表面塗裝使用的塗料經過塗覆以及烘烤後所排放之廢氣，含有揮發性有機物(VOCs)和異味。一實廠排氣經實測顯示，若干製程排氣異味已經超出空氣污染物排放標準，也因此開始進行改善的計畫，讓員工及附近居民都能有好的空氣品質以及健康。
本研究以「臭氧」、「化學洗滌」和「化學洗滌串聯活性碳」處理表面塗裝排氣。臭氧處理含異味氣體，利用臭氧與異味物質之未配對子反應，將臭味物質分解，反應後的氧化產物及剩餘臭氧再用活性碳吸附去除而減輕異味。化學洗滌之次氯酸鈉洗滌液可將VOC氧化及去除臭味，而過氧化氫洗滌液主要是還原次氯酸鈉所曝出的氯氣去除；次氯酸鈉串聯活性碳則是能還原去除氯氣及VOCs。
結果顯示，UV/臭氧反應的THC去除效率低，且THC濃度不減反增；化學洗滌(有效氯170、570 mg/L)洗除塗料烘烤氣體之去除率為30%，排氣仍有淡塗料烘烤味；化學洗滌(有效氯570 mg/L)串聯活性碳吸附，可有效減除廢氣中VOCs及異味，活性碳吸附設備THC去除率約80-90%，且幾乎已無異味。

Volatile organic compounds (VOCs) and other odorous compounds emit during surface coating using paints and during baking operations of the coated metal surfaces. If not properly treated, in addition to arising odor complaints, the compounds in the emitted gases would be harmful to the employees of the plants and nearby residents.
In this study, techniques of ozonation, ultraviolet-irradiative ozonation (UV/O3), oxidative-reductive scrubbing, and oxidative scrubbing in-series with activated carbon reductive adsorption were tested to eliminate VOCs and odors in gas streams vented from surface-surface operations of a plant located in southern Taiwan. The oxidative scrubbing used an aqueous solution of neutralized sodium hypochlorite (hypochloric acid) as an oxidant to oxidize the absorbed VOCs and odorants. An alkalinized hydrogen peroxide solution was used for the absorption and reduction of the emitted chlorine from the oxidative scrubber to odorous sodium chloride. Granular activated carbon (GAC) was also tested to adsorb and reduce the emit chlorine to HCl and to adsorb the residual the VOCs and odorants emitted from the oxidative scrubbing operations.
Results indicate that either O3 or UV/O3 could not eliminate the emitted compounds. The oxidative-reductive scrubbing with either 170 or 570 mg/L residual chlorine removed only of 30% of the influent VOCs and the exhaust gas remained slight baked paint odor. Chemical scrubbing with 570 mg/L residual chlorine followed by GAC adsorption effectively removed 80-90% of the odorous compounds in the surface-coating effluent gas.

謝誌 i
摘要 ii
英文摘要 iii
表目錄 viii
圖目錄 x
第一章 前言
1.1研究背景及動機 1
1.2研究目的與內容 2
第二章 文獻回顧
2.1揮發性有機物之定義、來源及危害 3
2.2 VOC之化學洗滌處理 5
2.2.1反應原理 5
2.2.2 亨利常數與VOC溶解度之關係 7
2.2.3 化學洗滌設備 9
2.2.4 化學洗滌適用範圍 12
2.2.5 化學洗滌法相關文獻 20
2.3 臭氧接觸 25
2.3.1 臭氧接觸系統、適用範圍 25
2.3.2 臭氧與有機物反應機制 26
2.3.3 臭氧/紫外光與有機物反應機制 27
2.3.4 UV/O3除去液相中臭味或污染物相關文獻 28
2.4 異味定義 29
2.4.1 異味污染物的量測方法 31
2.4.2 異味污染物官能測定法 32
2.4.3 異味污染物儀器測定法 33
2.4.4 檢出器 35
2.4.5 異味之判定 37
第三章 研究方法與設備
3.1 研究架構 40
3.2 VOCs背景調查 41
3.3 水性塗料之氣樣收集 41
3.4臭氧接觸串連活性碳吸附試驗 42
3.4.1 實驗藥品 42
3.4.2 實驗設備 43
3.4.3 分析方法及設備 43
3.4.4 實驗流程 44
3.5化學洗滌法試驗 45
3.5.1 實驗藥品及氣體 45
3.5.2 實驗設備 46
3.5.3 分析設備 46
3.5.4 分析方法 47
3.5.5 實驗流程 47
第四章 結果與討論
4.1臭氧接觸 49
4.1. 1臭氧機臭氧產生能力建立 49
4.1. 2 反應器 50
4.1. 3 臭氧化試驗 53
4.1. 4 光解試驗 55
4.2 化學洗滌法試驗 58
4.2.1 實驗室二段式化學洗滌吸收瓶實驗 58
4.2.2 排氣處理費用 60
4.3 模場試驗設備建立 61
4.3.1 模廠二段式化學洗滌實驗 62
第五章 結論及建議
5.1 臭氧/紫外光試驗結論 72
5.2 化學洗滌法試驗結論 72
5.3 建議 74
參考文獻 75

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