Hexaqua magnesium chlorine, bishofite, almost never occurred in the fossil salt deposits until recently, while industry has used artificially produced magnesium chloride. The discovery of bishofite deposits in the Lower Volga region (both for raw materials purity of MgCl2 up to 95-98%, and for reserves about 500 billion tons) was a unique event. The use of bischofite consists in the salt compositions of sand to protect roads from icing yet. The chapter represents the results summary of the bishofite solutions electrochemical processing with the purpose of obtaining solutions with the antibacterial properties complex the use of which can be recommended for pre-plant seeds treatment, plant protection from fungal effects, which allowed, as shown by experiments on the crops cultivation, to increase yields up to two-three times, and also to use for disinfection of domestic and industrial wastewater in agricultural enterprises. The technological characteristics of the using electrochemical device are considered in the chapter.

The article presents the research results of the sorption purification peculiarities of aquatic environment where surface-active substances (SAS) appear during the operation.

Intensification of anaerobic processing of animal waste has a significant effect in comparison with other methods, which is expressed in a significant reduction in the pollution of environmental objects (air, water and soil) with chemicals and pathogenic microflora. The paper shows the developed technology of anaerobic processing of animal products, which allows one, on the one hand, to solve the environmental problems of animal husbandry, and on the other hand, to produce biogas fuel. The design features of the experimental setup for research are considered. The main indicators of the initial and re-loading manure and the properties of the resulting biogas have been analyzed. It was concluded that a promising direction for increasing the yield of biogas, as well as methane in its composition, it is advisable to improve the design of the bioreactor, to increase the productivity of the bioreactor and reduce the HRT through the use of a leaching layer and immobilization of microorganisms. At the same time, preliminary grinding of the raw material allows one to obtain a relatively better result.

The research results showed that the problem of resource saving during the chromium electroplating from standard electrolyte can be solved. Formulated requirements that ensure the implementation of the set tasks without costs for new equipment and chemical reagents. It has been proved that organic compounds of a certain structure introduced into the electrolyte influence the chromium electroplating in such a way that all technological characteristics, coating properties, physical and chemical characteristics of the solution change. The chrome plating process has been optimized using the experimental mathematical planning method, which made it possible to develop methods for obtaining chrome coatings protected by security documents on the basis of experimental data. All the proposed methods allow solving the problem of resource saving and environmental safety. The authors have consistently studied resource-saving and environmental indicators. In galvanic chromium plating technology, resource-saving indicators are: energy intensity; metal intensity; water intensity; and labour intensity. Environmental indicators: industrial emissions: gas emissions, waste water; occupational diseases.

Биообрастание – серьезная проблема для водохозяйственных компаний. Микробное загрязнение является серьезной проблемой в области очистки воды, в том числе на нефтеперерабатывающих заводах, целлюлозно-бумажной промышленности, пищевой и фармацевтической промышленности и технологиях разделения мембран. Повышение уровня микрофлоры при-водит к эксплуатационным проблемам, среди которых наиболее важным является снижение эффективности технологического процесса, биокоррозии, что приводит к засорению труб продуктами коррозии и микробной биомассой. Несоблюдение чистоты в системе представляет потенциальную опасность для здоровья технологического персонала. Многие научные разработки касаются предотвращения биологического обрастания. Биообрастание способствует возникновению серьезных аварий на уровне водозаборных сооружений. Ученые, изучающие проблемы коррозии в России и исследования по определению эффективности современных методов уменьшения коррозии металлических поверхностей, обнаружили, что причиной коррозионных повреждений является образование продуктов коррозии на металле из-за компонентов в сточных водах.