i

im W ffi[ - 16'n Asian Chemical Congress 2016

tL, *u, noticed that As, pb and Mn in hair/wool, liming agents and liming.wastewater were ln

I ;:##;;ntrations neverrheless cd was berow detectlon tmit (Fig. 1). Among the heavy

I metals. amount of Mn was the highest level'

Li" rr.*, metars containing wastewater from the tanneriesis directry discharged to aquatic

I ifit", *,i.#'l"f.u"tion is adsorb"AUy soivsediment-The presenc: 9f heay metals in yaJer or

I ffi']}" ;;into food chainthrougrr'"ra""r chemical oibiologi"al reactions or adsorb heavy

I il:il,,j;lil be eluted into groundwater that could be a great ttt "ut

for human health in near

I '## i|i""*, heavy metats pollution, tanneries stroila foflow an altemative hair saving

I liming pro.L., e.g. enzymatic process' EN-op-06

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*,

I 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

Im,i::r*r.l'rT;'Hi#nffi ,:Hlff ii*t*it#,,i[il*]3p,;{T#,ft:i*rI#;*ffi :rlmT":1i#,:*trffiHJrm;l*:11ilfl f"PiJhl:"ffi 1".*:lI ;l.ffi:;t:ili, burnt, the fly ash that is emitted througtr-the stack gets enriched in some of the

If ffi ,,",'#;:5*.,ry,,**l,S*nm';l*ry;',X13,Xi",'H:T#"Xff ':l;T3l:lH

IH*,?:r,"T;tti;*,iT'""'j'^*[,:1':it;::x't*m;T'":t'gililti"[-rydq=1ii"'f, :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

I L^::lj::::y.tem equipped with a high -purity

germanium (HPce)^$etector available at the

-

l|rtutrulusLrJ iI L^;; ;-:",y Centre, Chittagong. The activity .";;;o"i*t of ittu, zzz'5 and

aoK were

-

f\tuulru lrrvrE

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