So perhaps what we need is Poo-Roombas http://www.irobot.com/uk/ on every farm? Or train dogs to collect crap (they seem to like eating the stuff well enough) rather than using children as is common in the 3rd world.
It's probably cheaper and easier to dry and burn the excrement to create energy than inefficiently producing biofuels. Many farm vehicles and trucks could be poo-powered if they were battery hybrids and if we could replace all farm diesel use and provide some electricity for the grid too then that would be a huge win. Probably a shit idea though. On 25 June 2012 06:51, Axil Axil <[email protected]> wrote: > To cover the losses in waste production from small operations, it may be > appropriate to extend the analysis to more types of waste streams. > > First, Chicken manure. > > > > Estimation of the total yearly United States bio-diesel production > capability from chicken manure. > > > > Chicken manure weight = 0.21 lb/day > > > > The United States chicken population is (1,970,000,000) > > > > Average chicken waste (litter) production is 0.21 lb/day. The total yearly > litter production is as follows: > > > > 1,970,000,000 * 0.21 lb/day * 365 days * 1/2000 = 75,500,250 tons > > > > At 150 gallons of bio-diesel per dry ton of chicken litter > > > > 75,500,250 tons * 150 gallons = 11,325,037,500 gallons of bio-diesel per > year from chicken litter. > > > > Running total U.S yearly bio-diesel from United States manure production > is as follows: > > > > 11,325,037,500 gallons from chickens + 189,000,000,000 gallons from cow > manure = 200,325,037,500 total gallons of bio diesel per year. > > > > --------- > > > > Estimation of the total yearly United States bio-diesel production > capability from human waste sludge. > > > > The United States population is (310,000,000) > > > > Annual mass sludge per capita 64.4 pounds > > > > The total yearly sludge production is as follows: > > 310,000,000 * 64.4 pounds/year * 1/2000 = 9,982,000 tons/year > > > > Assuming a 40% moisture content, the dry weight of sludge = 9,982,000 * .6 > = 5,989,200 tons/year > > > > At 150 gallons of bio-diesel per dry ton of sludge -> 5,989,200 tons/year > * 150 gallons/dry ton = 898,380,000 gallons of bio-diesel per year from > human waste sludge. > > > > Running total U.S yearly bio-diesel from United States manure/bio-waste > production is as follows: > > > > 11,325,037,500 gallons from chicken litter + > > 189,000,000,000 gallons from cow manure + > > 898,380,000 gallons of bio-diesel per year from human waste sludge > > > > = 201,223,417,500 total potential gallons of bio diesel per year. > > ========================================= > > > > > > Estimation of the total yearly United States bio-diesel production > capability from swine waste. > > > > The United States swine population is (60,388,700) > > > > Swine are estimated to produce daily raw manure of as much as 8.4 percent > of body weight (urine and feces). > > > > Generally, growing-finishing pigs weighing 21 to 100 kg can be expected to > generate 0.39 to 0.45 kg of waste per day on a dry matter basis (Brumm et > al. 1980). > > > > > > .45kg (1 lbs) * 60,388,700 * 1/2000 *365 = 11020937 tons of swine > waste/year > > > > > > 150 gallons of bio-diesel/ton * 11,020,937 tons of swine waste/year = > 1,653,140,662 gallons of bio-diesel/year from swine waste > > > > > > ------------------------------------------------ > > > > Estimation of the total yearly United States bio-diesel production > capability from municipal solid waste. > > > > > > The United States Environmental Protection Agency estimates that in 2006 > there were 251 million tons of municipal solid waste, or 4.6 pounds > generated per day per person in the USA > > > > 310,000,000 people * 4.6 lbs/person * 1/2000 * 365 days = 260,245,000 tons > of municipal solid waste > > > > 150 gallons of bio-diesel/ton * 260,245,000 tons of municipal solid = > 39,036,750,000 gallons of bio-diesel/year from municipal solid waste > > > > Running total U.S yearly bio-diesel from United States > manure/bio-waste/solid waste production is as follows: > > > > 11,325,037,500 gallons from chicken litter + > > > > 189,000,000,000 gallons from cow manure + > > > > 898,380,000 gallons of bio-diesel per year from human waste sludge + > > > > 1,653,140,662 gallons of bio-diesel/year from swine waste + > > > > 39,036,750,000 gallons of bio-diesel/year from municipal solid waste = > > > > 241,913,308,162 gallons of bio-diesel/year(5,759,840,670 b/y --- > 15,780,385 b/d) total potential gallons of bio diesel per year from U.S. > waste streams. > > > > -------------------------- > > > > > > Because it is produced in massive concentrations, much of the bio-waste > produces water pollution in streams and rivers or is burned for electric > power production in meat processing plants or incinerated or landfilled. > Also anaerobic digestion converts the waste to a methane and carbon dioxide > rich biogas (sewage treatment) released to the atmosphere. > > > > All the minerals and nitrogen content from bio-diesel processing of the > animal waste can be reapplied to farm land as mineral fertilizers formed > from ash residue. > > > > > > ================================================================ > > Elimination of concentrated animal waste streams from the US biosphere > will save about $500,000,000 to a high estimate of $ one trillion in > medical costs and 3000 to 5000 deaths from food poisoning. > > > > http://www.nytimes.com/2010/12/16/business/16illness.html > > > > *In a pair of research reports made public on Wednesday, the **Centers > for Disease Control and > Prevention*<http://topics.nytimes.com/top/reference/timestopics/organizations/c/centers_for_disease_control_and_prevention/index.html?inline=nyt-org> > * said that about 48 million people a year get sick from tainted food, > down from the previous, often-cited estimate of 76 million. The number of > deaths estimated to come from food poisoning also went down, to about 3,000 > a year from 5,000. * > * * > > *The revision means that one in six Americans gets sick each year from > tainted food, not one in four, as the old study, conducted in 1999, > projected.* > > > > Also see > > > > http://www.key-group.cz/en/msop.php > > > > > > > > > On Sun, Jun 24, 2012 at 5:38 PM, <[email protected]> wrote: > >> In reply to Axil Axil's message of Wed, 20 Jun 2012 18:02:57 -0400: >> Hi, >> [snip] >> >The total US yearly manure production capacity is about 2,100,000,000 >> tons. >> >The MSOP can accomidate the 40% moisture content of which 1,260,000,000 >> >tons of dry content is estimated. >> >> ..but most of this manure is spread across grazing lands, not conveniently >> collected in feedlots. >> >> Regards, >> >> Robin van Spaandonk >> >> http://rvanspaa.freehostia.com/project.html >> >> >
