無機廢棄物(如焚化灰渣、淨水污泥、廢矽藻土與煤灰等)每年在台灣的產生量極大，其回收利用率低，且成份以無機為主，無法使用焚化處理，故大部分會以掩埋的方式來處理。如此大量的廢棄物進入掩埋場勢必會加快掩埋場飽和的速度，若未有妥善掩埋，甚至會對生態環境造成嚴重的影響。因此，處理無機廢棄物是刻不容緩的，本研究希望以回收再利用技術，將無機廢棄物進行再利用作為資材，以達到資源循環型社會的目標。

本研究主要針對無機泥碴ESF (Enhancement Silica Fume)及石油煉化裂解廢觸媒sFCCCs（sFCC catalysts）進行循環利用並高質化。ESF為傳統產業製造過程中所產生的無機污泥，其化學組成以無晶型的二氧化矽(SiO2)為主，其含量高達95%以上，並有高比表面積特性；sFCCCs為沸石結構，故同樣有高比表面積及多孔特性，所以兩者都具有發展成為中孔調濕塗料的潛力。本研究以無機泥碴ESF、半水石膏(β- CaSO4．0.5H2O)、矽酸鈉 (Na2SiO3)、丙烯聚合物與高嶺土為原料，配合簡易的程序製作出具有中孔洞(2～50 nm)的調濕塗料。透過調整ESF、sFCCCs及矽酸鈉兩者的比例，歸納出具最佳調濕能力及機械性能的配比，進行調濕性能測試，並與目前市售之商業調濕塗料進行比較。

研究結果顯示，無機泥碴ESF為原料製作調濕塗料之最佳樣品為C-0.4/0.05/0.1，以日本工業標準之建築塗料規範進行吸放濕試驗，其吸水量為309 g/m2，高於市售商業用塗料5倍；在模擬測試中，能有效控制濕度變化幅度在7%。另外，調濕塗料具有與市售商業用塗料相約的塗膜硬度；同時也具有大於99.99%的抗菌率，且在TCLP溶出試驗中，符合綠建材溶出規範。因此，以廢棄物循環再利用成資材是可行的，除了能解決無機泥碴掩埋的問題，同時也能以廢棄物轉化成高價值材料，符合資源循環型社會之理念。

The annual output of inorganic sludge was estimated to be 5.5 million tons in Taiwan. In general, sludge can be applied to improve nutrients in soil and also used as building materials. Actually, the recovery rate is low and most of the sludge would be deposed to landfill, which is the easiest way for waste treatments. However, it will cause some problems such as saturation and pollution. Therefore, recycling and valorization are economically viable and environmentally friendly. Indoor humidity environment is related to healthy and energy consumption. High relative humidity will promote mold, mildew, dust mites and bacteria growth rapidly. In addition, it also makes the feeling of body discomfort. Thus, “Humidity control materials” was developed in the country with high relative humidity problem, such as Japan, Taiwan, etc. In this study, humidity control coatings (HCCs) are prepared from enhancement silica fume (ESF) and spent fluid catalytic cracking catalysts (sFCCCs) from traditional industry. Experimentally, moisture adsorption-desorption performance of the humidity control materials increases as ESF increases; moreover, sFCCCs improve the performance on lower humidity range. The results show that HCCs are provided with mesopores structure as well as the moisture adsorbed value and content are respectively 309 g/m2 and 27.0%, which are better than commercial coatings. According to N2 adsorption-desorption analysis, the HCCs exhibit type-IV isotherms with hysteresis behavior of H3 loop, suggesting the mesoporous distributions ranging from 2-50 nm. Most importantly, HCCs possess good film hardness, 99.99% of antimicrobial efficacy and environmental friendliness according to the TCLP leaching tests.

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