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論文名稱 Title |
薄膜生物反應器在工業廢水處理系統之應用 Application of membrane bioreactor in the industrial wastewater treatment system |
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系所名稱 Department |
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畢業學年期 Year, semester |
語文別 Language |
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學位類別 Degree |
頁數 Number of pages |
173 |
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研究生 Author |
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指導教授 Advisor |
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召集委員 Convenor |
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口試委員 Advisory Committee |
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口試日期 Date of Exam |
2010-06-09 |
繳交日期 Date of Submission |
2010-08-23 |
關鍵字 Keywords |
製革廢水、工業區廢水、薄膜生物反應槽(MBR)、上流式厭氧污泥床(UASB) upflow anaerobic sludge blanket (UASB) reactor, tannery wastewater, membrane bioreactor (MBR), wastewaters from industrial parks |
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統計 Statistics |
本論文已被瀏覽 5750 次,被下載 4317 次 The thesis/dissertation has been browsed 5750 times, has been downloaded 4317 times. |
中文摘要 |
隨著工業快速發展,工業用水量相對提升,如何將廢水回收再利用,成為現今產業界重要的議題之ㄧ。現今MBR(membrane bioreactor)技術應用範圍已相當廣泛,包含生活污水、染整廢水、製藥廢水等已有相當好的處理效果。但實場廢水水質水量變異大,此變異對MBR處理後廢水水質之影響甚鉅,故須再深入探討MBR處理實場廢水之適用性。 本研究選擇製革業(A廠)及工業區廢水之處理廠(B廠)進行測試。A廠處理設備為MBR及上流式厭氧污泥床(UASB),B場則為MBR,本研究對此二廠廢水之MBR處理效率進行分析,評估其性能,以利於推廣。 試驗結果顯示,以A廠活性污泥系統末段混合液作為模場MBR進流水,在水力停留時間12.2-20.4 hr,膜濾通量4.92-8.17 L/m2.hr,活性污泥濃度5,060-37,800 mg/L之操作條件下,出流水之化學需氧量(COD)均小於100 mg/L,符合放流水標準(<160 mg/L);出流水之懸浮固體物(SS)小於10 mg/L,亦符合法規(<30 mg/L)。另外,現場放流水之TDS約9,090-9,750 mg/L,MBR槽過濾液之TDS為8,700-9,700 mg/L,TDS為廢水中高濃度氯離子及硫酸根造成,致膜濾通量無法提升至一般MBR操作值(20-30 L/m2.hr)。另外,A廠初沉溢流水COD約為2,200 mg/L,流經UASB處理後。放流水之COD為620 mg/L,單一UASB對溢流水COD之去除率約70 %。 B廠進流水COD為 93-144 mg/L,現場放流水COD為 11-65 mg/L,均符合放流水標準100 mg/L。以B廠進流水作為模場MBR進流水,在水力停留時間為2.16-12.2 hr,膜濾通量5.0-28 L/m2.hr,活性污泥濃度1,550 mg/L之操作條件下,模場MBR槽抽出液之COD值約11-81 mg/L;於MBR槽加入粉狀活性碳(PAC) 500 mg/L後,水樣顏色較為澄清,COD值由未添加PAC之77 mg/L降至20-40 mg/L,操作30天後COD值分別為30及48 mg/L。PAC定期添加有利於處理廢水達回收水質標準。 |
Abstract |
Wastewater recycling and reuse is an important issue in the coming years due to the increasing water demand and the decreasing water supply. MBR (membrane bioreactor) technology has become an important pretreatment technology for reclaiming treated effluent from, for example, domestic, dyestuff, and pharmaceutical wastewater plants. However, variations in wastewater flow rate and polluted materials can be a great influence to the performance of MBR. The applications of MBR to the treatment of various industrial wastewaters are worthy of further investigation. The present study investigated performances of MBR for treating wastewaters from a tannery plant and an industrial park. In addition, a pilot-scale UASB (upflow anaerobic sludge blanket) reactor was used for the pretreatment of the tannery plant wastewater for COD (chemical oxygen demand) removal. Results from tannery wastewater treatment indicate that using effluent from the activated sludge ponds of plant A as an influent to the pilot MBR, COD and SS (suspended solids) of the MBR filtrates could always be kept at <100 and <30 mg/L, respectively. Both COD and SS of the filtrates meet effluent regulations of <160 and <30 mg/L, respectively. The operation conditions were HRT (hydraulic retention time) = 12.2-20.4 hr, flux = 4.92-8.17 L/m2.hr, and MLSS (mixed liquor suspended solids) = 5,060-37,800 mg/L. Because the effluent had high TDS (total dissolved solids) contents of 8,700-9,700 mg/L resulted from chloride and sulfate ions, the permissible operational fluxes (4.92-8.17 L/m2.hr) were far below the normal ones (20-30 L/m2.hr). Experiments from the UASB test indicate that on an average 70% of the influent COD (2,200 mg/L) could be removed. Wastewater plant for the industrial park had influent and effluent COD of 93-144 and 11-65 mg/L, respectively. By the MBR with EBRT of 2.16-12.2 hr, flux of 5.0-28 L/m2.hr, and MLSS of 1,550 mg/L, the filtrates had COD of 11-81 mg/L. In addition, COD of the MBR filtrates could be decreased from 77 to 20-40 mg/L after supplementation of PAC (powdered activated carbon) at a concentration of 500 mg/L, and a clearer filtrate was obtained. After 30 days of operation, COD of the filtrates could be maintained at 30-48 mg/L. Regular addition of PAC to the MBR reactor is necessary for keeping the effluent quality to meet the reuse requirements. |
目次 Table of Contents |
致謝 摘要 I Abstract III 目錄 V 圖目錄 VIII 表目錄 IX 第一章、前言 1 1.1 研究動機 1 1.2 研究目的及內容 2 第二章、文獻回顧 3 2.1 MBR背景與說明 3 2.1.1 MBR系統介紹 3 2.1.2 MBR可因應水及廢水處理市場需求 9 2.1.3 尋求優化的MBR系統 9 2.1.4 突破現行MBR工程服務執行模式 10 2.1.5 技術及市場現狀分析 11 2.2 UASB背景與說明 14 2.3 利用MBR處理各式廢水的文獻查考 15 2.3.1 MBR處理生活廢水 24 2.3.2 MBR處理綜合住商大樓污水 25 2.3.3 MBR處理餐廚污水 26 2.3.4 MBR處理製藥廠污水 27 2.3.5 不織布MBR處理技術與實例 28 2.4 用UASB處理各式廢水之文獻回顧 30 2.4.1 煉焦廢水處理技術之應用概況 33 2.4.2 UASB處理食品業污水 35 2.4.3 UASB處理畜牧業(養豬廢水) 37 第三章、實驗設備與方法 39 3.1 實驗步驟 39 3.2 實驗設備 40 3.2.1 MBR薄膜之選用 41 3.2.2 試驗產業別 47 3.2.3 設備組裝及清水測試期程 51 3.2.4 系統之設定參數 53 3.2.5 系統之壓力操作記錄 55 3.3 儀器及藥品 57 3.3.1 實驗設備及儀器 57 3.3.2 實驗藥品 59 3.4 檢測項目及方法 61 第四章、結果與討論 62 4.1 A廠之結果討論 62 4.1.1 A廠COD討論 64 4.1.2 A廠SS/MLSS/TDS討論 64 4.2 B廠之結果討論 67 4.2.1 B廠COD討論 67 4.2.2 B廠SS/MLSS/TDS討論 70 4.2.3 B廠陰離子濃度討論 71 第五章、結論 72 5.1 A廠結論 72 5.2 B廠結論 73 第六章、建議 74 6.1 對A廠(皮革廠)廢水處理之建議 74 6.2 對B廠(综合工業區)廢水處理之建議 74 參考文獻 75 |
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