ECOLOGICAL PROCESS OF WASTEWATER REGENERATION AND RECYCLING
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摘要: 污水再生和循环利用是开发非常规水资源、减少污染物排放的重要途径。然而,目前我国污水的再生和利用率均较低,再生过程中能耗、药耗较高,绿色循环系统尚未形成。为此,从资源、环境、生态及安全的角度出发,研究和总结了污水再生的生态方法,提出了再生水生态处理和生态化处理的关系和内涵;分析了再生水生态储存的方式和要点,提出了再生水资源化储存的水质条件和环境影响;讨论了水生态系统及敏感生物群落对再生水排放的生态响应和生态风险,提出了污染物共暴露风险阻断的主要路径;阐释了再生水作为城市地表水体生态需水补给的关键控制因素,提出了再生水与水体生态融合、促进水体生态恢复的实践策略。Abstract: Wastewater regeneration and recycling are essential means for developing unconventional water resources and reducing environmental pollutant discharge. However, in China, the regeneration and reuse efficiencies of wastewater remain low, and the energy and resource consumption for wastewater regeneration are relatively high, and the green circulation system has not yet been formed. This article, therefore, investigates and summarizes the ecological methods for wastewater regeneration from the perspectives of resources, environment, ecology, and safety. It outlines the relationship and implications of ecological treatment and ecologicalization treatment of regenerated water, analyzes the methods and key points for the ecological storage of regenerated water, and defines water quality conditions and environmental impacts for regenerating water resources. It discusses the ecological responses and risks of sensitive biological communities to regenerated water discharge and presents the main pathways to block pollutants' co-exposure risks. This article also elucidates the critical control factors for regenerated water as a key source of ecological water supply in urban surface water bodies, and proposes practical strategies for integrating regenerated water with aquatic ecosystems to promote ecological restoration.
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[1] GRANT S B,SAPHORES J D,FELDMAN D L,et al.Taking the “waste” out of “wastewater” for human water security and ecosystem sustainability[J].Science,2012,337(6095):681-686. [2] SEDLAK D.Water 4.0:The Past,Present,and Future of the World’s Most Vital Resource[M].Yale University Press,2014. [3] ACZEL M.Water,now and then[J].Science,2023,380(6652):1328-1328. [4] PALMER M A,LIU J,MATTHEWS J H,et al.Manage water in a green way[J].Science,2015,349(6248):584-585. [5] VöRöSMARTY C J,HOEKSTRA A Y,BUNN S E,et al.Fresh water goes global[J].Science,2015,349(6247):478-479. [6] FEKETE B M,ROBARTS R D,KUMAGAI M,et al.Time for in situ renaissance[J].Science,2015,349(6249):685-686. [7] TORTAJADA C,VAN RENSBUR P.Drink more recycled wastewater[J].Nature,2020,577(7788):26-28. [8] CUI J,YU Z,MI M,et al.Occurrence of halogenated organic pollutants in hadal trenches of the Western Pacific Ocean[J].Environmental Science and Technology,2020,54(24):15821-15828. [9] EVICH M G,DAVIS M J B,MCCORD J P,et al.Per- and polyfluoroalkyl substances in the environment[J].Science,2022,375(6580):9065. [10] JERCICH S A,California’s 1995 Water Bank Program:purchasing water supply options[J].Journal of Water Resources Planning and Management-ASCE,1997,123(1):59-65. [11] MIGUEZ-MACHO G,FAN Y.Spatiotemporal origin of soil water taken up by vegetation[J].Nature,2021,598(7882):624-628. [12] VAN VLIET M T H,THORSLUND J,STROKAL M,et al.Global river water quality under climate change and hydroclimatic extremes[J].Nature Reviews Earth & Environment,2023,4(420):687-702. [13] EGGEN R I L,HOLLENDER J,JOSS A,et al.Reducing the discharge of micropollutants in the aquatic environment:the benefits of upgrading wastewater treatment plants[J].Environmental Science & Technology,2014,48(14):7683-7689. [14] FLUET-CHOUINARD E,STOCKER B D,ZHANG Z,et al.Extensive global wetland loss over the past three centuries[J].Nature,2023,614(7947):281-286. [15] AN S,SONG Y,FU Q,et al.Reclaimed water use improved polluted water’s self-purification capacity:evidenced by water quality factors and bacterial community structure[J].Journal of Cleaner Production,2023,386:135736. [16] WAN Q Q,CAO R H,WEN G,et al.Sequential use of UV-LEDs irradiation and chlorine to disinfect waterborne fungal spores:efficiency,mechanism and photoreactivation[J].Journal of Hazardous Materials,2022,423:127102. [17] FISCHER S,FISCHER M,FISCHER K,et al,Wirkungsorientierte Gewässerüberwachung:biomonitoring mit Forellen[M].Studie im Auftrag des Bundesamtes für Umwelt (BAFU),Abschlussbericht,2017.
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