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Wyszukujesz frazę "Issayeva, A. U." wg kryterium: Autor


Wyświetlanie 1-3 z 3
Tytuł:
Buffer Effects in Submersed Denitrifying Biofilter
Autorzy:
Gevod, V. S.
Chernova, A. S.
Zhumadulayeva, A. I.
Dossybayeva, G. N.
Syzdykova, M.
Shymelkova, R. Zh.
Issayeva, A. U.
Powiązania:
https://bibliotekanauki.pl/articles/2086392.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
biofiltration
denitrification
microflora activity
self-regulation
system stability
Opis:
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%.
Źródło:
Journal of Ecological Engineering; 2022, 23, 4; 145--154
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative Assessment of Geomorphological and Landscape Features Around the Small Aral Sea
Autorzy:
Issayeva, Akmaral U.
Yeshibayev, Arystanbek A.
Leska, Boguslawa M.
Messyasz, Beata
Abubakirova, Azhar A.
Tleukeyeva, Assel Ye.
Powiązania:
https://bibliotekanauki.pl/articles/2027951.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
ecology
Aral Sea
salinity
flora
landscape
Opis:
The ecological state of the Aral Sea remains an important issue affecting the overall state of the ecosystem in the region. Despite the fact that the state of the northern part of the sea or the Small Aral Sea can be described as stable, the southern part of the former sea continues to degrade. The area of degraded ecosystems around the Small Aral Sea is significant, and huge salt reserves remain the cause of further degradation of terrestrial ecosystems in the Aral Sea region. This study includes the results of geobotanical investigations researches of the dried bottom around the Small Aral Sea area. Five types of landscape-geomorphological formations of the dried-up sea were identified during the research. The creation of the formations took place during different periods of drying and depended on the element’s of sea relief. The vegetation of these landscapes is represented exclusively by salt-tolerant species of xerophytic flora. In this case, the number of plant species in the plant communities of these landscapes is directly proportional to the concentration of salt in the soil.
Źródło:
Journal of Ecological Engineering; 2021, 22, 10; 73-84
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Use of Phytomeliorant Plants for Waste Water Purification
Autorzy:
Issayeva, Akmaral U.
Yeshibayev, Arystanbek A.
Tleukeyeva, Assel Ye.
Issayev, Yerzhan B.
Powiązania:
https://bibliotekanauki.pl/articles/1955577.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
phytomeliorant plant
wastewater
purification
toxic ingredient
phytoremediation
Opis:
The use of phytomeliorant plants is one of the promising trends in environmental biotechnology to purify waste water. The study was carried out to understand the phytomeliorative qualities of plants of the indigenous flora of the Turkestan Region under controlled conditions and to develop a method for treating wastewater. It was established that the use of a three-stage treatment of municipal wastewater using phytomeliorant plants: Ceratophуllum demersum L., Potamogeton trichoides Cha. Et Schlecht., Potamogeton pectinatus L., Potamogeton natans L.; Cardamine densiflora N. Gontsch., Sium sizaroideum DC.; Veronica beccabunga L, Veronica anagallis aquatica L. and Azolla caroliniana Willd for 30 days of the controlled experiment reduces the content of organic and mineral ingredients to the MPC values. A method for phyto-meliorative wastewater treatment of one of the sanatoriums in the south of Kazakhstan was developed and carried out in multi-stage bioponds, where water was purified from mineral and organic compounds by 94.9 ± 8.3 – 98.9 ± 7.8% in 12 days. In this study, first of all, nitrogenous compounds were utilized, then there was an active absorption of mineral ions and residual organic matter by plants. In conclusion, significant purification of wastewater was achieved by using indigenous phytomeliorant plants in much shorter time period.
Źródło:
Journal of Ecological Engineering; 2021, 22, 9; 48-57
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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