Evaluation of Environmental Impact for Residue from Electrical Equipment Recycle Facility

在日本，80%的废旧家电是通过法律的手段由家电回收设施进行回收的，20%的废旧家电是通过地方政府的废旧家电粉碎设施进行处理的。每个设施的主要流程相似。但有些部分的处理是不同的，如印刷电路板。这主要是受设备成本和场地等因素的影响。2）包括电子废弃物在内的垃圾和不可燃废弃物的研究我们考察了日本西部地区F市的垃圾和不可燃废弃物粉碎设施。该设施的入口包含约10%的家用电气设备。对该设施的残渣进行了浸出试验（JLT 46）、pH依赖性试验和一些特性试验。这些残渣中含有一些重金属。但浸出浓度低于标准值。在物理成分中，塑料占43%，玻璃占26%，石头占19%，金属占3%，印刷电路板占2%。重金属含量与F市不同。究其原因，主要是由于采集方法和处理系统的不同，需要继续进行一些试验和其他设施的建设。

In Japan, 80%of waste home electrical equipment was recycled by electrical equipment recycling facility under legal methods.And 20%of waste home electrical equipment was treated by balk and incombustible waste crashing facility of local government.In this research, we investigated for electrical waste recycling and treatment.1)Research for material and residue flow of electrical equipment recycling facilityWe investigated 2 facilities. Main flows of each facility were similar. But some part of treatment was different such as printed board. This reason was influences of cost and place of facilities.2)Research for balk and incombustible waste which include electrical wasteWe investigated balk and incombustible waste crashing facility of F city in west area in Japan. Inlet of this facility contained about 10% home electrical equipment. Residue of this facility was tested by leaching test (JLT46), pH dependent test and some characteristic tests. This residue contained some heavy metals. But leaching concentration was lower than standard value. In physical composition, 43% was plastics, 26% was glasses, 19% was stones, 3% was metal and 2% was printed board.We investigated balk and incombustible waste crashing facility of T city in east area in Japan. Contents of heavy metals was different from F city. This reason was thought about the difference of collecting methods and treatment systems.We need to continue some tests and other facilities.