Plant-microbial remediation of chlorpyrifos contaminated soil

Abstract

With the development of modern agriculture, the pollution caused by the use of chemical fertilizers and pesticides has become a serious problem, posing a threat to human health and the living environment. The remediation of plant microorganisms has been seen as an economical, effective, and eco-friendly method of cleaning up soils contaminated with organophosphorus pesticides. In this study, white-rot fungi were immobilized by adsorption method, a plant-microbial remediation met was established. The data results show that after 30 days, the combined remediation system for corn microbes increased the rate of chlorpyrifos degradation by 18% compared to the single remediation of the plant, and the rate of combined remediation of ryegrass microbes increased by 23%. The effect of CPF content in soil on the combined remediation is mainly reflected in the significant difference in the number of microorganisms (P < 0.05). In this article, plant-microbial remediation were applied to soil contaminated by CPF, which provides a new idea for the remediation of pesticide-contaminated soil. Combined bioremediation may be a better alternative to mitigate the impact of high pollution on microorganisms at different pollutant concentrations compared to single microbial remediation or phytoremediation.

Keywords:

• Bioaugmentation
• combined bioremediation
• contaminated soil
• environmental pollution control
• immobilization
• pesticide
• resource utilization
• white-rot fungi

Acknowledgments

Xin Wang and Jia Bao designed the experiment. Jiawen Hou and Wenrui Liu conduct the experiment, processed the data, and performed the statistical analysis. The manuscript was drafted by Xin Wang, Jiawen Hou, Wenrui Liu and Jia Bao which was finalized by Xin Wang, Jiawen Hou, Wenrui Liu and Jia Bao. All authors have read and approved the final version of the manuscript.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

The work has been financially supported by the National Nature Science Foundation of China [grant no. 21976124] and Scientific Research Fund of Liaoning Provincial Education Department [grant no. LJGD2020005]. And author sincerely thanks the teachers and students for their excellent help during the experiment.