Biosorption of reactive dyes by dried activated sludge: equilibrium and kinetic modelling

The biosorption of reactive dyes (Reactive Blue 2 — RB2 and Reactive Yellow 2 — RY2) onto dried activated sludge was investigated. The dye binding capacity of biosorbent was shown as a function of initial pH, initial dye concentration and type of dye. The equilibrium data fitted very well to both th...

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Veröffentlicht in:	Biochemical engineering journal 2001, Vol.7 (1), p.79-84
1. Verfasser:	Aksu, Zümriye
Format:	Artikel
Sprache:	eng
Schlagworte:	Biological and medical sciences Biological treatment of waters Biosorption Biotechnology Dried activated sludge Environment and pollution Fundamental and applied biological sciences. Psychology Industrial applications and implications. Economical aspects Reactive dyes
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Zusammenfassung:	The biosorption of reactive dyes (Reactive Blue 2 — RB2 and Reactive Yellow 2 — RY2) onto dried activated sludge was investigated. The dye binding capacity of biosorbent was shown as a function of initial pH, initial dye concentration and type of dye. The equilibrium data fitted very well to both the Freundlich and Langmuir adsorption models. The results showed that both the dyes uptake processes followed the second-order rate expression.
ISSN:	1369-703X 1873-295X
DOI:	10.1016/S1369-703X(00)00098-X