The Use Of Membrane Technology For The Formulation Of Spent Anaerobic Digester Effluents As A Nutrient Source For Bacterial Growth

Spent digester effluents were formulated into nutrient media , suitable for microbial growth of industrially important microorganisms, using filtration and diafiltration. The waste effluents were pretreated by dilution, sedimentation and sieving for the removal of large particulate material. The sch...

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Bibliographic Details
Published in:WIT Transactions on Ecology and the Environment 2014-01, Vol.180
Main Authors: Zacharof, M P, Vouzelaud, C, Lovitt, R W
Format: Article
Language:English
Subjects:
Carbohydrates
Digesters
Dilution
E coli
Effluent treatment
Effluents
Escherichia coli
Growth media
Growth rate
Media
Microorganisms
Nutrients
Organic chemistry
Particulate matter
Sedimentation
Sludge
Substrates
Wastewater treatment
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Summary:Spent digester effluents were formulated into nutrient media , suitable for microbial growth of industrially important microorganisms, using filtration and diafiltration. The waste effluents were pretreated by dilution, sedimentation and sieving for the removal of large particulate material. The scheme used allowed the successful formulation particle, free sterile effluents, with an N:P ratio 36.6 The prepared microfiltered effluents were then physicochemically characterized before being assessed for their utilization as growth substrates of microorganism associated with chemical and fuels production. Microfiltered treated digested propagated with Escherichia coli NCIMB 8277, agricultural sludge based media were compared with in vitro media when supplied with or without addition carbohydrate sources. in bench scale batch aerobic. Good growth was achieved compared to synthetic growth media with the microorganism using filtrates. When the treated effluents were supplied with 2% w/v glucose solution a significant improvement in the growth rates and growth yields was achieved giving comparable performance with the synthetic media.
ISSN:1746-448X
1743-3541
DOI:10.2495/WM140211