Екологізація теплових електростанцій шляхом впровадження ресурсозберігаючих заходів з переробки шламу

Запропоновано спосіб екологізації паливно-енергетичного комплексу шляхом впровадження ресурсозберігаючих технологій переробки золошлакових відходів теплових електростанційProposed the method of ecologization of the fuel and energy complex is proposed by introducing resource-saving technologies for the processing of ash-slag waste from thermal power plants

EXPERIMENTAL ASSESSMENT OF THE EFFICIENCY OF THE TRAMETIN AT EXPERIMENTAL SALMONELLOSIS OF LABORATORY AND AGRICULTURAL ANIMALS

Both clinical observation of animals and data of laboratory researches testify to the fact that veterinary medicine Trametin has high prophylactic efficacy at experimental salmonellosis in mice and in on-the-farm conditions in pigs. At the introduction of the medicine in an optimal dose while modelling dark stress we observed an increase in weight gains. The results of laboratory studies showed an increase in the protein content in blood serum, an increase in the content of phosphorus and calcium, an increase in hemoglobin and red blood cells. Phagocytic activity of piglets' blood in the group that received Trametin increased by 25 % in comparison with control values

Sorption of hydrophobic organic compounds on natural sorbents and organoclays from aqueous and non-aqueous solutions: a mini-review

Renewed focus on the sorption of hydrophobic organic chemicals (HOCs) onto mineral surfaces and soil components is required due to the increased and wider range of organic pollutants being released into the environment. This mini-review examines the possibility of the contribution and mechanism of HOC sorption onto clay mineral sorbents such as kaolinite, and soil organic matter and the possible role of both in the prevention of environmental contamination by HOCs. Literature data indicates that certain siloxane surfaces can be hydrophobic. Therefore soils can retain HOCs even at low soil organic levels and the extent will depend on the structure of the pollutant and the type and concentration of clay minerals in the sorbent. Clay minerals are wettable by nonpolar solvents and so sorption of HOCs onto them from aqueous and non-aqueous solutions is possible. This is important for two reasons: firstly, the movement and remediation of soil environments will be a function of the concentration and type of clay minerals in the soil. Secondly, low-cost sorbents such as kaolinite and expandable clays can be added to soils or contaminated environments as temporary retention barriers for HOCs. Inorganic cations sorbed onto the kaolinite have a strong influence on the rate and extent of sorption of hydrophobic organic pollutants onto kaolinite. Structural sorbate classes that can be retained by the kaolinite matrix are limited by hydrogen bonding between hydroxyl groups of the octahedral alumosilicate sheet and the tetrahedral sheet with silicon. Soil organic carbon plays a key role in the sorption of HOCs onto soils, but the extent will be strongly affected by the structure of the organic soil matter and the presence of soot. Structural characterisation of soil organic matter in a particular soil should be conducted during a particular contamination event. Contamination by mining extractants and antibiotics will require renewed focus on the use of the QSAR approaches in the context of the sorption of HOCs onto clay minerals from aqueous and non-aqueous solutions

On the Way to New Lipophilic Delokalized Onium-fluorides- Trimethyldifluorosilicates and Perfluoroalkoholates: Synthesis, Properties and Application

In this study a range of new sources of fluoride ions with lipophilic and delocalized cations having symmetrical and nonsymetrical C-N-P , C-N-S and C-N-C backbones completely substituted by dialkylamino groups were designed to improve the 'Halex' fluorination process.Reactions of bis(dialkylamino)difluoromethane with N-trimethylsilyltetramethylguanidine and tris(diethylamino)phosphazene led to (Alk2N)2CNC(NMe2)2 Me3SiF2- and (Alk2N)2CNP(NEt2)2 HF2-, respectively. Sulfur tetrachloride reacted with tetramethylguanidine to give tris(tetramethylguanido) chloride. Depending on the reaction conditions sulfur tetrafluoride and (diethylamino)sulphur trifluoride and tetramethylguanidine or N-trimethylsilyltetramethylguanidine afforded the salts with C-N-S backbone with F-, HF2-, Me3SiF2- or Me2SiF3- counter ions. The X-Ray structures of some new salts are discussed.Convenient and scalable methods of perfluoralkoholate [OCF2RF]- preparation via reaction of mono- and bisperfluoroalkylacid fluorides as well as fluorosulfonic acids with CNC-silicates, DFI, (Me2N)2CF2 and TMAF were developed

Auf dem Wege zu neuen lipophilen, delokalisierten Onium-Fluoriden, -Trimethyldifluorsilikaten und -Perfluoralkoholaten:Synthesen, Eigenschaften, Anwendungen

In this study a range of new sources of fluoride ions with lipophilic and delocalized cations having symmetrical and nonsymetrical C-N-P , C-N-S and C-N-C backbones completely substituted by dialkylamino groups were designed to improve the 'Halex' fluorination process.Reactions of bis(dialkylamino)difluoromethane with N-trimethylsilyltetramethylguanidine and tris(diethylamino)phosphazene led to (Alk2N)2CNC(NMe2)2 Me3SiF2- and (Alk2N)2CNP(NEt2)2 HF2-, respectively. Sulfur tetrachloride reacted with tetramethylguanidine to give tris(tetramethylguanido) chloride. Depending on the reaction conditions sulfur tetrafluoride and (diethylamino)sulphur trifluoride and tetramethylguanidine or N-trimethylsilyltetramethylguanidine afforded the salts with C-N-S backbone with F-, HF2-, Me3SiF2- or Me2SiF3- counter ions. The X-Ray structures of some new salts are discussed.Convenient and scalable methods of perfluoralkoholate [OCF2RF]- preparation via reaction of mono- and bisperfluoroalkylacid fluorides as well as fluorosulfonic acids with CNC-silicates, DFI, (Me2N)2CF2 and TMAF were developed