长江科学院院报2025，Vol.42Issue(4)：127-133,7.DOI:10.11988/ckyyb.20240104
Cu2+在HPMC改性膨润土中的吸附和扩散行为
Diffusion and Adsorption of Copper Ion in HPMC-modified Bentonite
摘要
Abstract
A series of through-diffusion tests were carried out to explore the diffusion and adsorption behaviors of Cu2+in bentonites modified with hydroxypropyl methylcellulose(HPMC).The test results were compared with those of untreated bentonite.Pollute V7.0 was employed to quantitatively evaluate the impact of HPMC on the perform-ance of bentonite in intercepting Cu2+.The diffusion test results indicated that when the HPMC content reached 2％and 5％,the capacity of bentonite adsorbing Cu2+decreased by 40％and 46％,respectively,while the diffusion co-efficient of Cu2+dropped by 7％and 34％,correspondingly.The results from Pollute V7.0 demonstrated that adding 2％and 5％HPMC to sodium bentonite enhanced the performance of bentonite for adsorbing Cu2+by factors of 1.34 and 2.03,respectively.Overall,the findings of this study offer valuable information for assessing the performance of HPMC-modified bentonite.关键词
土工复合膨润土衬垫/膨润土/羟丙基甲基纤维素/扩散/吸附Key words
geosynthetic clay liners/bentonite/hydroxypropyl methylcellulose/diffusion/adsorption分类
建筑与水利引用本文复制引用
王宝,胡业昊,朱佳佳,张迪,周浩然..Cu2+在HPMC改性膨润土中的吸附和扩散行为[J].长江科学院院报,2025,42(4):127-133,7.基金项目
国家自然科学基金项目(41602291) （41602291）
