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UDC 628.35:661.63
Rouzhitskaya O. A., Gogina Elena, Salomeyev V. P.
Using reinforced medium for the enhancement of phosphate and organics removal from wastewater
Summary
The results of investigating advanced phosphate removal from domestic wastewater are presented. The method of advanced wastewater treatment with the use of reinforced medium is suggested. The highest phosphate removal efficiency is achieved with the help of the technology without activated sludge recycling. The enhancing effect of reinforced medium on biological removal of organics is shown. The activity coefficients of the biological process with the use of reinforced medium are determined.
Key words
wastewater , bioreactor , sludge index , biogenic elements , active sludge dosage , dissolved iron , reinforced medium
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UDC 628.356.57.001.5
SHVETSOV V. N., MOROZOVA K. M., Smirnova I. I., Semenov Mikhail, Lezhnev M. L., Ryzhakov G. G., Gubaydullin T. M.
The Use of Bioblocks at Wastewater Treatment Facilities
Summary
Results of the laboratory study of an aeration tank operation for the purpose of technological comparison of two new modified bioblocks, BBZ-45P-14 and BBZ-65P-10, having the similar surface structure but different geometric parameters are presented. It is shown that these bioblocks can be used successfully in aeration tanks for immobilization of microorganisms of activated sludge. The tests of loading material samples have been carried out at biomass density in bioblocks of 0,3–0,36 kg/kg, at equivalent concentration of sludge in the system – 2,3 g/l. The bioblock BBZ-65P-10 is used preferably in aeration tanks, BBZ-45P-14 – in aeration tanks with low load on activated sludge, blocks of aftertreatment for additional clarification of water treated biologically and in biofilters for build-up of biological film. The comparison of results of tests on rate of activated sludge adhesion obtained with new types of bioblocks and BBZ-65 tested earlier makes it possible to conclude that the adhesion process goes off more intensively on rougher surfaces of modified models of bioblocks.
Key words
wastewater , biological treatment , biofilter , bioblock , aeration tank , secondary settling tank , adhesion , activated sludge
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UDC 628.35.004.4
Noskova I. A., Bazhenov Viktor, Epov A. N.
The use of simulation modeling packages for wastewater treatment technologies
Summary
The subjects of the study were: comparative analysis of software packages for simulation modeling of wastewater treatment processes to manage design and operation issues; and also assessment of basic data for the formation of mathematical model inputs. The basic parameters of the description of the most complicated ASM activated sludge models have been analyzed. The results of the studies are represented by the analysis of the examples: distribution of COD fractions under local conditions of Russia and some other countries; typical irregularity of wastewater flow and basic pollutants hourly input; design and measured oxygen uptake rate (OUR); model time calibration process, optimization of the denitrification zone in aeration tank for MUCT process. The analysis of the advanced software defined GPS-X (Hydromantis, Canada) design software as the most complete and comprehensive product. The suggested technique includes a set of measures: determining COD fractionation with the use of OxiTop (WTW, Germany) analyzer; assessment of basic parameters of irregular basic pollution mass input; respirometry studies; statistic processing of data obtained at the facilities. In the process of simulation modeling the hydrodynamic structure of the wastewater treatment facilities appears as series-connected mixer chambers. The number of chambers is assigned depending on the length and width of the facility, flow velocity, mixing rate, availability of internal baffles, and also inner recycle streams. The simulation model provides for the optimization of the following parameters: zone ratio in the aeration tank, sludge age, dissolved oxygen concentration, recycle ratio values, as well as the parameters of the automatic control system.
Key words
wastewater , biological treatment , mathematic modelling , ASM models , simulation modeling , GPS-X software
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UDC 628.2/.4:006.35
Kharkina O. V.
The use of methods for calculating biological wastewater treatment facilities (for discussion)
Summary
Current requirements to the quality of effluent of wastewater treatment facilities call for introducing nitrification, denitrification, and phosphorus removal processes into the biological wastewater treatment, in addition to aerobic oxidation of organic compounds. The impossibility of ensuring the quality of effluents to be discharged into fishery water bodies in terms of nutrients MPCs values is explained by the incorrect solutions designed for the introduction of biological wastewater treatment processes, and incorrect approaches to the design of facilities. The section «Wastewater disposal and treatment» of the Expert and Technological Council of the Russian Water Supply and Wastewater Association receives a lot of questions from water professionals interested in the methods of calculating wastewater treatment facilities and, primarily, biological treatment facilities. In this regard, the section «Wastewater disposal and treatment» of ETC RAWW develops Recommendations on the use of methods for calculating wastewater treatment facilities. This document, though not mandatory for execution, will contain information reflecting the viewpoints of the research workers, engineers, technologists, designers and experts in the operation of wastewater treatment facilities, members of the section. The Recommendations will include the results of calculations performed according to various methods and models, as well as conclusions indicating the possibility or impossibility of using certain calculation methods, as well as their limitations and correctness. It is planned to publish by parts the information on various calculation methods, techniques, approaches to calculations, as well as documents containing one or another approach to the design of wastewater treatment facilities is prescribed. After the analysis has been carried out, the consolidated material will be published in the form of Recommendations. This paper presents an analysis of the information contained in SP 32.13330.2018 on the calculation of biological wastewater treatment facilities as the most urgent problem presently.
Key words
wastewater , biological treatment , nutrients removal , regulatory requirements , method of calculating treatment facilities
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DOI 10.35776/VST.2021.03.06
UDC 628.345
Alekseyev E. V.
The use of «coasorption» concept while describing the effect of coagulants on the wastewater aqua systems (for discussion)
Summary
The widespread use of chemical coagulation in purification of natural water and industrial wastewater is due, on the one hand, to the complex chemical composition and phase-disperse state of their aqua systems, and on the other hand, to the multifactorial effect of coagulants on them. The main mechanisms of interaction between coagulants and pollutants are considered through the example of industrial wastewater treatment containing organic substances (surfactants and synthetic dyes). The physicochemical term «coagulation» reflects only one of the mechanisms of the effect of coagulants on pollutants. The currently accepted process parameters «dose of coagulant» and «specific dose of coagulant» do not reflect the variety of interactions of pollutants with coagulant salts either, and are not linked to the result of coagulation. This makes it difficult to describe the collective effect of physicochemical processes while adding coagulants to the treated water and to quantify it. The solution to the problem is possible introducing the concept of «coasorption» that determines the multifactorial origin of the interaction of coagulants and pollutants in the processes of wastewater treatment by coagulation; and the process parameter «specific coasorption» that establishes a quantitative relationship between the concentrations of pollutants in raw wastewater and effluent with a dose of coagulant. The specific coasorption functions are graphically presented in the form of coasorption isotherms for two types of surfactants and synthetic dyes. Based on the results of the analysis of the features of the isotherms, it is shown that they reflect different mechanisms of interaction between coagulants and pollutants. The use of coasorption as a technological concept provides for identifying the mechanisms of interaction of pollutants with a coagulant and establishing the best conditions for the coagulation process. The functional description of the coasorption isotherms allows extrapolating the results of trial coagulation in a wide range of pollutant concentrations. The practical importance of specific coasorption isotherms provides for determining the dosages of chemicals during coagulation of water based on the initial concentration of pollutants and effluent standard.
Key words
wastewater , coagulation , sorption , coagulation , aqua system , heterocoagulation , adagulation , coasorption , specific coasorption
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UDC 628.349.087.5
IVKIN P. A., KAZAKOV A. V., BELEVCEV A. N., ZHAVORONKOVA V. I., BAJKOVA S. A., MELNIKOVA N. N.
Test of Technology of Galvanochemical Wastewater Treatment for Arsenic Compounds
Summary
The substantiation of perspectivity of application of the galvanochemical method of arsenic removal from wastewater is made. Results of the laboratory study of efficiency of galvanochemical treatment of arsenic-containing model solutions and natural wastewater of an intergrated copper-sulphur plant are presented. It is shown, that application of this technology makes it possible to remove arsenic up to values of Maximum Permissible Concentration (MPC) for water objects. Efficiency and arsenic removal rate depend insignificantly on an initial pH value (in the range of 1,5–9,5). Duration of the galvanochemical treatment ensuring the obtaining of arsenic residual concentrations on a level with MPC depends on its initial concentration in media treated and on a galvanic couple used. The process of arsenic removal progresses with a higher rate when an «iron – copper» galvanic couple is used. When an «iron – crushed coke» galvanic couple is used the duration of treatment necessary for obtaining the arsenic concentration on a level with MPC increases in 2–3 times. Basic flow charts of the galvanochemical treatment of wastewater depending on the initial concentration of arsenic are offered.
Key words
wastewater , arsenic , reagent methods , galvanochemical treatment , toxicity
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UDC 628.35
DOI 10.35776/VST.2025.10.03
Andreev Sergei, Stepanov Sergei, Zolotukhin Aleksei, Strelkov Aleksandr
Study of the aeration intensity effect in a bioreactor on the pressure head
Summary
The design of a bioreactor with vertically arranged anoxic and aerobic zones is described. The bioreactor is designed for wastewater biological treatment at the facilities ranging from ultra-small to low-capacity ones. It is shown that the given bioreactor type is characterized by the ease of operation owing to the lack of circulation pumps and mixers. The pressure head dependence on the aeration intensity and gas filling coefficient in the aerobic zone of the bioreactor is presented. It has been established that the gas filling coefficient in the aerobic zone of a bioreactor operating under static conditions eliminating liquid overflow into the anoxic zone can be calculated as the ratio of the aeration intensity to the average air bubble rise rate. It has been determined that air bubbles generated in industrial pneumatic fine-bubble aerators rise in a turbulent mode at a rate proportional to the bubble diameter raised to the power of minus 0.4. The results obtained in this investigation will be used in the second part of the experimental and theoretical studies that will provide for determining the dependence of the circulation flow rate on the aeration parameters, and developing a mathematical model of the fluid flow in a bioreactor with the vertical arrangement of aerobic and anoxic zones.
Key words
wastewater , biological treatment , aeration , bioreactor , anoxic zone , aerobic zone , gas filling coefficient
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DOI 10.35776/VST.2022.09.07
UDC 628.16.081.32
Ahmed Sameh Abdelfattah Araby, Gogina Elena
Study of the competitive adsorption of a mixture of phenol and ammonia nitrogen on activated carbon
Summary
Phenol and ammonia nitrogen are considered typical pollutants present in industrial wastewater from various industries. Application of the response surface methodology (RSM) was used to develop a mathematical model for the simultaneous adsorption of phenol and ammonia nitrogen on activated carbon. The combined effect of pH, carbon doses, the initial concentration of phenol, and the initial concentration of ammonia nitrogen on the efficiency of adsorption was studied. Simulation using RSM gave a nontransformed quadratic model for phenol removal and a square root transformed linear model for ammonia nitrogen removal. The results of the study showed a positive effect of increasing the carbon dose on the adsorption of phenol, while an increase in the initial concentration of phenol had a negative effect on the efficiency of its adsorption. Almost complete removal of phenol was achieved within 90 minutes at pH4. In addition, the adsorption of ammonia nitrogen improved with increasing pH and carbon dose. The presence of ammonia nitrogen adversely affected the removal of phenol with pH increasing. However, the presence of phenol does not affect the adsorption of ammonia nitrogen.
Key words
wastewater , simulation , phenols , adsorption , ammonia nitrogen , activated carbon
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UDC 628.35:661.5
Strelkov Aleksandr, Stepanov Sergei, Blinkova L. A., MOROZOVA K. M., Belyakov A. V.
Investigating the processes of single-stage biological treatment
of oil refinery wastewater
Summary
The results of investigating the operation of the Novokuibyshevsk oil refinery waste biological treatment facilities are presented. It was found that denitrification process was not possible in two-stage process of wastewater treatment because of
high concentration of dissolved oxygen in the denitrification tank and low concentration of organics in raw wastewater. Full-scale experiment with single-stage mode of operation of the entire biological treatment facilities was carried out. After the first-stage aeration tanks de-commissioning the total activated sludge amount in the system increased almost 1.5-fold. Sludge concentration in the aeration tanks (of the second stage) increased from 0.5–1 to 2–2.5 mg/l; COD sludge load was reduced from 143 to 77 mg/(g·day). The improved nitrification efficiency and denitrification start were recorded. Kinetic constants were determined for the processes of organics and oil products oxidation, for nitrification and denitrification required for designing wastewater treatment facilities with nitrification-denitrification technology. Inhibition by substrate was found at the concentration of oil products in effluent higher than 4 mg/l. Nitrification inhibition was observed at ammonia nitrogen concentration in effluent higher than 1 mg/l. The full-scale experiment of conversion of the Novokuibyshevsk oil refinery waste biological treatment facilities to one-stage operation provided for testing on commercial scale the advanced nitrification-denitrification technology and recommending this process flow scheme for the introduction at other RF oil refineries.
Key words
wastewater , biological treatment , nitrification , denitrification , oil refinery , kinetic constant
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UDC 628.35:661.5
Stepanov Sergei, SHVETSOV V. N., MOROZOVA K. M., Belyakov A. V., Blinkova L. A.
Investigating nitrification-denitrification technologies of oily wastewater treatment
Summary
The results of investigating biological treatment by nitrification-denitrification technology of oily wastes of the Novokuybyshevsky oil refinery are presented. Possible meeting the advanced requirements to the effluent quality in relation to nitrogen compounds, particularly, by industrial wastewater treatment without blending with municipal wastewater is shown. The kinetic constants of nitrification-denitrification processes and oxidation of oil products required for designing wastewater treatment facilities are determined.
key words
wastewater , biological treatment , nitrification , denitrification , oil refinery , kinetic constant
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UDC 628.35:661.5.63
Gogina Elena
Investigating process flow scheme of wastewater biological treatment for the upgrade of the treatment facilities
Summary
The results of experimental investigations of the process flow scheme of wastewater biological treatment are given. The process of ammonia nitrogen removal from wastewater under low oxygen concentration conditions was studied. Kinetic functions for calculating ammonium nitrogen concentrations in treated water at bioreactor operation were determined. The technology was applied in the construction and upgrade of the treatment facilities in a number of cities and settlements of the Moscow Region.
Key words
wastewater , biological treatment , bioreactor , ammonia nitrogen
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DOI 10.35776/VST.2021.09.05
UDC 628.345.1
Egorova Yu. A., Stepanov Sergei, Nesterenko O. I., Strelkova T. A.
Study of the chemical removal of phosphorus at the municipal wastewater treatment facilities of the Samara urban district
Summary
The parameters of the chemical removal of phosphorus from wastewater in Samara have been determined. The studies were carried out by the method of trial coagulation of raw wastewater, primary effluent and mixed liquor from the aeration tanks. It was found that at the same doses of the chemical, the enhanced removal of phosphorus occurs from the sludge mixture. While using aluminum sulfate, the removal of phosphorus phosphates was enhanced by 0.3–1.6 mg/l more than while adding Aqua-Aurat-30TM aluminum polyoxychloride, depending on the initial concentrations. The concentration of residual aluminum in the effluent while using Aqua-Aurat-30TM was on average 8% lower than while using aluminum sulfate – 0.168–0.221 mg/l versus 0.173–0.274 mg/l. Comparative results of the chemical coagulation with the use of flocculants and without them showed that additional dosing flocculant did not result in an increase in the efficiency of phosphorus removal. It was determined that to achieve above 85% treatment efficiency at a phosphorus-phosphate concentration in the mixed liquor of 3.7–5.2 mg/l, a 1.3–1.8-fold excess of aluminum sulfate was required, and at lower concentrations of 1.23– 1.87 mg/l, this efficiency was achieved only with a 3.1–5-fold excess of the chemical. The research results were used in the project of upgrading a tertiary treatment plant at the Samara wastewater treatment facilities, that provided for the chemical removal of phosphorus in addition to the enhanced process of biological removal of phosphorus. The accepted calculated dose of aluminum sulfate 10 mg/l for a commercial product will reduce the concentration of phosphates after the main stage of biological treatment from 0.53 to 0.2 mg/l.
Key words
wastewater , flocculant , sewerage treatment facilities , aftertreatment , chemical phosphorus removal , coagulants
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UDC 628.394(597-25)
Nguyen Dinh Dap, Volshanik V. V., Dzhumagulova N. T.
The study of the ecological state of the To Lich River in Hanoi
Summary
To Lich is a big river in the city of Hanoi, the capital of Vietnam. The river system receives municipal wastewater as well as effluents from 100 industrial enterprises located in five industrial areas in the central part of Hanoi. The To Lich River channel has accumulated about 284 thousand m3 of sediments, 7347 tons of different metals. The total load of nine metals on the river estuary is 161.7 kg/day. The information on the method and results of the field studies of the To Lich water and riverbed pollution with heavy metals is presented. The study was aiming at the assessment of the total load of heavy metals discharged and accumulated in the bottom deposits of separate To Lich River reaches (at the point of effluent discharges) as well as the assessment of the daily intake of organic carbon and heavy metals at the river estuary. To evaluate the general ecological state of the river the analysis of not only the river water quality but also the quality of the sediments was carried out. At that the following parameters were entered: water quality index (WQI) and sediment quality index (SQI) on the basis of seven pollutants: for water –chromium (Cr), nickel (Ni), manganese (Mn), copper (Cu), zinc (Zn), arsenic (As) and lead (Pb); for sediments –Cr, Ni, Cu, Zn and Pb.
Key words
wastewater , heavy metals , drinking water supply , water quality parameters , water supply , water sampling
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UDC 628.166.085
SMIRNOV A. D., Strelkov Aleksandr, Tkachev Andrei
Revisiting the selection of wastewater disinfection technology
Summary
Environmental law enforcement in relation to discharging chlorine and organochlorine contaminants induces the use of advanced safe and efficient chlorine free methods of wastewater disinfection. The use of ultraviolet irradiation provides for meeting all the requirements imposed on the technology of wastewater disinfection eliminating any adverse impact on the environment. The use of this technology eliminates possible penalty charges for polluting the environment with chlorine and organochlorine contaminants. The economic comparison of two disinfection methods (the application of sodium hypochlorite and UV-irradiation) reveals significant operational benefit when introducing UV-disinfection. Annual savings of operational expenditures is 50% and more at the comparable capital expenditures. The advantages of UV-disinfection are as follows: efficiency in relation to all types of indicator and pathogenic microorganisms, whereas chlorine-containing chemicals do not often ensure fair efficiency in viruses and protozoa elimination; no by-products are generated; no adverse impact on the water bodies is produced (consequently, no penalties); no threat of overdosing; easy and simple control over the disinfection process; no need in dosing system and additional control systems; disinfection effect independence from fluctuations of effluents quality within the limits of the design parameters; minimum footprint; no additional facilities are needed (e. g., contact tank for dechlorination); possible retrofitting into the existing buildings or facilities, for example, in the process of wastewater treatment facilities upgrade and chlorination replacement; low operational expenditures (lamp replacing once in a year and a half – two years and energy saving). In this context switching to chlorine free disinfection technologies that eliminate the formation of organochlorine contaminants is a correct solution.
Key words
chlorination , disinfection , wastewater , dechlorination , ultraviolet irradiation , effluents charge
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UDC 628.218
Doskina E. P., Moskvicheva A. V., Moskvicheva E. V.
On the application of permissible pollution limit values for effluents discharged into the wastewater disposal system of Volgograd
Summary
The RF legislation in force regulates the permissible concentrations of pollutants discharged to the sewers and municipal and communal treatment facilities. For many communities compliance with the calculated values of the permissible concentrations turned to be technically unachievable. The standards in force in Volgograd for effluent pollution concentrations discharged by the users into the municipal sewer were calculated for all the users except the residential sector. This resulted in establishing unreasonably stringent limits to certain pollutants. In order to comply with these requirements every industrial user would have to build separate local treatment facilities which in its turn eliminate the need in the municipal treatment facilities. The analysis of the limit values of pollutants discharged into the Volgograd wastewater disposal system from 1997 to 2011 was carried out. The limit values adopted in 2011 and in force at present have been too low compared to the actual quality of domestic sewage; this can produce a disturbing effect on the performance of the biological treatment facilities and result in the pollution of the water bodies. The system of regulating the quality of effluents discharged by the users is considered. The causes of unreasonably stringent permissible pollution concentrations set by calculations; and the duality of the requirements set to the effluent quality are presented. The conclusion of the necessary revision of the regulated limit values with account of the legislation in force and operation of the treatment facilities in accordance with the regulations is made.
Key words
treatment facilities , wastewater , water disposal system , pollutants , regulation of permissible discharge
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UDC 628.34
Fedorovskaya T. G., Koudryashova G. N.
On high alkaline sulfide-containing wastewater treatment
Summary
One of the main problems experienced during tannery wastewater transportation and treatment is hydrogen sulfide release that causes pipeline corrosion, gas contamination of premises and wastewater treatment facilities territory. The methods of sulfide-containing wastewater treatment have been well investigated; however, the reason of hydrogen sulfide release is still urgent and needs explanation. Theoretic and experimental studies carried out at the Moscow State University of Civil Engineering allowed explaining the reasons of hydrogen sulfide release from high alkaline solutions. Experimental studies with standardized test solutions of sodium sulfide showed that their alkalization inhibited hydrogen sulfide release, however required large amounts of alkaline agent and could be hardly adopted for practical use.
Key words
cleansing , wastewater , hydrogen sulfide , tannery , sulfide , high alkaline solution
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DOI 10.35776/VST.2022.08.05
UDC 628.35
Epov A. N., Danilovich Dmitrii
On the discussion on the comparison of methods for calculating aeration tanks with the removal of nitrogen and phosphorus (for the discussion)
Summary
The arguments of the authors of the book «Calculation and process engineering of processes and facilities for the removal of nitrogen and phosphorus from municipal wastewater» are given in response to the critical article by O. V. Khar’kina in the «VST» journal on the method proposed for calculating aeration tanks. Based on the literature review, it is shown that the calculation of aeration tanks in terms of the sludge age is not empirical, however based on the kinetic laws; and, herewith, in the field of application recommended by the authors, the use of a smaller number of empirical coefficients is required eliminating their choice. Explanations are given why accounting for the concentration of dissolved oxygen and calculation for the nitrite nitrogen concentrations less than 0.05 mg/l should not be included in the calculation procedure. Explanations are given for the dependence of kinetic coefficients on the concentrations in the effluent because of the change in the species composition of nitrifiers according to the theory of competitive exclusion of species. Information is provided on the successful comparison of the methods proposed by the authors with the simulation in the GPS-X program and on the operation of a new block of the Liubertsy Wastewater Treatment Facilities (Moscow), calculated according to the method. The operation of the block testifies to the complete sufficiency of the volume of the aerobic zone of the aeration tanks.
Key words
wastewater , biological treatment , nitrification , simulation , sludge age , kinetic coefficients
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UDC 628.336.42
Zlatkovskii O. A.
EKOTON chamber-membrane filter presses
Summary
The wide range of chamber and membrane filter press application alongside with the design and control system improvements allow considering this type of equipment as a solution to numerous typical and special tasks of industrial slurry and wastewater filtration. At the same time the large variability of tasks necessitates designing a wide standard series of filter presses with different specifications. Individual filter press selection and manufacture suppose considering both filtration properties of particular slurry and the parameters of the operational flow scheme, mode of operation, site-specific conditions, production resource, characteristics of the related equipment, filter press place in the general layout of the filtration area.
Key words
wastewater , dehydration , capacity , filtration , moisture contents , suspension , filtering cake , chamber filter press , membrane filter press
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UDC 628:339
Korziukov N. I., Zviagin G. K., Os'kin D. V.
WAMGROUP® Company – 10 years in Russia
Summary
WAMGROUP® Italian Company has been among world leaders in developing and manufacturing equipment for mechanical treatment of wastewater. The specialists of the company offer a number of innovative solutions that meet the specific demands of the companies designing water wastewater treatment facilities. The information on the implemented project of wastewater treatment facilities in Bokino village of the Tambov Region in the Tambov Area with the use of GCP mechanized screw screens is presented. The process line consists of several wastewater treatment stages including mechanical (removal of coarse litter and sand), biological (removal of organics and nutrients), and several stages of tertiary treatment, sedimentation and filtration. At the final stage of the process line the effluent is UV disinfected and discharged into the Tsna River. Commissioning the newly built wastewater treatment facilities provided for improving the living conditions for the residents, the ecological state of the Tsna River which is the main waterway in the Tambov Area, and the safety and quality of the beaches in the city of Tambov.
Key words
sedimentation tank , wastewater , nitrification , aeration tank , sewerage treatment facilities , screw mechanized screen , gravity grit chamber
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УДК 628.316.6:628.166
DOI 10.35776/VST.2024.04.01
Pokhil Yu. N., Novoshintsev V. N., Kostyuchenko S. V., Volkov Sergei, Tkachev Andrei
Комплексное решение проблем обеззараживания природных и сточных вод в современных условиях в масштабах г. Новосибирска
Аннотация
Рассматриваются основные аспекты практического применения технологических решений в сфере обеззараживания природных и сточных вод, позволяющих обеспечить современные нормативные и законодательные санитарно-эпидемиологические требования, на примере МУП г. Новосибирска «ГОРВОДОКАНАЛ». В системе водопровода и канализации г. Новосибирска создан один из крупнейших в России комплексов обеззараживания природных и сточных вод с применением УФ-излучения общей производительностью 1 650 000 м3/сут. В системе водоснабжения города внедрена современная мультибарьерная технология, предусматривающая комбинированное применение УФ-излучения и хлорирования, позволяющая создать надежный барьер в отношении всех типов вирусов, в том числе вируса COVID-19 (SARS-CoV-2), и цист патогенных простейших. В результате применения УФ-обеззараживания питьевой и сточной воды обеспечивается соблюдение новых санитарных правил и норм СанПиН 1.2.3685-21 «Гигиенические нормативы и требования к обеспечению безопасности и (или) безвредности для человека факторов среды обитания». Обеззараживание сточных вод на городских очистных сооружениях канализации г. Новосибирска УФ-излучением полностью удовлетворяет требованиям по применению наилучших доступных технологий, сформулированных в Информационно-техническом справочнике ИТС 10-2019 «Очистка сточных вод с использованием централизованных систем водоотведения поселений, городских округов». На УФ-станциях применено УФ-оборудование отечественного производства на основе современных мощных амальгамных ламп низкого давления. Комплексное и своевременное применение современной технологии обеззараживания УФ-излучением как при водоподготовке, так при очистке сточных вод на объектах МУП г. Новосибирска «ГОРВОДОКАНАЛ» обеспечило выполнение самых строгих современных требований санитарного и экологического законодательства РФ.
Ключевые слова
potable water , disinfection , ultraviolet , wastewater , best available techniques , multi-barrier technologies
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