Making of Reborn Paper and its Optimum Conditions using Waste still age from Sweet Potato‐shochu Production

本研究では、焼酎蒸留粕の中で特に処理に困窮している甘藷焼酎蒸留粕に、有効利用法の確立が今尚不十分である新聞古紙を添加し、中・低品位の蘇生紙を作製することを試みた。その結果、低圧力((155kPa～2.87kPa)のもと、新聞紙の混合比1%～7%において蘇生紙を作製することができた。特に、圧力ll55kPa、新聞紙の混合比7%では焼酎蒸留粕を蘇生紙内に完全保持することが判明した。このことから、これまで多くの問題を抱えてきた焼酎蒸留粕の固液分離、嫌気性処理等の生物処理過程が完全に除去でき、焼酎蒸留粕中の有効成分を効率良く利用することが可能となった。The treatment of waste stillage from sweet potato-shochu distillery (hereafter, waste stillage) on land is mainly classified into resource recovery, such as fertilizing (farmland reduction ) and feeding, and incineration plant treatment. The latter has been more commonly used every year in view of 2001's ban on ocean-dumping. However, waste stillage can be reused efficiently from the view-point of effective utilization of unused energy and of global environment load reduction in that it doesn't include any hazardous substance. This research was to attempt to make reborn paper of low or middle quality by adding some amount of old newspaper, which hasn't obtained effectiveutilization, to waste stilla.ge .As a results reborn paper was made under low pressure (0.55kPa~2.87kPa ) and old newspaper mixing ratio(1%~7%). Since it keeps most of waste stillage, especially under the pressure 0.55kPa and old newspaper mixing ratio 7%, solid-liquid separation and biological treatment process, such as anaerobic treatment, can be well removed and effective ingredients in waste stillageare considered to be used effciently