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Flux and concentration processes of radioactive elements in the forest industry; dosimetry, biofueled heating plants, the alkaline and the acidic pulp mill processes

Abstract

A fraction of the radionuclides released to the forest ecosystem will be incorporated into different parts of the trees and the wood. A common factor for both biofueled power plants and pulp mills is that they concentrate the radionuclides initially present in the in the biofuel or wood in ashes or other products. The enrichment of radioactive elements is due to the combustion process or in a pulp mill, the combustion of bark and liquors, and also the processes in the pulp mill recycling system. The radiological impacts to man from forest industry arises form radiation emitted from the radionuclides present in ash and pulp mill liquors and liquor sludge. The quantification and calculation of past, present and future activity concentrations in biofuels, ash and pulp mill waste products are all important when assessments of the radiation dose is done. In order to assess the resulting dose to staff working close to radionuclide containing recycling systems and waste dumps, it is necessary to know the dynamics (inflow rate and residence time) of the radionuclides in that system.
Authors:
Publication Date:
Dec 31, 1992
Product Type:
Technical Report
Report Number:
NEI-SE-152
Reference Number:
SCA: 220502; 560101; PA: AIX-25:028172; EDB-94:051869; NTS-94:018303; SN: 94001177774
Resource Relation:
Other Information: PBD: 1992
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; 61 RADIATION PROTECTION AND DOSIMETRY; COMBUSTION PRODUCTS; RADIOACTIVITY; PAPER INDUSTRY; RADIONUCLIDE MIGRATION; SLURRIES; WOOD FUELS; CONTAMINATION; DOSE RATES; ECOSYSTEMS; FORESTS; RADIOECOLOGICAL CONCENTRATION; 220502; 560101; RADIOACTIVE EFFLUENTS; DOSIMETRY AND MONITORING
OSTI ID:
10138639
Research Organizations:
Lund Univ. (Sweden). Dept. of Radiation Physics
Country of Origin:
Sweden
Language:
English
Other Identifying Numbers:
Other: ON: DE94620854; CNN: Project SSI-P-663-92; TRN: SE9400047028172
Availability:
OSTI; NTIS; INIS
Submitting Site:
SWDN
Size:
48 p.
Announcement Date:
Jul 05, 2005

Citation Formats

Ravila, A, and Holm, E. Flux and concentration processes of radioactive elements in the forest industry; dosimetry, biofueled heating plants, the alkaline and the acidic pulp mill processes. Sweden: N. p., 1992. Web.
Ravila, A, & Holm, E. Flux and concentration processes of radioactive elements in the forest industry; dosimetry, biofueled heating plants, the alkaline and the acidic pulp mill processes. Sweden.
Ravila, A, and Holm, E. 1992. "Flux and concentration processes of radioactive elements in the forest industry; dosimetry, biofueled heating plants, the alkaline and the acidic pulp mill processes." Sweden.
@misc{etde_10138639,
title = {Flux and concentration processes of radioactive elements in the forest industry; dosimetry, biofueled heating plants, the alkaline and the acidic pulp mill processes}
author = {Ravila, A, and Holm, E}
abstractNote = {A fraction of the radionuclides released to the forest ecosystem will be incorporated into different parts of the trees and the wood. A common factor for both biofueled power plants and pulp mills is that they concentrate the radionuclides initially present in the in the biofuel or wood in ashes or other products. The enrichment of radioactive elements is due to the combustion process or in a pulp mill, the combustion of bark and liquors, and also the processes in the pulp mill recycling system. The radiological impacts to man from forest industry arises form radiation emitted from the radionuclides present in ash and pulp mill liquors and liquor sludge. The quantification and calculation of past, present and future activity concentrations in biofuels, ash and pulp mill waste products are all important when assessments of the radiation dose is done. In order to assess the resulting dose to staff working close to radionuclide containing recycling systems and waste dumps, it is necessary to know the dynamics (inflow rate and residence time) of the radionuclides in that system.}
place = {Sweden}
year = {1992}
month = {Dec}
}