Method and apparatus for recycling sewage sludge utilizing spent water-softener lime
    1.
    发明授权
    Method and apparatus for recycling sewage sludge utilizing spent water-softener lime 失效
    利用废水软化剂石灰回收污水污泥的方法和设备

    公开(公告)号:US06887389B2

    公开(公告)日:2005-05-03

    申请号:US10277317

    申请日:2002-10-23

    Applicant: Wendell Judd

    Inventor: Wendell Judd

    CPC classification number: C02F11/10 Y02W10/40 Y10S210/919

    Abstract: A method and apparatus are disclosed for mixing sewage sludge with spent water-softener lime in a ratio of approximately 10:1 on a wet basis. The mixture is introduced to a rotary pre-dryer kiln and a rotary combuster kiln to kill pathogens. An ash by-product and gases are thereby produced. The ash by-product can be disposed of at much less cost or can be incorporated in a variety of applications such as an aggregate substitute.

    Abstract translation: 公开了一种在湿基础上以约10:1的比例混合污水污泥与废水软化剂石灰的方法和装置。 将混合物引入到旋转预干燥器窑和旋转燃烧器窑中以杀死病原体。 由此产生灰分副产物和气体。 灰分副产物可以以低得多的成本处理,或者可以并入各种应用中,例如聚合物替代物。

    Water retardant covering material for solid waste landfills
    2.
    发明授权
    Water retardant covering material for solid waste landfills 失效
    固体废物填埋场的阻燃覆盖材料

    公开(公告)号:US5054406A

    公开(公告)日:1991-10-08

    申请号:US551186

    申请日:1990-07-11

    Applicant: Wendell Judd

    Inventor: Wendell Judd

    Abstract: The present invention describes a water retardant material produced by a mixture of earthen clay and 15% to 25% by weight of recycled paper pulp sludge. Paper pulp sludge is incinerated in a rotary kiln, typically a rotary cement kiln asphalt dryer, or fluidized bed incinerator. Paper pulp sludge is fed continuously into said rotary kiln while temperature are maintained in the range of approximately 800.degree. to 3500.degree. F. During incineration, mixing catalysts (typically casein or soy protein) and wood pulp fibers are burned while moisture is evaporated. The resulting incinerated product consists essentially of carbonate particles which are collected for subsequent use. Use of this material as a water retardant covering for landfills is described.

    Abstract translation: 本发明描述了由土粘土和15%至25%重量的再生纸浆污泥的混合物制成的阻燃材料。 纸浆泥浆在回转窑,通常是旋转水泥窑沥青干燥器或流化床焚烧炉中焚烧。 将纸浆泥浆连续地进料到所述回转窑中,同时将温度保持在约800°至3500°F的范围内。在焚烧期间,混合催化剂(通常为酪蛋白或大豆蛋白)和木浆纤维在水分蒸发时燃烧。 所得到的焚烧产物基本上由碳酸盐颗粒组成,其被收集用于随后的使用。 描述了使用这种材料作为垃圾填埋物的阻水剂覆盖物。

    Method for recycling papermaking sludge
    3.
    发明授权
    Method for recycling papermaking sludge 失效
    回收造纸污泥的方法

    公开(公告)号:US5392721A

    公开(公告)日:1995-02-28

    申请号:US238872

    申请日:1994-05-06

    Applicant: Wendell Judd

    Inventor: Wendell Judd

    Abstract: The present invention provides methods for the reduction and recycling of papermaking sludge. Papermaking sludge is incinerated in a rotary heater, typically a rotary cement kiln, asphalt dryer, or specially designed rotary kiln or incinerator. Aggregate may be combined with the sludge to provide better dispersion of the sludge within the heater, and to facilitate heat transfer. Once in operation, the heat of sludge combustion is added to the process heat, resulting in markedly reduced energy requirements. Papermaking sludge is typically fed continuously into said rotary heater while temperatures in the combustion zone are maintained in the range of approximately 800.degree. to 3500.degree. F. During incineration, mixing catalysts (typically casein or soy protein) and wood fibers are burned, while moisture is evaporated. The resulting product consists essentially of carbonate particles which are collected for subsequent use.

    Abstract translation: 本发明提供了造纸污泥的还原和再循环的方法。 造纸污泥在旋转加热器中焚烧,通常是旋转水泥窑,沥青干燥器或专门设计的回转窑或焚化炉。 聚集体可以与污泥组合以提供污泥在加热器内更好的分散,并促进热传递。 一旦运行,污泥燃烧的热量被加到过程热中,导致能量需求显着降低。 通常将造纸污泥连续加入到所述旋转加热器中,同时燃烧区中的温度保持在约800°至3500°F的范围内。在焚烧期间,将催化剂(通常为酪蛋白或大豆蛋白)和木纤维混合燃烧, 蒸发。 所得产物基本上由碳酸盐颗粒组成,其被收集用于随后的使用。

    Method and apparatus for recycling paper pulp sludge
    4.
    发明授权
    Method and apparatus for recycling paper pulp sludge 失效
    回收纸浆污泥的方法和设备

    公开(公告)号:US5018459A

    公开(公告)日:1991-05-28

    申请号:US471971

    申请日:1989-10-27

    Applicant: Wendell Judd

    Inventor: Wendell Judd

    Abstract: This invention provides a method and apparatus for recycling paper pulp sludge. Paper pulp sludge is incinerated in a rotary kiln, typically a rotary cement kiln, asphalt dryer, or fluidized bed incinerator. Paper pulp sludge is fed continuously into said rotary kiln while temperatures are maintained in the range of approximately 800.degree. to 3500.degree. F. During incineration, mixing catalysts (typicaly casein or soy protein) and wood pulp fibers are burned, while moisture is evaporated. The resulting incinerated product consists essentially of carbonate particles which are collected for subsequent use. Typically, but not exclusively, later use of the resulting product could be as mineral filler binding agents in the manufacture of construction products such as concrete, asphalt and others; or in gravel-based construction operations; or in earthen-fill constructions operations; or in other ways.

    Abstract translation: 本发明提供一种回收纸浆污泥的方法和装置。 纸浆泥浆在旋转窑中焚烧,通常是旋转水泥窑,沥青干燥器或流化床焚化炉。 纸浆泥浆连续进料到所述回转窑中,同时将温度保持在约800°至3500°F的范围内。在焚化过程中,将水分蒸发同时混合催化剂(典型的酪蛋白或大豆蛋白)和木浆纤维。 所得到的焚烧产物基本上由碳酸盐颗粒组成,其被收集用于随后的使用。 通常但不排他地,后来使用所得产品可以是制造建筑产品如混凝土,沥青等的矿物填料粘合剂; 或以砾石为基础的施工作业; 或在土地填充建筑作业中; 或以其他方式。

Patent Agency Ranking