Biovision in Textile Wet Processing Industry- Technological Challenges

Today environmental consciousness is one of the major importance in the textile wet processing industries being concern. Textile industry contributes to one of the major industrial pollution problems facing the country and the pollution causing chemicals such as lime, sodium sulphide, salt, solvents, synthetic pigments etc. are arise mainly from the desizing, scouring, bleaching and dyeing processes of textile wet processing. In order to overcome the hazards caused by the chemical effluents, use of enzymes as a viable alternative has been resorted to in preparatory dyeing operations such as desizing, scouring, and bleaching treatments. This review focuses on the use of microbial enzymes as an alternate technology to the conventional methods, and highlights the importance of these enzymes in minimizing the pollution load. Environmental pollution has been a major irritant to industrial development. Also in this paper we have discussed the advantages and limitations of bio processing techniques in the various textile wet processing such as desizing, scouring, bleaching, bio polishing, bio-singeing and bio-decolouration in the dyeing effluents for cellulosic and non-cellulosic materials.