Water treatment and reclamation by implementing electrochemical systems with constructed wetlands

IF 14 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Science and Ecotechnology Pub Date : 2023-10-01 DOI:10.1016/j.ese.2023.100265

Suanny Mosquera-Romero , Eleftheria Ntagia , Diederik P.L. Rousseau , Abraham Esteve-Núñez , Antonin Prévoteau

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引用次数: 5

Abstract

Seasonal or permanent water scarcity in off-grid communities can be alleviated by recycling water in decentralized wastewater treatment systems. Nature-based solutions, such as constructed wetlands (CWs), have become popular solutions for sanitation in remote locations. Although typical CWs can efficiently remove solids and organics to meet water reuse standards, polishing remains necessary for other parameters, such as pathogens, nutrients, and recalcitrant pollutants. Different CW designs and CWs coupled with electrochemical technologies have been proposed to improve treatment efficiency. Electrochemical systems (ECs) have been either implemented within the CW bed (ECin-CW) or as a stage in a sequential treatment (CW + EC). A large body of literature has focused on ECin-CW, and multiple scaled-up systems have recently been successfully implemented, primarily to remove recalcitrant organics. Conversely, only a few reports have explored the opportunity to polish CW effluents in a downstream electrochemical module for the electro-oxidation of micropollutants or electro-disinfection of pathogens to meet more stringent water reuse standards. This paper aims to critically review the opportunities, challenges, and future research directions of the different couplings of CW with EC as a decentralized technology for water treatment and recovery.

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在人工湿地中实施电化学系统的水处理和回收

离网社区的季节性或永久性缺水可以通过分散的废水处理系统循环用水来缓解。基于自然的解决方案，如人工湿地(CWs)，已成为偏远地区卫生设施的流行解决方案。虽然典型的化学武器可以有效地去除固体和有机物，以满足水的回用标准，但抛光仍然需要处理其他参数，如病原体、营养物质和顽固性污染物。为了提高处理效率，人们提出了不同的连续水设计和化学水与电化学技术的结合。电化学系统(ECs)要么在连续流化床(ECin-CW)内实施，要么作为顺序处理(CW + EC)的一个阶段实施。大量的文献都集中在ECin-CW上，并且最近已经成功地实施了多个规模放大的系统，主要用于去除顽固性有机物。相反，只有少数报告探讨了在下游电化学模块中对连续化学废水进行抛光的机会，以便对微污染物进行电氧化或对病原体进行电消毒，以满足更严格的水再利用标准。本文旨在批判性地回顾CW与EC作为分散式水处理和回收技术的不同耦合的机遇、挑战和未来的研究方向。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Environmental Science and Ecotechnology Multiple-

CiteScore

20.40

自引率

6.30%

发文量

审稿时长

18 days

期刊介绍： Environmental Science & Ecotechnology (ESE) is an international, open-access journal publishing original research in environmental science, engineering, ecotechnology, and related fields. Authors publishing in ESE can immediately, permanently, and freely share their work. They have license options and retain copyright. Published by Elsevier, ESE is co-organized by the Chinese Society for Environmental Sciences, Harbin Institute of Technology, and the Chinese Research Academy of Environmental Sciences, under the supervision of the China Association for Science and Technology.