• 文献检索
  • 文档翻译
  • 深度研究
  • 学术资讯
  • Suppr Zotero 插件Zotero 插件
  • 邀请有礼
  • 套餐&价格
  • 历史记录
应用&插件
Suppr Zotero 插件Zotero 插件浏览器插件Mac 客户端Windows 客户端微信小程序
定价
高级版会员购买积分包购买API积分包
服务
文献检索文档翻译深度研究API 文档MCP 服务
关于我们
关于 Suppr公司介绍联系我们用户协议隐私条款
关注我们

Suppr 超能文献

核心技术专利：CN118964589B侵权必究
粤ICP备2023148730 号-1Suppr @ 2026

文献检索

告别复杂PubMed语法，用中文像聊天一样搜索，搜遍4000万医学文献。AI智能推荐，让科研检索更轻松。

立即免费搜索

文件翻译

保留排版，准确专业，支持PDF/Word/PPT等文件格式，支持 12+语言互译。

免费翻译文档

深度研究

AI帮你快速写综述，25分钟生成高质量综述，智能提取关键信息，辅助科研写作。

立即免费体验

凹凸棒石改性黄土渗透系数与孔隙率、围压及渗透压关系研究

Study on the relationship between permeability coefficient and porosity, the confining and osmotic pressure of attapulgite-modified loess.

作者信息

Zhang Zhengrui, Pishro Ahad Amini, Zhang Lili, Ma Xuejiao, Matlan Siti Jahara, Taha Nazaruddin Abdul, Pishro Mojdeh Amini

机构信息

College of Civil Engineering, Sichuan University of Science & Engineering, Zigong, 643000, Sichuan, People's Republic of China.

Civil Engineering Programme, Faculty of Engineering, University of Malaysia Sabah, 88400, Kota Kinabalu , Sabah, Malaysia.

出版信息

Sci Rep. 2023 Sep 26;13(1):16077. doi: 10.1038/s41598-023-43197-5.

DOI:10.1038/s41598-023-43197-5
PMID:37752276
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10522585/
Abstract

This study investigated attapulgite-modified loess as an efficient and cost-effective method for creating an impermeable liner for landfills in regions with scarce clay resources. Laboratory permeability tests were conducted using a flexible wall permeameter to determine the permeability of compacted loess and attapulgite mixtures under varying osmotic conditions. The relationship between the permeability coefficient, attapulgite dosage, radial pressure, and osmotic pressure was analyzed. Nuclear magnetic resonance and scanning electron microscopy were also used to observe the microstructure of the modified loess. The results showed that attapulgite dosage significantly reduced the permeability coefficient, but the effect became limited when the content surpassed 10%. The decrease of the permeability coefficient of the modified loess is mainly due to the filling of pores between the loess by attapulgite, which makes the pore size and throat size of the modified loess smaller. The modified loess displayed a sheet structure that contributed to an increased permeability coefficient due to increased radial pressure. This study provides valuable insights into using attapulgite-modified loess as a material for landfill lining in regions with scarce clay resources.

摘要

本研究探讨了凹凸棒石改性黄土作为一种高效且经济的方法，用于在粘土资源稀缺地区为垃圾填埋场创建防渗衬垫。使用柔性壁渗透仪进行实验室渗透试验，以确定压实黄土和凹凸棒石混合物在不同渗透条件下的渗透性。分析了渗透系数、凹凸棒石用量、径向压力和渗透压之间的关系。还利用核磁共振和扫描电子显微镜观察改性黄土的微观结构。结果表明，凹凸棒石用量显著降低了渗透系数，但当含量超过10%时，效果变得有限。改性黄土渗透系数的降低主要是由于凹凸棒石填充了黄土颗粒间的孔隙，使得改性黄土的孔径和喉道尺寸变小。改性黄土呈现出片状结构，由于径向压力增加，导致渗透系数增大。本研究为在粘土资源稀缺地区将凹凸棒石改性黄土用作垃圾填埋场衬垫材料提供了有价值的见解。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/cd1cbd1f4acf/41598_2023_43197_Fig14_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/264998462fe3/41598_2023_43197_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/453949ecb762/41598_2023_43197_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/664c99fed050/41598_2023_43197_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/3a111a4abf24/41598_2023_43197_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/35c1e5632dd6/41598_2023_43197_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/d7f4beb7f588/41598_2023_43197_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/6a1e32bf0bb9/41598_2023_43197_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/ef9428d51d00/41598_2023_43197_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/0cadd1580d87/41598_2023_43197_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/0ffcd2f80569/41598_2023_43197_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/89ea2242b79f/41598_2023_43197_Fig11_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/617804fb74d5/41598_2023_43197_Fig12_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/28a0d7759005/41598_2023_43197_Fig13_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/cd1cbd1f4acf/41598_2023_43197_Fig14_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/264998462fe3/41598_2023_43197_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/453949ecb762/41598_2023_43197_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/664c99fed050/41598_2023_43197_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/3a111a4abf24/41598_2023_43197_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/35c1e5632dd6/41598_2023_43197_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/d7f4beb7f588/41598_2023_43197_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/6a1e32bf0bb9/41598_2023_43197_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/ef9428d51d00/41598_2023_43197_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/0cadd1580d87/41598_2023_43197_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/0ffcd2f80569/41598_2023_43197_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/89ea2242b79f/41598_2023_43197_Fig11_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/617804fb74d5/41598_2023_43197_Fig12_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/28a0d7759005/41598_2023_43197_Fig13_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed5a/10522585/cd1cbd1f4acf/41598_2023_43197_Fig14_HTML.jpg

相似文献

1
Study on the relationship between permeability coefficient and porosity, the confining and osmotic pressure of attapulgite-modified loess.凹凸棒石改性黄土渗透系数与孔隙率、围压及渗透压关系研究
Sci Rep. 2023 Sep 26;13(1):16077. doi: 10.1038/s41598-023-43197-5.
2
Geotechnical Evaluation of Loess Modifications as the Sustainable Compacted Soil Liner Material in Solid Waste Landfill.作为固体废物填埋场可持续压实土壤衬垫材料的黄土改良的岩土工程评价
Materials (Basel). 2022 Jul 18;15(14):4982. doi: 10.3390/ma15144982.
3
Experimental study on impermeability of Loess liner mixed with bentonite-HDTMA.膨润土-HDTMA 改性黄土衬垫防渗性能的试验研究。
Sci Rep. 2023 May 30;13(1):8740. doi: 10.1038/s41598-023-35433-9.
4
Study on hydraulic conductivity of dredged sediment-attapulgite vertical cutoff walls under confining pressure.围压下疏浚底泥-凹凸棒石垂直防渗墙水力传导性能研究。
Environ Res. 2024 Aug 15;255:119110. doi: 10.1016/j.envres.2024.119110. Epub 2024 May 8.
5
Permeability characteristics and structural evolution of compacted loess under different dry densities and wetting-drying cycles.不同干密度和干湿循环下压实黄土的渗透特性及结构演化。
PLoS One. 2021 Jun 28;16(6):e0253508. doi: 10.1371/journal.pone.0253508. eCollection 2021.
6
Variation and correlation between water retention capacity and gas permeability of compacted loess overburden during wetting-drying cycles.压实黄土覆盖层在干湿循环过程中持水能力和透气性能的变化及其相关性。
Environ Res. 2024 Jul 1;252(Pt 2):118895. doi: 10.1016/j.envres.2024.118895. Epub 2024 Apr 9.
7
Permeability and Disintegration Characteristics of Loess Solidified by Guar Gum and Basalt Fiber.瓜尔胶与玄武岩纤维固化黄土的渗透性及崩解特性
Materials (Basel). 2024 Jun 27;17(13):3150. doi: 10.3390/ma17133150.
8
Effect of microstructure change on permeability of flax-fiber reinforced silty clay soaked with zinc-ion solution.锌离子溶液浸泡下微观结构变化对亚麻纤维增强粉质黏土渗透性的影响
Sci Rep. 2020 Jul 9;10(1):11296. doi: 10.1038/s41598-020-68332-4.
9
Three-dimensional pore characterization of intact loess and compacted loess with micron scale computed tomography and mercury intrusion porosimetry.利用微米级计算机断层扫描和压汞孔隙度法对原状黄土和压实黄土进行三维孔隙特征描述。
Sci Rep. 2020 May 22;10(1):8511. doi: 10.1038/s41598-020-65302-8.
10
Gas and liquid permeability in the variably saturated compacted loess used as an earthen final cover material in landfills.用作垃圾填埋场封场覆盖材料的压实黄土的非饱和条件下气体和液体渗透率。
Waste Manag. 2020 Mar 15;105:49-60. doi: 10.1016/j.wasman.2020.01.030. Epub 2020 Feb 3.

本文引用的文献

1
Geotechnical Evaluation of Loess Modifications as the Sustainable Compacted Soil Liner Material in Solid Waste Landfill.作为固体废物填埋场可持续压实土壤衬垫材料的黄土改良的岩土工程评价
Materials (Basel). 2022 Jul 18;15(14):4982. doi: 10.3390/ma15144982.
2
Study on Fractal Characteristics of Mineral Particles in Undisturbed Loess and Lime-Treated Loess.原状黄土及石灰改良黄土中矿物颗粒分形特征研究
Materials (Basel). 2021 Nov 1;14(21):6549. doi: 10.3390/ma14216549.
3
Functionalized Attapulgite for the Adsorption of Methylene Blue: Synthesis, Characterization, and Adsorption Mechanism.
用于亚甲基蓝吸附的功能化凹凸棒石：合成、表征及吸附机理
ACS Omega. 2021 Jul 21;6(30):19586-19595. doi: 10.1021/acsomega.1c02111. eCollection 2021 Aug 3.
4
Comparing desorption properties of pollutants on bentonite particles and in compacted bentonite.比较污染物在膨润土颗粒和压实膨润土中的解吸特性。
Ecotoxicol Environ Saf. 2021 Mar 15;211:111940. doi: 10.1016/j.ecoenv.2021.111940. Epub 2021 Jan 19.
5
Evaluation of silver nanoparticles (AgNPs) penetration through a clay liner in landfills.评估纳米银颗粒（AgNPs）穿透垃圾填埋场中的粘土衬层。
J Hazard Mater. 2021 Feb 15;404(Pt A):124098. doi: 10.1016/j.jhazmat.2020.124098. Epub 2020 Oct 1.
6
Three-dimensional pore characterization of intact loess and compacted loess with micron scale computed tomography and mercury intrusion porosimetry.利用微米级计算机断层扫描和压汞孔隙度法对原状黄土和压实黄土进行三维孔隙特征描述。
Sci Rep. 2020 May 22;10(1):8511. doi: 10.1038/s41598-020-65302-8.
7
Stabilization of Loess Using Nano-SiO₂.利用纳米二氧化硅对黄土进行加固
Materials (Basel). 2018 Jun 14;11(6):1014. doi: 10.3390/ma11061014.