城镇污水处理厂碳排放核算方法及特征

Estimation Methodology and Characteristics of Carbon Emissions in Urban WWTPs

污水处理行业因其运行过程中消耗大量能源、排放温室气体的特征,在我国全力推进碳中和、碳减排的进程中引起了行业广泛关注。而如何系统全面量化城镇污水处理厂碳排放水平,是推进城镇污水处理厂优化运行管理、制定减排策略的重要前提。结合文献调研,以城镇污水处理厂运行阶段为研究对象,总结污水处理碳排放来源及特征的研究现状,分析直接碳排放、间接碳排放和负碳排放等不同来源碳核算方法的原理及特点,探究其适用场景及局限性,并提出污水处理碳排放核算方法研究和应用的发展趋势分析与建议,为发展污水处理领域碳排放评估新技术提供借鉴和参考。

Urban wastewater treatment has attracted extensive attention in China′s efforts to promote carbon neutrality for the characteristics of consuming a large amount of energy and emitting greenhouse gases.How to systematically and comprehensively quantify the carbon emissions level of urban wastewater treatment plants(WWTPs)is an important prerequisite for optimizing operation and management and reducing carbon emission of urban WWTPs.Combined with literature research,taking the operation stage of urban WWTP as the research object,it summarizes the research status of the sources and characteristics of carbon emissions from wastewater treatment,analyzes the principles and characteristics of carbon accounting methods from different sources such as direct carbon emissions and indirect carbon emissions,and explores their application scenarios and limitations.In order to provide reference for the development of new technologies for carbon emission assessment in wastewater treatment,the trend analysis and suggestions for the research and application of carbon emissions estimating methods in wastewater treatment are also proposed.