Microbial remediation of oil-contaminated shorelines: a review

Environ Sci Pollut Res Int. 2023 Sep;30(41):93491-93518. doi: 10.1007/s11356-023-29151-y. Epub 2023 Aug 12.

Abstract

Frequent marine oil spills have led to increasingly serious oil pollution along shorelines. Microbial remediation has become a research hotspot of intertidal oil pollution remediation because of its high efficiency, low cost, environmental friendliness, and simple operation. Many microorganisms are able to convert oil pollutants into non-toxic substances through their growth and metabolism. Microorganisms use enzymes' catalytic activities to degrade oil pollutants. However, microbial remediation efficiency is affected by the properties of the oil pollutants, microbial community, and environmental conditions. Feasible field microbial remediation technologies for oil spill pollution in the shorelines mainly include the addition of high-efficiency oil degrading bacteria (immobilized bacteria), nutrients, biosurfactants, and enzymes. Limitations to the field application of microbial remediation technology mainly include slow start-up, rapid failure, long remediation time, and uncontrolled environmental impact. Improving the environmental adaptability of microbial remediation technology and developing sustainable microbial remediation technology will be the focus of future research. The feasibility of microbial remediation techniques should also be evaluated comprehensively.

Keywords: Environmental adaptability; Microbial remediation; Oil pollution; Shorelines; Sustainable microbial remediation.

Publication types

  • Review

MeSH terms

  • Biodegradation, Environmental
  • Environmental Pollutants*
  • Environmental Restoration and Remediation*
  • Petroleum Pollution*
  • Petroleum* / metabolism
  • Technology

Substances

  • Environmental Pollutants
  • Petroleum