Brian, On the surface this would seem better...but all filters tend to clog and either require frequent changing or a backflush capability. Although toilet paper rolls would be a cheap alternative to "real" filters if you need to filter to say 5 microns (as is suggested for WVO/SVO you still need a final "real" filter. And then there is the time and mess associated with changing out fouled disposable filters. For filtering "serious" amounts of WVO I found the least expensive and most productive way was to use reusable filters and a simple inexpensive backflush cycle. Automating it just allows the maximum utilization of the filters with a minimum of tending. 400-600 gals/day should fill most small producers needs.
Keep contributing Brian...there are no stupid questions or suggestions. I am sure that the method you suggest does exist and will fit some folks needs well. Dana --- Brian Dickinson <[EMAIL PROTECTED]> wrote: > I know this may sound stupid but I was told of a > method of filtration that uses layers of tissue > paper as the filter medium. It is not for the > speedy. The Oil on the tissue stops it breaking up. > The method involved gravity of the oil mass to > filter through the tissue layers which may be an > inexpensive first filter requiring no energy to use. > The larger the area of paper the faster the > filtation. The method was shown on TV as a way of > re-using cooking oil. The resultant oil was said to > be clear and particle free.A small amount of heat > may speed up the filtration. > > > -----Original Message----- > From: Dana Linscott <[EMAIL PROTECTED]> > Date: Sun, 13 Jan 2002 17:52:23 -0800 (PST) > To: biofuel@yahoogroups.com > Subject: Re: [biofuel] Pool Filters for > WVO/alternatives > > > > Ken, > > I also looked at those commercial fryer filtration > > units and besides being very expensive did not > filter > > down to the 5 microns I wanted for running WVO/SVO > in > > my converted diesel. I have just sent Keith a > > schematic of the filtration unit I came up over > the > > last 6 months which I assume he will post as he > has my > > other contributions. The fully automated backflush > > operation is new and so I am trying to get a few > more > > weeks on it to determine if there are any problems > > with it. I believe it can be assembled for around > > $US120 or less in its' simplest form but it does > not > > approach 30 gal/minute. More like 30 gal/hr. > > maximum...600gal+/day.Of course the major limiting > > factor is the number of filters/surface area of > filter > > material. I imagine that if one did not need SVO > > filtered to 5 microns it would also increase > capacity > > dramatically. One could easily and inexpensively > add > > more parallel filters to step up the capacity of > my > > design as well. > > > > I have also been experimenting with a prefilter > module > > that uses water to remove 95% of the solids from > WVO > > which would dramatically increase the filtering > > capacity of this unit. In addition I have been > > developing a design for a continuous process > > centrifugal filter that shows promise not only in > > removing solid particles but dewatering and > removing > > hydrogenated oils and waxes/tallows from WVO. I > also > > may have stumbled into a simple way to accelerate > > stratification of WVO contaminants/components that > > might work for accelerating the stratification of > > Biodiesel/glycerin. > > > > I always look for the simplest most inexpensive > way to > > accomplish my goal and this often involves > assembling > > my devices from off the shelf or salvaged > components > > rather than fabricating them from scratch. > > Scottish genes are a powerful influence. > > > > Dana > > --- Ken Provost <[EMAIL PROTECTED]> wrote: > > > Has anybody out there ever used a swimming pool > or > > > spa filter > > > to clean used fryer oil? I've been looking at > the > > > fryer oil > > > filtration systems that restaurants use, and > they > > > seem awfully > > > expensive for what you get (like $1500-1800 USD > for > > > a new > > > one with only a 30-liter capacity!) I can get a > > > brand-new pool > > > filter system, based on diatomaceous earth (so > you > > > could also add > > > an FFA-removing filter powder), with a > throughput > > > of 30 gal > > > per minute (!!) for under $500. You might not > want > > > to get the oil > > > real hot (the guy said 120 F would be fine), but > it > > > seems like it > > > might be a great system. Any thoughts? > > > > > > > > > __________________________________________________ > > Do You Yahoo!? > > Send FREE video emails in Yahoo! Mail! > > http://promo.yahoo.com/videomail/ > > > > -- > > _______________________________________________ > Sign-up for your own FREE Personalized E-mail at > Mail.com > http://www.mail.com/?sr=signup > > > 1 cent a minute calls anywhere in the U.S.! > > http://www.getpennytalk.com/cgi-bin/adforward.cgi?p_key=RG9853KJ&url=http://www.getpennytalk.com > > > __________________________________________________ Do You Yahoo!? Send FREE video emails in Yahoo! Mail! http://promo.yahoo.com/videomail/ ------------------------ Yahoo! Groups Sponsor ---------------------~--> Tiny Wireless Camera under $80! Order Now! FREE VCR Commander! Click Here - Only 1 Day Left! http://us.click.yahoo.com/WoOlbB/7.PDAA/ySSFAA/FGYolB/TM ---------------------------------------------------------------------~-> Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Please do NOT send "unsubscribe" messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
