Removal of Reactive Red 198 from aqueous solution by Potamogeton crispus

被引：67

作者：

Gulnaz, Osman ^{[1
]}

Sahmurova, Aida ^{[2
]}

Kama, Suayip ^{[1
]}

机构：

[1] Cukurova Univ, Dept Sci & Technol Educ, TR-01330 Balcah Adana, Turkey

[2] Okan Univ, Dept Environm Sci, TR-34959 Akfirat, Tuzla Istanbul, Turkey

来源：

CHEMICAL ENGINEERING JOURNAL | 2011年 / 174卷 / 2-3期

关键词：

Potamogeton crispus; Adsorption; Kinetics; Reactive Red 198; DRIED ACTIVATED-SLUDGE; MALACHITE GREEN; DYE ADSORPTION; AZO-DYE; BIOSORPTION; EQUILIBRIUM; KINETICS; SORPTION; BLUE; DECOLORIZATION;

D O I：

10.1016/j.cej.2011.09.061

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Native, acid and alkali pretreated dried Potamogeton crispus (P. crispus) was used for adsorption of Reactive Red 198 from aqueous solution. Effects of physicochemical environment on adsorption were investigated. The surface charge of the native, acid and alkali treated biomass were determined to be zero at pH 4.6, 3.8 and 4.1 +/- 0.1, respectively. Adsorption capacity of native biomass was increased with alkali treatment against native and acid pretreated biomass. The maximum adsorption capacities (q(max)) at 20 degrees C of native. acid and alkali pretreated biomass were determined as 14.3, 26.8 and 44.2 mg g(-1), respectively. FT-IR analysis shows that P. crispus has many functional groups such as COO, S=O, C-N, N-H. These functional groups can react with dye molecule in solution. Pseudo-second-order and intraparticle diffusion kinetic models are applicable adsorption of RR198 by P. crispus since adsorption of RR198 is complex and involves more than one mechanism. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：579 / 585

页数：7

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