Re: [Biofuel] Cheap and easy filtering of WVO
More pressure across the sheet will definitely increase throughput but as one member pointed out the sheet can only take so much. No a plastic barrel would be worse. And no the size of the pump is not so much of a factor. I can implode a steel drum with an aquarium pump, although it will take a little time, it will be just as exciting! A good vacuum (say 750 mm of mercury or roughly 29 inches) results in atmospheric pressure on one side and essentially zero on the other. Atmospheric pressure is roughly 14.7 pounds per square inch (PSI). Say 15 psi. If the lid of a drum is 24 inches in diameter, it has an area of about 450 square inches. A good vacuum would therefore place 450 x 15 = 6785 pounds or roughly 3 tons of force on the ends of the cylinder and a hell of a lot more radially inwards on the sides of the cylinder. Even a wimpy partial vacuum of 2 inches mercury would put roughly 450 pounds force on the drum head. What I have been considering doing is using gravity as a motive force for filtering. If I can raise a bucket of water in the air with a hose attached to the bottom, I get roughly 1/2 psi for every foot of height. Now oil is a little lighter than water but it is roughly the same. If I can raise my drum with a block and tackle 40 feet up to the roof of the barn I get about 20 psi of pressure on the end of my hose where my filter housing is. I would use a standpipe in the drum as well so that the majority of the gunk stays in the bottom of the barrel and doesn't clog my filter. Also a very coarse prefilter or fine mesh screen ahead of the actual filter will help tremendously. If you want to make a home job vacuum filter using bed sheets or whatever, large surface area will help a lot in filter life but go for a long narow cylindrical shape with smallish ends. Cylinders take force very well in a radial direction but not so well axially. For vacuum use, I would construct a filter by using a pipe with tons of holes drilled in it and wrap it with the sheet or felt or what have you, Then place this pipe inside a larger pipe as a housing. The inlet would be to the outer pipe and then the pipe with the holes becomes a mechanical support for the filter media. The outlet then becomes the end of the inner pipe. A pipe reducer then adapts the inner pipe to the outer one. You would have to ream out the reducer so the smaller pipe can go right through before you glue it. Use a peice of rubber tire inner tube that fits the outer pipe with some hose clamps as a seal. Check the touchless processor on the JTF site for pics of this type fliter. PS this filter won't work with pressure, only vacuum. Cheers Joe Kurt Nolte wrote: True. What if it were more of a pulsed vacuum, based upon rate of flow? A little vacuum assistance here, a little vacuum assistance there; what I was operating off of was the principle behind a little piece of lab equipment we used in high school, in which running water was used to generate suction to draw thick or particle-heavy fluids more rapidly through filter paper. The vacuum doesn't have to be huge, large or even moderate, just enough to create a difference in pressure between the atmosphere and the inside of the barrel. Though granted, if you go that route it's not really a cheap or easy filtering solution anymore, is it? ;p Though like somone else said, the filter in this case would probably give way before the barrel did; you'd need some kind of reinforcement to hold it together, especially right there at the rim of the barrel. I wonder if sandwiching the bedsheets between two pieces of wire window screen would help in that instance? Perhaps multiple stages would be best, first vacuum drawing it through wire screen, then a lighter vacuum filtration through the sheets, for finer filtering? Would a plastic chemical barrel hold up better? -K On 9/30/05, Joe Street [EMAIL PROTECTED] wrote: Careful. Even a modest vacuum will result in tremendous forces developing on the large surface area of that drum which is way too wimpy metal for the job as a vacuum vessel. You will end up crushing the drum and making a huge mess! Joe ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Cheap and easy filtering of WVO
Joe says: For vacuum use, I would construct a filter by using a pipe with tons of holes drilled in it and wrap it with the sheet or felt or what have you, Then place this pipe inside a larger pipe as a housing. The inlet would be to the outer pipe and then the pipe with the holes becomes a mechanical support for the filter media. The outlet then becomes the end of the inner pipe. A pipe reducer then adapts the inner pipe to the outer one. You would have to ream out the reducer so the smaller pipe can go right through before you glue it. Use a peice of rubber tire inner tube that fits the outer pipe with some hose clamps as a seal. Home Depot, and probably Lowes, in plumbing, stocks an endlesssleeve that fits over a 4 or maybe 6-in perforated pvc pipe, for use in filtering out sand that would eventually clog the inside of a subsoil installation carrying water away from the perimeter of a building. As a prefilter for wvo, perhaps secondary to the initial screening of gross crud, would such a filter work? Possibly inserted into a long trough into which the wvo was poured, a six feet or longer section of perforafed 4 or 6-in pvc pipe, capped at both ends, the filter clamped at either end on the pipe,, with a 3/4-in pipe tapped into the side of the pipe,from which the filtered wvo was continuously pumped into the next stage of filtration. A new section of pipe with filter would be installed periodically to replace the crudded one. Any comments? Glenn. ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Cheap and easy filtering of WVO
Glenn; I'm not sure exactly what product you are talking about but if you are thinking about something which is supposed to be disposable please don't. Whatever we build and use should be made to last and be emptied, washed and re-used. This is not a throw away world and we have to get away from that poison mentality which the folks who manufacture plastic (which uses petroleum) would like us to have and believe and live by every day. That is one of the reasons we are in trouble and heading deeper every day. Best regards. Joe [EMAIL PROTECTED] wrote: Joe says: For vacuum use, I would construct a filter by using a pipe with tons of holes drilled in it and wrap it with the sheet or felt or what have you, Then place this pipe inside a larger pipe as a housing. The inlet would be to the outer pipe and then the pipe with the holes becomes a mechanical support for the filter media. The outlet then becomes the end of the inner pipe. A pipe reducer then adapts the inner pipe to the outer one. You would have to ream out the reducer so the smaller pipe can go right through before you glue it. Use a peice of rubber tire inner tube that fits the outer pipe with some hose clamps as a seal. Home Depot, and probably Lowes, in plumbing, stocks an endlesssleeve that fits over a 4 or maybe 6-in perforated pvc pipe, for use in filtering out sand that would eventually clog the inside of a subsoil installation carrying water away from the perimeter of a building. As a prefilter for wvo, perhaps secondary to the initial screening of gross crud, would such a filter work? Possibly inserted into a long trough into which the wvo was poured, a six feet or longer section of perforafed 4 or 6-in pvc pipe, capped at both ends, the filter clamped at either end on the pipe,, with a 3/4-in pipe tapped into the side of the pipe,from which the filtered wvo was continuously pumped into the next stage of filtration. A new section of pipe with filter would be installed periodically to replace the crudded one. Any comments? Glenn. ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Cheap and easy filtering of WVO
In a message dated 10/3/2005 3:55:14 PM Eastern Standard Time, [EMAIL PROTECTED] writes: Glenn;I'm not sure exactly what product you are talking about but if you are thinking about something which is supposed to be disposable please don't. Whatever we build and use should be made to last and be emptied, washed and re-used. This is not a throw away world and we have to get away from that poison mentality which the folks who manufacture plastic (which uses petroleum) would like us to have and believe and live by every day. That is one of the reasons we are in trouble and heading deeper every day.Best regards. Joe Joe, I see no reason why the sleeve could not be washed and reused, if that is what you want to do. Or, if not washable, clothe that could be washed, could be wrapped around the pipe, and rewashed later,, same as was proposed in the earlier proposal. Glenn ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Cheap and easy filtering of WVO
Umm, don't quite understand. Push air in to get air out? Or are you referring more to an accordian or bladder style container, compressed then forcibly expanded to create a vacuum? Sorry, it is late and I just accidentally closed some scripting that I'd been working on for several hours w/o saving it. The idea is that pushing air past the under side of the filter but above the oil is will keep it from vapor locking. That's the best I can explain for now. And a vacuum pump might be slightly less efficient than a pressure pump, but would require less setup than the pressure pump would to achieve the same effect. I'd think that the vacuum system would actually be safer, since with a pressurized air system pushing it through the filter you might run the risk of suspending oxygen and other atmospheric gasses in the oil; it might not be bad for the reaction, but it is a set of unknown variables you don't need. ;p I'm talking like...3lbs over 1atm. Notevenbicycle pressures. Helping gravity. You get the idea. Also, I really don't suspect that oxygen would be NEARLY as dangerous to the solution as wateror even humid air. Although high pressure injection is a neat idea, hadn't thought of that. On a purely coincidental side benefit note, pulling the oil through via vacuum might just pull a small portion of the water out, too, through exposure to under-vapor pressure air as it falls and collects. Why? I'd think that forcing the product through a filter under vacuum would be more likely to 1) force-clog the filter or 2) allow some particulate through just because you're sucking it through the filter. I'd *think* unless it was fancy filter, the vacuum would cause the filter to bow, which would in turn open the meshcompromizing filtration quality. I was just thinking slightly positive pressure on top (could also bow the filter, but we're talking a larger surface area) could likely be done w/ a small aquarium filter and a gasket. A vacuum uses a whole lot more electricity. I think Keith hit the nail on the head about the importance of allowing the product to settle and using elevated drains though. I would try to explain better, but my vision is getting blurry. ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Cheap and easy filtering of WVO
Hi Hal Thank for showing the very nice good picture and your very good work. Some filter aids use on the cloth and some height like cofee filter can improve the filteration quality. In the case of the crude oils , the impurity of small colloidal particles act as the filterationmaking possibleto get the the very clear oil . Thanking you sd Pannirselvam Brasil On 9/29/05, hal [EMAIL PROTECTED] wrote: Thought you folks might enjoy a cheap filtering technique we've been using forseveral months. http://home.bellsouth.net/p/PWP-halspersonalpages___Biofuel mailing listBiofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.orgBiofuel at Journey to Forever: http://journeytoforever.org/biofuel.htmlSearch the combined Biofuel and Biofuels-biz list archives (50,000 messages):http://www.mail-archive.com/biofuel@sustainablelists.org/ -- Pagandai V PannirselvamUniversidade Federal do Rio Grande do Norte - UFRNDepartamento de Engenharia Química - DEQCentro de Tecnologia - CTPrograma de Pós Graduação em Engenharia Química - PPGEQ Grupo de Pesquisa em Engenharia de Custos - GPECAv. Senador Salgado Filho, Campus UniversitárioCEP 59.072-970 , Natal/RN - BrasilResidence :AvOdilon gome de lima, 2951, Q6/Bl.G/Apt 102 CapimMacioEP 59.078-400 , Natal/RN - BrasilTelefone(fone ) ( 84 ) 3215-37690 Ramal21032171557Telefone(fax) ( 84 ) 3215-3770 residencia 32171557 Cellular8488145083 ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Cheap and easy filtering of WVO
Hmmm, just when I start to think I know something Let me explain where I am at with this and it may save me endless hours and $. I reprocessed some bio based on JtF reprocess instructions, and had 0 Glycerin drop out. Possibly the Bio is fine, but it was darker than that I made from Virgin. I read where dark means Glycerin thus figured this was the case. When I say dark I mean it is several shades more yellow but still very clear. I thought that pre filtering my oil would fix this??? ( this stuff also still smells bad like a rendering plant) The wash water is clear, there is a clean line between the water and the bio and it separates faster than virgin. You mentioned that, All unfiltered solids drop out into the glycerin by-product layer. So mabey I just have not had enough experience to know what color range to expect? I'm Stumped, Thanks again, Jim Keith Addison wrote: YES! Thank you for the great idea! I will ask my wife to help me make one soon. I have been pondering long and hard on this part of the process. Why bother to filter it at all? If you're running SVO, sure, but for making biodiesel there's no need. I seldom see flotsam in WVO, if so just scoop it off the top, otherwise it's all jetsam, it sinks (it sinks even better if you heat the oil). So let it sink then take/pour the WVO from the top of whatever you get it in, use a 1mm wire mesh screen to be sure. No need for a filter. Collect the bottoms separately, settle, when there's enough pour through a 1mm wire mesh screen, use. If you use a pre-heating tank put a standpipe in it so any remaining crud collects at the bottom, you can clean it out periodically (compost it). Either way, heat, react, settle. Solid particles that get this far are small and won't affect the processing (liquids or dissolved solids might do that but they can't be removed by filtering anyway). All unfiltered solids drop out into the glycerine by-product layer. Separate the biodiesel, wash, dry. As Jan said recently, The biodiesel should be ready for instant consumption if it´s clear and bright and without sediments. If it's properly made it will be without sediments. Quite a lot of people don't filter the biodiesel either before using it (your diesel has at least two filters anyway). Make it well, use standpipes wherever you can, don't skimp on settling times, and you'll be fine. Best wishes Keith Thanks for sharing, Jim hal wrote: Thought you folks might enjoy a cheap filtering technique we've been using for several months. http://home.bellsouth.net/p/PWP-halspersonalpages ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Cheap and easy filtering of WVO
On 10/2/05, Evergreen Solutions [EMAIL PROTECTED] wrote: Sorry, it is late and I just accidentally closed some scripting that I'd been working on for several hours w/o saving it. The idea is that pushing air past the under side of the filter but above the oil is will keep it from vapor locking. That's the best I can explain for now. Quite alright, I've been there myself before. Just not with scripting. :p Sounds almost like we have similiar ideas, at least once you get past my instinctive ramping up into something mechanical. Like I said, I got the idea from a filter in the lab that uses running water to generate the vacuum; maybe the moving air could have the same effect? And a vacuum pump might be slightly less efficient than a pressure pump, but would require less setup than the pressure pump would to achieve the same effect. I'd think that the vacuum system would actually be safer, since with a pressurized air system pushing it through the filter you might run the risk of suspending oxygen and other atmospheric gasses in the oil; it might not be bad for the reaction, but it is a set of unknown variables you don't need. ;p I'm talking like...3lbs over 1atm. Notevenbicycle pressures. Helping gravity. You get the idea. Also, I really don't suspect that oxygen would be NEARLY as dangerous to the solution as wateror even humid air. Although high pressure injection is a neat idea, hadn't thought of that. It was in a paper that I was reading on different esters. It basically separated them into Drying and non-Drying esters, and said that some vegetable-derived esters could easily become drying if there is too much oxygen suspended in them. So, a fuel that dries in your lines and pump would be, I'd think, a bad thing; I'm paranoid though, it probably wouldn't hurt that much. Better safe than sorry? On a purely coincidental side benefit note, pulling the oil through via vacuum might just pull a small portion of the water out, too, through exposure to under-vapor pressure air as it falls and collects. Why? I'd think that forcing the product through a filter under vacuum would be more likely to 1) force-clog the filter or 2) allow some particulate through just because you're sucking it through the filter. I'd *think* unless it was fancy filter, the vacuum would cause the filter to bow, which would in turn open the meshcompromizing filtration quality. I was just thinking slightly positive pressure on top (could also bow the filter, but we're talking a larger surface area) could likely be done w/ a small aquarium filter and a gasket. A vacuum uses a whole lot more electricity. It only uses a whole lot more electricity if you are shooting for a real vacuum. Just making a small/moderate pressure difference is like running an air compressor; I've actually seen some vacuum pumps that ran more efficiently than air compressors, just because they weren't trying to make such a big pressure difference through forcible compression. Just increase the ambient air pressure an almost imperceptible amount by removing a small volume of air. If you want to be really cheap, hook it up to a pedal-powered reciprocating piston pump. Get your workout and filter your oil all at once. ^.~ Might look into building one of those myself. As for why it would possibly remove a bit of water, I'm thinking it probably would (especially with warmed oil?) simply because with the decreased air pressure there is also going to be a decrease in humidity; I guess similar to vacuum recovery of methanol described in one of the processor pages? Lower the vapor pressure artificially, and more will evaporate? Might get some of that free standing water out of the oil, especially if you added some energy to the system in the form of mild heating. You might possibly be able to prevent filter clogging by having a multiple stage filter, and only have your last layer exposed to the vacuum. By that point all the large chunks are removed, and you're just getting the fine stuff. Might want to clean the filter more often in this instance, though, to prevent buildup and tears. Just thoughts, anyway. I think Keith hit the nail on the head about the importance of allowing the product to settle and using elevated drains though. I would try to explain better, but my vision is getting blurry. I like gravity. Gravity is free. ^.^ -K ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Cheap and easy filtering of WVO
YES! Thank you for the great idea! I will ask my wife to help me make one soon. I have been pondering long and hard on this part of the process. Why bother to filter it at all? If you're running SVO, sure, but for making biodiesel there's no need. I seldom see flotsam in WVO, if so just scoop it off the top, otherwise it's all jetsam, it sinks (it sinks even better if you heat the oil). So let it sink then take/pour the WVO from the top of whatever you get it in, use a 1mm wire mesh screen to be sure. No need for a filter. Collect the bottoms separately, settle, when there's enough pour through a 1mm wire mesh screen, use. If you use a pre-heating tank put a standpipe in it so any remaining crud collects at the bottom, you can clean it out periodically (compost it). Either way, heat, react, settle. Solid particles that get this far are small and won't affect the processing (liquids or dissolved solids might do that but they can't be removed by filtering anyway). All unfiltered solids drop out into the glycerine by-product layer. Separate the biodiesel, wash, dry. As Jan said recently, The biodiesel should be ready for instant consumption if it´s clear and bright and without sediments. If it's properly made it will be without sediments. Quite a lot of people don't filter the biodiesel either before using it (your diesel has at least two filters anyway). Make it well, use standpipes wherever you can, don't skimp on settling times, and you'll be fine. Best wishes Keith Thanks for sharing, Jim hal wrote: Thought you folks might enjoy a cheap filtering technique we've been using for several months. http://home.bellsouth.net/p/PWP-halspersonalpages ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Cheap and easy filtering of WVO
On 10/1/05, Evergreen Solutions [EMAIL PROTECTED] wrote: Nippers away! OR, vacuum the bottom by pushing the air out of it rather than pulling. Vacuum's are soI dunno...ineffecient. Umm, don't quite understand. Push air in to get air out? Or are you referring more to an accordian or bladder style container, compressed then forcibly expanded to create a vacuum? And a vacuum pump might be slightly less efficient than a pressure pump, but would require less setup than the pressure pump would to achieve the same effect. I'd think that the vacuum system would actually be safer, since with a pressurized air system pushing it through the filter you might run the risk of suspending oxygen and other atmospheric gasses in the oil; it might not be bad for the reaction, but it is a set of unknown variables you don't need. ;p On a purely coincidental side benefit note, pulling the oil through via vacuum might just pull a small portion of the water out, too, through exposure to under-vapor pressure air as it falls and collects. -K ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Cheap and easy filtering of WVO
I wonder if you couldn't improve the speed of the it if you made it a vacuum filtration process? Hook up a vacuum pump to an opening on the side of the barrel, set high up so it doesn't actually remove oil, and turned it on to create a decreased pressure within the barrel to draw the oil through faster. Might make that cruddy oil filter out faster, and if it doesn't take as long maybe you could have time to do it multiple times/multiple mesh levels to get it cleaner? Just a thought, -KOn 9/29/05, hal [EMAIL PROTECTED] wrote: Thought you folks might enjoy a cheap filtering technique we've been using forseveral months.http://home.bellsouth.net/p/PWP-halspersonalpages ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Cheap and easy filtering of WVO
Careful. Even a modest vacuum will result in tremendous forces developing on the large surface area of that drum which is way too wimpy metal for the job as a vacuum vessel. You will end up crushing the drum and making a huge mess! Joe Kurt Nolte wrote: I wonder if you couldn't improve the speed of the it if you made it a vacuum filtration process? Hook up a vacuum pump to an opening on the side of the barrel, set high up so it doesn't actually remove oil, and turned it on to create a decreased pressure within the barrel to draw the oil through faster. Might make that cruddy oil filter out faster, and if it doesn't take as long maybe you could have time to do it multiple times/multiple mesh levels to get it cleaner? Just a thought, -K On 9/29/05, hal [EMAIL PROTECTED] wrote: Thought you folks might enjoy a cheap filtering technique we've been using for several months. http://home.bellsouth.net/p/PWP-halspersonalpages ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Cheap and easy filtering of WVO
Hello Hal, Great idea and reusable as well. Thanks, Tom From: hal [mailto:[EMAIL PROTECTED]To: Biofuel@sustainablelists.orgSent: Thu, 29 Sep 2005 13:37:20 -0300Subject: [Biofuel] Cheap and easy filtering of WVOThought you folks might enjoy a cheap filtering technique we've been using for several months.http://home.bellsouth.net/p/PWP-halspersonalpages___Biofuel mailing listBiofuel@sustainablelists.orghttp://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.orgBiofuel at Journey to Forever:http://journeytoforever.org/biofuel.htmlSearch the combined Biofuel and Biofuels-biz list archives (50,000 messages):http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Cheap and easy filtering of WVO
Hal wrote:Thought you folks might enjoy a cheap filtering technique we've been using for several months.http://home.bellsouth.net/p/PWP-halspersonalpagesI like it! I use old pillowcases in the same way with 5 gallon buckets for the initial WVO filtering, but yours is prettier! -- Thanks,PaulHe's the kind of a guy who lights up a room just by flicking a switch ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Cheap and easy filtering of WVO
Thanks Hal. I'm new to this biofuel adventure and I was wondering about an inexpensive but reusable filtering method. Doug Turner - Original Message - From: hal [EMAIL PROTECTED] To: Biofuel@sustainablelists.org Sent: Thursday, September 29, 2005 12:37 PM Subject: [Biofuel] Cheap and easy filtering of WVO Thought you folks might enjoy a cheap filtering technique we've been using for several months. http://home.bellsouth.net/p/PWP-halspersonalpages ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Cheap and easy filtering of WVO
Joe Street wrote: Careful. Even a modest vacuum will result in tremendous forces developing on the large surface area of that drum which is way too wimpy metal for the job as a vacuum vessel. You will end up crushing the drum and making a huge mess! I'll give odds on the sheet giving out long before the cylindrical drum. And it'll make one awful mess in the vacuum. My vote would be for filtering warmer oil. Let it set longer in the sun before filtering it:) --- David ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Cheap and easy filtering of WVO
YES! Thank you for the great idea! I will ask my wife to help me make one soon. I have been pondering long and hard on this part of the process. Thanks for sharing, Jim hal wrote: Thought you folks might enjoy a cheap filtering technique we've been using for several months. http://home.bellsouth.net/p/PWP-halspersonalpages ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Cheap and easy filtering of WVO
True. What if it were more of a pulsed vacuum, based upon rate of flow? A little vacuum assistance here, a little vacuum assistance there; what I was operating off of was the principle behind a little piece of lab equipment we used in high school, in which running water was used to generate suction to draw thick or particle-heavy fluids more rapidly through filter paper. The vacuum doesn't have to be huge, large or even moderate, just enough to create a difference in pressure between the atmosphere and the inside of the barrel. Though granted, if you go that route it's not really a cheap or easy filtering solution anymore, is it? ;p Though like somone else said, the filter in this case would probably give way before the barrel did; you'd need some kind of reinforcement to hold it together, especially right there at the rim of the barrel. I wonder if sandwiching the bedsheets between two pieces of wire window screen would help in that instance? Perhaps multiple stages would be best, first vacuum drawing it through wire screen, then a lighter vacuum filtration through the sheets, for finer filtering? Would a plastic chemical barrel hold up better? -KOn 9/30/05, Joe Street [EMAIL PROTECTED] wrote: Careful. Even a modest vacuum will result in tremendous forces developing on the large surface area of that drum which is way too wimpy metal for the job as a vacuum vessel. You will end up crushing the drum and making a huge mess! Joe ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Cheap and easy filtering of WVO
Why a vacuum? Jeeze why a vacuum? Pumps are so much cheaper! 2 stage, barrel on a barrel, filter in the middle. Air tight @ the filter, airtight @ the top. A medium sized fish aquarium should be able to generate enough pressure (or an air compressor, they can be had for cheaply enough), pushes the material through the filter instead of pulling it. OR, vacuum the bottom by pushing the air out of it rather than pulling. Vacuum's are soI dunno...ineffecient. Hell, for that matter, take an old washing machine motor, belt it, belt around the barrel, mount the barrel on the washer spindle, and centrifuge it, especially if you put a cone on the bottom of the barrel so you're not pulling trub off the bottom when you rack to a new container. Sorry to use homebrew terms for biodiesel, but I guess it is sort of a homebrew. The main idea is to think outside the box. Horray for innovention! ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
