Energy intensity decrease in chlorella growth technology by electro ozonation

Нормов, Д. А.; Samarin, Gennady; Vasilyev, Alexey N.; Shevchenkо, A. E.; Goldman, Raisa

doi:10.1088/1757-899x/791/1/012068

Cited by 2 publications

(1 citation statement)

References 10 publications

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“…In addition, single ozone doses could therapeutically use in the selected human diseases. Although, conventional ozonation technologies have some limitations such as low ozone efficiency ozone poor mass transfer from the gas phase to liquid phase and the limited organics mineralization [42 , 43] . To solve some of these problems, use of a catalyst has been suggested.…”

Section: Introductionmentioning

confidence: 99%

Hybrid UV/COP advanced oxidation process using ZnO as a catalyst immobilized on a stone surface for degradation of acid red 18 dye

et al. 2020

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Azo dyes are the largest group of synthetic organic dyes which containing the linkage C—N N—C and used in various industries such as textile industries leather articles, and some foods. Azo dyes are resistant compounds against the biodegradation processes. The purpose of this research was hybrid UV/COP advanced oxidation process using ZnO as a catalyst immobilized on a stone surface for degradation of acid red 18 (AR18) Dye. In the hybrid process using some parameters such as the dye initial concentration, pH, contact time and catalyst concentration, the process efficiency was investigated. In order to the dye removal, the sole ozonation process (SOP), catalytic ozonation process (COP) and photocatalytic process (UV/ZnO) were used. The ZnO nanoparticles were characterized by XRD, SEM and TEM analyses. The maximum dye removal was achieved 97% at the dye initial concentration 25 mg/L, catalyst concentration 3 g/L, contact time 40 min and pH 5. As a real sample, the Yazdbaf textile factory wastewater was selected. After that, the physicochemical quality was evaluated. As well as, in the optimal conditions, the AR18 dye removal efficiency was achieved 65%. The kinetic results demonstrated that the degradation reaction was fitted by pseudo -first-order kinetic. The UV/COP hybrid process had high efficiency for removal of resistant dyes from the textile wastewater. Advantages of this technique were as follows: ZnO nanoparticles were synthesized as catalyst by thermal method and were immobilized on the stones. pH changes had no significant effect on the removal efficiency. In the kinetic studies, the decomposition reaction followed pseudo -first order kinetic.

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Section: Introductionmentioning

confidence: 99%

Hybrid UV/COP advanced oxidation process using ZnO as a catalyst immobilized on a stone surface for degradation of acid red 18 dye

et al. 2020

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Research on the Effectiveness of Ozonation of Chicken Eggs

Lebedev¹,

Rozhkov²

2020

E&EvAPK

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The production of chicken eggs in the world, without slowing down, has passed for 1 trillion pieces. In conditions of saturation and oversaturation of many local markets, food eggs are transported to other remote regions or stored in warehouses, store shelves, losing their freshness and nutritional quality. The ozone can be used to disinfect the surface of chicken eggs, which suppresses microorganisms. Based on the disinfection and disinsection properties of ozone, it is proposed to treat chicken eggs with ozonated air after sorting them by opto-electronic method. (Research purpose) The research purpose is in developing a method for surface disinfection and optoelectronic sorting of food and refrigerator chicken eggs, studying the effectiveness of the performed operations in comparison with traditional methods. (Materials and methods) Authors studied the efficiency of the optoelectronic system for sorting and electrozoning chicken eggs on the basis of a laboratory installation in the Kuban State Agrarian University. The reliability of the results is confirmed by a multiply repetition of research and reproducibility of the data, the use of generally accepted methods, instruments, and mathematical processing of experimental data. (Results and discussion) The article presents an experimental study to determine the effectiveness of electrozoning of chicken eggs in comparison with traditional methods. The article describes rational parameters and modes of operation of the optoelectronic installation for monitoring chicken egg shells. (Conclusions) The article presents an analytical description of the ratio of the main parameters of an optoelectronic installation for monitoring chicken egg shells. The article presents a basic electrical diagram for studying the parameters and operating modes of the installation. The greatest efficiency of electrosonation of chicken eggs is achieved when the ozone concentration is of 1000 milligrams per cubic meter and the ozonation time is 30 minutes; up to 99 percent of harmful microorganisms and viruses on the shell are eliminated.

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Energy intensity decrease in chlorella growth technology by electro ozonation

Cited by 2 publications

References 10 publications

Hybrid UV/COP advanced oxidation process using ZnO as a catalyst immobilized on a stone surface for degradation of acid red 18 dye

Hybrid UV/COP advanced oxidation process using ZnO as a catalyst immobilized on a stone surface for degradation of acid red 18 dye

Research on the Effectiveness of Ozonation of Chicken Eggs

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