Perspective of Non-metallic Mixed Waste Disposal from Printed Circuit Board
Expansion of the global market for electronic electric equipment (EEE), leads to a corresponding explosion in waste printed circuit board (PCB). Waste PCB contains a lot of valuable metals due to complexity of materials makeup, such as 20％ Cu, 11％ Fe, 4％ Pb, 300g/ton Au and 5~10kg/ton Ag, etc. In addition, waste PCB contains 27％ of plastics and 26％ of refractory oxides. However, a process of extracting precious metals from waste PCB results in mass of non-metallic mixed waste, which could hardly be utilized or disposed because of containing some toxic substances, such as halogenated flame retardants and heavy metals. The paper aims to give an insight into the domestic and foreign recycling and disposal technology for non-metallic mixed waste from PCB recycling and disposal, including pyrolysis for recycling oils, mechanical treatment for recycling as building material. In addition, the study in this article proposes a perspective technique for the mixed waste disposal.
PCB Non-metallic Waste Disposal Recycling EEE
Wei-feng JIA Hua-bo DUAN Kun HOU Shuang-yue LIU Jin-hui LI
Beijing University of Science and Technology, Beijing 100083, China Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China
国际会议
北京
英文
188-193
2007-08-20（万方平台首次上网日期，不代表论文的发表时间）