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Information × Registration Number 0211U001306, 0110U005574 , R & D reports Title Development of the sorbent based on natural zeolite (clinoptilolite) with chemosorptionally applied nanoclusters of manganese dioxide, and the technology of its application for the cleaning of artesian water from Mn(II) and Fe(II) ions popup.stage_title Head Tarasevich Yuri Ivanovych, Registration Date 27-01-2011 Organization A.V Dumansky Institute of Colloid Chemistry and Water Chemistry popup.description2 Goal of research - the development in laboratory conditions of the method for the modification of natural silicate clinoptilolite by manganese dioxide. The development comprises the selection of filtering material, the method of application of manganese dioxide onto its grains, and the determination of optimal modification conditions. Research objects - natural clinoptilolite tuff, modified filtering material. Methods of research - ion exchange, photoelectrocolorimetry, filtering, analytical chemistry, calorimetry, molecular statistics. Equipment - X-ray device DRON-2.0; derivatograph Q 1000, KFK 2, Ph-meter, microcalorimeter Calve MS-70, flame spectrophotometer AAA-1. Theoretical and practical results - the selection of clinoptilolite tuffs as the initial material for the preparation of the grain loading modified by manganese dioxide and aimed at the demanganation of artesian waters is justified. For the detailed characterisation of initial clinoptilolite sample in the Mn-form the adsorption calorimetric study of interaction of water with the active centres at the surface of this material is performed. For the quantitative estimation of the number and energetic characteristics of the Mn-clinoptilolite hydration centres the generalised Langmuir equation which describe the adsorption on the surface which contains several types of adsorption centres is proposed and applied. The efficient method for the application of the manganese dioxide film onto the natural clinoptilolite filtering load grains is proposed. In the laboratory conditions the optimal parameters of the clinoptilolite modification are adjusted. Novelty - the method does not require thermal processing, and relies on the ion exchange and sorption properties of clinoptilolite. Efficiency of implementation - method is capable for efficient extraction of manganese and iron ions from the artesian well water. Field of use - water conditioning and environment protection. Product Description popup.authors Іванова Зінаїда Григорівна Аксененко Євген Володимирович Гончарук Владислав Володимирович Квасниця Олена Олександрівна Кравченко Тамара Борисівна Крисенко Дмитро Анатолійович Кулішенко Олексій Юхимович Остапенко Володимир Трохимович Поляков Валерій Омелянович Трифонова Марина Юріївна popup.nrat_date 2020-04-02 Close