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Progress in bioremediation of pyrene

Author(s):

Jianghong Liu*, Huimin Su, Xiaohang Wei and Jian Xue  

Abstract:


Aims: This paper is a review of the repair methods of pyrene, including physical, chemical, and bioremediation methods, and makes a comparison. In addition, it highlightly focuses on the methods, status quo, mechanisms and current problems that need to be solved in bioremediation degradation of pyrene.

Background: Polycyclic aromatic hydrocarbons (PAHs), a diverse class of the organic pollutants with carcinogenicity, mutagenicity and teratogenicity, seriously endanger the ecological environment and public health.

Objective: Harmless degradation of pyrene.

Method: Bioremediation.

Result: Plant and microbial joint repair can achieve good degradation.

Conclusion: Pyrene is easy to concentrate in polluted environment, high content, and toxic to human organs. More importantly, it is a highly harmful substance with a triple effect and genetic toxicity, and its impact on the environment and human health is enormous. And because of its strong hydrophobicity and higher stability, it is more difficult to remove. In daily life, the combustion and use of coal and oil, food processing and other industrial activities have the production of PAHs and pyrene, so pyrene repair is imminent. Different from other remediation methods, using phytoremediation technology to restore pyrene in sediments or soil has the advantages of environmental friendliness and low cost.

Other: Pyrene, consisting of four benzene rings, is used as an indicator for PAH-contaminated waste monitoring and is ubiquitously in found in oil-contaminated soils and water sediments.

Keywords:

pyrene, PAHs, bioremediation, phytoremediation, method, mechanism

Affiliation:

Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing, 163318, Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing, 163318, Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing, 163318, Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing, 163318



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