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Removal of Selected Organic Contaminants by Various (Nano) Adsorbent-Ultrafiltration Hybrid Systems

机译:通过各种(纳)吸附剂-超滤混合系统去除选定的有机污染物

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摘要

Organic contaminants, which result from overuse and discharge of dyes, pharmaceutically active compounds, personal care products, and endocrine-disrupting compounds, have been received attention as contemporary water issues. However, conventional water and/or wastewater treatment system cannot sufficiently control for these contaminants for their stability and complexity. In this study, combined novel adsorbent with ultrafiltration (UF) hybrid system (termed ‘adsorbent-UF’) was applied to removal selected organic contaminants. UF with upstream adsorption has positive effects on performance in terms of the removal of selected organic contaminants, separating used adsorbents and reducing foulants. Activated biochar, metal organic frameworks, and Ti3C2TX MXene were used as novel adsorbents for this study. For selected organic contaminants, retention and flux performance were investigated on adsorbent-UF. The adsorbent-UF system was also evaluated under various water quality such as pH, natural organic matter, and background ions for better understanding of behavior in real aquatic environments. Additionally, by comparing the performance of three adsorbent-UF and powdered activated carbon-UF system, feasibility of an adsorbent-UF was investigated as a suitable alternative technology. Consequently, property change of organic contaminants by various water quality are the key to better performance on adsorbent-UF. Also, based on these results, the adsorbent-UF can be a promising advanced water treatment technology and a realistic alternative to conventional systems.
机译:由于染料、药物活性化合物、个人护理产品和内分泌干扰化合物的过度使用和排放而产生的有机污染物,作为当代水问题受到关注。然而,传统的水和/或废水处理系统无法充分控制这些污染物的稳定性和复杂性。在这项研究中,应用新型吸附剂与超滤 (UF) 混合系统(称为“吸附剂-UF”)来去除选定的有机污染物。具有上游吸附功能的超滤在去除选定的有机污染物、分离用过的吸附剂和减少污垢方面对性能有积极影响。本研究使用活化生物炭、金属有机框架和 Ti3C2TX MXene 作为新型吸附剂。对于选定的有机污染物,研究了吸附剂-UF 的保留和助焊剂性能。吸附剂-UF 系统还在各种水质(如 pH 值、天然有机物和背景离子)下进行了评估,以更好地了解真实水生环境中的行为。此外,通过比较三种吸附剂-UF 和粉末活性炭-UF 系统的性能,研究了吸附剂-UF 作为合适替代技术的可行性。因此,不同水质对有机污染物的性质变化是提高吸附剂-UF 性能的关键。此外,基于这些结果,吸附剂-UF 可以成为一种很有前途的先进水处理技术,是传统系统的现实替代品。

著录项

  • 作者

    Kim, Sewoon;

  • 作者单位

    University of South Carolina;

    University of South Carolina;

    University of South Carolina;

  • 授予单位 University of South Carolina;University of South Carolina;University of South Carolina;
  • 学科 Environmental engineering;Climate Change
  • 学位
  • 年度 2021
  • 页码 209
  • 总页数 209
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Environmental engineering; Climate Change;

    机译:环境工程;气候变化;
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