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Predmet raziskave je padavinska odpadna voda z avtocestnega odseka Maribor-Lenart in delovanje dveh zemeljskih bazenov za čiščenje te vode (10a in Dragučova). Vrsta in količina onesnaževal v padavinski vodi časovno in prostorsko niha, kar je odvisno od številnih dejavnikov, ki so med sabo nelinearno povezani: klima, vozišče, promet, raba ta in druge lokalne posebnosti. V Sloveniji še ni izdelane metodologije vzorčenja padavinske vode, prav tako nimamo celostne dolgotrajne študije spremljanja kvalitete te vode. V prvem delu naloge smo zbrali literaturo na temo padavinske odpadne vode, s poudarkom na slovenski. Eksperimentalni del pa predstavlja izbor objektov za čiščenje padavinske vode, primernih za vzorčenje, določitev vzorčenih parametrov, ročno vzorčenje vode na dotoku in iztoku v času padavinskih dogodkov med oktobrom 2009 in avgustom 2010. V prvi fazi smo zajeli enkratne trenutne vzorce znotraj prvega vala naliva, kasneje smo pogostost zajemov vzorcev povečali. Dobljene rezultate smo analizirali in predlagali možne dopolnitve trenutno veljavne zakonodaje za padavinsko vodo s cest ter izpeljali sklepe, ki bodo v pomoč pripravljavcem metodologije ravnanja s padavinsko vodo s cest, s poudarkom na vzorčenju te vode. The subject of the study is stormwater runoff from the highway section Maribor –Lenart and performance evaluation of two wet basins for stormwater treatment (structures 10a and Dragučova). Spatial and temporal variability of pollutant loadings depends on many factors that are non-linearly related: climate, traffic, road structure, land use and other local conditions. In Slovenia, the stormwater methodology has not been established yet, as we do not have a comprehensive long term study of water quality monitoring. The first part of this thesis is a literature overview of storm water, with an emphasis on the Slovenian. The experimental portion presents a selection of treatment structures suitable for sampling, determination of the sampled parameters and manual sampling of waters from a wet basin inlet and outlet during rainfall events between, October 2009 and August 2010. During the first flush, one grab sample or a series of grab samples have been collected. Water samples have been analyzed and improvements have been suggested to the Slovenian storm water legislation. Some key conclusions from the study will also contribute to the development of national storm water sampling methodology. |
