Plug flow anaerobic digester
    4.
    发明授权
    Plug flow anaerobic digester 失效
    堵塞式厌氧消化器

    公开(公告)号:US06673243B2

    公开(公告)日:2004-01-06

    申请号:US09919710

    申请日:2001-08-01

    IPC分类号: C02F300

    摘要: A simple, reliable, inexpensive, and efficient anaerobic digester for treating organic wastes at a shortened residence time is described. The anaerobic digester is a multi-chambered digester that can handle wastewater and sludge in a large volume at a high flow rate. The digester also allows collection of methane gas for use as an energy source. The reactor is based on a sequential series of reaction chambers in a design that does not require internal moving parts. The volume of the chambers is adjusted to control the relative residence time of the waste to select an anaerobic microorganism group or groups that can efficiently digest the waste presented to that chamber. Under most conditions, no addition of bacteria is necessary. The digester works efficiently using microbes native to the waste material. After the reaction chambers and just prior to leaving as effluent, a settling chamber is located to reclaim the microbes and remove additional solids. In one embodiment, the reactor comprises four sequential chambers. However, other chamber numbers and geometries will achieve the same result if the residence time in each chamber is properly adjusted. Neither pH nor temperature needed to be controlled. However, for a higher yield of methane, pH may be controlled from about 6 to about 8.

    摘要翻译: 描述了一种用于在缩短停留时间处理有机废物的简单,可靠,廉价且高效的厌氧消化器。 厌氧消化器是一种多室式蒸煮器,可以高流量大量处理废水和污泥。 蒸煮器还可以收集用作能源的甲烷气体。 反应器基于不需要内部移动部件的设计中的连续的反应室系列。 调整室的体积以控制废物的相对停留时间,以选择能有效消化呈现给该室的废物的厌氧微生物组或组。 在大多数条件下,不需要添加细菌。 消化器可以有效地利用废物原料的微生物。 在反应室之后,在作为流出物离开之前,定位沉淀室以回收微生物并除去附加的固体。 在一个实施例中,反应器包括四个顺序室。 然而,如果适当地调节每个室中的停留时间,其他室号和几何结果将获得相同的结果。 pH和温度都不需要控制。 然而,对于更高的甲烷产率,可以将pH控制在约6至约8。

    Absorptive-filtration media for the capture of waterborne or airborne constituents
    8.
    发明授权
    Absorptive-filtration media for the capture of waterborne or airborne constituents 有权
    用于捕获水性或空气成分的吸收 - 过滤介质

    公开(公告)号:US06468942B1

    公开(公告)日:2002-10-22

    申请号:US09714366

    申请日:2000-11-16

    申请人: John J. Sansalone

    发明人: John J. Sansalone

    IPC分类号: B01J2002

    摘要: An adsorptive-filtration media for the capture of waterborne or airborne constituents. The media comprises a granular substrate and an amphoteric compound bonded to the substrate in the presence of a crystal inhibiting agent. The media can also comprise a substrate having a specific gravity of less than 1.0 and an amphoteric compound bonded to the substrate. Another media comprises a substrate with a specific surface area of greater than 0.1 m2/gm and an amphoteric compound bonded to the substrate. Another media includes a granular substrate and a manganese oxide amphoteric compound formed on the substrate. Also disclosed is a pavement material for the capture of waterborne constituents. The pavement material comprises a porous pavement substrate and an amphoteric compound bonded to the substrate. Also disclosed is a method for producing a porous, cementitious material. The method includes the steps of providing and thoroughly mixing cement and aggregate, mixing water with the cement and aggregate into a slurry while maintaining a water to cement ratio of less than one, initiating curing of said slurry under pressure and in the presence of steam, and continuing the curing at ambient temperature and pressure until the cementitious material is substantially dry.

    摘要翻译: 用于捕获水性或空气成分的吸附过滤介质。 介质包括粒状基质和在晶体抑制剂存在下与基底结合的两性化合物。 介质还可以包含比重小于1.0的基底和与基底结合的两性化合物。 另一介质包括比表面积大于0.1m 2 / gm的基底和与基底结合的两性化合物。 另一种介质包括形成在基底上的颗粒基质和氧化锰两性化合物。 还公开了用于捕获水性成分的路面材料。 路面材料包括多孔路面基材和与基材结合的两性化合物。 还公开了一种生产多孔水泥质材料的方法。 该方法包括以下步骤:提供并充分混合水泥和骨料,将水与水泥和骨料混合成浆料,同时保持水与水泥比小于1,在压力和蒸汽存在下引发所述浆料的固化, 并在环境温度和压力下继续固化,直到水泥质材料基本上干燥为止。