Bioremediation of coking wastewater containing carbazole, dibenzofuran, dibenzothiophene and naphthalene by a naphthalene-cultivated Arthrobacter sp. W1.
A naphthalene-utilizing bacterium, Arthrobacter sp. W1, was used to investigate the cometabolic degradation of carbazole (CA), dibenzofuran (DBF) and dibenzothiophene (DBT) using naphthalene as the primary substrate. Both the growing and washed cells of strain W1 could degrade CA, DBF, DBT, and naphthalene simultaneously and quickly. Inhibition kinetics confirmed that the presence of CA, DBF and DBT in the growing system would inhibit the cells growth and biodegradability of strain W1. The relationship between ln(C/C0) and time, and specific degradation rate and CA, DBF and DBT concentration could be described well by First-order and Michaelis-Menten kinetics. The treatment of real coking wastewater containing high concentration of phenol, naphthalene, CA, DBF, DBT and NH3-N was shown to be highly efficient by naphthalene-grown W1 coupling with activation zeolite. Toxicity assessment indicated the treatment of the coking wastewater by strain W1 coupling with activation led to less toxicity than untreated wastewater.
State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China.
Shengnan
S
Shi
Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China.
Yuanyuan
Y
Qu
State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China. Electronic address: hit_dlut@163.com.
Fang
F
Ma
Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China.
Jiti
J
Zhou
D001173:Arthrobacter / Q000187:drug effects / Q000254:growth & development / Q000378:metabolism*; D001572:Benzofurans / Q000302:isolation & purification / Q000378:metabolism*; D001673:Biodegradation, Environmental / Q000187:drug effects; D002227:Carbazoles / Q000302:isolation & purification / Q000378:metabolism*; D003077:Coke; D007700:Kinetics; D009281:Naphthalenes / Q000302:isolation & purification / Q000378:metabolism*; D013876:Thiophenes / Q000302:isolation & purification / Q000378:metabolism*; D013997:Time Factors; D018675:Toxicity Tests; D014733:Vibrio / Q000187:drug effects; D062065:Wastewater / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000302:isolation & purification* / Q000378:metabolism / Q000633:toxicity
D001572:Benzofurans; D002227:Carbazoles; D003077:Coke; D009281:Naphthalenes; D013876:Thiophenes; D062065:Wastewater; D014874:Water Pollutants, Chemical; C041514:carbazole; C031721:naphthalene; C023614:dibenzofuran; C016366:dibenzothiophene
Arthrobacter sp. W1; Coking wastewater; Cometabolic degradation; Heterocyclic compound; Naphthalene