净水技术2025，Vol.44Issue(4)：108-118,165,12.DOI:10.15890/j.cnki.jsjs.2025.04.013
福建某污水厂碳排放核算及低碳运行分析
Carbon Emission Accounting and Low-Carbon Operation Analysis of a WWTP in Fujian
摘要
Abstract
[Objective]Against the backdrop of ecological civilization construction in China,the wastewater treatment industry is not only a crucial link in the battle against pollution prevention and control but also a significant area for greenhouse gas emission reduction.Therefore,clarifying the carbon emission status of wastewater treatment plants(WWTPs)and implementing low-carbon retrofits are vital for addressing climate change and promoting sustainable development.[Methods]This study aimed to explore the pathways for low-carbon retrofits of WWTPs through scientific method and practical cases,providing experience and insights for future energy conservation and emission reduction efforts in wastewater treatment.Based on the existing domestic carbon accounting theoretical framework,a representative WWTP in Fujian Province was selected as the research object.Data such as daily treatment capacity,influent and effluent indices,sludge production,electricity consumption,and reagent consumption from the WWTP in Fujian were utilized to conduct carbon emission accounting for both direct and indirect carbon emissions.By analyzing the carbon emission accounting result of the WWTP's wastewater treatment process,and considering the WWTP's geographical location and surrounding resources,four carbon reduction measures were proposed:Replacing low-carbon carbon source agents,optimizing operational controls e.g.areation control,enhancing frenquency conversion control,and transforming photovoltaic energy utilization.After a series of low-carbon retrofits and eight months of stable operation,carbon emission accounting was conducted again,revealing a significant reduction in the carbon emission intensity of the WWTP.[Results]Specifically,its carbon emission intensity decreased from 0.765 0 kg CO2/m3 before the retrofits to 0.710 4 kg CO2/m3 after,achieving notable environmental benefits.[Conclusion]Low-carbon operation in wastewater treatment should focus on micro-level low-carbon mechanisms,leveraging adjustments to operational parameters and complemented by the use of renewable energy generation,to collectively propel the wastewater treatment industry towards a more low-carbon and environmentally friendly direction.关键词
污水处理厂(WWTP)/碳减排/碳核算/低碳运行/节能降耗Key words
wastewater treatment plant(WWTP)/carbon emission reduction/carbon accounting/low carbon operation/energy conservation and consumption reduction分类
土木建筑引用本文复制引用
梁言,杨景然,陈阳,石凤,曾鸿杰..福建某污水厂碳排放核算及低碳运行分析[J].净水技术,2025,44(4):108-118,165,12.基金项目
中建市政西北院科技研发课题(XBSZKY2218)资助项目 （XBSZKY2218）
