Immobilization of heavy metals by modified bentonite coupled coagulation/flocculation process in the presence of a biological flocculant

被引：8

作者：

Ferhat, Mourad ^{[1
,2
,3
,4
]}

Kadouche, Slimane ^{[1
]}

Lounici, Hakim ^{[3
,4
]}

机构：

[1] Univ Tizi Ouzou, Dept Chem, Fac Sci, Tizi Ouzou, Algeria

[2] Sci & Tech Res Ctr Physicochem Anal, Unit Anal & Technol Dev Environm, Bou Ismail 42004, Tipaza, Algeria

[3] Polytech Natl Sch Algiers, Lab URIE, Algiers, Algeria

[4] Univ Bouira, Dept Chem, Bouira, Algeria

来源：

DESALINATION AND WATER TREATMENT | 2016年 / 57卷 / 13期

关键词：

Bioflocculant; Heavy metals; Multiple adsorptions; Modified bentonite; Turbidity; AQUEOUS-SOLUTIONS; ADSORPTION; CHITOSAN; MONTMORILLONITE; REMOVAL; NICKEL; COBALT; ZINC; COAGULATION; RETENTION;

D O I：

10.1080/19443994.2015.1012559

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Nanometer sized and sheet-like bentonites play an important role in the removal of metal ions from contaminated water. They exist everywhere in nature and can develop a good and less expensive alternative in wastewater cleanup containing heavy metals. However, their use may generate turbid suspensions difficult to settle. Therefore, a coupling of adsorption on natural material was chosen. A modified Algerian bentonite in coagulation/flocculation processes was used with a biological flocculant obtained from waste recovery of fishery products. The results demonstrate that the modified bentonite has a very high adsorption capacity. The treatment efficiency was evaluated by measuring turbidity. The removal rate was observed around 99%.

引用

页码：6072 / 6080

页数：9

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