Abstract
The existing groundwater source 'Vodokanal' for the public water supply of Becej city in Serbia tapping groundwater from three water-bearing horizons over 15 wells with summary capacity of 100 l/s. Near the public water source of Becej exists groundwater source 'Soja Protein' for industry with current capacity of 12 l/s which tapped same horizons. In the coming period is planned to increase summary capacity of this groundwater source up to 57 l/s. Also, the increase of summary city's source capacity is planned for 50 l/s in the next few years. That is means an increase of groundwater abstraction for an additional 84 % from the same water-bearing horizons. Application of hydrodynamic modeling, based on numerical method of finite difference will show the impact of increasing the total capacity of the source 'Soja Protein' on the groundwater level in groundwater source 'Vodokanal' and effects of additional decrease in groundwater levels, in all three water-bearing horizons, on the wells of the 'Vodokanala' groundwater source due to operation of industrial source. It was done 7 variant solutions of the extensions of groundwater sources and are their effects for a period of 10 years with the aim of the sustainable management of groundwater.
Highlights
Bečeja i severno od Novog Sada
It was done 7 variant solutions of the extensions of groundwater sources and are their effects for a period of 10 years with with the aim of the sustainable management of groundwater
Summary
Bečeja i severno od Novog Sada (slika 1). Teren obuhvaćen istraživanjima i matematičkim modelom ima oblik pravougaonika sa dužinom stranica 12.8 x 13.2 km i zauzima površinu od 168.96 km. U vertikalnom profilu do dubine oko 130 m razvijena su četiri vodonosna sloja. Najplići vodonosni sloj zaleže do dubine oko 30 m. U ovim heterogenim sedimentima formirana je izdan sa slobodnim nivoom čije se vode ne koriste za javno vodosnabdevanje ili za potrebe industrije. Ostala tri vodonosna sloja leže na dubini od 60 - 130 m. Prostorne karakteristike tri dublja vodonosna sloja prikazane su u tabeli 1, a regionalni hidrogeološki profil vodonosnih slojeva prikazan je na slici 2. Vodonosne slojeve kaptiraju bunari oba izvorišta i podzemne vode se koriste i za javno vodosnabdevanje i za potrebe industrije. Bunari su urađeni najčešće kao višesegmentni i zahvataju više vodonosnih slojeva: na 12 bunara kaptirana su istovremeno dva sloja, na 10 kaptirana su sva tri, a samo na 3 bunara kaptiran je jedan sloj. Slika 2 - Hidrogeološki profil (profilna linija na slici 1) Legenda: 1. izdan sa slobodnim nivoom (kvartarni peskovi) 2. izdan pod pritiskom (kvartarni peskovi) 3. uslovno bezvodne stene (kvartarne gline) 4. nivo izdani pod pritiskom 5. pozicija bunarskog filtera
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