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Number 4 / 2026
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UDC 378.1:628.1/.4
DOI 10.35776/VST.2026.04.01
Skolubovich Iurii, Kosolapova Irina, Kupnitskaia Tat’iana
Training of highly qualified personnel for housing and public utilities in the field of water supply and wastewater disposal: on the occasion of centenary of the Water Supply and Wastewater Disposal Department of NSUACE (Sibstrin)
Summary
In recent years, Russian companies have been experiencing a severe shortage of qualified construction personnel. The shortage is also observed for the professionals in water supply and wastewater disposal, both in industries and engineering companies. The Novosibirsk State University of Architecture and Civil Engineering (Sibstrin) has been training these professionals in the Construction program at the Department of Water Supply and Wastewater Disposal for 100 years, since 1926. Graduates of the department successfully work throughout Russia and overseas. The information on the Department activities over the past years, including research, collaboration with businesses, and training professionals is provided.
Key words
water and wastewater management , scientific research , educational activities , graduate department , centenary , collaboration with businesses , employers and partners
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UDC 628.2:006.034/.053
DOI 10.35776/VST.2026.04.02
Danilovich Dmitrii
A modern system of engineering, technology, and environmental regulation of wastewater treatment facilities: results of 15 years of work
Summary
Transformation of the systems of engineering and environmental regulation of wastewater treatment facilities that has been on the way extremely lively over the past 15 years in this area, aiming to provide a comprehensive view of the work progress; the significance and interrelations of the developed documents; the reasons for the decisions taken and unresolved problems are considered. The main events in reforming the regulation systems are described in chronological order, from the transition from SNiP 2.04.03-85 to CP 32.13330-2012/2018, then to the development of the information and technical reference book ITS 10, and then to the family of the national standards dedicated to the life cycle of wastewater treatment facilities: GOST R 70953-2023 (main technical solutions), GOST R 72113-2025 (commissioning), GOST R 72005-2025 (technological regulations), GOST 25150 (terms and definitions). The following key issues addressed in regulating the life cycle of wastewater treatment facilities: basis of design; front-end engineering design (key technical solutions); basic data for the process engineering; process solutions; calculation algorithms; and streamlining the branch terminology are considered. The final section outlines numerous unresolved issues in regulating wastewater treatment facilities in both engineering and environmental areas.
Key words
wastewater treatment , designing , best available techniques , sewerage treatment facilities , standardization , maintenance , set of rules , commissioning , sludge treatment , information and technical reference book ITS 10 , basic technical solutions , process design , operating procedure
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UDC 628.339:66.066.3
DOI 10.35776/VST.2026.04.03
Alekseyev E. V., Bukina Ol’ga
Coalescence in wastewater treatment technology: specifics and methods
Summary
Characteristics of water-immiscible organic liquids in wastewater from the perspective of the treatment process using coalescence are considered. With the presented material attempts are made to summarize and systematize the information on the natural phenomenon of coalescence that is determined by the physicochemical properties of water-immiscible liquids; to structure the information on the processes occurring during coalescence and the factors influencing them. The main types of emulsified organic liquids in water, including macroemulsions, microemulsions, and nanoemulsions, and their properties are discussed. The key stages of interaction between organic liquid droplets and water resulting in natural demulsification are identified, including droplet transport, droplet collisions, film drainage, film rupture, and droplet coalescence. A classification of coalescence intensification methods and materials used is proposed based on the additional energy required. Demulsification methods are presented for the main types of emulsions in wastewater.
Key words
wastewater , coalescence , macroemulsions , nanoemulsions , microemulsions , natural demulsification , demulsification
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UDC 628.355.3
DOI 10.35776/VST.2026.04.04
Mashchenko Zinaida, Russkikh Iana, Nesterenko O. I., Egorova Yu. A., Garbut Evgenii
Study of amoxicillin affecting the species composition of activated sludge on single and repeated exposure
Summary
Sustainable operation of wastewater treatment facilities is important to prevent the spread of antibiotics and resistance genes into the environment. In this investigation antibiotic amoxicillin affecting activated sludge, a key element of biological wastewater treatment, was studied. The work objective was studying the effect of two amoxicillin dosage forms (dispersible tablets and active pharmaceutical ingredient) under different entry modes (single and multiple) on the structure and function of the activated sludge biocenosis. In the process of laboratory simulations of the wastewater treatment facilities operation, the changes in the species composition of the indicator organisms were estimated by microscoping technique. It was found that repeated entry of amoxicillin, especially in the form of an active pharmaceutical ingredient, produced the most negative impact on the treatment system, namely: inhibition of ciliates and rotifers, degradation of floccules, and the dominance of filamentous bacteria, resulting in sludge bulking and reduced wastewater treatment efficiency. It was shown that the form and mode of the antibiotic entry are the key environmental risk factors for the operation of wastewater treatment facilities.
Key words
activated sludge , wastewater biological treatment , antibiotics , ampicillin , species composition of the activated sludge , general properties of activated sludge
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UDC 628.179.2:669.187.2
DOI 10.35776/VST.2026.04.05
Galkin Iurii, Baskov Evegenii, Ulasovets Evgenii, Obadin Dmitrii, Ermakov Denis, Knaub Elena
Analysis of technical options for the reconstruction of the recycling water system of the electric steelmaking shop of a metallurgical plant
Summary
Process options for the scheduled reconstruction of off-line treatment facilities for the recycling water system of the electric steelmaking shop of a metallurgical plant were analyzed. The reconstruction is being carried out in conjunction with and parallel to the upgrade of the shop without interrupting the operation. The objective of the reconstruction is to improve the quality of the effluent to meet the current technical requirements; increase the flow rate from 1,500 to 2,000 m3/h; and provide for an efficient dewatering and disposal of the sludge generated during the water treatment process. A complicating factor is the lack of available space at the water treatment site surrounded by the existing facilities. Possible options and approaches to upgrading an existing facility based on the advanced Russian and international technologies are analyzed. It is shown that the ECO-PROJECT Group technology based on enhanced single-stage chemical treatment of recycled water in EP OF settling-flocculating tanks and gravity dewatering of sludge in OKUD units, offers a significant advantage in achieving these goals with account of the territorial constraints, operational, time, and economic factors. The presented approaches to solving these problems can find practical and systematic application while looking for a feasible option for reconstructing industrial water supply systems at various industrial enterprises.
Key words
reconstruction , recycling water system , steelmaking shop , EP OF settling and flocculating tank , OKUD apparatus for sludge dewatering , ECO-PROJECT Engineering Company
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UDC 628.85
DOI 10.35776/VST.2026.04.06
Razakov M. A.
Specifics of ensuring the warm air parameters of microclimate
in the local wastewater pumping stations
Summary
The specifics of modeling of warm air conditions in the pumping compartment of a local wastewater pumping station is presented. Calculated values for incoming air temperatures at an average room temperature of +5°C are determined. The required thermal output of air heaters for the input ventilation system is presented for two heating system configurations for the pumping compartment of a pumping station. The main characteristics and assumed values of additional auxiliary coefficients used in modeling air-heating processes in the local wastewater pumping station are described in detail. A review of possible supply and exhaust system configurations for the facilities under consideration is provided. A flash estimate of the supply air temperatures is provided for air- and combined heating with electric cable. This work is of interest to companies specializing in the design, operation, and sales of local pressure wastewater disposal systems for buildings and structures.
Key words
sewerage pumping station , pump , ventilation system , electric motor , air-heating process , microclimate control system
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UDC 628.12
DOI 10.35776/VST.2026.04.07
Perfil’ev Anton
Specifics of pipeline strength calculations for cold water pumping stations
Summary
A practical case of identifying and eliminating design faults in the piping arrangement of a second-lift pumping station in Latakia, Syria, is considered. Despite the basic design conforming to the standard solutions, misalignment of the double-entry pumps occurred during hydraulic tests. This was caused by micro-extensions of the pipelines during filling, creating torques not accounted for by the original support design. Strength verification calculations using SA 03-003-07 method and specialized software packages provided for identifying the problem and developing corrective actions: the introduction of semi-sliding bearings and elimination of vibration dampers. Implementation of these solutions ensured the reliable operation of this strategically important utility infrastructure facility.
Key words
designing , torsion torque , cold water supply pumping stations , pump misalignment , semi-sliding bearing
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