108年度垃圾焚化廠飛灰減量與再利用推動專案工作計畫
| 中文摘要 | 本計畫執行期間自108年6月28日起至109年3月31日止，執行可得如下三項成果： 1.焚化廠整建規劃可採行之飛灰源頭減量技術，包括既有焚化廠可以小幅度更改設施，如廢氣除酸藥劑變更、飛灰再循環技術(僅限於乾式除酸系統)及觸媒濾袋等，又新設焚化廠可考量採高效率技術，如選用碳酸氫鈉作為除酸藥劑、2段式集塵、濕式洗煙或2段式【(半)乾式+濕式】除酸技術、排氣再循環及低溫選擇性催化劑還原法及飛灰循環再使用等。 2.飛灰源頭減量示範驗證結果，其中一模式之換算鈉系反應飛灰相較整建前產出量有明顯減少。另比較該驗證廠之整建前後操作記錄，整建後反應飛灰產出量減少更多。至於鈉系飛灰所含氯離子及鹼性濃度均較鈣系飛灰高，且所含鈣成分較少，因此，較不利後續資源再利用。 3.訂定焚化飛灰綠色循環精進措施，如短程措施係可增加可用暫存及掩埋容積，中程措施係可推動飛灰源頭減量及水洗等無害化處理後再利用，另長程措施係以推動飛灰或水洗飛灰之多元化再利用為主。 4.垃圾焚化廠焚化飛灰再利用管理方式(草案)，建議以技術可行及具完整實績方式為主，即以水洗後飛灰作為水泥生料之替代原料為優先，以減少爭議。 | ||
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| 中文關鍵字 | 焚化飛灰，減量示範驗證，焚化飛灰再利用管理方式草案 | ||
基本資訊
| 專案計畫編號 | EPA108A358 | 經費年度 | 108 | 計畫經費 | 8808.975 千元 |
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| 專案開始日期 | 2019/06/28 | 專案結束日期 | 2020/03/31 | 專案主持人 | 廖明村 |
| 主辦單位 | 廢管處 | 承辦人 | 尹心婕 | 執行單位 | 環興科技股份有限公司 |
成果下載
| 類型 | 檔名 | 檔案大小 | 說明 |
|---|---|---|---|
| 期末報告 | 【全文】108年度垃圾焚化廠飛灰減量與再利用推動專案工作計畫(外部版)R4.pdf | 18MB |
The Project of Incinerator Fly Ash Reduction and Recycling Promotion in 2019
| 英文摘要 | The project was executed from June 28th, 2019 to March 31st, 2020. Achievements made in this project: 1.Fly ash reduction technologies that can be adopted in the incinerator retrofitting project, including the existing incinerator, which can improve facilities slightly, such as replacement of exhaust gas de-acidification chemical agents, updating of fly ash recycling technology (only for dry acid removal systems) and catalyst filtration Bags. The new incinerators can consider the improvement measures, such as the use of sodium bicarbonate as de-acidification chemical agents, 2-stage dust collection, wet smoke washing or 2-stage [(semi) dry + wet] acid removal technology, exhaust gas recirculation and low-temperature selective catalyst reduction and reuse of fly ash recycling. 2.The results of the fly ash reduction validation, one of the mode results show that the sodium-based reaction fly ash is less than the output before construction. In addition, the output of sodium-based reaction fly ash was reduced more compared the operation records of the calcium-based reaction fly ash. As for the sodium-based fly ash, the chloride ion and alkaline concentration are higher than those of the calcium-based fly ash, and the calcium content is less. Therefore, the sodium-based fly ash is not conducive for recycling. 3.Propose the future goals and improve measures of fly ash recycling. For example, short-range measures can increase the available temporary storage and landfill volume. Medium-range measures can promote the reduction of fly ash and decontamination after washing. Long-range measures can promote diversified recycling of ash or washed fly ash. 4.Provide management outline for the recycling of incinerator fly ash, recommend to be based on feasible technology, that is, washed ash as a raw material for cement raw materials. | ||
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| 英文關鍵字 | “Incinerator Fly Ash”, “Reduction Validation”, “Management Proposal of the Recycling for the Incinerator Fly Ash” | ||