Development of biochar and chitosan blend for heavy metals uptake from synthetic and industrial wastewater

被引：52

作者：

Hussain A. ^{[1
]}

Maitra J. ^{[2
]}

Khan K.A. ^{[3
]}

机构：

[1] Civil Engineering Department, Ch. Brahm Prakash Government Engineering College, Jaffarpur, New Delhi

[2] Department of Chemistry, School of Applied Sciences, Gautam Buddha University, Greater Noida, U.P.

[3] Civil Engineering Department, Environmental Engineering Section, School of Engineering, Gauatm Buddha University, Greater Noida, 201312, U.P.

来源：

Applied Water Science | 2017年 / 7卷 / 08期

关键词：

Adsorption; Biochar; Chitosan; Heavy metals; Membrane;

D O I：

10.1007/s13201-017-0604-7

中图分类号：

学科分类号：

摘要：

Heavy metals are usually released into water bodies from industrial/domestic effluents such as metal plating industries, mining and tanneries. Adsorption is a fundamental process in the physiochemical treatment of wastewaters because of its low cost. Great efforts have been made to use the economically efficient and unconventional adsorbents to adsorb heavy metals from aqueous solutions, such as plant wastes and agricultural waste. Biochar mixed with chitosan after crosslinking can be casted into membranes, beads and solutions which can be effectively utilized as an adsorbent for metal ion uptake. Keeping these facts into consideration, the present study was undertaken with the objective to determine the effect of various proportions of biochar-modified chitosan membranes on the sorption characteristics of different heavy metals like Cu, Pb, As and Cd along with comparison of sorption characteristics between industrial waste water samples containing multi-metals and standard synthetic stock solution containing a particular metal. It is apparent from the results that the bioadsorbent prepared from biochar and chitosan are low-cost efficacious resource due to its easy availability. It is also eco-friendly material for making adsorbent for abstraction of heavy metals from aqueous solution. This adsorbent can be best utilized for adsorption of heavy metals. © 2017, The Author(s).

引用

页码：4525 / 4537

页数：12

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