Bacteria immobilized electrospun polycaprolactone and polylactic acid fibrous webs for remediation of textile dyes in water
Date
2017-10Source Title
Chemosphere
Print ISSN
0045-6535
Publisher
Elsevier
Volume
184
Pages
393 - 399
Language
English
Type
ArticleItem Usage Stats
301
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272
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Abstract
In this study, preparation and application of novel biocomposite materials for textile dye removal which are produced by immobilization of specific bacteria onto electrospun nanofibrous webs are presented. A textile dye remediating bacterial isolate, Clavibacter michiganensis, was selected for bacterial immobilization, a commercial reactive textile dye, Setazol Blue BRF-X, was selected as the target contaminant, and electrospun polycaprolactone (PCL) and polylactic acid (PLA) nanofibrous polymeric webs were selected for bacterial integration. Bacterial adhesion onto nanofibrous webs was monitored by scanning electron microscopy (SEM) imaging and optical density (OD) measurements were performed for the detached bacteria. After achieving sufficient amounts of immobilized bacteria on electrospun nanofibrous webs, equivalent web samples were utilized for testing the dye removal capabilities. Both bacteria/PCL and bacteria/PLA webs have shown efficient remediation of Setazol Blue BRF-X dye within 48 h at each tested concentration (50, 100 and 200 mg/L), and their removal performances were very similar to the free-bacteria cells. The bacteria immobilized webs were then tested for five times of reuse at an initial dye concentration of 100 mg/L, and found as potentially reusable with higher bacterial immobilization and faster dye removal capacities at the end of the test. Overall, these findings suggest that electrospun nanofibrous webs are available platforms for bacterial integration and the bacteria immobilized webs can be used as starting inocula for use in remediation of textile dyes in wastewater systems.
Keywords
Bacterial immobilizationDye bioremoval
Electrospinning
Polycaprolactone
Polylactic acid
Computer software reusability
Electrospinning
Nanofibers
Pollution
Polycaprolactone
Polyesters
Remediation
Scanning electron microscopy
Textiles
Bacterial adhesion
Bacterial isolates
Biocomposite materials
Immobilized bacteria
Initial dye concentration
Poly lactic acid
Removal performance
Waste water systems
Nanofiber
Polycaprolactone
Polylactic acid
Water
Coloring agent
Polycaprolactone
Polyester
Polylactide
Waste water
Water pollutant
Adhesion
Bacterium
Concentration (composition)
immobilization
pollutant removal
wastewater
water pollution
Bacterium adherence
Bacterium isolation
Bioremediation
Clavibacter michiganensis
Controlled study
Electrospinning
Immobilization
Nonhuman
Optical density
Scanning electron microscopy
Textile
Waste water management
Bacterium
Isolation and purification
Metabolism
Textile industry
Waste water
Water pollutant
Bacteria (microorganisms)
Clavibacter michiganensis
Bacteria
Biodegradation, Environmental
Coloring Agents
Polyesters
Textile Industry
Waste Water
Water Pollutants, Chemical
Permalink
http://hdl.handle.net/11693/37422Published Version (Please cite this version)
https://doi.org/10.1016/j.chemosphere.2017.06.020Collections
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