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The Advances in and the Economics of High Pressure Reverse Osmosis for Product Concentration Applications in the Food Industry (Presented at the 2006 IFT) PowerPoint PPT Presentation


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The Advances in and the Economics of High Pressure Reverse Osmosis for Product Concentration Applications in the Food Industry (Presented at the 2006 IFT). Overview of Presentation. Osmotic Pressure Standard Pressure Reverse Osmosis High Pressure Reverse Osmosis

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The Advances in and the Economics of High Pressure Reverse Osmosis for Product Concentration Applications in the Food Industry (Presented at the 2006 IFT)

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The Advances in

and the Economics of High Pressure Reverse Osmosis for Product Concentration Applications in the Food Industry

(Presented at the 2006 IFT)


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Overview of Presentation

  • Osmotic Pressure

  • Standard Pressure Reverse Osmosis

  • High Pressure Reverse Osmosis

  • Case Study: Concentration of Sweet Whey

  • Applications

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Osmotic Pressure

  • The pressure exerted by the flow of water through a semi-permeable membrane separating two solutions with different solute concentrations

  • P = MRT for dilution solutions

    • M = concentration

    • R = gas constant

    • T = absolute temperature

Component MW 2% 5% 10%15%20%

Lactose 3422463134215320

Glucose 18048127264405588

NaCl 58.5250620

MgSO4 120.465168352615

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Standard Pressure Reverse Osmosis

Standard Pressure Reverse OsmosisOperating Parameters and Capabilities

  • Membranes:spiral-wound TFC

  • Systems:continuous w/ recirculation loops

  • Operating Parameters

    • Pressure < 600 psig

    • Temperature< 50 C (standard)

  • Capabilities

    • Concentrate products to < 20% solids (typical)

  • Commercial Applications

    • Widely used in food, dairy, beverage industries

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High Pressure Reverse Osmosis

High Pressure Reverse OsmosisOperating Parameters and Capabilities

  • Membranes:spiral-wound TFC

  • Systems:continuous w/ recirculation loops

  • Operating Parameters

    • Pressure 600 - 1000 psig

    • Temperature0-50 C (standard)

  • Capabilities

    • Concentrate products up to 25% - 35% solids (typical)

    • Hot water sanitizable (some elements)

  • Equipment Requirements

    • More limited selection of components

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High Pressure Reverse Osmosis

High Pressure Reverse OsmosisOperating Parameters and Capabilities

  • Process

    • Achieve commercially viable solids concentrations

    • Improved product quality

      • No thermal degradation of product quality

  • Economic

    • Reduced transportation costs

    • Better capital and operating costs than other technologies

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Case Study: Sweet Whey Concentration

Case Study: Sweet Whey ConcentrationOverview

  • Client interested in concentrating sweet whey with high pressure RO to reduce transportation costs

  • Feed is sweet whey pre-concentrated with RO

  • Innovation = USDA and 3A approval

  • Alternative technologies include:

    • use of standard pressure RO and NF

      • NF generates a salt laden permeate

      • Lower total solids concentrate

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Case Study: Sweet Whey Concentration

Case Study: Sweet Whey ConcentrationFlux Data

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Case Study: Sweet Whey Concentration

Case Study: Sweet Whey ConcentrationSweet Whey Process Stream Compositions

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Case Study: Sweet Whey Concentration

Case Study: Sweet Whey ConcentrationApplication Information

  • Operating Specifications

    • Feed Solids19% Total Solids

    • Water Removal Rate12 gpm (>5M Gal/Yr)

    • Concentrate Solids28% Total Solids

  • Operating Basis

    • Days per Year365

    • Production Mode20 hours / day

    • CIP Mode4 hours / day

  • System – GEA’s Scope of Supply

    • All components, including PLC and MCC

    • All engineering and fabrication services

    • Excludes installation services

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Case Study: Sweet Whey Concentration

Case Study: Sweet Whey ConcentrationProject Costs and ROI

  • Capital Costs (including install)~$500,000

  • Operating Costs~$200,000 / year

    • Includes costs for: labor, membrane replacement, CIP chemicals, power, steam, CIP water, cooling water

    • Operating Cost < $0.04 / gallon of water removed

  • Transportation requires >1,000 fewer tank trucks

    • Basis is 5,000 gallons / tanker

    • Shipping costs per tanker~$1,000

    • Cost Savings per year>$1,000,000

  • ROI breakeven point~ 9 months

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High Pressure Reverse Osmosis

High Pressure Reverse OsmosisApplications (spiral-wound membranes)

  • Concentration of whey products

    • Sweet whey

    • Sweet whey UF permeate

  • Concentration of clarified fruit juices

  • Concentration of clarified vegetable juices

  • Concentration of clarified polysaccharide, sugar and sweetener products

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Case Study: Sweet Whey Concentration

Visit GEA Filtration at the IFT Expo

Booth 2551

Website: www.geafiltration.com

Email: [email protected]

Phone: 715-386-9371

Thank You!

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