membrane technologies for wastewater treatment w. gilbert o’neal, ph.d., p.e

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Membrane Technologies for Wastewater Treatment W. Gilbert O’Neal, Ph.D., P.E.

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Membrane Technologies for Wastewater Treatment W. Gilbert O’Neal, Ph.D., P.E. Membrane Biological Reactors ( MBr ). Membrane Filtration of Activated Sludge Mixed Liquor Eliminates clarifiers Removes solids and turbidity from effluent Reduced footprint Tolerates High SRT, MLSS - PowerPoint PPT Presentation

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Page 1: Membrane Technologies for Wastewater Treatment W. Gilbert O’Neal, Ph.D., P.E

Membrane Technologies for Wastewater Treatment

W. Gilbert O’Neal, Ph.D., P.E.

Page 2: Membrane Technologies for Wastewater Treatment W. Gilbert O’Neal, Ph.D., P.E

Membrane Biological Reactors (MBr)

• Membrane Filtration of Activated Sludge Mixed Liquor

• Eliminates clarifiers• Removes solids and turbidity from effluent• Reduced footprint• Tolerates– High SRT, MLSS– Filamentous Bacteria

Page 3: Membrane Technologies for Wastewater Treatment W. Gilbert O’Neal, Ph.D., P.E

Page 4: Membrane Technologies for Wastewater Treatment W. Gilbert O’Neal, Ph.D., P.E

Page 5: Membrane Technologies for Wastewater Treatment W. Gilbert O’Neal, Ph.D., P.E

Page 6: Membrane Technologies for Wastewater Treatment W. Gilbert O’Neal, Ph.D., P.E

ZeeWeed MBr

• https://www.youtube.com/watch?v=d0bcPBjNz2g

• https://www.youtube.com/watch?v=H_sqYYBUZB0

• https://www.youtube.com/watch?v=2R9tmlaP5Rc

https://www.youtube.com/watch?v=d0bcPBjNz2g

https://www.youtube.com/watch?v=d0bcPBjNz2g

https://www.youtube.com/watch?v=H_sqYYBUZB0

https://www.youtube.com/watch?v=H_sqYYBUZB0

https://www.youtube.com/watch?v=2R9tmlaP5Rc

https://www.youtube.com/watch?v=2R9tmlaP5Rc

Page 7: Membrane Technologies for Wastewater Treatment W. Gilbert O’Neal, Ph.D., P.E

Page 8: Membrane Technologies for Wastewater Treatment W. Gilbert O’Neal, Ph.D., P.E

Page 9: Membrane Technologies for Wastewater Treatment W. Gilbert O’Neal, Ph.D., P.E

Zero Liquid Discharge (ZLD)

• Water Reuse (90-95%)• “Dry” Residual Disposal• System Components– Biological Treatment– Chemical Treatment– Macro Filtration– Membrane Filtration (UF and RO)– Evaporation (MEE)

Page 10: Membrane Technologies for Wastewater Treatment W. Gilbert O’Neal, Ph.D., P.E

Application

• Regulatory Restrictions– India

• Resource Limitations• Discharge Limitations• Sustainability Goals

Page 11: Membrane Technologies for Wastewater Treatment W. Gilbert O’Neal, Ph.D., P.E

Filter Heat ExchangerPump

Equalization Cooling Tower

Biological OxidationSecondary Clarifier

Quartz FilterUF

Softener De-carbonator 3- stage ROResin Filter Filter Press

Solar Pond MEE Air Evaporator

Reject - 7%

Sludge Thickener

Sludge storage

Permeate to process – 93%

ZLD PLANT FLOW DIAGRAM

Influent

Page 12: Membrane Technologies for Wastewater Treatment W. Gilbert O’Neal, Ph.D., P.E

ZLD Schematic

Page 13: Membrane Technologies for Wastewater Treatment W. Gilbert O’Neal, Ph.D., P.E

RO System Detail

Page 14: Membrane Technologies for Wastewater Treatment W. Gilbert O’Neal, Ph.D., P.E

ZLD Mass Balance

Page 15: Membrane Technologies for Wastewater Treatment W. Gilbert O’Neal, Ph.D., P.E

Influent Characteristics

1.6 mgd

Page 16: Membrane Technologies for Wastewater Treatment W. Gilbert O’Neal, Ph.D., P.E

Biological Effluent

Page 17: Membrane Technologies for Wastewater Treatment W. Gilbert O’Neal, Ph.D., P.E

RO Permeate

Page 18: Membrane Technologies for Wastewater Treatment W. Gilbert O’Neal, Ph.D., P.E

Reject Water

71,600 gpd

Page 19: Membrane Technologies for Wastewater Treatment W. Gilbert O’Neal, Ph.D., P.E

ZLD Cost

• 100,000 GPD System• Capital Cost: $2,000,000• Operating Cost: $16/1000 gal.

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