15:02 May 28, 2010 |
English to Chinese translations [PRO] Tech/Engineering - Agriculture Additional field(s): Engineering (general), Environment & Ecology | ||||
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4 | 空气注入法(現地氣提法) |
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空气注入法(現地氣提法) Definition from http://depweb.ksepb.gov.tw: 空氣注入法(Air Sparging) 空氣注入法(Air Sparging, AS)為現地地下水污染整治技術,亦稱現地氣提法(In-situ Air Stripping)。空氣注入法係改良土壤氣體抽除法,利用壓力將空氣或氧氣注入地下水中,產生氣泡,促使含水層(飽和層)之地下水污染物溶出,並揮發至氣相進入透氣層(不飽如層)中,為有效控制氣相污染物的流動,一般會結合土壤氣體抽除法(簡稱AS/SVE),將氣體抽出至地面處理後予以排放。由於此法必須注入空氣或氧氣,可增加地下水溶氧量及不飽和層氣體氧氣濃度,因此可促進污染物被好氧微生物降解。此外,若在注入空氣中加入甲烷,則可促進含氯有機物(如三氯乙烯)被共代謝微生物降解。一般而言,空氣注入法之整治機制,在初期以抽除低分子量、高揮性污染物為主,後期則以生物降解去除高分子量、低揮發性污染物。 ...... Example sentence(s):
Explanation: Simplified Chinese: 空气注入法 |
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