Analysis of Greenhouse Gas Emission Factors and Influencing Factors in Wastewater Treatment Processes

With the proposal of carbon neutrality goals, the high energy consumption and significant greenhouse gas emissions caused by traditional wastewater treatment processes have attracted widespread attention. Research on carbon emissions during wastewater treatment has become a hot topic. In this context, wastewater treatment plants need to achieve not only water resource sustainability but also carbon reduction. Precisely monitoring and evaluating the carbon emission levels of urban drainage systems and wastewater treatment plants, and scientifically proposing wastewater treatment carbon reduction paths and carbon neutrality models, are key breakthrough points for urban water pollution control to achieve the “carbon peak, carbon neutrality” goals, and are also the cutting-edge and focus of current environmental science and technology. This paper takes urban drainage systems and wastewater treatment plants as the main objects, summarizes the current research status of greenhouse gas emission monitoring and quantitative assessment, discusses and analyzes the main sources, emission status, and influencing factors of greenhouse gases in wastewater treatment plants.