Summary of Research Project Results under JSPS FY2001 "Research for the Future Program"

　　　The present research aimed to develop a novel technology for wastes reclamation to establish recycle-based emission minimized society. The effect of reaction conditions such as temperature, pressure, reaction time, etc. on the production of amino acids from hydrolysis of proteinaceous wastes such as fish wastes and silk wastes in high temperature and pressure water was studied comprehensively. The type operations of reactors utilized for the present research are semi-batch, batch and continuous flow under the sub- and super critical condition. The degradation pathway of the proteinaceous materials to amino acids and then to organic acids followed by mineralization was investigated and clarified under various reaction conditions. The degradation of various amino acids and polypeptides were also studied for the kinetic analyses of reactions. These results were effectively utilized to make a model to estimate an optimal reaction condition to increase the yield of target materials.
　　　The similar investigation was carried out for the degradation of woody wastes to produce value added materials for recycle. The reaction pathway and inventory of possible reactions occurred in the sub- and super critical water were summarized and categorized. The information can be utilized to estimate the reaction for the treatment of cellulose, hemicelluloses and lignin in sub- and super critical water. Multi-stage reaction process was developed using a screw feeder pump for the simultaneous treatment of cellulosic wastes and extraction of value added materials produced. Other applications of the sub- and super critical water reaction for wastes recycle such as plastics, carbon fiber reinforced plastics, waste cast sand and so on were developed as well. It was shown that the sub- and super critical water reaction is a promising technology for various areas from the environment conservation to the industrial production.

1.Research Institution		Toyohashi University of Technology

2.Research Area		Integrated Fields

3.Research Field		Causes and Effects of Environmental Loading and its Reduction

4.Term of Project		FY 1997 ～ FY 2001

5.Project Number		97I00504

6.Title of Project		Development of Wastes Recycle Technologies Using High Temperature and High Pressure Treatments

Name	Institution,Department	Title of Position
Koichi Fujie	Toyohashi University of Technology, Ecological Engineering	Professor

Names	Institution,Department	Title of Position
Akiyoshi Sakoda	University of Tokyo, Institute of Industrial Science	Professor
Hiroyuki Daimon	Toyohashi University of Technology, Ecological Engineering	Assistant
Masaki Sagehashi	University of Tokyo, Institute of Industrial Science	Assistant

Summary of Research Project Results under JSPS FY2001"Research for the Future Program"

Summary of Research Project Results under JSPS FY2001
"Research for the Future Program"