Bioremediation of river sediment polluted with polychlorinated biphenyls: A laboratory study

Author:

Zeradjanin Aleksandra1ORCID,Joksimovic Kristina1ORCID,Avdalovic Jelena1ORCID,Gojgic-Cvijovic Gordana1ORCID,Nakano Takeshi2ORCID,Miletic Srdjan1ORCID,Ilic Mila1ORCID,Beskoski Vladimir3ORCID

Affiliation:

1. University of Belgrade, Institute of Chemistry, Technology and Metallurgy, Serbia

2. Osaka University, Research Center for Environmental Preservation, Japan

3. University of Belgrade, Faculty of Chemistry, Serbia

Abstract

Persistent organic pollutants (POPs) are lipophilic, constant and bioaccumulative toxic compounds. In general, they are considered resistant to biological, photolytic, and chemical degradation with polychlorinated biphenyls (PCBs) belonging to these chemicals. PCBs were never produced in Serbia, but they were imported and mainly used in electrical equipment, transformers, and capacitors. Our study aimed to analyse sequential multi-stage aerobic/anaerobic microbial biodegradation of PCBs present in the river sediment from the area known for long-term pollution with these chemicals. The study with an autochthonous natural microbial community (NMC model system) and NMC augmented with allochthonous hydrocarbon-degrading (AHD) microorganisms (isolated from location contaminated with petroleum products) (NMC-AHD model system) was performed in order to estimate the potential of these microorganisms for possible use in future bioremediation treatment of these sites. The laboratory biodegradation study lasted 70 days, after which an overall >33 % reduction in the concentration of total PCBs was observed. This study confirmed the strong potential of the NMC for the reduction of the level of PCBs in the river sediment under alternating multi-stage aerobic/anaerobic conditions.

Funder

Ministry of Education, Science and Technological Development of the Republic of Serbia

Publisher

National Library of Serbia

Subject

General Chemistry

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Remediation of Persistent Organic Pollutants Using Advanced Techniques;Emerging Contaminants and Associated Treatment Technologies;2023

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