至C13的直链烷基苯磺酸盐(LAS)和两个烷基链为C12和C14的苯扎氯铵(BAC)作为目标化合物。进水中LAS的总浓度在19.2至1889μg / L之间,而LAS-C11和LAS-C12是主要化合物,浓度分别为6.01至641μg / L和8.02-674μg/ L。 BAC的总浓度远低于LAS,浓度范围为0.00935至1.85μg / L。观察到进水中LAS和BAC的浓度之间存在显着的正相关,表明它们的来源相同和/或相似。与进水浓度相比,出水浓度要低得多,表明这两种废水处理工艺的去除效率很高。生物处理单元和循环活性污泥系统是去除表面活性剂的主要处理单元,这表明这两种类型的表面活性剂在好氧条件下均易于降解。季节变化表明,秋季表面活性剂的去除效率略高于冬季。这项研究的结果为废水处理系统中表面活性剂的环境命运提供了新的见解。

著录项

  • 来源
    《Ecotoxicology and Environmental Safety》 |2018年第5期|84-90|共7页
  • 作者单位

    Harbin Inst Technol, IJRC PTS, State Key Lab Urban Water Resource & Environm, 73 Huanghe Rd, Harbin 150090, Heilongjiang, Peoples R China;

    Harbin Inst Technol, IJRC PTS, State Key Lab Urban Water Resource & Environm, 73 Huanghe Rd, Harbin 150090, Heilongjiang, Peoples R China;

    Heilongjiang Univ, Harbin 150080, Heilongjiang, Peoples R China;

    Harbin Inst Technol, IJRC PTS, State Key Lab Urban Water Resource & Environm, 73 Huanghe Rd, Harbin 150090, Heilongjiang, Peoples R China;

    Harbin Inst Technol, IJRC PTS, State Key Lab Urban Water Resource & Environm, 73 Huanghe Rd, Harbin 150090, Heilongjiang, Peoples R China;

    Harbin Inst Technol, IJRC PTS, State Key Lab Urban Water Resource & Environm, 73 Huanghe Rd, Harbin 150090, Heilongjiang, Peoples R China;

    Harbin Inst Technol, IJRC PTS, State Key Lab Urban Water Resource & Environm, 73 Huanghe Rd, Harbin 150090, Heilongjiang, Peoples R China;

    Harbin Inst Technol, IJRC PTS, State Key Lab Urban Water Resource & Environm, 73 Huanghe Rd, Harbin 150090, Heilongjiang, Peoples R China;

    Harbin Inst Technol, IJRC PTS, State Key Lab Urban Water Resource & Environm, 73 Huanghe Rd, Harbin 150090, Heilongjiang, Peoples R China;

    Harbin Inst Technol, IJRC PTS, State Key Lab Urban Water Resource & Environm, 73 Huanghe Rd, Harbin 150090, Heilongjiang, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Surfactants; Occurrence; Daily variation; Removal efficiency; Seasonal variation; WWTPs;

    机译:表面活性剂发生每日变化去除效率季节变化污水处理厂;
  • 入库时间 2022-08-17 13:22:37

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