Introduction. The purpose of this publication is to search for alternative materials -food industry wastes; valuation of it's use in the production of porous carbon materials (PCM) for use in water treatment systems.Materials and methods. Pyrolyzed wood waste (PWW) of the meat processing industry as raw material for the production of sorbents. Chemical activation of PWW by orthophosphoric acid. Using the adsorption-desorption methods of nitrogen, the porous structure was determined at 77 K; mesopore distribution by size and mesopore's volume -by BJH-method; distribution of micropores by size -using QSDFT-method; volume of micropores -by Dubinin-Radushkevich method; subnanopor's volume -by QSDFT-method.Results and discussion. The microporous structure has the following characteristics: pore diameters are in the range of D mi =0,60-2,5 nm, mostly represented by pores with a diameter of 0,87; 1,56 nm; volume of micropores -V mi =0,091 cm Conclusion. An energy-saving method is proposed for the production of PCM from secondary «renewable» resources -PWW, for use in water treatment systems.
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Introduction. The aim of the publication is to study the mechanism of the establishment of relaxation of water-alcohol mixtures (WAM) in the main stages of creating vodka in the application of electrochemical activation (ECA) at the stage of Na-cationization process water softening. Materials and methods. 1 H NMR analysis was performed using: FT-NMR Bruker Avance II spectrometer (400 MHz); special capillary with acEtOHe-d6; high accuracy ampoules № 507-HP; dispenser; ethyl alcohol rectified (EAR); water softened by Na-cationization; WAM from EAR and softened water. Results and discussion. In this work, the equilibrium state of vodkas in the creation of WAM in the process of ECA of softened water by Nacationization is investigated. It has been established that electrochemical reactions lead to a change in the system of intermolecular interactions. Charging states of molecules in anolyte and catholyte lead to differences in the electron distribution, which affects the chemical displacements of hydroxyl protons. In relation to the softened water (δH2O=4.65 ppm), the anolyte with δH2O=(4.23; 4.22) ppm has a displacement of the hydroxyl proton in the «strong field» at Δf=170 Hz. The catholyte with δН2О=(4.56; 4.54) ppm has a displacement in the «strong field» at Δf=40 Hz. It has been proved that the WAM on anolyte (pH=2.43) and EAR has an acidic medium (pH=3.10), WAM in a catholyte (pH=11.08), and EAR has a meadow medium (pH=11.75). These polar ratios of H3O + to OHfor anolyte and catholyte lead to a restructuring of the structure in the alcohol/water system. It can be assumed that the proton exchange is accelerated, while there is one general signal of mobile protons EtOH+H2O. On the basis of the study a fundamental difference between the behavior of the WAM and the vodka prepared on softened water and water after ECA treatment was established. Found systems (alcohol/water) with a stable equilibrium, which are characterized by a high degree of generalization of protons, as well as characteristic rates of exchange for it. Conclusions. The experimental data obtained prove the dependence of the speed and nature of the establishment of the thermodynamic equilibrium due to the relaxation of the WAM. It is shown that relaxation occurs at the simultaneous stabilization of the hydroxyl group of water and ethanol protons.
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