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New Recovery Technology of Valuable and/or Toxic Metals by Utilizing Industrial Waste Incineration Kiln

利用工业垃圾焚烧窑回收有价和/或有毒金属的新技术

基本信息

批准号：
13480175
负责人：
KAMEYA Takashi
金额：
$ 5.82万
依托单位：
Yokohama National University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2001
资助国家：
日本
起止时间：
2001 至 2003
项目状态：
已结题

项目摘要

In this research, in order to recycle used products, which contain valuable resources and toxic metals, industrial waste incineration kiln was focused and investigated positively under cooperation with conventional waste treatment industries. Two kinds of researches were done in order to develop a new engineering system for of valuable and toxic substances ; "material flow analysis of used product containing valuable resources and toxic metals and its environmental load potential analysis" and "development of safety incineration technique of circuit board containing valuable resources and toxic metals".In "material flow analysis of used product containing valuable resources and toxic metals and its environmental load potential analysis", number of domestic shipment, product average weight, number of domestic disposal, and domestic disposal weight were estimated for 95 items of home electronic products. Moreover, products with large domestic disposal weight were collected, disassembled, and measured material contents and elution amounts of valuable resources and toxic metals.In "development of safety incineration technique of circuit board containing valuable resources and toxic metals", generation of toxic substances produced in incineration of flame retardants which were contained in circuit board and covering body of electronic product. Especially, toxic incineration products, such as carbon monoxide (CO) and semi-non volatile organic brominates (SNVOBr), were measured in various experimental conditions, such as type of circuit board, type of flame retardant, amount of incineration waste, incineration temperature, gas contact time, and so on.

在本研究中，为了回收利用含有有价值的资源和有毒金属的废弃物，工业废物焚烧窑是重点，并与传统的废物处理行业合作进行了积极的研究。为了开发一种新的有价有毒物质的工程系统，进行了两方面的研究;“含有价资源和有毒金属废弃物的物质流分析及其环境负荷潜力分析”和“含有价资源和有毒金属电路板安全焚烧技术的开发”。含有有价值资源和有毒金属的使用过的产品的物质流分析及其环境负荷潜力分析”，国内装运数量，产品平均重量，国内处置数量，及家居弃置重量。此外，收集国内废弃量大的产品，进行分解，测定有价资源和有毒金属的物质含量和溶出量。在“开发含有有价资源和有毒金属的电路板的安全焚烧技术”中，分析了电子产品的电路板和覆盖体中含有的阻燃剂在焚烧时产生的有毒物质。特别是，有毒焚烧产物，如一氧化碳（CO）和半非挥发性有机溴化物（SNVOBr），在不同的实验条件下，如电路板的类型，阻燃剂的类型，焚烧废物的量，焚烧温度，气体接触时间，等等。