Abstract
Ash from 16 different biofuel powered plants in Sweden collected in 2-week intervals over half a year were analyzed for the activity concentration of radiocesium, potassium and radiostrontium. The flux of radionuclides at different steps in a pulp mill process were also studied. The gamma emitting radionuclides such as 137Cs and 134Cs are of prime interest when considering current dose rates on a biofuel waste deposit. Measurements of the absorbed dose to superficial tissue using TL-dosimeters showed a clearly increasing trend for the dose rate (+5 nGy/year) as a function of time when measure 1 m above different locations on the dump corresponding to deposits made from 1987 to 1990. The present investigation shows that besides the potential increase in absorbed doses to a rather limited population, waste products must be considered from a radiological point of view due to the involved concentration processes. The radionuclides might play an important role in the understanding of the effects of using waste products as fertilizers.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.