CHENPeng-yu,TANGShou-juan,HUANGWen-ding,et al.Carbon Accounting and Analysis of Carbon Emission Reduction Potential in a Typical Urban Water Supply Plant in Jiangxi Province[J].China Water & Wastewater,2025,41(23):70-76.
Carbon Accounting and Analysis of Carbon Emission Reduction Potential in a Typical Urban Water Supply Plant in Jiangxi Province
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第41卷
Number:
第23期
Page:
70-76
Column:
Date of publication:
2025-12-01
- Keywords:
- urban water supply plant; emission factor method; carbon emission; carbon accounting; carbon emission reduction potential
- Abstract:
- The carbon emissions of a typical urban water supply plant in Jiangxi Province during its operational period from 2021 to 2023 were calculated and analyzed using the emission factor method. The carbon emission intensity of the water supply plant over the three-year period was 0.188 4 kg/m3, 0.171 0 kg/m3, and 0.171 8 kg/m3, respectively. Of the total emissions, 87.80% were attributed to purchased electricity, making it the primary source of carbon emissions. The production-related emissions from water purification chemicals accounted for 12.13%, primarily due to polyaluminium chloride and sodium hypochlorite. Carbon emissions exhibited distinct seasonal patterns. The peak in electricity-related carbon emissions occurred during the summer season of August and September, while the peak in carbon emissions associated with polyaluminium chloride production was closely correlated with periods of high-turbidity raw water intake during the rainy season, particularly from April to May. Following the implementation of photovoltaic systems, the carbon emission intensity of electricity in 2023 decreased by 14.78% compared to 2021. Correlation analysis of climate indicators, water supply indicators, and carbon emission intensity revealed that electricity consumption, raw water turbidity, precipitation, and temperature were the primary driving factors influencing carbon emission intensity. Analysis of carbon emission reduction potential indicated that the case water supply plant could achieve an approximate 44% reduction in emissions through technological optimization and the adoption of clean energy.
Last Update:
2025-12-01