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公开(公告)号：US5846393A
公开(公告)日：1998-12-08
申请号：US660115
申请日：1996-06-07
摘要： An integrated electrochemical soil remediation method and apparatus for treating contaminated soils, especially those contaminated with mixtures of nonvolatile organic contaminants, ionic contaminants and volatile organic compounds are disclosed. Remediation may be achieved by electrochemically enhancing biodigestion of organic contaminants (using microorganisms present in or added to soil), electrochemically removing ionic contaminants and electrochemically removing volatilized organic contaminants by applying a vacuum over the soil being treated, as dictated by the nature of contamination. Physicochemical conditions of the electrolyte and the soil are managed by monitoring and adjusting the electrolyte. Nutritional needs of microorganisms for biodigestion are adjusted as necessary through the electrolyte.
摘要翻译： 公开了一种用于处理受污染土壤的综合电化学土壤修复方法和装置，特别是那些被非挥发性有机污染物，离子污染物和挥发性有机化合物混合物污染的土壤。 通过电化学增强有机污染物的生物消化（使用存在于土壤中或添加到土壤中的微生物），通过电化学去除离子污染物和电化学去除挥发的有机污染物，可以通过电化学增强对被处理土壤的真空，如污染性质所规定的措施来实现修复。 通过监测和调节电解质来管理电解质和土壤的物理化学条件。 用于生物消化的微生物的营养需求根据需要通过电解质进行调节。
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公开(公告)号：US20070243022A1
公开(公告)日：2007-10-18
申请号：US10581818
申请日：2003-12-04
申请人： Wieberen Pool
发明人： Wieberen Pool
摘要： During in situ electroremediation of soil electric fields generated by electrodes (10, 12) that are located in the soil are used to move contamination, complexing agents, chemical reagents and/or nutrients through soil or to heat the soil. Control of the voltages and/or currents on or through the electrodes (10, 12) is used to prevent electrode clogging problems, to reduce unnecessary power consumption and/or to prevent boiling. In one aspect (electrokinetic remediation and electro heating) the current through selected electrodes (10, 12) is temporarily stepped down if the onset of clogging and or boiling is detected from an increase in the electrical resistances from an electrode into the soil. Preferably an effect of soil resistivity changes on the detection is removed by using sensing electrodes (14a, 14b) in the soil. In another aspect (elektrokinetic (bio) fence/screen) the voltage or current is adapte dependent on measured groundwater flow speed changes, so that the method remains effective with minimum power consumption. In yet another aspect (electrokinetic phyto remediation) polarity reversals of the current are timed using cumulative current measurements.
摘要翻译： 在位于土壤中的电极（10,12）产生的土壤电场的原位电化学被用于通过土壤移动污染物，络合剂，化学试剂和/或营养物质或加热土壤。 在电极（10,12）上或通过电极（10,12）的电压和/或电流的控制用于防止电极堵塞问题，减少不必要的功率消耗和/或防止沸腾。 在一个方面（电动修复和电加热）中，如果从电极到土壤的电阻的增加中检测到堵塞和/或沸腾的开始，则暂时降低通过选定电极（10,12）的电流。 优选通过在土壤中使用感测电极（14a，14b）来去除土壤电阻率变化对检测的影响。 在另一方面（电动（生物）栅栏/屏幕），电压或电流适应取决于测量的地下水流速变化，使得该方法在最小功耗下保持有效。 在另一方面（电动植物修复）中，使用累积电流测量对电流的极性反转进行定时。
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公开(公告)号：US5589056A
公开(公告)日：1996-12-31
申请号：US424073
申请日：1995-04-19
申请人： Wieberen Pool
发明人： Wieberen Pool
CPC分类号： B09C1/085
摘要： This invention relates to a process for electroreclamation of soil material. A plurality of electrodes is brought into current-conducting connection with the soil material to be reclaimed. One or more of the electrodes are brought into current-conducting connection with the positive or negative pole of a source of DC voltage, and the remaining electrodes are brought into contact with the other pole of the source of DC voltage. There are thus formed one or more anodes and one or more cathodes. An electric current is passed through the soil material to be reclaimed between the differently charged electrodes. According to the invention, the physico-chemical parameters of the medium of both the regions adjoining the anode(s) and the regions adjoining the cathode(s) are controlled.
摘要翻译： 本发明涉及一种土壤材料的电沉积方法。 多个电极与待回收的土壤材料进行导电连接。 一个或多个电极与直流电压源的正极或负极导通，其余电极与直流电压源的另一个极接触。 因此形成一个或多个阳极和一个或多个阴极。 电流通过土壤材料，以在不同电荷的电极之间进行回收。 根据本发明，控制邻近阳极的两个区域和与阴极相邻的区域的介质的物理化学参数。
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公开(公告)号：US5433829A
公开(公告)日：1995-07-18
申请号：US47079
申请日：1993-04-16
申请人： Wieberen Pool
发明人： Wieberen Pool
CPC分类号： B09C1/085
摘要： This invention relates to a process for electroreclamation of soil material. A plurality of electrodes is brought into current-conducting connection with the soil material to be reclaimed. One or more of the electrodes are brought into current-conducting connection with the positive or negative pole of a source of DC voltage, and the remaining electrodes are brought into contact with the other pole of the source of DC voltage. There are thus formed one or more anodes and one or more cathodes. An electric current is passed through the soil material to be reclaimed between the differently charged electrodes. According to the invention, the physico-chemical parameters of the medium of both the regions adjoining the anode(s) and the regions adjoining the cathode(s) are controlled.
摘要翻译： 本发明涉及一种土壤材料的电沉积方法。 多个电极与待回收的土壤材料进行导电连接。 一个或多个电极与直流电压源的正极或负极导通，其余电极与直流电压源的另一个极接触。 因此形成一个或多个阳极和一个或多个阴极。 电流通过土壤材料，以在不同电荷的电极之间进行回收。 根据本发明，控制邻近阳极的两个区域和与阴极相邻的区域的介质的物理化学参数。
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