Hi Dan >Keith Addison said: > > > > There won't be any effects -- IF it's properly composted. Please note > > what I said to Myke - what I always say: > > > > >Just make sure it's hot compost - aerobic, thermophilic. It should > > >hit 60 deg C (140F) or more, and then all will be well. > > > > That is a different matter to sewer processing (anaerobic, mesophilic > >meosphilic? Middle loving?
Almost: mid-range temperature loving. Mesophilic microbes live and grow at temperatures between 50 and 113 deg F (10-45 deg C), followed by thermophilic microbes that thrive between 113 and 158 deg F (45-70 deg C). >a combination of aerobic and anaerobic? Sort of, there'll be some anaerobic, and some that are sort of both, or either, but the preponderance is aerobic. >I tried looking it up, didn't get any closer than I had by breaking it >down into it's greek roots. > > > at best). This stuff gets reliably broken down in the extremely > > intense activity of a hot compost pile. > >That's what I thought the case might be. I'm glad to hear it. > >As for anaerobic sewer processing, the plant here is very aerobic, at >least parts of the processing are. I think that means they aerate the liquid, right? I know that system, it works well for decomposing biosolids etc to clean it up for easier handling/disposal, but it's not at all the same thing as a hot compost pile when it comes to biodegrading nasties and killing pathogens (and weed seeds, incidentally). Two essentially different processes for different purposes. >I'll take some pix if you like. I >work for the City of Spanish Fork, in Utah, USA. I work for the >electrical department, but we share office/shop/grounds with the sewer >plant and their processing facuilities. But, being aerobic it certianly >does not generate the temperatures you've mentioned. No, it's mesophilic. That's why I always specify "thermophilic, aerobic". Other parameters are a moisture content of about 65% (not more) and a C:N ratio of about 25-30:1 - that's initially, when you build the pile, once the process takes off those ratios will quickly change. Please see Journey to Forever's composting section for more info. Best wishes Keith >Thanks, >Dan >-- >Jack of all trades, master of none. >Fiber Artist - Genealogist - Kilt Maker - Linux Geek - Piper - Woodworker >http://www.xmission.com/~redbeard Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://archive.nnytech.net/index.php?list=biofuel Please do NOT send Unsubscribe messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/biofuel/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
