摘要
随着中国城镇污水处理行业的迅速发展,行业的温室气体排放在近年来经历了快速的增长。根据估算,我国城镇污水处理行业温室气体排放总量从2007年的8.4 Mt CO_2-eq增长至2016年的31.4Mt CO_2-eq,增长了2.7倍。温室气体排放中,以CH_4及N_2O的直接排放为主,其占排放总量的比例从2007年的52%增长至2016年的68%。从空间分布特征来看,排放总量表现为东部地区高于西部地区,排放强度则表现为北方地区高于南方地区。污水处理规模对于排放强度的影响不显著,而技术的影响则比较明显,氧化沟以及曝气生物滤池和生物膜法的排放强度相对较低。
With the development of urban sewage treatment in China,the greenhouse gas emissions (GHG) of this industry has undergone a rapid growth these years.The total emission has grown from & 4 Mt CO2-eq in 2007 to 31. 4 Mt CO2-eq in 2016, which increased by 2.7 times. The direct emission of CH4and N2O accounts for the most of total emission, which increased from 52% to 68%. From the view of prefecture level, the total GHG emission in eastern region is higher than the western region. While for emission intensity, the northern region has higher intensity than the southern region. On the plant level, scale may not significantly affect the emission intensity while the technologies can cause a difference to the emission intensity. Oxidation ditch, aerated biofilter and biofilm method tend to have lower emission intensities.
作者
郭盛杰
黄海伟
董欣
曾思育
Guo Shengjie;Huang Haiwei;Dong Xin;Zeng Siyu(School of E?iviro?unent,Tsinghuu University,Beijing 100084,China;Science and Technology and Industrialization Development Center,Ministry of Housing and Urban,Rural Development,Beijing 100835,China;State Key Joint Laboratory of Environment Simulation and Pollution Control,Beijing 100084,China)
出处
《给水排水》
CSCD
北大核心
2019年第4期56-62,共7页
Water & Wastewater Engineering
关键词
城镇污水处理
温室气体
时空分布
规模
技术
Urban sewage treatment
Greenhouse gas emission
Spatial and temporal trend
Scale
Technology
