本研究與高雄臨海工業區之大型油漆廠進行合作，針對該廠所設生物滴濾塔處理揮發性有機廢氣設施，進行效能提升與改善建議。
製程中揮發性有機廢氣濃度變化相當劇烈，經由檢測VOCs濃度由10-1500 ppm，廢氣成分主要為：甲苯、二甲苯、異丁醇以及單甲基丙醚等污染物。且由於原生物滴濾塔濾材填充之高度不足（PVC濾球填充1.5m），以致接觸面積不足，因此本研究以實場模型生物滴濾塔內填充蛇木屑作為原生物滴濾塔之後段處理進行試驗，希望藉此改善原生物滴濾塔處理之效率。
模型生物滴濾塔設備，主要可分為三個部分：1.生物滴濾塔主體，2.廢氣進氣系統，3.循環水系統。生物滴濾塔內尺寸為（0.3 m×0.3 m），總高度1.6 m，以一號蛇木屑為填充濾料（比表面積為150 m2/m3），填充高度1 m；進氣設備則自原生物滴濾塔塔頂以PVC導管連接一5 m3/min的鼓風機抽氣，導入模型生物滴濾塔中；循環水系統方面，則以30 L之透明壓克力為循環水槽，並以一無軸封抽水馬達（4 L/min），抽取循環水至塔頂噴灑。
實驗結果顯示，原生物滴濾塔在風量固定為270 CMM、循環水量為400 L/min及每日添加污泥寶1 L之操作參數下，去除率平均只維持在28％效果不如預期。
模型生物滴濾塔方面，實驗由20s的氣體空塔停留時間（風量＝0.27 CMM、空塔流速＝0.05 m/s）下開始進行，每10 min進行一次進出口的量測，持續進行一小時的試驗，每個空塔停留時間間隔30 min進行調整，持續至空塔停留時間到達9.82s （風量＝0.68 CMM、空塔流速＝0.1 m/s）。結果顯示空塔停留時間高低（亦即空塔流速）對生物滴濾塔的處理效果，有相當大程度的影響。而去除率亦隨有機負增加而減少，有機負荷越高（由5.18 g/m3.hr至10.37 g/m3.hr）去除率越低（由80％至75.56％），在有機負荷突增至186.65 g/m3.hr時，去除率便降至24％。此外生物滴濾塔受溫度影響亦大，實驗中溫度下降10℃其去除率亦下降至43％。
經第二段蛇木屑滴濾塔的串聯，各物種之去除率可再有相當成效之成果，與穩定階段時除二甲苯（64.7％）、甲苯（79.2％）、乙二醇單乙醚鲭酸（50.3％）以及D.A.A.（38.2％），其餘各物種皆達80％以上之去除。
該實廠設計處理風量為270 m3/min，設備成本為NT$3,644,000，每日操作費用約NT$1,069，年(300天，每天操作10小時)總操作費用約為NT$720,810；單位氣體處理費(含設備折舊)則為NT$ 6.2/1,000 m3。故以填充蛇木屑為二段處理之生物滴濾塔對於油漆製程所產生之廢氣而言，為經濟可行之操作技術。

In response to growing concern over volatile organic compounds (VOCs) biofiltration is becoming an established economical air pollution control technology for removing VOCs from waste air stream. This study armed to develop a trickle-bed biofilter to treat emitted VOCs stream from a piant blending process. Analytical results demonstrated that the VOCs conceratration range is 10 to 1500 ppm calibrated as methane and the major components of the emitted gases are toluene, xyluene, isobutanol, methyl-isopropyl ether, etc.
Originally, a full-scale biotrickling filter of 6m × 6m in inner cross-sectional area packed with wood chips(10 cm × 10 cm × 2 cm) to a height of 4 m was used to treat the vent gas with a flow rate of 270 m3/min. A recycle water rate of 400 L/min and a nutrient liquid (acid digested liquor of bird feather) addition rate of 1L/day. Under these operation parameters, the average VOC removal efficiency of the original trickling filter of 28% which was not as good as expected. To improve the efficiency, a pilot biofilter constructed from a 0.3-m x 1.6-m (OD x H) plastic column packed with fam chips to a height of 1 m was used for treating a sample stream of the vent gas. Empty bed retention times in the range of 9.82 to 20 s, corresponding inlet flow rates of 0.68 to 0.27 m3/min and the organic loading rates of 5.18 to 10.37 g/m3.hr were used. As the empty bad retention times was getting shorter, the removal efficiency become lower (from 80 to 75.56%). When the organic loading rose to 186.65 g/m3.hr, the removal efficient also got down to 24%. As the gas temperature droped to 10OC,the removal efficient also decreased to 43%.

第一章 前言
1-1 研究緣起
1-2 油漆塗料之特性
1-3 研究背景
1-4 研究目的
1-5 研究架構
第二章 文獻回顧
2-1 揮發性有機廢氣處理技術
2-2 揮發性有機廢氣生物處理技術
2-2-1 生物濾床法
2-2-2 生物洗滌法
2-2-3 生物滴濾塔法
2-2-3-1 氣液接觸方式
2-2-3-2 氣體停留時間
2-2-3-3 循環水pH值
2-2-3-4 濾料選擇
2-2-3-5 溫度
2-2-3-6循環水負荷
2-2-3-7 營養鹽
2-3 在油漆製程中之各揮發性有機物處理成效及回顧
2-3-1 以生物滴濾塔處理排氣中含二甲苯成分
2-3-2以生物滴濾塔處理排氣中含甲苯成分
2-3-3以生物滴濾塔處理排氣中含丁酮成分
2-3-4 以生物滴濾塔處理噴漆塗裝工廠排氣實例
2-3-4-1 以生物滴濾塔處理噴漆廠之揮發性有機物之操作應用
2-3-4-2 以生物滴濾塔處理噴漆以及塗料設備之污染廢氣排放
第三章 實驗設備、材料與方法
3-1 實驗設備
3-1-1 原生物滴濾塔之實驗設備
3-1-2 模型生物滴濾塔實驗設備
3-1-2-1 模型生物滴濾塔主體
3-1-2-2 進氣設備
3-1-2-3 循環水系統
3-1-2-4 濾材
3-2 實驗方法
3-2-1 微生物磨馴養與系統啟動
3-2-2 操作方法
3-2-3 實驗分析方法
3-2-4 現場實驗監測
3-3分析儀器
第四章 結果與討論
4-1 原生物滴濾塔操作結果
4-2 模型生物滴濾塔試驗
4-2-1 不同氣體空塔停留時間下生物滴濾塔之去除率
4-2-2 有機負荷與去除率之關係
4-2-3有機負荷突增下對於生物滴濾塔去除率之影響
4-2-4 溫度對生物滴濾塔之影響
4-2-5 生物滴濾塔分解能力探討
4-2-6 生物滴濾塔循環水質分析及影響
4-2-7 固定進流風速下長時間處理效果
4-3 原生物滴濾塔及模型生物滴濾塔各成分分析
4-3-1原生物滴濾塔各物種成分分析
4-3-2模型生物滴濾塔各物種成分分析
4-4 經濟評估
4-4-1實場經濟成本估算
4-4-2實場改善初設費用
4-4-3操作費用估算
4-4-4 總費用
第五章 結論與建議
5-1 結論
5-1-1 原生物滴濾塔
5-1-2 模型生物滴濾塔
5-2 建議
5-2-1 微生物之馴養
5-2-2 原生物滴濾塔
5-2-3 pH值和溫度控制
5-2-4 滴濾塔營養鹽添加參考文獻
附錄

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