The Influence of Microbiological Processes on Subsurface Waters and Grounds in River Dam Basement

Максимович, Н. Г.; Хмурчик, В. Т.

doi:10.1007/978-3-319-09060-3_101

Cited by 5 publications

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“…This explains the significant increase in the turbidity of water seeping through the dam embankment, as compared to water from the reservoir. Laboratory studies have confirmed the presence, in dam embankment soil, of a viable microbial community capable of affecting the liquid, solid, and gas phase of the soil as life-sustaining activities become more intensive, for example, as a result of elevated levels of organic substances [9,10,12,13]. Water seeping through a dam embankment, was characterized by an elevated level of organic substances dissolved in water (the Corg content was from 108 to 122 mg/dm 3 ), while at the same time, Corg for surface water and water with low mineral content did not exceed 30 -40 mg/dm 3 , attaining 60 -70 mg/dm 3 in individual instances.…”

Section: Laboratory Study Resultsmentioning

confidence: 89%

“…This process may start spontaneously. We also note that microorganisms that populate the dam embankment may exert a significant influence on the solid, liquid, and gas components, thus significantly changing the physical and mechanical properties of the soil [6,9,10,12,13], entailing all of the ensuing negative consequences.…”

Section: Laboratory Study Resultsmentioning

confidence: 99%

“…When cores of gleyed soil are brought to the surface, ocher spots of trivalent iron hydroxide start to gradually appear on the core. Gas geochemical tests of subsurface gas within the earth dam embankment reveals pockets of elevated carbon dioxide, methane, and volatile organic compounds [6,9,10].…”

Section: Field Study Resultsmentioning

confidence: 99%

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The Role of Microorganisms in Elevating the Turbidity of Dam Seepage Water

2016

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Translated from Gidrotekhnicheskoe Stroitel 'stvo, No. 11, November 2015, pp. 55 -58. Studies at one of the earthen dams of the Volga -Kama cascade of dams revealed an elevated removal of suspended particles in seepage water, resembling the process of mechanical erosion. Comprehensive studies show that active microbiological processes occur in dam bodies. Elevated turbidity of seepage water was caused by microbiological processes. Microorganisms are also capable of adversely affecting the physical and mechanical properties of soil and promote the risk of reducing the stability of hydraulic engineering installations. In this regard, there is a need to develop a method to study the extent of microbiological process hazard and to incorporate it into regulatory documents.

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Section: Laboratory Study Resultsmentioning

confidence: 89%

Section: Laboratory Study Resultsmentioning

confidence: 99%

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The Role of Microorganisms in Elevating the Turbidity of Dam Seepage Water

2016

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“…The biological destroying minerals containing them proceeds at a rate of up to several mass percent per month on limestone and clay interfaces (Glazovskaya and Dobrovolskaya 1984). The destruction of cement is activated under hydrophilic organic matter, ammonia, the intensive processes of ammoni cation and nitri cation in combination with the release of СО 2 and other gases (Maksimovich and Hmurchik 2015).…”

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confidence: 99%

Biogeochemical interface development in a model carbonate-clayey soil

Sofinskaya

Mannapova

Usmanov

et al. 2023

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The present paper is aimed at studying hydrophilic and hydrophobic interactions via the modeling behavior of carbonate-clayey soil in a laboratory experiment. The typical aspects of human impact on the biogeochemical processes of natural soils such as decompression, disintegration, hydration and introducing easily oxidized organic matter were simulated. The experimental settings were adjusted regarding common field conditions for the clay near-surface layers in the temperate zone. The model system consisted of a carbonate-clayey soil, filtering water, and a psychrophilic microbial community desorbed from cave calcite formations (speleothems). The carbonate-clayey soil was collected from eluvium on red clay bedrock deposits of the Permian system along the right bank of the Volga River in the Republic of Tatarstan. The microbial community was stimulated with a modified R2A growth medium and inoculated into the clay using ceramic carrier discs. In order to explain the results of the experiment auxiliary materials presented simplified systems of the carbonate clay components were used. Soil properties such as the size distribution of mechanically strong particles and microaggregates, mineral composition, organic matter content, water wettability, and the chemical composition of filtered water were determined. The experiment being carried out during six months showed the appearance of new hydrophobic contacts between soil particles, crystalline cement deposition and the high sensitivity of these processes to microbial activity. The results of the study may help in understanding the processes that occur when foundations for constructions or underground facilities contact microbially produced substances, as well as predicting soil weathering.

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“…The composition of active bio lms in subsurface layers is very wide -the most common communities consist of bacteria and micromycetes, many of which are able to release watersoluble carboxylic acids dissolving silica, aluminum, iron, manganese, sodium, potassium, calcium, magnesium and destroying minerals containing them at a rate of up to several mass percent per month, when contact with limestone and clay (Glazovskaya and Dobrovolskaya 1984). The destruction of mineral components is activated under fresh (hydrophilic) organic matter, ammonia, the intensive processes of ammoni cation and nitri cation in combination with the release of СО 2 and other gases (Maksimovich and Hmurchik 2015).…”

mentioning

confidence: 99%

Biogeochemical interface development in a carbonate-clayey soil

Sofinskaya

Mannapova

Usmanov

et al. 2022

Preprint

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The typical situation of technogenic influence on biogeochemical processes of previously unaffected soils of the terrigenous carbonate complex was simulated experimentally. The dynamics of some physical, chemical and physico-chemical properties of the model system consisting of: a carbonate clay soil, filtering water, and a psychrophilic heterotrophic microbial community washed away from calcite speleothems, was investigated. The carbonate clay soil was sampled from eluvium on red clay bedrock deposits of the Permian system. The rock to extract the psychrophilic microbial community was selected from the aphotic zone of the Yuryevskaya cave, Republic of Tatarstan. The microbial community was stimulated by the modified R2A nutrient medium. We used standard methods to determine the soil and filtrate physical and chemical properties, as well as the captive bubble method in the author's modification for wetting contact angle of soils. The experiment showed that the model technogenic impact on the carbonate clay soils modified their properties. The microbial activity during 6 months caused a redistribution of microaggregates in size, increased the fraction of crystalline contacts between soil particles, immobilized some inorganic ions, and increased soil heterogeneity and hydrophobicity. The results of the study can be considered when designing the foundations for constructions contacted with organic substances, weathering soil behavior predicting, as well as when planning caves’ restoration and preservation.

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The Influence of Microbiological Processes on Subsurface Waters and Grounds in River Dam Basement

Cited by 5 publications

References 0 publications

The Role of Microorganisms in Elevating the Turbidity of Dam Seepage Water

The Role of Microorganisms in Elevating the Turbidity of Dam Seepage Water

Biogeochemical interface development in a model carbonate-clayey soil

Biogeochemical interface development in a carbonate-clayey soil

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