Kazan Federal University Digital Repository

Contact angle hysteresis in the clay-water-air system of soils

Show simple item record

dc.contributor Казанский федеральный университет
dc.contributor.author Sofinskaya Oxana Aleksandrovna
dc.contributor.author Galeev Akhmet Askhatovich
dc.contributor.author Korolev Eduard Anatolevich
dc.date.accessioned 2020-12-28T10:47:33Z
dc.date.available 2020-12-28T10:47:33Z
dc.date.issued 2020
dc.identifier.citation Sofinskaya, O.A. Contact angle hysteresis in the clay-water-air system of soils / O. A. Sofinskaya, A. A. Galeev, E. A. Korolev // Processes and Phenomena on the Boundary Between Biogenic and Abiogenic Nature. Collection of papers presented at VI International Symposium. - 2020. - P. 179-194.
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/160366
dc.description.abstract The purpose of this research is to study the change in wettability of clays due to the influence of mesophilic soil microorganisms' activity when adding model contaminants: water-in-oil emulsion, glycerol and oleic acid. During the experiments, the objectives of this study were to specify peculiarities of wetting contact angle hysteresis of clays with substrates of different mineral composition and microbial activity. Hydrophilicity/hydrophobicity of the stimulator for microbial activity does not have a clear effect on clay properties. The surface heterogeneity mostly increases with time, perhaps, due to biofilm exudates whatever was a type of microbial stimulator. Chemical and geometric heterogeneities played comparable roles in the surface hydrophilic-hydrophobic balance. Results obtained prove that microbial communities and/or the Fe chemical state alteration (pyrite, hematite or goethite) were responsible for both hydrophilization and hydrophobization of the surface. The equation for the drop spreading rate was presented and verified by well comparison of experimental results with simulations.
dc.language.iso en
dc.relation.ispartofseries Lecture Notes in Earth System Sciences
dc.rights открытый доступ
dc.subject Biomat
dc.subject Biofilms
dc.subject Hydrophobicity
dc.subject Hydrophilicity
dc.subject Clay minerals
dc.subject Surface tension
dc.subject Contact angle
dc.subject Hysteresis of wettability
dc.subject Water spreading
dc.subject Water repellency
dc.subject.other Геология
dc.subject.other Общие и комплексные проблемы естественных и точных наук
dc.title Contact angle hysteresis in the clay-water-air system of soils
dc.type Article
dc.contributor.org Институт геологии и нефтегазовых технологий
dc.description.pages 179-194
dc.pub-id 244964
dc.identifier.doi 10.1007/978-3-030-21614-6_10


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search DSpace


Advanced Search

Browse

My Account

Statistics