UASB厭氧法串聯活性污泥處理太陽能晶圓廢水之研究

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题名:	UASB厭氧法串聯活性污泥處理太陽能晶圓廢水之研究
作者:	吳紫賓;Wu,Zih-bin
贡献者:	環境工程研究所在職專班
关键词:	太陽能晶圓廢水;上流式厭氧污泥床;活性污泥;Solar wafer wastewater;Upflow anaerobic sludge bed;Activated sludge
日期:	2013-07-26
上传时间:	2013-08-22 12:17:50 (UTC+8)
出版者:	國立中央大學
摘要:	本研究係利用上流式厭氣污泥床（UASB）串聯活性污泥（AS）生物反應程序模組，實廠試驗處理太陽能晶圓廢水，探討其去除COD之效能。污泥植種馴化試驗，利用畜牧養豬業厭氧污泥及好氧水肥污泥，UASB厭氧反應單元主要操作參數為，進流廢水COD負荷濃度：554 (mg/L)、廢水進流?量：8.4 (ml/min)、廢水回流流量：4.2 (ml/min)、溫度：常溫、水力停留時間：72 (hr)、BA/VA：6.7、pH：7.25、MLSS：52512 (mg/L)；活性污泥單元主要操作參數為：廢水進流?量：8.4 (ml/min)、SVI：78、DO：2 (mg/L)、溫度：常溫、水力停留時間：72 (hr)、MLSS：4940 (mg/L)，F/M：0.05(kg BOD5/kg MLVSS-day)等之操作條件下啟動運轉，以上述設計操作參數試驗證明，污泥植種開始啟動為期共49天可完成馴養。完成馴養程序後，並延續其操作參數設定，以COD級距約500(mg/L)提升進流COD負荷，到COD濃度操作範圍最高負荷3605(mg/L)時，會抑制處理效率，出流水平均COD值為813(mg/L)，COD去除率為77%且有持續降低之趨勢，將進流水COD負荷降為2278(mg/L)後，須經約20天才能恢復較佳處理活性。出流水COD值為97(mg/L)，COD去除率96%，再經過進流COD負荷濃度漸增提升至3038(mg/L)，模組系統出流水平均COD值為61(mg/L)，COD去除率為98%，可維持較佳且穩定之COD去除效率，並且符合環保署公告之COD放流水標準100(mg/L)以下之法規面要求，亦也證明此方法有足夠能力，可以適用於太陽能晶圓製造業廢水處理。 In this study, the use of an upflow anaerobic sludge blanket (UASB) in series with activated sludge (AS) biological response program modules, solar wafers solid waste treatment plant trials to investigate the COD removal effectiveness. Sludge plant species domesticated trial, the use of anaerobic sludge and pig farming livestock aerobic sludge fertilizer, UASB anaerobic reactor unit operating parameters as the main, into the stream concentration of COD load: 554 (mg / L), waste water into the stream current capacity: 8.4 (ml / min), wastewater reflux rate: 4.2 (ml / min), temperature: room temperature, hydraulic retention time: 72 (hr), BA / VA: 6.7, pH: 7.25, MLSS: 52512 (mg / L ) activated sludge unit mainly operating parameters: the amount of waste water into the flow of current: 8.4 (ml / min), SVI: 78, DO: 2 (mg / L), temperature: room temperature, hydraulic retention time: 72 (hr), MLSS : 4940 (mg / L), F / M: 0.05 (kg BOD5/kg MLVSS-day) of the operating conditions such as start running in order to test that the above design operating parameters, started sludge seeding period of 49 days to complete domestication. Complete domestication process, and continues to set its operating parameters to COD level from about 500 (mg / L) to enhance the inflow COD load to maximum load operating range of the COD concentration 3605 (mg / L), it will inhibit the processing efficiency, the the average value of water COD 813 (mg / L), COD removal rate was 77% and the trend has continued to reduce the COD load dropped into water 2278 (mg / L), the subject of about 20 days to recover better deal activity. Effluent COD value of 97 (mg / L), COD removal rate of 96%, and then after increasing influent concentration of COD load increased to 3038 (mg / L), the average effluent COD modular system is 61 (mg / L ), COD removal efficiency of 98% can be maintained better and stable COD removal efficiency and meet EPA announcement COD effluent standard 100 (mg / L) below the surface regulatory requirements, this method has also proved that there is sufficient capacity to can be applied to the solar wafer manufacturing waste water treatment.
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