| 污水处理厂减污降碳协同绩效评价 |
| 摘要点击 2456 全文点击 306 投稿时间：2024-08-21 修订日期：2024-10-22 |
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| 中文关键词 污水处理 减污降碳 成本 协同指数 相关性分析 |
| 英文关键词 wastewater treatment pollution and carbon reduction cost synergy index correlation analysis |
| DOI 10.13227/j.hjkx.202408180 |
| 作者 | 单位 | E-mail | | 高月明 | 生态环境部环境规划院国家环境保护环境规划与政策模拟重点实验室, 北京 100041
生态环境部环境规划院京津冀区域生态环境研究中心, 北京 100041 | gaoym@caep.org.cn | | 王建童 | 生态环境部环境规划院国家环境保护环境规划与政策模拟重点实验室, 北京 100041
生态环境部环境规划院京津冀区域生态环境研究中心, 北京 100041 | | | 张伟 | 生态环境部环境规划院国家环境保护环境规划与政策模拟重点实验室, 北京 100041
生态环境部环境规划院京津冀区域生态环境研究中心, 北京 100041 | zhangwei@caep.org.cn | | 张磊 | 江苏省环境科学研究院江苏省环境工程重点实验室, 南京 210036 | | | 蔡宇 | 德阳市生态环境局, 德阳 618000 | | | 蒋洪强 | 生态环境部环境规划院国家环境保护环境规划与政策模拟重点实验室, 北京 100041
生态环境部环境规划院京津冀区域生态环境研究中心, 北京 100041 | | | 刘伟京 | 江苏省环境科学研究院江苏省环境工程重点实验室, 南京 210036 | |
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| 中文摘要 |
| 随着城镇化的不断推进，中国污水处理设施建设发展迅速，但缺乏针对污水处理厂减污降碳协同性研究. 为量化污水处理厂减污降碳协同效应，构建了污水处理厂减污降碳协同绩效评价体系，运用耦合协调模型计算污染物削减、碳减排和成本控制系统的协同指数，并评价了中国南方640座污水处理厂的减污降碳协同效果，最后通过Spearman相关系数对减污降碳协同指数的影响因素进行进一步研究. 结果表明：①A2/O工艺污水处理厂在污染物削减方面表现最佳，单位污水污染物削减量较高；A2/O工艺和SBR类工艺的污水处理厂单位污水碳排放强度较低，展现出良好的碳减排效果；≥5万t·d-1规模的污水处理厂单位污水治理成本最低，表现出较强的成本控制能力. ②接近80%污水处理厂实现了较好的减污降碳协同效果，达到了高度协调水平，尤其是A2/O工艺的污水处理厂；污水处理厂规模越大，减污降碳协同效果越好. ③减污降碳协同指数与污染物指标呈正相关关系，而与碳排放强度和成本指标呈负相关关系；单位污水污染物综合削减量是正相关最强的指标，而单位污水治理成本是负相关最强的指标. 研究显示，污水处理厂在污染物达标排放的基础上，亟需在碳排放和成本控制方面制定节能绿色转型路径与措施. |
| 英文摘要 |
| With the continuous advancement of urbanization， the construction of wastewater treatment plants （WWTPs） in China is developing rapidly， but there is a lack of synergistic research on pollution and carbon reduction in WWTPs. To quantify the synergistic effect of pollution and carbon reduction， a synergistic performance evaluation system for pollution and carbon reduction at WWTPs was constructed. The coupled coordination model was used to calculate the synergy index of pollutant reduction， carbon emission reduction， and cost control system， and the synergistic effect of pollution and carbon reduction of 640 WWTPs in southern China was evaluated. Finally， the influencing factors of the synergy index of pollutant and carbon reduction were further investigated by Spearman's correlation coefficient. The results firstly showed that WWTPs with the A2/O process performed best in terms of pollutant reduction， with higher pollutant reduction per unit of effluent； WWTPs with the A2/O process and SBR-type process had lower carbon emission intensity per unit of effluent， demonstrating a good carbon emission reduction； and WWTPs with a scale of more than 50 000 t·d-1 had the lowest cost per unit of effluent treatment， showing strong cost control ability. Secondly， nearly 80% of WWTPs had realized a better pollution reduction and carbon synergy effect， reaching a highly coordinated level， especially the WWTPs with the A2/O process. The pollution and carbon reduction synergy effect improved as the scale of the WWTPs became larger. Thirdly， the synergy index was positively correlated with pollutant indicators， but it was negatively correlated with carbon emission intensity and cost indicators. The comprehensive reduction of pollutants per unit of wastewater was the most strongly positively correlated indicator， while the cost of treatment per unit of wastewater was the most strongly negatively correlated indicator. The study showed that WWTPs should urgently develop energy-saving green transformation paths and measures in carbon emission and cost control on the basis of pollutant emission standards. |
