magistrsko delo
Tanja Valcl Fifer (Author), Jože Panjan (Mentor), Mitja Brilly (Thesis defence commission member), Darko Drev (Thesis defence commission member), Andreja Žgajnar Gotvajn (Thesis defence commission member)

Abstract

Magistrsko delo temelji na izvedenih meritvah vsebnosti suspendiranih snovi, kemijske potrebe po kisiku (KPK) in pretokov na testirani napravi za globinsko filtracijo s tkanino »Mini filter 1« na CČN Domžale - Kamnik. Meritve so se izvajale v času od 3. 7. 2012 – 20. 9. 2012 enkrat dnevno od ponedeljka do petka na sami testirani filtrirni napravi. Izvajale so se meritve pretokov in odčitavanje višin nivojev vode v komorah filtrirne naprave ter odčitavanje vsebnosti celokupnih suspendiranih snovi (TSS) na kontinuirani meritvi na iztoku iz naknadnega usedalnika. Meritve parametrov TSS in KPK so se izvajale v laboratoriju. Po 17. 8. 2012 se je preizkušanje testirane filtracijske naprave nadgradilo z vključitvijo simulacije povečane obremenitve s TSS na dotoku v napravo. Od tega dne se je obremenitev s TSS na dotoku v testirano napravo »Mini filter 1« postopoma povečevala. Namen simulacije je bil, da se doseže točka obremenitve s TSS, pri kateri bo filtrirna naprava s tkanino »Mini filter 1« neprestano v postopku čiščenja oz. odstranjevanja zajetih trdnih delcev iz filtrirne tkanine. Ta točka se v času preizkusov ni dosegla. Dosežen pa je bil minimalen čas med spiranji, ki je bil pod dvema minutama. Naprava je torej bila ponovno pripravljena za postopek čiščenja, v času krajšem od 2 minut. Postopek čiščenja tkanine pri tem ni vplival na filtracijski proces dotočne vode. Magistrsko delo vključuje tudi teoretične osnove filtracije in primerjavo različnih vrst tehnologij filtracije, tako površinskih (2D) kot globinskih (3D) opravljenih na podlagi meritev števila delcev, ki vstopajo in zapuščajo filter, ter njihove velikosti. V zadnjem delu naloga vključuje primer vključitve globinske filtracije na projektu nadgradnje CČN Ljubljana, kjer so prikazane variante nadgradnje CČN Ljubljana in postopek dimenzioniranja globinske filtracije s tkanino pri različnih projektnih podatkih pretoka na nivoju idejnega projekta.

Keywords

gradbeništvo;magistrska dela;globinska filtracija;filtracija 3D;filtracija 2D;odpadne vode;suspendirane snovi;KPK;

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UL FGG - Faculty of Civil and Geodetic Engineering
Publisher: [T. Valcl Fifer]
UDC: 628.179.2(043.2)
COBISS: 7310689 Link will open in a new window
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Downloads: 473
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Other data

Secondary language: English
Secondary title: Cloth filtration on the waste water treatment systems
Secondary abstract: The master's thesis is based on the executed measurements of suspended solid contents, COD contents and flows on the tested depth-cloth filtration device Mini filter 1 on WWTP Domžale-Kamnik. The measurements were carried out in the period from 03.07.2012 – 20.9.2012 once a day from Monday till Friday on the tested filtration device and namely flow measurements and reading of heights in the filtration device chambers and reading of suspended solid contents (TSS) on the continuous measurement on the outflow from the secondary clarifier. Measuring of parameters TSS and COD was carried out in the laboratory. After 17th of August 2012, the testing of tested filtration device was upgraded by including the simulation of increased load with TSS on the inflow into the device. From that day on, the load with TSS on the inflow into the tested device Mini filter 1 was gradually increased. The purpose of simulation was to reach the load point with TSS where the cloth filtration device Mini filter 1 will be constantly in the procedure of cleaning or removing the captured solid particles from the filtration cloth. This point wasn't reached. Yet a minimum time during rinsing under 2 minutes was achieved. Meaning, that the device was once again in the state of cleaning less than 2 minutes. The cleaning procedure didn't affect the filtration process of inflow water.
Secondary keywords: civil engineering;master of science thesis;cloth filtration;filtration;3D filtration;2D filtration;waste water;suspended solid;
File type: application/pdf
Type (COBISS): Master's thesis
Thesis comment: Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Pages: XVI, 89 str., [10] str. pril.
ID: 9078042