Microbial biodegradation of recalcitrant synthetic dyes from textile-enriched wastewater by Fusarium oxysporum

The present study reported the improvement of biological treatment for the removal of recalcitrant dyes including aniline blue, reactive black 5, orange II, and crystal violet in contaminated water. The biodegradation efficiency of Fusarium oxysporum was significantly enhanced by the addition of med...

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Published in:Chemosphere (Oxford) 2023-06, Vol.325, p.138392-138392, Article 138392
Main Authors: Thoa, Le Thi Kim, Thao, Trinh Thi Phuong, Nguyen-Thi, My-Le, Chung, Nguyen Duc, Ooi, Chien Wei, Park, Seung-Moon, Lan, Tran Thuy, Quang, Hoang Tan, Khoo, Kuan Shiong, Show, Pau Loke, Huy, Nguyen Duc
Format: Article
Language:English
Subjects:
Biodegradation, Environmental
Bioremediation
Coloring Agents - chemistry
Dye
Fusarium oxysporum
Gentian Violet
Laccase
Laccase - metabolism
Textiles
Waste water treatment
Wastewater
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Summary:The present study reported the improvement of biological treatment for the removal of recalcitrant dyes including aniline blue, reactive black 5, orange II, and crystal violet in contaminated water. The biodegradation efficiency of Fusarium oxysporum was significantly enhanced by the addition of mediators and by adjusting the biomass density and nutrient composition. A supplementation of 1% glucose in culture medium improved the biodegradation efficiency of aniline blue, reactive black 5, orange II, and crystal violet by 2.24, 1.51, 4.46, and 2.1 folds, respectively. Meanwhile, the addition of mediators to culture medium significantly increased the percentages of total removal for aniline blue, reactive black 5, orange II, and crystal violet, reaching 86.07%, 68.29%, 76.35%, and 95.3%, respectively. Interestingly, the fungal culture supplemented with 1% remazol brilliant blue R boosted the biodegradation up to 97.06%, 89.86%, 91.38%, and 86.67% for aniline blue, reactive black 5, orange II, and crystal violet, respectively. Under optimal culture conditions, the fungal culture could degrade these synthetic dyes concentration up to 104 mg/L. The present study demonstrated that different recalcitrant dye types can be efficiently degraded using microorganism such as F. oxysporum. [Display omitted] •Biodegradation of recalcitrant synthetic dyes increased up to 4.46 folds.•RBBR boosted the biodegradation up to 97.06% for aniline blue.•1-HBT was the best mediator for crystal violet biodegradation.•Biodegradation method could remediate different classes of dye up to 104 mg/L.
ISSN:0045-6535
1879-1298
DOI:10.1016/j.chemosphere.2023.138392