活性碳循環再利用技術開發

Development of an activated carbon recycling technology

曾文陽(Wen-Yang Tseng)

指導教授 ： 石燕鳳

朝陽科技大學/理工學院/應用化學系/碩士(2020年)

摘要

活性碳本身具有很高的比表面積、微孔容積，因此可以吸附工業上所排放的揮發性有機化合物(Volatile Organic Compounds，VOCs);本研究希望透過加入硫酸並加熱，讓使用過後的廢棄活性碳可以去除活性碳表面附著之固態硼(B)、矽(Si)及吸附於活性碳孔隙內暫停留之氨氣(NH3)。通過此方法在實驗時即可明顯地用肉眼看出表面的白色顆粒浮出液體表面。實驗結果顯示在硫酸濃度為5%時，有最好的去除力，去除率為16.43%，當硼、矽顆粒被去除後，1克活性碳所吸附的碘量從565.64 mg/g增加到642.53mg/g，假比重(Bulk Density)也從0.6691 g/ml下降到0.5694 g/ml，代表孔洞被清空出來，可以達到再生的目的。

關鍵字

活性碳 ； 活性碳再利用 ； 碘值 ； 假比重

並列摘要

Activated carbon itself has a high specific surface area and micropore volume, so it can adsorb industrially emitted volatile organic compounds (Volatile Organic Compounds, VOCs). This study used sulfuric acid and heat to treat the waste activated carbon. Then, solid boron (B), silicon (Si) attached to the surface of activated carbon and ammonia gas (NH3) suspended in the pores of activated carbon can be removed. By this method, the white particles on the surface can be clearly seen from the surface of the liquid during the treating process. The experimental results show that when the sulfuric acid concentration is 5%, the best removal power is 16.43%. After the boron and silicon particles are removed, the amount of iodine adsorbed by 1 g of activated carbon increases from 565.64 mg / g to 642.53 mg / g, the Bulk Density also decreased from 0.6691 g/ml to 0.5694 g / ml, which means that the holes are emptied out, and the purpose of regeneration can be achieved.

並列關鍵字

Activated carbon ； Activated carbon recycling ； Iodine value ； Bulk Density

參考文獻

1. 黃博揚，活性碳作為揮發性有機污染物濃度緩衝及應用特性之研究，國立中興大學環境工程學系碩士論文，2011年。

2. 台灣帝凱股份有限公司 活性碳介紹http://www.taiwandiesel.com.tw/Activated-carbon.html

3. E.A. El-Sharkawy, A.Y. Soliman, K.M. Al-Amer, Comparative study for the removal of methylene blue via adsorption and photocatalytic degradation, Journal of Colloid and Interface Science 310 (2007) 498-508.

4. D. Mohan, K.P. Singh, V.K. Singh, Wastewater treatment using low cost activated carbons derived from agricultural byproducts—A case study, Journal of Hazardous Materials 152 (2008) 1045-1053.

5. S. Babel, T.A. Kurniawan, Low-cost adsorbents for heavy metals uptake from contaminated water: a review, Journal of Hazardous Materials 97 (2003) 219-243.