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Debaryomyces hansenii F39A as biosorbent for textile dye removal
Florencia Ruscasso1, Brenda Bezus1, Gabriela Garmendia2
1Centro de Investigación y Desarrollo en Fermentaciones Industriales (CINDEFI), CONICET-UNLP, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Calle 50 y 115 (1900), La Plata, Bs As, Argentina.
Revista Argentina De Microbiologia
|January 17, 2021
Summary
Antarctic yeast, Debaryomyces hansenii F39A, effectively removes toxic dyes from wastewater through biosorption. This study highlights its potential as a cost-effective alternative for dye removal processes.
Area of Science:
- Environmental Science
- Microbiology
- Biotechnology
Background:
- Industrial wastewater often contains toxic and persistent dyes.
- Effective and economical dye removal methods are crucial for environmental protection.
Purpose of the Study:
- To evaluate the biosorption capacity of Antarctic yeast Debaryomyces hansenii F39A for Reactive Blue 19 and Reactive Red 141.
- To investigate the influence of operational parameters on dye biosorption.
Main Methods:
- Biosorption experiments using Debaryomyces hansenii F39A biomass.
- Optimization of variables: pH, initial dye concentration, adsorbent dosage, and contact time.
- Analysis of experimental data using Langmuir isotherm and pseudo-second-order kinetic models.
Main Results:
- Biosorption capacity increased with initial dye concentration up to 350 mg/l.
- Maximum uptake capacity (qmax) ranged from 0.0676–0.169 mmol/g.
- Debaryomyces hansenii F39A achieved ~90% removal of Reactive Red 141 and up to 90% of Reactive Blue 19 under optimized conditions.
Conclusions:
- Debaryomyces hansenii F39A demonstrates significant potential for efficient and cost-effective dye biosorption from wastewater.
- This yeast offers a promising biological alternative to conventional dye removal technologies.
