污泥焚化是目前處理污水廠濃縮污泥的最佳方法之一。污泥焚化可以達到減量、安定、安全及資源再利用的目標。台灣地狹人稠,土地資源有限,掩埋場址不易尋找,污泥焚化後再掩埋,可延長現有掩埋場使用年限。 污泥焚化需要大量的熱能,使用廢溶劑作為焚化之輔助燃料,除了可以節省能源外,又可以達到廢溶劑回收再利用之目標。 本研究最主要目的為探討新竹科學工業園區新設污泥焚化廠廢氣處理設施的功能及是否達到原設計的目標。研究結果顯示,污泥焚化廠的廢氣均能達到空污排放標準,其中粒狀污染物為26 mg/Nm3、硫氧化物為19 ppm、氮氧化物為56 ppm、氯化氫為21 ppm、一氧化碳為3ppm、鉛及其化合物為0.024 mg/Nm3、鎘及其化合物為0.002 mg/Nm3、汞及其化合物為0.0008 mg/Nm3、戴奧辛的排放濃度為0.002 ng-TEQ/Nm3,上述數據除說明空氣污染物排放符合法規要求外,並達到建廠設計時所訂定更為嚴苛之保證數據。
Recently, incineration is one of the best way to treat the sludge generating from waste water treatment plant because of volume reduction, detoxification , and deodorization. The final products of sludge burning are bottom ash and fly ash which will lead to final sanitary disposal and prolong the life span of landfill. Sludge burning requires a lot of heat. Using waste solvent as supplementary fuel will save energy and attain the goal of resource reusing. The major study of this thesis is to confirm that air pollutants emission from sludge incinerator owned by Hsin-Chu Science-Based Industrial Park authorities are fully meet the National regulation. According to third party analysis report, the concentration of air pollutants emission from stack are far below National standards. It proves that sludge burning in fluidizing bed incinerator with waste solvent as fuel is feasible and practical.