第31 卷第 4期
2011 年4月
环境科学学报
Acta Scientiae Circumstantiae
Vol. 31,No. 4
Apr. ,2011
基金项目:国家高技术研究发展计划项目(No. 2009AA064703,2008AA062402)
Supported by the National High-Tech Research and Development Program of China(No. 2009AA064703,2008AA062402)
作者简介:郭瑞(1987—) ,
女,
博士研究生,E-mail:guor. 10b@ igsnrr. ac. cn,guorui3030@ 163. com;*通讯作者(责任作者),E-mail:chentb@
igsnrr. ac. cn
Biography:GUO Rui(1987—) ,female,Ph. D. candidate,E-mail:guor. 10b@ igsnrr. ac. cn,guorui3030@ 163. com;*Corresponding author,E-
mail:chentb@ igsnrr. ac. cn
郭瑞,
陈同斌,
张悦,
等. 2011. 不同污泥处理与处置工艺的碳排放
[J].环境科学学报,31(4):673-679
Guo R,Chen T B,Zhang Y,et al. 2011. Review of carbon emission in the process of sludge treatment and disposal[J]. Acta Scientiae Circumstantiae,
31(4):673-679
不同污泥处理与处置工艺的碳排放
郭瑞1,
陈同斌1,*,
张悦2,
刘洪涛1,
沈玉君1,
高定1,
郑国砥1,
程志鹏3
1. 中国科学院地理科学与资源研究所环境修复中心,
北京 100101
2. 住房和城乡建设部城市建设司,
北京 100835
3. 重庆水务集团渝水环保有限公司,
重庆 400015
收稿日期:2010-12-06 修回日期:2010-12-15 录用日期:2010-12-29
摘要:针对目前主流的污泥处理处置工艺,
总结了各工艺碳排放情景及其影响因素.好氧堆肥、
干化、
土地利用、
焚烧的碳主要以CO2的形式排
放;而厌氧消化和填埋的碳排放以CH4为主.好氧堆肥的CO2排放当量较低,
填埋的CO2排放当量较高.好氧堆肥、
厌氧消化、
填埋工艺分别可
以通过改善通风状况、
前处理和不同类型污泥联合处理、
覆盖有机材料等方法实现碳减排.而降低能耗是干化和焚烧工艺碳减排的有效措施.
土地利用可增加生物量,
因此增加了碳汇能力.采用好氧堆肥-
土地利用工艺路线处理处置污泥是减少碳排放的重要途径.
关键词:污泥;处理;处置;碳排放;温室气体
文章编号:0253-2468(2011)04-673-07 中图分类号:X703 文献标识码:A
Review of carbon emission in the process of sludge treatment and disposal
GUO Rui1,CHEN Tongbin1,*,ZHANG Yue2,LIU Hongtao1,SHEN Yujun1,GAO Ding1,ZHENG Guodi1,
CHENG Zhipeng3
1. Center for Environmental Remediation,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,
Beijing 100101
2. Department of Village and Township Construction,Ministry of Housing and Urban-Rural Development,Beijing 100835
3. Yushui Environmental Protection Limited Company,Chongqing Water Holding(Group)CO. ,LTD. ,Chongqing 400015
Received 6 December 2010;received in revised form 15 December 2010;accepted 29 December 2010
Abstract:This study focuses on the problem of carbon emission (CO2and CH4as the main greenhouse gases)during the process of sludge treatment and
disposal by summarizing its quantity and influential factors. CO2was the main C compound emitted during composting,drying (bio-drying and thermal
drying),land application and incineration,while CH4was the major species during anaerobic digestion and landfilling. Composting landfills produced
lower carbon emissions,while the landfills carbon emission was higher than other methods. Carbon emission can be reduced by improving aeration
conditions during composting,pre-treatment and co-digestion of various sludges during anaerobic digestion and providing an organic cover in the landfill.
Considering the technology of drying and incineration,reduction of energy consumption could efficiently control carbon emission. Land application
produced negative carbon emission in the long term. A combination of composting and land application was the optimal scheme to reduce carbon emission
during the process of sludge treatment and disposal.
Keywords:sewage sludge;treatment;disposal;carbon emission;greenhouse gas
1引言!
(Introduction)
近年来,
全球气候变暖的趋势引起了政府部门
和学术界的普通关注. CO2、CH4是重要的温室气体,
且CH4的温室效应为CO2的25 倍(IPCC,2007).我
国政府在哥本哈 根国际气候变化会议 上承诺,
到
2020 年单 位 GDP 碳排放较 2005 年下降40% ~
45% . 因此,
各行业面临着巨大的碳减排压力,
亟待