TY - JOUR
T1 - Biochemical methane potential test for pulp and paper mill sludge with different food / microorganisms ratios and its kinetics
AU - Veluchamy, C.
AU - Kalamdhad, Ajay S.
N1 - Publisher Copyright:
© 2017 Elsevier Ltd
PY - 2017/2/1
Y1 - 2017/2/1
N2 - The application of anaerobic digestion is mounting worldwide because of its economic and environmental benefits. As a concern, the rate and extent of the anaerobic digestion of pulp and paper mill sludge was tested using the biochemical methane potential (BMP) with different food/microorganisms (F/M) ratio. The study was evaluated at five different F/M ratios (i.e. 0.5, 1.0, 1.5, 2.0, 2.5). In addition to that reaction kinetics and the influence of biodegradability were also evaluated for the biomethane potential of substrates. The highest cumulative methane yield was obtained in F/M ratio 2.0 with 3.4 L followed by F/M ratio 1.5 and 2.5 with 3.3 L and 2.9 L, respectively. The maximum methane production rate 3.66 L CH4 was perceived as per kinetics. The biomass activity may be affected due to the high substrate concentration during BMP test of lower F/M ratios. On the other hand, F/M ratio greater than 2.0, methane yield was decreased due to increased volatile fatty acid production reduces the reactor pH and inhibits methanogens activity.
AB - The application of anaerobic digestion is mounting worldwide because of its economic and environmental benefits. As a concern, the rate and extent of the anaerobic digestion of pulp and paper mill sludge was tested using the biochemical methane potential (BMP) with different food/microorganisms (F/M) ratio. The study was evaluated at five different F/M ratios (i.e. 0.5, 1.0, 1.5, 2.0, 2.5). In addition to that reaction kinetics and the influence of biodegradability were also evaluated for the biomethane potential of substrates. The highest cumulative methane yield was obtained in F/M ratio 2.0 with 3.4 L followed by F/M ratio 1.5 and 2.5 with 3.3 L and 2.9 L, respectively. The maximum methane production rate 3.66 L CH4 was perceived as per kinetics. The biomass activity may be affected due to the high substrate concentration during BMP test of lower F/M ratios. On the other hand, F/M ratio greater than 2.0, methane yield was decreased due to increased volatile fatty acid production reduces the reactor pH and inhibits methanogens activity.
KW - Anaerobic digestion
KW - Biochemical methane potential (BMP)
KW - Biogas
KW - Food/microorganisms ratio
KW - Pulp and paper mill sludge
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U2 - 10.1016/j.ibiod.2017.01.005
DO - 10.1016/j.ibiod.2017.01.005
M3 - Article
AN - SCOPUS:85008323078
SN - 0964-8305
VL - 117
SP - 197
EP - 204
JO - International Biodeterioration and Biodegradation
JF - International Biodeterioration and Biodegradation
ER -