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Disposable diaper has been used in order to handle urine and feces conveniently. At present the amount of disposable diaper waste increases gradually. Incineration and landfill have been the only ways to dispose of disposable diapers. However, if they are disposed by landfill, decomposition will take more than one hundred years. In addition, another way of dispose incineration has caused air pollution. Therefore, it is necessary to study recycling process for disposable diaper since plastic and wood fibers of diaper are useful materials to recycle. In this study, pulping condition of disposable diaper waste was studied in order to effectively separate the components. Recovery rates of plastic and fibers were analyzed under different pulping conditions. It was found that optimum pulping consistency was 5%, time was 60 minutes, temperature was 50°C, and cut size is 21 cm×21 cm. The recovery rate of plastic and fibers can be achieved above 70% under the optimum pulping condition.

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Abstract-In this talk, inkjet-printed structures on paper and other polymer substrates are discussed as means for low-cost mass-production of next generation wireless devices and Wireless Sensor Nodes. Three sample prototypes are outlined. The first system demonstrates a gas sensing prototype for home land security applications, where printed carbon nanotubes (CNTs) are utilized to sense ammonia gas traces. The second system demonstrates the potential of using printed electronics in producing low-cost location-finding systems for health-care applications. The third prototype shows the feasibility of using the printed technology for enabling wireless communications in the mm-Wave frequencies.