Urgent Evoke

A crash course in changing the world.

Two Innovative Clean Water Solutions out of MIT

For my LEARN4, I bring to you two very interesting and very different solutions for creating clean water, both of which come out of the Massachusetts Institute of Technology, and both of which I found completely by accident.

The first is a tiny water desalination chip, It's about the size of a postage stamp, and uses a new approach to purifying water called ion concentration polarization. I'm not going to explain here how it works, for that you can read the article.

Each chip on it's own can only purify a few microliters an hour, but their hope is to put 1,600 of the chips together, which could desalinate 15 liters per hour and could be run simply by a battery or solar cell and the effect of gravity on the water poured in.

I think this has a huge potential to become a great source of water in more developed countries or in countries given aid, however I don't see much use of it in developing counties as I don't think it could be manufactured cheaply and locally.

The second innovation to come out of MIT recently is a project to use plants to purify polluted canal water in Italy. They plan to create a wetlands park that would employ plants used to remove the various pollutants from a terribly polluted section of Italy, all the while creating a beautiful public space that they think would increase the tourism of the Italian countryside. Details about how it works and such can be found in the article.

I'm a big fan of this idea as it's very natural, sustainable, and beautiful. I would love to see this happen in Italy, and then to see it implemented in various places all over the world. This has also given me the idea that perhaps a sort of grassroots program could be started where these sorts of plants are planted near rivers in local communities to help clean the water. This would be done through programs like Nick's Gratitude Gardens, my Farmpunk Kits, or Guerrilla Gardening.

As I will be at MIT tomorrow through Sunday, I hope to talk to the researchers for both these projects, find out more about their research, and let them know about EVOKE.

Views: 45

Comment by Samiran Roy on April 7, 2010 at 12:21pm
Thanks for sharing, have you heard of Lifestraw? It is an ingenious and extremely practical method to purify water....
Comment by Amos Meeks on April 7, 2010 at 3:21pm
Absolutely I've heard of lifestraw. It's a wonderful thing, but it does have a couple problems, namely that it can't be made locally where it's needed, and that it only lasts for a finite amount of time.

While the desalination chips also cannot be made locally where they are most needed, they serve a different purpose in making sea water drinkable, while the lifestraw makes dirty local freshwater drinkable.

Using plants for water purification also has an extremely different niche, as it's not a quick solution like the lifestraw, and it can't be implemented everywhere, but it is extremely natural, sustainable, beautiful, and long lasting.

Comment

You need to be a member of Urgent Evoke to add comments!

Join Urgent Evoke

Latest Activity

N updated their profile
Sep 25, 2020
Sophie C. commented on Asger Jon Vistisen's blog post Stinging Nettle
"I love that you've brought this to attention. An extensive database of uncommon but resistant and hardy plants/foods could be developed and organized by climate. Ease of growth and processing should also be taken in to account. I will try to…"
Aug 19, 2020
Meghan Mulvey posted a blog post

Fourth of July on the Lake

This past weekend was the annual celebration at the lake house in Connecticut. It is amazing that the lake is still so clear and beautiful after all these years. The watershed association has done a wonderful job protecting these waters from the damaging effects of development.The wood grill was finally ready to cook on, so we didn't miss the propane tank fueled grill anymore. The food actually tasted fresher than in the past and was easy to keep fueled.Dad was very proud of the solar hybrid…See More
Jul 6, 2020
Asger Jon Vistisen posted a blog post

Stinging Nettle

In this blog post I will focus on a plant that is abundant in our nature, and which is immensely nutritious. It's of course the Stinging Nettle. Let's start with the chemical constituents of this plant:37 % Non-Nitrogen-Extracts19 - 29 % Ash9 - 21 % Fiber4 % Fat22 % ProteinOnce the leaves are drid, their protein content can reach an astounding 40 %, which is much higher than beef, which even under the best of circ***tances can never exceed 31 % protein. In addition the Stinging Nettle consists…See More
Apr 13, 2020
Jonathon McCallum posted a blog post

The meal

It is 7'oclock, I was late home from work due to an assignment that i wanted to get ahead on. By the time I get home I am feeling extremley tired and I cannot be bothered to make a proper meal. I walk to the fridge and open it to see what there is for me to eat. All of the out of date foodstuffs have been automaticaly thrown away by the fridge, they will be recycled tomorrow as animal feed or something. I see i have organic local eggs and some local cheese. Foods are vacc** sealded for easy…See More
Mar 10, 2020
Jean Paul Galea shared a profile on Facebook
Mar 1, 2020
Kevin posted a blog post

Future

FutureToday is 2020/1/1. It is just like yesterday. The war is still continuing. It has started since 2010. In 2010, that year was a horrible year. Almost every energy ran out. Every country’s governments were crushed down at the same time. There were riots everywhere. All of the big company’s bosses were killed xdeadx in the riots. Troops fought each other everywhere. Food was bought up xawayx at once. There were no more food supplies in any shops. The economy was all crushed down. All the…See More
Jan 1, 2020
Namwaka Mooto posted blog posts
Jan 13, 2016
T D updated their profile
Sep 3, 2015
Brook Warner posted blog posts
Aug 25, 2015
Santiago Vega posted blog posts
May 5, 2015
Santiago Vega commented on Santiago Vega's blog post Act 8
May 5, 2015
Santiago Vega posted photos
May 5, 2015
Rico Angel Rodriguez posted blog posts
May 2, 2015
Rico Angel Rodriguez posted a photo

public servants

The exchange works directly for state and public workers and servants. It gives them credit in exchange for the amount of public work they contribute to the community. The more constructive they are based off a base rate the more credit they recieve.
May 2, 2015
Brian Hurley posted blog posts
May 2, 2015

Follow EVOKE on Twitter




Official EVOKE Facebook Page




EVOKE RSS Activity Feed










© 2021   Created by Alchemy.   Powered by

Badges  |  Report an Issue  |  Terms of Service