School for Young Scientists
Ru
Search
Research
Science Areas
Projects
Research Facilities
Publications
Peer-reviewed international papers
Books
Int. Conference Proceedings
Training Offer
PhD Courses
Young Scientist School
Staff
News
Research News
Scientific Events
Public Events
About WPI
History
Structure
Management
Staff
Academic Council
Early Career Scientists’ Council
Contacts
MainPublicationsPeer-reviewed international papersV.A. Vavilin, L.Y. Lokshina. Carbon and hydrogen dynamic isotope equations are used to describe the ...
Peer-reviewed international papers Books Int. Conference Proceedings

V.A. Vavilin, L.Y. Lokshina. Carbon and hydrogen dynamic isotope equations are used to describe the dominant processes of waste biodegradation: Effect of aeration in methanogenic phase of the landfill // Waste Management. 2023. Vol. 166

https://doi.org/10.1016/j.wasman.2023.04.027

Abstract. The sequence of microbiological processes occurring during the decomposition of fresh and old organic wastes from landfills is analyzed using the developed dynamic models, which are verified on the basis of experimental data previously obtained in anaerobic and aerobic laboratory reactors. The models are based on the material balances of the heavy and light isotopes of carbon and hydrogen during the biodegradation of cellulosic waste as a relatively poorly degradable substrate. According to the models, under anaerobic conditions, dissolved carbon dioxide is a substrate for hydrogenotrophic methanogenesis, which leads to an increase in the isotope signature of carbon in carbon dioxide and its subsequent stabilization. After the introduction of aeration, methane production ceases, and from that time on, carbon dioxide remains only a product of cellulose and acetate oxidation, which causes a significant decrease in the isotopic signature of carbon in carbon dioxide. The dynamics of the deuterium content in the leachate water is described as a consequence of the rate of its entry into and exit from the two (upper and lower) compartments of the vertical reactors, as well as the rates of its consumption and formation during microbiological reactions. According to the models, in the anaerobic case, the water is first enriched with deuterium due to acidogenesis and syntrophic acetate oxidation and then diluted with deuterium-depleted water, which is continuously fed to the top of the reactors. In the aerobic case, a similar dynamic is simulated.

Date of publication:
22.05.2023
Author:
Vavilin Vasily Alexandrovich, Lokshina Lyudmila Yakovlevna

Оther publications
All publications
24.05.2023
Korshenko E., Panasenkova I., Osadchiev A., Belyakova P., Fomin V. Synoptic and Seasonal Variability of Small River Plumes in the Northeastern Part of the Black Sea // Water. 2023, Vol. 15. Iss.: 4, No: 721
24.05.2023
Grigorev V.Yu., Kharlamov M.A., Semenova N.K., Sazonov A.A., Chalov S.R. Impact of precipitation and evaporation change on flood runoff over Lake Baikal catchment // Environmental Earth Sciences. 2023. Vol. 82. Iss.: 1, Article number: 16
24.05.2023
Kalugin A., Morozova P. Hydrometeorological Conditions of the Volga Flow Generation into the Caspian Sea during the Last Glacial Maximum // Climate. 2023, Vol.:11. Iss.:2, No: 36
24.05.2023
Bugaets A., Gartsman B., Gubareva T., Lupakov S., Kalugin A., Shamov V., Gonchukov L. Comparing the Runoff Decompositions of Small Experimental Catchments: End-Member Mixing Analysis (EMMA) vs. Hydrological Modelling // Water. 2023, Vol.15. Iss.:4, No:752
22.05.2023
V.A. Vavilin, L.Y. Lokshina. Carbon and hydrogen dynamic isotope equations are used to describe the dominant processes of waste biodegradation: Effect of aeration in methanogenic phase of the landfill // Waste Management. 2023. Vol. 166
13.04.2023
A. Buber, M. Bolgov, V. Buber. Statistical and Water Management Assessment of the Impact of Climate Change in the Reservoir Basin of the Volga–Kama Cascade on the Environmental Safety of the Lower Volga Ecosystem// Appl. Sci. 2023, Volume 13, Issue 8,4768
Research
Publications
Training Offer
Staff
News
About WPI
info@iwp.ru
+7 (499) 135-54-56 Management
+7 (499) 783-37-56 Ext.222 HR Department
+7 (499) 135-54-15 Fax
ul. Gubkina 3, Moscow, 119333, RUSSIA
Driving directions
Old version of the site
© 2015-2023 WATER PROBLEMS INSTITUTE
Development by