Method of processing peat for use in contaminated water treatment
    21.
    发明授权
    Method of processing peat for use in contaminated water treatment 失效
    污水处理用泥炭处理方法

    公开(公告)号:US6042743A

    公开(公告)日:2000-03-28

    申请号:US128229

    申请日:1998-08-03

    Abstract: A method of processing peat for use in treating a contaminated aqueous solution, especially storm water runoff entering a sewer system. The method includes mixing raw peat with heated sulfuric acid to produce a slurry. The slurry is dried and then mixed with a binder medium to produce an aggregate material. The aggregate material is extruded to form a plurality of pellets. The plurality of pellets are then baked in an oven at a temperature in the range of approximately 900-1000 degree F. Peat processed in accordance with the present invention serves as both an ion exchange material as well as an organic retention material. A filter canister for maintaining pelletized peat is also disclosed.

    Abstract translation: 一种处理泥土的方法,用于处理污染的水溶液,特别是进入下水道系统的雨水径流。 该方法包括将原料泥炭与加热的硫酸混合以产生浆料。 将浆料干燥,然后与粘合剂介质混合以产生聚集体材料。 将聚集体材料挤出以形成多个颗粒。 然后将多个丸粒在烘箱中在约900-1000°F的温度下烘烤。根据本发明加工的泥炭既用作离子交换材料又用作有机保留材料。 还公开了一种用于维持造粒泥炭的过滤罐。

    Mobile process for the recovery of spent heat transfer fluids

    公开(公告)号:US5785857A

    公开(公告)日:1998-07-28

    申请号:US740703

    申请日:1996-10-31

    CPC classification number: B01J47/002 B01J39/04

    Abstract: A mobile process to reclaim spent aqueous glycol solutions used as heat transfer fluids and which contains deleterious contaminants, oil/grease, corrosion products, and additives such as buffers and corrosion inhibitors. Particulate contaminates and oil/grease are removed by passing the solution through an ultrafiltration membrane. The dissolved contaminants are removed by passing through a series of ion exchange resin (IER) vessels. The reclaimed glycol solution is reused after replacing the required additives. One embodiment provides for central processing of the filtration and absorption media housed in a mobile enclosure, such as a trailer. The mobile trailer may be used at various collection sites for cleaning and reprocessing spent glycols. After the media are spent, the mobile trailer is returned to a central processing facility for regeneration of the filtration and absorption media. The waste produced by the regeneration is concentrated at a single treatment and disposal facility.

    Composite particulate material and process for preparing same
    24.
    发明授权
    Composite particulate material and process for preparing same 失效
    复合颗粒材料及其制备方法

    公开(公告)号:US5639550A

    公开(公告)日:1997-06-17

    申请号:US493348

    申请日:1995-06-21

    Applicant: Robert Lisenko

    Inventor: Robert Lisenko

    Abstract: A process for preparing a composite particulate material, comprising the steps of providing a particulate primary material having a primary softening temperature; providing a particulate support material having a support softening temperature; providing a particulate binder material having a softening temperature which is less than the primary softening temperature and the support softening temperature; mixing the primary material, the support material and the binder material so as to provide a substantially uniform mixture; and heating the mixture to a temperature greater than or equal to the softening temperature of the binder material and less than the primary softening temperature and the support softening temperature, whereby the binder material binds the primary material to the support material so as to provide a composite particulate material.

    Abstract translation: 一种制备复合颗粒材料的方法,包括以下步骤:提供具有初始软化温度的颗粒状初级材料; 提供具有支持软化温度的颗粒状支撑材料; 提供软化温度小于初始软化温度和载体软化温度的颗粒粘合剂材料; 混合初级材料,支撑材料和粘合剂材料以便提供基本均匀的混合物; 并将所述混合物加热至大于或等于所述粘合剂材料的软化温度并小于所述初级软化温度和所述载体软化温度的温度,由此所述粘合剂材料将所述主要材料与所述载体材料结合,以提供复合材料 颗粒材料。

    Adsorption and ion exchange zeolite gel media to improve the quality and
carbonation of water
    25.
    发明授权
    Adsorption and ion exchange zeolite gel media to improve the quality and carbonation of water 失效
    吸附和离子交换沸石凝胶介质,提高水质和碳酸化

    公开(公告)号:US5612522A

    公开(公告)日:1997-03-18

    申请号:US478863

    申请日:1995-06-07

    Applicant: Ehud Levy

    Inventor: Ehud Levy

    Abstract: A potassium aluminosilicate is used as a filtration media for filtering water to remove dissolved oxygen, hardness and other dissolved gases and impurities from the water, such as ammonia, hydrogen, hydrogen sulfide and sodium sulfite. The particular potassium aluminosilicate is a mesoporous amorphous material formed under ultraviolet light or sunlight to produce pore sizes of 60 .ANG. to 250 .ANG. at ambient temperatures (20.degree. C.-35.degree. C.) and in a low relative humidity (5%-20%). Sodium may be displaced in the zeolite media by potassium so that advantageous removal of impurities in the water occurs without introducing sodium into the water. The potassium aluminosilicate of the present invention may be used as a second stage filter to a first stage filter composed of strong base anion media charge with potassium carbonate or bicarbonate.

    Abstract translation: 使用硅铝酸钾作为过滤介质以过滤水以从水中除去溶解氧,硬度和其它溶解的气体和杂质,例如氨,氢气,硫化氢和亚硫酸钠。 特定的硅铝酸钾是在紫外光或阳光下形成的介孔无定形材料,以在环境温度(20℃-35℃)和低相对湿度(5%-20℃)下生成孔径为60安培至250安培的孔径 %)。 钠可以在沸石介质中被钾置换,从而有利地除去水中的杂质而不将钠引入水中。 本发明的硅铝酸钾可用作第二级过滤器,由第一级过滤器组成,该过滤器由强碱性阴离子介质与碳酸钾或碳酸氢盐组成。

    Modified anion exchange process
    26.
    发明授权
    Modified anion exchange process 失效
    改性阴离子交换过程

    公开(公告)号:US5472616A

    公开(公告)日:1995-12-05

    申请号:US143489

    申请日:1993-10-27

    CPC classification number: B01J41/046 B01J47/006

    Abstract: The invention is for a process of removing anions from an organic solution, especially one having base labile components. The process comprises modifying an anion exchange resin by treatment with a solution of a source of anions less basic than the hydroxyl anion and contacting said modified ion exchange resin with an organic solution containing anions. The process is especially useful for treating photoresist compositions.

    Abstract translation: 本发明涉及从有机溶液中除去阴离子的方法,特别是具有碱不稳定组分的阴离子。 该方法包括通过用比羟基阴离子碱性低的阴离子溶液处理并使所述改性离子交换树脂与含有阴离子的有机溶液接触来改性阴离子交换树脂。 该方法对于处理光致抗蚀剂组合物特别有用。

    Process for recovering silver from photographic chemical effluent
    28.
    发明授权
    Process for recovering silver from photographic chemical effluent 失效
    从摄影化学废液中回收银的工艺

    公开(公告)号:US5294652A

    公开(公告)日:1994-03-15

    申请号:US19287

    申请日:1993-02-18

    Inventor: Norman B. Rainer

    CPC classification number: B01J47/007 B01J41/085 B01J45/00 B01J47/006

    Abstract: A process for absorbing silver from photographic hypo solutions involves passing the hypo solution through a bed consisting of a multitude of a sponge product confined within a vessel. The sponge product is derived from an open-celled cellulosic sponge into which there has been incorporated 30% to 80% by weight of a polymer produced by the thermal interaction of polyethyleneimine (PEI) with a polycarboxylic acid. The polymer further contains an activating multivalent cation and between 90% and 300% water. Silver is eluted from the sponge product employing aqueous solutions of a complexing agent such as an ammonium compound or a cyanide compound. Following a water wash, the bed of sponge product is ready for its next cycle of silver absorption.

    Abstract translation: 从照相底层溶液中吸收银的方法包括使次溶液通过由限制在容器内的大量海绵产品组成的床。 海绵产品来源于开孔的纤维素海绵,其中掺入30%至80%重量的通过聚乙烯亚胺(PEI)与多元羧酸的热相互作用产生的聚合物。 聚合物还含有活化多价阳离子和90%至300%的水。 使用络合剂如铵化合物或氰化物化合物的水溶液,从海绵产品中洗脱银。 水洗后,海绵产品床准备下一次银吸收循环。

    Magnetically stabilized fluidized particles in liquid media
    29.
    发明授权
    Magnetically stabilized fluidized particles in liquid media 失效
    液体介质中的磁稳定流化颗粒

    公开(公告)号:US5230805A

    公开(公告)日:1993-07-27

    申请号:US399639

    申请日:1989-08-28

    CPC classification number: B01J41/046 B01J47/005 B01J47/007

    Abstract: A method for the preparation of an ion exchange sorbent containing at least one anion exchange resin, a ferromagnetic substance, and a water permeable organic polymer binder, as well as a process for the use of said sorbent to separate removable anions from feedstreams containing said anion.

    Abstract translation: 一种用于制备含有至少一种阴离子交换树脂,铁磁性物质和水可渗透有机聚合物粘合剂的离子交换吸附剂的方法,以及使用所述吸附剂将可除去阴离子与含有所述阴离子的进料流分离的方法 。

    Removal of contaminants and recovery of metals from waste solutions
    30.
    发明授权
    Removal of contaminants and recovery of metals from waste solutions 失效
    从废液中去除污染物和回收金属

    公开(公告)号:US5066371A

    公开(公告)日:1991-11-19

    申请号:US316201

    申请日:1989-02-24

    Abstract: A method for removal of at least one contaminant from a liquid is described, wherein a first step in liquid is introduced into a first of a plurality of liquid treatment containers and brought into contact in a liquid-medium suspension with a first quantity of a solid contaminant recovery medium for removing the contaminant for a period of time sufficient to achieve a desired efficiency of recovery of the contaminant. The liquid is then cycled from the first liquid treatment container sequentially through each of the plurality of liquid treatment containers to a final liquid treatment container while contacting the liquid in each of the liquid treatment containers with additional quantities of the medium in liquid-medium suspension for periods of time sufficient to achieve the desired efficiency of recovery in each of the liquid treatment containers. At least a portion of the medium is cycled from the final liquid treatment container through the plurality of liquid treatment containers to the first liquid treatment container in a direction countercurrent to flow of the liquid so as to maintain essentially a constant medium concentration in each of the liquid treatment containers, with the medium being substantially separated from liquid prior to cycling from one container to another container. At least a portion of the medium is transferred from the first liquid treatment container into a medium recycling means, in which the medium is treated with a contaminant recovery liquid for regenerating the medium.

    Abstract translation: 描述了从液体中去除至少一种污染物的方法,其中将液体中的第一步骤引入到多个液体处理容器中的第一个中,并在液体介质悬浮液中与第一量的固体 污染物回收介质,用于去除污染物一段足以实现期望的污染物回收效率的时间段。 然后将液体从第一液体处理容器顺序地通过每个液体处理容器循环到最终的液体处理容器,同时使每个液体处理容器中的液体与液体介质悬浮液中的附加量的介质接触 足以在每个液体处理容器中达到期望的回收效率的时间段。 介质的至少一部分从最终的液体处理容器通过多个液体处理容器循环到与液体流动逆流的方向到第一液体处理容器,以便在每个液体处理容器中保持基本上恒定的介质浓度 液体处理容器,在从一个容器循环到另一容器之前,介质基本上与液体分离。 介质的至少一部分从第一液体处理容器转移到介质循环装置中,其中介质用用于再生介质的污染物回收液处理。

Patent Agency Ranking