12.
    发明专利
    未知

    公开(公告)号:DK0946428T3

    公开(公告)日:2001-09-24

    申请号:DK97951576

    申请日:1997-12-03

    Abstract: Oxidizable contaminants in water are destroyed quickly and efficiently by exposing a contaminated water flow to oxidizing conditions under pressure. Specifically, ozone generated from oxygen and hydrogen peroxide are injected into the water flow in at least one, and preferably more than one, high intensity mixing/reaction stage. The ozone and hydrogen peroxide are injected at velocities and directions approximately matching those of the contaminated water flow. High intensity mixing under pressure facilitates rapid and complete oxidation of the contaminants with minimal stripping of volatile contaminants and waste of undissolved ozone. Residual ozone levels after high intensity mixing are carefully monitored and minimized by adjusting the injection of hydrogen peroxide and ozone in order to suppress the formation of bromate.

    PROCESS AND APPARATUS FOR WATER DECONTAMINATION

    公开(公告)号:CA2299401C

    公开(公告)日:2006-02-07

    申请号:CA2299401

    申请日:1998-08-06

    Abstract: Oxidizable contaminants in water are destroyed rapidly and efficiently by exposing the water to oxidizing conditions under pressure. Specifically, a single dose of hydrogen peroxide may be injected into the water, followed by the repeated injection and mixing of low doses of ozone. In each such high intensity mixing/reaction stage, ozone is inject ed at a pressure, velocity, and direction approximately matching that of the contaminated water flow. High intensity mixing under pressure facilitates rapid and complete oxidation of the contaminants with minimal stripping of volatile contaminants and waste of undissolved ozone. Residual ozone levels after high intensity mixing may be carefully monitored and minimized by adjusting the injection of hydrogen peroxide and ozone in order to suppress the formation of bromate. Additional contaminants may be removed by passing the treated water through activated carbon beds.

    15.
    发明专利
    未知

    公开(公告)号:DE69705424D1

    公开(公告)日:2001-08-02

    申请号:DE69705424

    申请日:1997-12-03

    Abstract: Oxidizable contaminants in water are destroyed quickly and efficiently by exposing a contaminated water flow to oxidizing conditions under pressure. Specifically, ozone generated from oxygen and hydrogen peroxide are injected into the water flow in at least one, and preferably more than one, high intensity mixing/reaction stage. The ozone and hydrogen peroxide are injected at velocities and directions approximately matching those of the contaminated water flow. High intensity mixing under pressure facilitates rapid and complete oxidation of the contaminants with minimal stripping of volatile contaminants and waste of undissolved ozone. Residual ozone levels after high intensity mixing are carefully monitored and minimized by adjusting the injection of hydrogen peroxide and ozone in order to suppress the formation of bromate.

    PROCESS AND APPARATUS FOR WATER DECONTAMINATION
    16.
    发明申请
    PROCESS AND APPARATUS FOR WATER DECONTAMINATION 审中-公开
    水分去除方法和装置

    公开(公告)号:WO9907642A9

    公开(公告)日:1999-06-03

    申请号:PCT/US9816320

    申请日:1998-08-06

    CPC classification number: C02F1/722 C02F1/283 C02F1/78

    Abstract: Oxidizable contaminants in water are destroyed rapidly and efficiently by exposing the water to oxidizing conditions under pressure. Specifically, a single dose of hydrogen peroxide may be injected into the water, followed by the repeated injection and mixing of low doses of ozone. In each such high intensity mixing/reaction stage, ozone is injected at a pressure, velocity, and direction approximately matching that of the contaminated water flow. High intensity mixing under pressure facilitates rapid and complete oxidation of the contaminants with minimal stripping of volatile contaminants and waste of undissolved ozone. Residual ozone levels after high intensity mixing may be carefully monitored and minimized by adjusting the injection of hydrogen peroxide and ozone in order to suppress the formation of bromate. Additional contaminants may be removed by passing the treated water through activated carbon beds.

    Abstract translation: 水中的可氧化污染物通过在压力下暴露于氧化条件下而迅速有效地破坏。 具体地说,可以将单剂量的过氧化氢注入水中,随后重复注射和混合低剂量的臭氧。 在每个这样的高强度混合/反应阶段中,臭氧以与被污染的水流相近的压力,速度和方向注入。 压力下的高强度混合有助于快速和完全地氧化污染物,同时最小程度地剥离挥发性污染物并浪费未溶解的臭氧。 通过调节过氧化氢和臭氧的注入,以便抑制溴酸盐的形成,可以仔细地监测和最小化高强度混合后的残留臭氧水平。 通过将处理过的水通过活性炭床可以除去附加污染物。

    CONTROLLING THE FORMATION OF HEXAVALENT CHROMIUM DURING AN OXIDATIVE REMEDIATION OF A CONTAMINATED SITE
    20.
    发明申请
    CONTROLLING THE FORMATION OF HEXAVALENT CHROMIUM DURING AN OXIDATIVE REMEDIATION OF A CONTAMINATED SITE 审中-公开
    控制污染场地氧化还原过程中六价铬的形成

    公开(公告)号:WO2009005834A2

    公开(公告)日:2009-01-08

    申请号:PCT/US2008008294

    申请日:2008-07-02

    CPC classification number: B09C1/08 B09C1/00 B09C1/002

    Abstract: A method for inhibiting formation of hexavalent chromium during oxidative remediation of a contaminated site containing trivalent chromium is described. The method comprises introducing ozone at a first point to the contaminated site, where the ozone is introduced at a first frequency and for a first period of time, and introducing hydrogen peroxide to the contaminated site, where the hydrogen peroxide is introduced at a second frequency and for a second period of time. The first and second frequencies and first and second periods of time are selected to inhibit formation of hexavalent chromium within the site of remediation.

    Abstract translation: 描述了在含有三价铬的污染位点的氧化修复期间抑制六价铬形成的方法。 该方法包括在第一点将臭氧引入污染场所,其中以第一频率和第一时间段引入臭氧,并将二氧化碳引入污染场所,其中以第二频率引入过氧化氢 并持续第二个时间。 选择第一和第二频率以及第一和第二时间段以抑制修复部位内六价铬的形成。

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