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

[21]

Hamdaoui O, 2007, ACTA CHIM SLOV, V54, P407

[22] Biosorption of heavy metals by activated sludge and their desorption characteristics [J].

Hammaini, A. ;

Gonzalez, F. ;

Ballester, A. ;

Blazquez, M. L. ;

Munoz, J. A. .

JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2007, 84 (04) :419-426

[23] The kinetics of sorption of divalent metal ions onto sphagnum moss peat [J].

Ho, YS ;

McKay, G .

WATER RESEARCH, 2000, 34 (03) :735-742

[24] Equilibrium sorption isotherm for metal ions on tree fern [J].

Ho, YS ;

Huang, CT ;

Huang, HW .

PROCESS BIOCHEMISTRY, 2002, 37 (12) :1421-1430

[25] Kinetics of pollutant sorption by biosorbents: Review [J].

Ho, YS ;

Ng, JCY ;

McKay, G .

SEPARATION AND PURIFICATION METHODS, 2000, 29 (02) :189-232

[26] Anaerobic/aerobic treatment of a simulated textile wastewater [J].

Isik, Mustafa ;

Sponza, Delia Teresa .

SEPARATION AND PURIFICATION TECHNOLOGY, 2008, 60 (01) :64-72

[27] Kinetics and mechanism of removal of methylene blue by adsorption on various carbons - a comparative study [J].

Kannan, N ;

Sundaram, MM .

DYES AND PIGMENTS, 2001, 51 (01) :25-40

[28] Effect of some pre-treatments on the adsorption of methylene blue by Balkaya lignite [J].

Karaca, S ;

Gürses, A ;

Bayrak, R .

ENERGY CONVERSION AND MANAGEMENT, 2004, 45 (11-12) :1693-1704

[29] Comparison of adsorption performances of powdered activated sludge and powdered activated carbon for removal of turquoise blue dyestuff [J].

Kargi, F ;

Ozmihci, S .

PROCESS BIOCHEMISTRY, 2005, 40 (07) :2539-2544

[30] Discoloration and detoxicification of a Congo red dye solution by means of ozone treatment for a possible water reuse [J].

Khadhraoui, M. ;

Trabelsi, H. ;

Ksibi, M. ;

Bouguerra, S. ;

Elleuch, B. .

JOURNAL OF HAZARDOUS MATERIALS, 2009, 161 (2-3) :974-981

← 1 2 3 4 5 6 →