Characteristics of new coccine dye adsorption onto digested sludge particulates

C. H. Weng; E. E. Chang; P. C. Chiang

doi:10.2166/wst.2001.0641

Characteristics of new coccine dye adsorption onto digested sludge particulates

C. H. Weng, E. E. Chang, P. C. Chiang

Department of Biochemistry and Molecular Cell Biology

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

The adsorption characteristics of an anionic azo dye (new coccine) onto digested sludge have been studied. Results show that the dye can effectively be removed by sludge. It was found that the adsorption rate is very rapid and the equilibrium can be reached in 10 min. The adsorption kinetics can be expressed by the modified Freundlich equation. Also, the solution pH, ionic strength, and temperature are the key factors affecting the adsorption. The effect of electrical double layer thickness on the adsorption was also discussed. The adsorption standard free energy, enthalpy, and entropy were determined. The adsorption follows a nonlinear multilayer adsorption isotherm. The specific surface area of sludge was determined as 82-150m²/g on the basis of its monolayer dye adsorption capacity.

Original language	English
Pages (from-to)	279-284
Number of pages	6
Journal	Water Science and Technology
Volume	44
Issue number	10
DOIs	https://doi.org/10.2166/wst.2001.0641
Publication status	Published - 2001

Keywords

Adsorption
Dye
Sludge
Specific surface area

ASJC Scopus subject areas

Water Science and Technology

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10.2166/wst.2001.0641

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title = "Characteristics of new coccine dye adsorption onto digested sludge particulates",

abstract = "The adsorption characteristics of an anionic azo dye (new coccine) onto digested sludge have been studied. Results show that the dye can effectively be removed by sludge. It was found that the adsorption rate is very rapid and the equilibrium can be reached in 10 min. The adsorption kinetics can be expressed by the modified Freundlich equation. Also, the solution pH, ionic strength, and temperature are the key factors affecting the adsorption. The effect of electrical double layer thickness on the adsorption was also discussed. The adsorption standard free energy, enthalpy, and entropy were determined. The adsorption follows a nonlinear multilayer adsorption isotherm. The specific surface area of sludge was determined as 82-150m2/g on the basis of its monolayer dye adsorption capacity.",

keywords = "Adsorption, Dye, Sludge, Specific surface area",

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T1 - Characteristics of new coccine dye adsorption onto digested sludge particulates

AU - Weng, C. H.

AU - Chang, E. E.

AU - Chiang, P. C.

PY - 2001

Y1 - 2001

N2 - The adsorption characteristics of an anionic azo dye (new coccine) onto digested sludge have been studied. Results show that the dye can effectively be removed by sludge. It was found that the adsorption rate is very rapid and the equilibrium can be reached in 10 min. The adsorption kinetics can be expressed by the modified Freundlich equation. Also, the solution pH, ionic strength, and temperature are the key factors affecting the adsorption. The effect of electrical double layer thickness on the adsorption was also discussed. The adsorption standard free energy, enthalpy, and entropy were determined. The adsorption follows a nonlinear multilayer adsorption isotherm. The specific surface area of sludge was determined as 82-150m2/g on the basis of its monolayer dye adsorption capacity.

AB - The adsorption characteristics of an anionic azo dye (new coccine) onto digested sludge have been studied. Results show that the dye can effectively be removed by sludge. It was found that the adsorption rate is very rapid and the equilibrium can be reached in 10 min. The adsorption kinetics can be expressed by the modified Freundlich equation. Also, the solution pH, ionic strength, and temperature are the key factors affecting the adsorption. The effect of electrical double layer thickness on the adsorption was also discussed. The adsorption standard free energy, enthalpy, and entropy were determined. The adsorption follows a nonlinear multilayer adsorption isotherm. The specific surface area of sludge was determined as 82-150m2/g on the basis of its monolayer dye adsorption capacity.

KW - Adsorption

KW - Dye

KW - Sludge

KW - Specific surface area

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EP - 284

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Characteristics of new coccine dye adsorption onto digested sludge particulates

Abstract

Keywords

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