Cost of Wwtp PLANT
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Project Name Date Stage WWTP Plant 12/08/13 0 RO & NF INPUT Process Input Flow & Water Quality Primary Treatment Product Flow 4795.5 L/s 76019 Plant Production Flow 4380.8 L/s 69444 Feed TDS 500 mg/L Production TDS (target) 50 mg/L Percent of Mono-valent ions 1.00 Decimal Percent of Multi-valent ions 0.00 Decimal Average Molecular Weight 35.82 g/mol Allow Blending Y Yes (Y) or No (N) Recovery Rate 0.85 Decimal Product TDS 3 mg/L Product Flow 3966.0 L/s 62870 NF/RO Feed Flow 4665.9 L/s 73964 Concentrate TDS 3317 mg/L Concentrate Flow 699.9 L/s 11095 Bypass flow for blending 414.75 L/s 6575 % blending 9.5 % Membrane Manufacturer Specifications Membrane Manufacturer FilmTec Model # BW30-400 Membrane Diameter 20.32 (10.16 or 8.0 Productivity 23 6.1 Area per module 37 398 1550 kPa 225 Test solution TDS 1500 mg/L Avg. MW of TDS, 58 mg/mmole NaCl Chloride Rejection 99.5 % 0.995 Sulfate Rejection 99.8 % 0.998 Recovery Rate 10 % Temperature 25 77 NaCl dissociation constant 0.99 26 m 3 /day m 2 Operating pressure, Papp o C Cf, conc. of salt in feed water mole/m 3
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Transcript of Cost of Wwtp PLANT
Sheet1
Project NameDateStageWWTP Plant12/08/130
RO & NF INPUT95.957435.08536585377570Process InputConstruction Cost Input Operations & Maintenance Cost InputApplicable RangeApplicable RangeLower LimitUpper LimitLower LimitUpper LimitFlow & Water QualityMembrane & Unit ConfigurationMembrane Capacity342,666m3/day90,532,544gpdElectricity Rate0.07$/kWhPrimary Treatment Product Flow4795.5L/s76019gpmBypass35,834m3/day9,467,456gpdChemical CostsPlant Production Flow 4380.8L/s69444gpmTotal Capacity378,500m3/day100,000,000gpd Citric Acid0.14$/kgFeed TDS500mg/LElement Productivity17m3/day4,496gpd H2PO423.7$/kgProduction TDS (target)50mg/LFlux0.46m3/(m2 * day)11.29gfd NaOH18$/kg 50%Some Example Membrane SpecificationsPercent of Mono-valent ions1.00DecimalNumber of Elements20,137.0elementsMembrane Life3YearsDate last checked:9/24/049/24/04Percent of Multi-valent ions0.00DecimalNumber of elements per vessel7elements / vessel Ave Intrinsic Rejection0.996TypeNFNFAverage Molecular Weight35.82g/molNumber of Elements20139elements Ave Observed Rejection0.996Test SolutionMembrane ManufacturerFilmTecFilmTecHydranauticsKoch/Fluid SystemsKoch/Fluid SystemsKoch/Fluid SystemsDuPont Rowpu SW30M-60408040 HSY SWCAllow BlendingYYes (Y) or No (N)Number of Pressure Vessels2877for 2:1 array Apparent Rejection0.996Site ConcentrateModel #BW30-400SW30-80408040LHYCPA2FS8822HR400 PremTFC-S4 (4920 S)TFC-SR2 8" (8723 SR2-400)6880T B-10 TwinRowpu SW30M-60408040 HSY SWCRecovery Rate0.85DecimalMax Vessels per Skid60vessels / skidProductivity23m3/moduleMembrane Diameter (cm)20.3220.3220.3220.3210.1620.3220.3215.2420.2Product TDS3mg/LNumber of Skids (manual input)skidsCleaning Rate6per YearProductivity (m3/day)402341.632.27.645.460.5823.5Product Flow3966.0L/s62870gpmNumber of Skids (automatic calc)48skidsStaff Days/day30Area per module (m2)3727.737.230.77.237.218104389.029.26NF/RO Feed Flow4665.9L/s73964gpmRecovery Rate0.85DecimalLabor Rate29.05$/hrOperating pressure, Papp (kPa)1550550015501550552380689055005500Concentrate TDS3317mg/LBuilding Area10934m2117692ft2Lifetime30YearsTest solution TDS200035000150020008502000350001900032000Concentrate Flow699.9L/s11095gpmAdministrative Area100m21076ft2Interest Rate6%Avg. MW of TDS, 58.4458.4458.458.458.458.458.4458.4458.44Bypass flow for blending414.75L/s6575gpmOdor Control?NYes (Y) or No (N) Chloride Rejection99.599.19999.7852099.19999.2% blending9.5%Emergency Generatore Size0.7MW Sulfate Rejection99.899.899.899.998.59799.89999.8Membrane Manufacturer SpecificationsHigh Pressure Feed PumpYYes (Y) or No (N)Recovery Rate15101510151535810Membrane ManufacturerFilmTec Pump StylePD*PD, VST or CSSTemperature (oC)252525252525252525Model #BW30-400 Height DIfference4m13.12ftMembrane Diameter20.32(10.16 or 20.32 cm)8.0in Motor Efficiency0.95Productivity23m3/day6.1kgal/day Pump Efficiency0.90DensitiesCostArea per module37m2398ft2 Coupling Efficiency1.00Sufuric acid1.84g/mL0.11$/kgOperating pressure, Papp1550kPa225psi Number of Pumps21Sodium Hydroxide2.13g/mLTest solution TDS1500mg/L Differential Pressure1542kPa224psiAntiscalant1.3g/mLAvg. MW of TDS, 58mg/mmole NaCl Capacity per pump0.245m3/s3890gpmDisinfectant1g/mL Chloride Rejection99.5%0.995decimal Pipe X-Sectional Area0.098m2152.2in2H2PO41.7g/mL Sulfate Rejection99.8%0.998decimal Size 528.3hpRecovery Rate10%Energy Recovery for SeawaternYes (Y) or No (N)errorerrorHCl 37%0.14$/kgTemperature 25oC77oFEfficiency0.60NaCl dissociation constant 0.99Efficiency0.00This number is the efficiency of the energy recovery device - it reduces the size of the High Pressure pumpTransfer Pumps (to HPP)YYes (Y) or No (N)Cf, conc. of salt in feed water26mole/m3 Pump StylecssVST or CSSCp, conc. of salt in product water0.13mole/m3 Height DIfference2m6.56ftCr, conc. of salt in reject29mole/m3 Motor Efficiency0.94Cm, bulk conc.27mole/m3 Pump Efficiency0.75Osmotic pressure146kpa21psi Coupling Efficiency1.00Net driving pressure, NDPo1404kpa203.7533352179psi Number Transfer Pumps20A, water transport coefficient4.64E-12m3m-2Pa-1sec-1 Pressure Differential310kPa45.0psiOperating pressure Capacity per Pump0.258m3/s4085.0gpmNet driving pressure , NDPi1404kPa203.7533352179psi Pipe X-Sectional Area0.103m21.11ft2Cf, conc. of salt in feed water14mole/m3 Size163hpCp, conc. of salt in product water0.062mole/m3Product Water PumpYYes (Y) or No (N)Cr, conc. of salt in reject93mole/m3 Pump StyleCSSVST or CSS3.0350.0Cm, conc. of 53mole/m3 Height DIfference2m6.56ftTemperature 12oC Length of Pipe10m32.81ftTemperature Coefficient =1.023^(-25+T)0.740 Motor Efficiency0.94Osmotic pressure, Posm138kpa20psi Pump Efficiency0.75Applied pressure, Papp1542kPa224psi Coupling Efficiency1.00 Number Pumps20 Pressure Differential310kPa45.0psi Capacity per Pump0.219m3/s3472.2gpm Pipe X-Sectional Area0.088m20.29ft Size139hp
3.0350.0
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