%0 Journal Article
%A WANG  Bao
%A HU  Ye-hao
%A ZHU  Jia-jia
%A ZHANG  Di
%A ZHOU  Hao-ran
%T Diffusion and Adsorption of Copper Ion in HPMC-modified Bentonite
%D 2025
%R 10.11988/ckyyb.20240104
%J Journal of Changjiang River Scientific Research Institute
%P 127-126
%V 42
%N 4
%X <p id="p00010">A series of through-diffusion tests were carried out to explore the diffusion and adsorption behaviors of Cu<sup>2+</sup> 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 Cu<sup>2+</sup>. The diffusion test results indicated that when the HPMC content reached 2% and 5%, the capacity of bentonite adsorbing Cu<sup>2+</sup> decreased by 40% and 46%, respectively, while the diffusion coefficient of Cu<sup>2+</sup> 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 Cu<sup>2+</sup> 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.</p>
%U http://ckyyb.crsri.cn/EN/10.11988/ckyyb.20240104