公开(公告)号：EP0948467A1

公开(公告)日：1999-10-13

申请号：EP97954265.0

申请日：1997-12-23

申请人： Cement Lock Group, L.L.C.

发明人： KAO, Richard, L. ,  RANDHAVA, Sarabjit, S. ,  RANDHAVA, Surjit, S. ,  MENSINGER, Michael, C. ,  REHMAT, Amirali, G. ,  LEE, Anthony, L.

IPC分类号： C04B28 ,  C04B18

CPC分类号： C04B18/108 ,  C04B18/026 ,  Y02W30/91 ,  Y02W30/92 ,  Y10S106/90 ,  C04B18/0436 ,  C04B18/0472

摘要： This invention relates to thermo-chemical remediation and decontamination of sediments and soils contaminated with organic contaminants as well as inorganic materials with subsequent beneficial reuse. Novel environmentally stable products of commercial value are produced when certain additives such as calcium and metal oxides are mixed with the contaminated materials. In the process, the mixture is heated to 1150 °C ∩ 1500 °C to produce a molten reaction product with at least part of an excess amount of oxygen mixture or air is continuously bubbled through the melt in order to provide mixing and achieve high thermal destruction and removal efficiencies of the organic contaminants. The melt is then quickly quenched in moist air, steam, or water to avoid the transformation of the amorphous material into crystals. The inorganic contaminants such as chromium, nickel, zinc, etc. are incorporated and completely immobilized within the amorphous silicate network. Atmospheric emissions resulting from this process are nontoxic and capable of meeting currently specified health and environmental requirements. The amorphous material can be pulverized to yield a powder which evinces cementitious properties either by reaction with alkali solution or by blending it with other materials to produce blended cements. The compressive strengths of the concretes made from the powder of the subject invention and blends thereof are comparable to, or greater than the ASTM requirements for general purpose concrete applications. The powder of the subject invention, blended cements, and concrete/mortar derived therefrom also easily pass the EPA TCLP leach test to achieve environmental acceptability.

公开(公告)号：EP1009491A1

公开(公告)日：2000-06-21

申请号：EP97953412.0

申请日：1997-12-23

申请人： Cement Lock Group, L.L.C.

发明人： KAO, Richard, L. ,  RANDHAVA, Sarabjit, S. ,  RANDHAVA, Surjit, S. ,  MENSINGER, Michael, C. ,  REHMAT, Amirali, G. ,  LEE, Anthony, L.

IPC分类号： A62D3/00 ,  B09B3/00 ,  C04B7/24

CPC分类号： A62D3/38 ,  A62D3/33 ,  A62D2101/20 ,  A62D2101/22 ,  A62D2101/24 ,  A62D2101/40 ,  A62D2101/43 ,  A62D2203/04 ,  A62D2203/10 ,  B09B3/005 ,  B09B3/0066 ,  B09C1/06 ,  B09C1/067 ,  C03B5/005 ,  C04B7/24 ,  C04B18/108 ,  Y02P40/145 ,  Y02P40/58 ,  Y02W30/91 ,  Y02W30/92 ,  Y10S106/90 ,  C04B18/0436 ,  C04B18/0472 ,  C04B7/4484

摘要： This invention relates to remediation and decontamination of sediments and soils contaminated with organic and inorganic contaminants. Environmentally stable products are produced when certain additives such as calcium oxides are mixed with the contaminated materials. In the process, the mixture is heated to produce a molten reaction product with at least part of an excess amount of oxygen mixture or air continuously bubbled through the melt (16) in order to provide mixing and achieve high thermal destruction and removal efficiencies of the organic contaminants. The melt (16) is then quickly quenched in moist air, steam or water to avoid the transformation of the amorphous material into crystals. The inorganic contaminants such as chromium, nickel and zinc are incorporated and completely immobilized within the amorphous silicate network. The amorphous material can be pulverized to yield a powder which evinces cementitious properties by blending it with other materials to produce blended cements.