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Recycling is the future for water suppliesin arid regions
Jonathan Damora
Viterbi School of EngineeringUniversity of Southern California
June 22, 2015
http://www.aroundme.com/locations/10785/post-shocking-before-and-after-pictures-of-california-taken-only-3-years-apart-prove-how-severe-the-drought-is#page=1
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This talk discusses the current state of recycled water
Water reuse and recycling rationale
2
Water recycling in practice
Technology of recycled water
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Recycling allows retention of limited water supplies and thus requires less water input to meet demand
3Adapted from: http://www.athirstyplanet.com/your_h20/our_water_cycle.pdf
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Recycling allows retention of limited water supplies and thus requires less water input to meet demand
3Adapted from: http://www.athirstyplanet.com/your_h20/our_water_cycle.pdf
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Recycled water is treated to higher standards than drinking water, to ensure safety
4
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Microfiltration and Ultrafiltration
Recycled water is treated to higher standards than drinking water, to ensure safety
4
http://whattalking.com/picasa/nano
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Microfiltration and Ultrafiltration
Recycled water is treated to higher standards than drinking water, to ensure safety
4
Removes viruses, bacteria, and any suspended solids
0.1 µm -MF0.01 µm -UF
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Microfiltration and Ultrafiltration
Reverse Osmosis
Recycled water is treated to higher standards than drinking water, to ensure safety
4
Removes viruses, bacteria, and any suspended solids
0.1 µm -MF0.01 µm -UF
http://synderfiltration.com/learning-center/articles/module-configurations-process/hollow-fiber-membranes/
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Microfiltration and Ultrafiltration
Reverse Osmosis
Recycled water is treated to higher standards than drinking water, to ensure safety
4
Removes viruses, bacteria, and any suspended solids
0.1 µm -MF0.01 µm -UF
Removes dissolved ions
0.0001 µm
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Microfiltration and Ultrafiltration
Reverse Osmosis
Recycled water is treated to higher standards than drinking water, to ensure safety
4
Removes viruses, bacteria, and any suspended solids
0.1 µm -MF0.01 µm -UF
Removes dissolved ions
0.0001 µm
http://www.microbiologyonline.org.uk/about-microbiology/introducing-microbes/overview
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Microfiltration and Ultrafiltration
Reverse Osmosis Advanced Oxidation
Recycled water is treated to higher standards than drinking water, to ensure safety
4
Removes viruses, bacteria, and any suspended solids
0.1 µm -MF0.01 µm -UF
Removes dissolved ions
0.0001 µm
http://www.ozon-uv.com/aop.htm
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Microfiltration and Ultrafiltration
Reverse Osmosis Advanced Oxidation
Recycled water is treated to higher standards than drinking water, to ensure safety
4
Removes viruses, bacteria, and any suspended solids
0.1 µm -MF0.01 µm -UF
Removes dissolved ions
0.0001 µm+
Creates free radicals to destroy any trace organic compounds
Ultraviolet light
Hydrogen Peroxide, Titanium Dioxide, or Ozone
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Orange County’s Groundwater Replenishment System directly saves 100 million gallons of fresh water per day
5
Groundwater injection for sea water barrier
Purified Water infiltrating into groundwater
http://www.digitaljournal.com/image/139151http://www.gwrsystem.com/images/stories/AboutGWRS/GWRS%20Technical%20Brochure.pdf
http://www.gwrsystem.com/images/stories/AboutGWRS/GWRS%20Technical%20Brochure.pdf
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Orange County’s Groundwater Replenishment System directly saves 100 million gallons of fresh water per day
5
Groundwater injection for sea water barrier
Purified Water infiltrating into groundwater
http://www.digitaljournal.com/image/139151http://www.gwrsystem.com/images/stories/AboutGWRS/GWRS%20Technical%20Brochure.pdf
http://www.gwrsystem.com/images/stories/AboutGWRS/GWRS%20Technical%20Brochure.pdf
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Humanity needs to establish safe water sources not
In summary, the use of recycled water will grow as populations continue to increase
6
safe water sources not impacted by climate
http://www.gwrsystem.com/images/stories/AboutGWRS/GWRS%20Technical%20Brochure.pdf