我国南北两城市重力流污水管道甲烷排放过程研究  

Study on methane emission processes from gravity sewers in two cities of Southern and Northern China

作　　者：刘武双 高菁阳 朱春伟 钟丽锦 周莉芬 董欣[1,6] LIU Wushuang;GAO Jingyang;ZHU Chunwei;ZHONG Lijin;ZHOU Lifen;DONG Xin(School of Environment,Tsinghua University,Beijing 100084,China;Beijing Huanding Environmental Big Data Institute,Beijing 100083,China;College of Engineering,Peking University,Beijing 100871,China;Research Institute for Environmental Innovation(Suzhou),Tsinghua,Suzhou 215163,China;Kunshan Water Authority,Kunshan 215301,China;State Key Joint Laboratory of Environment Simulation and Pollution Control,Beijing 100084,China)

机构地区：[1]清华大学环境学院,北京100084 [2]北京环丁环保大数据研究院,北京100083 [3]北京大学工学院,北京100871 [4]清华苏州环境创新研究院,苏州215163 [5]昆山市水务局,昆山215301 [6]环境模拟与污染控制国家重点实验室,北京100084

出　　处：《给水排水》2024年第10期127-137,145,共12页Water & Wastewater Engineering

摘　　要：近年来,污水管道的甲烷排放已被逐步重视。对我国南北方两城市的重力流污水管道甲烷排放过程进行了研究,得到南方城市污水管道平均溶解态和气态甲烷浓度以及甲烷排放因子分别为9.52 mg/L、1076 ppm和5.19 g/(m·d),北方城市污水管平均溶解态和气态甲烷浓度以及排放因子分别为0.84 mg/L、2075 ppm和4.08 g/(m·d)。同时分析了甲烷浓度与各水质指标之间的关系,比较了我国与其他国家的甲烷浓度和排放因子,估算了我国污水管道产甲烷量,并对未来的研究方向提出了建议。In recent years,the contribution of sewers to methane emissions is increasingly recognized.This study investigates the methane emission processes from gravity sewers in two cities in Southern and Northern China.It finds that the average concentrations of dissolved and gaseous methane in the sewers of southern cities are 9.52 mg/L and 1076 ppm,respectively,with a methane emission factor of 5.19 g/(m·d).In northern cities,these values are 0.84 mg/L,2075 ppm,and 4.08 g/(m·d),respectively.The study also analyzes the relationships between methane con-centrations and various water quality indicators,compares the methane concentrations and emission factors between China and other countries,estimates the total methane production from China’s sewer network,and proposes directions for future research.

关 键 词：温室气体 甲烷 重力流污水管道 

分 类 号：TU990[建筑科学—市政工程]