regeneration

The article highlights the methodological aspects of the architect's work in the historical environment, reveals current trends and processes of transformation of the architectural and urban planning structure of historical cities. The main approaches to their reproduction and transformation are considered and analyzed. The concept of the central part of the historical city and the method of localization of its borders are revealed. The main requirements for the reproduction and development of buildings in the central part of historical cities are highlighted.

The article analyzes the complex of historical and archaeological materials related to the architecture of the lost St. Peter's Church in Przemysl, which existed approximately from the XII-XIII centuries to 1679. Based on the systematization of the available data, an attempt is made to recreate the chronology of changes in the planning structure and appearance of the structure from the time of its appearance to dismantling.

The enhancement factor of air oxygen absorption by quinhydrone absorbing solution in the apparatus with a continuous bubbling layer and the rate constant for the reaction of chemisorbed oxygen and the reducing form of quinhydrone oligomers have been determined. The obtained results are of practical importance for the choice of mass-transfer apparatus for the regeneration of quinhydrone absorbing solution when removing hydrogen sulfide from gases.

The article presents the practices of industrial sites adaptation to the modern requirements using the example of Lviv. It has been analysed, that implementation of brand new technologies for production caused the shift in urban development pattern. This has led to the operation cessation of industrial areas, which are surrounded by residential and public buildings, resulted in their breakdown, and become a condition for their perception as the “exclusion zone”, which hinders planning and functional city development.

The initial activity of acid zeolites in n-hexane cracking and influence of their regeneration depth on residual activity using the method of discrete-consecutive coke micro oxidation have been investigated. It was found that oxidation by 5-10 pulses of oxygen properly reflects the activity of catalysts based on faujasite and pentasil, while for mordenite which has increased susceptibility to blocking of channels by coke, such quantity of oxygen is not enough.

To regain the operational properties of the waste oils are applied different methods of purification and regeneration which are based on the physical, physical and chemical processes and remove the "aging" and contaminating products. However, the most spread are methods of chemical regeneration when the concentrated sulfuric acid or alkali is used. At the same time applying these methods cause another problem of hazardous waste utilization.

The problem of accumulation of spent sorbents is considered in the article; The main methods of desorption of pollutants and regeneration of sorbents are described; the effectiveness of the method of chemical desorption for extracting Nikel ions (II) from bentonite clays is investigated; the main ways of utilization of spent sorbents are considered

The results of analysis, systematization and summarizing of the main technical and economic indicators of products quality control are given in the article. They, in complex with the carried out research and the constructed economic and mathematical model of assessment of labor costs of production processes with regeneration (restoration), form accounting and analytical support for employees in the quality management.