Give Now

A Moment of Science

The Power in Dog Doo

Many European farms have been turning animal waste into biofuel for 20 years now.

pet waste sign

Photo: kenny_lex (flickr)

Not only are they going to recycle pet waste from residential garbage, but they're going to pick it up from the city's dog parks.

Here’s a surprising fuel source: dog doo.

Many European farms have been turning animal waste into biofuel for 20 years now.

The city of San Franciscans is launching a program to recycle the waste from its 120,000 plus pooches and other pets. It’s estimated that about 3.8% of their residential garbage collected is composed of pet litter. They want to reduce that number to zero. Not only are they going to recycle pet waste from residential garbage, but they’re going to pick it up from the city’s dog parks.

Since we feed our dogs and cats such rich diets, their feces have high energy potential. The feces contain bacteria called methanogens that, under the right conditions, convert the organic matter in feces to methane gas. San Francisco will collect its pet feces in biodegradable bags and then run them through a tank, where the natural process of methanogenesis will be exploited to produce methane gas. The gas can then be piped directly into homes.

  • http://ecologic-llc.com/ Biodegradable Packaging

    Packaging waste forms a significant
    part of municipal solid waste and has caused increasing environmental concerns,
    resulting in strengthening various regulations aimed at reducing the amounts
    generated.  Among other materials, a wide range of oil-based polymers is
    currently used in packaging applications.  These are virtually all
    non-biodegradable, and some are difficult to recycle or reuse due to form
    complex composites having varying levels of contamination.  Recently,
    significant progress has been made in the development of biodegradable
    plastics, largely from renewable natural resolution.

Stay Connected

What is RSS? RSS makes it possible to subscribe to a website's updates instead of visiting it by delivering new posts to your RSS reader automatically. Choose to receive some or all of the updates from A Moment of Science:

Support for Indiana Public Media Comes From

About A Moment of Science

Search A Moment of Science