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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 駱尚廉(Shang-Lien Lo) | |
| dc.contributor.author | Chia-Jung Chang | en |
| dc.contributor.author | 張嘉容 | zh_TW |
| dc.date.accessioned | 2021-06-15T04:53:24Z | - |
| dc.date.available | 2011-08-03 | |
| dc.date.copyright | 2010-08-03 | |
| dc.date.issued | 2010 | |
| dc.date.submitted | 2010-07-29 | |
| dc.identifier.citation | Carrott, P. J. M., Nabais, J. M. V., Ribeiro Carrott, M. M. L. and Menéndez, J. A. (2001). Thermal treatments of activated carbon fibres using a microwave furnace. Microporous and Mesoporous Materials 47(2-3): 243-252.
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/46083 | - |
| dc.description.abstract | 台灣地區隨著污水下水道之加速興建，污水處理廠陸續開始管運，都市污水廠之廢棄污泥處理與處置問題備受關注。在污泥處理程序中，好氧消化程序是常被採用之技術，然而好氧消化需達7-15日以上才足以將污泥之揮發性固體量降至某程度以下，達到污泥減量之目的，此乃因廢棄污泥含多量大分子有機固體物，在消化過程中難以快速分解，產生對消化速率之限制。因此，本研究利用微波加熱、酸鹼氧化及微波與鹼處理等技術，進行廢棄污泥在消化程序前之預處理，探討污泥中有機物之水解效率，進而檢視後續消化作用之效率是否可因而提昇。
本研究以批次實驗進行預處理之污泥水解分析，比較各處理方法之污泥水解效率並找出最佳操作條件，續以好氧消化程序檢視污泥減量效果。在預處理中，分別就污泥濃度、溫度、酸鹼條件及能量消耗等因子進行探討，微波法之最佳預處理條件為600W功率下反應2分鐘，可產生COD溶出率8%；酸鹼處理法之最佳條件為於每升污泥中添加1.5 g NaOH劑量使其於強鹼環境下作用，可促使18%之COD溶出；利用微波與鹼處理之聯合技術將大幅將提高污泥之水解效率，鹼處理後微波加熱處理(鹼-微波組)之COD溶出率為39.3%，若以微波加熱後再行鹼處理(微波-鹼組)，COD溶出率則可提高為45.5%。本研究進一步藉由好氧消化批次實驗證實經由聯合技術之微波-鹼方式，可有效提升常溫好氧消化效率，並在6日內即可達廢棄污泥減量之目的。 | zh_TW |
| dc.description.abstract | Proper management of wastewater sludge has become increasingly important in recent decades due to environmental and economical concerns. Aerobic digestion is commonly used for sludge treatment; however, it takes a long time to achieve a desirable level of volatile solids destruction. Degradation of large molecular-weight organic compounds is rate-limiting in the sludge. This study promoted hydrolysis of organic compounds to improve subsequent digestion by pretreatments of microwave, acid and alkaline, and combined microwave with alkali.
In this study, batch-scale experiments were conducted to compare the effectiveness of various pretreatment methods on subsequent aerobic digestion. In pretreatment processes, effects of waste activated sludge concentration, temperature, pH and pretreatment methods (alkaline and microwave heating) on solubilization of COD were first investigated. Compared to conventional heating, microwave pretreatment required a shorter time in heating; and it achieved COD solubilization of 8% within 2 min at 600 W. In the alkaline pretreatment, the dose of 1.5 g NaOH/L was found optimal and the COD solubilization could reach approximately 18%. Two sequences of combined alkaline and microwave pretreatments were also evaluated, and the COD solubilization reached 39.3% (Alkali-Microwave) and 45.5% (Microwave-Alkali), respectively. As demonstrated in the batch aerobic digestion tests, the combined microwave-alkali pretreatment was proven to enhance the digestibility of volatile solids in the waste activated sludge samples. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-15T04:53:24Z (GMT). No. of bitstreams: 1 ntu-99-R97541116-1.pdf: 1653989 bytes, checksum: cc7876acdfe193ef15b45842fd232021 (MD5) Previous issue date: 2010 | en |
| dc.description.tableofcontents | 摘要 I
Abstract II 目錄 III 圖目錄 VI 表目錄 VIII 第一章 前言 1 1.1 研究動機 1 1.2 研究目的 2 1.3 研究架構 2 第二章 文獻回顧 4 2.1. 都市廢棄污泥產量及性質 4 2.2 污泥處理技術 5 2.2 預處理技術 5 2.3 微波水解處理技術 6 2.3.1 微波理論 6 2.3.2 微波於污泥水解之原理 9 2.3.3 微波於污泥水解之相關研究 9 2.3.4 微波技術於其他污泥處理之研究 10 2.4 酸鹼水解處理技術 11 2.4.1 酸鹼於污泥水解之原理 11 2.4.2 酸鹼於污泥水解之相關研究 12 2.5 微波與鹼聯合處理技術 13 第三章 材料與方法 14 3.1 實驗方法 14 3.1.1 污泥來源 14 3.2.2 預處理技術建立 14 3.2.1.1熱處理技術 15 3.2.1.2 酸鹼處理技術 15 3.2.1.3 微波與鹼合併處理技術 15 3.2.3 批次好氧消化設備設計 16 3.3 實驗分析項目與設備 18 3.3.1 實驗分析項目 18 3.3.2 實驗儀器及藥品 20 第四章 結果與討論 22 4.1污泥成分特性分析 22 4.2 污泥之微波熱水解技術 22 4.2.1 傳統加熱與微波加熱比較 23 4.2.1.1 輸出能量對熱處理之影響 23 4.2.1.2 溫度對於熱處理之影響 24 4.2.2 微波水解處理技術之各參數檢視 26 4.2.2.1 COD溶出率 27 4.2.2.2 粒徑分析 28 4.2.2.3 污泥上澄液體積變化分析 29 4.2.2.4 毛細虹吸時間 30 4.2.3 污泥水解影響變因探討 31 4.2.3.1 污泥濃度變因 31 4.2.3.2 微波吸收劑之添加 32 4.2.4 小結 33 4.3 污泥之酸鹼處理技術 33 4.3.1 檢視各參數 34 4.3.1.1 SCOD濃度分析 34 4.3.1.2 VSS/TSS下降率 35 4.3.1.3 粒徑分析 36 4.3.1.4 CST值分析 37 4.3.3 最佳加鹼量之探討 38 4.3.4 小結 39 4.4 微波與鹼組合水解污泥 39 4.4.1 COD溶出率 39 4.4.2 SEM影像檢視 41 4.4.3 小結 42 4.5常溫好氧下批次消化反應 43 4.5.1 消化程序之SCOD消耗變化 43 4.5.2 消化程序之固體減量情形 44 4.5.3 小結 47 第五章 結論與建議 48 5.1 結論 48 5.2 建議 48 第六章 參考文獻 50 附錄 55 | |
| dc.language.iso | zh-TW | |
| dc.subject | 微波與鹼處理程序 | zh_TW |
| dc.subject | 熱化學預處理法 | zh_TW |
| dc.subject | 污泥消化及廢棄污泥 | zh_TW |
| dc.subject | waste activated sludge | en |
| dc.subject | Microwave-alkali process | en |
| dc.subject | thermochemical pretreatment | en |
| dc.subject | sludge digestion | en |
| dc.title | 微波/鹼熱化學技術應用於污泥消化預處理之研究 | zh_TW |
| dc.title | Enhancing Digestibility of Waste Activated Sludge by Microwave-Alkali Thermochemical Pretreatment | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 98-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 曾四恭,胡景堯 | |
| dc.subject.keyword | 微波與鹼處理程序,熱化學預處理法,污泥消化及廢棄污泥, | zh_TW |
| dc.subject.keyword | Microwave-alkali process,thermochemical pretreatment,sludge digestion,waste activated sludge, | en |
| dc.relation.page | 61 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2010-07-30 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 環境工程學研究所 | zh_TW |
| 顯示於系所單位： | 環境工程學研究所 | |
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