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    Methods for recovering organic-inorganic element-doped metal oxides from hydrolysable metal compounds associated with contaminated water treatment
    1.
    发明授权
    Methods for recovering organic-inorganic element-doped metal oxides from hydrolysable metal compounds associated with contaminated water treatment 有权
    从与受污染水处理相关的可水解金属化合物中回收有机 - 无机元素掺杂金属氧化物的方法

    公开(公告)号：US08083950B2

    公开(公告)日：2011-12-27

    申请号：US12161293

    申请日：2006-01-18

    申请人： Hokyong Shon ,  Vigneswaran Saravanamuthu ,  Erdei Laszlo ,  Jong Ho Kim ,  Jong Beom Kim ,  Dong Lyun Cho ,  Byung Chul Choi ,  Kun Jung Kim ,  Myung Wan Kim ,  Sung Jung Song ,  Hee Ju Park ,  Jaeweon Cho ,  In-soo Kim ,  Seung-hyun Kim

    发明人： Hokyong Shon ,  Vigneswaran Saravanamuthu ,  Erdei Laszlo ,  Jong Ho Kim ,  Jong Beom Kim ,  Dong Lyun Cho ,  Byung Chul Choi ,  Kun Jung Kim ,  Myung Wan Kim ,  Sung Jung Song ,  Hee Ju Park ,  Jaeweon Cho ,  In-soo Kim ,  Seung-hyun Kim

    IPC分类号： C02F1/52

    CPC分类号： C02F1/5236 ,  C02F1/30 ,  C02F1/32 ,  C02F1/725 ,  C02F9/00 ,  C02F11/18 ,  C02F2103/007 ,  C02F2103/06 ,  C02F2305/10 ,  Y02W10/37

    摘要： The present invention relates to a method for recovering an organic-inorganic element-doped metal oxide from a hydrolysable metal compound, accompanied with contaminated water treatment. The present invention comprises steps of: a) adding a hydrolysable metal compound as a coagulant to a contaminated water to form a separable floc between the hydrolysable metal compound and contaminants present in contaminated water; b) separating the separable floc and the pre-treated water after flocculation treatment; and c) calcinating the separated floc over 500° C. to produce an organic-inorganic element-doped metal oxide. More preferably, the present invention further comprises subjecting the pre-treated water of the step b) to a microwave treatment to cause a photocatalytic degradation of an organic contaminant that remains in the pre-treated water, with the assistance of the remaining hydrolysable metal compound. A novel titanium compound is found as an alternative coagulant instead of iron and aluminum salts which most widely use in water treatment. Ability, capacity and efficiency of flocculation as the proposed titanium coagulant are similar to those of FeCl3 and alum coagulants in terms of removing organic matter. Titania produced by calcination of the separated floc after TiCl4 flocculation is mainly doped with C and P atoms.

    摘要翻译： 本发明涉及一种伴随污染水处理从可水解金属化合物中回收有机 - 无机元素掺杂金属氧化物的方法。 本发明包括以下步骤：a）将可水解的金属化合物作为凝结剂加入到污染的水中以在可水解金属化合物和污染水中存在的污染物之间形成可分离的絮凝物; b）絮凝处理后分离可分离的絮凝物和预处理水; 和c）在500℃下煅烧分离的絮凝物以产生有机 - 无机元素掺杂的金属氧化物。 更优选地，本发明进一步包括使步骤b）的预处理水经受微波处理以在残留在预处理水中的有机污染物的光催化降解下，借助于剩余的可水解金属化合物 。 发现一种新的钛化合物作为替代的凝结剂，而不是最广泛用于水处理的铁和铝盐。 作为提出的钛凝结剂的絮凝能力，能力和效率与去除有机物质方面与FeCl3和明矾凝结剂相似。 在TiCl4絮凝后煅烧分离的絮凝物产生的二氧化钛主要掺杂有C和P原子。