Buffer Effects in Submersed Denitrifying Biofilter
Gevod V.S. Chernova A.S. Zhumadulayeva A.I. Dossybayeva G.N. Syzdykova M. Shymelkova R.Z. Issayeva A.U.
2022Polskie Towarzystwo Inzynierii Ekologicznej (PTIE)
Journal of Ecological Engineering
2022#23Issue 4145 - 154 pp.
The high content of nitrates in drinking water leads to serious diseases. The creation of biofiltering devices with the longest time of their operation between preventive flushes is extremely important. The purpose of this study was to investigate the features of the functioning of the developed U-shaped submersible denitrifying biofilter during its long-term operation in the piston filtration mode. The denitrification of water by using the method of displacement (piston) biofiltration in a submersible small U-shaped biofilter with immovable carriers of attached microflora in its filter load was studied. As a result, clogging of the pore space of the biofilter in the zone of excess bacterial nutrition is prevented and the vital activity of bacteria is maintained in places where there is no nutrient substrate. It has been shown that, due to adaptive mechanisms, denitrifying bacteria convert nitrate ions into gaseous nitrogen, consuming extracellular polymeric substances. The rate constants of the reaction of reduction of nitrates to molecular nitrogen in different zones of the biofilter under different filtration modes were determined. The activity of the microflora inside the biofilter quickly returns to its original level when a full-fledged external nutrition is resumed. The efficiency of nitrate to nitrogen conversion in the studied biofilter is 94.2±8.9%.
Biofiltration , denitrification , microflora activity , self-regulation , systemstability
Text of the article Перейти на текст статьи
Ukrainian State University of Chemical Technology, Haharina Ave 8, Dnieper, Dnipropetrovsk Oblast, 49000, Ukraine
Research Institute of Ecology and Biology, Shymkent University, Tauke Khan Ave 5, Shymkent, 160012, Kazakhstan
South Kazakhstan Medical Academy, Al-Farabi Square 1, Shymkent, 160001, Kazakhstan
M. Auezov State University, Tauke Khan Ave 5, Shymkent, 160012, Kazakhstan
Ukrainian State University of Chemical Technology
Research Institute of Ecology and Biology
South Kazakhstan Medical Academy
M. Auezov State University
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026