Method for the remediation of contaminated soil
    1.
    发明授权
    Method for the remediation of contaminated soil 有权
    污染土壤修复方法

    公开(公告)号:US08864412B2

    公开(公告)日:2014-10-21

    申请号:US13347885

    申请日:2012-01-11

    申请人: Dale Kunz

    发明人: Dale Kunz

    IPC分类号: B09C1/06 B09C1/02

    CPC分类号: B09C1/025 B09C1/062

    摘要: A containment chamber is constructed by excavating a pit at the site of oil-contaminated sand and lining the pit with an impermeable, heat-resistant, flexible plastic liner. An array of spaced apart heating assemblies is positioned to cover the bottom of the chamber. Each heating assembly may include an elongate linear electric resistance heater positioned within a tubular slotted sand screen. The containment chamber is filled with a charge of contaminated sand. Solvent, such as diesel fuel, is pumped into the elongate passageways defined between the heaters and screens. The heaters are actuated to vaporize the solvent, which moves through the screen slots and convectively permeates the charge. The vapor transfers heat to the oily sand and condenses. Condensed solvent and heated oil drain and are recovered from the chamber.

    摘要翻译: 通过在油污砂的位置挖掘一个坑,并用不透水,耐热,柔性的塑料衬里衬砌坑,构成安全壳。 间隔开的加热组件的阵列被定位成覆盖室的底部。 每个加热组件可以包括定位在管状开槽砂筛中的细长线性电阻加热器。 安全壳内充满污染的沙子。 诸如柴油燃料的溶剂被泵送到在加热器和筛网之间限定的细长通道中。 启动加热器以蒸发溶剂,溶剂移动通过筛槽并对流地渗透进料。 蒸汽将热量传递到油砂并冷凝。 冷凝溶剂和加热油排放,并从室中回收。

    Method of decontaminating soils
    2.
    发明授权
    Method of decontaminating soils 失效
    净化土壤的方法

    公开(公告)号:US06245241B1

    公开(公告)日:2001-06-12

    申请号:US09174670

    申请日:1998-10-19

    IPC分类号: C02F172

    摘要: In a method of decontaminating soils, sediments and mud including at least a sand fraction and a fine particle fraction which contains a particle-like silt component to which particularly contaminants comprising heavy metals and organic compounds adhere, and wherein the contaminated silt component is separated from the mineral silt component, the fine particle fraction including the contaminants is subjected essentially at the same time to a cavitation and an oxidation treatment before the contaminated silt component is separated from the mineral silt component.

    摘要翻译: 在一种净化土壤,沉积物和泥浆的方法中,至少包括砂粒和细颗粒级分,其含有特别是包含重金属和有机化合物的污染物的颗粒状淤泥组分,并且其中污染的淤泥组分与 在将污染的淤泥组分与矿物淤泥组分分离之前,矿物淤泥组分,包括污染物的细颗粒级分基本上同时进行气蚀和氧化处理。

    Enhancement of in situ microbial remediation of aquifers
    3.
    发明授权
    Enhancement of in situ microbial remediation of aquifers 失效
    增强含水层的原位微生物修复

    公开(公告)号:US5265674A

    公开(公告)日:1993-11-30

    申请号:US893458

    申请日:1992-02-20

    摘要: Methods are provided for remediating subsurface areas contaminated by toxic organic compounds. An innocuous oil, such as vegetable oil, mineral oil, or other immiscible organic liquid, is introduced into the contaminated area and permitted to move therethrough. The oil concentrates or strips the organic contaminants, such that the concentration of the contaminants is reduced and such contaminants are available to be either pumped out of the subsurface area or metabolized by microorganisms. Microorganisms may be introduced into the contaminated area to effect bioremediation of the contamination. The methods may be adapted to deliver microorganisms, enzymes, nutrients and electron donors to subsurface zones contaminated by nitrate in order to stimulate or enhance denitrification.

    摘要翻译: 提供了用于修复受有毒有机化合物污染的地下区域的方法。 将无毒油(例如植物油,矿物油或其他不混溶的有机液体)引入污染区域并允许其移动通过。 油浓缩或剥离有机污染物,使得污染物的浓度降低,并且这些污染物可用于从地下区域泵出或被微生物代谢。 微生物可能被引入污染区域以实现污染物的生物修复。 这些方法可以适于将微生物,酶,营养物质和电子给体输送到被硝酸盐污染的地下区域,以刺激或增强反硝化作用。

    Separation of oils from solids
    4.
    发明授权
    Separation of oils from solids 失效
    油与固体分离

    公开(公告)号:US5156686A

    公开(公告)日:1992-10-20

    申请号:US621039

    申请日:1990-11-30

    摘要: Drill cuttings are cleaned of oil-based drilling mud and oil using a cleaning agent, such as a C6-C10 carboxylic acid, that is preferentially oil soluble at one pH and preferentially water soluble at another pH. The oily cuttings are treated with the carboxylic acid and then washed with an aqueous, alkaline washing solution, which converts the carboxylic acid to its water soluble salt and, with vigorous agitation, lifts most of the oil from the cuttings. In other embodiments, the process is used for cleaning oil-contaminated soil, sand, and gravel, and for separating the oils from the solids in oily sludges.

    摘要翻译: 使用清洁剂(如C 6 -C 10羧酸)在钻井泥浆和油中清洗钻孔切屑,该清洁剂优选在一个pH下为油溶性且优选在另一个pH下为水溶性。 将油状切屑用羧酸处理,然后用碱性水溶液洗涤,将其转化为水溶性盐,并在剧烈搅拌下将大部分油从切屑中提取出来。 在其它实施方案中,该方法用于清洁受油污染的土壤,沙子和砾石,并将油与固体物质分离在油性污泥中。

    Water managed solvent extraction process for the organic wastes
    8.
    发明授权
    Water managed solvent extraction process for the organic wastes 失效
    用于有机废物的水处理溶剂萃取过程

    公开(公告)号:US5573672A

    公开(公告)日:1996-11-12

    申请号:US411351

    申请日:1995-03-21

    摘要: The invention relates to a process for separating extractable organic material from a composition comprising organic material intermixed with solids and water. The composition is contacted with a solvent and a dehydrating agent. The dehydrating agent removes water, improves the solvent extraction, and aids in later separation of the solids from the solvent. The process additionally provides a means for removing cyanide compounds from the composition and fixating the metals against leaching.

    摘要翻译: 本发明涉及从包含与固体和水混合的有机材料的组合物中分离可提取有机材料的方法。 将组合物与溶剂和脱水剂接触。 脱水剂除去水,改善溶剂萃取,有助于固体从溶剂中分离。 该方法另外提供了从组合物中除去氰化物化合物并固定金属以防止浸出的方法。

    Separation of oils from solids
    9.
    发明授权

    公开(公告)号:US5234577A

    公开(公告)日:1993-08-10

    申请号:US904383

    申请日:1992-06-25

    摘要: Drill cuttings are cleaned of oil-based drilling mud and oil using a cleansing agent, such as a C6-C10 carboxylic acid, that is preferentially oil soluble at one pH and preferentially water soluble at another pH. The oily cuttings are treated with the carboxylic acid and then washed with an aqueous, alkaline washing solution, which converts the carboxylic acid to its water soluble salt and, with vigorous agitation, lifts most of the oil from the cuttings. In other embodiments, the process is used for cleaning oil-contaminated soil, sand, and gravel, and for separating the oils from the solids in oily sludges.