Biogas and anaerobic digestion made number one in HowStuffWorks' list of wacky alternative energy, and poop-to-energy biogas projects have proven popular on Discovery News too. From biogas in Haitian ...

Anaerobic digestion is the most common process used to reduce sewage sludge volume in the world. Digestion is a low-tech treatment process which has two high-volume byproducts which are relevant to ...

Americans waste a lot of food — about 133 billion pounds a year, or roughly one-third of all the food produced in the U.S. In addition to squandering money and throwing away a precious resource, all ...

This is a preview. Log in through your library . Abstract The formation of toluene in municipal anaerobic primary and secondary sludge digestion processes was investigated. Experiments were carried ...