The removal of dye colours from aqueous solutions by adsorption on low- cost materials

G. McKay; J. F. Porter; G. R. Prasad

doi:10.1023/A:1005197308228

The removal of dye colours from aqueous solutions by adsorption on low- cost materials

G. McKay^*, J. F. Porter, G. R. Prasad

^*Corresponding author for this work

Hong Kong University of Science and Technology

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

429 Citations (Scopus)

Abstract

The ability of five low cost adsorbents - rice husk, cotton, bark, hair and coal - to adsorb two basic dyes, namely, Safranine and Methylene Blue, has been studied. Equilibrium isotherms have been determined and analysed using the Langmuir equations. The monolayer saturation capacities for Safranine are 1119, 838, 875, 190 and 120 mg g^-1 adsorbent and for Methylene Blue are 914, 312, 277, 158 and 250 mg g^-1 adsorbent for bark, rice husk, cotton waste, hair and coal respectively. A limited number of fixed bed column studies have been performed and the bed depth service time for each dye-adsorbent system has been determined.

Original language	English
Pages (from-to)	423-438
Number of pages	16
Journal	Water, Air, and Soil Pollution
Volume	114
Issue number	3-4
DOIs	https://doi.org/10.1023/A:1005197308228
Publication status	Published - Sept 1999
Externally published	Yes

Keywords

Dye sorption
Equilibrium isotherms
Fixed bed
Low-cost sorbents

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abstract = "The ability of five low cost adsorbents - rice husk, cotton, bark, hair and coal - to adsorb two basic dyes, namely, Safranine and Methylene Blue, has been studied. Equilibrium isotherms have been determined and analysed using the Langmuir equations. The monolayer saturation capacities for Safranine are 1119, 838, 875, 190 and 120 mg g-1 adsorbent and for Methylene Blue are 914, 312, 277, 158 and 250 mg g-1 adsorbent for bark, rice husk, cotton waste, hair and coal respectively. A limited number of fixed bed column studies have been performed and the bed depth service time for each dye-adsorbent system has been determined.",

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AU - Porter, J. F.

AU - Prasad, G. R.

PY - 1999/9

Y1 - 1999/9

N2 - The ability of five low cost adsorbents - rice husk, cotton, bark, hair and coal - to adsorb two basic dyes, namely, Safranine and Methylene Blue, has been studied. Equilibrium isotherms have been determined and analysed using the Langmuir equations. The monolayer saturation capacities for Safranine are 1119, 838, 875, 190 and 120 mg g-1 adsorbent and for Methylene Blue are 914, 312, 277, 158 and 250 mg g-1 adsorbent for bark, rice husk, cotton waste, hair and coal respectively. A limited number of fixed bed column studies have been performed and the bed depth service time for each dye-adsorbent system has been determined.

AB - The ability of five low cost adsorbents - rice husk, cotton, bark, hair and coal - to adsorb two basic dyes, namely, Safranine and Methylene Blue, has been studied. Equilibrium isotherms have been determined and analysed using the Langmuir equations. The monolayer saturation capacities for Safranine are 1119, 838, 875, 190 and 120 mg g-1 adsorbent and for Methylene Blue are 914, 312, 277, 158 and 250 mg g-1 adsorbent for bark, rice husk, cotton waste, hair and coal respectively. A limited number of fixed bed column studies have been performed and the bed depth service time for each dye-adsorbent system has been determined.

KW - Dye sorption

KW - Equilibrium isotherms

KW - Fixed bed

KW - Low-cost sorbents

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DO - 10.1023/A:1005197308228

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JO - Water, Air, and Soil Pollution

JF - Water, Air, and Soil Pollution

IS - 3-4

ER -

The removal of dye colours from aqueous solutions by adsorption on low- cost materials

Abstract

Keywords

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