Naslov
Radioaktivnost odlagališta pepela i šljake
(RADIOACTIVITY AT ASH AND SLAG DEPOSITE SITE)

Autori
Kovač, Jadranka ; Marović, Gordana

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Zbornik radova VII. simpozija Hrvatskog društva za zaštitu od zračenja s međunarodnim sudjelovanjem / Barišić, Delko ; Grahek, Željko ; Krajcar Bronić, Ines ; Miljanić, Saveta - Zagreb : Hrvatsko društvo za zaštitu od zračenja, 2008, 261-265

ISBN
978-953-96133-6-3

Skup
VII. simpozij Hrvatskog društva za zaštitu od zračenja s međunarodnim sudjelovanjem

Mjesto i datum
Opatija, Hrvatska, 29.05.2008. - 31.05.2008

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Domaća recenzija

Ključne riječi
radioaktivnost; radon; odlagalište pepela; šljaka
(Radioactivity; Radon; Ash Deposit; Slag; Waste Pile)

Sažetak
By coal burning (in CBPP at about 1700 &ordm ; C) the activity originating from natural radionuclides is redistributed from underground and liberated into the environment. Most of the radioactive substances are concentrated in the ash and slag, which are heavy and drop to the bottom of a furnace. The bottom ash and slag are usually deposited in a waste pile, from where some activity may leach into environment. There are two coal burned power plants in the Croatian power system, both situated in Plomin, Istria County. The approximately 900 t of ash/slag are deposited on area of 120 000 m2. The thickness of the accumulated ash/slag is not over 8 m, and the thickness of the soil layer is about 60 cm, seeded with grass. There are also drainage system and a retention pond. Radon exhalations were measured at deposite site using passive charcoal detectors and gamma spectrometry. The mean value was 52 mBq×m-2×s-1. Waste material (about 20 000 t of ash/slag) from CBPP is transported to nearby cement plant, where it is used as secondary raw material. Gamma-spectrometric measurements, as well as total specific activities of alpha and beta emitters have been performed, and according to Croatian legislative, all samples may be used as building materials, and does not fall into category radioactive waste.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Javno zdravstvo i zdravstvena zaštita

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