Cu2+在HPMC改性膨润土中的吸附和扩散行为

王宝; 胡业昊; 朱佳佳; 张迪; 周浩然

doi:10.11988/ckyyb.20240104

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raybet体育在线院报 ›› 2025, Vol. 42 ›› Issue (4) : 127-126. DOI: 10.11988/ckyyb.20240104

岩土工程

Cu²⁺在HPMC改性膨润土中的吸附和扩散行为

王宝 ¹^,² ,
胡业昊 ¹ ,
朱佳佳 ¹ ,
张迪 ¹ ,
周浩然 ¹

作者信息 +

Diffusion and Adsorption of Copper Ion in HPMC-modified Bentonite

WANG Bao ¹^,² ,
HU Ye-hao ¹ ,
ZHU Jia-jia ¹ ,
ZHANG Di ¹ ,
ZHOU Hao-ran ¹

Author information +

文章历史 +

摘要

开展穿透扩散试验(Through-Diffusion Test),研究重金属Cu²⁺在羟丙基甲基纤维素(HPMC)改性膨润土中的吸附和扩散行为,并与未改性膨润土进行比较。同时,使用污染物运移模拟软件Pollute V7.0定量评估HPMC改性对膨润土截污性能的影响。研究结果表明,当HPMC的添加量为2%和5%时,Cu²⁺在膨润土上的吸附量分别减小了40%和46%,而扩散速度分别降低了7%和34%。Pollute V7.0的模拟计算结果显示,添加2%和5%的HPMC,可将膨润土对Cu²⁺的截污性能分别提高1.32倍和2.58倍。研究结果可为HPMC改性膨润土截污性能评估提供基础参数。

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 performance 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 coefficient 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.

导出引用

王宝, 胡业昊, 朱佳佳, 等. Cu²⁺在HPMC改性膨润土中的吸附和扩散行为[J]. raybet体育在线院报. 2025, 42(4): 127-126 https://doi.org/10.11988/ckyyb.20240104

WANG Bao, HU Ye-hao, ZHU Jia-jia, et al. Diffusion and Adsorption of Copper Ion in HPMC-modified Bentonite[J]. Journal of Changjiang River Scientific Research Institute. 2025, 42(4): 127-126 https://doi.org/10.11988/ckyyb.20240104

中图分类号： TU57

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