Optimization of anaerobic digestion for mechanically pretreated waste paper

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The accessibility of microorganisms to the fermentable components in anaerobic digestion is restricted by the complex structure of the lignocellulosic materials, such as paper wastes. In order to reduce the biomass particle size and to increase the feedstock’ specific surface area available to the microorganisms, and therefore improve the methane yield, a beating pre-treatment with a Hollander beater was assessed. The mechanical pretreatment has been applied to a batch of office paper previously shredded and inoculated with sludge from a biogas production plant. The methane yield decreased with increased ratio F/I for all pretreatment times. The methane yield decreased by 5.24% when the paper waste was beated for 30 min and increased by 20.60% for 60 min. A response surface methodology (RSM) was used in order to evaluate the effect of the operational parameters on the methane production. The optimal methane yield of 245.37ml/gVS from the numerical optimisation was found at BT= 55 min and F/I ratio= 0.3, allowing 17% extra methane when compared to the maximum methane production for untreated paper.
Original languageEnglish
Title of host publication11th Conference on Sustainable Development of Energy, Water and Environment Systems, SDEWES
PublisherUniversity of Zagreb
Pages1-13
Publication statusPublished - 14 Oct 2016

Publication series

Name
ISSN (Print)1847-7178

Fingerprint

Waste paper
Anaerobic digestion
Methane
Microorganisms
Biogas
Specific surface area
Feedstocks
Biomass
Particle size

Cite this

Rodriguez , C., Alaswad, A., El-Hassan, Z., & Olabi, A-G. (2016). Optimization of anaerobic digestion for mechanically pretreated waste paper. In 11th Conference on Sustainable Development of Energy, Water and Environment Systems, SDEWES (pp. 1-13). [0678] University of Zagreb.
Rodriguez , Cristina ; Alaswad, Abed ; El-Hassan, Zaki ; Olabi, Abdul-Ghani. / Optimization of anaerobic digestion for mechanically pretreated waste paper. 11th Conference on Sustainable Development of Energy, Water and Environment Systems, SDEWES. University of Zagreb, 2016. pp. 1-13
@inproceedings{4d5d8cd43bd8403db2ba22fe7fcce649,
title = "Optimization of anaerobic digestion for mechanically pretreated waste paper",
abstract = "The accessibility of microorganisms to the fermentable components in anaerobic digestion is restricted by the complex structure of the lignocellulosic materials, such as paper wastes. In order to reduce the biomass particle size and to increase the feedstock’ specific surface area available to the microorganisms, and therefore improve the methane yield, a beating pre-treatment with a Hollander beater was assessed. The mechanical pretreatment has been applied to a batch of office paper previously shredded and inoculated with sludge from a biogas production plant. The methane yield decreased with increased ratio F/I for all pretreatment times. The methane yield decreased by 5.24{\%} when the paper waste was beated for 30 min and increased by 20.60{\%} for 60 min. A response surface methodology (RSM) was used in order to evaluate the effect of the operational parameters on the methane production. The optimal methane yield of 245.37ml/gVS from the numerical optimisation was found at BT= 55 min and F/I ratio= 0.3, allowing 17{\%} extra methane when compared to the maximum methane production for untreated paper.",
author = "Cristina Rodriguez and Abed Alaswad and Zaki El-Hassan and Abdul-Ghani Olabi",
year = "2016",
month = "10",
day = "14",
language = "English",
publisher = "University of Zagreb",
pages = "1--13",
booktitle = "11th Conference on Sustainable Development of Energy, Water and Environment Systems, SDEWES",
address = "Croatia",

}

Rodriguez , C, Alaswad, A, El-Hassan, Z & Olabi, A-G 2016, Optimization of anaerobic digestion for mechanically pretreated waste paper. in 11th Conference on Sustainable Development of Energy, Water and Environment Systems, SDEWES., 0678, University of Zagreb, pp. 1-13.

Optimization of anaerobic digestion for mechanically pretreated waste paper. / Rodriguez , Cristina; Alaswad, Abed; El-Hassan, Zaki; Olabi, Abdul-Ghani.

11th Conference on Sustainable Development of Energy, Water and Environment Systems, SDEWES. University of Zagreb, 2016. p. 1-13 0678.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Optimization of anaerobic digestion for mechanically pretreated waste paper

AU - Rodriguez , Cristina

AU - Alaswad, Abed

AU - El-Hassan, Zaki

AU - Olabi, Abdul-Ghani

PY - 2016/10/14

Y1 - 2016/10/14

N2 - The accessibility of microorganisms to the fermentable components in anaerobic digestion is restricted by the complex structure of the lignocellulosic materials, such as paper wastes. In order to reduce the biomass particle size and to increase the feedstock’ specific surface area available to the microorganisms, and therefore improve the methane yield, a beating pre-treatment with a Hollander beater was assessed. The mechanical pretreatment has been applied to a batch of office paper previously shredded and inoculated with sludge from a biogas production plant. The methane yield decreased with increased ratio F/I for all pretreatment times. The methane yield decreased by 5.24% when the paper waste was beated for 30 min and increased by 20.60% for 60 min. A response surface methodology (RSM) was used in order to evaluate the effect of the operational parameters on the methane production. The optimal methane yield of 245.37ml/gVS from the numerical optimisation was found at BT= 55 min and F/I ratio= 0.3, allowing 17% extra methane when compared to the maximum methane production for untreated paper.

AB - The accessibility of microorganisms to the fermentable components in anaerobic digestion is restricted by the complex structure of the lignocellulosic materials, such as paper wastes. In order to reduce the biomass particle size and to increase the feedstock’ specific surface area available to the microorganisms, and therefore improve the methane yield, a beating pre-treatment with a Hollander beater was assessed. The mechanical pretreatment has been applied to a batch of office paper previously shredded and inoculated with sludge from a biogas production plant. The methane yield decreased with increased ratio F/I for all pretreatment times. The methane yield decreased by 5.24% when the paper waste was beated for 30 min and increased by 20.60% for 60 min. A response surface methodology (RSM) was used in order to evaluate the effect of the operational parameters on the methane production. The optimal methane yield of 245.37ml/gVS from the numerical optimisation was found at BT= 55 min and F/I ratio= 0.3, allowing 17% extra methane when compared to the maximum methane production for untreated paper.

M3 - Conference contribution

SP - 1

EP - 13

BT - 11th Conference on Sustainable Development of Energy, Water and Environment Systems, SDEWES

PB - University of Zagreb

ER -

Rodriguez C, Alaswad A, El-Hassan Z, Olabi A-G. Optimization of anaerobic digestion for mechanically pretreated waste paper. In 11th Conference on Sustainable Development of Energy, Water and Environment Systems, SDEWES. University of Zagreb. 2016. p. 1-13. 0678