污泥焚烧灰渣在水泥中资源化利用的环境影响评价  

Environmental Impact Assessment of Resource Utilization of Incinerated Sewage Sludge Ash Used in Cement

作　　者：邓恺 李华兵 袁淑婷 郭晓潞[2,3] DENG Kai;LI Huabing;YUAN Shuting;GUO Xiaolu(China Resources Cement Technology R&D Co.,Ltd.,Guangzhou 510460,China;Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education,Tongji University,Shanghai 201804,China;School of Materials Science and Engineering,Tongji University,Shanghai 201804,China)

机构地区：[1]华润水泥技术研发有限公司,广州510460 [2]同济大学先进土木工程材料教育部重点实验室,上海201804 [3]同济大学材料科学与工程学院,上海201804

出　　处：《硅酸盐通报》2025年第4期1346-1356,共11页Bulletin of the Chinese Ceramic Society

基　　金：“十四五”国家重点研发计划课题(2021YFB3802001);国家自然科学基金(52178241,12411530113)。

摘　　要：本文通过生命周期评价方法,结合试验配合比、水泥厂实测消耗排放数据及中国生命周期基础数据库数据,对污泥焚烧灰渣(ISSA)替代部分生料用于熟料生产、作为混合材用于水泥生产进行了综合环境负荷值评估及环境影响与抗压强度耦合评价。结果表明,随着ISSA替代生料量的增加,熟料的温室效应(GWP)逐渐下降,不可再生资源消耗逐渐增加;ISSA掺量为3.6%(质量分数,下同)时,熟料的综合环境负荷值相比于水泥厂熟料下降1.05%;ISSA掺量为3.0%时,熟料的单位抗压强度综合环境负荷值最低。随着ISSA作为混合材掺量的增加,水泥的综合环境负荷值显著降低,GWP下降率最大;ISSA掺量达30.0%时,水泥的综合环境负荷值下降29.41%;ISSA掺量控制在20.0%以内时,水泥的单位抗压强度综合环境负荷值相对较优。In this paper,through the life cycle assessment method,combined with the experimental mix proportion,the actual measured consumption and emission data of the cement plant and the data of the China life cycle database,the incinerated sewage sludge ash(ISSA)is used to replace part of the raw material for clinker production and as a mixture for cement production.The assessment of integrated environmental load indicator and the coupling evaluation of environmental impact and compressive strength were carried out.The results show that as the dosage of ISSA replacing raw materials increases,the global warming potential(GWP)of clinker gradually decreases,and the consumption of abiotic depletion potential gradually increases.At the ISSA dosage of 3.6%(mass fraction,the same below),the integrated environmental load indicator of clinker decreases by 1.05%compared with cement plant clinker;at the ISSA dosage of 3.0%,clinker has the lowest integrated environmental load indicator of unit compressive strength.As the dosage of ISSA as a mixed material increases,the integrated environmental load indicator of cement significantly reduces,and the reduction of GWP is the highest.When the ISSA dosage reaches 30.0%,the integrated environmental load indicator of cement declines by 29.41%.When the ISSA dosage is within 20.0%,cement shows the relatively optimal integrated environmental load indicator of unit compressive strength.

关 键 词：污泥焚烧灰渣 生命周期评价 熟料 水泥 混合材 环境负荷 

分 类 号：TU525[建筑科学—建筑技术科学]