201231680 六、發明說明： 【發明所屬之技術領域】 本心月疋有關於一種將廢棄污泥分離出氧化鐵的方法 ’特別是指-種將回收鐵材表面清洗後之廢棄污泥分離出 氧化鐵的方法。 【先前技術】 -般鐵質材料接觸空氣時很容易氧化形成氧化層，而 氧化層之結構較為鬆散且易剝落，因此鐵質材料長期曝露 於空氣中之結果不僅對材質造成腐触、有礙觀瞻且亦會對 該材質之強度造成嚴重影響，喪失原有功能。 為避免上述困擾，一般鐵質材料使用前，均需施以表 面處理以確保美觀及耐久性。表面處理為藉由電鍵、化成 處理等工業技術，增加金屬件表面之抗姓、耐候性及後續 製程(如：喷塗)之附著性’同時亦具有裝飾效果，甚至可以 改變金屬表面之機械性質。但其加工製程令因製程需要， 需先將待處理之金屬件表面進行清洗，以禮保後段製程順 利進仃#此階奴產生之廢水排放至廢水處理廠處理後形 成廢棄污泥。 目前一般處理廢棄污泥的方式，多採掩埋或固化處理 ’但因上述處理後的廢棄污泥中含相當高含量之鐵成分 (2〇3 3里8Gwt/e以上），且現今掩埋場亦逐漸趨於飽和的 :況下，以掩埋處理並非有效的解決之道，亦不符合現代 環保講求資源回收再利用之精神。 由上述說明可知，鐵質材料表面清洗製程所產生之廢 201231680 棄〜尼中所含高濃度之鐵成分，如何以高效率且不致於對 環境造成Η影響之再利㈣方式回收，提高其附加價值 ，又能以低成本之廢棄污泥處理方法，是目前政府與產業 界在環保意識覺醒之下，亟需尋找與努力的目標。 【發明内容】 因此’本發明之目的，即在裎 |社故供一種以簡易的操作步 驟將廢棄污泥分離出氧化鐵的方法。 於是’本發明將廢棄污泥分離出氧化鐵的方法，包含 一準備步驟’及一乾燥步驟。 該準備步驟是提供鐵材表面清洗製程之廢棄污泥，該 乾燥步驟是將廢棄污泥以一設定溫度進行乾燥，得到一種 氧化鐵成品，其中，以該成品的整體總重量為i⑼wt%計， 氧化鐵的重量百分比是大於80wt〇/。。 本發明之功效在於：藉由上述步驟就能將廢棄污泥中 的氧化鐵回收，操作便捷也不需耗費高成本同時不再以 掩埋或固化的方式處理而能有效減少對於環境之污染。 【實施方式】 “ 點與功效，在 說明中，將可 有關本發明之前述及其他技術内容、特 以下配合參考圖式之一個較佳實施例的詳細 清楚的呈現。 參閱圖i’為本發明將廢棄污泥分離出氧化鐵的方法之 較佳實施例，包含-準備㈣21、一成分分析步驟22，及 一乾燥步驟23。 該準備步驟η是提供鐵材表面清洗製程之廢棄污泥， 201231680 :成分分析步驟22是先以x光榮光分析儀(x， π鑛escence Spectrometer，XRF)對廢棄污泥進行成分之分析 :若廢棄污泥内的氧化鐵含量大於一設定值，才會進行該 2步驟23。其中’ X $螢光分析儀是利用放射源或高電 由激發放射出X光，利用χ光束照射待測物以激發待測物 的疋素’並偵測待測物所釋放出來的勞光，經由分光儀 2其能量與強度後，可提供待測物中組成以的種類與 具有快速、、非接觸、非破壞性及多^素分析等特點 :X光螢光分析儀的結構與特性為熟知該項技藝者 輕易理解’不再贅述，也不予以繪示。 污泥，經 下方表1中’是由兩個鐵材表面處理廠所回收之廢棄 ’-由用X光螢光分析儀分析之結果。 —成分(Wt_%) A薇 αι2ο：( __1 42 Si02 _______ 2 79 _ Fe203 ____ 94 —CaO ___________ 〇 21 -_____Cr203 __ 0.17 B廠 _^·Ρ.(未測得) 1.63 83.8 j^D.(未測得） 0.29 士人丄一 --—v.zy 7麻奎貫施例中，以廢棄污泥的整體重量為I〇〇Wt%計 内的氧化鐵含量必須大…，才會進行 :步驟，以獲得較好之回收效益，因此由表】中可. 廠及W时之廢棄污泥皆可進行後續處理步驟。 针⑼㈣23是將廢棄污泥以—設:=度為5—於本實施例中，是二二丁乾無，而得到—種氧化鐵成品，同樣…榮光分析 201231680 儀進行分析，以該成品的整體總重量為l〇〇wt%計，氧化鐵 的重量百分比是大於80wt%。一般而言，因該種污泥中大 4伤之雜質為填’而該雜質在乾燥過程中即已逸散出，故 於該乾燥步驟23之後’無特別需要再進行其他的分離動作 〇 在工業上’氧化鐵成品中氧化鐵的純度達8〇wt%以上 即有相當之利用價值，不僅可做為製程添加物，更可再製 成99Wt%以上之高價原料，而氧化鐵一般常見之用途包括 磁性材料、塗料、玻璃陶瓷發色劑，及橡膠添加劑…等。因 此，本發明之方法係以創新的思維，將大部分含有高濃度 鐵成份且組成成分單純的鐵材表面清洗程序之廢棄污泥， 適度地回收再利用成為原物料。 综上所述，本發明將廢棄污泥分離出氧化鐵的方法， 能將鐵材表面清洗製程之廢棄污泥，經由簡便的步驟就能 回收氧化鐵，不需再經由掩埋或固化處理，不僅可處理大 量的廢棄污泥並降低處理成本，亦可有效地再利用廢棄污 泥，使物質資源得以妥善再利用，並將其商品化以提高附 加價值，故確實能達成本發明之目的。 准以上所述者，僅為本發明之較佳實施例而已，當不 能以此限定本發明實施之範圍，即大凡依本發明申請:利 範圍及發明說明内容戶斤竹夕館留 谷所作之簡早的等效變化與修飾，皆仍 屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是一流程圖，說明本發明將廢棄污泥分離出氧化 201231680 鐵的方法之較佳實施例。 201231680 【主要元件符號說明】 21 準備步驟 23 乾燥步驟 22 成分分析步驟201231680 VI. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a method for separating waste sludge from iron oxide, which is specifically referred to as separating and oxidizing waste sludge after washing the surface of the recovered iron material. Iron method. [Prior Art] - When the iron material is exposed to air, it is easy to oxidize to form an oxide layer, and the structure of the oxide layer is loose and easy to peel off. Therefore, the long-term exposure of the iron material to the air not only causes corrosion to the material, but also hinders the material. It will also have a serious impact on the strength of the material and will lose its original function. In order to avoid the above problems, the general iron materials are required to be surface treated before use to ensure aesthetics and durability. The surface treatment is to increase the anti-surname, weather resistance and adhesion of subsequent processes (such as spraying) on the surface of metal parts by means of industrial techniques such as electric bonding and chemical conversion. It also has a decorative effect and can even change the mechanical properties of the metal surface. . However, due to the needs of the process, the surface of the metal parts to be treated needs to be cleaned first, and the process of the latter part of the process is smooth. The wastewater generated by this stage slave is discharged to the wastewater treatment plant for treatment to form waste sludge. At present, the method of treating waste sludge is generally used for burial or solidification treatment. However, the waste sludge after the above treatment contains a relatively high content of iron (more than 8 Gwt/e in 2〇3 3), and the current landfill site is also Gradually becoming saturated: Under the circumstances, the solution to landfill is not an effective solution, and it is not in line with the spirit of modern environmental protection and resource recycling. It can be seen from the above description that the waste 201231680 generated by the surface cleaning process of the ferrous material is discarded, and the high-concentration iron component contained in the nitrite is recycled in a high-efficiency manner and is not affected by the environment. The value and the low-cost waste sludge treatment method are the goals of the government and industry in the awakening of environmental awareness. SUMMARY OF THE INVENTION Therefore, it is an object of the present invention to provide a method for separating waste sludge from iron oxide in a simple operation step. Thus, the method of the present invention for separating waste sludge from iron oxide comprises a preparation step' and a drying step. The preparation step is to provide waste sludge for the surface cleaning process of the iron material. The drying step is to dry the waste sludge at a set temperature to obtain a finished iron oxide product, wherein the total weight of the finished product is i (9) wt%. The weight percentage of iron oxide is greater than 80 wt 〇 /. . The effect of the present invention is that the iron oxide in the waste sludge can be recovered by the above steps, and the operation is convenient and does not require high cost and is not treated in a buried or solidified manner, thereby effectively reducing environmental pollution. [Embodiment] In the description, the foregoing and other technical contents of the present invention, and the following detailed description of a preferred embodiment of the present invention will be described in detail. A preferred embodiment of the method for separating waste sludge from iron oxide comprises - preparation (4) 21, a component analysis step 22, and a drying step 23. The preparation step η is an abandoned sludge for providing an iron surface cleaning process, 201231680 The component analysis step 22 is to analyze the composition of the waste sludge by an x-ray luminescence analyzer (XRF): if the iron oxide content in the waste sludge is greater than a set value, the component will be 2Step 23. The 'X$ fluorescence analyzer emits X-rays by excitation using a radioactive source or high-voltage, and irradiates the analyte with a helium beam to excite the halogen of the object to be tested and detects the release of the analyte. After the energy and intensity of the spectrometer 2, the light can be provided to provide the type of the analyte and the characteristics of rapid, non-contact, non-destructive and multi-analytical analysis: X-ray fluorescence analyzer The structure and characteristics are easily understood by those skilled in the art and will not be described or illustrated. Sludge, by the following table 1 'is discarded by two iron surface treatment plants' - by X-ray The results of the analysis by the fluorescence analyzer.—Ingredients (Wt_%) A Wei αι2ο:( __1 42 Si02 _______ 2 79 _ Fe203 ____ 94 —CaO ___________ 〇21 -_____Cr203 __ 0.17 B Factory _^·Ρ.(Not measured) 1.63 83.8 j^D.(not measured) 0.29 士人丄一---v.zy 7 Ma Kui's example, the total weight of waste sludge is I〇〇Wt% Large..., will be carried out: steps to obtain better recovery benefits, so the waste sludge from the factory and W can be used for subsequent processing steps. (9) (4) 23 is to set the waste sludge to: = degree is 5 - in this embodiment, it is a di-n-butyl dry, but a kind of iron oxide finished product, the same ... glory analysis 201231680 instrument for analysis, the total weight of the finished product is l 〇〇 wt%, The weight percentage of iron oxide is more than 80% by weight. Generally, the impurities of the large 4 wounds in the sludge are filled. The impurities have escaped during the drying process, so after the drying step 23, there is no special need to carry out other separation operations. In the industry, the purity of iron oxide in the finished iron oxide product is more than 8 〇 wt%. The equivalent use value can be used not only as a process additive, but also as a high-priced raw material of 99 Wt% or more. The common uses of iron oxide include magnetic materials, paints, glass ceramic coloring agents, and rubber additives. Therefore, the method of the present invention uses an innovative thinking to appropriately recycle and reuse the waste sludge containing a high-concentration iron component and a simple iron surface cleaning process as a raw material. In summary, the method for separating the waste sludge from the waste iron according to the present invention can recover the iron oxide by the waste sludge on the surface of the iron surface cleaning process, and can be recovered through a simple process without burying or curing. It can handle a large amount of waste sludge and reduce the treatment cost, and can effectively reuse the waste sludge, so that the material resources can be properly reused and commercialized to increase the added value, so the object of the present invention can be achieved. The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the practice of the present invention, that is, the application according to the present invention: the scope of interest and the description of the invention are the contents of the house. The short-term equivalent changes and modifications are still within the scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a flow chart showing a preferred embodiment of the method for separating waste sludge from oxidized 201231680 iron according to the present invention. 201231680 [Explanation of main component symbols] 21 Preparation steps 23 Drying steps 22 Component analysis steps
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