Heavy metal removal from industrial effluents by sorption on cross-linked starch: Chemical study and impact on water toxicity

被引：52

作者：

Sancey, Bertrand ^{[1
]}

Trunfio, Giuseppe ^{[1
]}

Charles, Jeremie ^{[1
]}

Minary, Jean-Francois ^{[2
]}

Gavoille, Sophie ^{[3
]}

Badot, Pierre-Marie ^{[1
]}

Crini, Gregorio ^{[1
]}

机构：

[1] Univ Franche Comte, UMR UFC CNRS Usc INRA 6249, F-25030 Besancon, France

[2] Zone Ind Devecey, Zindel Traitement Surface, F-25870 Devecey, France

[3] Agence Eau Rhone Mediterranee Corse, F-25000 Besancon, France

来源：

JOURNAL OF ENVIRONMENTAL MANAGEMENT | 2011年 / 92卷 / 03期

关键词：

Sorption; Metal; Starch; Removal; Industrial effluents; Germination rate; AMPHOTERIC STARCH; ACTIVATED CARBON; AQUEOUS-SOLUTION; DYE REMOVAL; ADSORPTION; BIOSORPTION; ADSORBENTS; PB(II);

D O I：

10.1016/j.jenvman.2010.10.033

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Batch sorption experiments using a starch-based sorbent were carried out for the removal of heavy metals present in industrial water discharges. The influence of contact time, mass of sorbent and pollutant load was investigated. Pollutant removal was dependent on the mass of sorbent and contact time, but independent of the contaminant load. The process was uniform, rapid and efficient. Sorption reached equilibrium in 60 min irrespective of the metal considered (e.g. Zn, Pb, Cu, Ni, Fe and Cd), reducing concentrations below those permitted by law. The material also removed residual turbidity and led to a significant decrease in the residual chemical oxygen demand (COD) present in the industrial water discharge. The germination success of lettuce (Lactuca sativa) was used as a laboratory indicator of phytotoxicity. The results show that the sorption using a starch-based sorbent as non-conventional material, is a viable alternative for treating industrial wastewaters. (c) 2010 Elsevier Ltd. All rights reserved.

引用

页码：765 / 772

页数：8

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