Sequential biological/chemical/biological treatment of organic waste
    1.
    发明授权
    Sequential biological/chemical/biological treatment of organic waste 失效
    有机废物的顺序生物/化学/生物处理

    公开(公告)号:US5955350A

    公开(公告)日:1999-09-21

    申请号:US800134

    申请日:1997-02-13

    摘要: A process for remediation of contaminated solid materials comprising polynuclear aromatic hydrocarbon contaminated solid materials, polychlorinated hydrocarbon contaminated materials, and mixtures thereof by sequential biological/chemical/biological treatment in which the contaminated solid materials are biodigested under suitable conditions by a first aerobic or anaerobic digestion, producing a first biodigestion product. The first biodigestion product is then contacted for chemical treatment with hydrogen peroxide in the presence of ferrous ion in amounts and under conditions suitable for chemical oxidation, forming a mixture and oxidizing the first biodigestion product, producing biodegradable hydrocarbon product materials having enhanced biodegradability. The product materials are then biodigested under suitable conditions by a second aerobic or anaerobic digestion.

    摘要翻译: 通过连续的生物/化学/生物处理,通过第一次有氧或厌氧消化在合适的条件下将污染的固体物质生物消化,来修复受污染的固体物质的方法,包括多核芳烃污染的固体物质,多氯化烃污染物质及其混合物 生产第一种生物消化产品。 然后在适量的化学氧化条件下形成混合物并氧化第一生物消化产物,生产可生物降解的碳氢化合物产品,具有增强的生物降解能力,然后将第一种生物消化产品与过氧化氢在亚铁离子存在下接触进行化学处理。 然后通过第二次有氧或厌氧消化,在合适的条件下将产品材料进行生物消毒。

    Integrated chemical/biological treatment of organic waste
    2.
    发明授权
    Integrated chemical/biological treatment of organic waste 失效
    有机废物综合化学/生物处理

    公开(公告)号:US5610065A

    公开(公告)日:1997-03-11

    申请号:US402421

    申请日:1995-03-10

    CPC分类号: B09C1/10 B09C1/08 C12P1/04

    摘要: A process for improved remediation of polynuclear aromatic hydrocarbon and/or polychlorinated hydrocarbon contaminated solid materials by integrated chemical/biological treatment comprising contacting the polynuclear aromatic hydrocarbon and/or polychlorinated hydrocarbon for chemical treatment with hydrogen peroxide in the presence of ferrous ion in liquid solution at a temperature of about 10.degree. C. to about 100.degree. C., oxidizing the polynuclear aromatic hydrocarbon materials and/or polychlorinated hydrocarbon materials and producing more readily biodegradable hydrocarbon product materials, and then biodigesting the product materials by aerobic and/or anaerobic biodigestion. A lower alcohol added to the chemical treatment in accordance with one embodiment further enhances oxidation of 4- to 6-ring aromatic hydrocarbon contaminants.

    摘要翻译: 一种用于通过综合化学/生物处理改进多核芳烃和/或多氯烃污染的固体物质的修复的方法,包括在亚铁离子存在下在液体溶液中使多核芳烃和/或多氯代烃与过氧化氢接触以进行化学处理 温度约10℃至约100℃,氧化多核芳烃材料和/或多氯烃材料并生产更容易生物降解的烃产品材料,然后通过有氧和/或厌氧生物消化生物消化产物材料。 根据一个实施方案添加到化学处理中的低级醇进一步增强4-至6-环芳族烃污染物的氧化。

    Device for viewing beneath circuit boards
    3.
    发明授权
    Device for viewing beneath circuit boards 失效
    用于查看电路板下方的设备

    公开(公告)号:US5052802A

    公开(公告)日:1991-10-01

    申请号:US557251

    申请日:1990-07-24

    IPC分类号: G01N21/88 G02B23/24

    CPC分类号: G02B23/2423 G01N21/8803

    摘要: A hand-held, portable, visual inspection aid is described which has a variety of uses in diverse fields, e.g., manufacturing, service and repair industries, health care field, hobby field, etc. The inspection aid includes a light source and a prism having one mirrored surface. Optionally there may also be included a magnifying lens for magnifying the image viewed through the prism. The device is useful for visually inspecting objects in areas not readily viewed with the naked eye.

    摘要翻译: 描述了一种手持式便携式视觉检查辅助装置,其在不同领域中具有多种用途,例如制造业,服务和维修行业,医疗保健领域,业余爱好领域等。检查辅助装置包括光源和棱镜 有一个镜面。 可选地,还可以包括用于放大通过棱镜观看的图像的放大镜。 该装置对于在肉眼不容易观察的区域中目视检查物体是有用的。