Low concentration cadmium removal using weathered sand of basalt

IF 0.8 4区工程技术 Q4 ENGINEERING, CHEMICAL

Membrane Water Treatment Pub Date : 2021-03-01 DOI:10.12989/MWT.2021.12.2.051

Jae Hong Park, Jae Kwan Lee, Dong-seok Shin

引用次数: 0

Abstract

The natural weathered sand of basalt (WSB) has been used for the removal of cadmium from aqueous solution. The influence of various parameters i.e., contact time, pH, weathered sand of basalt dosage, particle size of the weathered sand of basalt, temperature and initial cadmium concentration were analyzed. Cadmium adsorption kinetics was well described by the pseudo second order model. Adsorption equilibrium for cadmium was properly well fitted to Langmuir isotherm model with maximum adsorption capacity 0.50 mg/g. Compared with the other experimental results using various kinds of adsorbents at a low concentration (1.0 mg/L or so) similar to that of this study, the cadmium removal efficiency using weathered sand of basalt was higher. It has been demonstrated that weathered sand of basalt has a available alternative adsorbent for cadmium when its initial concentration is low.

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玄武岩风化砂去除低浓度镉

玄武岩天然风化砂（WSB）已被用于去除水溶液中的镉。分析了接触时间、pH值、玄武岩风化砂用量、玄武岩风化沙粒径、温度和初始镉浓度等参数的影响。用拟二阶模型很好地描述了镉的吸附动力学。镉的吸附平衡符合Langmuir等温线模型，最大吸附量为0.50mg/g。与其他类似于本研究的低浓度（1.0mg/L左右）使用各种吸附剂的实验结果相比，使用玄武岩风化砂的镉去除效率更高。研究表明，玄武岩风化砂在初始浓度较低时，对镉有一种可用的替代吸附剂。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Membrane Water Treatment ENGINEERING, CHEMICAL-WATER RESOURCES

CiteScore

1.90

自引率

30.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Membrane and Water Treatment(MWT), An International Journal, aims at opening an access to the valuable source of technical information and providing an excellent publication channel for the global community of researchers in Membrane and Water Treatment related area. Specific emphasis of the journal may include but not limited to; the engineering and scientific aspects of understanding the basic mechanisms and applying membranes for water and waste water treatment, such as transport phenomena, surface characteristics, fouling, scaling, desalination, membrane bioreactors, water reuse, and system optimization.