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Manufacturers of Disk or Diaphragm pumps • Penn Valley • SSP Alfa Laval • Dorr Oliver ODS • Carter Pumps • Gorman-Rupp
Operating Principle The Double Disc is based on a “Free Diaphragm” technology, the pump utilizes a unique principle of operation where the discs perform the duties of both diaphragm and valve. Suction Cycle Discharge Cycle
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Wastewater Treatment Techniques for
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…is like selecting the correct go
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What’s your application? − Retu
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Sludge video #2
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Sludge video #4
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Viscosity • Viscosity, property o
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NEWTONIAN • Viscosity decreases w
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Municipal wastewater sludge • Mun
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What is the Rheology of the sludge?
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Laboratory & Field test results •
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Things we learned: • When designi
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• Hydraulic gradient • Pressure
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TR 185 h where, 2 V F K 2 g K= po
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Flygt’s Sludge Module within FLYP
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Types of pumps used for “Thickene
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What’s really important to WWTP?
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PD versus Centrifugal pumps • Pos
Page 35 and 36: Progressing Cavity Pumps
Page 37 and 38: Progressive Cavity Pumps A single h
Page 39 and 40: Failure points…
Page 41 and 42: Manufacturer’s of Rotary Lobe pum
Page 43 and 44: Failures…
Page 45 and 46: NON-CLOG PRODUCT FEATURES Tangentia
Page 47 and 48: Non-clog Pumps
Page 49 and 50: RECESSED IMPELLER or Vortex Spheric
Page 51 and 52: Centrifugal Screw Pump Vertical lea
Page 53 and 54: WEAR: Cast iron impeller & insert r
Page 55 and 56: FLYGT “Chopper” pumps Advantage
Page 57 and 58: Let’s talk clogging…
Page 59 and 60: …or these modern day clogging hea
Page 61 and 62: JEA - Jacksonville, Florida
Page 63 and 64: Oak Ridge, TN
Page 65 and 66: Summary If it flows, use gravity.
Page 68 and 69: • What’s really important to th
Page 70 and 71: But to properly select a pump, you
Page 72 and 73: Types of pumps used for sludge Plun
Page 74 and 75: PD vs. Centrifugal pumps • Positi
Page 76 and 77: Competing Technologies
Page 78 and 79: How does a Plunger pump work?
Page 80 and 81: Easy to Maintain????
Page 82 and 83: Advantages • Positive displacemen
Page 84 and 85: New TWAS Pump • NT3102 - 5hp was
Page 88 and 89: Operation sequence of Diaphragm pum
Page 90 and 91: Do It Yourself with genuine Double
Page 92 and 93: Midland, Texas - Diaphragm pump •
Page 94 and 95: Manufacturers of “PC” pumps •
Page 96 and 97: Advantages •Pressures to 400 psig
Page 98 and 99: 6,000 5,000 4,000 3,000 2,000 1,000
Page 100 and 101: Digester Recirculation • Digester
Page 102 and 103: Rotary Lobe Pumps
Page 104 and 105: ROTARY LOBE Advantages •Metered f
Page 106 and 107: Replace RLP with Npumps • Custome
Page 108 and 109: Screw Conveyor Pumps
Page 110 and 111: Screw Conveyor Pump Manufacturers
Page 112 and 113: Screw Conveyor Pumps
Page 114 and 115: Screw Pump Replacement O’Fallon,
Page 117 and 118: Cutter Pumps • Vaughan • Landia
Page 119 and 120: Competitor’s pump
Page 121 and 122: Weakness as perceived by the compet
Page 123 and 124: Advantages • Heavy duty design
Page 125 and 126: Flygt N-Pump Advantages •Solids H
Page 127 and 128: Vaughan Chopper Replacement • Req
Page 129 and 130: MACERATORS
Page 131 and 132: …because they cannot handle rags!
Page 133 and 134: Npumps do not require a Macerator!
Page 135 and 136: For ALL Treatment Plant Pump Activi
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THANK YOU! Paul A. Nelsen Market Ma
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