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I spend $35 to replace the carbon filter on my water filter/pitcher every few months. Would the activated carbon used by home distillers be as good an option to filter my water? The exact brand I'm thinking about is Prestige stone activated carbon (.4-1.4mm), and I would be running it through a coffee filter in the existing housing on my water pitcher.

Can any chemists - amateur or professional - tell me if this would be a good or bad idea?

Not sure but if you want more information on filters look up the website for a company callled CUNO.

2009-04-16 14:46:12 by Lynn

Nanostructured Carbon Water Filter. It#39;s 350 times higher adsorption effect than GAC \ Granular Activated Carbon.

I own a Katadyn Combi water filter. Carbon refill packets for it are expensive. There are many places to buy activated carbon in bulk relatively cheap. Physically it's a trivial matter to buy in bulk and use it in the filter but I'm wondering about the quality of the carbon, the form of the carbon and how suited it is for the filter or anything else I need to be aware of when buying carbon in bulk.

I think you might be in for more trouble than its worth. Activated carbon will come in a powder form, most likely. So then you'd have to open the filters, dump out the old stuff, and hope your system has enough pressure to push through that much carbon.

I would look into some heavy research on the fabrication of carbon filters before I tried to do something like that.

Its sort of like saying "gas is expensive, i think i'll just buy oil on the open market, and refine it at home to make the gasoline."

2008-10-23 21:38:58 by ckm

Price: $10.60 $10.60

Reduces chlorine taste and odor
Low pressure drop makes it ideal for whole house or areas where higher flow carbon block filtration is needed
Meets all plumbing codes

Yes and no

activated carbon removes chlorine and chloramines (chemicals your water utility puts in water to slow bacteria growth) and activated carbon removes SOME organics. Some of the oils may be removed, but they may quickly saturate the activated carbon bed and pass through. Benzene and toluene are typical organics that are removed to some degree by AC beds.

As to bacteria, in fact activated carbon provides an excellent medium for bacteria to grow. AC is porous and since it is collecting organics, it provides water, food, and darkness. perfect for bacteria. And since you're removing agents that control bacterial growth in the first place, you should expect MUCH higher bacteria counts after an AC bed.

From my decade working with AC beds.

2009-01-29 21:34:31 by yinyang

Price: $5.95 $5.95

can anybody tell me why we put a pouch of activated carbon in a water filter ?
what are its advantages? any disadvantage ? when we have to remove its pouch . any defined time for its expiration ?

It isn't needed really. Your tank only needs a filter media. Most advanced aquarists only use carbon to remove meds after treatment of a tank and not much more. I really has no benefit for absorbing ammonia or nitrites. Your dechlor water conditioner De chlor will remove all the heavy metals (neutrilize them)
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Other than neurtalizing meds there are no real advantages to carbon or not.

Carbon depending on what is in the tank is pretty much useless after only a few days in the tank before it starts to leach out what it has absorbed.

Salt water tanks do not use carbon at all. Even without a skimmer

2009-09-05 05:59:38 by EmRaaN

I need to dechlorinate some water flowing at about 5-20 gpm. To do this, I want to build an activated carbon water filter large enough that I don't have to replace the carbon too often. I have some ideas, but information about carbon filters is suprisingly scarce. Does anyone have any ideas about how to design such a filter?
I have been thinking of using a barrel for the housing.

Get a pool sand filter and fill it with Activated carbon instead or or in addition to sand (depends on the screen size and grain size of the carbon).

You didn't mention the chlorine concentration as this will have an impact on sizing and life expectancy of the media.

Sodium Thiosulfate is also used as a dechlorinating agent.

2007-10-04 18:00:21 by baximus_rex