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Simulacija izpustov slanice z razsoljevalne naprave z modelom Cormix : magistrsko delo
Korenika, Romina (Author), Žagar, Dušan (Mentor) More about this mentor... This link opens in a new window, Kryžanowski, Andrej (Co-mentor), Atanasova, Nataša (Co-mentor)

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Abstract
V prihodnje bo za slovensko Obalo nujno potrebno zagotoviti dodaten vir pitne vode. Ena od možnosti je razsoljevanje morske vode s postopkom reverzne osmoze (RO), ki je trenutno v poskusni uporabi v Marini Koper. V magistrski nalogi smo preučevali okoljski vpliv izpustov večjih količin slanice iz razsoljevalne naprave, ki deluje po principu RO. Kot edini indikator onesnaženja smo upoštevali koncentracijo soli in upoštevali smernice za določitev mejne vrednosti slanosti, ki se uporabljajo v Sredozemlju. V nalogi smo preučevali vpliv geometrije izpusta na razredčenje slanice in velikost območja mešanja (bližnje območje) z močno povišano slanostjo. Glede na potrebe po vodi v različnih letnih časih smo izbrali dva režima obratovanja razsoljevalne naprave, 240 l/s poleti in 60 l/s pozimi. Poiskali smo optimalno konfiguracijo izpusta, ki podaja najmanjšo površino bližnjega območja, kjer je še zagotovoljeno ustrezno razredčenje. Ob polnem obratovanju v izbranih, za mešanje neugodnih pogojih, znaša prizadeta površina do 2100 m2, ob znižanem obratovanju pa je približno osemkrat manjša. Ob upoštevanju prekrivanja obeh območij je skupna površina bližnjega območja manjša od 2300 m2. Za bolj točno oceno razredčenja in velikosti bližnjega območja bodo potrebne dodatne meritve na lokaciji potencialne razsoljevalne naprave.

Language:Slovenian
Keywords:razsoljevanje, reverzna osmoza, izpust slanice, okoljski vplivi, bližnje območje, model CORMIX
Work type:Master's thesis/paper (mb22)
Tipology:2.09 - Master's Thesis
Organization:FGG - Faculty of Civil and Geodetic Engineering
Year:2019
Publisher:[R. Korenika]
UDC:502/504:628.165(262.3)(497.4)(043.3)
COBISS.SI-ID:8767073 Link is opened in a new window
Views:89
Downloads:59
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Secondary language

Language:English
Title:Simulation of brine discharges from desalination plants using Cormix model : master thesis
Abstract:
In the future, the Slovene coastal area will be in dire need of an additional source of drinking water. A possible solution is desalination of seawater with reverse osmosis (RO), currently being tested in Marina Koper. In the thesis we analysed the environmental impact of larger brine discharges from a RO desalination plant. Salinity of the discharge was used as the only indicator of pollution in this analysis, and the salinity threshold concentrations used in the Mediterranean area were taken into account. We analysed the impact of the discharge geometry on brine dilution and on the size of the mixing zone (near field) with significantly elevated salinity. Based on the water demand during various seasons, two operating regimes were chosen for the desalination plant: 240 l/s during the summer and 60 l/s in winter. The optimal discharge configuration – the smallest near field that still ensures adequate desalination – was determined. At the full operating capacity in the selected conditions, unfavourable for mixing, the affected area measures around 2100 m2; at the lower operating capacity this area is about eight times smaller. For a more precise evaluation of the dilution processes and the size of the near field, further measurements at the site of the potential desalination plant are necessary.

Keywords:desalination, reverse osmosis, brine discharge, environmental impact, near-field, CORMIX model

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