Sludge Thickening & Dewatering Marius Botha

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

Bateman Engineering Globally Offices in: India, South Africa, Australia, Canada, Switzerland, Netherlands, Russia Delkor offices across the globe

Group Structure

Market leader with more than 4 Market leader with more than 4.500 references in the field of Separation Technology

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 TurboDrainTM & WinklePressTM

The BELLMER TurboDrain ™ TDH-L TDH TD Green

TURBODRAIN™ Revolving belt Chicanes Odout hood (Optional) Ramp Thickened sludge discharge Drive Discharge Chute (Optional) Patented feed and maturing chamber Feed for flocculated suspension Clear Filtrate Spray Water

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

TURBODRAIN: EFFICIENCY Practically solids-free filtrate

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) <50

The BELLMER WinklePress™ WPN-I WPH WPN-G WPN-K

BELLMER Winklepress WPN-K unique dewatering sections

BELLMER Cascade S

BELLMER Cascade S Turbodrain reduces the hydraulic throughput 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 the dewatered sludge filtrate waste water

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

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 Difference Utrecht 386 327 59 Nieuwegein 345 41

Conclusion Saving 80% Saving 90% Power Consumption: TurboDrain™ vs DAF ± 8kW ± 40kW Saving 80% WinklePress™ vs Centrifuge ± 5kW ± 50kW Saving 90%

Reference Metsä Tissue Raubach Savings Tissue production 50.000 t/a Increase of the end dry content from 36 % to 60 % ! Solids -24.000 t/a Clean Water -24.000 m³/a CO2 -160 t/a Costs -720.000 €/a Water for 500 people/a (for 200km)

Mobile Testing Unit

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