首页|Assessment of radiological risk to workers and members of the public from the operation of a groundwater treatment plant in Jordan

Assessment of radiological risk to workers and members of the public from the operation of a groundwater treatment plant in Jordan

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The study aimed to evaluate the radiation doses received by workers at a pilot water treatment plant (WTP) in Jordan, It also examined the concentrations of gross alpha, gross beta, and radium activities in both groundwater and treated water, along with a radiological risk assessment for the waste generated by the treatment process. The radioactivity levels of gross alpha and gross beta in the groundwater were found to exceed the established drinking water limits, In the pilot WTP, two methods were applied for water treatment, namely, ceramic ultra-filtration (CUF) and reverse osmosis (RO), both of which produced treated water that met drinking water quality standards. The annual effective dose from external radiation exposure to the WTP workers was found to be less than 0.007 msv y~(-1) (during the filters backwash operation). However, the average annual dose from internal radiation due to inhalation of radon released from groundwater reached 3.2 mSv y~(-1), exceeding the 1 mSv y~(-1) limit. Therefore, monitoring radon levels in workplaces is recommended. Radioisotope concentrations in the waste (sludge) stockpiles exceeded clearance levels, requiring them to be treated as radioactive waste. Overall, the WTP successfully produced drinking water that met quality standards, and the methods used could be replicated in other locations.

ceramic ultra-filtrationdrinking watereffective doseradioactivityradiological riskradium

Ahmad Alomari、Fernando P. Carvalho、Muneer Aziz Saleh、Eman Bilbeisi、Faten Abusalim、Amal Alsayaheen、Refaat BaniKhala、Heba Bani Naser、Alaa Jaffal、Diana Al-Sharat、Ibrahim Abuzaitoun、Alaa Tarakhan、Zainab Naddaf、Jafar Alradaideh

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Energy and Minerals Regulatory Commission, Amman, Jordan

Instituto Superior Tecnico/Campus Tecnologico Nuclear, Universidade de Lisboa, Loures, Portugal

Office of Radiation Protection, Environmental Public Health, Washington State Department of Health, Lancing Michigan, USA

Water Authority of Jordan (WAJ), Amman, Jordan

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2024

10.2166/WS.2024.229

Water science & technology: Water supply

Water science & technology: Water supply

EI
ISSN：1606-9749
年,卷(期)：2024.24(11/12)