I recently starting using the red oxygen cylinders you get from the hardware store for aeration. First I was wondering typically how many batches you get per cylinder and also where to recycle them. Thanks in advance.
I think I get roughly 10 batches out of a cylinder using 45 to 60 seconds for a 5 gal batch. I throw them in the recycle bin and they pick them up curbside.
Do you have to puncture it or anything? I use these too, but I have a collection of spent ones that I wasn't sure what to do with. There's no safety hazard with a pressurized oxygen cylinder, even if it's empty?
Do not puncture it. If you think there is pressure in it just put the valve on and leave it open to completely empty. At that point it's just a metal can.
Doing a little research it looks like you could get a refillable tank for ~$70 which would probably last you quite a while. It would pay for itself in a mere 150 batches or so. Either that or you could sneak up on the nearest hoveround and swipe the tank off the back.
Cut one end off and they make great tennis ball canons. A tennis ball is a little small, so you must use wadding or make a pharing out of aluminum foil. Use about 150-200 grains of black powder, and you can launch a tennis ball out of sight. Adult supervision required.
there is a nut that can be removed when it is empty. this provides a visual confirmation that the cylinder does not contain any gas. then it is recycled with steel. the curb side pick up, if you have that service, shouldn't take any gas cylinders without confirming it has been emptied. Cheers.
I've heard that people put those green cylinders out at garage sales, but it also sounds like you need a prescription to get an O2 fill. Maybe it's different if you go to a welding shop.
I just checked craigslist and no used tanks except OAW setups. They did have a couple concentrators for $300. That'd be kind of cool, no refill required.
you want one of these... http://www.airsepcpd.com/airsepcpd/pdfs/ASD_mk202-1.pdf all the oxygen you could ever need, forever, on demand. we have these operating at soil and groundwater remediation sites. if you have an extra $15,000 to spend on your brewery this is the one. i am still trying to figure out how to safely capture some of the oxygen and bring it back to my home brewery. Cheers.
I know you're probably joking, but I'm thinking that's overkill. A little bit of googling tells me your typical home use concentrator, which uses the same basic process as that monster, gives you 5-10 Liters per minute of 90% O2. If Naugled is using his 1.4oz disposable for ~10 batches, then I would imagine even a small concentrator would be sufficient for a commercial brewery.
the AS-80 is rated for 80 liters of oxygen per hour and it is on the small side. its waaaay more capacity than any brewery could ever need. even the biggest factory breweries would not need something like that. but if you are injecting oxygen into 40 monitoring wells, 24/7/365 over 10 years then yes, you need that thing. i am mostly serious about figuring out how to capture some of the oxygen for later use at home... because i don't already have enough dumb things to try with this homebrewing hobby of mine. Cheers.
Figure out a way to hook up one of these? http://www.northerntool.com/shop/to...ci_sku=28792&gclid=CIrG66KR5LYCFQVV4AodgVwAHQ
good ideas and i think i got it. ziplocs, seems like that would leak. i thought about a portable can but it would need to be made for oxygen. you dont want to put oxygen in anything that has even a little bit of hydrocarbon present. big boom. Tedlar bags. they are made to sample gas for lab analysis, teflon coated, inert, and the inside is sterile. and free. should have thought of the simple solution first but thats not how i work apparently. thanks!
