Conversion of boreal lake sedimented pulp mill fibre into biogas: a two-stage hydrogen and methane production

El-Qelish, Mohamed and Chatterjee, Pritha and Kokko, Marika and et al, . (2022) Conversion of boreal lake sedimented pulp mill fibre into biogas: a two-stage hydrogen and methane production. Biomass Conversion and Biorefinery. ISSN 2190-6815

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Abstract

The possibility of producing hydrogen and methane from sedimented pulp and paper mill waste fibre was explored for the first time in a double-stage process. Hydrogen and methane production was compared in batch experiments under four different conditions: two-stage hydrogen and methane production under (i) mesophilic (37 degrees C) and (ii) thermophilic (55 degrees C) and one-stage methane production under (iii) mesophilic and (iv) thermophilic conditions. Among these conditions studied, two-stage thermophilic anaerobic digestion achieved the highest hydrogen yield (42.1 +/- 2.91 mL/g VS) and methane yield (334 +/- 26.8 mL/g VS) at 55 degrees C. The experimental results were fitted to modified Gompertz equation, and a strong correlation was built from the overall magnitude of the regression (R-2 ranged from 0.996to 0.989) between the experimental data and the applied equation. Total energy yield from the two-stage thermophilic process was higher (3.7 kWh/L) than the one-stage process (1.7 kWh/L). The two-stage treatment also reduced the treatment time by half. Knowledge gained from this study will provide a basis for future investigation of two-stage treatment of sedimented fibres.

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IITH Creators:

IITH Creators	ORCiD
Chatterjee, Pritha	UNSPECIFIED

Item Type:

Article

Additional Information:

This work was supported by the fund received from the Finnish National Agency for Education (visiting doctoral program).

Uncontrolled Keywords:

anaerobic-digestion system, biohydrogen production, biological hydrogen, co-digestion, Dark fermentation, fermentation, food waste, h-2, Mesophilic, paper, Sedimented fibre, sewage-sludge, Thermophilic, Two-stage digestion, waste activated-sludge

Subjects:

Civil Engineering

Divisions:

Department of Civil Engineering

Depositing User:

. LibTrainee 2021

Date Deposited:

30 Aug 2022 14:03

Last Modified:

30 Aug 2022 14:03

URI:

http://raiithold.iith.ac.in/id/eprint/10348