id: 24945
Назва: Ecological evaluation of wax produced in conditions of pollution of medium oils by radionuclides and hard metals
Автори: Razanov S. F., Mudrak O. V., Mudrak H. V.
Ключові слова: cesium – 137, strontium – 90, lead, cadmium, wax, wax raw materials.
Дата публікації: 2020-05-27 14:42:45
Останні зміни: 2020-05-27 14:42:45
Рік видання: 2020
Аннотація: Abstract. The article defines the influence of 137Cs, 90Sr, Pb, and Cd on the quality of beeswax. It was established that their concentration in the wax obtained from bee families for the honey fields of the Northern Polissya contaminated by radionuclides and heavy metals as a result of the Chernobyl disaster was lower than the Maximum permissible concentration (MPC) that make
up 137Cs – 200 Bq/kg, 90Sr – 50 Bq/kg, Pb – 1 mg/kg and Cd – 0.05 mg/kg.
It is proved that due to the washing of not wax components from the wax raw material before suspension of their transition to the solvent there is a decrease in the concentration of 137Cs, 90Sr, Pb and Cd in the wax produced, respectively, by 34.2%, 48.6%, 58.8% and 83.4 % At a water
temperature of 60 C, which was used as a solvent for non-volatile components of wax raw materials, during the process of washing, a decrease in the transition of 137Cs, 90Sr, Pb and Cd in the resulting wax is observed, respectively, at 0.9%, 0.5%, 13.4%, and 1.05%. The article analyzes that dry processing of wax raw materials compared to wet contributes to a lower transition of non-volatile components contaminated by radionuclides into produced waxes. In particular, there was a decrease in the produced wax 137Cs by 28.3%, Cd by 23.1%, Pb by 23.7%.
URI: http://repository.vsau.org/repository/getfile.php/24945.pdf
Тип виданя: Статті у зарубіжних наукових фахових виданнях (Copernicus та інші)
Видавництво: International periodic scientific journal "Almanahul SWorld". - Бельцы, 2020. - Вип. № 4. - С. 106-112.
Розташовується в колекціях :
Ким внесений: Адміністратор
Файл : 24945.pdf Розмір : 760783 байт Формат : Adobe PDF Доступ : Загально доступний
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