In this paper, the relationship between the parameters of the porous structure and the moisture retention capacity of soils modified with a surfactant (sulfonyl) and polymer additive C9 was investigated. Water vapour sorption isotherms were obtained by excitatory method, and the parameters of the porous structure were calculated according to BAT theory. The infrared spectroscopy method was used to analyze changes in the chemical nature of soil surfaces after modification. It is shown that the introduction of organic additives leads to a significant increase in water vapour sorption compared with the original soil sample. Modification by sulfonyl mainly contributes to increase the number of hydrophilic centers of the surface and development of microporosity, which is manifested in the growth of the monolayer capacity of sorption and strengthening the absorption bands of O-H groups in IR spectra. At the same time, polymer additive K9 has a major influence on the structural organization of the pore space, contributing to the development of mesoporosity and increasing moisture retention in soils at medium and high relative pressures. Comprehensive analysis of infrared spectroscopy data, MET parameters and sorption isotherm confirms that the improvement in soil moisture retention under the action of surfactants and polymers is complex structurally-chemical. The results obtained are of practical relevance for regulating the water regime of soils and developing effective soil conditioners for arid regions.
| Mualliflar | Shamuratova, Moxinabonu |
|---|---|
| Jurnal | Наманган муҳандисликтехнология институти илмийтехника журнали |
| Nashr sanasi | 2026-03-30 |
| Jild | 11 |
| Son | 1 |
| Betlar | 180-185 |
| Til | Ingliz |
| DOI | 10.61151/stjniet.v11i1.997 |
DOI: 10.61151/stjniet.v11i1.997 · Maqolaning asl sahifasi
soil, sorption of water vapours, porous structure, PET method, infrared spectroscopy, surfactants, polymer additives, moisture retention
The effect of the quantity and concentration of calcium nitrate solutions on the qualitative parameters of fertilizer precipitates obtained on the basis of mineralized mass (MM) was studied. For laboratory…
In this study, waste of hydrogenation catalysts of the “Pricat 9920” grade, used in the conversion of liquid vegetable oils into semi-solid products at IDEAL OIL JSC located in the Namangan region of the Republic of…
This work examines the acid decomposition of washed calcined phosphoconcentrate using a mixed secondary sulfuric and extraction phosphoric acid feed (H₂SO₄:H₃PO₄ = 1:0.75) across a dosage range of 50–110 units. Products…
This study investigates the adsorption properties of modified adsorbents based on bentonite and gossypol resin for the removal of methylene blue (MB) from wastewater. The effects of temperature and concentration on the…
This study investigates the production of magnesium chloride from magnesium-containing brines by the isothermal method at 25 °C within the quaternary system 2Na⁺, Mg²⁺ // SO₄²⁻, 2Cl⁻ – H₂O. Natural brines of the Alat…
This study explores Angren kaolin as a low-cost local raw material for the synthesis of KA zeolite (LTA-type). A multi-step activation process using oxalic acid was applied to remove impurities and enhance reactivity…
Currently, the high cost of metal, as well as the harsh and often extreme operating conditions faced by oil and gas equipment in a sharply continental climate, significantly exacerbate the challenge of improving its…
This article compares the efficiency of the traditional thermal evaporation method and the modern reverse osmosis (RO) process in the production of tomato paste. The study examines the advantages of reverse osmosis…
In this study, Na-A type zeolite with high crystallinity was synthesized hydrothermally from NaAlO₂ and Na₂SiO₃ precursors. The obtained Na-A zeolite was converted into Li-A zeolite through stepwise ion exchange using…
This article studies the issues of determining the quality and safety indicators of semi-finished products based on minced meat. During the study, the composition and quality parameters of the products were evaluated…
Наманган муҳандисликтехнология институти илмийтехника журнали — barcha maqolalar