Adsorption of methyl red by water-hyacinth (Eichornia crassipes) biomass

被引：15

作者：

Tarawou, Temi

Horsfall, Michael, Jr.

Vicente, Jose L.

机构：

[1] Univ Port Harcourt, Dept Pure & Ind Chem, Port Harcourt, Nigeria

[2] Natl Univ La Plata, Fac Ciencias Exactas, Inst Invest Fisicoquim Teor & Aplicadas, RA-1900 La Plata, Argentina

来源：

CHEMISTRY & BIODIVERSITY | 2007年 / 4卷 / 09期

关键词：

D O I：

10.1002/cbdv.200790182

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The surface characteristics and adsorbent properties of biomass, obtained from low-cost and environmentally problematic water hyacinth. were determined. Optimum conditions for the elimination of the industrial dye Methyl Red (1) from aqueous solution were established by means of a batch adsorption technique. The ultimate adsorption capacity of water-hyacinth biomass in terms of the elimination of 1 was calculated from a Langmuir-type isotherm as 8.85 x 10(-2) mol g(-1) at 30 degrees and at an optimum solution pH of 8.0. Dye elimination was found to be associated with strong electrostatic forces (physisorption). the overall process being slightly endergonic (Delta G>0). Our study shows that water hyacinth has a great potential of removing color from wastewater and other dye-polluted aquatic systems.

引用

页码：2236 / 2245

页数：10

共 15 条

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Alam M. Z., 2004, Biotechnology, V3, P200

[2]

HILL G, 1997, P 1 M INT WAT HYAC C, P18

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