气候变化领域集成服务门户(CCPortal): Removal of high-molecular-weight polycyclic aromatic hydrocarbons by a microbial consortium immobilized in magnetic floating biochar gel beads

CCPortal

DOI	10.1016/j.marpolbul.2020.111489
	Removal of high-molecular-weight polycyclic aromatic hydrocarbons by a microbial consortium immobilized in magnetic floating biochar gel beads
	Qiao K.; Tian W.; Bai J.; Wang L.; Zhao J.; Song T.; Chu M.
发表日期	2020
ISSN	0025326X
卷号	159
英文摘要	A bacterial consortium immobilized in magnetic floating biochar gel beads is proposed to remove high-molecular-weight polycyclic aromatic hydrocarbons. The microbial consortium performed better than single strains and consisted of four strains of marine bacteria for degrading pyrene (PYR), two strains for benzo(a)pyrene (BAP), and three strains for indeno(1,2,3-cd)pyrene (INP), which were isolated from oil-contaminated seawater. The immobilized cells could biodegrade 89.8%, 66.9% and 78.2% of PYR, BAP and INP, respectively, and had better tolerance to pH, temperature and salinity than free cells. The Andrews model was used to explore the biodegradation kinetics, and when the initial concentrations of PYR, BAP, and INP were 7.80, 3.05, and 3.41 mg/L, the specific biodegradation rates reached maximum values of 0.2507, 0.1286, and 0.1930 d−1, respectively. The immobilized microbial consortium had a high HMW-PAH removal ability and good floatability and magnetic properties and could be collected by an external magnetic field. © 2020
英文关键词	Andrews model; Gel beads; HMW-PAHs; Immobilization; Microbial consortium
语种	英语
scopus关键词	Bacteria; Cell culture; Magnetism; Mineral oils; Molecular weight; Pyrene; Bacterial consortium; Biodegradation kinetics; Biodegradation rate; Contaminated seawater; External magnetic field; High molecular weight; Initial concentration; Microbial consortia; Biodegradation; benzo[a]pyrene; biochar; charcoal; gel; gel bead; high molecular weight polycyclic aromatic hydrocarbon; indeno[1,2,3 cd]pyrene; magnetite; polycyclic aromatic hydrocarbon; pyrene; sea water; unclassified drug; biochar; charcoal; bacterium; biochar; biodegradation; concentration (composition); immobilization; PAH; reaction kinetics; Alcanivorax; Andrews model; Article; bacterial strain; biodegradation; concentration (parameter); controlled study; degradation kinetics; Fourier transform infrared spectroscopy; Halomonas; immobilization; Joostella; magnetic field; microbial consortium; model; pH; Pseudomonas; salinity; scanning electron microscopy; Shewanella; spillage; temperature; Thalassospira; water contamination; bioremediation; magnetism; microbial consortium; soil pollutant; Bacteria (microorganisms); Biodegradation, Environmental; Charcoal; Magnetic Fields; Magnetic Phenomena; Microbial Consortia; Polycyclic Aromatic Hydrocarbons; Soil Pollutants
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/148685
作者单位	College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao, 266100, China
推荐引用方式 GB/T 7714	Qiao K.,Tian W.,Bai J.,et al. Removal of high-molecular-weight polycyclic aromatic hydrocarbons by a microbial consortium immobilized in magnetic floating biochar gel beads[J],2020,159.
APA	Qiao K..,Tian W..,Bai J..,Wang L..,Zhao J..,...&Chu M..(2020).Removal of high-molecular-weight polycyclic aromatic hydrocarbons by a microbial consortium immobilized in magnetic floating biochar gel beads.Marine Pollution Bulletin,159.
MLA	Qiao K.,et al."Removal of high-molecular-weight polycyclic aromatic hydrocarbons by a microbial consortium immobilized in magnetic floating biochar gel beads".Marine Pollution Bulletin 159(2020).