Comparative evaluation of bioremediation techniques on oil contaminated sediments in long-term recovery of benthic community health SCIE SCOPUS

Cited 5 time in WEB OF SCIENCE Cited 6 time in Scopus
Title
Comparative evaluation of bioremediation techniques on oil contaminated sediments in long-term recovery of benthic community health
Author(s)
Lee, Changkeun; Hong, Seongjin; Noh, Junsung; Lee, Junghyun; Yoon, Seo Joon; Kim, Taewoo; Kim, Hosang; Kwon, Bong-Oh; Lee, Hanbyul; Ha, Sung Yong; Ryu, Jongseong; Kim, Jae-Jin; Kwon, Kae Kyoung; Yim, Un Hyuk; Khim, Jong Seong
KIOST Author(s)
Ha, Sung Yong(하성용)Kwon, Kae Kyoung(권개경)Yim, Un Hyuk(임운혁)
Publication Year
2019-09
Abstract
While various bioremediation techniques have been widely used at oil spill sites, the in situ efficiency of such techniques on recovering the benthic communities in intertidal areas has not been quantified. Here, the performance of several bioremediation tools such as emulsifiers, multi-enzyme liquid (MEL), microbes, and rice-straw was evaluated by a 90-days semi-field experiment, particularly targeting recovery of benthic community. Temporal efficiency in the removal of sedimentary total petroleum hydrocarbons (TPH), reduction of residual toxicity, and recovery of bacterial diversity, microalgal growth, and benthic production was comprehensively determined. Concentrations of TPH and amphipod mortality for all treatments rapidly decreased within the first 10 days. In addition, the density of bacteria and microphytobenthos generally increased over time for all treatments, indicating recovery in the benthic community health. However, the recovery of some nitrifying bacteria, such as the class Nitrospinia (which are sensitive to oil components) remained incomplete (13-56%) during 90 days. Combination of microbe treatments showed rapid and effective for recovering the benthic community, but after 90 days, all treatments showed high recovery efficiency. Of consideration, the "no action" treatment showed a similar level of recovery to those of microbe and MEL treatments, indicating that the natural recovery process could prevail in certain situations. (C) 2019 Elsevier Ltd. All rights reserved.
ISSN
0269-7491
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/536
DOI
10.1016/j.envpol.2019.05.100
Bibliographic Citation
ENVIRONMENTAL POLLUTION, v.252, pp.137 - 145, 2019
Publisher
ELSEVIER SCI LTD
Subject
HYDROCARBON-DEGRADING BACTERIA; CRUDE-OIL; SP NOV.; SPILL; DEEP; SEA; MICROPHYTOBENTHOS; BIODEGRADATION; IDENTIFICATION; DEGRADATION
Keywords
Oil spill; Benthic community; Restoration; Semi-field experiment; PAH-Degrading bacteria; PAH-Vulnerable bacteria
Type
Article
Language
English
Document Type
Article
Publisher
ELSEVIER SCI LTD
Related Researcher
Research Interests

Acquisition of marine microbial bioresources,Marine microbial diversity,Application study on marine microbes,해양미생물 자원 확보,해양미생물 다양성,해양미생물 기능 활용

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