Efficacy and field applicability of Burmese grape leaf extract (BGLE) for cadmium removal: An implication of metal removal from natural water

被引：36

作者：

Borah, Rinkumoni ^{[1
]}

Kumari, Deepa ^{[2
]}

Gogoi, Anindita ^{[1
]}

Biswas, Sunayana ^{[1
]}

Goswami, Ritusmita ^{[1
]}

Shim, Jaehong ^{[3
]}

Begum, Naznin Ara ^{[2
]}

Kumar, Manish ^{[1
,4
]}

机构：

[1] Tezpur Univ, Dept Environm Sci, Napaam 784028, Assam, India

[2] Visva Bharati Univ, Dept Chem, Santini Ketan 731235, W Bengal, India

[3] Univ Nebraska, Sch Nat Resources, Lincoln, NE 68583 USA

[4] Indian Inst Technol, Discipline Earth Sci, Gandhinagar 382355, Gujarat, India

来源：

ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY | 2018年 / 147卷

关键词：

Burmese grape leaf extract (BGLE); Cadmium; Adsorption; Kinetics; Isotherms; DIFFERENT PYROLYTIC TEMPERATURES; LOW-COST ADSORBENT; AQUEOUS-SOLUTION; HEAVY-METALS; SEQUENTIAL EXTRACTION; SOAKAWAY SEDIMENT; ISOTOPIC EXCHANGE; WASTE-WATER; ADSORPTION; EQUILIBRIUM;

D O I：

10.1016/j.ecoenv.2017.09.002

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Burmese Grape Leaf Extract (BGLE), a low cost adsorbent was studied for cadmium (Cd(II)) removal from metal solutions and natural water samples. Batch adsorption studies were carried out to examine the influence of contact time and initial metal concentration after characterization under scanning electron microscopy (SEM). Cd(II)adsorptiononto BGLE was best explained by pseudo-second order kinetics (R-2 = 0.99) and best fitted with Langmuir isotherm model (R-2 = 0.76). Beside the selective adsorption activity of BGLE towards Cd(II), only 0.1 g of BGLE have shown effective adsorption of these ions with a maximum adsorption capacity (q(m)) of 44.72 mg g(-1). This study was a unique combination of laboratory experiments and field implication. Study indicates that same efficacy cannot be obtained in natural water samples as obtained in the case of laboratory due to the interference of major ions in water.

引用

页码：585 / 593

页数：9

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