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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/3267


    Title: 資源化多孔陶瓷擔體處理工業區綜合廢水之研究;Evaluation of waste-derived porous ceramic as microbial carrier of biofilter to treat industrial wastewater
    Authors: 楊淑鉢;Shu-Po Yang
    Contributors: 環境工程研究所碩士在職專班
    Keywords: 多孔陶瓷;實場;擔體;固定式生物膜;資源化;porous ceramics;packing ratio;biofilter;waste-derived carrier
    Date: 2005-07-09
    Issue Date: 2009-09-21 12:13:45 (UTC+8)
    Publisher: 國立中央大學圖書館
    Abstract: 工業廢水以傳統的生物處理法處理時,因廢水中含有難被生物所分解之合成有機物質,常常造成出流水之化學需氧量(COD)值偏高,致無法達到放流水標準。為能有效解決此問題,遂有許多研究利用固定式生物膜法的微生物菌種類多樣化的特性,及提供細胞較長的停留時間,開發新型廢水處理程序,藉以提昇生物處理之效果。其用來作為微生物附著生長之擔體,目前多為原物料所生產,如紅木、ABS、氯乙烯、聚丙烯…等材質製成,雖然能解決廢水處理的問題,但隨之衍生的是使用後擔體廢棄所造成之廢棄物清理與最終處置問題。 本研究乃應用無機性污泥資源化之多孔陶瓷,作為廢水固定生長式生物處理之擔體,因其具有高比表面積與再生使用之特性,進行工業區綜合廢水處理特性研究。建置填充陶瓷擔體之反應槽廢水實驗模型,形成陶瓷擔體表面附著生物膜之好氧性系統,引入台中工業區聯合污水處理廠之進流廢水,控制氫離子(pH)濃度在6.5-7.5,比較反應槽之多孔陶瓷擔體填充率10 %及30 %系統之處理效果,另變換不同水力停留時間(HRT 4, 6, 8, 12 hrs)以增加污染物負荷,進行實場之探討。 根據本研究實驗,可獲得下列結果: 1. 反應槽擔體之微生物培養,以工業區污水廠二沉池活性污泥植種培養較以廢水直接培養為快,故陶瓷擔體以活性污泥植種可在較短的時間使系統正常運作,並達到設定之去除效率。 2. 不同進流容積負荷條件下,反應槽擔體填充率30 %系統之污染物去除率高於10 %系統,當容積負荷增加時更益顯著,顯示陶瓷擔體含量高之系統具有活性較大及較高之微生物量。 3. 擔體填充率30 %系統在不同污染物容積負荷下,為能獲得良好之出流水質,控制COD容積負荷≦1.11 kg/m3-day、BOD容積負荷≦1.12 kg/m3-day、SS容積負荷≦0.43 kg/m3-day,其處理後之出流水可符合92年之放流水標準。 4. 本系統於負荷高時出現許多細菌及鞭毛蟲。在正常操作時之外觀呈現灰褐色,微生物菌相以輪蟲及鐘形蟲為主。 5. 本研究使用之資源化多孔陶瓷擔體,具有粗糙表面及開孔之特性,以實驗模型連續操作三個月後將擔體作顯微觀察,發現擔體表面及內部剖面皆有微生物附著生長,無發現一般不規則形狀擔體之阻塞問題。 6. 以台中工業區污水處理廠廢水進廠限值條件下,反應槽擔體填充率30 % 系統,控制 HRT 12 hrs,處理後之出流水大抵可符合放流水標準,較現行台中工業區聯合污水處理廠生物池之 HRT 15 hrs為短,顯示資源化多孔陶瓷擔體處理工業區綜合廢水確有其應用之潛力。 This study investigated the feasibility of using waste-derived porous ceramic as microbial carrier to treat industrial wastewater. The waste-derived carrier (WDC) was prepared from sintering mixed inorganic wastes including waste ceramics, fiberglass, calcium fluoride sludge, waste molecular sieve, and processing aids. A lab-scale research was conducted using industrial wastewater from Taizhong Industrial Park with the packing ratio of WDC to the volume of the bioreactor varied from 10 to 30%. The removal of COD, BOD, and SS was monitored and related to the effects of packing ratio, influent loading, inflow concentrations, and hydraulic detention time (HRT). The development of the active microorganisms to the WDC was also observed. It was found that at a 30% packing ratio and a 12-hour HRT, approximately 91% of the influent COD was removed, this rendering the effluent in compliance with the effluent standards, as compared to the traditional activated sludge process with 15 hour HRT. Moreover, no clogging of the carrier was observed during the tests. The results indicate that this biofiltration system using waste derived carrier has great potential as a considerably downsized system with better performance.
    Appears in Collections:[環境工程研究所碩士在職專班] 博碩士論文

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