Evaluation of Environmental Impact for Residue from Electrical Equipment Recycle Facility

在日本，80%的家用废旧电器都是通过合法的方法，由电器回收设施回收的。20%的家用废旧电器采用了地方政府的不燃垃圾回收设施进行处理。在本研究中，我们探讨了电子废弃物的回收和处理。1)电气设备回收设施的物料及残渣流动研究。每个设施的主要流程是相似的。但有些部分的处理方式不同，比如印制板。其原因是成本和设施位置的影响。2)对包括电气废弃物在内的炭黑和不燃废弃物的研究我们对日本西部地区F市的炭黑和不燃废弃物撞击设施进行了调查。该设施的入口含有约10%的家用电器设备。采用浸出试验（JLT46）、pH依赖性试验和一些特性试验对该装置的残留物进行了检测。这种残留物含有一些重金属。但浸出浓度低于标准值。在物理成分中，43%是塑料，26%是玻璃，19%是石头，3%是金属，2%是印制板。对日本东部地区T市的不燃垃圾焚烧设施进行了调查。重金属含量与F市不同。这是由于收集方法和处理系统的差异造成的。我们需要继续进行一些测试和其他设施。

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.