Abstract
Objective
To develop a method to treat saline phenolic wastewater in a biological contact oxidation reactor (BCOR) with immobilized cells of a marine microorganism, Oceanimonas sp., isolated from seawater.
Results
Cells were immobilized on fibre carriers in the BCOR. Saline wastewater with phenol at 1.5 g/l and NaCl at 6 % (w/v) was treated. In continuous assays, 99 % removal of phenol was achieved and a kinetic model for the phenol degradation is presented based on Monod’s equation.
Conclusion
The BOCR system using immobilized cells of Oceanimonas efficiently treats saline phenolic wastewaters without having decrease the salinity of the wastewater.
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Abbreviations
- A :
-
Specific surface area of carriers (m2/m3)
- D :
-
Thickness of microbial system on carriers (m)
- \( \left( {\frac{dS}{dt}} \right)_{A} \) :
-
Removal rate of phenol by microorganisms loaded on carriers (mg/l h)
- \( \left( {\frac{dS}{dt}} \right)_{s} \) :
-
Removal rate of phenol by microorganisms suspended in the bioreactor (mg/l h)
- K s :
-
Saturation constant (mg/l, equal to the concentration of phenol when \( \mu = \frac{{\mu_{max} }}{2} \))
- \( N \) :
-
Volume of carriers (l)
- Q :
-
Quantity of influent flow (m3/d)
- S :
-
Concentration of phenol (mg/l)
- S o :
-
Concentration of phenol in the influent (mg/l)
- S e :
-
Concentration of phenol in the effluent (mg/l)
- U:
-
Removal rate of phenol per area of carriers (g/m2 d)
- V A :
-
Volume of microbial system loaded on carriers (m3)
- V S :
-
Volume of whole solution in the bioreactor (m3)
- X A :
-
Mass of immobilized microorganisms (mg/l)
- Y A :
-
Yield (%)
- μ :
-
Specific growth rate (h−1)
- μ max :
-
Maximum specific growth rate (h−1)
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Acknowledgments
This work is funded by China Scholarship Council and Harbin Institute of Technology (Weihai) (Ref. No. HIT(WH)XB200804). Our gratitude also goes to the staff in the Department of Chemical and Biomolecular Engineering, University of Sydney and the Departments of Environmental Engineering, Harbin Institute of Technology (Weihai) for their very kind assistance.
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Isolation and identification of the marine microorganism.
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Tan, S., Chen, X., Cui, C. et al. Biodegradation of saline phenolic wastewater in a biological contact oxidation reactor with immobilized cells of Oceanimonas sp.. Biotechnol Lett 39, 91–96 (2017). https://doi.org/10.1007/s10529-016-2226-9
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DOI: https://doi.org/10.1007/s10529-016-2226-9