期刊论文

Lu, Hai-Jun

中文

中国环境科学

1000-6923

2015

35

7

2072-2078

10.3969/j.issn.1000-6923.2015.07.025

51474168:国家自然科学基金 2014CFB889:湖北省自然科学基金 D20141703:湖北省教育厅科学技术研究项目

本校为第一且通讯机构

采用市政污泥为原材料烧制污泥灰,并将污泥灰作为改良添加剂对传统填埋场压实黏土衬垫系统进行改性,以达到实现污泥资源化利用以及减少黏土作为衬垫防渗材料的用量.为评价污泥灰改性黏土作为填埋场衬垫材料的工程特性以及微观结构,通过固结压缩试验、低温氮气吸附试验、颗粒分析试验分别检测改性黏土的压缩特性、微观孔隙结构、颗粒组成.压缩试验结果表明,受垃圾渗沥液腐蚀后的改性黏土,随污泥灰含量的增加,孔隙比增大、压缩量减小;经垃圾渗沥液腐蚀后,改性黏土的压缩系数(α1-2)为0.310~0.391 MPa~(-1),固结系数(Cv)为2.446~2.768cm~2/s.低温氮气吸附试验结果表明,改性黏土的吸附-脱附等温线属...

In order to reduce clay amount needed in the landfill liner system and recycle the sewage sludge, the sewage sludge ash (SSA), which was produced in the burning of sewage sludge, was used to improve the traditional liner system. To estimate the engineering properties of the landfill compacted clay liner system containing SSA, the consolidated compression test, the low temperature nitrogen adsorption test, the particle size analysis test were performed to determine the compression characteristic, the micro pore structure, the grain composition of the compacted clay modified by SSA. The result o...