Methane digester/recovery is old tech, as Curley just suggested. It has some inherent negatives, however:
Low BTU content Requirement to “scrub” and dry it, as in its raw form it’s highly corrosive I can recall working on equipment around total confinement hog operations that did methane recovery in the early 1980s with Purdue University and farmers in the areas surrounding West Lafayette. A piece of equipment in these places would be a rusted out hulk in a year of being exposed to the environment. -D > On Aug 22, 2019, at 3:04 PM, Curley McLain via Mercedes > <mercedes@okiebenz.com> wrote: > > Sounds like another methane digester. Nothing new there. First one I saw in > operation was 1983 on a hog farm. > > Of course you have to consider the sources: Vermont pointy heads and some > moron submitting to the AP. > > Actually, the Mother earph news hippies were probably building digesters in > VT in the late 60s. > > Andrew Strasfogel via Mercedes wrote on 8/21/19 1:56 PM: >> Manure and food scrap digester to make fuel for Vt. collegePublished: >> Wednesday, August 21, 2019 >> >> Construction is underway at a Vermont dairy farm on a system that will turn >> cow manure and food scraps into renewable natural gas to help Middlebury >> College meet its goal of getting 100% of its energy from renewable sources >> and provide extra income for the farmer. >> >> The groundbreaking for the anaerobic digester was held yesterday at the >> Goodrich Family Farm in Salisbury, Vt. >> >> "We constantly seek innovative ways to be good stewards of the land and >> practice sustainable and viable agriculture," said Chase Goodrich, who is >> among the fourth generation of his family to operate their farm, which now >> milks about 900 cows. "The digester will help to continue to make this >> possible." >> >> The digester, which is being constructed as a partnership of the college, >> the farm, Vermont Gas Systems and Vanguard Renewables, will be the largest >> of its kind in Vermont. >> >> A statement distributed by the college said the system would process 100 >> tons of manure and 180 tons of organic food waste a day into renewable >> natural gas. >> >> Vanguard is now contacting local and Vermont-based food manufacturers to >> find the food waste. >> >> Middlebury College, which is working on a plan to meet all its energy needs >> from renewable sources by 2028, is planning to buy the bulk of the gas that >> will be produced by the digester. Once the digester is in operation, it >> will supply about half the energy Middlebury uses for heating and cooling. >> The college's biomass plant will produce the other 50%. Both sources >> provide some of the college's electricity. >> >> Vermont Gas has begun construction on a 5-mile pipeline to connect the farm >> with its distribution network. *— Associated Press* >> _______________________________________ >> > > > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
