Anaerobic digestion of food waste for bio-energy production in China and Southeast Asia: A review

Negri, Camilla; Ricci, M.; Zilio, Massimo; D’Imporzano, Giuliana; Qiao, Wei; Dong, Renjie; Adani, Fabrizio

doi:10.1016/j.rser.2020.110138

Cited by 150 publications

(39 citation statements)

References 192 publications

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“…Nonetheless economic aspects regarding PHA production should also be considered further. PHA are currently sold at price of 3.4 € kg −1 (Villegas et al, 2018) that allows greatly increasing total income from the sole production of methane from organic waste that is not sustainable from an economic point of view unless in presence of government benefits (Negri et al, 2020).…”

Section: Energy Output Of Ofmsw From Biomethane and Pha Productionmentioning

confidence: 99%

Implementing polyhydroxyalkanoates production to anaerobic digestion of organic fraction of municipal solid waste to diversify products and increase total energy recovery

Papa

Sciarria

Carrara

et al. 2020

Bioresource Technology

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A simple biorefinery aimed at producing both biomethane (CH4) and polyhydroxyalkanoates (PHAs), was proposed to valorize the organic fraction of municipal solid waste (OFMSW). Anaerobic digestion (AD) was tested at different organic loading rates (OLR-I-II-III) (i.e. 3, 4 and 6 g L-1 d-1 , respectively), producing biomethane and volatile fatty acids (VFAs)-rich digestate, the VFAs were then used to produce PHAs. Specific biogas and CH4 production remained similar when adopting different OLRs (biogas of 522-600 NL kg-1 VS and CH4 of 64-67% v/v). VFAs concentrated with OLR increases and their patterns were modified. PHA production was in the range of 117-199 g kg-1 OFMSWTS with the lowest production being associated to different polymer composition.

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Section: Energy Output Of Ofmsw From Biomethane and Pha Productionmentioning

confidence: 99%

Implementing polyhydroxyalkanoates production to anaerobic digestion of organic fraction of municipal solid waste to diversify products and increase total energy recovery

Papa

Sciarria

Carrara

et al. 2020

Bioresource Technology

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“…The widespread large-scale application and predominance of the conventional singlestage digestion system arises from their decreased operational costs and complexity [20,21]. However, pilot-scale case studies have revealed that the two-stage system operation results in a higher overall degradation efficiency and, thus, higher biogas production in comparison to the single stage [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Assessment of Single- vs. Two-Stage Process for the Anaerobic Digestion of Liquid Cow Manure and Cheese Whey

et al. 2021

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The growing interest in processes that involve biomass conversion to renewable energy, such as anaerobic digestion, has stimulated research in this field in order to assess the optimum conditions for biogas production from abundant feedstocks, like agro-industrial wastes. Anaerobic digestion is an attractive process for the decomposition of organic wastes via a complex microbial consortium and subsequent conversion of metabolic intermediates to hydrogen and methane. The present study focused on the exploitation of liquid cow manure (LCM) and cheese whey (CW) as noneasily and easily biodegradable sources, respectively, using continuous stirred-tank reactors for biogas production, and a comparison was presented between single- and two-stage anaerobic digestion systems. No significant differences were found concerning LCM treatment, in a two-stage system compared to a single one, concluding that LCM can be treated by implementing a single-stage process, as a recalcitrant substrate, with the greatest methane production rate of 0.67 L CH4/(LR·d) at an HRT of 16 d. On the other hand, using the easily biodegradable CW as a monosubstrate, the two-stage process was considered a better treatment system compared to a single one. During the single-stage process, operational problems were observed due to the limited buffering capacity of CW. However, the two-stage anaerobic digestion of CW produced a stable methane production rate of 0.68 L CH4/(LR·d) or 13.7 L CH4/Lfeed, while the total COD was removed by 76%.

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“…There are many examples showing how the agriculture and forestry sectors can devise management approaches that enable biomass production and use for energy in conjunction with supply of food, construction timber and other bio‐based products, while avoiding further conversion of natural ecosystems. Principal means include changes in agriculture practices to increase cropping intensities and yields and improve livestock productivity (Andrade et al, 2017; Brinkman et al, 2021; Cassman & Grassini, 2020; de Souza et al, 2019; Gerssen‐Gondelach et al, 2017; Ramírez‐Contreras et al, 2021), forest management practices enabling biomass harvest for energy (Dale et al, 2017; Ghaffariyan et al, 2017; Spinelli, 2019), and changes to industrial processes to improve biomass conversion efficiencies and use residues and waste to meet internal process energy needs and produce fuels, electricity and heat for use outside the industry (Hagman et al, 2018; Isaksson et al, 2012; Negri et al, 2020; Pettersson & Harvey, 2012). Furthermore, new biomass production systems can be integrated with existing agriculture and forestry systems (incl.…”

Section: The Potential Co‐benefits and Adverse Side Effects Of Bioenergy Systemsmentioning

confidence: 99%

Bioenergy for climate change mitigation: Scale and sustainability

et al. 2021

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Many global climate change mitigation pathways presented in IPCC assessment reports rely heavily on the deployment of bioenergy, often used in conjunction with carbon capture and storage. We review the literature on bioenergy use for climate change mitigation, including studies that use top‐down integrated assessment models or bottom‐up modelling, and studies that do not rely on modelling. We summarize the state of knowledge concerning potential co‐benefits and adverse side effects of bioenergy systems and discuss limitations of modelling studies used to analyse consequences of bioenergy expansion. The implications of bioenergy supply on mitigation and other sustainability criteria are context dependent and influenced by feedstock, management regime, climatic region, scale of deployment and how bioenergy alters energy systems and land use. Depending on previous land use, widespread deployment of monoculture plantations may contribute to mitigation but can cause negative impacts across a range of other sustainability criteria. Strategic integration of new biomass supply systems into existing agriculture and forest landscapes may result in less mitigation but can contribute positively to other sustainability objectives. There is considerable variation in evaluations of how sustainability challenges evolve as the scale of bioenergy deployment increases, due to limitations of existing models, and uncertainty over the future context with respect to the many variables that influence alternative uses of biomass and land. Integrative policies, coordinated institutions and improved governance mechanisms to enhance co‐benefits and minimize adverse side effects can reduce the risks of large‐scale deployment of bioenergy. Further, conservation and efficiency measures for energy, land and biomass can support greater flexibility in achieving climate change mitigation and adaptation.

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Anaerobic digestion of food waste for bio-energy production in China and Southeast Asia: A review

Cited by 150 publications

References 192 publications

Implementing polyhydroxyalkanoates production to anaerobic digestion of organic fraction of municipal solid waste to diversify products and increase total energy recovery

Implementing polyhydroxyalkanoates production to anaerobic digestion of organic fraction of municipal solid waste to diversify products and increase total energy recovery

Assessment of Single- vs. Two-Stage Process for the Anaerobic Digestion of Liquid Cow Manure and Cheese Whey

Bioenergy for climate change mitigation: Scale and sustainability

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