Identification of Bacterial Population of Activated Sludge Process and Their Potentials in Pharmaceutical Effluent Treatment.
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Date
2014-03
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Abstract
Aims/objectives: The cognition about microbial population of activated sludge and their
treatment potential will be very useful for industrial wastewater treatment plant operation.
Methodology: In this study microbial population of activated sludge process that was
used for pharmaceutical wastewater has been investigated. Sampling was done from
return sludge line and after serial dilution 1500 plates were studied. Methods for
separating the bacteria from wastewater was pour plate method. All bacterial samples
were purified using nutrient Agar and Macconkey Agar culture. Bacteria were separated
from return sludge line and classified into 3 groups after biochemical tests and morphological analysis, These include positive bacteria of Bacillus genus, Pseudomonas
aeruginosa and Flavobacterium.
Results: The biodegradability study on pharmaceutical effluent using identified cultures in
laboratory scale showed that Bacillus spp. are the most efficient bacteria for organic
matter degradation.
Conclusion: Results of this study showed that providing a microbial bank of these spp.
can be useful for resistant operation of activated sludge.
Description
Keywords
Pharmaceutical wastewater, microbial population, activated sludge, COD
Citation
Meherdad Farrokhi, Naser Ghaemi, Fazel Najafi, Mohammad Naimi- Joubani, Rabiollah Farmanbar, Esmaeil Roohbakhsh Joorshari. Identification of Bacterial Population of Activated Sludge Process and Their Potentials in Pharmaceutical Effluent Treatment. British Biotechnology Journal. 2014 Mar; 4(3): 317-324.