Sources of financing technologies for monitoring and purifying atmospheric air (for example, the city of Mariupol)

Summary The search for funding sources for improving the technologies for monitoring and purifying atmospheric air, including closed low-waste ones, is a topical research topic. A closed low-waste technology for utilization of dust and other harmful substances during the operation and repair of equipment of metallurgical enterprises in Mariupol is presented, which complies with international standards and the law of Ukraine “On Waste”. Disposal of dust and other harmful substances is carried out in accordance with sanitary rules, the order of accumulation, setting the maximum amount and organizing the logistics of their transportation. Closed low-waste technology is aimed at monitoring, cleaning, filtering and neutralizing elements of harmful substances, dust, welding aerosols (WA). The sanitary and hygienic conditions of the operating metallurgical enterprises and the population of Mariupol have been significantly improved. Dusty waste containing expensive alloying elements in the solid component (SC) and in the gaseous component (GC) are briquetted into granules, bags, which are reused in metallurgy. To accelerate the implementation of the proposed closed low-waste technology, the authors investigated and proposed to introduce a methodology aimed at optimizing funding sources, including a certain set of borrowed, own, credit and indirect funding sources.