Sludge Thickening

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Sludge Thickening Dewatering
Marius Botha
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Overview

• Bateman
• Bellmer
• Products
• Turbodrain as a thickener
• Winklepress
• Cascade
• Case Studies

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Bateman Engineering Globally

• Offices in India, South Africa, Australia,
  Canada, Switzerland, Netherlands, Russia
• Delkor offices across the globe

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Group Structure
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Market leader with more than 4.500 references in
the field of Separation Technology
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Overview Products
Machines TurboDrainTM WinklePressTM
Cascade STM

• dewatering screen
• for sludge thickening
• TDC, TDH, TDH-L

• belt press for sludge dewatering
• WPN G, WPN K, WPN I, WPH

WinklePressTM
TurboDrainTM

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The BELLMER TurboDrain
TDH-L
TDH
TD Green
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TURBODRAIN
Odout hood(Optional)
Revolving belt
Chicanes
Ramp
Thickened sludge discharge
Drive
Discharge Chute (Optional)
Feed for flocculated suspension
Patented feed and maturing chamber
Clear Filtrate Spray Water
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TURBODRAIN versus final clarification or DAF
Sometimes a picture is worth more than 1000 words
Final clarification or DAF
40 kW
8 kW
TDN building
Volume 9000 m³
Volume 180 m³
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TURBODRAIN EFFICIENCY
Practically solids-free filtrate
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WHITE WATER FILTRATION REFERENCES

• Polyelectroylte consumption (g/kg DS)

CUSTOMER Machine Throughput of Plant Dry Solids loading Power Consumption
    m3/h kg/h kW (total)
         
Technocell Dekor (Gunzach) 2 off TDR 3 120 975 5.2
         
ITC Ltd (India) 1 off TDR 4 150 350 4.4
         
Technocell Dekor (Canada) 3 off TDR 5 180 11250 18
         
Technocell Dekor (Titisee-Neustadt) 2 off TDR 3 1 TDR 4 210 5250 8.9
         
Cartiere di Guarcino (Italy) 2 off TDR 4 280 2240 8.8
Polyelectrolyte consumption (g/kg DS) 1.5 - 3

Filtrate Quality (mg/l) lt50
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The BELLMER WinklePress
WPN-I
WPH
WPN-G
WPN-K
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BELLMER Winklepress WPN-Kunique dewatering
sections
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BELLMER Cascade S
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BELLMER Cascade S
Turbodrain
1. sludge feed 2. filtrate outlet 3. waste
water outlet
Turbodrain reduces the hydraulic throughput
transfer chute
2.
3.
1.
spreader box
Winklepress WPN
Winklepress dewaters the sludge to highest dry
solids
dropping of thedewatered sludge
filtrate
waste water
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Comparison WPN vs. Centrifuge

• Cake dry solids content 28
• Polymer consumption (6-8 kg/t DS)
• Low energy comsumption (4-5 kW)
• Low maintenance costs
• Clear filtrate 500 mg/l

• Cake dry solids content 28
• Polymer consumption (13-15 kg/t DS)
• Low energy comsumption (40-50 kW)
• High maintenance costs - fast running machine
• Dirty filtrate 2000 mg/l

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Savings by Using a Winklepress instead of a
Centrifuge
Operation costs Filtrate quality 1500
mg/l Energy - 400.000 kWh/a Polymer
- 7.800 kg/a Costs - 34.000 /a
Costs - 60.000 /a Costs - 15.600
/a (for 0,15 /kWh) (for
2,0 /kg Polymer and 1.300 t/a biosludge)
Location Centrifuge EUR/t Winklepress EUR/t Difference EUR/t
Utrecht 386 327 59
Nieuwegein 386 345 41
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Conclusion

• Power Consumption
• TurboDrain vs DAF
• 8kW 40kW
• Saving 80
• WinklePress vs Centrifuge
• 5kW 50kW
• Saving 90

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Reference Metsä Tissue RaubachSavings
Tissue production 50.000 t/a Increase of the end
dry content from 36 to 60 !
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Mobile Testing Unit
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