DOI 000000
UDC 628.22
Vereshchagina Lidiia, Gromov Grigorii, Ten A. E., Khudiakova Dar’ia
Analysis of foreign and domestic approaches to the hydraulic calculation of gravity storm sewer networks
Summary
In accordance with the requirements approved by the Decree of the RF Government of September 5, 2013 No. 782 «On the development of water supply and wastewater disposal schemes» (as amended on May 22, 2020), projects of the developed water supply and wastewater disposal schemes for settlements and urban districts of the Russian Federation with a population of 150 thousand people and more must include an electronic model. At the same time, the software used for the electronic model must ensure the performance of hydraulic calculations, including rainwater (storm) sewer networks operating in gravity and pressure modes. Analysis of literature data and official websites of software manufacturers show that at present in Russia no domestic software for calculating gravity storm sewer networks that meet the requirements of the current regulatory document – SP 32.13330.2018 «SNiP 2.04.03-85. Sewerage. External networks and structures» that regulates the design of wastewater systems for settlements, urban districts is available. Foreign companies working in the Russian market have certain experience in this area. In this regard, the possibilities of software products of various companies have been studied that provide for the electronic models allowing to perform hydraulic calculations and design gravity systems for the surface runoff disposal. The authors have analyzed European regulatory documents, including BS EN 752: 2017, and also performed verification calculations in terms of determining the flow rates of surface (rain) runoff. The results show that the use or adaptation of foreign software products to the design environment in Russia is not possible because of their inconsistency with the applied design dependencies and the requirements of the current regulatory documents of the Russian Federation.
Key words
hydraulic design , surface runoff , storm sewer , gravity wastewater disposal system , surface runoff hydrograph
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DOI 10.35776/MNP.2019.08.06
UDC 628.22
Vereshchagina Lidiia, Ten A. E., Gromov Grigorii, Khudiakova Dar’ia
Method of hydraulic calculation of the innovative designs
of surface runoff disposal
Summary
The method of hydraulic calculation of open canals of the surface runoff drainage system ACO Qmax is presented. The canals are designed to collect and drain surface (rain, snowmelt and street flush water) runoff from urban areas of various functional purposes: parking lots, warehouse complexes, shopping centers, transport terminals, highways, service area facilities, industrial areas with heavy traffic, marine and river terminals, airfields, sports facilities, local park and other areas where the use of open drainage systems is allowed. The method was developed by the experts of MosvodokanalNIIproject JSC taking into account the legislative, regulatory and procedural documents of the Russian Federation governing the design of systems for the removal and treatment of surface runoff from the territory of settlements. The method is based on the results of experimental studies on determining the hydraulic characteristics of canals of the ACO Qmax drainage system that are a sort of open systems and are widely used in the EU countries for land improvements.
Key words
hydraulic design , surface runoff , storm sewer , procedural guidelines , open disposal system АСО Qmax
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DOI 10.35776/MNP.2020.06.02
UDC 628.2/.4:006.3:349.6
Vereshchagina Lidiia
On the need for revising the Code of Practice CP 32.13330.2018 «Sewerage. Pipelines and wastewater treatment plants» regarding the design of systems for the disposal and treatment of surface runoff from settlements
Summary
The regulatory framework for the design of systems for the disposal and treatment of surface runoff from the territory of settlements and industrial sites is discussed, in particular, the practice of applying the Code of Practice CP 32.13330.2018 «Sewerage. Pipelines and wastewater treatment plants. SNiP 2.04.03-85», enforced by the order of the RF Ministry of Construction of June 26, 2019. Structural changes of the regulatory document are considered, as well as the most common problems that design organizations and the state authorities of project expertise have to face while applying separate provisions in designing engineering structures for disposal and treatment of surface runoff from settlements. A list of the main paragraphs of CP 32.13330.2018 that require revision with the respective comments is presented.
Key words
treatment facilities , surface runoff , storm sewer , hydraulic calculation of networks , separation chamber , intermediate storage tank
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bbk 000000
UDC 628.212.2.001.2
Vereshchagina Lidiia, Menshutin Iurii, SHVETSOV V. N.
The experience of using «Recommendations on designing the systems of collection, disposal and treatment of surface runoff from territories allotted for settlement and industrial sites, and on determining the conditions of its discharge into water bodies»
Summary
The experience of using «Recommendations on designing the systems of collection, disposal and treatment of surface runoff from territories allotted for settlement and industrial sites, and on determining the conditions of its discharge into water bodies» developed at NII VODGEO Federal State Unitary Enterprise in substitution of previous «Temporary recommendations on designing facilities for processing surface runoff from industrial sites and determining the conditions of its discharge into water bodies» is considered. The high demand for the developed document by the experts in the process of designing and approving project documents on construction and upgrade of engineering structures of storm sewers is noted. The use of advanced methods of calculating surface runoff amount and flow rate provides for minimizing the capacity of the treatment facilities at guaranteed meeting the requirements of the regulations on the conditions of disposal and quality of surface runoff effluents. The list of priority water quality parameters to be guided when choosing a treatment process flow scheme is presented. The basic technical solutions of surface runoff collection, disposal and treatment are formulated. The principle of wastewater flow separation and accumulation is suggested together with the technologies of its engineering implementation that provide for reasonably reducing the investments for the construction of treatment facilities under the existing environmental legislation and design regulatory framework. The need for updating the section on the recommendations on determining the conditions of surface runoff disposal into water bodies that was developed following the amendments to the RF Water Code and enactment of the new regulatory and procedural documents related to developing the regulations on permissible impact on water bodies and permissible discharges for water uses is noted.
Key words
surface runoff , storm sewer , runoff disposal and treatment , environmental legislation , permissible discharge norm
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