The article provides the study of the formation of acoustic fields in the production space of the mechanical area of the tool room of the machine-building enterprise. The study consists of several stages: mathematical calculation of sound pressure levels (SPL) in a diffuse sound field, during which the values of SPL in 85 points of the room were obtained using the Microsoft Exel software environment; development of an integrated mathematical model of sound propagation in a production space using Mathcad Application; formulation of the recommendations on the application of the model obtained. The model is developed in the software of PTC Mathcad Application, version 15.0 and is optimized for the solution of the basic engineering tasks of the occupational safety specialist when performing acoustic calculations. The development includes both software settings and final 3D graphics.

The article considers topical issues of ensuring fire safety of industrial facilities of the petrochemical industry. The most effective is the extinguishing of flammable liquids fires by powders. One of the new proposals in composition of fire-extinguishing powders is an introduction to the composition the basic salt of aluminum potassium alum, which reduces the caking and increasing the flow rate of the powder.

Thermal analysis and kinetic indicators of the behavior of aluminum-potassium alum allow us to speak about the reliability of fire safety equipment and apparatus for chemical and oil refineries.

The article considers the influence of various parameters on the efficiency of ion exchange process to improve the quality of softening and desalination of water. It presents the dependence of the process on the duration and different characteristics of solutions by varying the concentration and nature of solute. On the basis of the results obtained the authors drawn a conclusion about the applicability of ion exchange for water purification.

The article presents the performed forecast of probable scenarios of accidental oil spills in transshipment activities on the water. It considers the main causes of possible accidents, which include various types of damage to nodal components of transshipment equipment during loading-unloading operations between ships. The authors have carried out the calculations of volumes and masses of accidental spills of diesel fuel, gasoil and fuel oil depending on the conditions of occurrence of accidents. The practical significance of the work, along with the scopes of the results obtained is discussed.

In the framework of parametric modeling, the paper provides the analysis of a unique system «object of waste disposal – protection – locality» from the perspective of its potential danger. It establishes the vertex set of the potential outcomes of violations of the rules of operation of waste disposal and develops a logical model for their realization. Based on the data the authors have tested the logic-probabilistic method of rapid assessment system "object of waste disposal – protection – locality" and got the resulting values of probabilistic realization of the vertex outcome for the current object of disposal. The scheme for determination of protective measures to reduce nitrate concentrations in groundwater was developed. On its basis, the authors have established the necessity to develop instructions for the collection and transportation of object of waste disposal infiltrate.