Isolation, characterization and identification of microorganisms from unorganized dairy sector wastewater and sludge samples and evaluation of their biodegradability

In developing countries like India, the major part of the dairy sector is under the coverage area of unorganized sector, which lacks adequate treatment facility. In present investigation, the study was done to isolate most frequently occurring active strains adapted to the wastewater physical-chemical conditions and having good biodegradation potential. The 10 isolates were selected on the basis of their efficiency in reducing all the three pollution potential parameters i.e BOD, TSS and Oil and grease content. The identification of selected strains was done by 16 S rRNA sequencing. The maximum reduction in BOD3 was shown by isolate no. 25 i.e 89.8% (90 mg/l). Isolate no. 4 and 25 were efficient in reducing the TSS content by 88.6%. Isolate no. 27 and 45 were more efficient in reducing the oil and grease content by 88.5% and 90% respectively.

Abstract licence: CC BY-NC

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