Kitchen waste: sustainable bioconversion to value-added product and economic challenges

Sharma, Archita; Kuthiala, Tanya; Thakur, Kritika; Thatai, Karan Singh; Singh, Gursharan; Kumar, Pawan; Arya, Shailendra Kumar

doi:10.1007/s13399-022-02473-6

Cited by 10 publications

(4 citation statements)

References 156 publications

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“…The main source of animal-derived waste in the production and manufacturing stage is slaughterhouses, while that for the consumption phase is individual households. This type of waste is a rich source of organic components such as proteins, collagens, polysaccharides [24], lipids [33], and inorganic compounds primarily in the form of calcium phosphate (57.35%) [24,34]. For example, animal bone contains 53% calcium (Ca), 24% phosphorus (P), 8% boron (B), 6% silicon (Si), 3% sodium (Na), 2% chlorine (Cl), 1.7% sulfur (S), 1.6% potassium (K), and 1.4% magnesium (Mg), while aluminum (Al), iron (Fe), zinc (Zn), manganese (Mn), and copper (Cu) are present at less than 0.4% each [35].…”

Section: Characteristics Of Animal-derived Wastementioning

confidence: 99%

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Thermochemical Conversion of Animal-Derived Waste: A Mini-Review with a Focus on Chicken Bone Waste

Macavei,

Gheorghe,

Ionescu

et al. 2024

Processes

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Food waste, particularly animal-derived waste, presents a significant challenge globally, prompting the need for sustainable management strategies. In 2022, the amount of food waste per capita reached 131 kg/capita in the EU (European Union), which is why the search for environmentally friendly ways to manage food waste through thermochemical conversion processes has gained momentum in recent years. Animal-derived waste is a good source of organic matter (proteins, lipids, and polysaccharides) and mineral compounds (calcium phosphate, mostly hydroxyapatite). This composition makes animal-derived waste valuable for the extraction of chemical compounds, such as hydroxyapatite (HAp), which constitutes up to 70 wt% of animal bones; keratin; collagen; and hyaluronic acid (HA), to produce pharmaceutical, medical, or industrial by-products. The thermochemical conversion of chicken bones through pyrolysis and gasification creates a new opportunity to valorize this type of waste by reintroducing valuable by-products into the economy and thus achieving sustainable waste management objectives. The results of this study showcase the multiple applications of the pyrolysis of chicken bone waste products (as adsorbents in aqueous mediums, catalysts, fertilizers, and biomedical applications) and the necessity of a better exploration of the gasification process of chicken bone waste. Therefore, this study explores the properties of animal-derived waste and discusses the pyrolysis and gasification of chicken bone waste, the influence of process conditions on product yields, and the catalytic enhancement of these thermochemical processes.

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Section: Characteristics Of Animal-derived Wastementioning

confidence: 99%

“…Kitchen waste provides a complex mixture of animal-derived waste, dairy products, various plant components (cereals, fruits, vegetables, roots, etc.) [33], and seafood obtained from households and restaurants. This composition creates an organic environment rich in proteins, carbohydrates, and lipids [45].…”

Section: Characteristics Of Animal-derived Wastementioning

confidence: 99%

Thermochemical Conversion of Animal-Derived Waste: A Mini-Review with a Focus on Chicken Bone Waste

Macavei,

Gheorghe,

Ionescu

et al. 2024

Processes

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“…With the development of the global economy and the rising consumption level of life, food waste (FW) treatment has become a global problem. It severely challenges the environment, economy, and society [1,2]. Achieving sustainability in FW treatment is essential to promote public health, resource availability, and ecological benefits.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of Hydrodynamic Cavitation Pretreatment of Food Waste: Effect of Pressure Drop on the Cavitation Behavior

Zhou,

Zhong,

Zhu

2024

Processes

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Hydrodynamic cavitation (HC) has a wide range of application scenarios. However, there are few studies on the HC treatment of food waste (FW). A Venturi device is designed and operated and plays a clear role in changing the characteristics of FW. The medium viscosity is often neglected when studying cavitation behavior by numerical simulations. We use the Herschel–Bulkley model to describe the viscosity curves of artificial FW samples obtained experimentally. RANS numerical simulation is carried out with a simplified 2D axisymmetric CFD-based model considering the non-Newtonian fluid properties. A numerical simulation study is carried out for FW (TS = 10.0 wt%) at pressure drop (ΔP = 0.05–0.4 MPa). The numerical simulation results show the variation of flow characteristics, viscosity, vapor volume, turbulent viscosity ratio, cavitation number, and pressure loss coefficient. With the increase in ΔP, the flow rate in the Venturi throat increases, and the average viscosity decreases. It reduces the inhibition effect of viscosity on cavitation. The position of incipient vacuoles at the moment of cavitation is constant and unrelated to the variation of ΔP. Under the effect of increasing ΔP, the average vapor volume fraction is increased, and the cavitation effect is enhanced; the cavitation number (σ) is decreased, and the cavitation potential is improved. A larger ΔP should be selected to increase the cavitation efficiency E of the device.

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“…Kitchen waste and food waste contain a high level of organic matter and fertilizer nutrients. For this reason, FW has potential economic value for the production of fertilizer [13].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Kitchen Waste Recycling as Organic N-Fertiliser for Sustainable Agriculture under Cool and Warm Seasons

et al. 2023

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Kitchen waste could be processed and recycled into safe fertilizers/soil improvers for sustainable agriculture through different methods: (1) Dried pellets from model kitchen waste treated with anaerobic effective microorganisms; and (2) Anaerobically digested kitchen waste. For comparison, a commercial mineral fertilizer was used. These methods were applied in two separate glasshouse experiments: one under cool (mainly winter) conditions (X–IV) and one under warm (mainly summer) conditions (VI–X) consisting of 3–4 subsequent harvests in northern Poland. Comparing the food waste agronomic performance after anaerobic digestion and effective microorganism treatments, especially under different climatic conditions, is a novel approach. Kitchen waste served as a much better fertilizer than mineral fertilizer, but only during the cool season. In addition, it provided 20–40% more plant yields for dosages >120 kg N/ha and a similar N uptake. In the warm season, in comparison to effective microorganism-incubated kitchen waste, its anaerobic digestion improved the relative agronomic effectiveness twice after 30 days of growth (82% versus 43%). However, the total effectiveness for anaerobically digested kitchen waste versus pelleted and effective microorganism-incubated kitchen waste was 32% versus 27% (N utilization-wise) and 36% versus 21% (plant biomass yield-wise). The Monod kinetic model was applied for the internal efficiency of N utilization; for the best fitting procedure, R2 > 0.96 for the cool season and R2 > 0.92 for the warm season. Kitchen waste introduced to the soil provided better soil properties than mineral fertilizer. The study contributes to the biological systems for waste recycling in agriculture, bioproduction processes, and the global food chain.

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Kitchen waste: sustainable bioconversion to value-added product and economic challenges

Cited by 10 publications

References 156 publications

Thermochemical Conversion of Animal-Derived Waste: A Mini-Review with a Focus on Chicken Bone Waste

Thermochemical Conversion of Animal-Derived Waste: A Mini-Review with a Focus on Chicken Bone Waste

Numerical Study of Hydrodynamic Cavitation Pretreatment of Food Waste: Effect of Pressure Drop on the Cavitation Behavior

Evaluation of Kitchen Waste Recycling as Organic N-Fertiliser for Sustainable Agriculture under Cool and Warm Seasons

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