Zero Emissions by Forming Networks among Various Production Processes in Different Types of Industries

(1)产出-投入和转化技术数据库的建设，转化技术评价标准的提出。通过对8500家工厂的问卷调查和访谈，对各种生产过程中物料的流动情况进行了调查，获得了建立零排放网络所需的基本投入-产出和产出-投入数据库。还建立了关于从废物到原料的实际转化技术（转换器）的数据库。并提出了该转化技术的评价标准。(2)转化技术的发展为了实现不同类型行业的各种生产过程之间的网络化，实现零排放，本工作开发了各种转化技术。例如，吉田博之：-利用亚临界水处理进一步处理鱼类废物以快速获取有用资源的基础研究，西司Wataru…More -有机废物再利用的比较评估，Tsutomu Imaoka -利用液化天然气的废冷热对有机固体废物进行本地零排放系统，Kiyohiko Nakasaki -从污泥中生产可生物降解塑料，ilichiro Naruse -从固体废物中形成先进资源。以上研究基本完成。利用上述数据库和本研究开发的网络模拟器，分别构建了爱知县丰桥地区和宫城县工厂之间的零排放网络。在宫城县，仅使用输出-输入数据库时，网络连接的工厂数量为30家。然而，当引入转换技术后，这一数字增加到1178，由此可见转换技术对零排放网络建设的重要性。在此基础上，提出了在丰桥地区建立塑料产业网络的构想。网络建设前的垃圾量为174 t/月，网络建设后的垃圾量减少到131t/月。少

(1) Construction of Database of Output-Input and Conversion Technologies, and Proposal of Criterion for Evaluation of Conversion Technology A survey based on questionnaires for 8500 factories and interviews on how materials move as various productive processes go on was conducted and basic input-output and output-input database needed for the establishment of zero-emission network were obtained in this work. Database on actual conversion technologies (converter) from waste products to raw materials was also made. Moreover, the criterion for evaluation of such conversion technology was proposed.(2) Development of Conversion Technology In order to attain zero emission through networking among various production processes in different types of industries, various conversion technologies were developed in this work. For example, Hiroyuki Yoshida : - a fundamental study on further treatment of fish waste to obtain useful resources very fast using sub-critical water treatment, Wataru Nishiji … More ma - comparison evaluation of the reuse of organic wastes, Tsutomu Imaoka - the local zero emission system of the organic solid wastes using waste cool heat from LNG, Kiyohiko Nakasaki - production of biodegradable plastic from sludge, and lchiro Naruse - the formation of advanced resources from solid wastes. Above researches are almost completed.(3) Construction of a local zero emission network The zero emission networks between the factories in Toyohashi area (Aichi Prefecture) and Miyagi Prefecture were proposed respectively using the database mentioned above and the network simulator developed by this research. In Miyagi Prefecture, when only an output-input database was used, the number of connection of the network were 30 factories. However, when conversion technologies were introduced, the number increased to 1178, and it became clear how conversion technology is important for construction of a zero emission network. Moreover, the network in plastics industry was proposed in the Toyohashi area. The amount of waste before network construction was 174 t/month but after construction of the network, it decrease to 131t/month. Less