The Use Of Membrane Technology For The
Formulation Of Spent Anaerobic Digester
Effluents As A Nutrient Source For
Bacterial Growth
Author(s)
M. P. Zacharof, C. Vouzelaud & R. W. Lovitt
Abstract
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.
Keywords: microfiltration, anaerobic digestion, sludge, nutrient media,
bacterial growth, biofuels, acid, wastewater treatment.
Keywords
microfiltration, anaerobic digestion, sludge, nutrient media,
bacterial growth, biofuels, acid, wastewater treatment.
Related Book
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