Waste paper and macroalgae co-digestion effect on methane production

Cristina Rodriguez; Abed Alaswad; Zaki El-Hassan; Abdul-Ghani Olabi

doi:10.1016/j.energy.2018.04.115

Waste paper and macroalgae co-digestion effect on methane production

Cristina Rodriguez, Abed Alaswad, Zaki El-Hassan, Abdul-Ghani Olabi

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Abstract

The present study investigates the effect on methane production from waste paper when co-digested with macroalgal biomass. Both feedstocks were previously mechanically pretreated to reduce their particle size. The study was planned according two factors: the feedstock to inoculum (F/I) ratio and the waste paper to macroalgae (WP/MA) ratio. The F/I ratios checked were 0.2, 0.3 and 0.4 and the WP/MA ratios were 0:100, 25:75, 50:50, 75:25 and 100:0. The highest methane yield (386 L kg-1 VSadded) was achieved at an F/I ratio of 0.2 and a WP/MA ratio of 50:50. A biodegradability index of 0.87 obtained in this study indicates complete conversion of feedstock at an optimum C/N ratio of 26. Synergistic effect was found for WP/MA 25:75, 50:50 and 75:25 mixing ratios compared with the substrates mono-digestion.

Original language	English
Pages (from-to)	119-125
Journal	Energy
Volume	154
Early online date	21 Apr 2018
DOIs	https://doi.org/10.1016/j.energy.2018.04.115
Publication status	Published - 1 Jul 2018

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2018 04 19 Rodriguez WasteAccepted author manuscript, 989 KBLicence: CC BY-NC-ND

Cristina Rodriguez Nunez
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title = "Waste paper and macroalgae co-digestion effect on methane production",

abstract = "The present study investigates the effect on methane production from waste paper when co-digested with macroalgal biomass. Both feedstocks were previously mechanically pretreated to reduce their particle size. The study was planned according two factors: the feedstock to inoculum (F/I) ratio and the waste paper to macroalgae (WP/MA) ratio. The F/I ratios checked were 0.2, 0.3 and 0.4 and the WP/MA ratios were 0:100, 25:75, 50:50, 75:25 and 100:0. The highest methane yield (386 L kg-1 VSadded) was achieved at an F/I ratio of 0.2 and a WP/MA ratio of 50:50. A biodegradability index of 0.87 obtained in this study indicates complete conversion of feedstock at an optimum C/N ratio of 26. Synergistic effect was found for WP/MA 25:75, 50:50 and 75:25 mixing ratios compared with the substrates mono-digestion.",

author = "Cristina Rodriguez and Abed Alaswad and Zaki El-Hassan and Abdul-Ghani Olabi",

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T1 - Waste paper and macroalgae co-digestion effect on methane production

AU - Rodriguez, Cristina

AU - Alaswad, Abed

AU - El-Hassan, Zaki

AU - Olabi, Abdul-Ghani

PY - 2018/7/1

Y1 - 2018/7/1

N2 - The present study investigates the effect on methane production from waste paper when co-digested with macroalgal biomass. Both feedstocks were previously mechanically pretreated to reduce their particle size. The study was planned according two factors: the feedstock to inoculum (F/I) ratio and the waste paper to macroalgae (WP/MA) ratio. The F/I ratios checked were 0.2, 0.3 and 0.4 and the WP/MA ratios were 0:100, 25:75, 50:50, 75:25 and 100:0. The highest methane yield (386 L kg-1 VSadded) was achieved at an F/I ratio of 0.2 and a WP/MA ratio of 50:50. A biodegradability index of 0.87 obtained in this study indicates complete conversion of feedstock at an optimum C/N ratio of 26. Synergistic effect was found for WP/MA 25:75, 50:50 and 75:25 mixing ratios compared with the substrates mono-digestion.

AB - The present study investigates the effect on methane production from waste paper when co-digested with macroalgal biomass. Both feedstocks were previously mechanically pretreated to reduce their particle size. The study was planned according two factors: the feedstock to inoculum (F/I) ratio and the waste paper to macroalgae (WP/MA) ratio. The F/I ratios checked were 0.2, 0.3 and 0.4 and the WP/MA ratios were 0:100, 25:75, 50:50, 75:25 and 100:0. The highest methane yield (386 L kg-1 VSadded) was achieved at an F/I ratio of 0.2 and a WP/MA ratio of 50:50. A biodegradability index of 0.87 obtained in this study indicates complete conversion of feedstock at an optimum C/N ratio of 26. Synergistic effect was found for WP/MA 25:75, 50:50 and 75:25 mixing ratios compared with the substrates mono-digestion.

U2 - 10.1016/j.energy.2018.04.115

DO - 10.1016/j.energy.2018.04.115

M3 - Article

SN - 0360-5442

VL - 154

SP - 119

EP - 125

JO - Energy

JF - Energy

ER -

Waste paper and macroalgae co-digestion effect on methane production

Abstract

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Cristina Rodriguez Nunez

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