water

Physico-Chemical Studies of the Interaction Mechanism of Double and Trivalent Iron Double Oxide Nano-Particles with Serpin Protein Ovalbumin and Water

The novelty of the work is the theoretical justification and experimental confirmation of the mechanism of interaction of Fe3O4 nanoparticles with Н2О and ovalbumin-OVA, which was carried out with the help of a complex of physical and chemical studies. It was determined that the mechanism is based on the clustero-philicity of nanoparticles and hydrogen, electrostatic and van der Waals interactions.

Correlation between Diameter of Microorganisms and Efficiency of Microorganisms Destruction under Gas/Cavitation Conditions

The values of еffective rate constants of microorganisms destruction (kd) were compared, depending on the diameter of cells and gas nature bubbling under cavitation conditions. The efficiency of cell destruction under Ar/US is larger by 2–2.5 times compared to He/US, O2/US and CO2/US. Yeast cells were destroyed faster than bacteria (kd (yeast cells) >> kd (bacteria cells)) that is explained by the cells size. The cell stability under cavitational conditions is reversely proportional to the cell diameter.

Gas Nature Effect on the Destruction of Various Microorganisms Under Cavitation Action

The disinfection of water from Diplococcus, S.lutea, B.cereus, and Ps.fluorescens bacteria types and the yeast Sacch.cerevisiae via the joint action of gas/US has been investigated. The investigated microorganisms were identified in natural water and wastewater in dominant amounts. The relative ranges of effective cell destruction by combined gas/US action have been established.

RESULTS OF THE DRINKING WATER ECOLOGICAL MONITORING ON THE TERRITORY OF THE AJARA AUTONOMOUS REPUBLIC

The research represented in the given work concerns studying the organoleptic, chemical and microbiological indicators in the drinking water on the territory of the Ajara Autonomous Republic. Particularly, among the organoleptic indicators the scent, taste and color of the drinking water have been
determined; as for the chemical indicators – pH, ammonia and nitrite- and out of the heavy metals – lead, arsenic, cadmium and zinc have been determined.

MULTISPECTRAL ECOLOGICAL CONTROL OF BIOMASS OF PHYTOPLANKTON IN AQUEOUS MEDIA IN SITU USING A QUADROCOPTER

The aim of the work is to improve the method and means of multi-spectral ecological control of phytoplankton biomass in water environments in situ using a quadrocopter with a multi-spectral camera. The instrumental and methodological errors of indirect measurements of phytoplankton biomass in the near-surface layer of the aquatic environment using the developed means of environmental control have been analyzed.

MULTISPECTRAL CONTROL OF PESTICIDE CONCENTRATIONS IN AQUATIC ENVIRONMENTS USING BIOINDICATION ON PHYTOPLANKTON

The aim of the work is to improve the method and means of multispectral measurement of the content of unsuitable chemical plant protection products in aqueous media using bioindication on phytoplankton. The article analyzes the errors of indirect measurements and the reliability of the control of the concentration of pesticides using the developed means of environmental monitoring of integral parameters of pollution of water bodies

MULTI-SPECTRAL TELEVISION MEASURING CONTROL OF INTEGRAL PARAMETERS OF POLLUTION USING HIGHER AQUATIC PLANTS IN A COMPLEX FOR SEWAGE TREATMENT

The aim of the work is to improve the methods and tools of multi-spectral measurement control to improve the accuracy of monitoring the integral parameters of wastewater pollution, which is necessary to ensure their effective purification using higher aquatic plants. The complex for wastewater treatment is improved, which is supplemented with the multi-spectral monitoring system of integrated pollution parameters.

Ефективність впливу захисного покриття на експлуатаційні властивості бетону

The article is devoted to development of theoretical foundations of improving corrosion resistance of concrete protective coatings based on filled with aluminum and zinc oxides polimetylfenilseloksanu. Methods of mathematical experiment planning with regard to water absorption depending on the concrete and coating adhesion strength optimum component of the original compositions for protective coatings, determined their technological and physical and mechanical properties, the thickness of the coating, application methods and the surface of the concrete conditions of the studied.

Chemical Oxidants for Remediation of Contaminated Soil and Water. A Review

This review covers the main agents used for in situ and ex situ chemical oxidation of organic contaminants particularly oil products, in soil and water environments. Among them there are hydrogen peroxide, permanganate salts, ozone and sodium persulfate. The fields of application, as well as benefits and disadvantages of the mentioned agents use were described.

Fields of Ozone Applications

The powerful oxidative action of ozone provides basis for development of novel or improved technologies which are widely used in ecology and industry. Special attention is paid to purification of waste gases, water, and soils.  The disinfection and cleaning of drinking and process water are considered in detail. Applications of ozone in chemical, pharmaceutical and perfume industries, cosmetics, cellulose, paper and sugar industries, flotation, microelectronics, and many others are also examined in the review.