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1. 发明授权

US5017289A Process for in situ biodegradation of hydrocarbon contaminated soil 失效
标题翻译：碳氢化合物污染土壤原位生物降解过程
公开(公告)号：US5017289A
公开(公告)日：1991-05-21
申请号：US333048
申请日：1989-04-03
申请人： Douglas L. Ely , David A. Heffner
发明人： Douglas L. Ely , David A. Heffner
IPC分类号： B09C1/10 , C02F3/34
CPC分类号： B09C1/10 , C02F3/34 , Y10S210/901
摘要： The present invention is a process for in situ biodegradation of spilled hydrocarbons. The process involves drawing oxygen into a hydrocarbon contaminated zone. A borehole is drilled into the contaminated zone and gas is evacuated at high rates out of the borehole to thereby draw oxygen from the earth's surface and through the contaminated zone. Surprisingly, the carbon dioxide concentration in the evacuated gas remains high even at the high flow rates. The rate of gas evacuation in the present process is maintained sufficiently high so that the hydrocarbon biodegradation rate is within at least 50% of the maximum hydrocarbon biodegradation within the zone. The process can be applied to both porous and nonporous soils having relatively low water and gas permeability.
摘要翻译：本发明是溢出的烃的原位生物降解方法。该过程包括将氧气吸入碳氢化合物污染区域。将钻孔钻入污染区域，气体以高速率排出井眼，从而从地球表面吸入氧气并通过污染区域。令人惊讶的是，即使在高流量下，抽真空气体中的二氧化碳浓度也保持很高。本方法中的气体排出速率保持足够高，使得烃生物降解速率在该区域内最大烃生物降解的至少50％之内。该方法可以应用于具有相对低的水和气体渗透性的多孔和无孔土壤。

2. 发明授权

US4765902A Process for in situ biodegradation of hydrocarbon contaminated soil 失效
标题翻译：碳氢化合物污染土壤原位生物降解过程
公开(公告)号：US4765902A
公开(公告)日：1988-08-23
申请号：US101358
申请日：1987-09-25
申请人： Douglas L. Ely , David A. Heffner
发明人： Douglas L. Ely , David A. Heffner
IPC分类号： B09C1/10 , C02F3/34 , D06M16/00
CPC分类号： B09C1/10 , C02F3/34 , Y10S210/901
摘要： The present invention is a process for in situ biodegradation of spilled hydrocarbons. The process involves drawing oxygen into a hydrocarbon contaminated zone. A borehole is drilled into the contaminated zone and gas is evacuated at high rates out of the borehole to thereby draw oxygen into the contaminated zone. Surprisingly, the carbon dioxide concentration in the evacuated gas remains high even at the high flow rates.
摘要翻译：本发明是溢出的烃的原位生物降解方法。该过程包括将氧气吸入碳氢化合物污染区域。将钻孔钻入污染区域，气体以高速排出井眼，从而将氧气吸入污染区域。令人惊讶的是，即使在高流量下，抽真空气体中的二氧化碳浓度也保持很高。

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