Removal of sodium lauryl sulphate by coagulation/flocculation with Moringa oleifera seed extract

被引：88

作者：

Beltran-Heredia, J. ^{[1
]}

Sanchez-Martin, J. ^{[1
]}

机构：

[1] Univ Extremadura, Dept Chem Engn & Phys Chem, E-06071 Badajoz, Spain

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2009年 / 164卷 / 2-3期

关键词：

Moringa oleifera; Anionic surfactant; Gu-Zhu model; Natural coagulant agents; Flocculation; ANIONIC SURFACTANTS; ACTIVATED CARBON; CATIONIC STARCH; NONIONIC SURFACTANTS; ADSORPTION; WATER; FLOCCULATION; COAGULATION; DERIVATIVES; INTERFACE;

D O I：

10.1016/j.jhazmat.2008.08.053

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Among other natural flocculant/coagulant agents, Moringa oleifera seed extract ability to remove an anionic surfactant has been evaluated and it has been found to be very interesting. Sodium lauryl sulphate was removed from aqueous solutions up to 80% through coagulation/flocculation process. pH and temperature were found to be not very important factors in removal efficiency. Freundlich (F), Frumkin-Fowler-Guggenheim (FFG) and Gu-Zhu (GZ) models were used to adjust experimental data in a solid-liquid adsorption hypothesis. Last one resulted to be the most accurate one. Several data fit parameters were determined, as Freundlich order, which was found to be 1.66, Flory-Huggins interaction parameter from FFG model, which was found to be 4.87; and limiting Moringa surfactant adsorption capacity from GZ model, which was found to be 2.13 x 10(-3) mol/g. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：713 / 719

页数：7

共 38 条

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