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Study on Removal of Heavy Metal Ions (Pb 2+ , Cd 2+ and Cu 2+ ) by Coriandrum sativum (Coriander)
Journal of Water Chemistry and Technology ( IF 0.6 ) Pub Date : 2020-08-03 , DOI: 10.3103/s1063455x20030029
A. Bahloul , H. Zouaoui , A. Diafat , A. Meribai , Y. Noufel , M. Derrardja , B. Nessark

Abstract

The removal of metallic trace elements from our environment especially in wastewater is now shifting from the use of conventional adsorbents to the use of biosorbents materials which have a big potential application in environmental control and metal recovery operations. It can be considered as an alternative green technology which has been proved as more efficient and economical for metallic trace elements. In this work, we propose to test the ability of Coriandrum sativum (Coriander) seeds in the elimination of metallic trace elements (Pb2+, Cd2+, and Cu2+) in water. This study was carried out by electrochemical (differential pulse polarography) and spectroscopic characterization (fourier-transform infrared, FTIR). The Coriandrum sativum seeds are powdered and added with different weight (0.1, 0.2, 0.4, 1, and 2 g) to different solutions containing Pb2+, Cd2+, or Cu2+ (20 ppm), after filtration with filter paper, all solutions were analyzed by differential pulse polarography technic (DPP) with a dropping mercury electrode (HMDE). The obtained results had shown a significant ability in removing, which achieved a removal efficiency of the 98.05% of Pb2+, 98.1% of Cd2+ and 87% of Cu2+ at 2 g of optimal mass of Coriandrum sativum powder. The obtained results indicate that the Coriandrum sativum is a good support for elimination of toxic metals. The metallic trace elements Pb2+, Cd2+, and Cu2+ are mainly interacted by the chelation between metallic ions and the carboxylate anion as the conjugate base of a carboxylic acid in Coriandrum sativum particles.


中文翻译:

ian(Coriander)去除重金属离子(Pb 2+,Cd 2+和Cu 2+)的研究

摘要

从我们的环境中,特别是废水中去除金属微量元素,现在已从使用常规吸附剂转向使用生物吸附剂材料,这些材料在环境控制和金属回收作业中具有很大的潜在应用价值。可以将其视为一种替代的绿色技术,已被证明对于金属微量元素更为有效和经济。在这项工作中,我们提出要测试的能力芫荽(香菜)在消除金属微量元素(铅种子2+,镉2+和Cu 2+在水中)。这项研究是通过电化学(微分脉冲极谱法)和光谱表征(傅里叶变换红外,FTIR)进行的。的用滤纸过滤后,将sa仁种子制成粉末,并以不同的重量(0.1、0.2、0.4、1和2 g)添加到含有Pb 2 +,Cd 2+或Cu 2+(20 ppm)的不同溶液中,所有溶液均采用差动脉冲极谱技术(DPP)和滴汞电极(HMDE)进行分析。所获得的结果显示出显着的去除能力,在2g最佳质量的香菜粉末中,去除效率达到了98.05%的Pb 2 +,98.1%的Cd 2+和87%的Cu 2+。获得的结果表明,Cor是消除有毒金属的良好支持。金属痕量元素Pb 2 +,Cd 2+和Cu 2+主要通过金属离子与作为阴离子的香菜颗粒中羧酸的共轭碱羧酸根阴离子之间的螯合作用。
更新日期:2020-08-03
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