Adsorption of basic dyes by dried waste sludge: Kinetic, equilibrium and desorption studies

被引：18

作者：

Wang, Xue Song ^{[1
]}

Lin, Hai Qing ^{[1
]}

机构：

[1] Huaihai Inst Technol, Dept Chem Engn, Lianyungang 222005, Jiangsu, Peoples R China

来源：

DESALINATION AND WATER TREATMENT | 2011年 / 29卷 / 1-3期

关键词：

Adsorption; Desorption; Kinetics; Modeling; Waste sludge; METHYLENE-BLUE; ACTIVATED-SLUDGE; AQUEOUS-SOLUTIONS; METAL-IONS; SEWAGE SLUDGES; AZO-DYE; REMOVAL; WATER; BIOSORPTION; SORPTION;

D O I：

10.5004/dwt.2011.1745

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Dried waste sludge was used as adsorbent to remove methylene blue, crystal violet and basic fuchsine using batch systems. Rate experiments were performed at various initial adsorbate concentrations, adsorbent concentration and reaction temperature. The experimental data were analyzed using several kinetic equations to determine the best-fit equation and related parameters were calculated. It was shown that the adsorption of respective dye could be best described by Ho's pseudo second order equation. The intraparticle diffusion played an important role in adsorption process. Effect of various initial adsorbent concentration and ionic strength on equilibrium was also investigated. Langmuir and Freundlich isotherms were applicable to the adsorption process and their constants were evaluated. Langmuir isotherm was found to be more suitable than Freundlich isotherm for correlation of equilibrium data. An increase in ionic strength exhibited an adverse effect on respective dye uptake. Desorption experiments showed that the loaded material could be regenerated unsatisfactorily.

引用

页码：10 / 19

页数：10

共 54 条

[1] Application of biosorption for penicillin G removal:: comparison with activated carbon [J].

Aksu, Z ;

Tunç, Ö .

PROCESS BIOCHEMISTRY, 2005, 40 (02) :831-847

[2] Kinetic models of sorption: a theoretical analysis [J].

Azizian, S .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2004, 276 (01) :47-52

[3] Evaluation of the use of raw and activated date pits as potential adsorbents for dye containing waters [J].

Banat, F ;

Al-Asheh, S ;

Al-Makhadmeh, L .

PROCESS BIOCHEMISTRY, 2003, 39 (02) :193-202

[4] Characterization of sewage sludges by primary and secondary pyrolysis [J].

Caballero, JA ;

Front, R ;

Marcilla, A ;

Conesa, JA .

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 1997, 40-1 :433-450

[5] Removal of methylene blue by invasive marine seaweed:: Caulerpa racemosa var. cylindracea [J].

Cengiz, Sevilay ;

Cavas, Levent .

BIORESOURCE TECHNOLOGY, 2008, 99 (07) :2357-2363

[6] Equilibrium and kinetic studies on the adsorption of surfactant, organic acids and dyes from water onto natural biopolymers [J].

Chang, MY ;

Juang, RS .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2005, 269 (1-3) :35-46

[7] Sorption kinetic analysis for the removal of cadmium ions from effluents using bone char [J].

Cheung, CW ;

Porter, JF ;

McKay, G .

WATER RESEARCH, 2001, 35 (03) :605-612

[8] Reuse of activated sludge biomass: I. Removal of basic dyes from wastewater by biomass [J].

Chu, HC ;

Chen, KM .

PROCESS BIOCHEMISTRY, 2002, 37 (06) :595-600

[9] Non-conventional low-cost adsorbents for dye removal: A review [J].

Crini, G .

BIORESOURCE TECHNOLOGY, 2006, 97 (09) :1061-1085

[10] Application of chitosan, a natural aminopolysaccharide, for dye removal from aqueous solutions by adsorption processes using batch studies: A review of recent literature [J].

Crini, Gregorio ;

Badot, Pierre-Marie .

PROGRESS IN POLYMER SCIENCE, 2008, 33 (04) :399-447

← 1 2 3 4 5 6 →