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    • 7. 发明申请
    • A METHOD OF DECONTAMINATING SOILS AND/OR RESIDUES IN SITU AND EX SITU COMBINING HORIZONTAL RADIAL FLOW TECHNIQUE AND DEPOLLUTING AGENTS
    • 在地下水和地下水中排放土壤和/或残留物的方法和水平径向流动技术和分散剂
    • WO1996000624A1
    • 1996-01-11
    • PCT/CA1995000397
    • 1995-06-28
    • PELLETIER, Marc-Antoine
    • B09C01/00
    • B09C1/105B09C1/005B09C1/02B09C1/06B09C1/08B09C1/10B09C2101/00Y10S588/90
    • A process for in situ remediation of contaminated soils and/or residues is disclosed. This process takes advantage of a horizontal radial flow irrigating/draining system and sensors (8) located at midspacing between parallel conduit lines (5) to create an environment propitious to the action of decontaminating agents (plants, microorganisms, salts, acids, bases, buffers, enzymes, substrates, surfactants, etc.). For example, a water-saturated zone may be created, the level of water containing decontaminating agents is raised, maintained and/or lowered, which water-saturated encourage desorption or solubilization of soluble contaminants, by adjusting and controlling all the parameters of reaction (time, temperature, pH, oxygenation, etc.). The process is easily adaptable for may classes of contaminants, including volatile compounds and light non-aqueous phase liquids, by further installing supplementary sets of conduit lines and pumping means at adequate levels. The site may be remedied by alternating gaseous and liquid modes to optimize the conditions of reaction, which alternation is advantageously achieved in a multi-unit arrangement, one unit being in gaseous mode while another is in liquid mode.
    • 公开了一种对污染土壤和/或残留物进行原位修复的方法。 该过程利用水平径向流动冲洗/排水系统和位于平行管线(5)之间的间隔处的传感器(8),以产生有利于去污剂(植物,微生物,盐,酸,碱, 缓冲液,酶,底物,表面活性剂等)。 例如,可以产生水饱和区域,通过调节和控制反应的所有参数(水分饱和的区域),水含量的去污剂的水平升高,维持和/或降低,水饱和的促进了可溶性污染物的解吸或溶解, 时间,温度,pH,氧合等)。 该方法可以通过进一步安装补充的导管管路组和泵装置在适当的水平上容易地适应于可能类别的污染物,包括挥发性化合物和轻质非水相液体。 可以通过交替的气体和液体模式来改善现场,以优化反应条件,这种交替有利地以多单元布置实现,一个单元处于气态模式,而另一个处于液体模式。