Effects of electric pulse processing in increasing the efficiency of cotton oil from technical seeds

This article provides an analysis of the global demand for cottonseed oil consumption, the growing trend of cottonseed oil production and methods of obtaining vegetable oil based on modern technologies. Based on the results of the analysis, the electro technology of electric pulse processing of seed pulp was proposed to increase the efficiency of obtaining cottonseed oil from technical seeds. Experiments have shown that the maximum degree of damage to the seed nucleus by electric pulse treatment depends on the amount of oil extraction. It is also possible to reduce the roasting temperature of electrically pulsed seed pulp to 70-75 °C, and these parameters are considered be energy-saving parameters. It is possible to increase the amount of oil extracted from the seed and reduce energy costs in the technology through electro-pulse processing.

Effect of Electric Pulse Treatment on Hot-Dip Aluminizing Coating of Ductile Iron

In this paper, hot-dip aluminizing of ferrite nodular cast iron was carried out after treating liquid aluminum with different electrical pulse parameters. Compared with that of conventional hot-dip aluminizing, the coating structure of the treated sample did not change, the surface was smooth and continuous, and the solidification structure was more uniform. When high voltage and large capacitance were used to treat the liquid aluminum, the thickness and compactness of the coating surface layer increased. The thickness of the alloy layer decreased, and, the compactness and the micro hardness increased, so the electric pulse had a certain inhibition on the formation of the alloy layer. The growth kinetics of the alloy layer showed that the rate-time index decreased from 0.60 for the conventional sample to 0.38 for the electric pulse treated sample. The growth of the alloy layer was controlled by diffusion and interface reaction, but only by diffusion. The AC impedance and polarization curves of the coating showed that the corrosion resistance of hot-dip coating on nodular cast iron was improved by electric pulse treatment.

Analysis of the results of the influence of electric pulse treatment on purulent waste

High standards of sanitary and epidemiological safety at large pig-feeding complexes are one of the prerequisites for the production of high-quality pork. Livestock complexes are a source of accumulation of a large amount of manure runoff. Now there is a large tendency of environmental destruction and irreversible loss of natural resources due to pollution by waste from livestock enterprises. The use of new technologies for treating wastewater from food enterprises, industrial, livestock breeding is an urgent problem. The use of accelerated composting of the dewatered part of the effluent is one of the ways to increase the efficiency of using waste from pig farms. For this, scientists have developed a standard series of installations that ensure the conversion of waste into high-quality organic fertilizer, however, the issue of further use of the liquid part of the waste has not been fully worked out. That is why the use of the latest wastewater treatment technologies from industrial enterprises, food and agriculture is an urgent problem. One of the promising ways to improve treatment technologies for organic pollution is the use of cavitation phenomena and electrohydraulic shock in the aquatic environment. Analysis of existing wastewater treatment technologies shows that today environmentally friendly methods are being intensively developed, which are an alternative to chlorination and other chemicals. In recent years, the development and research of the operation of electro-pulse methods for disinfecting liquids, based on the creation of a high-voltage discharge in a liquid, the so-called electrohydraulic effect, have been actively pursued. Taking into account the long-term studies of the processes occurring during the electrohydraulic shock, the implementation of this method has not gone beyond the bench tests and is at the development stages. To study the effect of electrohydraulic treatment on chemical transformations of organic substances and disinfection, an experimental electric pulse installation has been developed. Waste waters of livestock complexes are characterized by organic and mineral pollution, they can have a different composition, which makes it impossible to determine the individual components of pollution. Therefore, it became necessary to find such indicators that would characterize certain properties of water without special identification of individual substances. To assess the efficiency of the electric pulse treatment of manure runoff, the BOD indicator was chosen - biological oxygen consumption and dry residue. Key words: slurry, pig feeding complex, electric pulse treatment, biological oxygen consumption