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Постійне посилання колекціїhttps://dspace.nuft.edu.ua/handle/123456789/7522
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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 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 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.