Providing water to industrial enterprises is one of the important production tasks. In the vast majority of industries, water is used in production processes. The requirements for the quantity and quality of the supplied water are determined by the nature of the process. The fulfillment of these requirements by the water supply system ensures the normal operation of the enterprise and the proper quality of the products. Unsatisfactory operation of water supply systems can lead not only to a deterioration in the quality of products or a rise in the cost of production, but in some cases to damage to equipment and even to dangerous accidents. In addition to water for technological needs, each enterprise requires water for household and drinking needs of workers and employees, as well as for fire extinguishing purposes.
Industrial production uses water in the process of washing raw materials, or equipment, as well as in the technological processes of obtaining finished products. Industrial wastewater is ultimately very specific and often forms complex multicomponent mixtures that are difficult to remove and often interfere with each other when they are removed from the effluent. And this - animal and vegetable fats and oils, fibers of the fleshy tissue, blood, syrups, brines, dyes, flavor enhancers, preservatives and much more. The purification of industrial wastewater to norms is carried out due to the selection of the optimal purification technology, the selection of highly effective engineering environmental equipment, filter elements and chemical reagents based on the results of a qualitative analysis of the effluents generated in the enterprise.
Environmental requirements for discharged wastewater are tightened every year on the initiative of the Government of the country. However, many enterprises continue to ignore such restrictions: they carry out poor-quality water purification, or do not do it in principle. In the process of operation of any industrial enterprise, sewage is formed, which requires special cleaning before discharge into sewage systems. Sewage from any industrial enterprise contains specific contaminants that must be removed (neutralized) before mixing with effluents from another production or settlement. Numerous experience of the advanced countries testifies to the possibility of implementing drainless systems through the reuse of treated wastewater. The reuse of treated wastewater in an industrial water supply system depends entirely on the specific local conditions and technologies used and is mainly determined by its feasibility and feasibility. Many large enterprises have factory treatment plants, which have facilities for mechanical, physicochemical and biological treatment. However, in the majority of cases, such systems are essentially outdated. In this situation, water containing high levels of phosphorus, nitrogen, bacteria and other organics gets into the water bodies, which leads to a deterioration in the ecology of a particular region. Industrial water treatment along with the process of water treatment is a very complex and time-consuming exercise due to the poor quality of water resources in most regions of the country. The introduction of recycling water systems can reduce the amount of discharged sewage and reduce the demand for fresh water, which gives a great economic and environmental effect. This system of the enterprise excludes the entry of industrial wastewater into water bodies or sewage systems. And it allows to solve the most important ecological and economic tasks: to significantly reduce the water consumption of an industrial enterprise, to reduce the loss of valuable components with wastewater, to avoid payment for wastewater disposal, and to exceed the maximum allowable concentrations. The proposed process water treatment systems allow reusing it in the technological cycle.