Abstract

English

Highlights

  • Introduction The textile industry inIndia is one of the oldest industries

  • Decolourisation is a challenging process for both textile industry and wastewater treatment, the result of these findings and literature suggests a great potential for such bacteria to be used to decolourise dye wastewaters

  • Isolation of Reactive Black dye resistant and decolourising bacteria Soil samples were used as inoculum and 1 g of soil was added into 50 ml of sterile modified base mineral medium (BMM) in flasks and Reactive Black was added as the sole carbon source to give a final concentration of 30 mg/L

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Summary

Introduction

Introduction The textile industry inIndia is one of the oldest industries. It provides direct employment to nearly thirty million people. The wastewater from a typical textile industry is characterised by high values of BOD, COD, colour and pH3,4. It is a complex and highly variable mixture of many polluting substances ranging from inorganic compounds and elements to polymers and organic ­products[5]. The high alkalinity and traces of chromium, which is employed in dyes adversely affect the aquatic life and interfere with the biological treatment processes[7] It induces persistent colour coupled with organic load leading to disruption of the total ecological/symbiotic balance of the receiving water stream[8]. The dyes are stable to light, heat and oxidizing agents, and it is difficult to remove the dyes from effluents

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