| 英文摘要 |
The global usage of bio-plastics in 2011 was 850,000 tons, mainly applied in package and fabric industries. In contrast, Taiwan had imported 8,854 tones of bio-plastics raw materials, about 79％ were used to make environmental tableware and disposable containers. After exploring the feasibility of various mix of bio-plastics and other plastic containers with repetitive experiments - sorting, crushing, granulating, mixing, injection-molded, we found the best conditions to blend the r-PLA, PLA and PC are (1) the impurity rate of waste PLA containers should lower than 1％, (2) the blend ratios of r-PLA/PLA purity were 50:50, and the blend ratios of r-PLA/PC purity and polymeric mixture were 23.75:71.25:5. In addition, for promoting the recycle of waste bio-containers, three propaganda campaigns were held in Ilan County, Taichung City and Kaohsiung City, and in total there were 170 persons participated. This project has completed the planning on treatment factories to recycle waste pesticide containers. The proper procedures to treat waste pesticide containers are to sort, smash, wash, dehydrate, and sold them at last. In order to control the secondary contamination, exhaust gas treatment equipments are used to blockade the area filled with peculiar odor, then eject, wash and absorb with activated carbon to remove the odor. In addition, wastewater treatment equipments are used to collect wastewater through precipitation, mix thoroughly, and use ozone advanced oxidation processes to meet with the effluence standard before draining waste water out. Regarding to the measure and inception mechanism of emergency response to waste containers used for pesticide and special environmental sanitation, the government allows those waste containers to be burnt in counties’ or cities’ public incinerators as long as the treatment factories have shut down for over 5 months, or when the factories treat waste containers less than 100 tons within successive 6 months. After literature reviewing the recycling institution for waste pesticide and environmental sanitation containers in foreign countries, we found that the recycling is undertaken by autonomous organizations in Germany and US, In Japan, waste pesticide containers are collected and classified by famer’s association, either recycled or burnt. Besides, after investigating the taxation base on waste pesticide and environmental sanitation containers, we suggest to also tax those factories which produce technical grade pesticide. Meanwhile, we modify the formula of recovery rate to improve the accuracy of estimating Taiwan’s recovery rate.
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