污水再生与循环利用的生态化过程  

ECOLOGICAL PROCESS OF WASTEWATER REGENERATION AND RECYCLING

作　　者：谢琤琤 许柯 XIE Chengcheng;XU Ke(CSD New Concept Environmental Development Yixing Co.,Ltd.,Yixing 214200,China;State Key Laboratory of Pollution Control and Resource Reuse,School of the Environment,Nanjing University,Nanjing 210023,China)

机构地区：[1]中持新概念环境发展宜兴有限公司,江苏宜兴214200 [2]南京大学环境学院污染控制与资源再利用国家重点实验室,南京210023

出　　处：《环境工程》2024年第1期24-28,共5页Environmental Engineering

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。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.

关 键 词：污水再生与循环利用 生态处理 生态储存 生态风险 生态恢复 

分 类 号：X703[环境科学与工程—环境工程]