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Information × Registration Number 0215U003588, 0114U000761 , R & D reports Title Development of organo-mineral materials based on the precipitation water stations with the purpose to their application in water treatment as sorbents and in agriculture to improve soil productivity popup.stage_title Head Tarasevich Yuri Ivanovych, Registration Date 25-02-2015 Organization A.V Dumansky Institute of Colloid Chemistry and Water Chemistry popup.description2 Goal of research - to develop organic-mineral materials from precipitation water stations for use in water treatment as sorbents and in agriculture as fertilizer. Research objects - adsorbents: natural and modified layer silicates, reagents - cationic surfactants and cationic polyelectrolytes adsorbates - water, anionic dyes, humic acid. Methods of research - high performance liquid chromatography; atomic absorption spectrophotometry; low-temperature adsorption/desorption; quantum chemistry; molecular statistics; adsorption; extraction photometry; sorption photometry; calorimetry. Equipment - liquid chromatograph HP 1050 (DAD), atomic absorption spectrophotometer 3 115 M 1, vacuum adsorption device, microcalorimeter Calve, personal computer. Theoretical and practical results - by quantum-chemical ab initio method calculated the number of hydration and the enthalpy of hydration of organic modifier cations (alkylpyridinium and hexamethyleneguanidinium) and their complexes with layered silicates. Calculated energy effects of cation exchange reaction between the solution and the active centers of the surface silicates. By laboratory experiments simulating seal of precipitation water stations under the influence of fluid hydrophobiser potassium methylsiliconate solution of aluminum sulfate and polyhexamethyleneguanidine the optimal dose of reagents that achieve the greatest effect sealing precipitation (13-23%). Novelty - a new method for precipitate treatment waterworks, allows to speed up the process of precipitates formation and reduce their moisture. Efficiency of implementation - the method allows for the precipitation by reducing the moisture to reduce the amount of water used for the station's own needs, and to reduce the need for additional desilting installations space. Field of use - environment protection. Product Description popup.authors Іванова Зінаїда Григорівна Аксененко Євген Володимирович Остапенко Роман Володимирович Трифонова Марина Юріївна popup.nrat_date 2020-04-02 Close