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5. Environmentally Friendly Adsorbents

Author

Siswoyo, Eko, Dai, Yingjie, Mori, Masanobu, Wada, Nobuhiko, Itabashi, Hideyuki, Barceló, Damià, Series Editor, de Boer, Jacob, Editorial Board Member, Kostianoy, Andrey G., Series Editor, Garrigues, Philippe, Editorial Board Member, Hutzinger, Otto, Founding Editor, Gu, Ji-Dong, Editorial Board Member, Jones, Kevin C., Editorial Board Member, Knepper, Thomas P., Editorial Board Member, Negm, Abdelazim M., Editorial Board Member, Newton, Alice, Editorial Board Member, Nghiem, Duc Long, Editorial Board Member, Garcia-Segura, Sergi, Editorial Board Member, Tanaka, Shunitz, editor, Kurasaki, Masaaki, editor, Morikawa, Masaaki, editor, and Kamiya, Yuichi, editor

Published
2023
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6. Some Pollution Problems to Consider the Design for Remediation

Author

Putra, Rudy Syah, Yustiawati, Syawal, M. Suhaemi, Dai, Yingjie, Lin, Yongbo, Rahman, Md. Mostafizur, Shammi, Mashura, Shunitz, Tanaka, Barceló, Damià, Series Editor, de Boer, Jacob, Editorial Board Member, Kostianoy, Andrey G., Series Editor, Garrigues, Philippe, Editorial Board Member, Hutzinger, Otto, Founding Editor, Gu, Ji-Dong, Editorial Board Member, Jones, Kevin C., Editorial Board Member, Knepper, Thomas P., Editorial Board Member, Negm, Abdelazim M., Editorial Board Member, Newton, Alice, Editorial Board Member, Nghiem, Duc Long, Editorial Board Member, Garcia-Segura, Sergi, Editorial Board Member, Tanaka, Shunitz, editor, Kurasaki, Masaaki, editor, Morikawa, Masaaki, editor, and Kamiya, Yuichi, editor

Published
2023
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40. Adsorption of neutral red and malachite green onto soybean dregs: influencing factors and thermodynamic studies

Author

Li, Wei, Wang, Shiyao, Zeng, Lingling, Wang, Xuesong, Li, Zhixin, Liu, Yanbing, Zhu, Liya, and Dai, Yingjie

Abstract

In this study, sodium dodecyl sulfate (SDS) was used to modify soybean dregs. Modified soybean dregs (MSD) and soybean dregs (SD) were used as adsorbents, and the adsorbents were characterized by the infrared spectrum and pore size analysis. The influencing factors of SD and MSD on the adsorption of neutral red (NR) and malachite green (MG) were studied, and the thermodynamics of the adsorption isotherm and adsorption process were discussed. The findings revealed that the adsorption process was significantly affected by varying pH values and salt ion concentrations within the solution. However, altering the quantity of adsorbent added had no considerable impact on the removal rate of NR. The results of the adsorption isotherm fitting demonstrated that the adsorption process complied with the Langmuir and Temkin isothermal adsorption models. The saturation adsorption amount of NR on SD and MSD are 208 and 227 mg/g, respectively, and that of MG are 41.0 and 125 mg/g, respectively. Moreover, it was observed that the adsorption of NR and MG on SD and MSD followed a spontaneous exothermic pattern, with the SDS-treated MSD adsorbent exhibiting a higher adsorption capacity.

Published
2023
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