Evans blue removal from wastewater by rarasaponin-bentonite

被引：16

作者：

Chandra, I. K. ^{[1
,2
]}

Ju, Y. -H. ^{[1
]}

Ayucitra, A. ^{[2
]}

Ismadji, S. ^{[2
]}

机构：

[1] Natl Taiwan Univ Sci & Technol, Dept Chem Engn, Taipei 106, Taiwan

[2] Widya Mandala Surabaya Catholic Univ, Dept Chem Engn, Surabaya 60114, Indonesia

来源：

INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY | 2013年 / 10卷 / 02期

关键词：

Bentonite; Modification; Adsorption; Rarasaponin; HEAVY-METALS; BIOSORPTION; ADSORPTION; SORPTION;

D O I：

10.1007/s13762-012-0114-y

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The feasibility of natural bentonite and rarasaponin-bentonite for Evans blue removal from aqueous solution was studied. Rarasaponin is a natural surfactant obtained from Sapindus rarak DC was used as modifying agent for natural bentonite modification. Adsorption experiments were conducted in a batch system at various temperatures. Several temperature-dependent isotherm models (Langmuir, Freundlich, Sips and Toth) were used to represent equilibrium data. It was found that Toth model represents the adsorption equilibrium data better than other models. Kinetic data were best represented by the pseudo-first order model. The controlling mechanism of the adsorption of Evans blue onto natural bentonite and rarasaponin-bentonite was physical adsorption.

引用

页码：359 / 370

页数：12

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