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
收藏
页码：6072 / 6080
页数：9
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