Graphene-oxide modified polyvinyl-alcohol as microbial carrier to improve high salt wastewater treatment

Zhou, Guizhong and Wang, Zhaofeng and Li, Wenqian and Yao, Qian and Zhang, Dayi (2015) Graphene-oxide modified polyvinyl-alcohol as microbial carrier to improve high salt wastewater treatment. Materials Letters, 156. pp. 205-208. ISSN 0167-577X

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This work discussed the preparation and characterization of graphene oxide (GO) modified polyvinyl alcohol (PVA) for bacteria immobilization to enhance the biodegrdation efficiency of saline organic wastewater. GO-PVA material has lamellar structure with higher surface area to support bacterial growth and high salinity tolerance. It significantly stimulated the bacterial population by 1.4 times from 2.07×10<sup>3</sup> CFU/mL to 5.04×10<sup>3</sup> CFU/mL, and the microbial structure was also improved for salinity tolerance. Acinetobacter, Pseudomonas and Thermophilic hydrogen bacilli were enriched inside GO-PVA materials for glucose biodegradation. Compared to the COD<inf>Cr</inf> removal efficiency with only PVA as the carrier (52.8%), GO-PVA material had better degradation performance (62.8%). It is proved as a good candidate for bioaugmentation to improve biodegradation efficiency in hypersaline organic wastewater.

Item Type:
Journal Article
Journal or Publication Title:
Materials Letters
Additional Information:
Date of Acceptance: 23/05/2015 12 month embargo This is the author’s version of a work that was accepted for publication in Materials Letters. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Materials Letters, 156, 2015 DOI: 10.1016/j.matlet.2015.05.110
Uncontrolled Keywords:
?? graphene oxidehalotolerant bacteriahypersaline organic wastewaterimmobilizationphospholipid fatty acids (plfas)polyvinyl alcohol (pva)materials science(all)condensed matter physicsmechanical engineeringmechanics of materials ??
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Deposited On:
28 Sep 2015 11:05
Last Modified:
31 Dec 2023 00:35