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Constructed wetlands for landfill leachate treatment: A review
Ecological Engineering ( IF 3.9 ) Pub Date : 2020-03-01 , DOI: 10.1016/j.ecoleng.2020.105725
Reza Bakhshoodeh , Nadali Alavi , Carolyn Oldham , Rafael M. Santos , Ali Akbar Babaei , Jan Vymazal , Pooya Paydary

Abstract Constructed wetlands (CWs) are engineered systems that are constructed to mimic natural wetlands. These systems simulate the processes that happen in natural wetlands and remove pollutants from wastewater. CWs have been previously used to treat a wide range of waste streams, including landfill leachate, and they have shown relatively good removal efficiencies. Although the literature on using CWs to treat different waste streams has been previously reviewed, there has been no literature review of constructed wetlands for leachate treatment. This critical analysis of available literature on landfill leachate treatment by CWs will help optimize future research in the field. The primary objective of this article is to present a comprehensive overview of the diverse range of practices, applications and research into the use of CW systems for removing contaminants from landfill leachate. This review of 85 papers across 20 countries focusses on the treatment performance of three different types of CWs (free water surface flow; subsurface flow (horizontal and vertical); and hybrid systems), using data from field- and pilot-scale studies, and discusses the impact of design criteria on CW treatment performance. The reported average % removal efficiencies of BOD5, COD, TP, PO4, Ammonia-N, TKN, TN, and TSS, for Horizontal/Vertical/Hybrid/Free water surface CWs were, respectively: 60.1/79.7/72.2/80.6%; 54.5/59.2/56.2/45.4%; 63.5/46.2/−6.4/5.5%; 67.7/62.1/5.2/−1.6%; 67.2/66.7/68.9/70.0%; 45.4/64.2/64.9/10.6%; 72.1/88.2/67.3/81.7%; and 69.3/55.5/51.8/59.5%.

中文翻译:

用于垃圾渗滤液处理的人工湿地:综述

摘要 人工湿地 (CW) 是为模仿自然湿地而建造的工程系统。这些系统模拟自然湿地中发生的过程并去除废水中的污染物。CW 以前曾被用于处理各种废物流,包括垃圾填埋场渗滤液,并且它们已显示出相对较好的去除效率。虽然之前已经审查了使用 CW 处理不同废物流的文献,但没有关于人工湿地处理渗滤液的文献审查。对有关 CW 处理垃圾渗滤液的现有文献的批判性分析将有助于优化该领域的未来研究。本文的主要目的是全面概述各种实践,使用 CW 系统去除垃圾渗滤液中污染物的应用和研究。这篇对 20 个国家/地区的 85 篇论文的审查重点关注三种不同类型 CW(自由水面流;地下流(水平和垂直);以及混合系统)的处理性能,使用来自现场和中试规模研究的数据,以及讨论了设计标准对 CW 处理性能的影响。水平/垂直/混合/自由水面 CW 的 BOD5、COD、TP、PO4、氨氮、TKN、TN 和 TSS 的平均去除效率百分比分别为:60.1/79.7/72.2/80.6%;54.5/59.2/56.2/45.4%;63.5/46.2/−6.4/5.5%;67.7/62.1/5.2/-1.6%;67.2/66.7/68.9/70.0%;45.4/64.2/64.9/10.6%;72.1/88.2/67.3/81.7%;和 69.3/55.5/51.8/59.5%。这篇对 20 个国家/地区的 85 篇论文的审查重点关注三种不同类型 CW(自由水面流;地下流(水平和垂直);以及混合系统)的处理性能,使用来自现场和中试规模研究的数据,以及讨论了设计标准对 CW 处理性能的影响。水平/垂直/混合/自由水面 CW 的 BOD5、COD、TP、PO4、氨氮、TKN、TN 和 TSS 的平均去除效率百分比分别为:60.1/79.7/72.2/80.6%;54.5/59.2/56.2/45.4%;63.5/46.2/−6.4/5.5%;67.7/62.1/5.2/-1.6%;67.2/66.7/68.9/70.0%;45.4/64.2/64.9/10.6%;72.1/88.2/67.3/81.7%;和 69.3/55.5/51.8/59.5%。这篇对 20 个国家/地区的 85 篇论文的审查重点关注三种不同类型 CW(自由水面流;地下流(水平和垂直);以及混合系统)的处理性能,使用来自现场和中试规模研究的数据,以及讨论了设计标准对 CW 处理性能的影响。水平/垂直/混合/自由水面 CW 的 BOD5、COD、TP、PO4、氨氮、TKN、TN 和 TSS 的平均去除效率百分比分别为:60.1/79.7/72.2/80.6%;54.5/59.2/56.2/45.4%;63.5/46.2/−6.4/5.5%;67.7/62.1/5.2/-1.6%;67.2/66.7/68.9/70.0%;45.4/64.2/64.9/10.6%;72.1/88.2/67.3/81.7%;和 69.3/55.5/51.8/59.5%。使用来自现场和中试规模研究的数据,并讨论设计标准对 CW 处理性能的影响。水平/垂直/混合/自由水面 CW 的 BOD5、COD、TP、PO4、氨氮、TKN、TN 和 TSS 的平均去除效率百分比分别为:60.1/79.7/72.2/80.6%;54.5/59.2/56.2/45.4%;63.5/46.2/−6.4/5.5%;67.7/62.1/5.2/-1.6%;67.2/66.7/68.9/70.0%;45.4/64.2/64.9/10.6%;72.1/88.2/67.3/81.7%;和 69.3/55.5/51.8/59.5%。使用来自现场和中试规模研究的数据,并讨论设计标准对 CW 处理性能的影响。水平/垂直/混合/自由水面 CW 的 BOD5、COD、TP、PO4、氨氮、TKN、TN 和 TSS 的平均去除效率百分比分别为:60.1/79.7/72.2/80.6%;54.5/59.2/56.2/45.4%;63.5/46.2/−6.4/5.5%;67.7/62.1/5.2/-1.6%;67.2/66.7/68.9/70.0%;45.4/64.2/64.9/10.6%;72.1/88.2/67.3/81.7%;和 69.3/55.5/51.8/59.5%。2/64.9/10.6%;72.1/88.2/67.3/81.7%;和 69.3/55.5/51.8/59.5%。2/64.9/10.6%;72.1/88.2/67.3/81.7%;和 69.3/55.5/51.8/59.5%。
更新日期:2020-03-01
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