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Wyszukujesz frazę "stormwater system" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Możliwości ograniczenia wpływu ścieków deszczowych odprowadzanych z obszarów zurbanizowanych na jakość wód powierzchniowych w aspekcie uregulowań prawnych
Prospects for reduction of the impact of wastewater discharge from urban areas on surface water quality in view of legal regulations
Autorzy:
Sakson, G.
Brzezińska, A.
Zawilski, M.
Powiązania:
https://bibliotekanauki.pl/articles/236676.pdf
Data publikacji:
2017
Wydawca:
Polskie Zrzeszenie Inżynierów i Techników Sanitarnych
Tematy:
urban wastewater system
combined sewer overflow
stormwater systems
emission of pollutants
surface water protection
legal regulations
modeling
Opis:
Despite full adoption of EU requirements into current legal regulations in Poland, surface waters as sewage receivers in urban areas still cannot be considered fully protected, especially against contamination from sewer overflows and storm water systems. The examples discussed demonstrate that urban wastewater discharged from sewer overflows and storm water systems during rainfalls has a clearly dominant share in the load of pollutants emitted to the receiver. It is therefore important to develop efficient tools of water protection against these contaminants. Uniform but rather limited provisions applicable throughout the country do not take account of specific local conditions, especially size of wastewater receivers and size and characteristics of the catchment area, preventing therefore effective and economically viable water protection. The results of this research, carried out in Lodz, examining pollution loads discharged from the urban catchment area, illustrate that current approach to surface water protection issues requires a revision. Feasibility of regulatory changes in the area of setting requirements for effective receiver protection against pollutants discharged from urban areas was presented, considering the impact of untreated wastewater on the receiving water. It is also necessary to take comprehensive measures both in terms of research on pollutant emissions and their impact on the receiver and the method to utilize the results of such studies. This would enable more widespread use of urban wastewater discharge system modeling, which in turn would enable a reliable assessment of their impact on the receiver and taking appropriate modernization decisions. All of these activities are preconditions for sustainable rainwater management in urban areas.
Źródło:
Ochrona Środowiska; 2017, 39, 2; 27-38
1230-6169
Pojawia się w:
Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Measurement of air-water oxygen transfer of cylindrical vortex flow regulators at a recirculating system
Autorzy:
Wójtowicz, P.
Szlachta, M.
Kotowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/208207.pdf
Data publikacji:
2013
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
hydrodynamics
storms
vortex flow
aeration efficiencies
hydrodynamic flows
oxygen mass transfer
oxygen transfer rate
recirculating system
stormwater systems
sewerage
oxygen
hydrodynamika
burze
wiry
efektywność napowietrzania
przepływy hydrodynamiczne
przenoszenia masy tlenu
szybkość transferu tlenu
system recyrkulacji
systemy deszczowe
kanalizacja
napowietrzanie
Opis:
Hydrodynamic flow regulators are used for diversion and/or limiting excess discharge in wastewater and stormwater systems as a replacement for traditional flow throttling devices. They are highly efficient, reliable and free from common disadvantages of traditional devices. Recent research of the authors indicated that atomization of a liquid by vortex flow regulators accelerates oxygenation and prevents the putrefaction process in wastewater and storm water collection systems. The study presents experimental results of the oxygen transfer measurements for basic designs of cylindrical hydrodynamic flow regulators in a closed-circuit experimental setup at the semi-commercial scale. The oxygen mass transfer coefficient, standard oxygen transfer rate and standard aeration efficiency were determined for the range of tested configurations by the clean water test.
Źródło:
Environment Protection Engineering; 2013, 39, 3; 207-215
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
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