AERATORS
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Transcript of AERATORS
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AERATORS
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AERATION
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General theory for the oxygen transfer
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As mentioned before the MO need the dissolved oxygen for the oxydation:Biochemical oxydation of carbohydrates: glucose C6H12O6 + 6O2 6CO2 + 6H2O Biochemical oxydation of ammonia (Nitrification) 2NH4+ + 3O2 2NO2- + 2H2O + 2H+ 2NO2- + O2 2NO3+ + 2H2O + 2H+General theory
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General theory
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General theoryWHAT AFFECTS THE AERATION EFFICENCY:
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Oxygen transfer from the air bubble to the liquidGeneral theory
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Volume VVolume 100% 100% 100%Surface 100% 126% 159%General theoryInfluence of bubble size
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As a result the smaller the air bubbles are:
the larger is the bubble surface and by this, a larger contact layer air/water is obtained the longer the retention time will be Due to this facts more oxygen can be dissolvedGeneral theory
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General theoryInfluence of the temperature
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General theoryInfluence of the temperature
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Diagramm4
14.23
12.8
11.33
10.15
9.17
8.38
7.63
7.1
6.6
6.1
5.6
mg/l
Oxygen Saturation Values
Saturation value
A
Tabelle1
TemperatureSaturation value
1 C14.23
5 C12.8
10 C11.33
15 C10.15
20 C9.17
25 C8.38
30C7.63
35C7.1
40C6.6
45 C6.1
50C5.6
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As a result the cooler the water: the higher the oxygen saturation value and due to this the higher the O2 transfer Oxygen transfer tests should be made between +5C and +35C General theory
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the higher the ambient pressure and due to this the higher the O2 concentration / contact layer
the longer the retention time will beAs a result the deeper the immersion depth:Due to this facts more oxygen can be dissolvedGeneral theory
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General theoryCorrection factor of the altitude
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Influence of the altitude of the plantAnother important point is the altitude of the plant, as the oxygen proportion of air decreases with increasing altitude.
(until 200 m above sea level is not relevant)General theory
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General theoryThe main tasks of the aeration systems in activated sludge basins
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The requirement to the aeration systemsGeneral theory
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The requirement to the aeration systemsGeneral theory
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For the oxygen transfer of waste watersGeneral theory
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ALPHA AND BETA VALUEGeneral theory
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Alpha factorKla (sewage)
Kla (clean water) Type of aeration equipment Sludge age Conc. of surface active agents Type of waste water Intensity of mixing Type of process Location in the aeration basin Bubble size and velocity
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Betaratio between the oxygen saturation in process water and in clean water.
_941021455.unknown
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The value of depends onthe amounts of suspended mattersoluble organic compounds dissolved mineral salts
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General influences on the oxygen transfer
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1. Oxygen Transfer
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Oxygen TransferComposition of air1 m3 air
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Oxygen TransferComposition of air1 m3 air
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Definitions of the American Standard ASCEOTR [kgO2/h] Oxygen Transfer RateSOTR [kgO2/h] Standard Oxygen Transfer Rate
Mass of oxygen per unit time dissolved in a volume of clean water by an oxygen transfer system operating under standard conditions:
Dissolved Oxygen (DO) = 0 mg/lWater temperature = 20CBarometric pressure = 1013 hPa sea level
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Definitions of the American Standard ASCEAAE [kg O2/kWh] Actual Aeration Efficiency OTR per unit total power inputSAE [kgO2/kWh] Standard Aeration Efficiency
SOTR per unit total power input
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Definitions of the preliminary European StandardOC [kgO2/h] Oxygen Transfer Capacity
OC is the mass [kg] of oxygen transfered by an aeration installation in one hour in a tank of certain size filled with clean water at:
Dissolved Oxygen (DO) = 0 mg/lWater temperature = 20CBarometric pressure = 1013 hPaaOC [kgO2/h] Oxygen Transfer Capacity in mixed liquor
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Definitions of the preliminary European StandardaOP20 [kgO2/kWh] Aeration Efficiency in mixed liquor aOC per unit total power inputOP20 [kgO2/kWh] Aeration Efficiency in clean water under standard conditions
OC per unit total power input
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Definitions of the American Standard ASCE
AOR[kgO2/h] Actual Oxygen Requirement
SOR [kgO2/h] Standard Oxygen Requirement
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Conversionof SOR in AOR and vice versa
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7
up to 1,5
1,2 4,5 0,95Fine BubblesSystemSurface AeratorsABS SubmersiblesTA OKI
0,65
4,5
0,75
max. 1,2
1,1 4SAE in clean water[kg O2/kWh]a-Valuesdepends on waste waterAs a resultAAE in waste water[kg O2/kWh]General theory
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TO MAKE AN OFFER:1. SOTR and used -value2. AOR3. Process data:BOD5 inBOD5 outN inN total outNH4 outFlow amountTank dimensions and WLAltitudeDe nitrification involved?SBR process?
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Waste Water CharacteristicsBOD, Biological Oxygen DemandCOD, Chemical Oxygen DemandNitrogenPhosphoruspHSuspended Solids
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Typical Municipal Waste Water
BOD
mg/l
110 - 400
COD
mg/l
250 1000
Nitrogen
mg/l
20 85
Phosphorus
mg/l
4 15
Suspended Solids, SS
mg/l
100 - 350
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1.) Clean water must be made oxygen-free before measuring --> addition of Na2SO3 or N2
2.) Switching on the aerator and measure the increase of DO from c = 0 mg/l up to the saturation (3 probes)
3.) The increase of the dissolved oxygen concentration proceeds very quickly until it runs asymptotically to the saturation value.
4.) Inclination of the curve= kLaStandard Oxygen Transfer Testvery short test descripiton
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How to test it1 = Aerator2 = Air pipe3 = Thermometer4 = Oxygen probes 5 = Air flow meter6 = Power measuring7 = Test tank
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Standard Oxygen Transfer Test
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ABS / NOPOL AERATION SYSTEMS
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Dissolved Oxygen level< 1 mg/l may limit the growth of micro-organisms2 mg/l safe value> 2 mg/l efficiency of aeration decreases
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Other parameters
Aeration time in SBR something else than 24 hours
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Aeration parametersStandard Oxygen Transfer Efficiency SOTE, (%)SOTE = SOTR / Air flow * 0,28Specific Oxygen Tranfer Efficiency SpOTE, (%/m)SpOTE = SOTE/submerged depthOxygen absorption, (g O2/Nm3*m)SOE = SOTR / Air flow * submerged depthStandard Aeration Efficiency, SAE (kg O2/kWh)SAE = SOTR / Power
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ABS / NOPOL AERATION SYSTEMS
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PIK 300 SOTE curve
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Design of the aeration systemLoading to WWTPBOD-load (Kg/d)Nitrification / DenitrificationCalculation of AORMany alternatives, simple 0,8 - 1,2 Kg O2/ BOD-load (Kg BOD5 /d)
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Design of aeration systemCalculation of SOTREstimates for alpha (0,4 - 0,9) , beta (0,95-1,0)Operating parameters, temperature, oxygen level, water depthSOTR = 1/a x C*/(b x C*-CL) x q(20-T) x AORLayout designNegative/positive effects of the basin dimensionsMixing requirements (1,2 - 2,0 m3/m2)Number of diffusers, air flows (min, average, max)
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Fine bubble aerationThe most efficient way to aerate wastewaterExcellent control of the aeration processFlexible designTank dimensions not limitingCan be adjusted to match the loadDisc or membrane not suitable for all applications
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Investment cost of the WWTP
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Energy use in activated sludge WWTP
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Factors Affecting Standard Aeration Efficiency Bubble sizeBubble rising velocityHead loss of the aeration systemCompression efficiency
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Examples of Diffuser LayoutsHigh efficiencyLower efficiency
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KKI 215 Diffuser SOTE
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Spiral Flows in Aeration Tank
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Bubble SizeAffected by: Surface properties of the membrane or disc Pore sizeAir velocity in the poreOptimum bubble size 1- 3 mmSmaller bubble size: requires higher headloss results lower process efficiency
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Head loss of the Aeration SystemHead loss is generated by:Piping (1 - 3 kPa)Valves, filters, silencers (2 - 4 kPa)Diffuser (2 - 6 kPa)Fouling (0 - 4 kPa)Hydrostatic pressure(30 - 80 kPa)To minimize headloss:Low air velocities, low air flow/diffuserCleaning air filters, diffusers
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Bubble velocityDepending on: bubble sizediffuser density (spiral flows)diffuser layout (spiral flows)uncovered areas (spiral flows)Velocity of the single bubble 0,2 - 0,3 m/sActual vertical velocity 0,3 - 0,4 m/s
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ABS / NOPOL AERATION SYSTEMSNOPOL DISC DIFFUSER SYSTEMS
The experience gained over 25 years together with easily installable and long lasting parts as well as reliable and tailored solutions explain the worldwide success of the NOPOL DDS aeration systems
NOPOL O.K.I AERATOR/MIXEREfficient mixing, non-clogging, operational flexibility and easy installation are the key features of the NOPOL O.K.I. Aerator/mixer. Due to this it is the premium choice for all demanding aeration applications. ABS self aspirating aeratorsEfficient mixing, non-clogging, operational flexibility and easy installation are the key features of the ABS TA Aerator/mixer. Due to this it is the premium choice for all demanding aeration applications. For small need of oxygen.
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AeratorsSystem Frings TAVenturi-JetOKI NOPOL DDS
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TASELF ASPIRATING
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Submersible Aerators
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Non-torquing water tight encapsulated cable entry with strain reliefReplaceable bushingWater tight encapsulated squirrel cage NEMA B three phase motor, class F insulation, 155C, thermal sensors in each winding phaseMajor ComponentsAerator TA
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Function of the TASelfaspirating AirWater
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Working side pushes liquidBack side creates vacuum and aspirates airHydraulic PartsAerator TAStandard Material: 304on request: Chrome layer or 316ti
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ImpellerChannel RingDistance of Gap between ImpellerTip and Channel Ring Tip --->0.75 mm
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Impeller ScrewHydraulic PartsAerator TAStandard Material: 304on request: Chrome layer or 316ti
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Hex. ScrewSpring WasherKeyMotor SupportImpellerImpeller WasherImpeller ScrewChannel RingBushingAll parts except bushing
Standard material: Stainless steel AISI 304Chrome layer on request
On request:Stainless steel AISI 316ti
Bushing
Standard material: bronzehardfibre on requestHydraulic PartsAerator TA
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TA 1200M220/4 + M300/4max. w.d. 6.5 m SOTR= 30 kgO2/h
TA 2400M550/4 + M750/4max. w.d. 7.5 m SOTR= 70 kgO2/hTA 1800M370/4 - M550/4max. w.d. 9 m SOTR= 46 kgO2/h
Weight= 130 kgWeight= 90 kgWeight= 235 kgWeight= 360 kgWeight= 465 kgWeight= 785 kgWeight= 915 kgProduct Range Aerator TA/TAK 50 HTAK beginning at 601 improves the oxygen transfer performance up to 25 %TA 901M185/4 + M220/4max. w.d. 8,0 mSOTR= 21 kgO2/hTA 601M110/4 +M150/4max.w.d. 7,0 mSOTR= 14 kgO2/hTA 301M60/4 + M90/4) max. w.d. 6,0 m SOTR=7,5 kgO2/hTA 151M30/4 + M40/4max. w.d. 5,0 mSOTR=4 kgO2/h
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Submersible Aerator TAFlow Pattern in Selfaspirating Operation (radial 360 Discharge)
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TA 601 Starting Phase
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Submersible Aerator TAKwith Channel Extension 1.5 m long
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Cable ClampsCableCableCrane hook eyeletSubmersible Aerator TAInstallation Example
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Minimum Distance from the Wall for TARound TankA/2A/2Diameter A
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MixerA/2Examples for Positioning of AeratorsDonough Shape TankA/2
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Maximum Mixing Zone BExamples for Positioning of AeratorsRectangular TankA/2A/2
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Luft
0000000
60128248370411615930
55.5114247358417599909
51100239340413585.2888
4789228320402567866
4378211300388550838
3768196280368.2530809
3358178260350509777
5.548157.6237.3330487743
66138212310467705
6.56.56.56.56.56.56.5
&L&"ABSNeu,Regular Fett"&20A
H [m]
V [Nm3/h]
TA 2400
TA 1800
TA 1200
TA 901
TA 601
TA 301
TA 151
Submersible Aerators TA Selfaspirating
Performance Data 50 Hz Basin Diameter B Air Volume
Tauchbelfter TAselbstansaugend
Leistungsdaten 50 HzBeckendurchmesser BLuftmenge
TA 76/151
TA 301
TA 601
TA 901
TA 1200
TA 1800
TA 2400
P1 kw
0000000
34.7913.315.825.439
3.35.310.11518.928.643.6
3.65.911.216.72231.848.2
3.86.3911.91824.734.952.8
46.8712.619.0726.9837.757
4.27.2513.22029.0540.361
4.37.6413.620.730.5142.864.55
5.57.81421.331.6644.868.08
6614.321.832.746.571.5
6.56.56.56.56.56.56.5
&L&"ABSNeu,Regular Fett"&20A
P1[kW]
H (m)
TA 2400
TA 1800
TA 1200
TA 901
TA 601
TA 301
TA 151
Submersible Aerators TA Selfaspirating
Performance Data 50 Hz Basin Diameter B Power Consumption
Tauchbelfter TAselbstansaugend
Leistungsdaten 50 HzBeckendurchmesser BLeistungsaufnahme
TA 76/151
TA 301
TA 601
TA 901
TA 1200
TA 1800
TA 2400
OCB
0000000
2.95.31014.916.624.837
3.36.111.616.719.628.242.8
3.76.813.218.522.631.648.5
3.97.31419.62535.153.2
4.17.614.220.1926.73857.5
4.17.714.320.6128.140.161.5
3.97.614.120.628.994264.4
5.57.313.720.629.6543.7366.83
6613.220.1929.8645.469
6.56.56.56.56.56.56.5
&L&"ABSNeu,Regular Fett"&20A
OC/SOTR(KgO2/h)
H (m)
TA 2400
TA 1800
TA 1200
TA 901
TA 601
TA 301
TA 151
Submersible Aerators TA Performance Data 50 Hz (Basin Diameter B) Standard Oxygen Transfer Rate / Water Depth
TA 76/151
TA 301
TA 601
TA 901
TA 1200
TA 1800
TA 2400
Tabelle1
Luftleistung Tauchbelfter TA50 Hz
TypWassertiefe
022.533.544.555.566.5
TA 76/1516055.55147433733
TA 3011281141008978685848
TA 601248247239228211196178157.6138
TA 901370358340320300280260237.3212
TA 1200411417413402388368.2350330310
TA 1800615599585.2567550530509487467
TA 2400930909888866838809777743705
P (kW) Tauchbelfter TA50 Hz
TypWassertiefe
022.533.544.555.566.5
TA 76/15133.33.63.844.24.3
TA 3014.75.35.96.396.877.257.647.8
TA 601910.111.211.912.613.213.61414.3
TA 90113.31516.71819.072020.721.321.8
TA 120015.818.92224.726.9829.0530.5131.6632.7
TA 180025.428.631.834.937.740.342.844.846.5
TA 24003943.648.252.8576164.5568.0871.5
OC10 (kgO2/h)50 Hz
TypWassertiefe
022.533.544.555.566.5
TA 76/1512.93.33.73.94.14.13.9
TA 3015.36.16.87.37.67.77.67.3
TA 6011011.613.21414.214.314.113.713.2
TA 90114.916.718.519.620.1920.6120.620.620.19
TA 120016.619.622.62526.728.128.9929.6529.86
TA 180024.828.231.635.13840.14243.7345.4
TA 24003742.848.553.257.561.564.466.8369
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01020304050607080022,533,544,555,566,5P1 at duty point[kW]H [m]TA 2400TA 1800TA 1200TA 901TA 601TA 301TA 151 Submersible Aerator TAPerformance Data 50 Hz, Power Consumption / Water Depth
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Submersible Aerator TA 151 A40-4 CRStainless Steel AeratorFor example oxydation of iron in water works
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Submersible Aerator TA 601, 6 unitsSBR - Reactors:Industrial WWTP Fruitjuice Factory Krings-Fruchtsaft / Germany
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Submersible Aerator TA 601, 1 unitMixing & Equalization Basin:Industrial WWTP Fruitjuice Factory Bscher Fruchtsfte / Germany
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Submersible Aerator TA 901, 30 unitsMixing & Equalization Basin:Industrial WWTP Pharmaceutical Industry Schering / Germany
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Submersible AeratorTA 2400, 1 unitAdditional Aeration in Existing Systems:Municipal WWTP / Germany
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DDS
NOPOL
DISC DIFFUSER SYSTEM
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DDS BASIC
SAE 4-5 kgO2/hLimitation hard water, CaCO3 must be less then 200 mg/l
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NOPOL HKL 215Porous discContinuos operationFine bubblesNon-return valveQuick connectionCheap4 m3/h /diffusor
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NOPOL KKI 215Membrane discIntermittent operationFine bubblesNon-return valveQuick connection4 m3/h /diffusor
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NOPOL PIK 300Membrane discIntermittent operationFine bubblesNon-return valve ball typeQuick connectionMost cost effective solution8 m3/h /diffusor
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Porous disc KKI HKLEPDM membraneNon return valve rubber, ball SS less pressurePolypropylen PIK 300 body, high temperature 10m3/hPVC HKL KKI body 4m3/hBlue ring self lubricating mtrl, if membrane cloggedpressure increases and membrane goes of and is not brokenWhen stretched normal the membranes are brokenNOPON clean, formic acid 20 mbarimmersed in acid to clean the membranePRK 300, strong bode on KKI 215, old non return valvehigher pressure dropFoot brackets, easy to install fully horizontally1,0 -1,2 m3/m2 to avoid settling
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Quick and easy installationPossible to release the membrane and reinstall, not gluedTested unit from factory2 meters between the bottom bracketsWater drainage system, air lift small hole in the top3x density, water level, air flow
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NOPOL PRK 300Membrane discIntermittent operationFine bubblesNon-return valveQuick connectionCost effective solutionRetrofit of KKI and HKLStronger version for industrial applications
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NOPOL DDS SYSTEMS AND DIFFUSERS
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HKL 215, MKL 215, KKI 215 and PRK 300 diffuser components for 90 mm piping
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Parts of PIK 300 for 90 pipe
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NOPOL CLEAN
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NOPOL CLEANSHOULD START WHEN PRESSURE DROPS 20 mbar
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1.Blower station6.Bottom mounting bracket HPK 21011.Water collection pipe2.Air supply header7.Connection sleeve HSY 90-9012.Purge hose / pipe3.Dropleg8.Diffuser element13.Pipe support4. Zone header 9.Diffuser (here KKI 215)14.Expansion joint5.Bottom mounting bracket TPK 15010.Drainage coupling VPL 90 Typical bottom-mounted fine-bubble aeration systemZone headerDiffuserBottom bracketDrainage couplingConnecting sleeveWater collection pipeDiffuser element
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HPK 210
1.StrapHPA 2102.Pipe holderHKI 2103.Extension sleeveHJA 2104.FootHTU 2105.Hex screwM10 x 206.WasherKL 11/287.Drop-in anchorLAH 10TPK 125350
1.Threaded rodM122.Hex nutM123.Holder1253504.WasherM125.Drop-in anchorLAH 12
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HPA 210Strap
HKI 210Pipe holder
HJA 210Extension sleeve
M10 x 20Hex screw
KL 11/28Washer
HTU 210Foot
LAH 10Drop-in anchor
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WEDGE ATTACHMENT
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1. Lock ringLUR 902. GasketHLT 903. BodyHSY 90R4. Screw3,5 x 35 Connecting sleeve
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CONDENSATE REMOVAL Due to the pressure in the air main, moisture in the air and the cooling effect of the effluent, condensation will form in the pipe work
Drain this water back into the basin by opening the relevant valve
Drainage can vary from every day to once per month. Monitor the collection of water over the initial operating period
The water should be crystal clear
Dirty water means a problem with the system installation
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Helsinki Viikinmaki Central Treatment Plant, Finland. 20,000 KKI 215 membrane disc diffusers. Population equivalent 750,000. Water depth 12m
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EFFECT OF DIFFUSER DENSITY ON SOTE AND ENERGY CONSUMPTION3.6kgO2/kWh4.4kgO2/kWh
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AIRFLOW CONTROL Air main is tapered so that the correct amounts of air go to the relevant zone
The air taper should deliver the correct amount of oxygen to each zone without valve control
Pressure losses over the diffuser membrane should be the same therefore no throttling will be required
Over time some variation in the pressure loss may occur thus resulting in the need for throttling
Throttle if the zone looks inactive
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IS THIS OK?
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GENERAL TIPS BE GENTLE!
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GENERAL TIPSMONITOR THE BUBBLE PATTERN
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INSTALLATION EXAMPLES
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Optimal installation?
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NOPOL AERATOR MIXER
OKI
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WHY OKI AERATORS???
Demanding installationsMixer and aeratorNon cloggingDeep tanksEasy to installCheap to installAPLHA value 30% more then DDS, slightly smaller SOTE them DDSSAE 3,5-4,5kgO2/h
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NOPOL O.K.I SUBMERGED AERATOR MIXER
Back pressure to blower typically 1m water head lower compared to fine bubble disc or tube systems
Typical industrial applications- Pulp and paper mills- Tanneries- Dairy waste water- Refineries- Chemical waste water- Textile industry
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NOPOL O.K.I. 1000 SUMERGEDAERATOR MIXER
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PRODUCT RANGE FOR NOPOL O.K.I. 1000
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NOPOL O.K.I. 1000 SUBMERGED AERATOR MIXERSUBMERSIBLE MOTOR AND GEAR BOXSTATORROTORFRAME
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NOPOL O.K.I AERATOR MIXER WORKING PRINCIPLE2 different type OKI 100 & 1000
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WHERE TO INSTALL OKI?
IN THE CENTER OF THE TANK
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NOPOL O.K.I AERATOR MIXER INSTALLATION PRINCIPLE
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NOPOL O.K.I INSTALLATION
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NOPOL O.K.I INSTALLATION
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NOPOL O.K.I INSTALLATION
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NOPOL O.K.I INSTALLATION
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Cavendish Farms Inc., Canada. Food Industry equipped with 10 NOPOL O.K.I. aerator mixers
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Enso Oyj, Imatra, Finland, pulp and paper mill with 42 NOPOL O.K.I. Aerator mixers
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Prague Central WWTP, Czech Republic Return Sludge aeration in 14m water depth with 18 NOPOL O.K.I. Aerator mixers.
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Phoenix Pulp & Paper, Thailand, equipped with 10 NOPOL O.K.I aerator mixer units
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NOPOL AERATION SYSTEMS
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QM Aeration dimensioning
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HST HIGH SPEED TECHNOLOGY
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HST Integral Turbo-CompressorComplete design: compressor, frequency converter and local control all in oneMagnetic bearings: no lubrication, no mechanical touch, total vibration free operationBuilt-in variable speed controlIntegrated turbo-rotor-cooling fan is the only rotating partNoise Enclosure as standard
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High Speed Technology
_1030530066.doc
INU
AMB
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High Speed TechnologySingle stage radial turbo-compressorContact-less and lubrication free magnetic bearing system, no friction lossesMassive rotor induction motorVariable rotation speed controlIntegrated frequency converter with control software
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Minimize civil engineering costsSmall footprintLight weightLow noise - no special insulation neededNo vibration - no foundation base-plate requiredNo need for crane, fork-lift truck is sufficientInstallation in 60 minutes (HST record!)Ready assembled and tested complete unit
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Minimize operation costsLow energy consumptionNo maintenance costsInbuilt self diagnostic protection and monitoring systemNo lubrication needed, no external cooling, no cooling water neededOptimization of operation at all timesSoft start function as standard
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Superior TechnologyRotation speed control: no mechanical control organs as variable diffusers or inlet guide vanes, no risk of components being blockedRotation speed control: keeps high efficiency even by partial loadOnly one rotating componentNo auxiliary motors/equipmentAutomatic operation control50% lighter and smaller size than competitorsParallel operation always at optimum power
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Rotation speed control p
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Standard ProductTraditional way: every machine is specified to one single process impeller height, diameter and blade angledesign of spiral housinggear box transmission ratioHST way: every machine is a standard unitevery unit is factory tested and ready for installation50% shorter delivery timestandard spare parts, if needed
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Exceptional ConditionsClogging of diffuser membranes by calcium in slots (independent of manufacturer)Excessive pressure ratio or intake temperatureTraditional compressors: no operation possible, break-down of treatment processHST Integral: automatic adjustment to new conditions by higher rotation speed - guaranteed air delivery
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Principle of Magnetic Bearings
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Dimensions
Sheet1
S2500S6000S9000
Length L (cm)142178-199204
Width W (cm)93135135
Height H (cm)189189200
Weight (kg)7501350-15001700
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Principle of Magnetic BearingsActive magnetic bearing ( AMB ) consist of two attracting electromagnets, a position sensor and a controller. The electromagnets introduce forces acting on a ferromagnetic rotor pulling it to the opposite directions. Deviating the rotor from the central position towards one magnet increases the force pulling the rotor towards the deviation. Thus the rotor position is measured and the controller decreases the current in the magnet causing the pulling force in the direction of deviation and increases the current in the opposite electromagnet. In an actual AMB system, to levitate a rotor a five axis bearing system is used. Each axis, or channel, has its two electromagnets and a position sensor. Position controller takes care of all the channels keeping the rotor fully levitating.
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HST ReferencesMB Joutseno Pulp, Finland 199610 x 6000-2-H-6, 60000 m3/hEspoo City, Finland 19977 x 6000-1-L-4, 48000 m3/hVsters City, Sweden 19984 x S6000-1-L-4, 25000 m3/hYoungjong Airport, South Korea 19994 x S6000-1-H-4, 25000 m3/hStockholm City, Sweden 20006 x S9000-1-L-4, 56000 m3/hKirin Beer, Japan 20004 x S6000-1-L-4, 26500 m3/h Baden City, Switzerland 20004 x S6000-1-L-4, 25000 m3/h
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HST InstallationVsters, Sweden
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HST Installation Lingen, Germany
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Operation Range S2500-12500-1-Hca. 1300-3100 m3/h < 8 m2500-1-Lca. 1100-3200 m3/h < 6 m
2500-1
46
57
68
68
68
68
57
46
46
46
2500-1-L
2500-1-H
Flow[m/h]
Pressure Rise [mH2O]
2500-2
810
911
1012
1012
1012
1012
911
810
810
90010
2500-2-L
2500-2-H
Flow[m/h]
Pressure Rise [mH2O]
Flow Rate Area
Sheet1
2500-1-L2500-1-H
456678
min89010531208120813001400
max336835403250374534603220
456678
89010531208120813001400
6688
1208325014003220
654876
325035403368322034603745
4466
336889037451208
2500-2-L2500-2-H
8910101112
min9009501037103711401255
max248024302355255025452480
8910101112
9009501037103711401255
10101212
1037235512552480
1098121110
235524302480248025452550
881010
248090025501037
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Operation Range S2500-22500-2-Hca. 1300-2500 m3/h < 12 m2500-2-Lca. 1100-2500 m3/h < 10 m
2500-1
46
57
68
68
68
68
57
46
46
46
2500-1-L
2500-1-H
Flow[m/h]
Pressure Rise [mH2O]
Flow Rate Area
2500-2
810
911
1012
1012
1012
1012
911
810
810
90010
2500-2-L
2500-2-H
Flow[m/h]
Pressure Rise [mH2O]
Sheet1
2500-1-L2500-1-H
456678
min89010531208120813001400
max336835403250374534603220
456678
89010531208120813001400
6688
1208325014003220
654876
325035403368322034603745
4466
336889037451208
2500-2-L2500-2-H
8910101112
min9009501037103711401255
max248024302355255025452480
8910101112
9009501037103711401255
10101212
1037235512552480
1098121110
235524302480248025452550
881010
248090025501037
-
Operation Range S6000-16000-1-Hca. 2700-6500 m3/h < 8 m6000-1-Lca. 2600-7000 m3/h < 6 m
6000-1
46
57
68
68
68
68
57
46
46
46
6000-1-L
6000-1-H
Flow[m/h]
Pressure Rise [mH2O]
6000-2
810
911
1012
1012
1012
1012
911
810
810
294010
6000-2-L
6000-2-H
Flow[m/h]
Pressure Rise [mH2O]
Flow Rate Area
Sheet1
6000-1-L6000-1-H
456678
min230026102850223026002910
max670070357055661568156600
456678
230026102850223026002910
6688
2850705529106600
654876
705570356700660068156615
4466
6700230066152230
60900-2-L6000-2-H
8910101112
min294031903410341036403850
max689069656950695066006320
8910101112
294031903410341036403850
10101212
3410695038506320
1098121110
695069656890632066006950
881010
6890294069503410
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Operation Range S6000-26000-2-Hca. 3700-6500 m3/h < 12 m6000-2-Lca. 3300-6700 m3/h < 10 m
6000-1
46
57
68
68
68
68
57
46
46
46
6000-1-L
6000-1-H
Flow[m/h]
Pressure Rise [mH2O]
Flow Rate Area
6000-2
810
911
1012
1012
1012
1012
911
810
810
294010
6000-2-L
6000-2-H
Flow[m/h]
Pressure Rise [mH2O]
Sheet1
6000-1-L6000-1-H
456678
min230026102850223026002910
max670070357055661568156600
456678
230026102850223026002910
6688
2850705529106600
654876
705570356700660068156615
4466
6700230066152230
60900-2-L6000-2-H
8910101112
min294031903410341036403850
max689069656950695066006320
8910101112
294031903410341036403850
10101212
3410695038506320
1098121110
695069656890632066006950
881010
6890294069503410
-
Operation Range S9000-19000-1-Hca. 4100-9200 m3/h < 8 m9000-1-Lca. 3700-9200 m3/h < 6 m
9000-1
46
57
68
68
68
68
57
46
46
46
9000-1-L
9000-1-H
Flow[m/h]
Pressure Rise [mH2O]
Sheet1
9000-1-L9000-1-H
456678
min360037003800380040004250
max920094008900990093008800
456678
360037003800380040004250
6688
3800890042508800
654876
890094009200880093009900
4466
9200360099003800