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Документ Environmental and security aspects wastewater treatment stations of food industry in Ukraine(2022) Semenova, Olena; Suleyko, Tetiana; Siryk, Alina; Evtushenko, OlgaThe aim of this article was to determine the optimal parameters of wastewater treatment and to eliminate the certain deficiencies of aerobic fermentation. It was established that continuous fermentation mode of wastewater flows is the most effective to get the additional source of energy - biogas. Investigated ways of intensification of the aerobic fermentation stage can increase the productivity of an aeration tank in the wastewater treatment, reducing respectively the environmental load in the region where a food industry enterprise is situated. Метою даної статті було визначення оптимальних параметрів очищення стічних вод та усунення певних недоліків аеробного бродіння. Встановлено, що безперервний режим бродіння потоків стічних вод є найбільш ефективним для отримання додаткового джерела енергії – біогазу. Досліджені шляхи інтенсифікації стадії аеробного бродіння дозволяють підвищити продуктивність аеротенка при очищенні стічних вод, відповідно знижуючи навантаження на навколишнє середовище в регіоні, де знаходиться підприємство харчової промисловості.Документ The intensification of dehydration process of pectin-containing raw materials(2022) Palamarchuk, Igor; Zozulyak, Oksana; Mushtruk, Mikhailo; Petrychenko, Ievgenii; Slobodyanyuk, Nataliia; Domin, Оlexander; Udodov, Sergiy; Semenova, Olena; Karpovych, Inna; Blishch, RoksolanaThe process of intensifying dehydration of pectin-containing raw materials by using centrifugation with simultaneous application of low-frequency oscillations to the working container creates an electroosmotic effect in unilateral diffusion to improve the filtration process. It is established that to reduce the technological resistance in the presented methods; it is necessary to create a fluidized bed of products due to the oscillating motion of the working capacity. An experimental vibration unit has been developed to determine the rational parameters of the vibrocentric moisture removal process using the electroosmotic effect. It is proved that the complex of the designed equipment provides consecutive carrying out of three-stage vibration filtration-convective drying of high-moisture production by an alternation of action of a stream of the heat carrier, an electromagnetic field, low-frequency fluctuations. According to the research results, the dependences of the kinetics of the moisture diffusion process on the electric field strength are obtained; frequency of electric current and duty cycle of pulses, which allowed to optimize the process parameters according to the criteria of minimizing energy consumption. It was found that the processing time to achieve the desired humidity with the application of vibration, filtration, and electroosmotic effect was twice less than for filtration drying in a fixed bed. In combination with the noted physical and mechanical factors, the proposed technology improves the technical and economic parameters of the studied process.Документ Wastewater treatment from nitrogen compounds(2020) Semenova, Olena; Bublienko, Natalia; Suleyko, Tetiana; Reshetnyak, LyudmilaIncreasing the concentration of nitrogen compounds in wastewater has led to a deterioration of surface water quality, which is the main source of economic drinking water supply for the vast majority of Ukrainians. The Government of reservoirs in the territory of Ukraine recorded an excess of norms for ammonia nitrogen – 2 – 15 times, nitrates – 7 – 20 times. The consequences of contamination with nitrogen compounds are eutrophication, which is caused by hypertrophied development of algae («flowering»); reducing oxygen content. We have proposed biological sewage treatment with this type of contamination.Документ Cleaning of sewageswith use of pinotenk(2016) Semenova, Olena; Bublienko, Natalia; Shylofost, Tatiana; Semenova, Alexandra; Reshetnyak, LyudmilaCharacterized sewage containing hydrocarbons. It is shown that their purification is a complex biological process. This is due to the peculiarities of dissolving contaminated components in water. The use of the biosorption process for wastewater treatment with such contaminations is proposed. The principle of work of a pinotek, its advantages, features of use is given. The indicators of wastewater pollution before and after cleaning are shown.Документ Stabilization of active sludge after wastewater treatment contaminated by petroleum products(2016) Semenova, Olena; Reshetnyak, Lyudmila; Bublienko, Natalia; Smirnova, Elizabeth; Shylofost, TatianaBiochemical purification of wastewater containing refined petroleum products takes place due to the oxidation of pollutants by active sludge organisms. As a result of this process the intense consumption of pollutants by active sludge and its growth occurs. Therefore, the possibility to use active sludge containing refined petroleum products after wastewater treatment requires its stabilization. Methods:I n this work the oxidation by a 30% hydrogenperoxide solution was studied for its use as a stabilizer. Chemical oxidizers, including hydrogen peroxide destroy organic polymers retaining free water thus promoting water release from the structure of sludge particles. On the other hand remains of fine structured oxidized biopolymers can lead to filter clogging, that is, reduce moisture exchange of sludge. Results: The experiment was carried out to find out the correlation between the doses of hydrogen peroxide andthe resistivity value of sludge filtration. Discussion: Stabilized active sludge can be used as a fuel for boiler rooms, which in its turn will reduce natural gas consumption for the enterprise needs.Документ Improved flowsheet of wastewater treatment from nitrogen a containing compounds(2015) Semenova, Olena; Reshetnyak, Lyudmila; Bublienko, Natalia; Salavor, Oksana; Smirnova, ElizabethWaste water containing nitrogen compounds stimulate the growth of plankton, algae and violate the oxygen regime, affecting the livelihoods of aquatic organisms. Wastewater treatment of nitrogen carried activated sludge in suspended state or immobilized using active biomass.Документ Improved flow sheet of dairies wastewater treatment at milk processing factories(2014) Semenova, Olena; Bublienko, Natalia; Smirnova, Elizabeth; Dyka, OksanaУ статті обґрунтовано доцільність використання удосконаленої технологічної схеми очищення стічних вод молокозаводів. Доведено, що включення у схему флотатора сприяє видаленню нерозчинених органічних речовин, кількість яких у стічних водах зросла у зв'язку із збільшенням випуску кисломолочної продукції на молокозаводах, а використання зануреного дискового біофільтра як основної споруди біологічного очищення сприяє інтенсивнішій деструкції органічних забруднень тому, що він має ознаки традиційного біофільтра й аеротенка. In the article the feasibility of using advanced technological scheme of sewage treatment, milk. It is proved that the inclusion in the scheme helps to remove undissolved Flotators organic matter guestrooms at wastewater increased due to the increased release of dairy products in dairies, and the use of submerged biofilter disk as the basic structure of biological treatment promotes more intensive degradation of organic contaminants that he has elements of traditional biofilter and aeration tanks.Документ Use of higher concentration of active sludge organisms for intensifying dairies’ wastewater treatment process(2013) Bublienko, Natalia; Semenova, Olena; Smirnova, Elizabeth; Suleyko, Tetiana; Reshetnyak, LyudmilaПроаналізована екологічний стан підприємств харчової промисловості, зокрема молокопереробної галузі. Підтверджено ефективність застосування комплексної анаеробно-аеробної технології. Запропоновано спосіб інтенсифікації стадії аеробної ферментації застосуванням підвищеної концентрації активного мулу. Це дасть змогу значно прискорити процес очищення і зменшити тривалість процесу. Analyzed the ecological state of the food industry, particularly the dairy industry. Confirmed the effectiveness of the integrated anaerobic - aerobic technology. The method of intensification stage aerobic fermentation using a high concentration of activated sludge. This will significantly speed up the cleaning process and reduce the duration of the process.Документ Method of mathematical planning of experiment for optimal flowsheet selection of biochemical oil wasterwater treatment(2013) Semenova, Olena; Smirnova, Elizabeth; Bublienko, Natalia; Shylofost, Tatiana; Bublienko, AlexandrTo cleanse oily wastewater by us was used combined scheme, which includes removal of contaminants in foam layers for gas-liquid countercurrent oxidation and activated sludge pollution in the full oxidation. Done mathematical experiment planning to select the optimal scheme biochemical purification. Experimental research of biochemical treatment of oily wastewaterДокумент Intensification of biochemical purification of oil wastewater process by acting on biocenosis activity(2012) Semenova, Olena; Bublienko, Natalia; Smirnova, Elizabeth; Shylofost, Tatiana; Pastushenko, A.Questions intensification of biochemical sewage treatment using yeast autolysate. Studied the stimulatory effect of yeast autolysate on the kinetics of the purification process and the quality of sludge from the viewpoint of its utilization. Розглянуто питання інтенсифікації біохімічного очищення стічних вод за допомогою дріжджового автолізату. Вивчено стимулюючий вплив дріжджового автолізату на кінетику процесу очищення і на якість активного мулу з точки зору можливості його утилізації.