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Screw Conveyor Pump Manufacturers • Siemens (US Filter) • Lakeside Equipment Company • Spaans Babcock • BioSec Enviro • Martin Sprocket & Gear, Inc. • Torqueflow Sydex • Schreiber LLC. • Arlat Technology - A Div. of Price Schonstrom Inc. • Landustrie Sneek BV (Landy Screw Pumps) • EPIC International • Ritz-Atro GmbH • SPECO Division of WAM S.p.A.
Advantages • Rugged, Heavy-duty • Non-Clogging design • Lower cost concrete trough • Low speed • Low noise Screw Conveyor Pumps Disadvantages • Huge Capital cost • Purchase price (3-5 x’s) • Installation cost (3-5 x’s) • Requires a lot of space • Huge grease lubrication costs (Upwards of $70,000/ yr.) • 3-4 days to remove & service • Highly inefficient when flighting to concrete trough wears
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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
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Progressing Cavity Pumps
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Progressive Cavity Pumps A single h
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Failure points…
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Manufacturer’s of Rotary Lobe pum
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Failures…
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NON-CLOG PRODUCT FEATURES Tangentia
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Non-clog Pumps
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RECESSED IMPELLER or Vortex Spheric
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Centrifugal Screw Pump Vertical lea
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WEAR: Cast iron impeller & insert r
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FLYGT “Chopper” pumps Advantage
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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 86 and 87: Manufacturers of Disk or Diaphragm
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 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
Page 137: THANK YOU! Paul A. Nelsen Market Ma
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