荧光镜贝壳粉吸附剂去除废水中的Cr（VI）和Cu（II）

IF 0.5 Q4 ENGINEERING, ENVIRONMENTAL

International Journal of Environmental Technology and Management Pub Date : 2019-08-02 DOI:10.1504/IJETM.2019.101391

Yanhong Xu, Guangrong Huang

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引用次数: 1

摘要

评价了扇贝壳粉对水体中Cr（VI）和Cu（II）离子的去除能力。对Cu（II）的吸附效率很高，约为99.04%，而对Cr（VI）的吸附率不高于24.03%。Cr（VI。实验结果表明，在pH为3、初始Cr（VI）浓度为200mg/L的壳粉酸化条件下，用盐酸和300°C煅烧以促进吸附，在1.5小时内Cr（Ⅵ）的最佳吸收率为32.86%。采用Langmuir和Freundlich模型对Cr（VI）和Cu（II）的等温线数据进行了分析。Freundlich模型适用于Cr（VI）吸附，Langmuir模型适用于Cu（II）吸附。

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Removal of Cr(VI) and Cu(II) from wastewater by an Argopecten irradians shell powder adsorbent

The ability of the shell powder of Argopecten irradians to remove Cr(VI) and Cu(II) ions from aquatic systems was evaluated. The adsorption efficiency was very high for Cu(II), at approximately 99.04%, while for Cr(VI), it was not higher than 24.03%. The adsorption rate of Cr(VI) was affected by the pH, feeding amount, stirring time, calcination temperature and initial Cr(VI) ion concentration. The experimental results indicate that the optimal Cr(VI) absorption rate was 32.86% of Cr(VI) within 1.5 h at a pH of 3 and a 200 mg/L initial Cr(VI) concentration on shell powder acidifie, using hydrochloric acid and calcination at 300°C to promote adsorption. Langmuir and Freundlich models were used to analyse the isotherm data of Cr(VI) and Cu(II). The Freundlich model was suited to Cr(VI) adsorption, while the Langmuir model fit Cu(II) adsorption.

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来源期刊

International Journal of Environmental Technology and Management ENGINEERING, ENVIRONMENTAL-

CiteScore

1.00

自引率

0.00%

发文量

期刊介绍： IJETM is a refereed and authoritative source of information in the field of environmental technology and management. Together with its sister publications IJEP and IJGEnvI, it provides a comprehensive coverage of environmental issues. It deals with the shorter-term, covering both engineering/technical and management solutions.