Digestate Uses and Abuses

摘要

There is anecdotal evidence that humans have been generating bio-gas for heating as far back as the 1 Oth century B.C. The first anaerobic digester in England was constructed in 1895 with the technology later reaching North America. The many advantages of anaerobic digestion include the fact that it is net energy positive, which means more energy is produced in the form of methane than is required to keep the digester warm. It can turn a cost, such as the waste management of organics, into revenue, through the sale of the heat or electricity produced from burning methane gas. But for all its advantages, anaerobic digestion is not without its challenges.