 
05-29-2008, 06:40 PM
|  | Mr.Ganja Mr. Ganja | | Join Date: Jan 2008 Location: I may be old but im slow.
Posts: 2,910
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Quote:
Originally Posted by jayrollinhippy  What is activated charcoal and why is it used in filters?
Charcoal is carbon. (See this Question of the Day for details on how charcoal is made.) Activated charcoal is charcoal that has been treated with oxygen to open up millions of tiny pores between the carbon atoms. According to Encylopedia Britannica:
The use of special manufacturing techniques results in highly porous charcoals that have surface areas of 300-2,000 square metres per gram. These so-called active, or activated, charcoals are widely used to adsorb odorous or coloured substances from gases or liquids.
The word adsorb is important here. When a material adsorbs something, it attaches to it by chemical attraction. The huge surface area of activated charcoal gives it countless bonding sites. When certain chemicals pass next to the carbon surface, they attach to the surface and are trapped.
Activated charcoal is good at trapping other carbon-based impurities ("organic" chemicals), as well as things like chlorine. Many other chemicals are not attracted to carbon at all -- sodium, nitrates, etc. -- so they pass right through. This means that an activated charcoal filter will remove certain impurities while ignoring others. It also means that, once all of the bonding sites are filled, an activated charcoal filter stops working. At that point you must replace the filter.
from Howstuff works .com  
lol with this info looks like all activated charcoal is vapor based  | Wow dude,what inspired all of that,was there a question i missed ?
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05-29-2008, 07:06 PM
|  | Marijuana Toker Marijuana Toker | | Join Date: Mar 2008 Location: south of the border
Posts: 120
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Quote:
Originally Posted by panhead What is your fresh air intake situation,is it passive or powered,what size is the fresh air intake,are there any bends in any of the intake or exhaust pipes.
How did you mount the bathroom fan,ceiling or wall mount. | there were some bends but i just cut off the excess and now its straight up no bends at all. i mounted it on the outside of the wall right in between my plants and light. its a powered one and i don't need an intake as its in my closet with the door wide open. i also have an airconditioner and the room is sealed up. |
05-29-2008, 07:18 PM
| | Stranger Stranger | | Join Date: May 2008
Posts: 12
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i just started reading this thread from the beginning and saw the post where it said aquarium charcoal wont work. just thougth id clarify things for all here to know that all activated charcoal is the same. |
05-29-2008, 07:31 PM
| | Mr.Ganja Mr. Ganja | | Join Date: Jan 2008 Location: I may be old but im slow.
Posts: 2,910
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Quote:
Originally Posted by jayrollinhippy i just started reading this thread from the beginning and saw the post where it said aquarium charcoal wont work. just thougth id clarify things for all here to know that all activated charcoal is the same. | Cool & thank you.
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05-29-2008, 09:38 PM
|  | Stranger Stranger | | Join Date: May 2008 Location: Under the floorboards
Posts: 6
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wow thats a really cool idea, thanks for sharing |
06-03-2008, 09:04 PM
|  | 420 TIME Stoner | | Join Date: May 2008
Posts: 646
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This is what i did with my $3 bag filter. Coffee Can Filter |
06-04-2008, 11:48 AM
| | Mr.Ganja Mr. Ganja | | Join Date: Jan 2008 Location: I may be old but im slow.
Posts: 2,910
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Quote:
Originally Posted by RandyRocket | Sweet 
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06-04-2008, 03:09 PM
|  | Ganja Smoker Pot Head | | Join Date: Apr 2008
Posts: 291
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dammit tho... all these are excellent odor control solutions. i was thinking something along the lines of that coffee can... imma have to get on that and share the results with you guys. and the other thing i was thinking about using that carbon for was possibly for a water purification device for those of us who aint tryin to pay for a reverse osmosis setup. should work right?
__________________  Jack Herer up in my swisha sweet and we get blowed, like sum west bay bosses out the 650 |
07-05-2008, 06:34 AM
|  | Pot Head Stoner | | Join Date: Nov 2007 Location: a van by the river
Posts: 416
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Here is my $3 filter & coffee can. Well mine cost a little more to build. I couldn't find any Scotch Brite so I bought a woolite washable bag.  
Great idea man. My room hasn't started to stick yet but hopefully it won't stink up the whole basement this time. |
07-05-2008, 07:27 AM
|  | 420 TIME Stoner | | Join Date: Mar 2008 Location: california
Posts: 506
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not all carbon is created equal do not by cheap carbon it will not work for long. find carbon with the smallest particle size the large particle carbons are inneficient at removings smells and other pollutants if you can afford. you really get what you pay for with carbon. i have used dozens of different brands and grades of carbon. try products called bio-chemzorb(aquarium pharmaceuticals) or chemipure(dick boyd enterprises) these are high grade activated carbons that also contain ion exchange resins they are highly effective. also stay away from charcoal totally useless and not the same as carbon it has to be heated to 1600 degrees and hit with water vapor to be activated so it is of no use for our usses. carbon works like a microscopic sponge trapping molocules in its latticework like structure(it looks cool under an electron microscope) because of this once it has filled up it has to be replaced it cannot be rinsed or reused. i would recommend replacing at least every 3 to 4 months depending on amount used. the biggest problem is getting a fan with the power to draw air thru the carbon as it wont work if the air flows over or past the carbon inline fans are necessary    | | Tags: carbon filter, cheap, curing, diy, do it yourself, drying, harvest, home made, odor, smell, stealth, stink | | Tags | carbon, carbon filter, cheap, curing, diy, do it yourself, drying, filter, harvest, home made, odor, smell, stealth, stink  | | Thread Tools | | | | Display Modes |  Linear Mode | 
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