Technologies for the utilisation of biogenic waste in the bioeconomy

O’Callaghan, Kenneth

doi:10.1016/j.foodchem.2015.11.030

Cited by 50 publications

(21 citation statements)

References 83 publications

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“…There is an emerging recognition in bioeconomy literature around the potential to reconceptualise and repurpose bio-technologies/processes (which my be otherwise, just framed in the conversion/exploitation of biogenic resources and wastes [168][169][170]), in order to contribute toward resolving the ubiquitous challenges of excessive urbanisation, diminishing biodiversity, resource exploitation, post-fossil energy and chemical transition, and climate change and inequitable and unsustainable economic development [171][172][173][174]. For example, by cascading levels of extraction of, initially high-value-added chemicals and products, then bio-materials and finally 100% (aka zero waste [168,[175][176][177]) bioprocessing of residual biomass and further a CO 2 biosequestration, closed loop, zero emission bio-refinery [178][179][180].…”

Section: Zero Waste: Formation Convergence Circularity and Critiquementioning

confidence: 99%

“…Specifically, positive sustainable development opportunities are variously attributed to enhancing: global [167], national, regional [176,181,186], local and SME scales of the bioeconomy [168,187], as well as specific bioeconomic sectors [188,189]. In additon, a spectrum of industry reporting and academic literature is now emerging around keynote organisations [166], strategies, technologies [169,175], production [190] and product [174,190] level bioeconomy initiatives.…”

Section: Zero Waste: Formation Convergence Circularity and Critiquementioning

confidence: 99%

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Exploring the Phenomenon of Zero Waste and Future Cities

Hannon

Zaman

2018

Urban Science

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Abstract:The evolving phenomenon of zero waste encompasses the theory, practice, and learning of individuals, families, businesses, communities, and government organisations, responding to perceptions of crisis and failure around conventional waste management. The diverse and growing body of international zero waste experience, can be portrayed as both, an entirely new and alternative waste management paradigm, and or, interpreted as overlapping, extending, and synergetic with a general evolution towards more sustainable waste/resource management practices. Combining the terms zero and waste provokes creative, intellectual, and pragmatic tensions, which provide a contemporary axis for necessary debate and innovation in this sphere of resource management. This commentary draws on an interdisciplinary perspective and utilises some elements of the critique of zero waste, as a lens to examine and better understand this heterogeneous global community of practice. In particular, how the concept and implementation of a zero waste goal can increase community engagement and be a catalyst for the design and management of a more circular urban metabolism and hence, more adaptive, resilient, and sustainable future (zero waste) cities.

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Section: Zero Waste: Formation Convergence Circularity and Critiquementioning

confidence: 99%

Section: Zero Waste: Formation Convergence Circularity and Critiquementioning

confidence: 99%

Exploring the Phenomenon of Zero Waste and Future Cities

Hannon

Zaman

2018

Urban Science

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“…Among the different substrates, the use of an organic fraction from urban and/or agricultural waste has attracted the attention of experts driven by the principles of a circular (and sustainable) economy ( [11,12] and references therein). Furthermore, the current principal environmental exploitation of biowaste (intended as: biodegradable garden and park waste, food and kitchen waste from households, restaurants, caterers, and retail premises, and comparable waste from food processing plants) in the European Union (EU) is the production of methane (a greenhouse gas) from decomposing processes in landfills [3,13].…”

Section: Introductionmentioning

confidence: 99%

“…In this context, composting consists of an (an)aerobic biological process for decomposing the organic fraction into a more stabilized material with different properties that depend on the initial composition [11] and composting methodologies.…”

Section: Introductionmentioning

confidence: 99%

Isolation, Characterization, and Environmental Application of Bio-Based Materials as Auxiliaries in Photocatalytic Processes

et al. 2018

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Sustainable alternative substrates for advanced applications represent an increasing field of research that attracts the attention of worldwide experts (in accordance with green chemistry principles). In this context, bio-based substances (BBS) isolated from urban composted biowaste were purified and characterized. Additionally, these materials were tested as auxiliaries in advanced oxidizing photocatalytic processes for the abatement of organic contaminants in aqueous medium. Results highlighted the capability of these substances to enhance efficiency in water remediation treatments under mild conditions, favoring the entire light-driven photocatalytic process.

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“…Biorefineries provide fuels and chemicals for use in transportation and various industries, solving some thorny environmental and energy problems at the same time (O'Callaghan 2016;Sadhukhan et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Analysis of Hydrolyzates Produced from Cellulose Catalyzed by Carbonaceous Solid Acid in an Ionic Liquid

Liu

Zhou

et al. 2016

BioResources

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The hydrolysis of cellulose using carbonaceous solid acid (CSA) in an ionic liquid was studied. The types and concentrations of products generated during the hydrolysis of the cellulose under different conditions, including temperature, reaction time, water addition, and recycle time, were investigated. The CSA prepared in the study contained 1.45 mmol/g of acidic groups, which was higher than the theoretical amount of sulfonic groups. The highest yields of total reducing sugars (TRS) and glucose were obtained at 5% water content, 6 h of reaction time, and 140 °C. The cellulose was hydrolyzed effectively via catalysis of CSA in [AMIM][Cl] with a low water content. Analysis of the products under different conditions in this work provides a strong basis for the full use of hydrolyzed cellulose. Sciences, Guangzhou 510640, China; c: Collaborative Innovation Centre of Biomass Energy, Zhengzhou, 450002, China; *Corresponding author: qiwei@ms.giec.ac.cn Keywords: Carbonaceous solid acid; Hydrolysis; Cellulose; Ionic liquid Contact information: a: State Key laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China; b: Guangzhou Institute of Energy Conversion, Key Laboratory of Renewable Energy, Chinese Academy of INTRODUCTIONBiorefineries, which use raw materials including industrial and agricultural waste, urban garbage, and other environmental benign feedstocks instead of fossil fuels, have been receiving increased attention (Cardoen et al. 2015;Kamm et al. 2016;Papendiek et al. 2016). Biorefineries provide fuels and chemicals for use in transportation and various industries, solving some thorny environmental and energy problems at the same time (O'Callaghan 2016;Sadhukhan et al. 2016).Cellulose usually has the dominant content in the lignocellulosic biomass. It is a highly crystalline polymer (Bai et al. 2014) connected by β-glycosidic linkages (Rinaldi et al. 2008). Suganuma et al. (2008) applied a carbon material bearing SO3H groups to cellulose hydrolysis under hydrothermal conditions, which avoided recovery problems and high energy input of traditional mineral acid catalysts (Namchot et al. 2014). The yields of glucose and β-1,4 glucan were 4% and 64%, respectively, while the yields of the experimental group catalyzed by sulfuric acid were 10% and 38% under the same conditions, respectively. Thus, carbon-based solid acid (CSA) can replace mineral acid as the catalyst for the hydrolysis of cellulose; however, further research is needed to enhance the hydrolysis efficiency and yield of desired products.Glucans consist of more than 30 anhydroglucose units (AGU) and are insoluble in most common solvents (Percival Zhang et al. 2006) (Dutta et al. 2013;Liu et al. 2013;Lian et al. 2014). Interesting results were recorded in particular reactions catalyzed by CSA (Guo et al. 2012b;Bai et al. 2014). Furthermore, the types and contents of chemicals in the hydrolysate should be quantified. There have also been studies producing certain chemicals, especially 5-hydroxymethylfurfural (5-HMF) (Guo...

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Technologies for the utilisation of biogenic waste in the bioeconomy

Cited by 50 publications

References 83 publications

Exploring the Phenomenon of Zero Waste and Future Cities

Exploring the Phenomenon of Zero Waste and Future Cities

Isolation, Characterization, and Environmental Application of Bio-Based Materials as Auxiliaries in Photocatalytic Processes

Analysis of Hydrolyzates Produced from Cellulose Catalyzed by Carbonaceous Solid Acid in an Ionic Liquid

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