One of the primary sources of environmental contamination is the textile industry, which releases a lot of wastewater that contains dyes. Because textile dye effluents contain complex synthetic colors that are hard to break down, they can have negative effects on the environment and human health when released into natural water bodies. Conventional physical and chemical treatment methods are sometimes expensive and can result in secondary pollutants. Microbial bioremediation has therefore emerged as a practical, economical, and ecologically acceptable method of treating textile dye effluents.

Microbial bioremediation has therefore emerged as a practical, economical, and ecologically acceptable method of treating textile dye effluents. In microbial bioremediation, pigments present in wastewater are removed or broken down by microorganisms such as bacteria, fungi, and algae. These bacteria decolorize textile colors by a number of methods, including biosorption, biodegradation, and enzymatic degradation. Enzymes like azoreductase, laccase, and peroxidase break down complex color molecules into simpler, less dangerous compounds. Microbial species that have shown significant promise for dye decolorization include Pseudomonas, Bacillus, Aspergillus, and Phanerochaete chrysosporium. Numerous environmental factors, such as pH, temperature, dye concentration, oxygen availability, and nutrient delivery, affect how well microbial dye degradation works. Both aerobic and anaerobic treatment techniques can successfully decolorize textile effluents. Microbial treatment reduces the toxicity, chemical oxygen demand (COD), and biological oxygen demand (BOD) of wastewater in addition to removing color. Microbial bioremediation is therefore an environmentally beneficial and sustainable way to treat textile dye effluents and is essential for reducing industrial pollution and protecting aquatic habitats. In this scenario, attempts are made to isolate and examine microorganisms that break down dyes.