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Date Published: 24/06/2023
Online Published: 24/06/2023
Abstract Views: 76
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DOI: https://doi.org/10.52714/dthu.12.5.2023.1072
Issue
Vol. 12 No. 5 (2023): Natural Sciences Issue (English)
Section
Natural Sciences Issue
How to Cite
Ha, D. D., Nguyen, T. T., & Nguyen, T. T. (2023). Diuron degradation by a mixed culture of bacteria immobilized in rice straw. Dong Thap University Journal of Science, 12(5), 55-62. https://doi.org/10.52714/dthu.12.5.2023.1072

Diuron degradation by a mixed culture of bacteria immobilized in rice straw

Danh Duc Ha1,, Thi Thanh Nguyen1, Thi Thuy Nguyen1
1 Faculty of Agriculture and Environment Resources, Dong Thap University, Vietnam

Main Article Content

Abstract

Diuron has been widely applied to control weeds causing serious environmental pollution. In the current study, the mixed culture of three bacterial isolates, Bacillus subtilis DU1, Acinetobacter baumannii DU, and Pseudomonas sp. DUK, was investigated for diuron degradation in a packed reactor and soil. The immobilization of the bacteria mixture in rice straw increased the degradation. The specific degradation rates of diuron by bacteria immobilized in rice straw in batch cultures increased from 0.38 ± 0.03 mg/L at the first cycle to 0.98 ± 0.10 mg/L at the fourth cycle. The degradation using the reactor was also carried out in a continuous operation. Moreover, the introduction of bacteria into soil increased diuron degradation. This study shows the potential of diuron degradation in the reactor and in soil using the mixed bacterial culture immobilized in rice straw.

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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Keywords

Degradation, diuron, immobilized bacteria, packed reactor

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