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Water Conservation and Distillery Effluent Treatment Technologies for ZLD AIDA, New Delhi Feb 26 th & 27 th 2011 PowerPoint Presentation
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Water Conservation and Distillery Effluent Treatment Technologies for ZLD AIDA, New Delhi Feb 26 th & 27 th 2011 - PowerPoint PPT Presentation


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Water Conservation and Distillery Effluent Treatment Technologies for ZLD AIDA, New Delhi Feb 26 th & 27 th 2011. Application of Perma Membrane Technology in Distillery Industries By Rahul Kesherwani. About PERMIONICS. Over 32 years of experience in Membrane Technology

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slide1

Water Conservation and Distillery Effluent Treatment Technologies for ZLDAIDA, New DelhiFeb 26th & 27th 2011

slide2

Application of Perma Membrane

Technology in

Distillery Industries

By

Rahul Kesherwani

about permionics
About PERMIONICS
  • Over 32 years of experience in Membrane Technology
  • More than 2500 installations in India & abroad
  • In-house membranes & complete system manufacturing facility
  • In-house or onsite pilot plant facility to demonstrate performance of various membranes.
  • Tailor made system design to ensure high performance and long life.
problems associated with distillery
PROBLEMS ASSOCIATED WITH DISTILLERY
  • About 8 to 15 liters of waste water is produced per liter of alcohol production.
  • Distillery effluent contains high COD & BOD as well as high salts.
  • The disposal of spent wash is a major problem
  • It is must to treat wastewater before disposal
membrane technology
MEMBRANE TECHNOLOGY
  • Pressure driven separation process based on size of molecules
slide6

MEMBRANE APPLICATION

IN DISTILLERY

  • - WASTEWATER RECYCLING
  • - CONDENSATE RECOVERY
  • - SPENT LEES TREATMENT
  • BEER CLARIFICATION PRIOR TO DISTILLATION
  • COLUMN
  • - SPENT WASH CONCENTRATION PRIOR TO
  • EVAPORATOR
slide7

WASTEWATER

RECYCLING

HPA membrane Systems have been successful in wastewater treatment.

These hydrophilic membranes are capable of taking high COD, BOD load

Specially treated & designed thus reducing choking & fouling

Spiral wound construction allow higher effective membrane area compared to disk or tubular type

direct spent wash treatment
Direct Spent wash treatment
  • Spent wash contains colloidal particles as well as High and Low molecular weight organic matter and inorganic salts
  • Directly fed to our tailored UF membrane system to concentrate High Mol Wt organic mass and allow low molecular weight organics and inorganic salts to pass through membrane
  • UF permeate is further treated by HPA series membrane systems
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Membrane II

To Reuse

DIRECT SPENT

WASH TREATMENT

Spent Wash

Reject

Membrane I

Reject

Permeate

UF Membrane

Permeate

Reject

To

Bio

Composting

To

Bio Gas plant

c ase study effluent treatment after bio methanation
Case Study: Effluent treatment after Bio methanation

Table – 1.Chemical composition of bio-methanated distillery effluent.

  • Effluent after Bio methanation fed to HPA membrane system
  • Permeate of NF system is tinge yellow in color with 50% reduction in COD, BOD & TDS
  • Reject of NF system ( 30- 35% of feed) will go for Bio Composting
  • Permeate of HPA is further polished by HPA RO system.
  • HPA RO Reject is recycled back to HPA NF System
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WASTE WATER RECYCLING:

After Biomethanation

Spent Wash

Primary Clarifier

Reject

Membrane I

Reject

Filter

Permeate

Membrane II

Reject

Bio

Composting

Anaerobic

Digester

Lamella

Clarifier

Permeate

To Reuse

condensate polishing
CONDENSATE POLISHING
  • Liquid effluent collected from evaporator, distillation Section
  • 85-90% condensate recovery
  • Permionics Developed Temperature resistant membrane that can be operated upto 70 deg C
  • Energy Saving Process
  • Membrane followed by Post treatment will reduce COD upto 90%
spent less treatment
SPENT LESS Treatment
  • Spent lees collected from distillation section is rich in COD
  • Developed membrane which can with stand in alcohol traces.
  • Reduction in COD & BOD upto 90% with membrane
steps involved in condensate spent less treatment
STEPS INVOLVED IN CONDENSATE/ SPENT LESS TREATMENT

FEED TANK

MCF

Bag Filter

Membrane

Permeate

Reject

Degasser

Filter Press

ACF

Water

To reuse

beer wine clarification prior to distillation
BEER & WINE CLARIFICATION PRIOR TO DISTILLATION
  • Beer clarification by ceramic micro filtration before distillation will remove
        • Biomass
        • Un reacted yeast
        • Colloidal Particle
        • Suspended Solids
beer wine clarification prior to distillation16
BEER & WINE CLARIFICATION PRIOR TO DISTILLATION
  • Benefits:
    • Better efficiency in heat exchange during distillation
    • Improve in spent wash quality
    • Low maintenance of distillation column
    • No yield loss in this process