Research Center for Low Carbon Technology of Water Environment, School of Environment & Natural Resources, Renmin University of China, Beijing, 100872, China.
Beijing Drainage Group Co., Ltd, Beijing, 100022, China.
Environ Sci Pollut Res Int. 2024 May;31(25):37387-37403. doi: 10.1007/s11356-024-33731-x. Epub 2024 May 21.
In response to China's policies on pollution control and carbon emission (CE) reductions, more stringent regulations have been implemented to evaluate CE in wastewater treatment facilities. In this study, we have analyzed CE from China's wastewater treatment plants (WWTPs) and influencing factor. Emission factor (EF) and operational data integrated methods (ODIM) were utilized to measure emissions, using data collected from 247 WWTPs over a 1-year period across seven regions in China. The average CE intensity was 0.45 kgCO-eq/m, affected by region, season, influent water quality, treatment processes, effluent discharge standards, and facilities. The scale effect was obvious only in the range of 2 × 10 m/day. Underground WWTPs exhibited significantly higher CE compared to aboveground WWTPs. In summary, the assessment of CE in 247 actual WWTPs not only identifies emission reduction potential but also provides a scientific basis for formulating targeted emission reduction measures.
针对中国的污染控制和碳排放（CE）减排政策，已实施更严格的法规来评估污水处理厂的 CE。在本研究中，我们分析了中国污水处理厂（WWTPs）的 CE 和影响因素。采用排放因子（EF）和运行数据综合方法（ODIM）来测量排放，使用了在中国七个地区的 247 个 WWTP 收集的为期一年的数据。CE 强度的平均值为 0.45kgCO-eq/m，受地区、季节、进水水质、处理工艺、出水排放标准和设施的影响。规模效应仅在 2×10 m/d 的范围内明显。地下 WWTP 的 CE 明显高于地上 WWTP。总之，对 247 个实际 WWTP 的 CE 评估不仅确定了减排潜力，还为制定有针对性的减排措施提供了科学依据。
