This document reports on a study that measured the concentrations of naturally occurring radionuclides in fly ash from coal-fired brick kilns in Bangladesh. The study found:
1) Fly ash emitted from brick kilns during coal burning gets enriched with some naturally occurring radionuclides like uranium, thorium, and potassium.
2) Measurements of the activity concentrations of uranium-238, thorium-232, and potassium-40 in fly ash samples collected from three brick kilns' stacks found levels above detection limits.
3) The results indicate fly ash from brick kilns may contribute to environmental radiation due to the presence of natural radionuclides.
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[ - 16'n Asian Chemical Congress 2016
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I STUDY OF NATURALLY OCCURRING RADIONUCLIDES IN FLY ASH
I FRO{ COAL.FTRED BRICK KILNS
I Md. Jainal Abedinr, Md. Rezaul Karimr*, Masud Kamal', Md.Irazrat AIi Miah-, Md'Tarex
I ),i*ii.rrtrii,lli*";:;r*::"r:*;,*:il*r*,
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Email: rezaulkarim68@Yahoo'com
I o,--,,rrech is the g,h largest populous country burdened with 160 million people' The increasing
r ;#?##rr"r," is rushing towards urban and devel0ped areas. To meet the increasing need of
I ffiJ;;;fi#y and other infrastructure, the demand of bricks is soaring especially in the
I T::ilY,-':::';ry like Banglaa"rt . co.rrntly, around 6-8 thousands brick kilns are in operation
I ::"f:,'j':":;. more than six billions bricks annually by burning mostly coal' During burning
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I ::i:H"i.T l"u bottom urr, ,u-it"s coliected from three different coal-fired brick kilns of
I H?#i#;r;"". The activity concentration of natural ("tU, lt"n.TlooK;
at'd anthropogenic
I Ifi""i"rr%lirrr.ria" was measured using the most modem high-resolution galnma-ray
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I L^;; ;-:",y Centre, Chittagong. The activity .";;;o"i*t of ittu, zzz'5 and
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