Comparing Membrane Bioreactors & the Sequencing Batch Reactor

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Comparing Membrane Bioreactors & the Sequencing Batch Reactor for Food and Beverage Applications. Free Research Paper.

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Comparing Membrane Bioreactors & the Sequencing Batch Reactor

  1. 1. Membrane Bioreactors & the Sequencing Batch Reactor www.LayneWater.com The Evolution of Wastewater Treatment in the Food and Beverage Industry
  2. 2. Food & Beverage Wastewater Treatment is Challenging! <ul><li>Changing streams which are </li></ul><ul><ul><li>Very Complex </li></ul></ul><ul><ul><li>Highly Variable </li></ul></ul><ul><li>Into one stream which </li></ul><ul><ul><li>Meets all Regulations </li></ul></ul><ul><ul><li>Meets NPDES Requirements or </li></ul></ul><ul><ul><li>Meets Requirements for in-plant reuse </li></ul></ul>www.LayneWater.com
  3. 3. Quick Review: 5 Stages of Wastewater Treatment <ul><li>Pretreatment </li></ul><ul><li>Primary </li></ul><ul><li>Secondary </li></ul><ul><li>Tertiary or Advanced </li></ul><ul><li>Disinfection </li></ul>www.LayneWater.com
  4. 4. Typical wastewater treatment schematic www.LayneWater.com
  5. 5. Secondary Wastewater Treatment <ul><li>May Be Most Important of 5 Stages of WWT </li></ul><ul><li>High & Varying Levels of Soluble & Suspended Organic Matter </li></ul><ul><li>Highly Complex Operation Requiring Either </li></ul><ul><ul><li>Experience & Expertise or </li></ul></ul><ul><ul><li>Robust System Design and Optimized System Maintenance </li></ul></ul>www.LayneWater.com
  6. 6. Conventional Activated Sludge Process - CASP <ul><li>First major development in secondary WWT </li></ul><ul><li>England, 1913 </li></ul><ul><li>Combines </li></ul><ul><ul><li>Sewage </li></ul></ul><ul><ul><li>Concentrated Mass of Microbes </li></ul></ul><ul><ul><li>High Levels Dissolved Oxygen </li></ul></ul><ul><li>To promote the consumption of organic content </li></ul>www.LayneWater.com
  7. 7. Conventional Activated Sludge Process - CASP <ul><li>Still Widely Used </li></ul><ul><li>Large Footprint </li></ul><ul><li>High Capital Costs </li></ul><ul><li>Many Different Variations </li></ul><ul><li>Loss of Operational Control </li></ul><ul><ul><ul><li>L oss of the Activated Sludge </li></ul></ul></ul><ul><ul><ul><li>Decimation of the Microorganism Population </li></ul></ul></ul><ul><ul><ul><li>Non-Compliance </li></ul></ul></ul>www.LayneWater.com
  8. 8. Membrane Bioreactor – MBR and Sequencing Batch Reactor - SBR <ul><li>Developed in Response to CASP problems </li></ul><ul><li>Widespread in Food and Beverage Industry </li></ul><ul><ul><li>Typical Wastewater Composition </li></ul></ul><ul><ul><li>Tightening of Discharge Regulations </li></ul></ul><ul><ul><li>Water Shortages </li></ul></ul><ul><ul><li>Better Suited for Water Reuse or Recycle </li></ul></ul>www.LayneWater.com
  9. 9. Membrane Bioreactor – MBR <ul><li>Combination of Activated Sludge Treatment and </li></ul><ul><li>Membrane Liquid-Solid Separation Process </li></ul><ul><li>Nearly Complete Separation of Suspended Solids </li></ul><ul><li>Dramatic Reduction in Contaminants </li></ul><ul><li>Membrane Prone to Fouling </li></ul><ul><ul><li>Latest advancement is POREFLON PTFE membranes that greatly reduce fouling </li></ul></ul>www.LayneWater.com
  10. 10. Sequencing Batch Reactor - SBR <ul><li>2 or More Reactors </li></ul><ul><li>Batch Operations </li></ul><ul><ul><li>Treated & Controlled Separately </li></ul></ul><ul><ul><li>Easier to Operate than Continuous Flow </li></ul></ul><ul><li>Smaller Footprint & Capital Cost </li></ul><ul><li>Smaller Wastewater Flows </li></ul>www.LayneWater.com
  11. 11. Critical Next Step! <ul><li>Download and read the complete whitepaper with associated figures and comparison tables while it is still available: </li></ul><ul><li>The Evolution of Secondary Wastewater Treatment in the Food and Beverage Industry </li></ul>http://www.laynewater.com/landing_sec_wt_foodbevind.html www.LayneWater.com
  12. 12. Why Choose Layne for your Food and Beverage Wastewater Treatment? www.LayneWater.com Get the whole story here! <ul><ul><li>Total Wastewater Expertise </li></ul></ul><ul><ul><li>1. Complete WWT options – From large municipal to light industrial Layne has the technology </li></ul></ul><ul><ul><li>2. Package WWT or large scale construction </li></ul></ul>
  13. 13. www.LayneWater.com

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