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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
This talk discusses the current state of recycled water
Water reuse and recycling rationale
2
Water recycling in practice
Technology of recycled water
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
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
Recycled water is treated to higher standards than drinking water, to ensure safety
4
Microfiltration and Ultrafiltration
Recycled water is treated to higher standards than drinking water, to ensure safety
4
http://whattalking.com/picasa/nano
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
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/
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
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
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
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
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
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
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
