The article discusses the method of network planning in road construction as a method of rational resource planning. The calculation of the main indicators of the network graph such as the early start of work, the late start of work, the calculation of the critical path as the probable time of the construction duration is given. Analysis of the network schedule allows you to identify the time reserve for reducing construction time by a reasonable redistribution of resources and equipment. The results of this study will allow at the planning stage to analyze the data and choose the most optimal option for construction from the position of the correct distribution of resources and equipment, as well as their savings. At the stage of construction, it will allow you to monitor and control the progress of construction work, thereby monitoring the flow of funds and achieve savings or the optimal amount of construction without risks. Also, the results of the study will allow, without critical changes, to reduce construction time without changing the sequence of construction technology and without increasing mechanisms and labor costs. Subsequently, the results of the study can serve as the basis for developing a mechanism for optimizing network schedules from the position of the redistribution of teams to carry out construction work, as well as a reasonable combination of works that use the same type of mechanisms.

Keywords: road construction, network planning, earlier start of work, late start of work, critical path, resource management, construction duration

The article discusses the results of the development of a feasibility study for the provision of services for the export of concrete products in Perm, presents a market analysis in terms of determining the number of residential buildings connected to the water supply system, but not connected to the centralized sewage system, and discusses problems that impede the development of the project The analysis of the actual and planned number of specialized motor vehicle flights was carried out, revenue for the export of concrete products was determined, priority directions were developed eniya activities dedicated utilization of the company

Keywords: household liquid waste, local treatment facilities with passive aeration, local treatment facilities with active aeration

The article discusses the results of the development of a pilot plant that allows for the process of purification of multicomponent wastewater containing organic impurities of the phenol series based on a combined method in a single apparatus, consistently combining the process of ozonation with the sorption post-treatment of oxidized wastewater, ensuring continuity of the process and allowing the reuse of residual ozone, which greatly increases the degree of wastewater treatment and eliminates the need bridge of ozone destruction. The degree of purification achieved in this way allows the treated wastewater to be directed to the circulating water supply.

Keywords: multicomponent wastewater, wastewater treatment from organic compounds of the phenol series, ozonation, sorption, adsorption, pilot plant

The article discusses the results of the development of the installation, which allows to ensure the process of purification of multicomponent wastewater containing organic impurities of the phenol series based on the combined method in a single apparatus, consistently combining the ozonation process with the sorption purification of oxidized wastewater, ensuring the continuity of the process and allowing the reuse of residual ozone, which greatly increases the degree of wastewater treatment and eliminates the need for the destruction of ozo on. The degree of purification achieved in this way allows the treated wastewater to be directed to the circulating water supply. The novelty of the task and the lack of available information about the combined process determined the nature and scope of experimental studies. There was a need to develop an apparatus that provides the process of purification of wastewater containing mixtures of organic compounds of the phenol series, consistently combining the process of ozonation with sorption purification of oxidized wastewater, ensuring the continuity of the process. The achieved degree of purification allows directing the treated wastewater to the circulating water supply.

Keywords: multicomponent wastewater, wastewater treatment from organic compounds of the phenol series, ozonation, sorption, adsorption, oxidation-sorption column

The article discusses the results of the development of a methodology based on the principles of subject-augmented management for choosing a contractor in construction when placing orders for contract bidding to meet state and municipal needs. The considered methodology is based on determining criteria for evaluating bidders for contract bidding, processing expert information, translating quality indicators into qualimetric units of measurement, and also modeling the preferences of bidders. The principle of subject-oriented management, on which this methodology is based, involves the use of a non-manipulated mechanism. The application of this methodology on the principles of subject-oriented management becomes relevant when the individual with different preferences is involved in setting the minimum initial contract price. The urgency of finding methods for objectively selecting the winners of tenders in construction is due to the established practice of allocating government contracts through an auction mechanism, where the only criterion for determining the winner is to offer a minimum cost of work, which directly affects the quality of work performed and services rendered. The study of the relevance of the investigated problem revealed the fact that to evaluate and account for technical and technological solutions used to select the winner of contract bidding it is necessary to use qualimetric methods based on non-manipulable mechanisms - exclusion of any kind of manipulation of the results of the bidding in their interests. The technique describes the concept of contract bidding. A system of criteria is proposed that is most fully capable of evaluating the participant’s application. The criteria can be divided into three groups: the first group describes the motivation of the participant, the second group evaluates the tender proposal, separately allocated the contract price.

Keywords: contractors, municipal order, subject-oriented management, non-manipulable mechanisms, contract bidding in construction, integrated assessment, integral indicator