Abstract
The Integrated-administration association of NANTAN is located in the Tajima district of northern Hyogo. The NANTAN facility was completed in May, 2013. It is an efficient materials-and-fuel recovery facility, which received the recycling-society promotion subsidy from the Ministry of Environment except for power generation equipment. The facility has a combined system that integrates biogas equipment run at a high temperature using dry-type methane fermentation and heat recovery equipment through incineration. This is first of its kind to be completed as a municipal facility in Japan. A special feature of the facility is that it does not require a separate collection of wastes by residents because a mechanical crushing/sorting system has been adopted for the pretreatment of wastes. Furthermore, the system is receiving great attention because the biogas equipment uses the electric power purchase system by Feed-in Tariff.
The NANTAN facility is an advanced model of biomass energy utilization for a small-scale waste treatment plant. This paper reports on the following features of the facility: circumstances surrounding facility construction, correspondence with FIT, facility outline, crushing/sorting device and characteristics of sorted waste, methane fermentation equipment, material balance and electric power balance.
