Bioremediation of dyes

1. VIVEKANANDHA ARTS AND SCIENCE COLLEGE
FOR WOMEN,
VEERACHIPALAYAM,SANGAKIRI,SALEM,TAMIL NADU
DEPARTMENT OF MICROBIOLOGY
BIOREMEDIATIONS OF DYES
SUBJECT: BIOREMEDIATIONS
Presented by:
M.Bowsiya
1st M.SC., Microbiology
Department of Microbiology
Vivekanandha Arts And Science For Women,
Sankagiri , Salem, Tamilnadu.

2. Content:
*Introduction
*Bioremediations
*Introduction of Bioremediations
dyes
*Types
*Azo dyes
*Bioremediations of Textile dyes
*Conclusion

3. Bioremediation refers to the process of using microorganisms to remove the
environmental pollutants or prevent pollution.
The removal of organic wastes by microbes for environmental clean-up is the essence
of bioremediation.
The other names used for bioremediation are biotreatment, bioreclamation and
biorestoration.
Xenobiotics broadly refer to the unnatural, foreign and synthetic chemicals such as
pesticide, herbicide & other organic compounds.
Introduction of Bioremediations

6. Bioremediation of dyes is a fascinating approach to treat the textile effluents as it offers many
advantages over the conventional treatment techniques. This review critically evaluates the
latest advancements in applications of bioremediation techniques for the removal of various
dyes from wastewater.
Introduction
Bioremediations of dyes:

7. Dyes can be divided into numerous categories based on their origin, color, structure and
application methods [5,9,26]. Based on the origin, dyes may be organic or synthetic, while
based on chemical structure, dyes can be classified into anthraquinone, azin, acridine,
chromophoric, and nitroso dyes. Classification of dyes based on the applications includes
dispersive dyes, azoic colors, and vat dyes. Dyes may also be classified based on their
particle charge upon dissolution in water.i.e….
Classification of dyes:

8. AZO dyes:

12. Bioremediations of Textile dyes:
Textile dyes are decolorized by microorganisms in two major ways,
either adsorption on microbial biomass or biodegradation of dyes by
the cells or enzymes. The use of biomass is particularly useful if the
effluent is highly toxic and does not support the growth and
maintenance of microbial cells.