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Coupling energy-production processes: The use of residues from bioethanol production to improve the anaerobic digestion of corn stover

Published on 2019in Biomass & Bioenergy3.54
· DOI :10.1016/j.biombioe.2019.105322
Méndez-Hernández Jazmín Edith (UAM: Universidad Autónoma Metropolitana), Loera Octavio (UAM: Universidad Autónoma Metropolitana)+ 2 AuthorsSoto-Cruz Nicolás Óscar
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Abstract
Abstract Currently, industry is migrating towards sustainable practises, where the wastes produced in one process are used as feedstock for other productive purposes. In the present study, we show that a by-product from the fabrication of second-generation bioethanol can be used to improve the production of biogas from corn stover. The washing water generated during the pretreatment stage of bioethanol production was recovered and reused as a co-substrate for the anaerobic digestion of corn stover. This water contained high concentrations of lignocellulolytic enzymes that once added to the digester improved the methane production kinetics. In comparison with digestion in the absence of these extra enzymes, the ultimate methane yield (P) increased 42%, with a reduction in the lag-phase time (λ) of 67% and an increase in the methane production rate (Rm) of almost 30%. These results were compared with those obtained during the co-digestion of corn stover and cattle manure, which is a well-known strategy to improve methane yields from lignocellulosic residues. However, despite the fact that the use of cattle manure improved methane yields, the results obtained using the enzyme-rich washing water were significantly better. The present study describes a simple strategy for the revalorisation of a by-product from the production of second-generation bioethanol.
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References42
Newest
Published on Apr 12, 2018in Waste and Biomass Valorization2.36
Jazmín Méndez-Hernández1
Estimated H-index: 1
,
Octavio Loera17
Estimated H-index: 17
(UAM: Universidad Autónoma Metropolitana)
+ 3 AuthorsNicolás Óscar Soto-Cruz1
Estimated H-index: 1
Purpose In this work we studied two approaches for the revalorization of corn stover (CS): Feedstock for bioethanol generation and substrate for the production of biocatalysts. The practical application of two of these biocatalysts (laccases and cellulases) was also evaluated.
Published on Dec 1, 2017in Biotechnology for Biofuels5.45
Jutta Speda4
Estimated H-index: 4
(Linköping University),
Mikaela A. Johansson3
Estimated H-index: 3
(Linköping University)
+ 1 AuthorsMartin Karlsson12
Estimated H-index: 12
(Linköping University)
Abstract Background Enzymatic treatment of lignocellulosic material for increased biogas production has so far focused on pretreatment methods. However, often combinations of enzymes and different physicochemical treatments are necessary to achieve a desired effect. This need for additional energy and chemicals compromises the rationale of using enzymes for low energy treatment to promote biogas production. Therefore, simpler and less energy intensive in situ anaerobic digester treatment with en...
Published on Sep 1, 2017in Renewable & Sustainable Energy Reviews10.56
Kiros Hagos4
Estimated H-index: 4
,
Jianpeng Zong3
Estimated H-index: 3
+ 2 AuthorsXiaohua Lu32
Estimated H-index: 32
Globally, there is increasing awareness that renewable energy and energy efficiency are vital for both creating new economic opportunities and controlling the environmental pollution. AD technology is the biochemical process of biogas production which can change the complex organic materials into a clean and renewable source of energy. AcoD process is a reliable alternative option to resolve the disadvantages of single substrate digestion system related to substrate characteristics and system op...
Published on May 1, 2017in Bioresource Technology6.67
Pablo Daniel Postemsky4
Estimated H-index: 4
(UNS: Universidad Nacional del Sur),
Maximiliano Bidegain2
Estimated H-index: 2
(UNS: Universidad Nacional del Sur)
+ 2 AuthorsMaría Amelia Cubitto9
Estimated H-index: 9
(UNS: Universidad Nacional del Sur)
Abstract Solid-state fermentation was evaluated at the pilot-scale for the bioconversion and valorization of rice husks and straw (RSH), or sunflower seed hulls (SSH), into medicinal mushrooms and crude extracts, with laccase activity. The average mushroom yield was 56 kg dry weight per ton of agro-residues. Laccase activity in crude aqueous extracts showed its maximum value of 10,927 U kg −1 in RSH (day 10, Exudate phase) and 16,442 U kg −1 in SSH (day 5, Full colonization phase), the activity ...
Published on Dec 15, 2016in Energy & Fuels3.02
Muhammad Awais2
Estimated H-index: 2
(Pir Mehr Ali Shah Arid Agriculture University),
Merlin Alvarado-Morales11
Estimated H-index: 11
+ 2 AuthorsIrini Angelidaki70
Estimated H-index: 70
Anaerobic digestion (AD) of animal manure and lignocellulosic residues is gaining increased interest as a result of their wide availability, optimum physicochemical characteristics, high methane potential, and absence of conflict with the human food chain compared to energy crops. The aim of this study was to assess the biomethanation process of two lignocellulosic substrates, wheat straw (WS) and meadow grass (MG), with cattle manure (CM) under thermophilic (53 °C) conditions, focusing on nutri...
Published on Oct 1, 2016in Industrial Crops and Products4.19
María García-Torreiro4
Estimated H-index: 4
(University of Santiago de Compostela),
María López-Abelairas6
Estimated H-index: 6
(University of Santiago de Compostela)
+ 1 AuthorsJ.M. Lema59
Estimated H-index: 59
(University of Santiago de Compostela)
Abstract The biological pretreatment of lignocellulosic biomass for the production of ethanol is an environmentally friendly process that needs to be evaluated with different feedstocks in order to avoid dependence on a single feedstock. In this study, four agricultural residues (corn stover, barley straw, corncob and wheat straw), selected in terms of their composition and geographic availability, were pretreated using the white-rot fungus Irpex lacteus . After the fungal pretreatment, the bigg...
Published on Oct 1, 2016in Bioresource Technology6.67
Xinlei Huang3
Estimated H-index: 3
(Xi'an University of Architecture and Technology),
Sining Yun19
Estimated H-index: 19
(Xi'an University of Architecture and Technology)
+ 3 AuthorsXue Li4
Estimated H-index: 4
(Xi'an University of Architecture and Technology)
Abstract Anaerobic co-digestion of aloe peel waste (APW) with dairy manure (DM) was evaluated in terms of biogas and methane yield, volatile solids (VS) removal rate, and the stability of digestate. Batch experiments were performed under mesophilic condition (36 ± 1 °C) at five different APW/DM wet weight ratios (1:0, 3:1, 1:1, 1:3, and 0:1). Experimental methane yield from the mixtures was higher than the yield from APW or DM alone, indicating the synergistic effect and benefits of co-digestion...
Published on Oct 1, 2016in Water Research7.91
Anna Odnell2
Estimated H-index: 2
(Linköping University),
Michael Recktenwald4
Estimated H-index: 4
(Kemira)
+ 2 AuthorsMartin Karlsson12
Estimated H-index: 12
(Linköping University)
Abstract As an alternative to energy intensive physical methods, enzymatic treatment of sludge produced at wastewater treatment plants for increased hydrolysis and biogas production was investigated. Several hydrolytic enzymes were assessed with a focus on how enzyme activity and life time was influenced by sludge environments. It could be concluded that the activity life time of added enzymes was limited ( in situ experiments, subtilisin at a 1% mixture on basis of volatile solids, was the only...
Published on Oct 1, 2016in Applied Energy8.43
Ahmed M. Mustafa3
Estimated H-index: 3
(ZJU: Zhejiang University),
Tjalfe G. Poulsen23
Estimated H-index: 23
(Xi'an Jiaotong-Liverpool University),
Kuichuan Sheng14
Estimated H-index: 14
(ZJU: Zhejiang University)
Rice straw was subjected to fungal pretreatment using Pleurotus ostreatus and Trichoderma reesei to improve its biodegradability and methane production via solid-state anaerobic digestion (SS-AD). Effects of moisture content (65%, 75% and 85%), and incubation time (10, 20 and 30d) on lignin, cellulose, and hemicellulose degradation during fungal pretreatment and methane yield during anaerobic digestion were assessed via comparison to untreated rice straw. Pretreatment with P. ostreatus was most ...
Published on Mar 1, 2016in Bioresource Technology6.67
Liane Müller1
Estimated H-index: 1
,
Jörg Kretzschmar4
Estimated H-index: 4
+ 3 AuthorsFrank Scholwin5
Estimated H-index: 5
(University of Rostock)
Abstract The aim of this study was to investigate the biochemical disintegration effect of hydrolytic enzymes in lab scale experiments. Influences of enzyme addition on the biogas yield as well as effects on the process stability were examined. The addition of proteases occurred with low and high dosages in batch and semi-continuous biogas tests. The feed mixture consisted of maize silage, chicken dung and cow manure. Only very high concentrated enzymes caused an increase in biogas production in...
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