адсорбція

Life and Scientific Priorities of Professor Myroslav Malovanyy

This article describes the life and scientific priorities of professor Myroslav Malovanyy. It also provides details and results of a joint research with his students of a liquid media treatment from different types of pollution. The main research and its results are illustrated, as well as environmental technologies that were developed by using the archived results.

Concurrent Sorption of Copper and Chromium Cations by Natural Zeolite

The aim of this work was to study the process of adsorption of Copper and Chromium cations by natural zeolites in static conditions. The change of the chemical composition of the surface of the zeolite as a result of sorption of heavy metals was investigated. The influence of the type of the ions and pH selectivity in absorption of heavy metals removal by zeolite was analysed. The reasons for the selective extraction of Copper from two-component solution were explained.

Сорбція іонів хрому із водних розчинів природним клиноптилолітом

The adsorption properties of Transcarpathian clinoptilolite regarding Cr (VI) ions is studied. It was found that the adsorption isotherm has s-like form and belongs to the isotherm of type II. It is established that the adsorption proceeds further after the formation of monomolecular adsorption layer. It leads to the cteation of dimolecular layer. Вивчено адсорбційні властивості закарпатського клиноптилоліту стосовно іонів  Cr (VI). З’ясовано, що ізотерма адсорбції має s-подібний вигляд і належить до ізотерми  ІІ типу.

Порівняльні дослідження перспективних методів очищення природних вод

The different methods of water purification from bacteria of the genus Bacillus are observed. The comparative characteristics of these methods is made. Розглянуто різні методи очищення води від бактерій роду Bacillus. Зроблена порівняльна характеристика цих методів. 

Дослідження процесу адсорбції ( )2 3ca no ґрунтовим середовищем

The problem of penetration of nitrogen fertilizers in the soil is analyzed. The influence of adsorption process on the rate of transfer of fertilizers in the vertical profile of the soil is determined. Experimental researches of adsorption properties of soil environment on the base of absorption of calcium nitrate by soil are done. Проаналізовано проблему проникнення азотних добрив вглиб ґрунту. Визначено вплив процесу адсорбції на швидкість перенесення добрив по вертикальному профілю ґрунту.

Кількісна та термодинамічна оцінка взаємодії йодиду гексадецилпіридинію і твіну-20 в змішаних водних розчинах і адсорбційних шарах

This article is devoted to the analysis within the framework of the theory of regular solutions interpartial interaction of hexadecylpyridinium iodide and Tween-20 in amolitude of the mixed aqueous solutions and at the interface phase solution – air. The structure is determined and values of the parameters of intermolecular interaction of surfactants and standard free energy Gibbs of mixed micellization and аdsorption layers are established.

Complex water treatment of agroindustrial complexes

The aim of this work was studying the process of phosphate adsorption on natural and synthesized adsorbents such as aluminosilicates. Sorption properties of natural zeolite concerning phosphates in static and dynamic conditions were investigated. It was found that phosphates were absorbed better in an acidic environment. Zeolites based on fly ashes of Dobrotvir heat power plant were synthesized and modified. The equilibrium values of adsorption capacity were established and the proper isotherms at a temperature 20 °C were built.

Integrated adsorption and ultrasonic technology for water treatment processes

The aim of this work is to study the process of water purification from mechanical and chemical pollution and pathogenic microflora by adsorption and ultrasonic methods. Proposed technology reduces bacterial contamination and purifies water from organic pollutants, improving its quality.

Pollution of soil environment with mineral fertilizers and ways of their migration deep into the soil

One of the major problems of pollution of soil environment, namely by components of mineral fertilizers due to their massive and continuous use in agriculture was analysed in the article. Possible ways of penetration of not absorbed mineral fertilizers deep into the soil as the main reason for getting fertilizers in the lower layers of the soil environment were investigated. A comparison of the impact of soil and climatic conditions on the rate of penetration of fertilizers deep into the soil was done.