Method and apparatus for submerged grinding of wastes
    71.
    发明授权
    Method and apparatus for submerged grinding of wastes 失效
    废物淹没研磨的方法和装置

    公开(公告)号:US5791566A

    公开(公告)日:1998-08-11

    申请号:US812130

    申请日:1997-03-05

    CPC classification number: C10L1/326 Y02E50/30

    Abstract: An improved apparatus for submerged grinding of wastes includes a vessel that is filled with an alkaline liquid and which has a mechanism for grinding a feed waste containing organic solids, a feeding mechanism for charging the feed waste into the vessel, a primary screening mechanism for filtering the liquid being discharged from the grinding mechanism and a secondary screening mechanism by which the waste/liquid mixture that has been filtered by the primary classification mechanism is freed of the liquid fraction such that the waste is converted into a slurry. The apparatus further includes a line by which the filtrate from the secondary classification mechanism is returned to the liquid with which the vessel is filled, a mechanism for adding an alkaline aqueous solution and/or particulate matter into the liquid with which the vessel is filled, a mechanism for detecting the pH of the liquid with which the vessel is filled, and a mechanism for adjusting the amount of addition of the alkaline aqueous solution and/or particulate matter into the liquid with the vessel is filled on the basis of the value detected by the pH detecting mechanism in order to ensure that the liquid with which the vessel is filled is maintained in an alkaline condition. Using this apparatus, submerged grinding of wastes can be accomplished over an extended period with the progress of putrefaction being retarded and the emission of malodor being suppressed with the resulting advantage of facilitated liquid maintenance.

    Abstract translation: 一种废弃物浸没式研磨的改进装置包括:填充有碱性液体的容器,其具有用于研磨含有有机固体的废料的机构,用于将进料废料装入容器的进料机构,用于过滤的原料筛选机构 从研磨机构排出的液体和二级筛分机构,由初级分级机构过滤的废液/液体混合物不含液体馏分,从而将废物转化为浆料。 该设备还包括一条线,其中来自次级分级机构的滤液返回到容器所填充的液体中,用于将碱性水溶液和/或颗粒物质添加到容器所填充的液体中的机构, 用于检测填充容器的液体的pH的机构,并且基于检测到的值填充用于将容器中的碱性水溶液和/或颗粒物质添加到液体中的量的调节机构 通过pH检测机构,以确保容器填充的液体保持在碱性条件下。 使用这种装置,可以在延长的时间内完成废弃物的浸没研磨,同时抑制腐败的进展并抑制恶臭的排放,从而有利于液体维持。

    Waste decomposition treatment apparatus
    72.
    发明授权
    Waste decomposition treatment apparatus 失效
    废物分解处理装置

    公开(公告)号:US5727879A

    公开(公告)日:1998-03-17

    申请号:US710705

    申请日:1996-09-20

    Applicant: Susumu Ueda

    Inventor: Susumu Ueda

    CPC classification number: B01F13/00

    Abstract: An organic waste decomposition treatment apparatus, wherein agitation vanes of flight members are rotatably attached to looped chains, so as to churn and ferment organic waste accumulated within a reservoir vat when the chain is rotationally driven, then be pushed towards an interior of the agitator by a push-down scraper which is positioned outside of the agitator at a back side of the agitator with respect to the direction of advancement, so as to eliminate contact resistance between the agitator and the organic waste at the back side of the agitator. It is thereby possible to make the agitator smaller and less expensive, and the decomposition treatment efficiency of organic waste is able to be increased.

    Abstract translation: 一种有机废物分解处理装置,其中,飞行构件的搅拌叶片可旋转地附接到环形链条上,以便当链条被旋转驱动时搅动和发酵积聚在储罐槽内的有机废物,然后通过 相对于前进方向位于搅拌器背面的搅拌器外侧的下推刮板,以消除搅拌器与搅拌器后侧的有机废料之间的接触阻力。 由此,能够使搅拌器变得越来越便宜,能够提高有机废弃物的分解处理效率。

    Solvent extraction process using water absorbing solvent at preselected
temperature
    73.
    发明授权
    Solvent extraction process using water absorbing solvent at preselected temperature 失效
    在预选温度下使用吸水溶剂的溶剂萃取方法

    公开(公告)号:US5662802A

    公开(公告)日:1997-09-02

    申请号:US272886

    申请日:1994-07-07

    CPC classification number: C02F11/002 B09C1/02

    Abstract: A method for enhancing solvent extraction of organic wastes from contaminated waste mixtures. A contaminated waste mixture is contacted with a solvent with high driving force for solvation of water, and most preferably with a solvent which is both anhydrous and which has an appreciable affinity for solvation of water. While the solvent is in contact with the contaminated waste mixture, a portion of the organic waste is dissolved in the solvent. Then, the solvated organic waste and residual solvent is removed from the contaminated waste mixture. Solvent is recovered, preferably by distillation, and is then dehydrated, prior to repeating the cycle. The technique substantially improves the degree of removal of certain organic wastes from contaminated waste mixtures, and has been demonstrated to be particularly useful for removal of pesticides from organic waste mixtures.

    Abstract translation: 从污染废物混合物中提高有机废物溶剂萃取的方法。 污染的废物混合物与具有高驱动力的溶剂接触以溶解水,最优选与无水的对溶剂化水具有明显亲和性的溶剂接触。 当溶剂与污染的废物混合物接触时,一部分有机废物溶解在溶剂中。 然后,从污染的废物混合物中除去溶剂化的有机废物和残留的溶剂。 优选通过蒸馏回收溶剂,然后在重复循环之前脱水。 该技术大大提高了某些有机废物从受污染的废物混合物中的去除程度,并已被证明对于从有机废物混合物中除去农药特别有用。

    Fixation and stabilization of metals in contaminated materials
    76.
    发明授权
    Fixation and stabilization of metals in contaminated materials 失效
    污染材料中金属的固定和稳定

    公开(公告)号:US5569155A

    公开(公告)日:1996-10-29

    申请号:US440565

    申请日:1995-05-12

    Abstract: The present invention discloses a method of treating lead bearing process materials and lead toxic hazardous wastes. The invention relates to treatment methods employed to chemically convert leachable lead in lead bearing solid and liquid waste materials to a non-leachable form by mixing the material with lime, gypsum and/or phosphoric acid. The solid and liquid waste materials include contaminated sludges, slurries, soils, wastewaters, spent carbon, sand, wire chips, plastic fluff, cracked battery casings, bird and buck shots and tetraethyl lead contaminated organic peat and muck. The present invention discloses a process comprising a single step mixing of one or more treatment additives, and a process comprising a two step mixing wherein the sequence of performing the steps may be reversible. The present invention provides a new way of treating a universe of lead contaminated materials at any pH.

    Abstract translation: 本发明公开了一种处理含铅工艺材料和铅有毒危险废物的方法。 本发明涉及用于通过将材料与石灰,石膏和/或磷酸混合来将含铅固体和液体废料中的可浸出铅化学转化为不可浸出形式的处理方法。 固体和液体废物包括污染的污泥,泥浆,土壤,废水,废碳,砂,线屑,塑料绒毛,破裂的电池外壳,鸟和屁股和四乙基铅污染的有机泥炭和泥渣。 本发明公开了一种包括一个或多个处理添加剂的单步混合的方法和包括两步混合的方法,其中执行步骤的顺序可以是可逆的。 本发明提供了在任何pH下处理铅污染物质的全新方法。

    Process for encapsulating a waste material
    77.
    发明授权
    Process for encapsulating a waste material 失效
    封装废料的工艺

    公开(公告)号:US5562590A

    公开(公告)日:1996-10-08

    申请号:US387780

    申请日:1995-04-05

    Inventor: Stanley G. Caza

    Abstract: Sludges and slurries, e.g., oil, grease or paint based, are encapsulated into fly ash or similar particulate material by adding solvents to effect the encapsulation and absorption of the sludge. Subsequently, the particulate material is heated to remove the solvent, leaving a dry powder which may then be used as a filler for various applications, including production of breeze blocks.

    Abstract translation: PCT No.PCT / GB93 / 01757 Sec。 371日期1995年04月5日 102(e)日期1995年4月5日PCT提交1993年8月18日PCT公布。 出版物WO94 / 04290 日期1994年3月3日通过添加溶剂以将污泥的包封和吸收作用,将油和油脂或油漆等油和油脂或油漆包被在粉煤灰或类似的颗粒材料中。 随后,将颗粒材料加热以除去溶剂,留下干燥粉末,然后可将其用作各种应用的填料,包括生产微风块。

    Method for the re-treatment of residue generated from the removal of
fluorine dissolved in waste water
    78.
    发明授权
    Method for the re-treatment of residue generated from the removal of fluorine dissolved in waste water 失效
    重新处理从去除溶解在废水中的氟产生的残留物的方法

    公开(公告)号:US5534160A

    公开(公告)日:1996-07-09

    申请号:US229657

    申请日:1994-04-19

    CPC classification number: C01F17/0043 C02F1/281 C02F1/583 Y10S210/915

    Abstract: A method for the re-treatment of residue generated in the course of removing fluorine from waste water.The method comprises the step of: drying the residues consisting of rare earth fluorides, which are generated in the course of treating the waste water with a rare earth compound to remove fluorine ions from the waste water; mingling the rare earth fluorides with a sodium hydroxide solid; heat treating the rare earth fluorides at temperatures ranging from approximately 320.degree. to approximately 450 .degree. C. for times ranging from approximately 0.5 to approximately 5 hours; and applying wash and dry to the heat-treated resultant, in due order.The invention pertains to the reuse of rare earth elements used in the treatment of fluorine. Products obtained by carrying out the method contain rare earth hydroxides, which are useful as materials for glass abrasive or for treating fluorine, catalysts, and other materials for the fields of using a variety of rare earth.

    Abstract translation: 一种在从废水中除去氟的过程中产生的残留物的再处理方法。 该方法包括以下步骤:在稀土化合物处理过程中产生的稀土氟化物残留物,从废水中除去氟离子; 用氢氧化钠固体混合稀土氟化物; 在约320℃至约450℃的温度范围内热处理稀土氟化物,时间范围为约0.5至约5小时; 并以适当的顺序对经热处理的结果进行洗涤和干燥。 本发明涉及用于处理氟的稀土元素的再利用。 通过该方法获得的产品含有稀土氢氧化物,其可用作玻璃磨料的材料或用于处理使用各种稀土领域的氟,催化剂和其它材料。

    Solid-liquid separator for sludge
    79.
    发明授权
    Solid-liquid separator for sludge 失效
    污泥固液分离器

    公开(公告)号:US5462661A

    公开(公告)日:1995-10-31

    申请号:US158617

    申请日:1993-11-29

    Applicant: Motohito Nasu

    Inventor: Motohito Nasu

    CPC classification number: C02F11/14 C02F1/5281 C02F11/18

    Abstract: A solid-liquid separator for sludge which includes a tank with a sludge suction port, an intake/exhaust port and a sludge discharge port. A plurality of agitating blades are mounted on a rotatable shaft within the tank and are capable of being driven in either of two rotational directions. A plurality of injection nozzles are internally mounted on the bottom of the tank in such a manner as to eject a mixture of sludge coagulant and air into sludge contained within the tank. A pump which is capable of producing a vacuum or pressure is connected to the intake/exhaust port so as to produce either a vacuum or a pressure within the tank and the sludge suction port is adapted to be connected to a source of sludge to intake the sludge into the tank. The injection nozzles are connected to a source of sludge coagulant and air. The disclosure also relates to the method of treating the sludge to separate into solid and liquid phases.

    Abstract translation: 一种用于污泥的固液分离器,其包括具有污泥吸入口的罐,进/排气口和污泥排出口。 多个搅拌叶片安装在罐内的可旋转轴上,并且能够沿两个旋转方向中的任一个驱动。 多个注射喷嘴内部安装在罐的底部,以便将污泥凝结剂和空气的混合物喷射到容纳在容器内的污泥中。 能够产生真空或压力的泵连接到进/出口,以便产生罐内的真空或压力,并且污泥吸入口适于连接到污泥源,以进入 污泥进入坦克。 注射喷嘴连接到污泥凝结剂和空气源。 本公开还涉及处理污泥以分离成固相和液相的方法。

    Semi-continuous bacterial leaching process
    80.
    发明授权
    Semi-continuous bacterial leaching process 失效
    半连续细菌浸出过程

    公开(公告)号:US5454948A

    公开(公告)日:1995-10-03

    申请号:US109988

    申请日:1993-08-23

    CPC classification number: C02F3/345 C22B3/18 Y02P10/234 Y10S210/912

    Abstract: The present invention relates to a semi-continuous process for removing heavy metals, substantially reducing volatile suspended solids and substantially destroying indicator bacteria from municipal sludges, which comprises: a) adding 1 to 3 g of sulphur per liter to a volume of municipal sludge and allowing the sulphur oxidizing thiobacilli initially present in said sludge to proliferate under aerobic conditions in said sludge being agitated until the pH of said sludge is lowered to about 1.5 to 2.5 which causes heavy metals present in said sludge to be substantially solubilized, the concentration of volatile suspended solids is substantially reduced and the concentration of indicator bacteria to be lowered to a non-toxic level; b) removing about 90% of said low pH sludge and recovering the solubilized heavy metals therefrom; c) adding about 90% of municipal sludge to the remaining low pH sludge of step b), thereby resulting in a sludge mixture having a pH of about 7 to 8; and d) repeating steps a) to c); whereby the thiobacilli are adapted when the time required for lowering the pH of the sludge to 1.5 to 2.5 is about the same in two successive operations.

    Abstract translation: 本发明涉及一种用于去除重金属,基本上减少挥发性悬浮固体并基本上破坏来自市政污泥的指示剂细菌的半连续方法,其包括:a)每升将1至3g硫加入一定量的城市污泥中, 允许最初存在于所述污泥中的硫氧化硫杆菌在需氧条件下在所述污泥中搅拌,直到所述污泥的pH降低至约1.5至2.5,这导致所述污泥中存在的重金属基本上溶解,挥发物的浓度 悬浮固体显着减少,指示剂细菌的浓度降至无毒水平; b)去除约90%的所述低pH污泥并从其中回收溶解的重金属; c)向步骤b)的剩余低pH污泥中加入约90%的市政污泥,从而导致pH为约7至8的污泥混合物; 和d)重复步骤a)至c); 从而当将两个连续的操作中将污泥的pH降低至1.5至2.5所需的时间大致相同时,硫杆菌适应。

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