158 Hkkjrh; oSKkfud ,oa vkS|ksfxd vuqla/kku if=kdk o"kZ 17 vad ¼2½ fnlEcj 2009 Hkkjrh; oSKkfud ,oa vkS|ksfxd vuqla/kku if=kdk o"kZ 17 vad 2 fnlEcj 2009 i`- 158-164 jkuhxat dks;ykapy ds [knku ty dh xq.koÙkk dk v/;;u % ,d leh{kk f{krhUnz dqekj flag] eqds'k dqekj egrks] vHk; flag ,oa ch ds frokjh Hkw&i;kZoj.k foHkkx ¼Ik;kZoj.k izca/ku lewg½ dsUnzh; [kuu ,oa baZ/ku vuqla/kku laLFkku ¼lh-,l-vkbZ-vkj-½] /kuckn & 826 015 ¼>kj[kaM½ lkjka'k % jkuhxat dks;ykapy dks Hkkjr esa dksy [kuu {ks=k ds uke ls tkuk tkrk gSA jkuhxat dks;ykapy ds [knku ty dh xq.koÙkk dk vkdyu djus ds fy;s [knku ty ds HkkSfrd vkSj jklk;fud xq.kksa dh fo'ks"krkvkas dk v/;;u fd;k x;kA orZeku v/;;u esa [knku ty dks ?kjsyw vkSj is;ty esa mi;ksx djus gsrq [knku ty ds fofHkUu izkpy iSjkehVjksa dh Hkkjrh; is;ty ekud IS: 10500 ds lkFk rqyuk dh x;hA 8 [kuu {ks=kkas ls [knku ty ds dqy 27 uewus ¼Hkwfexr vkSj [kqyh [knku ls½ ,d=k fd;s x;sA bu uewukas ls fofHkUu izkpy iSjkehVj tSls ih ,p] pkydrk] dqy ?kqyu'khy Bksl] VchZfMVh] ?kqyu'khy vkWDlhtu] dBksjrk] DyksjkbM] lYQsV] ckWbdkcksZusV] {kkfj;rk] lksfM;e] iksVsf'k;e] dSfY'k;e] eSXuhf'k;e bR;kfn dk fo'ys"k.k fd;k x;kA [knku ty ds uewuksa dh ih ,p 6-5 ls 8-2 ds chp ik;h x;h tks fd Hkkjrh; is;ty ekud 10500 ds vuqlkj viuh mfpr lhek 6-5 ls 8-5 ds e/; esa ik;h x;hA [knku ty dh pkydrk 331ls 1386μS/ cm ds chp ik;h x;h tcfd VchZfMVh 0.6 NTU ls 16.9 NTU ds chp ik;h x;hA bu uewuksa esa DyksjkbM viuh okNauh; lhek ds vUnj ik;k x;kA lYQsV 1-77 ls 263-9mg/L ds chp tcfd {kkjh;rk 50-0 ls 662mg/L ds e/; ik;h x;hA [knku ty esa lksfM;e vkSj iksVsf'k;e dh lkUnzrk Øe'k% 4-2 ls 137-7mg/L vkSj 1-4 ls 7-5mg/L ds chp ik;h x;haA dSfY'k;e vkSj eSXuhf'k;e dh lkUnzrk Hkwfexr [knku ty esa 3-3 ls 60-1mg/L vkSj 4-6ls 68-1mg/L ds chp ik;h x;hA [knku ty ds uewuksa dk fo'ys"k.kkRed v/;;u djus ls irk pyk fd [knku ty ihus ;ks X; mfpr ugha gS tcfd ;g ty ?kjs yw vkS j d` f"k mi;ks x gs rq la rks "ktud ik;k x;kA Quality assessment of mine water of Raniganj coalfield areas : A case study Kshitindra Kumar Singh, Mukesh Kumar Mahato, Abhay Singh & B.K.Tewary Geo-Environment Division ( Environment Management Group) Central Institute of Mining & Fuel Research (CSIR), Dhanbad - 826 015 (Jharkhand) Abstract Raniganj coalfield is India’s well known and the richest coal mining belt. The physico-chemical characteristics of mine water of the upper catchments of Raniganj Coalfield (W.B.) were studied to evaluate the water quality assessment. The aims of the present work is to characterize and to assess the suitability of mine water for domestic purposes by comparing various parameters of mine water with drinking water standard as per IS: 10500. A total of 27 mine water samples were collected from 8 mining areas including underground and open cast coal mines. These samples were analyzed for various parameters such as pH, conductivity, total dissolved solids, turbidity, dissolved oxygen, total hardness, chloride, sulphate, bicarbonate, alkalinity, sodium, potassium, calcium and magnesium etc. The pH values of water samples range from 6.5 to 8.2 which are within the permissible limit of 6.5 to 8.5 as per the drinking water standards IS: 10500. Conductivity in mine water varied from 331 to 1386 μS/cm. Turbidity in mine water varied from 0.15 to 16.9 NTU. The values of chloride content of all mine water samples were also found to be within the desirable limit. Sulphate content in underground mine discharged water ranged from 1.77 to 263.9 mg/L while the alkalinity content in the mine water samples varied from 50.0 to 662 mg/L. The sodium and potassium concentration in mine waters varied from 4.2 to 137.7 mg/L and 1.4 to 7.5 mg/L, respectively. The calcium and magnesium concentration in underground mine water varied from 3.3 to 60.1 mg/L and 4.6 to 68.1 mg/L, respectively. The analytical results of mine water samples revealed that mine water, in general, was satisfactory for domestic use. izLrkouk jkuhxa t dks ;yka py Hkkjr es a dks y [kuu {ks =k ds fy;s iz fl} gS A jkuhxa t dks ;yk {ks =k if'pe ca xky vkS j >kj[kM jkT; es a vka f'kd :i ls nkeksnj ?kkVh dks;ykapy ds iwoksZÙkj Hkkx esa fLFkr gSA jkuhxat dks;ykapy yxHkx 285-1 oxZ fdeh- ds {ks=k esa QSyk gqvk gSA orZ eku es a dks ;yk Hkw fexr rFkk [kq yh [kuu fof/k;ka s }kjk dks y ba fM;k