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    Process for cleaning wash water
    41.
    发明授权
    Process for cleaning wash water 失效
    冲洗水清洗工艺

    公开(公告)号：US07108792B2

    公开(公告)日：2006-09-19

    申请号：US11193265

    申请日：2005-07-30

    申请人： Paul Wegner

    发明人： Paul Wegner

    IPC分类号： C02F1/62 ,  C02F101/30

    CPC分类号： C02F1/5245 ,  C02F1/66 ,  C02F2103/002 ,  C11D9/02 ,  C11D9/14 ,  Y10S210/906 ,  Y10S210/912

    摘要： Agents are used as cleaning agents and also as agents to purify the water in water treatment plants. The agents are a mixture of phosphates and fatty acid salts. Precipitation agents are used such as, polyvalent metals. The pH is adjusted. Flocking agents can be used to increase the rate of separation. The purified water is removed after precipitation.

    摘要翻译： 试剂用作清洁剂，也用作净化水处理厂中的水的试剂。 这些试剂是磷酸盐和脂肪酸盐的混合物。 使用沉淀剂，例如多价金属。 调节pH值。 植绒剂可用于提高分离速率。 沉淀后除去净化水。

    Method for removing metals from acid mine drainage
    42.
    发明授权
    Method for removing metals from acid mine drainage 失效
    从酸性矿井排水中去除金属的方法

    公开(公告)号：US07033507B2

    公开(公告)日：2006-04-25

    申请号：US10294665

    申请日：2002-11-15

    申请人： J. Ming Zhuang

    发明人： J. Ming Zhuang

    IPC分类号： C02F1/62

    CPC分类号： C02F1/52 ,  C02F1/5236 ,  C02F1/5263 ,  C02F1/66 ,  C02F1/74 ,  C02F2101/203 ,  C02F2101/206 ,  C02F2103/10 ,  Y10S210/912

    摘要： A method for removing metal contaminants from acidic mine wastewater using lignin derivatives, such as lignosulfonates and kraft lignin, an alkali coagulant, such as a lime compound, and an alkaline composition for increasing the pH. The lignin derivatives are dispersed in the wastewater and the coagulant is added, increasing the pH to about 4.5–8.5 and causing the formation of a floc. The alkaline composition is then added to bring the pH to about 9 to 10, causing the further formation of a floc. Optionally, air oxidation is carried out, reducing the pH to about 8.1–8.6. Optionally, a ferric or ferrous salt may also be added. The flocs comprise metal-lignin colloids, metal hydroxides and metal salts. The flocs coagulate to form a sludge. Optionally, fly ash or diatomaceous earth may be added to increase the density and stability of the sludge. The sludge that is formed contains the metals and is separated from the treated water by filtration.

    摘要翻译： 使用木质素磺酸盐和硫酸盐木质素等木质素衍生物，碱性凝结剂如石灰化合物和用于提高pH的碱性组合物从酸性矿废水中去除金属污染物的方法。 将木质素衍生物分散在废水中并加入凝结剂，将pH增加至约4.5-8.5并引起絮凝物的形成。 然后加入碱性组合物以使pH达到约9至10，导致进一步形成絮凝物。 任选地，进行空气氧化，将pH降低至约8.1-8.6。 任选地，也可加入三价铁或亚铁盐。 絮凝物包括金属 - 木质素胶体，金属氢氧化物和金属盐。 絮凝物凝结形成污泥。 任选地，可以加入飞灰或硅藻土以增加污泥的密度和稳定性。 形成的污泥含有金属，并通过过滤与经处理的水分离。

    In situ immobilization of metals within density variant bodies of water
    43.
    发明授权
    In situ immobilization of metals within density variant bodies of water 有权
    在水的密度变体体内原位固定金属

    公开(公告)号：US07011756B2

    公开(公告)日：2006-03-14

    申请号：US10398703

    申请日：2001-10-03

    申请人： Joseph G. Harrington

    发明人： Joseph G. Harrington

    IPC分类号： C02F1/62 ,  C02F3/28

    CPC分类号： B09C1/10 ,  B09C1/002 ,  C02F1/5236 ,  C02F1/66 ,  C02F3/345 ,  C02F3/348 ,  C02F2101/103 ,  C02F2101/20 ,  C02F2103/007 ,  C02F2209/01 ,  C02F2305/06 ,  Y02E50/343 ,  Y10S210/912 ,  Y10S210/913 ,  Y10S210/914

    摘要： A method for treating (in situ) large bodies of water contaminated with heavy metals and having varying density stratas to immobilize the contaminant metals is disclosed. The method, or process for (in situ) immobilization of metals is focused on treating large bodies of water having metals therein that are also adjacent a border of soil or earthen materials in an attempt to immobilize the metals from penetrating through the soil. The method is also able to treat the soil water boundary within the pit lake to provide additional immobilization. The pit lakes can include open pit lakes, subterranean mine lakes, flowing streams and the like. The method is also able to treat an abandoned mine prior to the filling of the mine with water. Initially, the density mean of the body of water is determined, which is densest typical at regions at or approaching 4 degrees C. The process includes introducing a treatment substance that has a density greater than that of the density means into the body of water, providing at least one microbe proximate or in the body of water, producing microbial sulfides arising from the initial microbe placement, causing microbial sulfides to react (in situ) with metal ions or metal containing compounds located within the body of water, reducing the solubility of the metal ions by forming metal sulfides, and inhibiting the migration rate of the metal ions or other metal containing compounds within or from the soils or earthen materials as they settle out of the water.

    摘要翻译： 公开了一种用于处理（原地）用重金属污染的大型水体并具有变化的密度层以固定污染金属的方法。 用于（原位）金属固定的方法或方法集中在处理其中还具有金属的大量水，其也在土壤或土壤材料的边界附近，以试图使金属不渗透通过土壤。 该方法还能够处理坑湖内的土壤水界面以提供额外的固定。 坑湖可以包括露天湖，地下矿湖，流动溪等。 该方法还能够在用水填充矿井之前对待弃弃的矿井进行处理。 最初，确定水体的密度平均值，其在或接近4摄氏度的区域是典型的。该方法包括将密度大于密度平均值的处理物质引入水体中， 提供靠近或在体内的至少一个微生物，产生由初始微生物放置产生的微生物硫化物，使微生物硫化物与位于水体内的金属离子或含金属化合物（原位）反应，降低溶解度 通过形成金属硫化物的金属离子，并且当它们沉淀在水中时，抑制金属离子或其它含金属化合物在土壤或土壤材料内或从土壤或土壤材料中迁移的速率。

    Method and apparatus for treating selenium-containing waste water
    50.
    发明授权
    Method and apparatus for treating selenium-containing waste water 失效
    含硒废水处理方法及装置

    公开(公告)号：US6033572A

    公开(公告)日：2000-03-07

    申请号：US142906

    申请日：1999-01-15

    申请人： Rie Yano ,  Hideo Nishizawa

    发明人： Rie Yano ,  Hideo Nishizawa

    IPC分类号： C02F1/58 ,  C02F1/52 ,  C02F3/28 ,  C02F9/00 ,  C02F1/62

    CPC分类号： C02F9/00 ,  C02F1/5236 ,  C02F1/58 ,  C02F1/705 ,  C02F3/28 ,  C02F2101/106 ,  Y10S210/912

    摘要： Selenium-containing wastewater is sequentially treated through use of biological treatment means (6), chemical treatment means (12), and filtration means (14). In the biological treatment means (6), raw waste water (16) is subjected to anaerobic biological treatment so as to reduce selenate ions and/or selenite ions (soluble selenium) present in the raw waste water (16) to simple selenium, which is insoluble, to thereby remove the selenate ions and/or the selenite ions in the form of insoluble simple selenium. In the chemical treatment means (12), for example, a metal salt that reacts with soluble selenium to form an insoluble selenium compound is added to water treated by the biological treatment means (6), to thereby remove residual soluble selenium in the form of the insoluble selenium compound. In the filtration means (14), an insoluble substance remaining in water treated by the chemical treatment means (12) is removed through filtration. Thus, soluble selenium can be removed from the selenium-containing wastewater to a great extent without using a large amount of chemicals and without generating a large amount of sludge. Accordingly, a wastewater regulation limit of not greater than 0.1 mg Se/L can be cleared, and running cost and waste treatment cost can be reduced.

    摘要翻译： PCT No.PCT / JP97 / 00876 Sec。 371日期1999年1月15日 102（e）1999年1月15日PCT 1997年3月18日PCT公布。 公开号WO97 / 34837 日期1997年9月25日使用生物处理装置（6），化学处理装置（12）和过滤装置（14）依次处理含硒废水。 在生物处理装置（6）中，对生物废水（16）进行厌氧生物处理，将原废水（16）中存在的硒酸根离子和/或亚硒酸根离子（可溶性硒）还原为简单硒， 是不溶性的，从而以不溶性简单硒的形式除去硒酸根离子和/或亚硒酸根离子。 在化学处理装置（12）中，例如，将与可溶性硒反应形成不溶性硒化合物的金属盐加入到通过生物处理装置（6）处理的水中，从而将残留的可溶性硒以 不溶性硒化合物。 在过滤装置（14）中，通过过滤除去残留在通过化学处理装置（12）处理的水中的不溶性物质。 因此，可以在很大程度上从含硒废水中除去可溶性硒，而不需要大量的化学物质而不产生大量的污泥。 因此，可以清除不大于0.1mg Se / L的污水调节限度，并且可以降低运行成本和废物处理成本。