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Decolorization of dye wastewaters by biosorbents: A review
October 2010
October 2010
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Abstract
Dye wastewater is one of the most difficult to treat. There has been exhaustive research
on biosorption of dye wastewater. It is evolving as an attractive option to supplement
conventional treatment processes. This paper examines various biosorbents such as
fungi, bacteria, algae, chitosan and peat, which are capable of decolorizing dye wastewaters;
discusses various mechanism involved, the effects of various factors influencing dye
wastewater decolorization and reviews pretreatment methods for increasing the biosorption
capacity of the adsorbents. The paper examines the mismatch between strong scientific
progress in the field of biosorption and lack of commercialization of research.
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