Treatment of Radiological Medical Waste Using Concrete Cubic Molds
American Journal of Nanosciences
Volume 4, Issue 3, September 2018, Pages: 35-39
Received: Sep. 8, 2018; Accepted: Oct. 15, 2018; Published: Nov. 13, 2018
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Ali Abdulwahab Ridha, Physics Department, College of Science, Mustansiriyah University, Baghdad, Iraq
Lara Adnan Kadhim, Physics Department, College of Science, Mustansiriyah University, Baghdad, Iraq
Basim Abdlsattar Hussain, Ministry of Science and Technology, Directorate of Hazardous Wastes, Baghdad, Iraq
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Concrete cubic molds were made and manufactured using a fixed percentage of cement and sand to be as a container for the radiological medical waste in order to prevent radiation during the transfer of radioactive waste from hospitals to their own landfill sites to preserve the safety of people and the environment from radiation pollution. The maximum dose rate was 173.744 µSv/h in NHTc2 sample measured using RAD EYE B20 dosimeter, which has a very high activity as a medical waste (28.568 µCi), while the lowest dose value 0.297 µSv/h and activity 0.041 µCi was for MCI4 sample, except the dead samples which less than detection limit for the NaI(Tl) system. Also, the efficiency calculations of manufactured molds with thickness 3 cm were done by using Ba-133 and Cs-137 as a point source, because of the energies of these sources are close to that for I-131 and Tc-99 m exist in the medical waste samples. The shielding percentages were calculated and have very high values with using concrete molds, and the dose rate decreases with increasing the sand in the mold. Measurement of resistivity to compression for the molds were done to acknowledgment the strength to hold radiological waste through transfers or store of these kinds of waste. We found that the increase of the cement percentage (chosen 10, 20 and 30%) leads to increasing the mold strength.
Radiological Medical Waste, Concrete Molds, Dose Rate, NaI(Tl), Rad Eye B20
To cite this article
Ali Abdulwahab Ridha, Lara Adnan Kadhim, Basim Abdlsattar Hussain, Treatment of Radiological Medical Waste Using Concrete Cubic Molds, American Journal of Nanosciences. Vol. 4, No. 3, 2018, pp. 35-39. doi: 10.11648/j.ajn.20180403.12
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