SI Cal Gelekir
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COMPOSITION OF FORMATION WATE Parameter Unit mg/L moles/l 1 pH - 7.1 2 carbonate NTU 0 0 3 bicarbonate mg/l 519 0.008508196721311 4 chloride mg/l 33548 0.945014084507042 5 sulphate mg/l 420 0.004375 6 calcium mg/l 1684 0.041995012468828 7 magnesium mg/l 343 0.014 8 Iron mg/l 30.4 0.000542857142857 9 sodium mg/l 19236 0.836347826086957 10 Potassium mol/l 0 0 11 Strontium mg/l 560 0.006392694063927 12 Barium mg/l 0.66 4.80699198835E-06 13 salinity 48928 14 TDS 56341.06 15 ionic strength 1.02955579499286 Remark : Sample collected- Old samples 2013 8 Sodium (Cal.) mg/l 19236 6 Calcium mg/l 1684 7 Magnesium mg/l 343 4 Chloride mg/l 33548 2 Carbonate mg/l 0 3 Bicarbonate mg/l 519 5 Sulphate mg/l 420 Temp. Temp. 90oC pH 7.1 K 1.44 pCa 1.45 pAlK 1.82 SI SI=pH-(K+pCa+pAlK) 2.39 No. (Old anal 70 o C
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Scale Inhibition calculation
Transcript of SI Cal Gelekir
TS-5A (G-58)COMPOSITION OF FORMATION WATER FROM kamalapuramSl.No.ParameterUnitmg/Lmoles/lIonic Concentration(Old analysis)1pH-7.12carbonateNTU003bicarbonatemg/l5190.00850819674chloridemg/l335480.94501408455sulphatemg/l4200.0043756calciummg/l16840.0419950125Ksp177magnesiummg/l3430.014x*10-48Ironmg/l30.40.00054285714Ksp680.00689sodiummg/l192360.836347826110Potassiummol/l00Con Fac*10-5moles/l*10-511Strontiummg/l5600.0063926941Ca16842.5421012Bariummg/l0.660.000004807SO43431.04356.7213salinity4892814TDS56341.0615ionic strength1.029555795Remark : Sample collected- Old samples 2013X=delM3853.280.0385328S=1000((X2+4Ksp)1/2 - X)52.48794860070.00828477670.09102074860.0524879486X*10-5X*10-58Sodium (Cal.)mg/l192362.242319.2X2+4Ksp0.00056000056Calciummg/l1684584200.02366432977Magnesiummg/l3438.22812.64Chloridemg/l335481.446967.2eq wt2Carbonatemg/l03.30Ca16842084.23Bicarbonatemg/l5190.82425.58SO4343487.14583333335Sulphatemg/l4202.18820.0000003467 =101826.58Act CaSO4 conc=0.40.00000138691.01826580.00000462510.0021506156Temp.70oC0.0000498844180.8729762154Temp.90oCpH7.1K1.44pCa1.45pAlK1.82SIPTB=17500(G-(X2+4(10 K-pH)1/2 )0.8729762154SI=pH-(K+pCa+pAlK)2.39G=Ca++ + HCO3- moles/lG=Ca++ + HCO3- moles/l0.00020050.0020.0022005X= Ca++ - HCO3- moles/l-0.00179950.0000032382carbonate02bicarbonate5191chloride335481sulphate4202calcium16842magnesium3432Iron30.42sodium192361Potassium01Strontium5602Barium0.662salinity48928TDS56341.06ionic strength
Lakwa effTable No.COMPOSITION OF TREATED EFFLUENT WATER (ETP-II, Lakwa)Sl.No.ParameterUnitConcentration1pH-8.02TurbidityNTU3.84Carbonatemg/lNil5Bicarbonatemg/l1006.56Chloridemg/l674.57Sulphatemg/l2.08Calciummg/l8.09Magnesiummg/l7.410Strontiummg/l0.710Sodium (Cal.)mg/l794.111Salinity ( as NaCl)mg/l1111.512TDS (Cal.)mg/l2493.2X*10-4Remark : Sample collected on 06-5-14Ksp1.4X*10-5X*10-54Ksp5.60.0005610Sodium (Cal.)mg/l794.06543542072.21746.9439579256X*10-48Calciummg/l8.02540.1Ksp1.6Con Fac*10-5moles/l*10-59Magnesiummg/l7.358.260.27Ca122.5306Chloridemg/l674.51.4944.34Ksp6.40.00064SO4311.0432.244Carbonatemg/l03.305Bicarbonatemg/l1006.50.82825.33Con Fac*10-5moles/l*10-5X=delM-2.24-0.00002247Sulphatemg/l22.14.2Ca8.022.520.05 =3621.1439579256SO421.042.08S=1000((X2+4Ksp)1/2 - X)23.6867297340.03621X=delM17.970.0001797X2+4Ksp0.0005600005Temp.70oC0.0236643297S=1000((X2+4Ksp)1/2 - X)25.1191595018pH8.03eq wtK1.36-6.67X2+4Ksp0.0006400323Ca12200.6pCa3.450.0252988595SO431480.6458333333pAlK3.7SIeq wtAct CaSO4 conc=0.6SI=pH-(K+pCa+pAlK)-0.48Ca8.02200.401SO42480.0416666667Act CaSO4 conc=0.042PTB=17500(G-(X2+4(10 K-pH)1/2 )6.558783151G=Ca++ + HCO3- moles/lG=Ca++ + HCO3- moles/l0.00020050.01650.0167005X= Ca++ - HCO3- moles/l-0.01629950.00026567370.00000021380.00000085520.00026652890.01632571240.00037478766.558783151
TS-3ACOMPOSITION OF FORMATION WATER FROM G-218 TS-3A (Geleki field)Sl.No.ParameterUnitIonic Concentration1pH-8.62TurbidityNTU-2Carbonatemg/l153Bicarbonatemg/l4274Chloridemg/l745.55Sulphatemg/l146Calciummg/l4.017Magnesiummg/l4.98Sodium (Cal.)mg/l648.40833333339Ionic Strenghmol/l0.029487510Salinity ( as NaCl)mg/l1228.511TDS (Cal.)mg/l1858.8183333333Remark : Sample collected on 06-05-14X*10-5X*10-58Sodium (Cal.)mg/l648.40833333332.21426.49833333336Calciummg/l4.01520.05X*10-47Magnesiummg/l4.98.240.18Ksp1.54Chloridemg/l745.51.41043.72Carbonatemg/l153.349.54Ksp60.00063Bicarbonatemg/l4270.82350.145Sulphatemg/l142.129.4Con Fac*10-5moles/l*10-5 =2959.4683333333Ca4.012.510.0250.0296SO4141.0414.56-4.535Temp.70oCX=delM-4.535-0.00004535Temp.70oCS=1000((X2+4Ksp)1/2 - X)24.5402894084pH8.6K1.32X2+4Ksp0.0006000021pCa3.550.0244949394pAlK3.75SIeq wtSI=pH-(K+pCa+pAlK)-0.02Ca4.01200.2005SO414480.2916666667Act CaSO4 conc=0.2005PTB=17500(G-(X2+4(10 K-pH)1/2 )3.2428264994G=Ca++ + HCO3- moles/lG=Ca++ + HCO3- moles/l0.000100250.0070.007100250.0000001002X= Ca++ - HCO3- moles/l-0.006899750.00004760660.00000005250.00000020990.00004781650.00691494560.00018530443.2428264994
TS-5A (G-65)COMPOSITION OF FORMATION WATER FROM G-65, TS-5A (Geleki field)Sl.No.ParameterUnitIonic ConcentrationIonic Concentration(Old analysis)1pH-8.496.692TurbidityNTU-2Carbonatemg/l15Nil3Bicarbonatemg/l12291.54Chloridemg/l745.56215Sulphatemg/l2316Calciummg/l12.03127Magnesiummg/l2.454.94Ksp5.60.000568Sodium (Cal.)mg/l523.05833333334299Ionic Strenghmol/l0.0242125Con Fac*10-5moles/l*10-510Salinity ( as NaCl)mg/l1228.51024Ca122.53011TDS (Cal.)mg/l1422.03833333331190SO4311.0432.24Remark : Sample collected- Old samples 2013X=delM-2.24-0.0000224S=1000((X2+4Ksp)1/2 - X)23.686729734X*10-5X*10-58Sodium (Cal.)mg/l523.05833333334292.2943.8X2+4Ksp0.00056000056Calciummg/l12.03125600.02366432977Magnesiummg/l2.454.98.240.184Chloridemg/l745.56211.4869.4eq wt2Carbonatemg/l1503.30Ca12200.63Bicarbonatemg/l12291.50.8275.03SO431480.64583333335Sulphatemg/l2312.165.10.0000040738 =2053.51Act CaSO4 conc=0.60.00001629520.020540.00001773520.0042113194Temp.70oC-0.0024113194-42.1980895485Temp.70oCpH6.69K1.3pCa3.55pAlK3.75SIPTB=17500(G-(X2+4(10 K-pH)1/2 )SI=pH-(K+pCa+pAlK)-1.91G=Ca++ + HCO3- moles/lG=Ca++ + HCO3- moles/l0.00030.00150.00180.0000003X= Ca++ - HCO3- moles/l-0.00120.00000144
TableTable No. 8Theoretical Scale prediction (Lakwa Effluent)SI No.SampleSICaSO4 Solubility (S), meq/lActual CaSO4 Conc., meq/lPTB1Eff. WaterLakwa ETP-0.4825.11915950180.20056.5587831512GLK#218 (TS-3A)-0.0223.6867297340.20053.24282649943GLK#58 (TS-5A)-0.9425.12380669220.40.87297621544GLK#65 (TS-5A)-1.9123.6867297340.6-42.1980895485Stiff and Davis method :SI(-) veWater is undersaturated with CaCO3 and scale forming is unlikely(+) veScale is likely to formVolone and Skillern :PTB ValueDescription for CaCO3 scalePTB < 0No scale0< PTB < 100Few scaling problems100 < PTB < 250Moderate scaling difficultiesPTB > 250Sever scaling occursS< Actual CaSO4 Conc.Water is undersaturated with CaSO4
