Integrated Economic and Environmental Assessment of Biogas and Bioethanol Production from Cassava Cellulosic Waste

Trakulvichean, Sivalee; Chaiprasert, Pawinee; Otmakhova, Yulia; Songkasiri, Warinthorn

doi:10.1007/s12649-017-0076-x

Cited by 31 publications

(23 citation statements)

References 14 publications

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“…This could, for example, be done through technological improvements and pretreatment of biomass leading to more product extraction (see [45,46]). The importance of valorisation in biorefineries is discussed by Trakulvichean et al [47], who have studied the valorisation of cassava cellulosic waste to increase value in starch factories. Their environmental and financial assessment concludes that using this waste for biogas production generating heat gives the best net present value, including environmental costs.…”

Section: Discussionmentioning

confidence: 99%

Assessment of By-product Valorisation in a Swedish Wheat-Based Biorefinery

Hagman

Eklund

Svensson

2019

Waste Biomass Valor

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Biorefineries are examples of industries striving towards a circular and bio-based economy through valorising natural raw materials to a spectrum of products. This is a resource-efficient process which also decreases overall environmental impact, as the products from a biorefinery can replace fossil-based products such as plastics or fuels. To become even more resource efficient, an optimisation of the by-product use can increase the performance. This study will evaluate different scenarios for the valorisation of stillage coming from a wheat-based biorefinery. The alternatives range from the direct use of the stillage for fodder, fertiliser or incineration to three different biogas production-based scenarios. The biogas scenarios are divided into the production of fuel at a local or distant plant and the alternative of creating heat and power at the local plant. The results show how locally produced biogas for vehicle fuel and fodder usage are the better alternatives regarding greenhouse gas emissions, the finances of the biorefinery, energy balance and nutrient recycling. The results also indicate that biorefineries with several high-value products may receive lower quality by-product flows, and to these, the biogas solutions become more relevant for valorising stillage while improving value and performance for the biorefinery. Graphical AbstractKeywords Biorefinery · Upcycling · Waste · Biogas · Fodder

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Section: Discussionmentioning

confidence: 99%

Assessment of By-product Valorisation in a Swedish Wheat-Based Biorefinery

Hagman

Eklund

Svensson

2019

Waste Biomass Valor

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“…These wastes are mainly composed of cellulose, lignin, and hemicellulose, and are known as vegetable biomass or lignocellulosic biomass. There are multiple applications for each of these constituent fractions: active carbons [ 2 ], composites [ 3 ], levulinic acid production [ 4 ], thermal insulating materials [ 5 ], viscose [ 6 ], materials for the treatment of wastewater [ 7 ], edible coatings [ 8 ], furfural and hydroxymethylfurfural production [ 9 ], the formation of thermoplastics and flexible films [ 10 ], obtaining prebiotics applicable in the food industry [ 11 ], acid dyes absorbents [ 12 ], food additives and nutraceuticals [ 13 ], energy, fuels, synthesis gas, macromolecules, and aromatic compounds [ 14 , 15 , 16 ] and composites [ 17 , 18 ], among others.…”

Section: Introductionmentioning

confidence: 99%

Study on the Macro and Micromechanics Tensile Strength Properties of Orange Tree Pruning Fiber as Sustainable Reinforcement on Bio-Polyethylene Compared to Oil-Derived Polymers and Its Composites

et al. 2020

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Agroforestry creates value but also a huge amount of waste outside its value chain. Tree pruning is an example of such a low value waste, that is typically discarded or incinerated in the fields or used to recover energy. Nonetheless, tree prunings are rich in wood fibers that can be used as polymer reinforcement. Although there are some bio-based polymers, the majority of industries use oil-based ones. The election of the materials is usually based on a ratio between properties and cost. Bio-based polymers are more expensive than oil-based ones. This work shows how a bio-polyethylene matrix can be reinforced with fibers from orange tree prunings to obtain materials with notable tensile properties. These bio-based materials can show a balanced cost due to the use of a cheap reinforcement with an expensive matrix. The matrix used showed a tensile strength of 18.65 MPa, which reached 42.54 MPa after the addition of 50 wt.% of reinforcement. The obtained values allow the use of the studied composite to replace polypropylene and some of its composites under tensile loads.

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“…In 2020. Thailand has cassava starch factories in operation and they generate a total of 10.5 million t/y of wet pulp, and 35.1 million m /y of wastewater from the production process (Trakulvichean et al, 2019). The number includes both native and modified starch factories.…”

Section: Methodsmentioning

confidence: 99%

“…However, the factories are not entirely satisfied with the current cassava pulp utilization and disposal options because the cassava pulp still has high starch content, which they view as a loss to them, even though odor is a constant problem. Biogas generation from cassava pulp is one option to solve these problems (Thai Customs Department, 2019;Trakulvichean, 2017Trakulvichean, , 2019Yimmongkol and Jattupornpong, 2007).…”

Section: Economic Impactmentioning

confidence: 99%

Implementing Circular Economy Concept by Converting Cassava Pulp and Wastewater to Biogas for Sustainable Production in Starch Industry

Lerdlattaporn

Phalakornkule

Trakulvichean

et al. 2020

Preprint

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This research integrated the circular economy (CE) concept in the cassava starch industry in Thailand, and revealed the benefits of biogas generation from both the wastewater and waste cassava pulp with a focus on the identification and analysis of the key drivers and challenges to increase the efficiency of the biogas system. The research methodology applied the CE concept for scenarios of cassava pulp utilization for biogas production, compared to the no waste treatment and anaerobic wastewater treatment scenarios, in termsof an economic assessment, resource efficiency, water recovery, land use, and global warming potential. Proposed options mainly involved the conservation of energy, water, land use, and reduction of greenhouse gases emissions. These included the reuse and recycling of water and use of biogas to substitute for fuel oil for burners and electricity in the cassava starch production process.

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Integrated Economic and Environmental Assessment of Biogas and Bioethanol Production from Cassava Cellulosic Waste

Cited by 31 publications

References 14 publications

Assessment of By-product Valorisation in a Swedish Wheat-Based Biorefinery

Assessment of By-product Valorisation in a Swedish Wheat-Based Biorefinery

Study on the Macro and Micromechanics Tensile Strength Properties of Orange Tree Pruning Fiber as Sustainable Reinforcement on Bio-Polyethylene Compared to Oil-Derived Polymers and Its Composites

Implementing Circular Economy Concept by Converting Cassava Pulp and Wastewater to Biogas for Sustainable Production in Starch Industry

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