Ocena masnih obremenitev onesnaženih padavinskih in rečnih voda zbiralnika A6 v Ljubljani

Povzetek

Ključne besede

Podatki

Jezik:	Slovenski jezik
Leto izida:	2010
Izvor:	Ljubljana
Tipologija:	2.11 - Diplomsko delo
Organizacija:	UL FGG - Fakulteta za gradbeništvo in geodezijo
Založnik:	[T. Kuclar]
UDK:	628.19:628.2(043.2)
COBISS:	5225569
Št. ogledov:	1706
Št. prenosov:	476
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Angleški jezik
Sekundarni naslov:	Estimation of the burdening of collector A6 in Ljubljana by polluted precipitation waste waters and river waters
Sekundarni povzetek:	In this thesis we presented the calculation of mass balance of the materials in suspension, total phosphorus, total nitrogen, COD and BOD5 within sewage collector A6 in the area of Hajdrihova street No. 28 and behind the outfall from the stormwater overflow under the bridge at Riharjeva street in Ljubljana. The pollutant concentration was acquired on the basis of measurements which were carried out during the time period between the years 2004 and 2009, and it presents the basic data for conversion of mass balance at the above mentioned sample sites. The catchment area of sewage collector A6 is expressly urbanised. During precipitation events, on the urbanised areas, due to impervious areas the precipitation waters are drained through the secondary sewage systems which are connected to the main collector. Rainwater run-off from the road surfaces, which is heavily polluted with hard particles and other pollutants due to tire wear, vehicle breaking, road surface wear and other sorts of dirt caused by the drivers, represents a considerable burden to the sewage system. This is valid mostly for the rainwater run-off after a longer period of drought. Due to high rates of discharge during the precipitations, and owing to economic reasons, the stormwater overflows have been installed. These stormwater overflows disburden the surplus of waste waters and rainfall waters into the water drainage system, which can destroy natural ecosystem and increase its eutrophication. This thesis presents a more detailed description of the first flush of precipitation event, sewage collector A6, riverbasin of the river Gradaščica and the German standard ATV-A 128E. In the calculation part of this thesis there follows the calculation of hydraulic burdening of sewage collector A6 with the SWMM 5 model, and the calculation of mass balance for particular pollutants, both in sewage collector and river. The fact is that stormwater overflows protect the river insuficiently. Therefore, the Municipality of Ljubljana made the strategic spatial plan, where one of the targets is to make the river of Ljubljanica a river suitable for bathing again. So, we have envisaged the installation of five stormwater tanks and made the calculation of the necessary basin volumes based on the German standard ATV-A 128E.
Sekundarne ključne besede:	sewage collector A6;the river Mestna Gradaščica;sewage system;waste water;rainwater run-off;first flush;SWMM 5 model;stormwater tank;stormwater overflow;
Vrsta datoteke:	application/pdf
Vrsta dela (COBISS):	Diplomsko delo
Komentar na gradivo:	Univ. Ljubljana, Fakulteta za gradbeništvo in geodezijo
Strani:	XIII, 85 str., pril.
Vrsta dela (ePrints):	thesis
Naslov (ePrints):	Estimation of the burdening of collector A6 in Ljubljana by the polluted precipitation, waste waters, and river waters
Ključne besede (ePrints):	kanalizacijski zbiralnik A6;Mestna Gradaščica;kanalizacija;padavinski odtok;odtok odpadne vode;prvi val;program SWMM 5;razbremenilniki;zadrževalniki
Ključne besede (ePrints, sekundarni jezik):	sewage collector A6;the river Mestna Gradaščica;sewage system;waste water;rainwater run-off;first flush;SWMM 5 model;stormwater tank;stormwater overflow
Povzetek (ePrints):	V diplomski nalogi, je predstavljen izračun masne bilance suspendiranih snovi, skupnega fosforja, skupnega dušika, KPK in BPK5, v kanalizacijskem zbiralniku A6 na območju Hajdrihove ulice 28 ter odvodnika, Mestna Gradaščica, pri stavbi na Hajdrihovi ulici 28 in za iztokom iz razbremenilnika pod mostom na Riharjevi cesti v Ljubljani. Koncentracija onesnažil je bila pridobljena na osnovi meritev, ki so se izvajale med leti 2004 in 2009 ter predstavlja izhodiščni podatek za preračun masne bilance na zgoraj omenjenih vzorčnih mestih. Prispevno področje kanalizacijskega zbiralnika A6 je izrazito urbanizirano. Na urbaniziranih površinah pa se ob padavinskih dogodkih, zaradi nepropustnosti površin, dogodi odtok padavinske vode, ki se odvodnjava preko sekundarne kanalizacije, le-ta pa je priključena na glavni zbiralnik. Odtok padavinske vode s cestišč, ki je zaradi obrabe pnevmatik in zavor vozil, obrabe vozišča ter nesnage voznikov, onesnažen s trdimi delci in ostalimi onesnažili, predstavlja za kanalski sistem znatno obremenitev. Predvsem to velja za odtok padavinske vode, po daljšem sušnem obdobju. Zaradi velikih pretokov v kanalu, v času padavin, so zaradi ekonomskega razloga, na mešanem kanalskem sistemu nameščeni razbremenilni objekti, ki razbremenijo višek odpadne in padavinske vode v odvodnik, kar pa lahko poruši naravni ekosistem in poveča evtrofikacijo le-tega. V diplomskem delu je natančneje predstavljen prvi val padavinskega dogodka, kanalizacijski zbiralnik A6, porečje Gradaščice ter nemški standard ATV-A 128E. V računskem delu diplomske naloge, pa sledi izračun hidravlične obremenitve kanalskega zbiralnika A6, s programom SWMM 5 ter izračun masne bilance za posamezna onesnažila, v kanalskem zbiralniku ter odvodniku. Ker razbremenilni objekti premalo varujejo odvodnik, po Strateško prostorskem načrtu Mestne občine Ljubljana, pa je eden izmed ciljev, da bo Ljubljanica zopet kopalna reka, smo predvideli postavitev petih zadrževalnih bazenov in izvedli izračun potrebnih volumnov le-teh na podlagi nemškega standarda ATV-A 128E.
Povzetek (ePrints, sekundarni jezik):	In this thesis we presented the calculation of mass balance of the materials in suspension, total phosphorus, total nitrogen, COD and BOD5 within sewage collector A6 in the area of Hajdrihova street No. 28 and behind the outfall from the stormwater overflow under the bridge at Riharjeva street in Ljubljana. The pollutant concentration was acquired on the basis of measurements which were carried out during the time period between the years 2004 and 2009, and it presents the basic data for conversion of mass balance at the above mentioned sample sites. The catchment area of sewage collector A6 is expressly urbanised. During precipitation events, on the urbanised areas, due to impervious areas the precipitation waters are drained through the secondary sewage systems which are connected to the main collector. Rainwater run-off from the road surfaces, which is heavily polluted with hard particles and other pollutants due to tire wear, vehicle breaking, road surface wear and other sorts of dirt caused by the drivers, represents a considerable burden to the sewage system. This is valid mostly for the rainwater run-off after a longer period of drought. Due to high rates of discharge during the precipitations, and owing to economic reasons, the stormwater overflows have been installed. These stormwater overflows disburden the surplus of waste waters and rainfall waters into the water drainage system, which can destroy natural ecosystem and increase its eutrophication. This thesis presents a more detailed description of the first flush of precipitation event, sewage collector A6, riverbasin of the river Gradaščica and the German standard ATV-A 128E. In the calculation part of this thesis there follows the calculation of hydraulic burdening of sewage collector A6 with the SWMM 5 model, and the calculation of mass balance for particular pollutants, both in sewage collector and river. The fact is that stormwater overflows protect the river insuficiently. Therefore, the Municipality of Ljubljana made the strategic spatial plan, where one of the targets is to make the river of Ljubljanica a river suitable for bathing again. So, we have envisaged the installation of five stormwater tanks and made the calculation of the necessary basin volumes based on the German standard ATV-A 128E.
Ključne besede (ePrints, sekundarni jezik):	sewage collector A6;the river Mestna Gradaščica;sewage system;waste water;rainwater run-off;first flush;SWMM 5 model;stormwater tank;stormwater overflow
ID:	8309668