Send the link below via email or IMCopy
Present to your audienceStart remote presentation
- Invited audience members will follow you as you navigate and present
- People invited to a presentation do not need a Prezi account
- This link expires 10 minutes after you close the presentation
- A maximum of 30 users can follow your presentation
- Learn more about this feature in our knowledge base article
Do you really want to delete this prezi?
Neither you, nor the coeditors you shared it with will be able to recover it again.
Make your likes visible on Facebook?
Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.
Transcript of Desalination
Every cellular structured growing item on this planet relies on water for its very survival.
return that fresh water to Mother Nature’s management ability;
And that other 99% is of course, our Oceans.
Think of all the natural disasters, chemical spills, raw sewage disposal, industrial waste, and extreme droughts suffered by our streams during your lifetime. Now, imagine all that water so completely poisoned over time that it can no longer support life.
Accessible fresh water is approximately 1% of Earth’s total water supply (DVS Marketing, 2013). This 1% has served, re-served, been used, abused, and served again to the point that humanity should let that 1% rest, while exploring ways to put the other 99% to use.
Desalination represents a human effort to: relieve the stress from Earth’s 1% volume of fresh water;
acquire safe and healthy access to Earth’s 97% volume of salt water;
utilize an already recognized mature technology;
minimize energy expenditure while using this technology;
form redundancy in the existing fresh water infrastructure;
eliminate worry of natural disaster affecting supply;
and end the negative effect of drought on our inland waterways and fisheries.
Now imagine a world that will never run out of clean, pure water.
Desalination is a way to access the world’s largest water source, remove the impurities, distribute to all living things, and eliminate the inevitable threat of one day having no pure water with which to survive.
But the lion’s share of blame for this abuse lies directly at the feet of we, the descendants of Adam and Eve. Water as a resource has served us well, but we have abused it to the point of ruining it.
Vote YES Decebruary 32nd
when we could do it all from here.
Why do we continue to bathe, cook, and drink from here,
Reverse Osmosis membrane technology (the heartbeat of desalination) has permeable abilities to within 5 microns-easily able to remove salt and other contaminates from its water host. On average, 40% of the sea water entering reverse osmosis filtration systems is converted to potable water (DVS Marketing, 2013)
The original energy of the incoming ocean stream can be harnessed by the discharged concentrated salt stream, and be easily routed to energy recovery devices, thereby reducing the amount of energy needed to run the plant itself. This significant reduction in operating cost is estimated to be as much as 60% (DVS Marketing, 2013).
The basic infrastructure for delivery of water to consumers is already in existence. Purified sea water can easily be routed to surface reservoirs for storage, or to streams and rivers that may be part of a freshwater network of their own. This purified water can be routed to inland waterways that may be facing ecosystem imbalance threats due to drought, raw sewage processing, chemical spill, or industrial waste.
The oceans are not subject to drought, and will not suffer an all encompassing natural disaster (DVS Marketing, 2013). Man made disasters can and will be handled much the same way as is presently being done, and ironically, reverse osmosis is already a key part of man made disaster recovery programs.
Desalination plants are already in use by over 130 countries, and have been built in every one of these United States. “Given the possibilities for this clean water supply, desalination technology adoption in the United States lags behind that of those other countries” (National Academies Press, National Research Council, 2008, Preface). Those used in the United States total a capacity of only around 1,600 million gallons per day (MGD) or less than four one-thousandths (0.4%) of total U.S. water used per day. Twenty five per cent of these plants in the U.S. are used to desalinate river water; a testament to not only the technology’s adaptability, but also the sad state of our current fresh water supply (Cooley, Glieck, & Wolff, 2006). This record of use represents a test bed to be analyzed both individually and as regional groups to assess the possibility of connecting a nationwide network of pipelines, reservoirs, and waterways already in existence with the goal of delivering purified water to an entire country.
Currently, when proper conservation of water resources is practiced, water reuse is applied, but in many cases a deficit of freshwater still exists. There simply is no denying that sea water reverse osmosis is a viable alternative to continued emergency water management. There is no shortage of water in the oceans, and extreme conservation measures do not need consideration when tapping into a source the size and scale of the seven seas. This resource that covers 71% of the Earth’s surface, represents 97% of Earth’s accessible water, has an average depth of 14,000 feet, comprising an estimated 1,335,000,000 cubic kilometers of water will not have to be coddled (National Oceanic and Atmospheric Administration, 2013). The vastness of this water will not need to be rationed. At most, continued good stewardship of this most abundant resource is all that would be required (DVS Marketing, 2013).
Quite simply, the time for desalination is at hand. What was once considered to be a “tool in the tool box” of water management should now be viewed as a well oiled machine ready to be brought on line.
Cooley, H., Glieck, P., & Wolff, G. (2006, June). Desalination, With a Grain of Salt, A California Perspective. 19-21. Retrieved from http://lbwater.org/sites/default/files/reports/Pacific_Institute_Desal_Report.pdf
DVSMarketing. (Producer). (2013, May 1). How Seawater Desalination Works. [You tube Video]. Retrieved from www.youtube.com/watch?v=_H8EDLFNDtI
National Academies Press, National Research Council. (2008). Desalination: A National Perspective. (Accession Number 247378). Washington D.C: National Academies Press. Retrieved from http://eds.b.ebscohost.com.lib.kaplan.edu/eds/detail?
NOAA. (2013, December 18). National Ocean Service. Retrieved from http://oceanservice.noaa.gov/facts.php
Press "play" arrow at lower left corner
Man is not entirely responsible for the current dismal state of fresh water on the planet, for nature has played its role from time to time as well. Volcanic eruptions have repeatedly turned wells and reservoirs into gaseous pits of poison. Floods have often caused freshwater rivers to re-route themselves across plains or through canyons laden with inedible soluble minerals making the entire tributary non potable. And animals certainly don’t think of where to process their raw sewage.
. Dirty Stream [Photograph]. Ben Pascoe via Flickr, taken on February 6, 2006 , all rights reserved.
. Powerful Blue Ocean Wave [Photograph]. From Bigstock.com Copyright 2004-2014 All rights reserved.
Figure 1. Glass of Water with Ice [Photograph] yaymicro.com copyright 2013
Glass of Water with Ice
[Photograph]. (n.d.) Retrieved February 7, 2014 from yaymicro.com/stock-image/glass-of-water-with-ice/1616570
Ben Pascoe. (2006)
TV in Dirty Stream
[Photograph]. Retrieved February 7, 2014 from www.flickr.com/photos/bgarthp/96752254/
Powerful Blue Ocean Wave
[Photograph] (n.d.). Retrieved February 7, 2014 from www.bigstockphoto.com/image-17176880/stock-photo-powerful-blue-ocean-wave