Studies of the ozonation process when drying grain

Baskakov, Ivan V.; Orobinsky, Vladimir I.; Gulevsky, Vyacheslav A.; Gievsky, Aleksey М.; Чернышов, А. В.

doi:10.1088/1755-1315/422/1/012009

Cited by 9 publications

(5 citation statements)

References 2 publications

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“…Marketable quality of such grain is also low, which reduces its competitiveness in the product market. Hence, in order to obtain high-quality grain, at the earliest stage of post-harvest processing of grain heaps it is necessary to separate stock (seed or food) and fodder grains, as well as waste [6][7][8][9][10].…”

Section: Methodsmentioning

confidence: 99%

Prospects for Improving the Technology of Post-harvest Grain and Seed Processing and Technical Means to Implement it

2021

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The paper presents the data of long-term research on the composition of harvested mass coming for post-harvest processing from grain harvesters, outlines possible ways to improve the technology of postharvest grain and seed processing. It proposes a number of engineering solutions and describes grain separators for sorting and grading all types of grain. A secondary aspiration channel with a double grain cleaning capacity and an installed pendulum valve was developed, providing high-quality cleaning of grain heaps in all types of processing and increases the sorting of biologically defective grain up to 20 %. Some solutions are proposed to reduce air and energy consumption by 20–30 % by mounting a sieve boot onto a corrugated elastic pneumatic cylinder and sequential use of air flow in a fractional separator for secondary cleaning of seeds, as well as a fundamentally new scheme of machines servicing air.

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Section: Methodsmentioning

confidence: 99%

Prospects for Improving the Technology of Post-harvest Grain and Seed Processing and Technical Means to Implement it

2021

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“…Therefore, there is currently an active search for new, environmentally friendly methods of pest control. The most promising in this respect is ozonation [1,3,5]. Ozone treatment does not require pre-production of gas, since ozone-air mixtures can be produced directly from the air, through special equipmentozonizers.…”

Section: Introductionmentioning

confidence: 99%

Ozone pest control of grain

Baskakov

Orobinsky

Gievsky

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Grain insect pests impact adversely on the agrarian industry. Insects make a significant portion of crops to become unusable. During storage, lacking proper monitoring and control, different pests tend to grow in grains. In the laboratory conditions, grain cereal heaps are most often infested by grain weevils and flour beetles. Since pests are growing very rapidly, it is necessary to immediately apply pest control actions. Ozonation can effectively destroy a large proportion of insects. However, the recommended ozone concentrations for disinfection are excessive and very hazardous for humans. Therefore, lower ozone concentrations should be applied for treatment. To this end, concentrations of ozone ranging from 1.4 to 5 mg/m3 with an exposure interval of 5 hours is found to be sufficient to completely exterminate the grain weevil. It is very difficult to maintain a constant dose of the used gas mixture, so one should focus on the concentration of ozone above 1.0 g·min/m3. To completely exterminate the flour beetle, it is necessary to ozonize under the given conditions for more than 8 hours. In this situation, the ozone concentration should surpass 1.8 g·min/m3. Ozonation is carried out until the death of 40… 50% of insects, the remaining part dies over the next day.

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“…Equipping buffer tanks for temporary storage of grain with an ozonation system, which, according to preliminary studies, will reduce the moisture content of a stack with one pass through a column grain mill to 8.3%. Currently, the percentage of moisture removed in one drying cycle does not exceed 6% [17].…”

Section: Introductionmentioning

confidence: 99%

Use of ozone in oats drying

Aboltins,

Palabinskis,

Jansons

2023

22nd International Scientific Conference Engineering for Rural Development Proceedings

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The present article describes the drying of wet oats at different temperatures with ozonated and non-ozonated air. Experimental results show that moisture removal during drying of oats at temperature T = 21 °C is higher using ozonated air than non-ozonated air. Moreover, after a 4-hour drying process, it amounts to 1.6 g per kg of oats. Using heated air, the difference in moisture removal decreases. At the beginning of the drying process, a decrease in the temperature of the drying agent can be observed in the layer, which is caused by the removal of moisture from the surface of grains. By increasing the air temperature from 21 °C to 40 °C, in the first hour of drying, 12.6 more g·kg-1 is removed than with unheated air, and in the second hour even more than 15 g·kg-1. By increasing the drying temperature from 40-60 °C, this difference is much smaller -in the first hour only 3.5 g·kg-1, in the second already more than 7.3 g·kg-1. This could be explained by the fact that as the temperature increases, the thickness of the layer in which the drying process takes place increases. By processing the obtained experimental data, a relationship was obtained that connects the drying rate and temperature with the amount of moisture removed.

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Studies of the ozonation process when drying grain

Cited by 9 publications

References 2 publications

Prospects for Improving the Technology of Post-harvest Grain and Seed Processing and Technical Means to Implement it

Prospects for Improving the Technology of Post-harvest Grain and Seed Processing and Technical Means to Implement it

Ozone pest control of grain

Use of ozone in oats drying

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