econintersect.com
       
  

FREE NEWSLETTER: Econintersect sends a nightly newsletter highlighting news events of the day, and providing a summary of new articles posted on the website. Econintersect will not sell or pass your email address to others per our privacy policy. You can cancel this subscription at any time by selecting the unsubscribing link in the footer of each email.



What We Read Today 17 February 2015

Econintersect: Every day our editors collect the most interesting things they find from around the internet and present a summary "reading list" which will include very brief summaries (and sometimes longer ones) of why each item has gotten our attention. Suggestions from readers for "reading list" items are gratefully reviewed, although sometimes space limits the number included.

This feature is published every day late afternoon New York time. For early morning review of headlines see "The Early Bird" published every day in the early am at GEI News (membership not required for access to "The Early Bird".).

BECOME A GEI MEMBER - IT's FREE!

Every day most of this column ("What We Read Today") is available only to GEI members.

To become a GEI Member simply subscribe to our FREE daily newsletter.


A start-up that's solved fracking's dirty problem (Andrew Zaleski, CNBC)  A tiny start-up in Boston is pioneering a revolution in the wastewater treatment industry that could turn it on its head: a forward-osmosis technology to purify the water used in fracking.  The firm, Oasys Water, has 45 patents and 60 full-time employees and $35 million in backing.  The process is a low-cost application of osmosis that produces potable water from brine.  The process involves simply pumping the contaminated water through a system with a semi-permeable membrane boundary.  The process is called forward osmosis and is much less costly than the commonly used high pressure reverse osmosis process that has been used for decades for water purification.  See also next article.


Forward Osmosis: A New Approach to Water Purification and Desalination (James E. Miller and Lindsey R. Evans, Sandia Report)  This 2006 research paper describes the forward osmosis process being applied by Oasys Water (previous article).  Here is part of the abstract:

Fresh, potable water is an essential human need and thus looming water shortages threaten the world’s peace and prosperity. Waste water, brackish water, and seawater have great potential to fill the coming requirements. Unfortunately, the ability to exploit these resources is currently limited in many parts of the world by both the cost of the energy and the investment in equipment required for purification/desalination. Forward (or direct) osmosis is an emerging process for dewatering aqueous streams that might one day help resolve this problem. In FO, water from one solution selectively passes through a membrane to a second solution based solely on the difference in the chemical potential (concentration) of the two solutions. The process is spontaneous, and can be accomplished with very little energy expenditure. Thus, FO can be used, in effect, to exchange one solute for a different solute, specifically chosen for its chemical or physical properties. For desalination applications, the salts in the feed stream could be exchanged for an osmotic agent specifically chosen for its ease of removal, e.g. by precipitation.

 The process works by creating a more concentrated solution of an "osmotic agent" which is easily removed after the contaminated water has been processed by transferring pure water through the membrane from a less concentrated contaminated solution by the osmotic pressure that exists (water flows through the membrane spontaneously from the less concentrated solution (which is the "fracking" or other contaminated water) into the more concentrated solution containing the "osmotic agent".  Agents could be dissolved salts which can then later be easily removed by precipitation of an insoluble salt product with an added chemical.



This post continues but only for our Premium Content Subscribers. All newsletter subscribers are given access to the complete post. There are approximately 200 articles reviewed every week in the full post.


The rest of the post is for our premium content subscribers.

To subscribe to premium content is a no cost signup:

Econintersect sends a nightly newsletter highlighting news events of the day, and providing a summary of new articles posted on the website. This newsletter contains links to complete posts (such as "What We Read Today") which are not available to other readers at the website. The newsletter is the key into membership at Econintersect.

Econintersect will not sell or pass your email address to others per our privacy policy. You can cancel this subscription at any time by selecting the unsubscribing link in the footer of each email.











Make a Comment

Econintersect wants your comments, data and opinion on the articles posted.  As the internet is a "war zone" of trolls, hackers and spammers - Econintersect must balance its defences against ease of commenting.  We have joined with Livefyre to manage our comment streams.

To comment, using Livefyre just click the "Sign In" button at the top-left corner of the comment box below. You can create a commenting account using your favorite social network such as Twitter, Facebook, Google+, LinkedIn or Open ID - or open a Livefyre account using your email address.



You can also comment using Facebook directly using he comment block below.





Make a Comment

Econintersect wants your comments, data and opinion on the articles posted.  As the internet is a "war zone" of trolls, hackers and spammers - Econintersect must balance its defences against ease of commenting.  We have joined with Livefyre to manage our comment streams.

To comment, just click the "Sign In" button at the top-left corner of the comment box below. You can create a commenting account using your favorite social network such as Twitter, Facebook, Google+, LinkedIn or Open ID - or open a Livefyre account using your email address.






Econintersect Behind the Wall



search_box

Print this page or create a PDF file of this page
Print Friendly and PDF


The growing use of ad blocking software is creating a shortfall in covering our fixed expenses. Please consider a donation to Econintersect to allow continuing output of quality and balanced financial and economic news and analysis.


Take a look at what is going on inside of Econintersect.com
Main Home
Analysis Blog
Joan Robinson’s Critique of Marginal Utility Theory
The Truth About Trade Agreements - and Why We Need Them
News Blog
The Universities Churning Out The Most Billionaires
Five Amazing Ways Plants Have Created New Technologies
Where U.S. Weekly Wages Go The Furthest
What We Read Today 09 December 2016
How To Stop Using Filler Words Like Um And Uh
02 December 2016: ECRI's WLI Growth Index Improvement Continues
Preliminary December 2016 Michigan Consumer Sentiment Highest Since Early 2015
October 2016 Wholesale Sales Improved
Rail Week Ending 03 December 2016: Finally A Positive Month
November 2016 CBO Monthly Budget Review: Total Receipts Up by 1 Percent in the First Two Months of Fiscal Year 2017
Infographic Of The Day: Copyright - Illegal Download
Early Headlines: Asia Stocks Mixed, Oil Steady, Bank Mafia, Trump To Remain TV Producer, US Life Expectancy Down, India Stocks Suffering, Park Impeached, China Struggles To Support Yuan And More
Heavy Metal And Hard Rock Albums That Went Certified Diamond Status
Investing Blog
Investing,com Weekly Wrap-up 09 December 2016
Are Your Trade Entries Patient Enough?
Opinion Blog
Looking At Everything: Trump's $1 Trillion Infrastructure Plan
The Global Financial Mess Is Due To Political Failure
Precious Metals Blog
Silver Prices Rebounded Today: Where They Are Headed
Live Markets
09Dec2016 Market Close: Wall Street Closes On A New High, Trump Sugar High, Crude Prices Testing Resistance, US Dollar Melts Higher
Amazon Books & More






.... and keep up with economic news using our dynamic economic newspapers with the largest international coverage on the internet
Asia / Pacific
Europe
Middle East / Africa
Americas
USA Government



Crowdfunding ....






























 navigate econintersect.com

Blogs

Analysis Blog
News Blog
Investing Blog
Opinion Blog
Precious Metals Blog
Markets Blog
Video of the Day
Weather

Newspapers

Asia / Pacific
Europe
Middle East / Africa
Americas
USA Government
     

RSS Feeds / Social Media

Combined Econintersect Feed
Google+
Facebook
Twitter
Digg

Free Newsletter

Marketplace - Books & More

Economic Forecast

Content Contribution

Contact

About

  Top Economics Site

Investing.com Contributor TalkMarkets Contributor Finance Blogs Free PageRank Checker Active Search Results Google+

This Web Page by Steven Hansen ---- Copyright 2010 - 2016 Econintersect LLC - all rights reserved