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    Process for the remediation of lead-contaminated soil and waste battery casings
    1.
    发明授权
    Process for the remediation of lead-contaminated soil and waste battery casings 失效
    铅污染土壤和废电池外壳的修复过程

    公开(公告)号：US5766303A

    公开(公告)日：1998-06-16

    申请号：US715340

    申请日：1996-09-18

    申请人： John A. Bitler ,  John P. Baranski

    发明人： John A. Bitler ,  John P. Baranski

    IPC分类号： A62D3/00 ,  A62D3/19 ,  A62D3/40 ,  A62D101/43 ,  B09C1/06 ,  C03B5/00 ,  C03B5/02 ,  C03C1/00 ,  C10B53/00 ,  C22B4/00 ,  C22B7/00 ,  C22B13/02 ,  H01M10/54 ,  C22B13/00

    CPC分类号： A62D3/40 ,  A62D3/19 ,  B09C1/065 ,  B09C1/067 ,  C03B5/005 ,  C03B5/025 ,  C03C1/002 ,  C10B53/00 ,  C22B13/025 ,  C22B4/005 ,  C22B7/003 ,  H01M10/54 ,  A62D2203/10 ,  Y02P10/214 ,  Y02P40/52 ,  Y02W30/84

    摘要： Lead-contaminated soil and battery casings are remediated using a plasma arc furnace which pyrolyzes the soil and waste battery casings so as to form a vitrified slag and a combustible gas, respectively. The combustible gas along with volatilized lead (and other heavy metals which may be present) are transferred to, and used as a primary fuel by, a conventional smelting furnace. The volatilized lead that is entrained in the combustible gas is thus transferred to the recovery and environmental protection/control equipment associated with the smelting furnace or other conversion system. The soil, on the other hand, is converted into a non-toxic (i.e., according to the Toxicity Characteristic Leaching Procedure) vitrified slag by the plasma arc which may be crushed and used as a commercial material (e.g., roadway aggregate, asphalt filler material and the like) or simply transferred to a landfill where it poses no environmental threat.

    摘要翻译： 铅污染的土壤和电池外壳使用等离子体电弧炉进行修复，该等离子体电弧炉分解土壤和废弃电池外壳，以分别形成玻璃化炉渣和可燃气体。 可燃气体与挥发的铅（和其他可能存在的重金属）一起转移到常规熔炼炉中并用作主要燃料。 因此将夹带在可燃性气体中的挥发的铅转移到与冶炼炉或其他转化系统相关的回收和环境保护/控制设备。 另一方面，土壤被转化为无毒（即根据毒性特征浸出程序）玻璃化炉渣等离子体电弧可被粉碎并用作商业材料（如巷道骨料，沥青填料 材料等），或简单地转移到不产生环境威胁的垃圾填埋场。

    Process for recovering metals from electric arc furnace (EAF) dust
    3.
    发明授权
    Process for recovering metals from electric arc furnace (EAF) dust 失效
    从电弧炉（EAF）粉尘中回收金属的工艺

    公开(公告)号：US5942023A

    公开(公告)日：1999-08-24

    申请号：US946583

    申请日：1997-10-07

    申请人： John A. Bitler ,  John P. Baranski ,  Harold R. Larson

    发明人： John A. Bitler ,  John P. Baranski ,  Harold R. Larson

    IPC分类号： C22B4/00 ,  C22B7/02

    CPC分类号： C22B7/02 ,  C22B4/005 ,  Y02P10/212 ,  Y10S75/961

    摘要： Heavy metals substantially free from heavy metal chloride contaminants are recovered from electric arc furnace (EAF) dust by bringing the dust into contact with a carbonaceous reductant utilizing a plasma arc of a DC sealed atmosphere plasma arc furnace so as to volatilize (vaporize) the hazardous heavy metals therein, and then bringing the vaporized heavy metals into contact with an alkali metal gettering agent to thereby form alkali metal chlorides and thereby substantially inhibit the formation of heavy metal chlorides in the off-gas.

    摘要翻译： 通过使用直流密封大气等离子体电弧炉的等离子体电弧，使粉尘与碳质还原剂接触，从电弧炉（EAF）粉尘中回收基本上不含重金属氯化物污染物的重金属，以使挥发（汽化）危险 重金属，然后使蒸发的重金属与碱金属吸附剂接触，从而形成碱金属氯化物，从而基本上抑制废气中重金属氯化物的形成。

    Process and system for the on-site remediation of lead-contaminated soil and waste battery casings
    5.
    发明授权
    Process and system for the on-site remediation of lead-contaminated soil and waste battery casings 失效
    铅污染土壤和废电池外壳的现场修复流程和系统

    公开(公告)号：US5439498A

    公开(公告)日：1995-08-08

    申请号：US149343

    申请日：1993-11-09

    申请人： John A. Bitler ,  John P. Baranski

    发明人： John A. Bitler ,  John P. Baranski

    IPC分类号： B09B3/00 ,  A62D3/00 ,  A62D3/19 ,  A62D3/37 ,  A62D3/40 ,  A62D101/24 ,  A62D101/43 ,  B09B5/00 ,  B09C1/06 ,  C03B5/00 ,  C03B5/02 ,  C03C1/00 ,  C10B53/00 ,  C22B4/00 ,  C22B4/04 ,  C22B7/00 ,  C22B13/02 ,  H01M10/54

    CPC分类号： C03B5/005 ,  A62D3/19 ,  A62D3/40 ,  B09C1/065 ,  B09C1/067 ,  C03B5/025 ,  C03C1/002 ,  C10B53/00 ,  C22B13/025 ,  C22B4/005 ,  C22B7/001 ,  C22B7/003 ,  H01M10/54 ,  A62D2101/24 ,  A62D2101/43 ,  A62D2203/10 ,  Y02P10/214 ,  Y02P40/58 ,  Y02W30/84

    摘要： A mobile system for the remediation of a mixture of lead-contaminated soil and waste lead-acid battery casings includes a plasma arc furnace unit having a plasma arc torch which operates at a sufficiently elevated temperature to (i) convert the battery casings in the mixture into a combustible gas, (ii) volatilize lead contaminants which are present in the mixture and entrain the volatilized lead contaminants as a vapor in the combustible gas, and (iii) vitrify the soil, whereby lead contaminants that were present in the mixture are substantially removed therefrom. An internal combustion engine-driven generator supplies the plasma arc furnace with electrical power. In this regard, the internal combustion engine-driven generator receives the combustible gas from the plasma arc furnace as a fuel source in order to drive the generator. A lead-filtration unit is preferably interposed between the generator and the plasma arc furnace so as to receive the combustible gas generated by the plasma arc furnace and remove the entrained lead contaminants therefrom. A supply of secondary fuel gas (e.g., liquified petroleum gas, natural gas or the like) may optionally be supplied to the internal combustion engine-driven generator as a supplemental fuel together with the combustible gas generated by the plasma arc furnace. The various nit operations may be mounted for mobility (e.g., on truck beds, rail cars or the like) to permit transportation to a landfill in need of remediation.

    摘要翻译： 用于修复铅污染土壤和废铅酸蓄电池壳体的混合物的移动系统包括具有等离子弧焊炬的等离子体电弧炉单元，其在足够高的温度下操作以（i）将混合物中的电池壳体 （ii）使存在于混合物中的铅污染物挥发，并将挥发的铅污染物作为可燃气体中的蒸气夹带，和（iii）使土壤玻璃化，由此混合物中存在的铅污染物基本上 从中移除。 内燃机驱动的发电机为等离子弧炉提供电力。 在这方面，内燃机驱动的发电机接收来自等离子体电弧炉的可燃气体作为燃料源，以驱动发电机。 优选地，在发电机和等离子体电弧炉之间插入铅过滤单元，以便接收由等离子体电弧炉产生的可燃气体并从中除去夹带的铅污染物。 二次燃料气体（例如液化石油气，天然气等）的供应可以任选地作为补充燃料与由等离子体电弧炉产生的可燃气体一起供应到内燃机驱动的发电机。 各种操作可以安装用于移动性（例如，在卡车床，轨道车辆等上），以允许运输到需要补救的垃圾填埋场。