Masahito Yamauchi*, Tokio Hirata*, Yasushi Matsufuji**, Yuji Maeno*, Megumi Mihara***, and Kenjiro Yoneyama****

* Dept. of Civil Engineering, Kagoshima National College of Technology
** Dept. of Civil Engineering, Fukuoka University
*** Dept. of Chemistry, Kagoshima National College of Technology
**** Aship Co., Ltd.

+ Correspondence should be addressed to Masahito Yamauchi:
(1460-1 Shinko, Hayato-cho, Aira-gun, Kagoshima 899-5102 Japan)

Abstract

The treatment and disposal on land of waste stillage from shochu distillery (hereafter called waste stillage) is mainly classified into two types: resource recovery, such as fertilization (farmland reduction) and feeding, and incineration plant treatment. Every year, the latter has been more commonly used, in view of the ban in the year 2001, on ocean-dumping. This research was to attempt to make reborn paper of low or middle quality by adding some amount of old newspaper to waste stillage. As a result, it is clear that reborn paper is able to be produced under the condition of low pressure (0.55kPa-2.87kPa) and mixing ratio (1%-7%) of old newspaper. Especially when the pressure is 0.55kPa and the mixing ratio of old newspaper is 7%, the reborn paper holds the waste stillage completely. This research was also to clarify the physical and mechanical properties of the reborn paper made from waste stillage and old newspaper under each condition.

Key words: waste stillage, old newspaper, effective utilization, reborn paper, resource recovery, mechanical property