无锡市典型污泥处理处置全过程碳排放特征研究  

Carbon emission characteristics of typical sludge treatment and disposal process in Wuxi

作　　者：李爱民 李羽志 宋联 浦田 常伟 杨汉文 王硕[1,3,4] 李激 LI Aimin;LI Yuzhi;SONG Lian;PU Tian;CHANG Wei;YANG Hanwen;WANG Shuo;LI Ji(School of Environment and Civil Engineering,Jiangnan University,Wuri 214122,China;Wuri Guolian Environmental Science&Technology Co.,Ltd.,Wuri 214171,China;Jiangsu Key Laboratory of Anaerobic Biotechnology,Wuri 214122,China;Jiangsu College of Water Treatment Technology and Material Collaborative Innovation Center,Suzhou 215009,China)

机构地区：[1]江南大学环境与土木工程学院,无锡214122 [2]无锡国联环保科技股份有限公司,无锡214171 [3]江苏省厌氧生物技术重点实验室,无锡214122 [4]江苏省高校水处理技术与材料协同创新中心,苏州215009

出　　处：《给水排水》2022年第11期28-34,共7页Water & Wastewater Engineering

基　　金：江苏省政策引导类计划(国际科技合作/港澳台科技合作)专项资金(BZ2021030);无锡市科技创新创业资金(M20211003);江苏省碳达峰碳中和科技创新专项资金(BE2022303);江苏水处理技术与材料协同创新中心预研课题(XTCXSZ2020-2)。

摘　　要：无锡市污泥处理处置工程实行碳减排策略迫在眉睫,对无锡市3种主要的污泥处理处置技术路线进行全过程碳排放核算。核算结果表明,当处理1 t干污泥时,深度脱水-干化焚烧-填埋的碳排放量(2 985.34 kgCO_(2)/tDS)最高,其次是生物沥浸-好氧堆肥-土地利用(2 743.06 kgCO_(2)/tDS),碱性热水解-土地利用的总碳排放量最低,为1 080.64 kgCO_(2)/tDS。整体上,污泥碳排放中以电能消耗和药剂消耗为主的间接碳排放占全部碳排放量的82.4%,是污泥处理处置过程产生碳排放的主要因素。It is imminent to implement carbon emission reduction strategies for sludge treatment and disposal projects in Wuxi. Carbon emission calculation of three main sludge treatment and disposal methods in Wuxi is carried out. The accounting results show that when 1 ton of dry sludge is treated, the carbon emission(2 985.34 kgCO_(2)/tDS) of the "deep dewatering-drying-incineration-landfill" method is the highest, followed by the "bioleaching-aerobic composting-land use” method(2 743.06 kgCO_(2)/tDS), and “alkaline thermal hydrolysis-land use” presents the lowest(1 080.64 kgCO_(2)/tDS). On the whole, the indirect carbon emissions, mainly electricity consumption and chemical consumption, accounted for 82.4% of the total carbon emissions, which is the principal factor for the carbon emissions in the sludge treatment and disposal process.

关 键 词：干化焚烧 碱热水解 生物沥浸 碳排放 碳足迹 排放因子 

分 类 号：TU992[建筑科学—市政工程] X703[环境科学与工程—环境工程]