熱改質竹廢材對重金屬離子溶液之移除

in National workshop (full text oral presentation), 國內研討會(全文口頭發表)
標題熱改質竹廢材對重金屬離子溶液之移除
出版類型國內研討會(全文口頭發表)
出版年度2009
AuthorsFu-Lan Hsu, 許富蘭, 黃國雄, & Hong-Lin Lee 李鴻麟
會議名稱2009海峽兩岸林產科技研討會
出版日期Oct 27 2009 12:0
會議地點林業試驗所
其他編號0000
中文摘要

The heavy metal removal efficiency of Phyllostachys pubescens was greatly influenced by thermal treatment. After exposed to 200, 250, 300, 350, 400, 500, 600, 700, 800, 900, or 1000℃ for 60 min, thermally modified P. pubescens waste exhibited 3 different stages of heavy metal removal efficiency. First, the heavy
metal removal ability increased as the heating temperature increased, and reached to maximum at 300℃. Cu (II), Pb (II), Cd (II), and Ni (II)-removal efficiencies were greatly improved as compared to the untreated controls from 18.23, 47.76, 35.80 and 12.96 to 72.09, 92.72, 82.46 and 57.78%, respectively. Secondly, metal removal
ability of P. pubescens was significantly decreased at around 400℃. Its metal removal efficiencies decreased to 10.03, 30.67, 8.55 and 0.66% for Cu (II), Pb (II), Cd (II), and Ni (II), respectively, showing less efficiency than the untreated controls. Thirdly, the heavy metal removal ability of treated bamboo increased again as heated from 500 to 1000℃. By thermal modification, P. pubescens waste not only can remove toxic heavy metals, but also can release essential elements suck as K (I), Ca (II), Mg (II), and Na (I). It is potential for thermally modified P.
pubescens as a boiabsorbent because of its efficiency and safety.

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