| Home | News| Living in China| MMS | SMS | About us | Contact us|
 Language Tips > Bilingual news
Updated: 2006-02-28 08:37

San Francisco to test turning dog waste into power


San Francisco to test turning dog waste into power

"As much as we love them, our pets leave a lot of manure behind them in yards and on the street and that can be a major source of contamination of groundwater." 

San Francisco, a leader in urban recycling, is preparing to enlist itscaninepopulation for a first in the United States: converting dogpoopinto energy.

Norcal Waste Systems Inc., the city's largest garbage company, plans to test collection carts and biodegradable bags in a city-center park popular with dog walkers.

A city study found that almost 4 percent of all the garbage picked up at San Francisco homes was from animal waste destined for the city's landfill, Norcal Waste spokesman Robert Reid said. San Francisco has anestimated120,000 dogs.

"The city asked us to start thinking about apilotprogram to recycle the dog poop in order to cut back adding more waste in landfills," Reid said.

Dogfecescould be scooped into a methane digester, a device that uses bugs and microorganisms to gobble up the material and emit methane, which would be trapped and burned to power a turbine to make electricity or to heat homes.

Dogs and cats in the United States produce about 10 million tonnes of waste a year, Will Brinton, an environmental scientist and owner-director of Woods End Laboratories in Maine, said.

"As much as we love them, our pets leave a lot of manure behind them in yards and on the street and that can be a major source ofcontaminationof groundwater," Brinton said.

European cities such as Zurich, Frankfurt, Munich and Vienna are operating biomass programs to turn waste into gas, he said.

San Francisco runs an aggressive program to recycle bottles, cans, paper and other trash and now diverts two-thirds of its garbage away from landfills.

The city's goal is a 75 percent diversion by 2010 and zero new waste in landfills by 2020.















 relating to or characteristic of the canids, especially a dog(犬科动物的,尤指狗)



pilot:serving as a tentative model for future experiment or development:(试点)





Go to Other Sections
Related Stories
· Beer flows from house taps in Norway
水龙头里出啤酒 挪威妇女感觉"身在天堂"
· Woman sells ad rights to pregnancy on eBay
拿人体打广告 孕妇肚子拍卖广告权
· Clocks in UK's armory against problem gambling
英国放开赌博业 时钟被"邀"防赌瘾
Copyright by chinadaily.com.cn. All rights reserved

None of this material may be used for any commercial or public use. Reproduction in whole or in part without permission is prohibited.