博碩士論文 943306005 詳細資訊




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姓名 杜峯祺(Feng-Chyi Do)  查詢紙本館藏   畢業系所 環境工程研究所在職專班
論文名稱 混合式厭氧反應槽之效能探討
(The Efficiency Evaluation of an Anaerobic Hybrid Reactor)
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摘要(中) 本研究目的係探討提升混合式厭氧反應槽處理效能之策略。案例反應槽更換濾材後未達設計處理效能,期望藉由研究了解影響其處理效能的主要因子,並探討提升其處理效能之可行改善策略。
研究內容以收集案例厭氧反應槽更換濾材後之操作及水質數據,從反應槽之廢水水質、水力負荷、有機負荷、污泥性質、BMP測試等層面探討影響其處理效能的主要因子,並由COD去除量與容積負荷率之相關性,進行實場初步驗證評析。
研究結果顯示,影響案例厭氧反應槽處理效能的主要因子,為其污泥床區之污泥量不足之影響所致;另一方面COD去除量與容積負荷率呈線性相關,以實場進行初步驗證,容積負荷率由4.5提升至5.0 kg/m3‧d,COD去除量約可以增加860 kg/d。
本論文提出之改善策略建議為:(1)植種顆粒污泥重新啟動反應槽,並控制適當之操作參數,以加速根本解決污泥床區之污泥量不足問題;(2)在出流水增設固液分離設施,將過量洗出之污泥回流至反應槽,以穩定系統之操作。
本論文之主要貢獻在於針對廢水處理效能偏低時,藉由實際操作資料與相關層面比較,找出影響效能之主要因子,並提出改善策略建議,不僅對案例廠有所助益外,亦提供研究廢水處理效能之參考。
摘要(英) The strategy to improve the efficiency of a hybrid anaerobic reactor was studied in this paper. The reactor has never reached its design efficiency since renewing media, and it is intended through this study to investigate the key affecting factors and review the practical improvement strategy.
In this study the operating and analysis data of the reactor since renewing the media was collected, and the key factors affecting the reactor efficiency were reviewed on each aspect of the wastewater quality, hydraulic load, organic load, sludge properties, and BMP test. On the other hand, the correlation between COD removal quantity and volumetric loading rate was reviewed, and an initial verification on the reactor was performed.
The key factors affecting the efficiency were identified due to insufficient sludge quantity in the suspended growth zone of the hybrid reactor; a linear correlation between COD removal quantity and volumetric loading rate was developed and an extra ca. 860 kg/d COD was removed during an initial trial increasing volumetric loading rate from 4.5 to 5.0 kg/m3‧d.
The improvement strategy recommended is: (1) reseed granular sludge and restart up the reactor, and properly control the parameters to accelerate the improvement of the sludge quantity in the suspended growth zone and (2) install a solid and liquid separation facility to recover the excessive washout sludge to the reactor to stable its operation.
The contribution of this paper is identifying the key factors to the low efficiency of a reactor by comparing the operation data with each aspect of the reactor, and the following recommendations of the improvement strategy. This is not only helpful for this hybrid anaerobic reactor but also can be a useful reference to the researches on wastewater treatment efficiency.
關鍵字(中) ★ 顆粒污泥
★ 植種
★ 混合式厭氧反應槽
★ 上流速度
★ 容積負荷率
關鍵字(英) ★ hybrid anaerobic reactor
★ granular sludge
★ volumetric loading rate
★ reseed
論文目次 誌謝………………………………………………………………………………….. i
英文摘要…………………………………………………………………………….. ii
中文摘要………………………………………………………………………………. iii
目錄……………………………………………………………………………………. v
圖目錄………………………………………………………………………………… vii
表目錄………………………………………………………………………………… ix
第一章 前言
1-1 研究緣起…………………………………………………………………… 1
1-2 研究目的…………………………………………………………………… 2
第二章 文獻回顧
2-1 PTA生產製程及廢水處理………………………………………………… 3
2-2 案例廠廢水處理簡介……………………………………………………… 5
2-3 厭氧生物處理原理 ……………………………………………………… 8
2-4 厭氧反應槽型式…………………………………………………………… 14
2-5 PTA製程廢水之厭氧生物降解過程……………………………………… 17
2-6 影響厭氧生物反應之因子………………………………………………… 21
第三章 研究方法
3-1 研究流程…………………………………………………………………… 27
3-2 研究方法…………………………………………………………………… 28
3-2-1處理效能影響因子評析………………………………………… 28
3-2-2 提升反應槽處理效能之可行方案評析…………………………… 28
3-3 分析測試方法……………………………………………………………… 29
3-3-1廢水水質…………………………………………………………… 29
3-3-2污泥顯微鏡菌相觀察……………………………………………… 29
3-3-3 BMP測試…………………………………………………………… 29
第四章 結果與討論
4-1 處理效能影響因子評析………………………………………………… 34
4-1-1廢水水質…………………………………………………………… 34
4-1-2 水力負荷……………………………………………………………… 37
4-1-3 有機負荷……………………………………………………………… 39
4-1-4 污泥性質…………………………………………………………… 42
4-1-5 BMP測試…………………………………………………………… 43
4-2 提升有機負荷之初步驗證………………………………………………… 45
4-3 效能提升策略之研擬……………………………………………………… 53
4-3-1軟體操作監控提升………………………………………………… 53
4-3-2硬體工程改善……………………………………………………… 56
第五章 結論與建議
5-1 結論………………………………………………………………………… 58
5-2 建議………………………………………………………………………… 59
參考文獻……………………………………………………………………………… 61
附錄A 提升反應槽COD去除量之控制策略…………………………………… A-1
附錄B 揮發酸及部分鹼度之測定方法…………………………………………… B-1
附錄C 化學需氧量之測定方法…………………………………………………… C-1
附錄D 懸浮固體及揮發性懸浮固體之測定方法………………………………… D-1
附錄E 低濃度總醋酸含量測定方法……………………………………………… E-1
附錄F pH測定方法……………………………………………………………… F-1
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指導教授 曾迪華(Dyi-Hwa Tseng) 審核日期 2007-7-18
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