廢棄活性碳微波再生及其吸附效率之研究

楊斾蓉

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廢棄活性碳微波再生及其吸附效率之研究

Regeneration and adsorption efficiency of waste activated carbon by microwave treatment

楊斾蓉 , Masters　　Advisor：駱尚廉　　

繁體中文

活性碳；微波再生；吸附RB19 ； Activated Carbons ； Microwave Regeneration ； RB19 adsorption

Abstract │ Reference (29) │ Altmetrics

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Activated carbons (AC) have been used widely in the water and wastewater treatment and water reclamation plant. Since the benefit/cost of AC has been considered, the regeneration of AC has played an important role both in the treatment process and the cost reducing. Comparing to traditional regeneration methods, the advantages of microwave radiation process include shorter regeneration time, better efficiency, lower cost, less carbon loss, lower energy consumption, and without secondary pollution and specificity of the adsorbate. The objectives of this study were to regenerate the waste AC, which have been regenerated twice, sampled from water purification plant in Kinmen. The microwave radiation process was used as the regeneration method. Physical and chemical characteristics of regenerated AC were investigated. The diffraction intensity of regenerated AC was determined by XRD, structure changes were observed by SEM, and the specific surface area was analyzed by BET. The adsorption efficiencies of waste and regenerated AC under different operation parameters, such as radiation power, adsorption time, and temperature were investigated by iodine number. The iodine number of waste AC in Kinmen is approximately 450mg/gAC. With 20 mins radiation and power of 100 to 750W, the iodine number of regeneration GAC can all reach more than 800mg/gAC and the regeneration PAC can all reach more than 1050mg/gAC with 10 mins radiation and power of 450W.The iodine number will decrease with power higher than 850W resulted from carbon structure ruined. With using microwave radiation, not only the adsorption efficiency of regeneration AC is two times better than that of original waste AC, but also reducing the AC costs in Kinmenwater purification plant. Therefore, the microwave radiation process hasgreat potential for regeneration of waste AC.

Reference ( 29 ) 〈TOP〉

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連結：
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連結：
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連結：
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連結：
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