Utility Cycling Want to haul groceries, beer, maybe even your kids? You don't have to live car free to put your bike to use as a workhorse. Here's the place to share and learn about the bicycle as a utility vehicle.

Water Purifying Trike

Reply

Old 01-29-08, 05:22 PM
  #1  
Stax
Senior Member
Thread Starter
 
Stax's Avatar
 
Join Date: Aug 2005
Location: Oakland
Posts: 90
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Water Purifying Trike

Check out this ride that purifies water on the go. It recently won the Innovate or Die Compitition, sponsored by Google and Specialized Bicycles, which invited "pedal-powered ideas that benefit humanity and the environment."



Video of the machine in action: http://video.mercurynews.com/mms/rt/...2-1453098379d7

More info: http://www.mercurynews.com/columns/c...nclick_check=1
Stax is offline  
Reply With Quote
Old 01-29-08, 09:39 PM
  #2  
StephenH
Uber Goober
 
StephenH's Avatar
 
Join Date: Sep 2007
Location: Dallas area, Texas
Posts: 11,587
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 127 Post(s)
There was another post on this. My thoughts:
It holds 20 gallons, but purifies 2 gallons- so what do you do with the other 18 gallons?
It's made for developing world, but the design sort of assumes a smooth road.
Filters are an inordinately expensive way to purify water- find for camping, but not so hot elsewhere.
__________________
"be careful this rando stuff is addictive and dan's the 'pusher'."
StephenH is offline  
Reply With Quote
Old 01-30-08, 07:56 AM
  #3  
Rob_E
Senior Member
 
Rob_E's Avatar
 
Join Date: Jan 2008
Location: Raleigh, NC
Posts: 2,434

Bikes: Surly World Troller, Downtube 8H

Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 204 Post(s)
Originally Posted by StephenH View Post
There was another post on this. My thoughts:
It holds 20 gallons, but purifies 2 gallons- so what do you do with the other 18 gallons?
It's made for developing world, but the design sort of assumes a smooth road.
Filters are an inordinately expensive way to purify water- find for camping, but not so hot elsewhere.
You can disengage the wheels and just use the pump/purifier assembly. That way you can pump out another two gallons whenever you need it. My question is: can you also disengage the pumping mechanism? Otherwise, if it's a long trip to your water supply, you could pump that 2 gallon tank to overflowing.

Hopefully, being a tricycle, it'd be stable enough on the terrain even if it was a little rough. It really just needs to be easier or as easy as walking the route however many times it would take to get an equivalent amount of water.

Hadn't thought about the filters, though. That could be a real problem, especially if people counted on the filter, stopped using other purification methods, and didn't replace the filter. I guess everyone can't pick up the multi-pack at Costco. But the bike solves two problems: transport and purification of the water. Even if it the purification part breaks down, the transport aspect would still have value, although if you were just looking at transporting water, and not purifying it, there might be more efficient ways to go.

Still, I think it's a great idea.
Rob_E is offline  
Reply With Quote
Old 01-30-08, 08:22 AM
  #4  
Juha
Formerly Known as Newbie
 
Juha's Avatar
 
Join Date: Mar 2002
Location: Helsinki, Finland
Posts: 6,263
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Originally Posted by StephenH View Post
Filters are an inordinately expensive way to purify water- find for camping, but not so hot elsewhere.
Not necessarily, this filter's manufacturing process requires clay, coffee grounds and cow manure.

http://info.anu.edu.au/ovc/media/_pd..._final_web.pdf

They claim it's quite effective.

--J
__________________
To err is human. To moo is bovine.

Who is this General Failure anyway, and why is he reading my drive?


Become a Registered Member in Bike Forums
Community guidelines
Juha is offline  
Reply With Quote
Old 01-30-08, 08:39 AM
  #5  
Rob_E
Senior Member
 
Rob_E's Avatar
 
Join Date: Jan 2008
Location: Raleigh, NC
Posts: 2,434

Bikes: Surly World Troller, Downtube 8H

Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 204 Post(s)
Well, if was uncertain of the purity of my water, nothing would make me more certain that filtering it through cow manure.
Rob_E is offline  
Reply With Quote
Old 01-30-08, 09:22 AM
  #6  
bizzz111
Senior Member
 
Join Date: May 2007
Posts: 519
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I think they would have been better off designing a trailer that could be hooked to a bike, or an animal, or a person, or a vehicle, etc. etc. 20 gallons of water is, what, about 170lbs? So you are going to pedal a 200lb bike, plus the resistance of the filtering?

There really isn't any mention of maintenance either. I'm wondering how complicated it would be to fix/replace the filtering unit.

Personally, I think that giant cylinder wheel that holds water is a better idea, but it doesn't filter the water.
bizzz111 is offline  
Reply With Quote
Old 01-30-08, 09:26 AM
  #7  
thelung
...
 
thelung's Avatar
 
Join Date: Mar 2005
Location: hell
Posts: 750

Bikes: some piece of s h i t

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Like so many design projects... a nice idea in theory that would suck or not work at all in the real world
thelung is offline  
Reply With Quote
Old 01-30-08, 09:48 AM
  #8  
Hobartlemagne 
Spelling Snob
 
Hobartlemagne's Avatar
 
Join Date: Dec 2005
Location: Plano, Texas
Posts: 2,862

Bikes: Panasonic DX4000, Bianchi Pista

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
I wouldn't wand to haul around the weight of 20 gallons of water on a singlespeed.
__________________

The first rule of flats is You don't talk about flats!
Hobartlemagne is offline  
Reply With Quote
Old 01-30-08, 10:29 AM
  #9  
TheFool
.
 
TheFool's Avatar
 
Join Date: Oct 2007
Location: New England
Posts: 58
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Yeah, if it was a stationary bike that *pumped* the water from one place to another, that would be great, but to actually transport it? The only reasons to transport water are to get it uphill, or over a long distance on flat ground between the well and where you actually live. Most people in the second situation live in remote and poor places and I doubt they would have a nice paved road to ride the bike on. And my guess is that in both situations, a repurposed, otherwise unridable bike, a small nonelectric pump and some hose would be cheaper and easier.

But, innovative to apply bike power to something new!
TheFool is offline  
Reply With Quote
Old 02-21-08, 01:34 PM
  #10  
Photosmith
Recreational rider
 
Join Date: Aug 2007
Location: Phoenix, AZ
Posts: 115

Bikes: 2007 Specialized Globe

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
That's a really cool idea, but I have to agree its not entirely practical. The average rider only produces some 100 to 200 watts as a sustainable level over a period of hours and since this is a water purifying item, it should be pointed out that 2 hours of activity to produce 100 watts of bodily power will result in some sweat and water loss. Also, the bike probably costs more than $600. Alternately, you could buy a 100 watt solar panel for $600 which should produce peak power for some 4 hours a day (more than most folks want to dedicate to bike riding just to purify water) every day there's good sunlight, and even run unattended, so there's no need to have someone watching over it. Solar and wind are probably our best bet for sustainable energy as we use up all our fossil fuels in the next 200 years or so.
Photosmith is offline  
Reply With Quote

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service