DOI 10.35776/VST.2022.08.01
UDC 628.2:006.3
Primin Oleg
New CP 517.1325800.2022 «Operation of the public water supply and wastewater disposal systems, structures»
Summary
The information on the new Code of Practice CP 517.1325800.2022 «Operation of the public water supply and wastewater disposal systems, structures» is presented. The development of the Code of Practice was carried out by the order of the Ministry of Construction of the Russian Federation as part of the national project «Housing and urban environment» up to the year 2024 in terms of providing for the improvement of the technical regulation system for updating the acting regulatory and technical documents for retrofitting advanced technologies and establishing restrictions on the use of obsolete technologies in design, construction and operation. The purpose of developing a new Code of Practice has been as follows: compiling a single document of the federal level that establishes the recommendations and industry regulatory requirements for all the basic stages of operating public systems and facilities for water supply and wastewater disposal; establishing comprehensive requirements that guarantee the adoption of the most effective and safe technical solutions based on the generalized experience in the design and operation of public water supply and wastewater disposal systems; accounting for the provisions put into force in the period 2019–2021 of the regulatory documents for the water industry; accounting for the results of scientific research. The Code of Practice reflects the current features of the operation of public systems and structures for water supply and wastewater disposal, taking into account the innovative methods and technologies for their repair, maintenance and reconstruction.
Key words
water supply , water disposal , maintenance , set of rules , regulatory requirements , structures
|
bbk 000000
УДК 628.17.001.4
Primin Oleg, Aliferenkov A. D., Otstavnov A. A.
Regulatory support of ductile iron pipe use in Russia
Summary
The integrity and environmental safety are among basic requirements imposed to the municipal water and wastewater systems. An appropriate choice of pipe material is of primary importance for ensuring water transportation pipeline integrity. For many years steel and cast iron have been the main pipe materials used in public water supply in Russia. Lately ductile iron pipes widely used overseas and in Russia, in the Moscow water supply system, in particular, have been competing with steel (metal) pipes. The wider use of ductile iron pipes in drinking water supply until recently was restrained by the lack of the proper regulatory framework, including general lack of instructions on the use of ductile iron pipes in Construction Rules 31.13330.2012 «Water supply. Public utilities» (Revised edition of Construction rules and regulations 2.04.02-84*). The information on these pipes and on the introduction of amendments to Construction Rules 31.13330.2012 related to the use in water supply systems, and also amendments to Construction Rules 66.13330.2011 «Design, construction pressure water pipelines and sewers with the use ductile iron pipes» in relation to their use in soft and subsiding soil is presented. The amendments were approved by the Ministry of Housing and Construction of Russia and put into force on April 30, 2015.
Key words
reliability , strength , pipeline , water and wastewater systems , ductile iron , set of rules
|
DOI 10.35776/MNP.2020.03.05
UDC 696.11
Strelkov A. K., Zotov Yu. N., Mikhailova I. I.
On improving Code of Rules (CR) 30.13330.2016 «Water supply and drains of buildings. Revised edition of SNiP 2.04.01-85*» (for the discussion)
Summary
The article is explaining the amendments to Code of Rules (CR) 30.13330.2016 «Water supply and drains of buildings. Revised edition of SNiP 2.04.01-85*». The results of the analysis of the interconnections of the system of technical regulation in construction business and the system of regulating the provision of public services are presented. In order to create a legitimate methodological toolkit, the experts of the Academy of Civil Engineering and Architecture, Samara State Technical University developed amendments to CR 30.13330.2016 that will clarify the content of the regulatory document and specify certain elements of the design and calculation of the internal water supply systems of an apartment building. The methodology of designing drinking water supply systems for apartment buildings is considered. Methodological procedures and their practical implementation in the design of internal drinking water supply systems of an apartment building are given.
Key words
hydraulic design , plumbing system , tenement building , set of rules
|
DOI 10.35776/VST.2022.01.03
UDC 006.3:699.814
Boldyrev Vladimir Vasil'evich, Kozhenov Iurii, Kirilenko Viktor
Experience of using СP 10.13130.2020 in designing internal fire-fighting water lines for buildings
Summary
Proposals are given for adjusting CP 10.13130.2020 «Fire protection systems. Internal fire-fighting water lines. Design rules and regulations» with account of the experience of designing internal water supply systems for buildings and structures. The need for adjustments is due to the following reasons: the use of new terms in the text of the code of practice instead of the historically established and currently used in other regulatory documents; the presence of erroneous recommendations; the lack of the correct information on the initial pressure value as well as on the type of the diaphragm being calculated with the use of a nomograph (with sharp or thickened edges); the lack of the information on the mutual influence of the valve and the diaphragm being taken into account. It is proposed to replace the new terms included in the code of practice with already known ones (a list of such terms with recommendations for their replacement is given) so that the new terms do not conflict with other regulatory documents. It is proposed to eliminate erroneous recommendations regarding the use of elevated and hydropneumatics water tanks as a means of increasing pressure in the internal fire-fighting water line. It is concluded that engineering calculations based on the nomograph provide for the sufficient accuracy for almost all types of diaphragms 3–4 mm thick. An exception is the diaphragm installed at the outlet of the direct-flow fire valve. For this diaphragm the relative deviation of the results of applying the nomograph and methods known from hydraulics is more than 25% due to the mutual influence of the local resistances.
Key words
set of rules , terminology , terms , internal fire water pipeline , design rules and regulations , medium-flow fire hydrant , diaphragm calculation , nomograph
|
UDC 628.2/.4:006.3:349.6
DOI 10.35776/VST.2023.02.02
Danilovich Dmitrii, Frog Dmitrii
The main innovations introduced by Amendment No. 2 to the Code of Practice CP 32.13330.2018 «Sewerage. Pipelines and Wastewater Treatment Plants»
Summary
The main prerequisites for the development of Amendment No. 2 to CP 32.13330.2018, and the tasks facing this work are described. The main innovations introduced by Amendment No. 2 are considered. The principles of synchronization of the system of engineering regulation of wastewater treatment processes with environmental regulation of discharges; clarification of the provisions for determining the estimated wastewater inflows; additions to the subsection on drain stations are described. The main additions and clarifications in terms of wastewater and sludge treatment technologies are described and justified (Chapter 9 of the Code of Practice), namely: updated requirements for intrahour safety factors while calculating channels and flumes; supplemented requirements for reliability in the design of channels of bar screen buildings and the data for calculating the amount of screenings depending on bar spacing; specified conditions for the use of sewage regulators; requirements for the calculation of primary settling tanks, aeration tanks, secondary settling tanks; recommendations for the removal of phosphorus; requirements for the redundancy of sludge dewatering equipment in case of the lack of spare sludge beds; introduced formulas for calculating the pollution of primary effluent; recommendations for sludge acidification from primary settling tanks; requirements for the redundancy of submersible electromechanical equipment of aeration tanks and for the regulation of sludge discharge from secondary settling tanks; detailed recommendations on the use of filtration beds for receiving effluents; the limits of applying mandatory dechlorination while using chlorine and the allowability of using prefabricated units.
Key words
treatment facilities , sewerage , screens , phosphorus elimination , set of rules , dechlorination , primary and secondary settling tanks , pipelines and wastewater treatment plants , municipal (mixed) wastewater , estimated inflow , sewage regulators , drain stations , calculations , aeration tanks , equipment redundancy , sludge acidification , filtration beds , prefabricated units
|
UDC 628.2/.3:006.057
DOI 10.35776/VST.2024.02.03
Danilovich Dmitrii, Frog Dmitrii, Vereshchagina Lidiia
The main revisions proposed in Amendment No. 3 to CP 32.13330.2018 «Sewerage. External networks and structures»
Summary
The main revisions CP 32.13330.2018 «Sewerage. External networks and structures» proposed in Amendment No. 3, developed by the Research Institute of Building Physics of the Russian Academy of Architecture and Construction Sciences in 2023 are described. The following concepts were introduced: basic technical solutions and requirements for their development, industrial storm sewer systems at industrial enterprises and requirements for their design. The requirements to the existing wastewater disposal systems have been clarified. The revised and extended requirements have been established for the use of one- and two-stage wastewater screening, acidification of primary sludge, biological wastewater treatment methods, UV disinfection of effluents, stabilization and disinfection of wastewater sludge, thermal drying and thermal utilization of sludge. Requirements to the disposal of wastewater sludge have been simplified.
Key words
disinfection , wastewater treatment , sewerage , water disposal , set of rules , sludge treatment , pollutants , estimated flow
|
UDC 628.2/.4:006.3
DOI 10.35776/VST.2023.03.04
Danilovich Dmitrii
Obtaining design data for the calculation of wastewater treatment facilities for communities in accordance with Amendment No. 2 of CP 32.13330.2018
Summary
The main innovations introduced by Amendment No. 2 to CP 32.13330.2018 «Sewerage. Pipelines and Wastewater Treatment Plants» with regard to obtaining design data for calculating wastewater treatment facilities for communities are considered. The main content of the new D Appendix as part of this Code of Practice, dedicated to this issue, is outlined, where the instructions are differentiated on obtaining design data for calculations provided the primary design data is sufficient, or insufficient. In particular, the specified requirements for taking into account predicted changes in the drainage sewer territory, determining the daily and hourly coefficients of unevenness, and determining the calculated concentrations of pollutants are described.
Key words
treatment facilities , sewerage , set of rules , pipelines and wastewater treatment plants , municipal (mixed) wastewater , municipal (mixed) wastewater , verification , relevant data , wastewater inflow , loadings , pollution concentrations , wastewater temperature
|
bbk 000000
UDC 628.16:349.6
ALEKSEEV V. S.
The current state of the water regulatory framework
Summary
The legal and regulatory framework of designing, building and operating water supply systems with surface and underground water abstraction (resource block), technical process solutions and equipment, development of sanitary requirements to the quality of water sources and of water supplied to the population, rules of operating water supply systems are considered. The development of the water legislation in the country is related to the introduction into force of the RF Water Code in 2006 and amendments to it. The use of underground waters is regulated by the Federal Law «On subsurface resources», «Classification of reserves and predicted resources of drinking, process and mineral underground waters» and by guidelines on its application. The drawbacks of the existing documents related to finding ground waters in natural conditions that meet the requirements of sanitary authorities to the drinking water are noted. The analysis of the formation of the regulatory framework of technologies shows that there are progressive trends related to the adoption of 416-ФЗ Federal Law «On water supply and wastewater disposal». At the same time it is shown that updating SNiP 2.04.02-84 in the form of 31.13330 Set of Rules has a number of drawbacks. When considering the sanitary safety of water sources the necessity of early adopting public health regulations related to water supply source selection (replacing GOST 2761-84), revising SanPiN 2.1.4.1110-02, developing legitimate recommendations on hydrogeologic methods of estimating the dimensions of sanitary protection zones, and developing the mechanism of adjustment of maximum permissible concentrations of components regulated by SanPiN 1.2.4.74-01 harmonized with WHO requirements is pointed out. It is shown that the robustness of water supply systems is ensured by the motivated selection of water supply sources and designs of water intakes, systems of water purification, supply and distribution. At the same time it is necessary to carry out process studies of remediation of water resources with account of the RF state standards of ISO 9000 and ISO 14000 series.
Key words
water supply system , regulatory framework , Building Code , set of rules , public health regulations , operating rules and regulations
|
|
