ZHANGHe-yao,LIUYong-ze,ZHANGTao.High-risk Organic Pollutants of Reverse Osmosis Concentrate from Municipal Sewage Reclamation Treatment: Characteristics and Control Processes[J].China Water & Wastewater,2025,41(10):11-18.
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High-risk Organic Pollutants of Reverse Osmosis Concentrate from Municipal Sewage Reclamation Treatment: Characteristics and Control Processes

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第41卷 Number: 第10期 Page: 11-18 Column: Date of publication: 2025-05-17
Author(s):
ZHANG　He-yao1; 2;  LIU　Yong-ze1; 2;  ZHANG　Tao3
（1. Beijing Key Lab for Source Control Technology of Water Pollution， College of Environmental Science and Engineering， Beijing Forestry University， Beijing 100083， China； 2. Engineering Research Center for Water Pollution Source Control & Eco-remediation， College of Environmental Science and Engineering， Beijing Forestry University， Beijing 100083， China； 3. Research Center for Eco-Environmental Sciences， Chinese Academy of Sciences， Beijing 100085， China）
Keywords:
reverse osmosis concentrate;  high-risk organic pollutants;  advanced oxidation process;  reduction process;  combined oxidation-reduction process
Abstract:
With the increasing application of reverse osmosis processes for producing high-quality reclaimed water, the volume of reverse osmosis concentrate (ROC) is growing. The ROC contains a large number of high-risk organic pollutants that are difficult to degrade and have significant ecological toxicity. Therefore, there is an urgent need to develop green and efficient treatment technologies for ROC. This study systematically reviews and analyzes the characteristics of high-risk organic pollutants in ROC from municipal sewage reclamation treatment and evaluates the effectiveness of existing treatment technologies. These pollutants can be categorized into three main groups: refractory pollutants enriched in the secondary effluent of wastewater treatment plants， disinfection byproducts generated during secondary effluent disinfection， and organic agents added during system operation. Conventional treatment methods (e.g., physical and biological processes) have limited removal efficiencies for these high-risk organic pollutants. Advanced oxidation processes can efficiently remove most organic pollutants but often produce toxic intermediate products and have limited efficacy against halogenated high-risk organic pollutants. In contrast, reduction processes can efficiently dehalogenate for halogenated high-risk organics and reduce their ecotoxicity. Based on the characteristics of ROC, this study proposes a combined reduction-oxidation process for the control and detoxification of high-risk organic pollution. This integrated approach aims to provide a reference for risk management of reverse osmosis concentrate from municipal sewage reclamation treatment.
Last Update: 2025-05-17