首页> 外文期刊>Journal of Environmental Science and Health >Influence of coexisting contaminants on the sorption of 17β-estradiol by marine sediments
【24h】

Influence of coexisting contaminants on the sorption of 17β-estradiol by marine sediments

机译:共存污染物对海洋沉积物吸附17β-雌二醇的影响

获取原文
获取原文并翻译 | 示例
           

摘要

The adsorption behavior of 17β-estradiol (E2) on marine sediments treated by different methods was investigated in the presence of bisphenol A (BPA), dibutyl phthalate (DBP), cationic surfactant cetyltrimethylammonium bromide (CTAB), nonionic surfactant polyoxyethylene (80) sorbitan esters (Tween 80) and anionic surfactant sodium dodecylbenzene sulfonate (SDBS). Four sets of experiments were conducted to determine the adsorption isotherms of E2 with coexisting contaminants, to explore the effects of concentrations and types of coexisting contaminants on the E2 adsorption capacity, and to examine the influence of pH on E2 adsorption on the sediments. The adsorption behavior of E2 to marine sediments without the addition of surfactant mainly related to organic carbon content of sediments and fitted well with the Freundlich model. The presence of CTAB or Tween 80 enhanced the adsorption capacity of E2 of marine sediments. In contrast, the presence of BPA, DBP and SDBS inhibited the adsorption capacity of E2. The pH value of the solution could influence the adsorption behavior of E2 of the marine sediments. A decline in pH values was beneficial to the adsorption of E2 with the addition of surfactants.
机译:在双酚A(BPA),邻苯二甲酸二丁酯(DBP),阳离子表面活性剂十六烷基三甲基溴化铵(CTAB),非离子表面活性剂聚氧乙烯(80)山梨聚糖的存在下,研究了17β-雌二醇(E2)在通过不同方法处理的海洋沉积物上的吸附行为。酯(吐温80)和阴离子表面活性剂十二烷基苯磺酸钠(SDBS)。进行了四组实验,以确定E2与共存污染物的吸附等温线,探讨共存污染物的浓度和类型对E2吸附容量的影响,并研究pH对E2对沉积物吸附的影响。 E2在不添加表面活性剂的情况下对海洋沉积物的吸附行为主要与沉积物的有机碳含量有关,与Freundlich模型拟合得很好。 CTAB或Tween 80的存在增强了E2对海洋沉积物的吸附能力。相反,BPA,DBP和SDBS的存在抑制了E2的吸附能力。溶液的pH值可能影响海洋沉积物对E2的吸附行为。 pH值的下降有利于通过添加表面活性剂来吸附E2。

著录项

  • 来源
    《Journal of Environmental Science and Health》 |2010年第14期|p.1815-1822|共8页
  • 作者

    QUAN LI; GUI-PENG YANG;

  • 作者单位

    Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, China;

    Key Laboratory of Marine Chemistry Theory and Technology, Ocean University of China, Qingdao, 266100, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);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

    17β-estradiol; coexisting contaminants; marine sediments; adsorption.;

    机译:17β-雌二醇;共存的污染物;海洋沉积物;吸附。;

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