EPA-108-FA12-03-A078

108

5,900 千元

固定污染源管制

2019/02/23

2019/12/31

黃盛修

空保處

許平和

國立台灣大學

大氣空氣

細懸浮微粒、可過濾性微粒、可凝結性微粒

PM2.5, FPM2.5, CPM

陳志傑；楊錫賢

林志威

02-33668085#

chihweilin1981@gmail.com

本計畫針對固定污染源排放管道排放之細懸浮微粒(PM2.5)進行量測方法驗證、污染源排放情形進行現況調查，並推廣有效之防制技術。計畫執行結果，CPM量測方法有兩種，包括冷凝法及稀釋法，其中冷凝法會造成可凝結性微粒(CPM)結果的高估，而稀釋法是否適用於排放管道採樣，仍需要驗證。目前用來評估防制設備效能之指標會受到粒徑分布影響，難以評斷其對PM2.5之防制效果，又現行粒狀物防制設備對CPM皆無明顯效果。 本計畫著重於以實驗的方式提升PM2.5檢測的正確性，並開發方法進行粒狀物防制設備效率驗證，同時以採樣與蒐集國內外文獻之方式進行PM2.5現況調查，另辦理PM2.5現場查核輔導與PM2.5防制技術觀摩會，期能提升國內PM2.5防制效果。另協助增(修)訂相關子法，以健全法制，並利於後續執法。 本計畫開發超細懸浮微粒(PM1)旋風分徑器，可有效降低等速採樣與管道沉積；CPM產生器能夠穩定的產生CPM，供後續量測方法之研究；鋼鐵業排放粒狀物之採樣結果顯示，可過濾性微粒/總粒狀物(FPM2.5/TPM)比例低於排放清冊(TEDS10.0)，而其粒狀物主要成分為硫酸鹽。又本計畫建立PM2.5資料，國內排放管道FPM2.5排放平均濃度為8.5 mg/Nm3，CPM為23.1 mg/Nm3，且CPM/PM2.5比例隨著溫度升高而升高。PM2.5防制情形現場查核結果顯示，粒狀物排放之防制主要係以總粒狀物為主。PM2.5防制技術示範說明排氣降溫對PM2.5之減量效果。在協助法規修訂方面，完持修訂之子法可作為未來主管機關執法之依據。

細懸浮微粒、可過濾性微粒、可凝結性微粒

EPA108A078.pdf

8MB

期末報告

2020/3/20 上午 12:00:00

The PM2.5 issues have attracted attention of public for a long time. However, the PM2.5 emitted from stacks still needs to be improved in terms of measurement methods, current situation investigation and control technology. The condensation method has been proven to cause an overestimation of the CPM results, and the dilution method is still applicable to the discharge pipe sampling and still needs to be verified. The current regulations used to evaluate the effectiveness of the control devices will be affected by the particle size distribution, and it is difficult to evaluate the control efficiency of PM2.5. At present, all particulate control devices have poor control efficiency of CPM, and appropriate technology should be found to reduce CPM emissions. This project focused on improving the correctness of PM2.5 measurement method and the development method to verify the APCD efficiency of the PM2.5. The PM2.5 status investigation was conducted by sampling and collecting domestic and foreign literatures. The PM2.5 counseling and control technology demonstration had be held to enhance the domestic PM2.5 control ability. It also assisted in the addition (revision) of relevant regulations to improve the legal system and facilitate subsequent law enforcement. The PM1 cyclone developed by this project can effectively reduce non-isokinetic velocity sampling and transportation deposition. The CPM concentration produced by the CPM generator is stable and can be used to evaluate characteristic of the condensing method and the dilution method. The FPM2.5/TPM ratio of domestic steel industry was lower than TEDS 10.0 and the main component is the SO42-. The PM2.5 database developed by this project shows the average concentration of FPM2.5 was 8.5 mg/Nm3, and the CPM was 23.1 mg/Nm3. The CPM/PM2.5 ratio increased with increasing the temperature. The insuffencient control of PM2.5 were the biggest difficulties in controlling PM2.5 from stack. The low flue gas temperature technology of GGH had been applied in reducing PM2.5. In terms of regulations, the assists in revision of regulations had been completed .

PM2.5, FPM2.5, CPM