公开(公告)号：US5733067A

公开(公告)日：1998-03-31

申请号：US701783

申请日：1996-08-26

申请人： Seth C. Hunt ,  Theodore O. Meiggs ,  Lawrence C. Murdoch ,  William W. Slack

发明人： Seth C. Hunt ,  Theodore O. Meiggs ,  Lawrence C. Murdoch ,  William W. Slack

IPC分类号： B09C1/00 ,  B09C1/02 ,  B09C1/08 ,  B09C1/10 ,  C02F3/10 ,  C12S5/00 ,  C12S9/00 ,  E02D3/00 ,  A62D3/00

CPC分类号： B09C1/002 ,  B09C1/02 ,  B09C1/08 ,  B09C1/10 ,  C02F3/101 ,  E02D3/00 ,  B09C2101/00 ,  Y02W10/15

摘要： A method used for in situ remediation of contaminated subsurface ground and subsurface water using chemically or biologically reactive sheets. The reactive or active sheets contain one or more selected compounds capable of recovering, destroying, degrading and immobilizing contaminants in the soil or water. The compounds that will be selected depends on the contaminants to be treated. The compound may be diatomaceaous earth pellets or other porous materials inoculated with selected non-pathogenic microbes, a zero-valent metal such as iron, tin, aluminum and zinc, a leachable compound such as sodium percarbonate or an adsorptive compound such as activated carbon and zeolite. The contaminants may be petroleum hydrocarbons, chlorinated hydrocarbons and other hazardous chemicals. The sheets are formed by injecting a slurry of the selected compound into the subsurface using hydraulic fracturing where the orientation of the fractures is influenced by cutting and preparing a bore hole prior to the injection of the slurry. Also the sheets may be formed by employing high velocity jet-assisted fracturing using air, water and other fluids. The jet-assisted fracturing operates prior to or concurrently with an introduction of a slurry of the selected compound. The sheets may be formed horizontally, vertically and at angles dipping from the horizontal.

摘要翻译： 用于使用化学或生物反应性片材对受污染的地下地下水和地下水进行原位修复的方法。 反应性或活性片材含有一种或多种能够回收，破坏，降解和固定污染物在土壤或水中的化合物。 将被选择的化合物取决于待处理的污染物。 该化合物可以是用选择的非致病微生物，零价金属如铁，锡，铝和锌接触的二硅藻土颗粒或其它多孔材料，可过滤的化合物如过碳酸钠或吸附化合物如活性炭， 沸石。 污染物可能是石油烃，氯化烃和其他有害化学物质。 通过使用水力压裂将选择的化合物的浆料注入到地下形成片材，其中在注入浆料之前，通过切割并制备孔眼来影响裂缝的取向。 此外，也可以通过使用空气，水和其它流体的高速喷射辅助压裂来形成片材。 在引入所选择的化合物的浆液之前或同时进行喷气辅助压裂。 片材可以水平地，垂直地并且以从水平方向倾斜的角度形成。