再生水水质稳定性评价指标与体系  

Evaluation Parameters and System for Reclaimed Water Quality Stability

作　　者：张馨怡 魏东斌[1,2] 杜宇国 ZHANG Xin-yi;WEI Dong-bin;DU Yu-guo(State Key Laboratory of Environmental Chemistry and Ecotoxicology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院生态环境研究中心环境化学与生态毒理学国家重点实验室,北京100085 [2]中国科学院大学,北京100049

出　　处：《环境科学》2022年第2期586-596,共11页Environmental Science

基　　金：国家重点研发计划项目(2018YFC0406300);宁夏回族自治区重点研发计划项目(2021BEG02006)。

摘　　要：污水再生利用是缓解水资源短缺的有效手段,水质稳定性是再生水等水资源安全利用的前提,稳定的水质能有效防止腐蚀和结垢的频繁发生,不仅有利于改善水质的感官性状,还能减少二次污染和能源消耗,为推进污水资源化利用,对再生水的水质稳定性进行评价和管理尤为重要.在文献资料调研的基础上,分别总结了化学稳定性和生物稳定性评价指标的特点及适用范围,构建了完整的再生水水质稳定性评价指标和评价体系,主要分为确定再生水水质稳定性的影响因素,基于水质特征、管网和设备材料等遴选再生水水质稳定性评价指标,评价水质稳定性并复核评价结果4步流程,最后对水质稳定性评价存在的问题和面临的挑战进行了梳理,旨在为科学合理地评价水质稳定性和保障再生水的长期安全利用提供理论依据.Wastewater reclamation and reuse are an effective measure to alleviate water shortages. Water quality stability is the premise for safe utilization of reclaimed water and other water resources. Stable water quality can prevent the frequent occurrence of corrosion and scaling, which not only improves the sensory properties of water quality but also reduces secondary pollution and energy consumption. In order to promote the utilization of wastewater resources, it is important to evaluate and manage reclaimed water quality stability. Based on substantial literature and research, the characteristics and scopes of evaluation parameters for both chemical stability and biological stability were summarized, and a set of evaluation parameters and a system for reclaimed water quality stability were comprehensively established in this study. The evaluation procedure was mainly divided into four steps including:(1) determine the influencing factors of reclaimed water quality stability;(2) select corresponding evaluation parameters based on reclaimed water quality characteristics, the materials of pipelines, and equipment;(3) evaluate the reclaimed water quality stability;and(4) examine whether the evaluation results were appropriate. Finally, the potential challenges for the stability evaluation of water quality were analyzed. This study is expected to provide a theoretical foundation for the scientific evaluation of water quality stability and safe utilization of reclaimed water.

关 键 词：再生水 化学稳定性 生物稳定性 评价指标 评价体系 

分 类 号：X703[环境科学与工程—环境工程]