APPLICATION OF BIO-PRODUCT FROM BIOFILM-FORMING BACTERIA ON SAWDUST TO TREAT OIL-POLLUTED WATER

Lê Thị Nhi Công; Nguyễn Kiều Hương; Phạm Thế Trịnh; Cung Thị Ngọc Mai; Đỗ Thị Liên; Trần Thị Mai; Vương Thị Nga; Quách Thị Liên

doi:10.34238/tnu-jst.13511

APPLICATION OF BIO-PRODUCT FROM BIOFILM-FORMING BACTERIA ON SAWDUST TO TREAT OIL-POLLUTED WATER

About this article

Revised: 30/11/25 Published: 01/01/70

Authors

1. Le Thi Nhi Cong , 1) Institute of Biology - Vietnam Academy of Science and Technology, 2) Graduate University of Science and Technology - Vietnam Academy of Science and Technology
2. Nguyen Kieu Huong, Graduate University of Science and Technology - Vietnam Academy of Science and Technology
3. Pham The Trinh, 1) Department of Science and Technology Daklak, 2) Tay Nguyen University
4. Cung Thi Ngoc Mai, Institute of Biology - Vietnam Academy of Science and Technology
5. Do Thi Lien, Institute of Biology - Vietnam Academy of Science and Technology
6. Tran Thi Mai, Institute of Biology - Vietnam Academy of Science and Technology
7. Vuong Thi Nga, 1) Institute of Biology - Vietnam Academy of Science and Technology, 2) Graduate University of Science and Technology - Vietnam Academy of Science and Technology
8. Quach Thi Lien, Institute of Biology - Vietnam Academy of Science and Technology

Abstract

Oil pollution remains a significant concern for both human health and ecosystems. Many physical, chemical and biological approaches have been proposed. The use of biofilm-forming microorganisms on carrier materials has made a significant contribution to oil pollution treatment. Therefore, sawdust has been used to analyze and evaluate the physicochemical properties to confirm the structural suitability for making a bio-product. The results showed that sawdust is porous, has a large surface area, and contains only the element groups C, O and Si, therefore, microorganisms can adhere and form biofilms in/on sawdust. Conducting different ratios of the product from 1, 2, 5 and 10% with 200 ppm crude oil, after 7 days, the saturated hydrocarbon, aromatic hydrocarbon, resin and asphaltene components were significantly reduced. Especially with 10% of the product, these components were degraded by 80, 75, 66 and 60%, respectively. The n-alkanes from C13 to C27 and aromatic hydrocarbons were also remarkably degraded. This result suggests the potential application of sawdust to create bio-products and applications in large-scale oil pollution treatment.

Keywords

Bacteria; Biodegradation; Biofilm; Oil pollution; Sawdust

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DOI: https://doi.org/10.34238/tnu-jst.13511

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