Temat: roof runoff - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Assessment of Trace Metals Leaching During Rainfall Events from Building Rooftops with Different Types of Coverage – Case Study
Autorzy:: Nawrot, N.
Wojciechowska, E.
Powiązania:: https://bibliotekanauki.pl/articles/124497.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: trace metals
roof materials
precipitation
roof runoff
Opis:: Runoff water is an important medium transporting various types of pollution originating from the atmosphere and washed out from roofing materials. The study presents a quality assessment of runoff from different roofs in the context of trace metal concentrations. The analysed rooftops were covered with copper, tar paper and ceramic tile. The quality of the rain water collected at the same time satisfies the demands of the first grade of cleanliness according to (Journal of Laws, 2016 item1187). The highest content of copper was leached from the copper roof, containing 10.23 mg∙dm^-3. In the case of zinc, the highest concentration of 15.52 mg∙dm^-3 was present in the runoff from the roof covered with thermally bonded tar paper. The amount of trace metals in the ceramic roof runoff was the lowest and only for zinc slightly exceeded 1.47 mg∙dm^-3 – the value determined for II class of purity. In the paper, the different levels of heavy metals leaching from different roofing materials have been confirmed.
Źródło:: Journal of Ecological Engineering; 2018, 19, 3; 45-51
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Water retention on the extensive green roof models
Autorzy:: Baryła, A.
Karczmarczyk, A.
Wróbel, M.
Kożuchowski, P.
Powiązania:: https://bibliotekanauki.pl/articles/100983.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:: green roof
water retention
runoff delay
Opis:: One of the main problems of urbanization is the continuous growth of sealed surfaces. Impermeable surfaces i.e. roofs, roads or pavements have dominated land cover, increasing surface runoff and limiting groundwater runoff, often contributing to increased flood risk. The practice of many countries has shown that green roofs are one of the solutions to the problem of rainwaters on the urban areas. The aim of the study was to assess the retention ability of three green roofs of extensive type with different substrate composition (two mineral-organic mixtures, one mineral mixture). The research was carried out at the Water Centre of the Warsaw University of Life Sciences in Warsaw (Ursynów district) in the period from June to November in 2016. The obtained results were compared with observation of the reference model – bituminous roof. Model studies have shown that green roofs retained water in the range from 9.5 mm to 67.1 mm. The average runoff coefficients for green roof types in the period from June to November in 2016 were from 0.31 to 0.33. The obtained results showed slight differences in outflows with different substrates. During high rainfall, the differences in the runoff between the green roofs and the reference roof were negligible.
Źródło:: Infrastruktura i Ekologia Terenów Wiejskich; 2017, IV/2; 1649-1658
1732-5587
Pojawia się w:: Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Role of Substrates Used for Green Roofs in Limiting Rainwater Runoff
Autorzy:: Baryła, A.
Karczmarczyk, A.
Bus, A.
Powiązania:: https://bibliotekanauki.pl/articles/124027.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: green roof
substrates
runoff
retention
moisture
Opis:: The retention of rainwater is one of the main functions of green roofs in urban areas. One of the elements influencing the variability of rainwater retention on green roofs is the configuration of the roof, i.e. the combination of drainage and vegetation layers and plants. In the article, laboratory studies regarding the influence of the vegetation layer of the green roof on the retention of rainwater were carried out, and the influence of changes in the initial moisture content in extensive and intensive substrates on retention were compared. The analysis of seven randomly selected substrates showed that the runoff coefficients range from 0.59 to 0.71. In the case of the retention, statistically significant differences were observed in terms of the rainfall volume as well as the initial moisture content.
Źródło:: Journal of Ecological Engineering; 2018, 19, 5; 86-92
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Green roof impact on the quantity and quality of stormwater discharged from urban areas
Autorzy:: Sakson, Grażyna
Powiązania:: https://bibliotekanauki.pl/articles/27312650.pdf
Data publikacji:: 2023
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: green roof
sewerage modelling
stormwater management
stormwater runoff quality
urban drainage
Opis:: Green roofs are increasingly popular in both new and modernised buildings. They significantly reduce the outflow of stormwater from buildings and change its composition. Wherever an urbanised area is equipped with a separate sewage system, usually stormwater goes directly to the receiver without treatment, which may affect the quality of water in the receiver. The article presents results of research carried out on the green roof of a building in Lodz, Poland. During rainfall, the flow rate from the roof was measured. With the use of the US EPA software Stormwater Management Model (SWMM) a model of the green roof was created and calibrated using rainfall data from the city’s pluviometric network. Based on the measurements of the roof runoff, as well as SWMM modelling, the degree of outfall reduction was determined. Samples of roof runoff were collected to study the characteristics of rainwater, including pH, electrical conductivity, organic compounds, nitrogen, phosphorus, and suspended solids. The results were compared with the quality of runoff from a traditional roof. Except ammonium nitrogen, values of the examined quality indicators was higher in the case of the green roof but the pollution load of almost all contaminants, except phosphorus, were lower due to a significant reduction in the volume of stormwater outflow (62-91%). The quality of stormwater discharged from the green roof improved with its age.
Źródło:: Journal of Water and Land Development; 2023, 57; 91--97
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Role of drainage layer on green roofs in limiting the runoff of rainwater from urbanized areas
Rola warstwy drenażowej na zielonych dachach w ograniczaniu odpływu wód opadowych z terenów zurbanizowanych
Autorzy:: Baryła, Anna M.
Powiązania:: https://bibliotekanauki.pl/articles/293275.pdf
Data publikacji:: 2019
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: drainage layer
green roof
retention
runoff
substrates
odpływ
retencja
warstwa drenażowa
zielony dach
Opis:: Green roofs play a significant role in sustainable drainage systems. They form absorbent surfaces for rainwater, which they retain with the aid of profile and plants. Such roofs therefore take an active part in improving the climatic conditions of a city and, more broadly, the water balance of urbanized areas. One of the factors influencing the hydrological efficiency of green roofs is the drainage layer. In the article, column studies were carried out under field conditions involving the comparison of the retention abilities of two aggregates serving as the drainage layer of green roofs, i.e. Leca® and quartzite grit. The average retention of the substrate was 48%; for a 5 cm drainage layer of Leca® retention was 57%, for a 10 cm layer of Leca average retention was 61%. For a 5 cm layer of quartzite grit average retention was 50%, for 10 cm layer of quartzite grit 53%. The highest retention was obtained for the column with the substrate and 10-centimeter layer of Leca®. At the same time, it was shown that Leca® is a better retention material than quartzite grit. The initial state of substrate moisture content from a green roof appears to be a significant factor in reducing rainfall runoff from a green roof; the obtained values of initial moisture content made for a higher correlation than the antecedent dry weather period.
Istotną rolę w zrównoważonych systemach drenażu odgrywają zielone dachy. Są powierzchniami chłonnymi w odniesieniu do wód opadowych, które retencjonują w profilu i za pomocą roślin. Biorą zatem czynny udział w poprawie warunków klimatycznych miasta, a szerzej bilansu wodnego terenów zurbanizowanych. Jednym z czynników wpływających na wydajność hydrologiczną zielonych dachów jest warstwa drenażowa. W artykule przedstawiono wyniki badań kolumnowych przeprowadzonych w warunkach polowych, w których porównano retencyjność dwóch kruszyw wykorzystywanych jako warstwa drenażowa na zielonych dachach – keramzytu i grysu kwarcytowego. Średnia retencja substratu wyniosła wyniosła 48%, dla 5 cm warstwy drenażowej z Leca® wyniosła 57%, dla warstwy 10 cm średnia retencja wyniosła 61%. Dla grysu kwarcytowego średnia retencja wyniosła dla 5 cm warstwy drenażowej 50%, dla 10 cm warstwy drenażowej 53%. Największą retencję uzyskano w kolumnie z substratem i 10-centymetrową warstwą keramzytu. Wykazano, że keramzyt jest lepszym materiałem retencyjnym niż grys kwarcytowy. Początkowy stan wilgotności podłoża z zielonego dachu wydaje się być istotnym czynnikiem w redukcji odpływu wód opadowych z dachu zielonego. Uzyskane wyniki wilgotności początkowej dały silniejszą korelację niż czas pomiędzy opadami.
Źródło:: Journal of Water and Land Development; 2019, 41; 12-18
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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