The Effects of Milk Processing on 137 Cs and 90 Sr Concentrations in - - PowerPoint PPT Presentation

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The Effects of Milk Processing on 137 Cs and 90 Sr Concentrations in - - PowerPoint PPT Presentation

Aug 29, 2022 240 likes •391 views

The Effects of Milk Processing on 137 Cs and 90 Sr Concentrations in End Products Ferrocyne 95% Fe 4 [Fe(CN) 6 ] 3 +5% KFe[Fe(CN) 6 ] COW*MILK* Giese Salt NH 4 Fe[Fe(CN) 6 ] PORK* BEEF* Nigrovich Salt KFe[Fe(CN) 6 ] FERROCYNE * CHICKEN*

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The Effects of Milk Processing on 137Cs and 90Sr Concentrations in End Products

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Ferrocyne 95% Fe4[Fe(CN)6]3 +5% KFe[Fe(CN)6] Giese Salt NH4Fe[Fe(CN)6] Nigrovich Salt KFe[Fe(CN)6] COW*MILK* BEEF* GOAT*MILK* CHICKEN* PORK* EGGS*

FERROCYNE*

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Reduction of Collective 137Cs/90Sr Doses via Changing Milk to Meat Production (given: the soil contains 20 kBq/m2 90Sr and 1000 kBq/m2 137Cs)

FORAGE:

500 tons

137Cs – 847 MBq 90Sr – 193 MBq 137Cs – 847 MBq 90Sr – 193 MBq

MILK, 400 t

137Cs – 67,6 MBq

90Sr – 2,9 MBq MEAT, 37,3 t

137Cs – 847 MBq

90Sr – 193 MBq Collective doses, mZv

137Cs – 36,9

90Sr – 3

39,9

Collective doses, mZv

137Cs – 880 90Sr – 232

1112

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Collective Radiation Doses after Alternative Use

  • f Contaminated Grain Crops

Grain crops 500 t

Chicken, 161 t

137Cs – 2,33 MBq

90Sr – 0,017 MBq Beef, 37,3 t

137Cs – 2,16 MBq

90Sr – 0,019 MBq Pork, 81,8 t

137Cs – 1,68 MBq 90Sr – 0,004 MBq 137Cs – 40 MBq

90Sr – 22 MBq

137Cs – 40 MBq

90Sr – 22 MBq

137Cs – 40 MBq

90Sr – 22 MBq Bread

137Cs – 40 MBq

90Sr – 22 MBq

137Cs – 260 90Sr – 440

700

137Cs – 30,3 90Sr – 1,3

31,6

137Cs – 28 90Sr – 1,5

29,5

137Cs – 21,8 90Sr – 0,3

22,1

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COMPOSITION OF DAIRY AND BEEF CATTLE RATIONS FOR DIFFERENTIATED USE OF FEED WITH VARIOUS LEVELS OF RADIOACTIVE CONTAMINATION

* Dr.(Viktor(S.(Averin!

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21

Actmean

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Actmin Actmах

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Actmax Actmin

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24 Initial activity concentration of

137Cs in muscle tissue, Bq/kg

Activity concentration of

137Cs in feeding

ration, Bq/day Cleaning terms, days no ferrocyanides applied ferrocyanides applied

500 1000 7 not applied 2000 10 not applied 3000 14 not applied 700 1000 20 not applied 2000 25 not applied 3000 30 20 4000 45 30 1000 1000 30 20 2000 40 25 3000 50 35 4000 60 40 5000 90 50 1400 1000 60 35 2000 65 40 3000 75 45 4000 85 50 5000 100 60

Recommended terms for cleaning livestock to obtain beef under 500 Bq/kg

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( Doses+of+internal+irradia*on+of+137Cs+and+90Sr+in+view+of+the+received+admissible+levels+in+foods,+ac*ng+on+ the+territory+of+Belarus,+Russia,+Ukraine+and+the+Uniform+sanitary+requirements+of+the+Customs+Union,+mSv+/+ year(

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Радионуклид Республика Беларусь РДУ-99 Российская Федерация СанПин 2.3.2.1078-01 Украина Таможенный союз Цезий-137 0,78 1,20 0,70 0,59 Стронций-90 0,08 0,93 0,33 0,96 Суммарная доза 0,86 2,13 1,03 1,55

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SLIDE 14