Technologically significant properties of municipal solid waste compost

Kozlov, Grigorii; Pushkarev, Mikhail; Данилович, Д. П.; Гарабаджиу, А. В.

doi:10.1051/e3sconf/202017512015

Cited by 13 publications

(6 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Our expressions for an infinitely small element in a state of volumetric compression, taking into account the anisotropic properties of hay, are similar to the expressions for a plane stress state. Therefore, the expressions of the direct and inverse Hooke laws are applied for a plane stress state and have the following form [9]: (6) where E-modulus of elasticity, Pa; μ -Poisson's ratio; -radial stress, Pa; To compose the conditions for the unambiguity of displacements, we substitute the geometric relations (4) in the formula of the Hooke law for a plane stress state and obtain the following equation: (7) Integrating and solving it, we obtain the final expression for stresses and radial displacement [10]: (8) where (9) k 1the ratio of the radial size of the roll with the size of the core); k 2 -the ratio of the radial size of the roll with the current radius. Pressure p 2 having some effect on the outside of the roll significantly exceeds elastic pressure of hayp 1 in the middle of the roll.…”

Section: Methodsmentioning

confidence: 99%

“…Pressure p 2 having some effect on the outside of the roll significantly exceeds elastic pressure of hayp 1 in the middle of the roll. Therefore, for approximate calculations, one can consider the effect of pressure p1 tending to zero and then the formula for radial stress takes the following form: (10) The resulting formula expresses the dependence of the radial compression stresses inside the roll on the pressing. It should be noted that the stress values largely depend on the location inside the roll, the highest stresses occur in the periphery of the roll and the smallest ones can be found in the core.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

The study of forming a roll of pressed hay and the influence of its density on quality parameters

et al. 2020

View full text Add to dashboard Cite

Hay is one of the most valuable types of roughage in the diet of ruminants. During the winter period, animals get about half of the nutrients and digestible protein from hay. Leguminous-cereal hay is rich in protein, minerals, carbohydrates, vitamins. When harvesting hay in rolls, balers with a constant-volume pressure chamber are most often used. The roll forming process consists in continuously winding the flow of plant mass onto the core to a predetermined diameter. The process of roll formation occurs due to the gradual compaction of the roll from the outside, as a result of which rolls with a low density core are formed. Studies have shown that hay compaction from the outside leads to the fact that pressure transfer from the outer layers to the inner layers occurs with some delay (stress relaxation) and the location of stems in this case will have some significant effect on the density of hay inside the roll. Experimental studies have shown that the density of hay inside the roll also varies as for the width of the roll. In the middle part of the roll (in width), the density of hay is 2 to 3 times higher than along its edges, the zone of increased density is 0.7 m, which is 44 % of the width of the roll.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

The study of forming a roll of pressed hay and the influence of its density on quality parameters

et al. 2020

View full text Add to dashboard Cite

show abstract

“…An experimental research on "Mechanized processing of household waste" was developed in the last year in order to create a database useful for future waste management [57]- [60].…”

Section: Municipal Solid Waste (Msw) and Organic Fraction Of Msw (Ofmsw)mentioning

confidence: 99%

Circular Economy Concepts Applied to Waste Anaerobic Digestion Plants

Palermito

Magaril

Conti

et al. 2021

WIT Transactions on Ecology and the Environment

View full text Add to dashboard Cite

Anaerobic digestion contributes to the implementation of circular economy (CE) concepts. This process is assuming an increasingly important function in the treatment of the organic fraction of municipal solid waste (MSW), that is, food waste, where selective collection is optimised. The possibility of combining the recovery of matter with energy makes this approach interesting for the concepts of circular economy. Specifically, the extraction of biomethane from biogas and the following refining of the residual off-gas from impurities gives as result the extraction of CO2 that can also be used for food industry applications. A high-quality source separation of food waste gives the chance to generate a good product, compost, coherently with the aims of the circular economy principles. The use of dry processes of anaerobic digestion allows avoiding the discharge of (treated) water in the environment. Co-digestion is another option that deserves a wider adoption, because of the possibility to exploit existing volumes of digestion. This paper presents a bibliographic research based on current CE progress and MSW anaerobic digestion infrastructure in Italy and Russia. Perspectives of the sector are discussed too.

show abstract

“…Analysis of the properties of malt extracts indicates that malt extracts are healthy, natural, palatable, multi-purpose food ingredients. They are able to significantly increase the taste, biological value and pleasure of consuming a wide variety of foods in a natural way [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Scientific aspects of the study of the protein-carbohydrate raw materials biomodification process in the production of functional food products

et al. 2020

View full text Add to dashboard Cite

At present, the development of new technologies in the food industry and the creation of a wide range of qualitatively new products with a directed change in the chemical composition and properties is an important direction, which contributes to improve population's nutritional system. Particularly, at present the introduction of resource-saving, import-substituting technologies into production, which allow the rational use of secondary raw materials, preserve the country's food security and expand the range of functional food products, is important. The purpose of the research is the possibility of joint use of raw milk, raw cream, milk processing by-products, biologically active plant raw materials and the development on their basis of a technology for an enriched cheese product of the "Ricotta" type with functional properties in order to introduce import-substituting technologies, improve the structure nutrition of the population. The objects of research were raw milk, cheese whey, fermented cheese whey, milk-whey mixture, barley malt extract. The most optimal time of biomodification, the concentration of the introduced biologically active additive, the amount of proteolysis have been established. The need for biomodification by a consortium of probiotic bacteria in order to improve the nutritional value of the product.

show abstract

Technologically significant properties of municipal solid waste compost

Cited by 13 publications

References 8 publications

The study of forming a roll of pressed hay and the influence of its density on quality parameters

The study of forming a roll of pressed hay and the influence of its density on quality parameters

Circular Economy Concepts Applied to Waste Anaerobic Digestion Plants

Scientific aspects of the study of the protein-carbohydrate raw materials biomodification process in the production of functional food products

Contact Info

Product

Resources

About