Establishment of the assessment system of Chinese decentralized wastewater treatment facilities and equipment
QI Rong1,, ZHOU Wenli2, GUO Xuesong3, CHEN Meixue3, YAN Yan4, LIU Junxin3,,, YANG Min1, LI Peng5 1.State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China 2.Department of Village Construction, Ministry of Housing and Urban-Rural Development of the People’s Republic of China, Beijing 100835, China 3.Laboratory of Water Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China 4.State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China 5.China Water Environment Group Limited, Beijing 101199, China
Abstract:Decentralized wastewater treatment facilities and equipment are at a critical stage of the transition to formalization and sustainability. How to build an entire evaluation system for these decentralized wastewater treatment facilities and equipment with Chinese essential characteristics, and genuinely provide the treatment efficiency after scientific evaluation, to indeed increase the application rate of applicable technologies and equipment with long-term stable operation capability, is a critical issue that needs to be urgently addressed in the current decentralized wastewater treatment. A systematic analysis of the performance evaluation systems of decentralized wastewater treatment facilities and equipment in developed countries such as Europe, the United States, and Japan found that the establishment of standardized evaluation processes and diversified performance evaluation content based on relevant overarching laws in these countries is an essential guarantee for the evaluation system to carry out function. The Chinese evaluation system should focus on establishing independent third-party assessment body, ensuring the impartiality of the certification process and the fairness of the evaluation results. The certification content should emphasize the diversified performance certification to guide the future development trend of ‘adaptation to local conditions’ for decentralized wastewater treatment. At the same time, the evaluation on the removal efficiencies of various types of pollutants under standard influent and changing conditions was advocated, which can reflect the operational convenience of facility operation and maintenance, and provide accurate pollutant reduction capacity per unit in possible future process combinations. The establishment of Chinese decentralized wastewater treatment facilities and equipment evaluation system will provide a unified and objective basis for the comparison of various complicated technologies, further regulate the market selection and operation of sewage treatment technologies, facilities and equipment, effectively promote the practical application of low-cost, low-energy, easy-to-maintain and high-efficiency sewage treatment technologies, and lay a solid technical evaluation basis for the goal of “gradually pushing the rural domestic sewage treatment forward” in the improvement of the rural human environment. Key words:rural wastewater treatment facilities/ decentralized wastewater/ facilities assessment system/ independent third-party assessment body/ international experience.
表1发达国家与地区分散型污水处理评估体系所依据的上位法律 Table1.Basic laws of decentralized wastewater treatment facilities assessment system in developed countries and regions.
下载: 导出CSV 表2发达国家与地区分散型污水处理评估标准及主要内容 Table2.Contents of decentralized wastewater treatment facilities assessment systems in developed countries and regions
The European Parliament and the Council. Directive 2000/60/EC of the European Parliament and of the Council of 23 October 2000 establishing a framework for Community action in the field of water policy[EB/OL]. [2020-05-04]. http://data.europa.eu/eli/dir/2000/60/oj.
The European Parliament and the Council. Regulation (EU) No 305/2011 of the European Parliament and of the Council of 9 March 2011 laying down harmonised conditions for the marketing of construction products and repealing Council Directive 89/106/EEC Text with EEA relevance [EB/OL]. [2020-05-04]. http://data.europa.eu/eli/reg/2011/305/oj.
[11]
U. S. Environmental Protection Agency. Onsite Wastewater Treatment Systems Manual-Revised February 2002. EPA/625/R-00/008 (NTIS PB02-108560) [EB/OL]. [2020-01-04]. http://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=30004GXI.txt.
1.State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China 2.Department of Village Construction, Ministry of Housing and Urban-Rural Development of the People’s Republic of China, Beijing 100835, China 3.Laboratory of Water Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China 4.State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China 5.China Water Environment Group Limited, Beijing 101199, China Received Date: 2020-01-15 Accepted Date: 2020-06-14 Available Online: 2020-09-05 Keywords:rural wastewater treatment facilities/ decentralized wastewater/ facilities assessment system/ independent third-party assessment body/ international experience Abstract:Decentralized wastewater treatment facilities and equipment are at a critical stage of the transition to formalization and sustainability. How to build an entire evaluation system for these decentralized wastewater treatment facilities and equipment with Chinese essential characteristics, and genuinely provide the treatment efficiency after scientific evaluation, to indeed increase the application rate of applicable technologies and equipment with long-term stable operation capability, is a critical issue that needs to be urgently addressed in the current decentralized wastewater treatment. A systematic analysis of the performance evaluation systems of decentralized wastewater treatment facilities and equipment in developed countries such as Europe, the United States, and Japan found that the establishment of standardized evaluation processes and diversified performance evaluation content based on relevant overarching laws in these countries is an essential guarantee for the evaluation system to carry out function. The Chinese evaluation system should focus on establishing independent third-party assessment body, ensuring the impartiality of the certification process and the fairness of the evaluation results. The certification content should emphasize the diversified performance certification to guide the future development trend of ‘adaptation to local conditions’ for decentralized wastewater treatment. At the same time, the evaluation on the removal efficiencies of various types of pollutants under standard influent and changing conditions was advocated, which can reflect the operational convenience of facility operation and maintenance, and provide accurate pollutant reduction capacity per unit in possible future process combinations. The establishment of Chinese decentralized wastewater treatment facilities and equipment evaluation system will provide a unified and objective basis for the comparison of various complicated technologies, further regulate the market selection and operation of sewage treatment technologies, facilities and equipment, effectively promote the practical application of low-cost, low-energy, easy-to-maintain and high-efficiency sewage treatment technologies, and lay a solid technical evaluation basis for the goal of “gradually pushing the rural domestic sewage treatment forward” in the improvement of the rural human environment.