某污水处理厂减污—节能—降碳的长效运行效能评估研究
Research on the Long-Term Operational Efficiency Evaluation of Pollution Reduction,Energy Conservation,&Carbon Reduction in a Certain Sewage Treatment Plant
蒋富海 1唐艳冬 2陈亚松 3张显忠4
作者信息
- 1. 中持水务股份有限公司,北京 100192
- 2. 生态环境部对外合作与交流中心,北京 100035
- 3. 中国长江三峡集团有限公司 长江生态环境工程研究中心,北京 100038
- 4. 上海市城市建设设计研究总院(集团)有限公司,上海 200125
- 折叠
摘要
基于污水处理厂的年度运行周期,建立相对规范量化的单位处理负荷的能耗、碳排放强度指标的核算与评估体系.通过 3 a长效期类比,某污水处理厂实际单位处理量的碳排放强度为 0.60～0.93 kgCO2/m3,单位COD消减量的碳排放强度为 1.98～2.49 kgCO2/kgCOD,其值与单位综合耗氧污染物消减量的碳排放强度值相近,而单位TN消减量的碳排放强度达到 12.9～15.8 kgCO2/kgTN.单位处理量的碳排放强度未必与单位污染物消减量的碳排放强度呈现同向关联性变化.该厂排放源主要来自于间接碳排放,其中药剂、电力的间接碳排放强度在总量合计占比超过 60%,药剂优耗降碳宜重点抓好脱氮碳源、化学除磷 2 类.因碳排放因子选值的不确定性,可能会导致不同污水处理厂之间碳排放强度效能评估缺乏量化可比性.
Abstract
Based on the annual operating cycle of sewage treatment plants,a relatively standardized and quantified accounting and evaluation system for energy consumption and carbon emission intensity indicators per unit of treatment load is established.Through a 3-year long-term analogy,the actual carbon emission intensity per unit of treatment capacity of a sewage treatment plant is 0.60～0.93 kgCO2/m3,and the carbon emission intensity per unit of COD reduction is 1.98～2.49 kgCO2/kgCOD,which is similar to the carbon emission intensity per unit of comprehensive oxygen consumption pollutant reduction.The carbon emission intensity per unit of TN reduction reaches 12.9～15.8 kgCO2/kgTN.The carbon emission intensity per unit of processing capacity may not necessarily show a consistent correlation with the carbon emission intensity per unit of pollutant reduction.The main source of emissions from the factory comes from indirect carbon emissions,with the indirect carbon emission intensity of chemicals and electricity accounting for more than 60%of the total.It is recommended to focus on nitrogen removal carbon sources and chemical phosphorus removal for optimal consumption and carbon reduction of chemicals.Due to the uncertainty in the selection of carbon emission factors,it may lead to a lack of quantitative comparability in the evaluation of carbon emission intensity and efficiency among different sewage treatment plants.
关键词
污水处理厂/经济能耗/碳排放/碳排放强度/降碳减污/节能降耗Key words
sewage treatment plant/economic energy consumption/carbon emissions/carbon emission intensity/carbon reduction&pollution reduction/energy saving引用本文复制引用
出版年
2024
NETL
NSTL
万方数据