Anaerobic Digesters as a Tool for California’s Clean Transportation Efforts

Source: ACT News | January 19, 2018

As one of the most populous states in the nation and a center of agricultural activity, California faces a waste disposal problem. Organic waste sent to municipal waste water treatment plants and landfills from cities, businesses, industry and agricultural operations not only take up significant space but are also a significant, if lesser-known, source of greenhouse gas (GHG) emissions. In fact, California’s largest single source of fugitive methane, a powerful greenhouse gas with a global warming potential 28 to 36 times higher than carbon dioxide, is the state’s dairies. In another example, uncontrolled decomposition of food and green waste in landfills leads to heavy production of methane gas, of which 34-51% escapes the typical landfill capture system. With proper collection, however, and refinement through anaerobic digestion, the energy-rich gases seeping from our waste management systems can be processed into renewable replacements for diesel and other fuels.

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