Host: Japan Society of Material Cycles and Waste Management
The problem of livestock excretion disposal is issuing recently because of collectivization and scale-up of the livestock industry. Livestock wastewater is a kind of high-concentrated organic wastewater, so it is treated by anaerobic digestion process because treating by aerobic has a lot of restrictions from technical aspect. Anaerobic process is possible to decompose the organic matters and this process generate end product a little. Futhermore, it can remove intestinal parasites and produces the bio-gas which contains methane. But Anaerobic process is difficult to operate because of low temperature in the field. Therefore, to operate anaerobic process in the field, autothermal aerobic digestion has to be applied to transfer a heat. The object of study is to research treatment efficiencies, the operation property and biogas productivity by the new-type reactor which is connected the anaerobic process and the autothermal aerobic process.
