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Study on the Permeability of Modified Bentonite Slurry in Landfill
Joint Authors
Sheng, Yanmin
Zhang, Zenan
Dai, Guozhong
Source
Advances in Materials Science and Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-11-24
Country of Publication
Egypt
No. of Pages
10
Abstract EN
The impermeability of cutoff wall is one of the most important factors affecting the life of landfill.
Hence, we used sodium carboxymethyl cellulose to modify bentonite and developed a modified bentonite-cement-fly ash antiseepage slurry with a low permeability coefficient.
The main material of the slurry is bentonite modified by sodium carboxymethyl cellulose, cement, fly ash, and auxiliary materials such as sodium carbonate and polycarboxylate superplasticizer.
The optimal ratio of the basic components of the antiseepage slurry was optimized by the orthogonal test method.
The permeability coefficient of the consolidated slurry was determined by a variable head permeameter.
The optimal dosage of each component of slurry is 210∼220 kg/m3 cement, 210∼220 kg/m3 bentonite, 1.5∼2.5 kg/m3 sodium carbonate, 1.5∼2.0 kg/m3 sodium carboxymethyl cellulose, 160 kg/m3 fly ash, and 3 kg/m3 polycarboxylate superplasticizer.
The 28-day consolidation slurry permeability coefficient is less than 1 × 10−8 cm/s and has a good adsorption effect on the pollutants in landfill leachate.
American Psychological Association (APA)
Zhang, Zenan& Dai, Guozhong& Sheng, Yanmin. 2020. Study on the Permeability of Modified Bentonite Slurry in Landfill. Advances in Materials Science and Engineering،Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1129493
Modern Language Association (MLA)
Zhang, Zenan…[et al.]. Study on the Permeability of Modified Bentonite Slurry in Landfill. Advances in Materials Science and Engineering No. 2020 (2020), pp.1-10.
https://search.emarefa.net/detail/BIM-1129493
American Medical Association (AMA)
Zhang, Zenan& Dai, Guozhong& Sheng, Yanmin. Study on the Permeability of Modified Bentonite Slurry in Landfill. Advances in Materials Science and Engineering. 2020. Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1129493
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1129493