BHS-Sonthofen GmbH Thin-Cake Solid-Liquid Separation, Cake Washing & Drying Technologies SOLID- LIQUID SEPARATION SYSTEMS

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1 BHS-Sonthofen GmbH Thin-Cake Solid-Liquid Separation, Cake Washing & Drying Technologies SOLID- LIQUID SEPARATION SYSTEMS Barry A. Perlmutter President & Managing Director

2 BHS-Sonthofen GmbH Seminar Outline BHS Introduction & BHS Testing Clarification-Combination Filtration Candle Filter & Pressure Plate Filter Technology Concentrating Candle Filters Vacuum Belt Filters - Concentrating Candle Filters Rotary Pressure Filters Pharma Autopress Summary

3 BHS-Sonthofen Location Hamburg Rostock Hannover Berlin D Bonn Leipzig Frankfurt Stuttgart Nurnberg Zurich Bern Sonthofen Munich Vienna Salzburg Innsbruck Graz CH A

4 BHS-Sonthofen GmbH Divisions Mixing Technology Recycling Technology Crushing Technology Filtration Technology

5 BHS-Filtration New Location BHS-Filtration Inc. New Location 14,000 ft 2 Facility of Office & Warehouse $1.3 million Investment

6 BHS Technology Portfolio Rotary Pressure Filter Indexing Belt Filter Rubber Belt Filter Candle Filter Pressure Plate Filter Autopress

7 BHS Lab Testing

8 BHS Lab Testing: Pressure or Vacuum

9 BHS Lab Testing: Filter Aids

10 BHS Lab Testing: Cake Structure

11 BHS Batch/Continuous Filtration and Clarification for Low Solids Concentrations Clarification and Recovery Applications with the BHS Candle and Pressure Plate Filters

12 BHS Batch/Continuous Filtration and Clarification for Low Solids Concentrations Applications include water & amine scrubbers, chlor-alkali, chemical, biodiesel, gasification / grey water, activated carbon, catalysts, heavy metals, PTA fines and pharmaceutical Replaces filter presses, manual plate filters, bag, cartridge, metal filters and centrifuges Filtration to 0.5 um, cake washing and drying Precoat of the filter media is possible, if required Complete containment and Automatic discharge

13 BHS Batch/Continuous Filtration and Clarification for Low Solids Concentrations Candle Filter: Vertical Cake Structure Cake discharge by gas expansion of the filter media Pressure Plate Filter: Horizontal Cake Structure Cake discharge by plate vibration & gas-assist No spinning plates-eliminates solids sticking No rotating or mechanical seals-eliminates leakage

14 BHS Concentrating Candle Filters & Pressure Plate Filter - Feed Rate: 260 gpm at 600 ppm solids - Result: 2 x 20 m 2 Concentrating Candle Filters 1 x Pressure Plate Filter (4 m 2 ) For Filtration, Cake Washing & Drying

15 BHS Concentrating Candle Filters & Pressure Plate Filter

16 BHS Concentrating Candle Filters & Pressure Plate Filter

17 BHS Candle Filter Technology

18 BHS Candle Filter Technology

19 BHS Candle Filter Technology

20 BHS Pressure Plate Filter

21 BHS Pressure Plate Filter

22 BHS Pressure Plate Filter

23 Concentrating Candle Filters for Grey Water Fines Slurry at 200 PPM BHS Pocket Leaf Filter Clarified Water (0.5 um)

24 BHS Candle Filter System- Slurry Discharge 3 x KN Parallel operation: 2 online 1 offline 6 hr cycle per filter Slurry Feed 800 gpm 200 ppm solids Hold Tank or Pump 800 gpm Clear Filtrate 0.5 micron particle retention Sludge Discharge Once per 3 hours 300 gallons; 10% solids

25 BHS Slurry Discharge Candle Filter-Complete System

26 BHS Candle Filters with Activated Carbon

27 BHS Turnkey Project with Belt Filters, Candle Filters, Pumps. Tanks, & PLC Control

28 BHS 73.5 m² Belt Filter and Four (4) Candle Filters KF & KF 19-10

29 BHS Vacuum Belt Filter Technolgies Continuous-Indexing & Rubber Belt Filter Continuous-Indexing Rubber Belt Filter - Continuous slurry feed - Indexing belt movement - Up to 75 m² filter area - Electric or pneumatic drive - Dewatering, cake washing, steaming, and pressing - For small to medium size throughputs - No sealing media (water, air) - Continuous slurry feed - Continuous belt movement - Up to 200 m² filter area - Electric drive - Dewatering, cake washing, and steaming - Higher throughput per m² for high efficient filters - No water or air required for belt support

30 BHS Continuous- Indexing Vacuum Belt Filter

31 Process Operations Continuous Process Operations Vacuum Filtration Cake Thickness: mm Cake Washing: Co-current and Counter-Current Drying: Vacuum, Convection, Pressing and Steaming

32 Schematic Presentation Belt movement by pneumatic cylinders No motors No rubber belts No moving trays No internal rails or hoses

33 Main Components Fixed Vacuum Trays & Filtrate Outlets Suspension feed Cake Washing Cake discharge Cake Drying Filter cloth wash Belt Tracking Pressure or Dust Containment

34 Vacuum Tray The vacuum trays are fixed in place Each tray has a filtrate outlet Tray is profiled for filter media sealing Stainless steel, alloys or synthetic materials Filtrate pipes can be heat-traced /insulated to eliminate precipitation

35 Suspension Feed: Fixed or Oscillating -

36 Cake Wash

37 Cake Drying Vacuum Drying Convection Drying: Hot or Ambient Temperature Air or Gas Steam Blowing Cake Squeezing / Pressing Heated Trays Combination of Techniques

38 Pressing and Blowing Device

39 Cake Discharge Cake discharge from a 12 m 2 belt filter: 10 tons/hour of solids Cake Depth = 50 mm Moisture < 10 % Chlorides < 100 ppm from an initial level of 20,000 ppm

40 High Solids Slurries (Up to 55%) BHS Continuous Rotary Pressure Filters Chemical: Agricultural, Specialty, Pigments, Starch, Terephthalic Acids, Polymers, etc.

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42 ROTARY PRESSURE FILTER

43 ROTARY PRESSURE FILTER Continuous Pressure Filtration Enclosed and Pressure Tight Cake Washing & Solvent Exchange Steaming & Drying Atmospheric/Pressurized Cake Discharge Applications: Starch, HEC/HC/MC, Proteins, Cellulose Acetates, Coffee extracts and similar

44 Rotary Pressure Filter Operation Wash Inlet Outlets & Vents Drying Gas Inlet Sealing Element

45 Rotary Pressure Filter Operation

46 Rotary Pressure Filter Drum

47 Rotary Pressure Filter Drum Cell with Synthetic Cloth Filter Media

48 Cell Insert

49 AUTOPRESS BHS Autopress (Contained Filter Press) Pharmaceutical Applications for Replacing Centrifuges and Nutsche Filter-Dryers Batch Pressure Filtration Cake Washing (forward & reverse) Drying (Blowing, Vacuum, & Compression) Automatic Cake Discharge

50 AUTOPRESS AP 300 Multipurpose Pilot Plant

51 AUTOPRESS

52 AUTOPRESS

53 Autopress Riboflavin Test Before CIP Operation

54 Autopress Riboflavin Test After CIP Operation

55 Summary of BHS Turnkey Projects Description of Installation Scope Engineering Process Design BHS Technologies PLC Controls Tanks, Pumps, Instrumentation Full skid packages Commissioning Performance Guarantee & Testing

56 BHS-Sonthofen GmbH Thin-Cake Solid-Liquid Separation, Cake Washing & Drying Technologies THANK YOU!