info@o2env.com
• Point 1
• Point 2
• Point 3
• Point 4
• Point 5
• Point 6
Water &
Energy
Water Innovations Alliance
Paul ...
info@o2env.com
Our Current Water System
1. Our current water system is inefficient and
energy intensive
2. Due to mounting...
info@o2env.com
info@o2env.com
Energy footprint of Water
• In the Unites States Water services represents between 1% - 5% of
total nationa...
info@o2env.com
How we arrived at where we are today
• 1850 – the Water Closet and
the Sewer adopted.
• 1914 – the Activate...
info@o2env.com
Environmental Concerns led to
Construction of WWTP’s
info@o2env.com
Intelligent Design or Evolution?
info@o2env.com
The Future - energy associated with
providing water services will increase
• Increasing Population
• Urbani...
info@o2env.com
Energy Used to Provide Water
Services
• Energy to Transport
Water
• Energy to Treat clean
Water
• Energy to...
info@o2env.com
There is Energy in Wastewater
- The energy in the
wastewater produced by one person
each day could power a ...
info@o2env.com
Energy to Treat Wastewater
info@o2env.com
Opportunities for Energy Recovery
in Wastewater
Raw Wastewater Primary Secondary Treated Wastewater
Sludge
info@o2env.com
Sludge to Energy Technologies
• Sludge to Syngas Gasification – e.g. KOPF
• Sludge to Biogas Anaerobic dige...
info@o2env.com
Slurry Carb Process
info@o2env.com
Opportunities for Energy Recovery
in Wastewater
Raw Wastewater Primary Secondary Treated Wastewater
Sludge
info@o2env.com
Energy from Wastewater
– Anaerobic Membrane Bioreactors
• Proposed demonstration plant at the Masdar
Ecocit...
info@o2env.com
Microbial Fuel Cell
info@o2env.com
Energy efficient methods of
meeting water challenges
• Water quantity
1. Increased Efficiency: e.g. Irrigat...
info@o2env.com
• Point 1
• Point 2
• Point 3
• Point 4
• Point 5
• Point 6
Water &
Energy
Water Innovations Alliance
Paul ...
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Water and energy Chicago 09 - Paul O'Callaghan, O2 Environmental

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This paper outlines the energy used in providing water services and technologies and approaches to reduce this use and generate energy from wastewater. Presentation by Paul O'Callaghan CEO of O2 Environmental at a Water Innovations Alliance conference 2009 in conjunction with Global Water Intelligence.

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Water and energy Chicago 09 - Paul O'Callaghan, O2 Environmental

  1. 1. info@o2env.com • Point 1 • Point 2 • Point 3 • Point 4 • Point 5 • Point 6 Water & Energy Water Innovations Alliance Paul O’Callaghan O2 Environmental paul.ocallaghan@o2env.com Tel + 1 6046763581 Complete Paper available for download @ www.o2env.com
  2. 2. info@o2env.com Our Current Water System 1. Our current water system is inefficient and energy intensive 2. Due to mounting global pressures we can no longer afford an inefficient and energy intensive system 3. This is driving radical change and creating opportunities for technology development.
  3. 3. info@o2env.com
  4. 4. info@o2env.com Energy footprint of Water • In the Unites States Water services represents between 1% - 5% of total national energy use • 2-3% of total global energy consumption is utilised in the pumping and treatment of water for industrial and residential use. • 30%-60% of a city’s energy bill is associated with the provision of water services, • U.S. water-related energy use is equivalent to 13% of the nation’s electricity consumption. • The carbon footprint currently associated with moving, treating and heating water in the U.S. represents 5% of all U.S. carbon emissions
  5. 5. info@o2env.com How we arrived at where we are today • 1850 – the Water Closet and the Sewer adopted. • 1914 – the Activated Sludge Wastewater Treatment Process invented At this time there were less than 2 Billion people in the world mostly rural • Today: 6 Billion people, mostly urban • Future: Population and urbanisation are set to increase.
  6. 6. info@o2env.com Environmental Concerns led to Construction of WWTP’s
  7. 7. info@o2env.com Intelligent Design or Evolution?
  8. 8. info@o2env.com The Future - energy associated with providing water services will increase • Increasing Population • Urbanisation • Climate Change • Groundwater depletion • Water scarcity • Rising energy costs and GHG emissions. • Addition of water services in the developing world
  9. 9. info@o2env.com Energy Used to Provide Water Services • Energy to Transport Water • Energy to Treat clean Water • Energy to treat waste Water Water Distribution 45% Water Treatment 26% Wastewater Management 29%
  10. 10. info@o2env.com There is Energy in Wastewater - The energy in the wastewater produced by one person each day could power a 100 watt light bulb for 5 hours
  11. 11. info@o2env.com Energy to Treat Wastewater
  12. 12. info@o2env.com Opportunities for Energy Recovery in Wastewater Raw Wastewater Primary Secondary Treated Wastewater Sludge
  13. 13. info@o2env.com Sludge to Energy Technologies • Sludge to Syngas Gasification – e.g. KOPF • Sludge to Biogas Anaerobic digestion +/- pre- treatment • Biogas Utilisation Microturbines / Stirling Engines/ Fuel Cells • Sludge to Oil: Pyrolysis e.g. STORS • Sludge to Fuel: Carbonisation & Torrefaction E-coal and E- Fuel • Supercritical Water Oxidation: Aquacritox
  14. 14. info@o2env.com Slurry Carb Process
  15. 15. info@o2env.com Opportunities for Energy Recovery in Wastewater Raw Wastewater Primary Secondary Treated Wastewater Sludge
  16. 16. info@o2env.com Energy from Wastewater – Anaerobic Membrane Bioreactors • Proposed demonstration plant at the Masdar Ecocity in Abu Dhabi. – Microbial Fuel Cells • The Israeli company EMEFCY is marketing the MEGAWATTER process which does just this. – Advanced Primary Treatment • Micromedia Filtration have a demonstration plant operating in Woodsville, New Hampshire
  17. 17. info@o2env.com Microbial Fuel Cell
  18. 18. info@o2env.com Energy efficient methods of meeting water challenges • Water quantity 1. Increased Efficiency: e.g. Irrigation & Leakage 2. Alternative models for providing water services: e.g. decentralised, rainwater use 3. Water Re-use - 30% <energy than Desal 4. Forward Osmosis for Desalination • Water quality – Have different grades of water – Recover energy from wastewater – Alternative model: source separation and re-use
  19. 19. info@o2env.com • Point 1 • Point 2 • Point 3 • Point 4 • Point 5 • Point 6 Water & Energy Water Innovations Alliance Paul O’Callaghan O2 Environmental paul.ocallaghan@o2env.com Tel + 1 6046763581 Complete Paper available for download @ www.o2env.com

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