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Biodegradation of phenol by native microorganisms isolated from coke processing wastewater
S Chakraborty1, T Bhattacharya, T N Patel
1Department of Biological and Environmental Science, N.V. Patel College of Pure and Applied Sciences, V.V. Nagar 388 120, India. su_kalyanc@yahoo.co.uk
Native bacteria strains isolated from coke oven wastewater effectively biodegrade phenol. Strain ESDSPB2 demonstrated optimal phenol removal under specific pH, temperature, and glucose conditions for bioremediation applications.
Area of Science:
- Environmental Microbiology
- Bioremediation
- Wastewater Treatment
Background:
- Coke oven processing wastewater contains phenol, a toxic pollutant.
- Native microbial communities may possess inherent biodegradation capabilities.
Purpose of the Study:
- To isolate and identify native bacterial strains capable of phenol biodegradation from coke oven wastewater.
- To evaluate the efficiency of isolated strains in phenol removal.
- To determine optimal conditions for phenol biodegradation by the most effective strain.
Main Methods:
- Isolation and characterization of bacterial strains (ESDSPB1, ESDSPB2, ESDSPB3).
- Assessment of phenol degradation performance.
- Optimization studies for pH, temperature, and glucose concentration.
- Monitoring phenol concentration using analytical methods.
Main Results:
- Strain ESDSPB2 showed high phenol-degrading efficiency, reducing concentration from 200 mg/L to 79.84 mg/L.
- Phenol biodegradation rate was significantly influenced by pH, temperature, and glucose concentration.
- Optimal conditions for ESDSPB2 were pH 7 (84.63% removal), 30°C (76.69% removal), and 0.25% glucose (97.88% removal).
Conclusions:
- Native bacterial strain ESDSPB2 is highly effective for phenol bioremediation.
- Optimized conditions enhance biodegradation efficiency, offering a sustainable wastewater treatment solution.
- Utilizing indigenous microorganisms presents a promising approach for treating phenol-contaminated industrial wastewater.
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