Aqueous basic polyaluminum-iron halide solutions
    1.
    发明授权
    Aqueous basic polyaluminum-iron halide solutions 失效
    水性碱性聚铝 - 卤化铁溶液

    公开(公告)号:US4417996A

    公开(公告)日:1983-11-29

    申请号:US418879

    申请日:1982-09-16

    CPC分类号: C02F1/5245 C01G49/009

    摘要: Aqueous basic polyaluminum-iron halide solutions, useful as coagulants in waste water treatment are disclosed. The polyaluminum-iron halide solution is prepared by reacting an aqueous polyaluminum halide solution with one or more members of the group consisting of ferrous halide and ferric halide resulting in a solution containing a concentration of metal ions ranging from about 1.35 to 4.5 mol/liter as a dissolved salt of the formulaAl.sub.1-x Fe.sub.x.sup.III Fe.sub.y.sup.II (OH).sub.3+2y-z Hal.sub.zwherein Hal is chlorine, bromine, iodine or mixtures thereof; (x+y)(1-x) is about 0.2 to 1.5; (3+2y-z)(3+2y) is about 0.24 to 0.67; and z is less than 3+2y wherein x/y is about 0 to 1. Alternatively, the coagulant solution is prepared by reacting an aqueous aluminum halide solution or low basic polyaluminum halide solution with iron. Preferably the halide employed is chloride.

    摘要翻译: 公开了用作废水处理中的絮凝剂的水性碱性聚铝 - 卤化铁溶液。 聚铝 - 卤化铝溶液是通过使聚卤化铝水溶液与卤化亚铁和卤化铁的一种或多种成分反应制得的,得到含有浓度为约1.35-4.5mol /升的金属离子浓度的溶液, 式Al1-xFexIIIFeyII(OH)3 + 2y-zHalz的溶解盐,其中Hal为氯,溴,碘或其混合物; (x + y)(1-x)为约0.2〜1.5; (3 + 2y-z)(3 + 2y)为约0.24〜0.67; 并且z小于3 + 2y,其中x / y为约0至1.或者,通过使卤化铝水溶液或低碱性聚铝卤化物溶液与铁反应制备凝结剂溶液。 所用的卤化物最好是氯化物。

    Automatic revitalization of sulfide processing and treatment solutions
    2.
    发明授权
    Automatic revitalization of sulfide processing and treatment solutions 失效
    自动振兴硫化物加工处理液

    公开(公告)号:US4405462A

    公开(公告)日:1983-09-20

    申请号:US406561

    申请日:1982-08-09

    摘要: A system and process has been devised for measuring and constantly maintaining a desired concentration of soluble sulfides in a processing solution for the purpose of fully maintaining its function. Sulfide regenerating solution is automatically introduced into the processing solution in an amount as constantly determined by concentration variations in the processing solution, to thus provide the processing solution with its most effective sulfide content. A constant take-off flow of processing solution is thoroughly mixed with a sulfide stabilizing solution flow to provide a tempered solution flow that is passed through a flow block having a sulfide measuring electrode and a reference electrode. Variable negative voltage generated on the sulfide electrode is sensed and compared with a substantially constant voltage generated on the reference electrode and is amplified in a controller assembly. The amplified energy is then employed to electrically control the introduction of a sulfide regenerating solution into the processing solution in accordance with a predetermined desired sulfide concentration thereof.

    摘要翻译: 已经设计了一种系统和方法,用于在完全维持其功能的目的下测量和不断地保持处理溶液中所需浓度的可溶性硫化物。 硫化物再生溶液以不断地由处理溶液中的浓度变化确定的量自动引入处理溶液中,从而为处理溶液提供最有效的硫化物含量。 将处理溶液的恒定取出流与硫化物稳定溶液流充分混合,以提供通过具有硫化物测量电极和参考电极的流动块的回火溶液流。 在硫化物电极上产生的可变负电压被检测并与在参考电极上产生的基本上恒定的电压进行比较,并在控制器组件中被放大。 然后使用放大的能量来电化学控制根据其预定的所需硫化物浓度将硫化物再生溶液引入到处理溶液中。

    Galvanic flow system for joint particulate recovery and liquid
purification
    4.
    发明授权
    Galvanic flow system for joint particulate recovery and liquid purification 失效
    用于接头微粒回收和液体净化的电流系统

    公开(公告)号:US4224148A

    公开(公告)日:1980-09-23

    申请号:US840414

    申请日:1977-10-07

    摘要: Solid and/or dissolved contaminants are separated from a polar liquid such as water by providing in the contaminated liquid medium a galvanically charged particulate dispersion of defined size, concentration, density and free surface energy, and then flowing such loaded medium through successive treatment zones of an electrically insulated apparatus at a rate defined by dimensionless parameters such as Reynolds Numbers so as to prevent phase separation. Gaseous oxygen adheres to particle surfaces and oxidation is further promoted by bringing medium to pH 2.0 to 2.5 as with sulfur dioxide gas, plus exposure to action of heavy-metal ions such as ferrous/ferric. After air blowing, medium is neutralized and brought to pH 10-11 with continuous aeration of suspended flocculant, then treated with soda ash and optionally additional particulate (recycled sludge), and the contaminant matter then allowed to precipitate with concurrant galvanic grounding of the medium. The dispersed particulate matter may be inert and deliberately added (e.g. shredded cellulose) or it may be produced in situ by fractionation of component debris as in sewage-refuse; in the latter case the particle itself is subsequently oxidized. In either event, dual end products are potable water and sterile sludge. Dissolved salts such as sodium chloride are simultaneously removed from medium as component of sludge; applicable to remove toxic components from cooling water systems, recover traces of precious metals, etc. from slurry or run-off liquid, brackish water, industrial waste, etc.

    摘要翻译: 通过在污染的液体介质中提供具有规定尺寸,浓度,密度和游离表面能的电流密度的分散体,将固体和/或溶解的污染物与极性液体(例如水)分离,然后使这种负载介质通过连续的处理区 以无量纲参数(例如雷诺数)定义的速率的电绝缘装置,以防止相分离。 气态氧气粘附到颗粒表面,通过将介质与二氧化硫气体一起引入pH 2.0至2.5,加上重金属离子如亚铁/铁的作用,进一步促进氧化。 空气吹入后,将介质中和,并连续通气悬浮的絮凝剂使其达到10-11,然后用苏打灰和任选的附加颗粒(再循环污泥)处理,然后使污染物沉淀,并以介质的均匀电流接地 。 分散的颗粒物质可以是惰性的并故意加入(例如切碎的纤维素),或者它可以通过在污水 - 垃圾中分馏成分碎屑原位产生; 在后一种情况下,颗粒本身随后被氧化。 无论如何,双端产品都是饮用水和无菌污泥。 溶解的盐如氯化钠同时从作为污泥成分的介质中除去; 适用于从冷却水系统中除去有毒成分,从泥浆或流出液,微咸水,工业废物等中回收痕量的贵金属等。

    Water treatment process
    6.
    发明授权
    Water treatment process 失效
    水处理工艺

    公开(公告)号:US4219418A

    公开(公告)日:1980-08-26

    申请号:US917570

    申请日:1978-06-21

    申请人: Jacques Pilon

    发明人: Jacques Pilon

    摘要: The present invention is concerned with a process for the purification of highly polluted water containing paper mill waste products and algae, which comprises: (a) treating said highly polluted water with hydrogen peroxide and alum; (b) allowing flocculation and then sedimentation to take place, while pre-chlorinating the treated water by subjecting it to the action of chlorine during flocculation or after sedimentation, or both; (c) filtrating the resulting water to remove therefrom solid particles still in suspension; and (d) post-chlorinating the filtrated water by treating it with a liquid composition obtained by mixing chlorine, an alkali metal chlorate and a non-toxic mineral acid. The water treatment process according to the invention enables one to obtain a drinking water which is colorless, odorless and from which bad tastes have been eliminated.

    摘要翻译: 本发明涉及高污染含水造纸废物和藻类净化方法,其包括:(a)用过氧化氢和明矾处理所述高度污染的水; (b)允许进行絮凝,然后进行沉淀,同时在处理过的水中通过在絮凝过程中或沉淀后进行氯的作用,或两者兼容; (c)过滤所得水以除去仍处于悬浮状态的固体颗粒; 和(d)通过用通过混合氯,碱金属氯酸盐和无毒无机酸获得的液体组合物处理过滤水进行后氯化。 根据本发明的水处理方法使得能够获得无色,无臭的饮用水,并且从中消除了不良口味。

    Process for clarifying water
    7.
    发明授权
    Process for clarifying water 失效
    澄清水的过程

    公开(公告)号:US4216086A

    公开(公告)日:1980-08-05

    申请号:US801323

    申请日:1977-05-27

    申请人: John L. Lang

    发明人: John L. Lang

    IPC分类号: C01F7/16 C02F1/52 C02B1/20

    CPC分类号: C01F7/164 C02F1/5236

    摘要: The use of fusion-formed compounds of polyvalent cations with aluminate, alumino-borate and -ferrite anions has been found to provide improved clarification methods for settling aqueous suspensions of solids. The use of these materials has been found to be more effective than the use of the corresponding conventional mono-valent cation compounds. A particularly effective form of these clarifying agents is obtained when the preparation thereof is carried out by high temperature methods, which brings about the incipient or actual fusion of the materials. Recycling of the once-used clarifying agents is possible when using these materials, especially when the flocculated solids are incinerated during the ultimate disposal step.

    摘要翻译: 已经发现使用多价阳离子与铝酸盐,铝 - 硼酸盐和 - 铁酸盐阴离子的融合形成的化合物提供了用于沉降固体的水悬浮液的改进的澄清方法。 已经发现使用这些材料比使用相应的常规单价阳离子化合物更有效。 当这些澄清剂的制备通过高温方法进行时,得到这些澄清剂的特别有效形式,这导致材料的初始或实际熔化。 当使用这些材料时,特别是在最终处理步骤中絮凝固体被焚化时,一次性澄清剂的回收是可能的。

    Method for treating a desizing waste stream
    9.
    发明授权
    Method for treating a desizing waste stream 失效
    处理退浆废料流的方法

    公开(公告)号:US4202745A

    公开(公告)日:1980-05-13

    申请号:US922925

    申请日:1978-07-07

    摘要: A dispersed synthetic polymeric organic size is efficiently recovered as a material of low salt content from an aqueous desizing waste stream by combining the stream with a solution of an inoganic salt under high shear mixing conditions to a final salt concentration greater than about four percent, thereby precipitating the dispersed polymeric size. The aqueous phase remaining can be subjected to electrodialysis to produce a concentrated salt brine and an aqueous solution low in salt content.

    摘要翻译: 通过在高剪切混合条件下将流与无机盐的溶液混合至大于约4%的最终盐浓度,将分散的合成聚合物有机尺寸作为低含量材料从水性脱浆废物流中有效地回收,从而 沉淀分散的聚合物尺寸。 可以将剩余的水相进行电渗析以产生浓盐水和盐含量低的水溶液。