基于厌氧碳循环理论的污水收集典型单元碳排放核算方法研究  

RESEARCH ON CARBON EMISSION ACCOUNTING METHOD FOR TYPICAL WASTEWATER COLLECTION UNITS BASED ON ANAEROBIC CARBON CYCLE THEORY

作　　者：娄明月 刘广兵[1,2] 刘伟京 孟溪[1,2] 施梦琦 郭明辰 LOU Mingyue;LIU Guangbing;LIU Weijing;MENG Xi;SHI Mengqi;GUO Mingchen(Jiangsu Provincial Academy of Environmental Science,Nanjing 210036,China;Jiangsu Provincial Key Laboratory of Environmental Engineering,Nanjing 210036,China)

机构地区：[1]江苏省环境科学研究院,南京210036 [2]江苏省环境工程重点实验室,南京210036

出　　处：《环境工程》2024年第11期61-71,共11页Environmental Engineering

基　　金：江苏省碳达峰碳中和科技创新专项资金(BE2022861)。

摘　　要：为评估污水收集系统典型单元直接碳排放能力,以江苏省南京市鼓楼区凤凰西街污水收集单元为研究对象,利用有机物分子结构和微生物群落结构推定系统发生的厌氧反应,并通过不同种类有机物浓度变化和反应方程式系数核算碳排放。结果表明,不同排水功能区污水管道、化粪池和污水泵站有机物种类和微生物群落结构存在显著差异,导致系统碳排放能力存在显著差异。核算发现化粪池碳排放量最大,其次是污水管道,污水泵站最小,平均CO_(2)排放量分别为169.0,11.6,5.1 mg/m^(3),平均CH_(4)排放量分别为18.9,7.5,2.0 mg/m^(3)。该研究成果可为污水收集处理行业控制温室气体排放、分析碳减排能力、设置碳强度削减目标、分解落实考核指标提供更为科学的技术手段参考。In order to evaluate the direct carbon emission capacity of typical units in sewage collection systems,the Fenghuang West Street sewage collection unit in Gulou District,Nanjing,Jiangsu Province was taken as the research object.The organic matter molecular structure and microbial community structure were used to speculate the anaerobic reactions that occurred in the system,and the carbon emissions were calculated through changes in the concentration of different types of organic matter and reaction equation coefficients.The results showed that there were significant differences in the types of organic matter and microbial community structure in sewage pipelines,septic tanks,and sewage pumping stations in different drainage functional areas,leading to significant differences in carbon emission capacity of the system.The calculation found that septic tanks have the highest carbon emissions,followed by sewage pipelines,and sewage pumping stations have the smallest.The average CO_(2) emissions are 169.0,11.6,and 5.1 mg/m^(3),respectively.The average CH_(4) emissions are 18.9,7.5,and 2.0 mg/m^(3),respectively.This study provides more scientific technical means for controlling greenhouse gas emissions,analyzing carbon reduction capabilities,setting carbon intensity reduction targets,and decomposing and implementing assessment indicators in the sewage collection and treatment industry.

关 键 词：厌氧反应 碳排放量 污水收集系统 微生物群落结构 核算方法 

分 类 号：X703[环境科学与工程—环境工程]