李篤中2006-07-252018-06-282006-07-252018-06-282002-05-21http://ntur.lib.ntu.edu.tw//handle/246246/9290本計劃探討以低功率超音波破碎對聚電解質絮凝後之活性污泥進行前處理，以增進其厭氧消化效率;與先前研究相比，在此所施用之功率顯然偏低而不 足以完全破碎污泥膠羽顆粒。從觀測消化過程中甲烷的產量與顆粒特性，可以發 現以陽離子型聚電解質絮凝污泥之後會在消化初期增加甲烷氣之產量，但在後期 則有抑制產氣之情形;在以低功率超音波 (0.33 Watt/ml) 處理二十分鐘後，甲烷 氣的產生都明顯的增加，並消除了先前陽離子型聚電解質會抑制產氣之情形。在 本文中將進一步探討其中之機制。In this project the polyelectrolyte-flocculated biosolids were pretreated by ultrasonication in low power level to enhance the digestion performance. Compared with the previous studies, the ultrasound applied here could not completely disrupt the floc particles. While monitoring the time evolution of methane production and floc properties, it is shown that cationic polyelectrolyte flocculation enhanced the methane production in the initial stage of biosolids digestion but inhibited in contrary in the later stage. After treated by low-power ultrasonication (0.33 Watt/ml) for 20 minutes, the methane production of biosolids largely increased and reduced the negative effects brought by cationic polyelectrolyte flocculant.application/pdf528973 bytesapplication/pdfzh-TW國立臺灣大學化學工程學系暨研究所厭氧消化超音波破碎甲烷產氣膠羽特性reporthttp://ntur.lib.ntu.edu.tw/bitstream/246246/9290/1/902211E002048.pdf