COMBINED APPARATUS FOR PRODUCING BIOGAS AND COMPOST, BIOGAS PRODUCING APPARATUS AND METHOD OF CHANGING BIOGAS APPARATUS TO FERMENTER AS COMPOSTING APPARATUS

摘要

PPROBLEM TO BE SOLVED: To improve a conventional biogas apparatus by simplifying a treatment after spent biomass is composted. PSOLUTION: The combined apparatus for producing both of the biogas and the compost is provided with the fermenter 2 provided with a biogas outlet 8 and a purge gas inlet 24 and operated by a batch system, a biogas path 12 connected to the biogas outlet 8 to be switched, a waste gas stack 20 and a waste gas combustion part 22, a waste gas path 26 connected to the purge gas inlet 24 to be switched and capable of supplying a carbon dioxide-containing waste gas, an outside air path 28 capable of supplying outside air, a control means 30 for switching and connecting them to each other and a measuring means having a first measuring sensor 32 for detecting the concentration of methane in a gaseous mixture discharged from the fermenter 2, connected to the control means 30 and a second measuring sensor 34 for detecting the concentration of carbon dioxide. PCOPYRIGHT: (C)2010,JPO&INPIT