Mechanism and Techniques of Dye Removal by Microflora

Singh, Bishal; Christina, Evangeline

doi:10.1007/978-981-16-5932-4_4

Cited by 1 publication

(3 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There was a notable difference between NMR spectra of the original dye (brown 703) and after degradation by the bacterial strain Pseudomonas aeruginosa. Figure 12a,b show the 1 H NMR and 13 C NMR results of the original brown 703 dye. After Pseudomonas aeruginosa degradation of brown 703 and the isolation of metabolites, the mixture was subjected to column chromatography in order to separate the metabolites based on their sizes/polarities, which were then studied via NMR.…”

Section: Brown 703 Dye Nmr Spectra Of Metabolitesmentioning

confidence: 99%

“…The Pseudomonas aeruginosa bacteria contained the azoreductase enzyme which breaks the -N=N-bond under aerobic and anaerobic situations. As a consequence, two substituted benzene-based derivatives are Brown 703 dye 13 C NMR revealed two types of peaks: aliphatic methyl carbon and aromatic carbon. Aliphatic methyl carbon was ascribed to the peaks at 20.86 δppm, while the peaks at 125.11, 128.22, 129.92 and 136.25 δppm were ascribed to aromatic carbons.…”

Section: Proposed Mechanism Responsible For the Biodegradation Of Bro...mentioning

confidence: 99%

“…Many physiochemical methods are employed for the removal of dyes, including filtration, photo degradation, sedimentation, coagulation, adsorption, and electrolysis. However, the application of these methods is limited on an industrial scale due to their inflexibility, high cost, and generation of secondary effluents [13].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Bioremediation of Azo Dye Brown 703 by Pseudomonas aeruginosa: An Effective Treatment Technique for Dye-Polluted Wastewater

Khan

Zahoor

Rehman

et al. 2023

Microbiology Research

View full text Add to dashboard Cite

Dye-polluted wastewater poses a serious threat to humans’, animals’ and plants’ health, and to avoid these health risks in the future, the treatment of wastewater containing dyes is necessary before its release to environment. Herein, a biological approach is used; the textile azo dye brown 703 is degraded utilizing Pseudomonas aeruginosa. The bacterial strain was isolated from textile wastewater dumping sites in Mingora, Swat. The optimization for bacterial degradation was carried out on the nutrient broth medium, which was then subjected to a variety of environmental physicochemical conditions and nutritional source supplementation before being tested. Under micro-aerophilic circumstances, the maximum decolorization and degradation of dye occurred at a 20 ppm dye concentration within 3 days of incubation at a neutral pH and 38 °C. The decrease in the intensity of the absorbance peak in the UV–Vis spectrum was used to measure the extent of decolorization. Initially, 15 bacterial strains were isolated from the textile effluent. Out of these strains, Pseudomonas aeruginosa was found to be the most potent degrading bacteria, with a degradation extent of around 71.36% at optimum conditions. The appearance and disappearance of some new peaks in the FT-IR analysis after the degradation of brown 703 showed that the dye was degraded by Pseudomonas aeruginosa. The GC–MS analysis performed helped in identifying the degraded compounds of azo dye that were utilized in illustrating the under-study process of brown 703 degradation. The biodegradation brought about by Pseudomonas aeruginosa can be employed successfully in the future as an eco-friendly approach with far reaching results.

show abstract

Section: Brown 703 Dye Nmr Spectra Of Metabolitesmentioning

confidence: 99%

Section: Proposed Mechanism Responsible For the Biodegradation Of Bro...mentioning

confidence: 99%