焚化下水道污泥可達有效的減容、減量目的。焚化排氣含粒狀物、氨、硫化氫、揮發性有機物(VOCS)及相關異味，如未妥適處理，將造成附近居民困擾，另可能導致異味陳請案件日漸增加。
本研究以化學洗滌法去除焚燒下水道污泥產生之異味，使用稀硫酸或氫氧化鈉先行去除氨或硫化物，以次氯酸氧化VOCS，以鹼性過氧化氫去除次氯酸洗滌排氣中之氯氣。批次洗滌試驗之變數為洗滌液中有效氯濃度及pH值，使用氣相層析儀-火焰離子化偵側器(GC-FID)分析廢氣處理前後之非甲烷碳氫化合物(NMHC)濃度，並檢測洗滌前後洗滌液之pH及有效氯濃度變化。
洗滌試驗條件為進氣流量1.0 m3/min、洗滌液容積0.60 L。台北污泥(TP)焚化排氣洗滌試驗結果顯示，在有效氯濃度570 mg/L、pH 6.0-7.0，可有效去除排氣中異味，在進氣NMHC 60-110 mg/m3 as CH4時，其去除率60-85 %，異味由濃烈焦味轉為過氧化氫味。台南污泥(TN1)焚化排氣洗滌顯示，在有效氯濃度50 mg/L、未調整洗滌液pH值，可有效去除排氣中異味，進氣NMHC 200-400 mg/m3 as CH4時，其去除率30-40 %，異味由濃烈焦味轉為過氧化氫味。台南混合污泥(TN2)焚化排氣洗滌顯示，在有效氯濃度100 mg/L、pH 6.5及未調整時，皆可有效去除排氣異味，進氣NMHC 120-180 mg/m3 as CH4時，其去除率75-85 %，異味由濃烈焦味轉為過氧化氫味；當氧化吸收液pH 6.5，廢氣處理前異味濃度大於309,000，處理後小於55，符合環保署公告之排放標準。
以此法處理排氣，需用硫酸、次氯酸鈉、氫氧化鈉、過氧化氫等化學品。估算處理1,000 m3廢氣，加藥費用為台北污泥56.6 NTD，台南污泥(I) 2.22 NTD，台南混合污泥(II)耗費5.67 NTD。

Incineration of wasted sewage sludge can achieve goals of both volume and amount reductions. However, particulates, ammonia, hydrogen sulfide, volatile organic compounds (VOCS) and related odors emit with the vented gas and can be harmful to the nearby residents if not properly treated.
Two sludge samples, one obtained from Taipei (TP) and the other from Tainan (TN1), were used for preparation of test incinerated gases for odor removal. Before the tests, one of the samples of TP, TN1, and TN1 mixed with a clay sample (named as TN2) was incinerated in an tubular oven heated to around 500-550oC and the vented gas drawn and cooled to room temperatures before stored in a gas bag. This study used sulfuric acid or sodium hydroxide solution to remove ammonia or hydrogen sulfide in the test gas at first. The pre-scrubbed gas was then introduced to a sodium hypochlorite (NaOCl) solution to scrub and oxidize the VOCs and the associated odors from the test gas. An alkaline hydrogen peroxide (H2O2) solution was followed to remove Cl2 emitted from the oxidative solution. Laboratory scrubbing bottles with a liquid volume of 600 mL were used with the cooled gas injected into the system at a rate of 1 L/min at 25°C. A gas chromatograph with a flame ionization detector (GC-FID) was used for detecting non-methane hydrocarbon (NMHC) contents in the gases. Effective chlorine concentration and pH of the oxidative solution were varied for obtaining suitable oxidation conditions.
Results indicate that by purging the pre-scrubbed TP-burning gas through a solution with an available chlorine [Cl2] of 570 mg/L at an adjusted pH of 6.0-7.0, and then through a solution with pH > 12.0 and 0.30% H2O2 for absorption and reduction of Cl2 in the exhaust gas from the oxidation liquid, around 60-85% of the VOCs in the range of 60-110 mg/m3 as CH4 was removed. The burnt-feeling odor turned into H2O2-like one in the scrubbed gas. For TN1-burning gas, an operation with the oxidative solution at an [Cl2] of 50 mg/L and no pH adjustment and followed by the reduction solution was able to remove 30-40% of the influent gas with NMHC of 200-400 mg/m3 as CH4. The scrubbed gas had a H2O2-like smell too. For TN2-burning gas, an operation was conducted with the oxidative solution at an [Cl2] of 100 mg/L and no pH adjustment or adjusted to 6.5 and followed by the reduction solution. NMHC in the influent gas at 120-180 mg/m3 as CH4 could be reduced to a degree of 75-85%. Take the operation as an example, odor intensities of the influent gas could be reduced from 309,000 (expressed as dilutions to threshold) to <55. The odor intensity of the scrubbed gas meets the regulation of less than 1,000 for exhaust gas from an emission pipe with a height of lower than 18 m above ground, as set by the EPA of Taiwan. Estimations indicate that the chemical cost is around 57, 22, and 5.7 for scrubbing 1,000 Nm3 of the exhaust gas from burning TP, TN1, and TN2, respectively.

論文審定書………………………………………………………………...…… i
謝誌………………………………………………………………………...…… ii
中文摘要………………………………………………………………………... iv
Abstract………………………………………………………………………....v
目錄………………………………………………………………………...…… vii
圖目錄……………………………………………………………………...…… ix
表目錄……………………………………………………………………...…… x
第一章前言
1.1研究動機……………………………………………………………… 1
1.2研究目的與內容……………………………………………………… 2
第二章文獻回顧
2.1異味定義……………………………………………………………… 3
2.2異味來源……………………………………………………………… 7
2.3異味表示方法………………………………………………………… 8
2.4異味去除技術………………………………………………………… 13
2.5化學洗滌處理技術…………………………………………………… 14
2.6化學洗滌相關文獻…………………………………………………… 24
2.7污泥來源及種類……………………………………………………… 26
2.8污泥處理方…………………………………………………………… 29
第三章實驗設備與方法
3.1實驗架構及流程……………………………………………………… 35
3.2實驗設備……………………………………………………………… 36
3.3實驗方法……………………………………………………………… 37
第四章結果與討論
4.1污泥特性分析………………………………………………………… 42
4.2以化學洗滌法去除污泥廢氣異味之試驗…………………………… 50
4.3 TN2排氣異味去除……………………………………………………68
4.4操作費用估算………………………………………………………… 69
第五章結果與建議
5.1結論…………………………………………………………………… 77
5.2建議…………………………………………………………………… 78
參考文獻…………………………………………………………………..79
附錄………………………………………………………………………..84

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