Reutilisation of food wastes for generating fuels and value added products: A global review

Melikoğlu, Mehmet

doi:10.1016/j.eti.2020.101040

Cited by 38 publications

(11 citation statements)

References 128 publications

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“…It offers economic advantages and eliminates the nuisance generated by the decomposition of organic waste in the surroundings and landfills (Bilal & Iqbal, 2019 ). Bioconversion strategies for wet waste have already been reviewed in detail (Engelberth, 2020 ; Melikoglu, 2020 ; Sindhu et al, 2019 ), so that this review would analyze the latest bioconversion strategies from a product perspective, (1) Biofuels: including gaseous biofuels (hydrogen, methane, and biohythane), liquid fuels (ethanol, butanol, biodiesel), and microbial fuel cells; (2) value-added chemicals: including liquid chemicals (organic acids such as volatile fatty acids (VFAs), medium-chain and long-chain fatty acids, lactic acid, citric acid, etc. ; biosurfactants; sugars such as glucose, D-tagatose, D-mannose, etc.…”

Section: Resource Recovery and Valorizationmentioning

confidence: 99%

Source separation, transportation, pretreatment, and valorization of municipal solid waste: a critical review

Zhang

Liu

Chen

et al. 2021

Environ Dev Sustain

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Section: Resource Recovery and Valorizationmentioning

confidence: 99%

Source separation, transportation, pretreatment, and valorization of municipal solid waste: a critical review

Zhang

Liu

Chen

et al. 2021

Environ Dev Sustain

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“…Although biological conversion methods such as fermentation have been widely used in the promotion of food waste, recent attention has been focused on thermochemical conversion. Thermochemical processes can be applied for the conversion of municipal food waste to aromatic chars with enhanced calorific content for use as solid fuel in combustion plants [8]. In this study, thermochemical processes such as hydrothermal carbonization (HTC) [9], pyrolysis (PY) [10], and microwave assisted pyrolysis (MW) [11] were employed in the production of char from food waste.…”

Section: Introductionmentioning

confidence: 99%

Comparative Investigation of the Physicochemical Properties of Chars Produced by Hydrothermal Carbonization, Pyrolysis, and Microwave-Induced Pyrolysis of Food Waste

et al. 2022

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This work presents a comparative study of the physicochemical properties of chars derived by three thermochemical pathways, namely: hydrothermal carbonization, HTC (at 180, 200 and 220 °C), pyrolysis, PY, (at 500, 600 and 700 °C) and microwave assisted pyrolysis, MW (at 300, 450 and 600 W). The mass yield of HTC samples showed a decrease (78.7 to 26.7%) as the HTC temperature increased from 180 to 220 °C. A similar decreasing trend in the mass yield was also observed after PY (28.45 to 26.67%) and MW (56.45 to 22.44%) of the food waste mixture from 500 to 700 °C and 300 to 600 W, respectively. The calorific value analysis shows that the best among the chars prepared by three different heating methods may be ranked according to the decreasing value of the heating value as: PY500, MW300, and HTC180. Similarly, a decreasing trend in H/C values was observed as: PY500 (0.887), MW300 (0.306), and HTC180 (0.013). The scanning electron microscope (SEM) analyses revealed that the structure of the three chars was distinct due to the different temperature gradients provided by the thermochemical processes. The results clearly show that the suitable temperature for the HTC and PY of food waste was 180 °C and 500 °C, respectively, while the suitable power for the MW of food waste was 300 W.

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“…Along with the increase in productivity, the reduction in food grain wastage, post-harvest losses, and losses incurred at various stages of the food supply chain will play a major role in dealing with food insecurity. According to a report released by the Food and Agriculture Organization (FAO) in 2020, about one-third of the produced food (almost 1.3 billion tonnes) is lost every year [4,5]. In developing countries, about 30-40% of total food production is lost mostly at post-harvest and processing levels, while in developed countries the same value is lost at retail and consumer levels [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Recent Advancements in Technical Design and Thermal Performance Enhancement of Solar Greenhouse Dryers

Gorjian

Hosseingholilou

Jathar³

et al. 2021

Sustainability

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The food industry is responsible for supplying the food demand of the ever-increasing global population. The food chain is one of the major contributors to greenhouse gas (GHG) emissions, and global food waste accounts for one-third of produced food. A solution to this problem is preserving crops, vegetables, and fruits with the help of an ancient method of sun drying. For drying agricultural and marine products, several types of dryers are also being developed. However, they require a large amount of energy supplied conventionally from pollutant energy sources. The environmental concerns and depletion risks of fossil fuels persuade researchers and developers to seek alternative solutions. To perform drying applications, sustainable solar power may be effective because it is highly accessible in most regions of the world. Greenhouse dryers (GHDs) are simple facilities that can provide large capacities for drying agricultural products. This study reviews the integration of GHDs with different solar technologies, including photovoltaic (PV), photovoltaic-thermal (PVT), and solar thermal collectors. Additionally, the integration of solar-assisted greenhouse dryers (SGHDs) with heat pumps and thermal energy storage (TES) units, as well as their hybrid configuration considering integration with other renewable energy sources, is investigated to improve their thermal performance. In this regard, this review presents and discusses the most recent advances in this field. Additionally, the economic analysis of SGHDs is presented as a key factor to make these sustainable facilities commercially available.

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Reutilisation of food wastes for generating fuels and value added products: A global review

Cited by 38 publications

References 128 publications

Source separation, transportation, pretreatment, and valorization of municipal solid waste: a critical review

Source separation, transportation, pretreatment, and valorization of municipal solid waste: a critical review

Comparative Investigation of the Physicochemical Properties of Chars Produced by Hydrothermal Carbonization, Pyrolysis, and Microwave-Induced Pyrolysis of Food Waste

Recent Advancements in Technical Design and Thermal Performance Enhancement of Solar Greenhouse Dryers

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