請用此 Handle URI 來引用此文件:
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/63667
標題: | 受含氯有機物污染之地下水整治技術生命週期評估 Life Cycle Assessment for Remediation Technologies Application to Groundwater Contaminated with Chlorinated Volatile Organic Compounds |
作者: | Jung-Yuan Lin 林榕淵 |
指導教授: | 闕蓓德(Pei-Te Chiueh) |
關鍵字: | 含氯有機物,地下水污染整治技術,生命週期評估, Chlorinated organics,Goundwater contamination remediation,Life Cycle Assessment (LCA), |
出版年 : | 2012 |
學位: | 碩士 |
摘要: | 近年來廢棄工廠及營運中工廠相繼爆發土壤�地下水污染事件,其中不少化學工廠、電子工廠及塑膠工廠等,因不當使用含氯有機溶劑,造成土壤�地下水受含氯有機物污染,導致附近環境品質遭受影響,為此環保署乃積極要求土地所有權人或管理人進行土壤�地下水污染改善作業,以期該地下環境回復其原有功能。本研究為瞭解常用於地下水污染場址之4種現地整治技術(地下水抽除處理、地下水循環井、增強還原脫氯技術及現地化學氧化技術),於場址整治期間對環境的衝擊,乃依據案例場址的模場試驗成果及相關文獻,推估各技術所需之物質及能耗,並利用生命週期評估軟體SimaPro 7.2版中的IMPACT 2002+衝擊模式,進行整治場址中間點(Midpoint)及終點(Endpoint)環境衝擊評估,評估的範疇以各技術單獨進行整治期間所需之物質及能耗,功能單位則以去除三氯乙烯濃度至地下水第二類污染管制標準(0.05mg/L)以下作為基礎。各技術於執行場址設置階段特徵化結果顯示,在人類健康、生態系統品質、氣候變遷及資源危害方面,皆以增強還原脫氯技術的危害衝擊最大、其次則為現地化學氧化技術、第三為地下水抽除處理技術,而地下水循環井技術的危害衝擊最小,另依據標準化結果及單項得點結果顯示,增強還原脫氯技術在各危害種類的衝擊最高,其次為現地化學氧化技術、第三為地下水抽除處理技術,第四為地下水循環井技術與特徵化結果相同。顯示設置階段使用的設井物質越多,其危害衝擊則越高。在整治完成後依據特徵化結果顯示,現地化學氧化技術技術的危害衝擊最高、其次是地下水抽除處理,第三是地下水循環井、衝擊最小的為增強還原脫氯技術,經由標準化及特徵化結果顯示,現地化學氧化的危害衝擊最大,其次為地下水抽除處理技術、地下水循環井技術,對環境衝擊最小的技術則為增強還原脫氯技術,然而增強還原脫氯技術於生態品質系統危害衝擊,僅次於地下水抽除處理系統。本研究進行之地下水整治技術生命週期評估成果,僅針對案例場址之特性及模場試驗結果推估,案例場址在執行整治期間所產生之環境衝擊,並不足以代表其他場址在進行整治期間之環境衝擊。 The increasing incidents of soil and groundwater contamination caused by abandon factories in recent years had resulted in environmental impact on the surrounding neighborhoods. Most contamination incidents were due to improper use of chlorinated organic solvents in chemical, electronics and plastic factories. The Taiwan Environmental Protection Administration (EPA) has been actively sought responsibility of the land owner or land management to conduct soil and groundwater contamination improvement and remediation to allow the underground environment returns to its original function. This research based on the pilot test results of the case study sites and utilized the IMPACT 2002+ modules of the Life Cycle Assessment (LCA) software, SimaPro 7.2 to evaluate environmental impact during Midpoint and Endpoint of contamination remediation among the four groundwater contamination remediation technologies including, Pump and Treat, Groundwater Circulation Wells (GCW), Enhanced Reductive Dechlorination and In-situ Chemical Oxidation (ISCO). The scope of the assessment includes the estimation of material and energy consumption of each groundwater contamination remediation technologies being applied alone. And the functional unit was set as decreasing the concentration of trichloroethylene (TCE) to below the second category of the Taiwan Groundwater Pollution Control Standards (0.05mg/L/). Characterization results of the implementation stage of the sites remediation illustrated that that Enhanced Reductive Dechlorination technology caused the greatest impact on human health, ecological system quality, climate change and resources hazard. ISCO is of less impact and followed by Pump and Treat. GCW would cause the least impact on environment. Standardization results and individual point results indicated that Enhanced Reductive Dechlorination technology has the highest ranking of impact on each impact hazard types, followed but ISCO, third would be Pump and Treat and the forth was GCW and which was similar to the characterization results. The result implies that the more material was applied during groundwater well installations the greater impact would be caused to the environment. Based on characterization results after completion of remediation, ISCO poses the greatest impact to the environment than Pump and Treat. The third ranking was GCW followed by the Enhanced Reductive Dechlorination technology. The standardization and characterization results indicated ISCO caused the greatest impact, followed by Pump and Treat and GCW. The Enhanced Reductive Dechlorination caused the least impact, however, the ecological impact of Enhanced Reductive Dechlorination was similar to GCW. This LCA of groundwater remediation technologies is limited to the estimation made based on pilot test results of each case study sites and the site specific characteristics. Hence, it would not be enough to represent environmental impact of such remediation technology being applied on other remediation sites. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/63667 |
全文授權: | 有償授權 |
顯示於系所單位: | 環境工程學研究所 |
文件中的檔案:
檔案 | 大小 | 格式 | |
---|---|---|---|
ntu-101-1.pdf 目前未授權公開取用 | 1.26 MB | Adobe PDF |
系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。