Research on the Wet Process Conditions of the Separation of Aluminum and Plastic in the Post-Consumer Aseptic Packages
The recycling of post-consumer aseptic packaging composed of paper, low-density polyethylene (LDPE), and aluminum is of great recycling significance. The recovering of paper, the major component, was conducted through a Hydrapulper apparatus. The wet separation conditions of the remaining part, a laminated sheet composed of LDPE (0.03～0.08mm) and aluminum foil (0.02～0.03mm)(Al-PE), was studied in this paper. The separation effect of different separation reagents was compared, and the major process influencing factors, such as the separation reagent concentration, reaction temperature, liquid to solid ratio and solid size was studied. By orthogonal design experiment and variance analysis based on three evaluating indicators, the optimum condition of aluminum and LDPE complete separation using methanoic acid as separation reagent was obtained: 4 mol/L of methanoic acid concentration, 60℃ of reaction temperature, 60L/kg of liquid to solid ratio and 5×5cm of solid size, under which the separation rate would reach 100%.
Post-consumer aseptic packaging Al-PE separation wet process orthogonal design experiment variance analysis
ZHANG Ji-fei YAN Da-hai HUANG Ze-chun LI Li LI Zhong-he
Research Institute of Solid Waste Management, Chinese Research Academy of Environmental Sciences,Bei Research Institute of Solid Waste Management, Chinese Research Academy of Environmental Sciences,Bei School of Chemical and Environmental Engineering, China University of Mining & Technology, Beijing 1
国际会议
The 3rd International Conference on Waste Management and Technology(第三届固体废物管理与技术国际研讨会)
北京
英文
112-121
2008-11-05（万方平台首次上网日期，不代表论文的发表时间）