氧化鐵污泥熱裂解處理機制研究;A Processing Mechanism Research: Pyrolysis of iron oxide sludge

[[abstract]]隨著工業的進步，環保議題日趨重要。工業加工處理製程留下許多廢棄液體，經脫水處理後的汙泥，現階段依然採用掩埋方式處理。因應永續經營、環保意識抬頭，我們將設計一種能夠將製程中所產生的汙泥減量且再利用的方法，並評估商業化價值。本研究進入嘉太工業區盤元線材製造廠，蒐集產線中可能排放之廢棄污泥樣品，以廢棄氧化鐵污泥為主，於無氧環境中作熱裂解法處理，裂解爐由常溫加熱到150℃並持溫一個小時，每次間隔100℃蒐集冷凝液體，逐步加熱至650℃。其後將磷酸鋅污泥和污水處理廠堆置污泥餅用一樣的實驗計畫進行熱裂解法處理，並比較三種資材裂解後殘留固體性質、冷凝液熱值等等，藉此探討有機污泥和重金屬汙泥熱裂解的反應現象。我們也將線材廠球化酸洗製程縮小至實驗室，依現有裂解爐進行球化結構、酸洗除鏽及表面處理，進而推估原料於製程中實際耗損率，亦藉由金相圖判斷球化完成度。最後應用於廠房設備，採用市售大型乾燥裂解爐，計算使用此設備協助公司節省之清運成本，並分析裂解後汙泥再利用價值，以達永續經營理念、台灣綠色工廠指標之一。 With the advancement of industry, environmental issues are becoming increasingly important. Industrial processing and processing process left a lot of waste liquid, dehydrated sludge, and at this stage is still used to deal with buried. In response to sustainable development and environmental awareness, we will devise a method of reducing and reusing the sludge produced in the process and assessing the commercial value.This study entered the steel wire rode factory in Jiatai Industrial Park, collecting production lines may be the discharge of waste sludge samples. Mainly to waste iron oxide sludge, it was treated by doing pyrolysis in an oxygen-free environment. The pyrolysis furnace was heated from room temperature to 150 ° C and held for one hour at a time interval of 100 ° C to collect condensate and gradually heated to 650 ° C. And then do the zinc phosphate sludge and sewage treatment plant piling sludge cake with the same experimental plan for thermal decomposition, and compare the three materials after the residue of solid properties, the condensate heat value, etc., to explore the organic pollution of mild and heavy metal sludge Pyrolysis reaction.We also shrink down the spheroidized pickling process from the steel wire rod factory to the laboratory, We will also wire rod acidification process to reduce the laboratory, according to the existing pyrolysis furnace for the ball structure, pickling rust and surface treatment, and then estimate the raw material in the process of the actual wear rate, but also determine spheroidization completion by the metallographic diagram.Finally practical in plant equipment, using commercially available large-scale dry pyrolysis furnace. Calculate the use of this equipment to help companies reduce the cost of cleaning and analysis the reuse value of post- decomposition sludge. To achieve sustainable business philosophy, one of Taiwan's green factory indicators