Behold the power of poop
Wednesday, February 22, 2006; Posted: 1:11 p.m. EST (18:11 GMT)
SAN FRANCISCO, California (AP) -- City officials are hoping to harness the power of dog waste in this dog-friendly city where animal feces make up nearly 4 percent of residential waste.
San Franciscans already recycle more than 60 percent of their garbage, but officials hope to turn into energy the 6,500 tons (5,897 metric tons) of dog waste a year -- nearly as much as disposable diapers, according to the city.
Within the next few months, Norcal Waste, a garbage hauling company that collects San Francisco's trash, will begin a pilot program under which it will use biodegradable bags and dog-waste carts to pick up droppings at a popular dog park.
The droppings will be tossed into a contraption called a methane digester, which is basically a tank in which bacteria feed on feces for weeks to create methane gas.
The methane could then be piped directly to a gas stove, heater, turbine or anything else powered by natural gas. It can also be used to generate electricity.
mercredi, février 22, 2006
This is genius! And proof positive that one person's (er, dog's) trash is another person's treasure. I wonder if this can be applied to human waste. Seriously.