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    • 2. 依法登记的发明
    • Mine tailings replacement
    • 矿尾矿更换
    • USH1584H
    • 1996-08-06
    • US518072
    • 1995-08-22
    • Terry J. MooreWinton G. Aubert
    • Terry J. MooreWinton G. Aubert
    • B09B1/00E21C41/32
    • E21C41/32B09B1/008
    • Mine tailings and similar materials are disposed of by replacing the tailings in underground mineworks including the shafts, adits and drifts by forming a slurry of tailings using dredging or similar mixing processes and pumping the slurry to the mineworks. Cementitious materials may be added to selected quantities of the tailings slurries to form cement plugs for placement at selected intervals in the mineworks to minimize connectivity of the mineworks shafting, adits and drifts. The mineworks may be dewatered to provide a source of water for the slurrification process and the water may be reused after separation from the slurry. The disposal process provides a convenient way of replacing mine tailings in a repository of similar mineralogy and at least partially eradicates abandoned mineworks, including shafting, adits and drifts, which otherwise might require continual monitoring and dewatering.
    • 通过使用疏浚或类似的混合过程形成尾矿浆料并将浆料泵送到工作中,通过替代地下井下作业中的尾矿,包括井,漂移和漂移来替代尾矿和类似材料。 可以向选定量的尾矿浆料中加入水泥材料,以形成水泥塞,以便在工作中以选定的间隔放置,以最小化作业轴系,适应和漂移的连接。 可以将这些功能脱水以提供用于排气过程的水源,并且在从浆料中分离出来之后可以重复使用水。 处理过程提供了一种替代类似矿物储藏库中的矿尾矿的便利方法,并至少部分消除了遗弃的作业,包括轴系,适应和漂移,否则可能需要持续监测和脱水。
    • 4. 发明授权
    • Soil remediation method
    • 土壤修复方法
    • US5782580A
    • 1998-07-21
    • US729897
    • 1996-10-15
    • Winton G. AubertC. Richard Knowles
    • Winton G. AubertC. Richard Knowles
    • B09C1/00B09C1/02B09C1/06B09C1/08
    • B09C1/08B09C1/00B09C1/02B09C1/06B09C2101/00
    • A method is provided for remediation of soils contaminated with at least one volatile organic contaminant, such as benzene, toluene, xylene, polynuclear aromatics and the like. The method includes placing a layer of a vapor barrier material over the contaminated soil and thereafter treating the soil so as to stabilize the soil and thereby reduce emissions of the volatile organic contaminants therefrom. The vapor barrier material is selected from oil-based muds, natural gels, and aqueous surfactant-based foams, and in particular, certain aqueous surfactant based foams which are relatively easy to generate and use, as well as being long-lasting in effect. The method may obviate the need to chemically treat a remediation site, or erect costly containment structures, such as a tent or canopy, to reduce emissions of the volatile contaminants during soil remediation activities.
    • 提供了一种用于补救被至少一种挥发性有机污染物如苯,甲苯,二甲苯,多核芳烃等污染的土壤的方法。 该方法包括将一层蒸气阻挡材料放置在污染的土壤上,然后处理土壤以便稳定土壤,从而减少挥发性有机污染物的排放。 蒸气阻隔材料选自油基泥浆,天然凝胶和基于表面活性剂的水性泡沫,特别是某些相对易于生成和使用的水性表面活性剂基泡沫体,以及具有长效性。 该方法可以消除在土壤修复活动期间化学处理修复场所或竖立昂贵的容纳结构(例如帐篷或罩)以减少挥发性污染物的排放的需要。