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    METHOD FOR CONCENTRATING AQUEOUS CONTAINING SOLUTE INTO HIGH CONCENTRATION BY HYDRAULIC-MEMBRANE PROCESS UNDER NO DIFFERENCE IN OSMOTIC PRESSURE
    2.
    发明申请
    METHOD FOR CONCENTRATING AQUEOUS CONTAINING SOLUTE INTO HIGH CONCENTRATION BY HYDRAULIC-MEMBRANE PROCESS UNDER NO DIFFERENCE IN OSMOTIC PRESSURE 有权
    通过液压膜方法将含水溶液浓缩至高浓度的方法在无压力下无差异

    公开(公告)号：US20150367285A1

    公开(公告)日：2015-12-24

    申请号：US14764975

    申请日：2014-02-04

    申请人： Korea Advanced Institute of Science and Technology

    发明人： Ho Nam Chang ,  Kwonsu Jung ,  Gwon Woo Park ,  Yeu-Chun Kim ,  Charles Seo

    IPC分类号： B01D61/00 ,  C07C31/08 ,  C01D3/04 ,  C07C69/02 ,  C02F1/44 ,  B01D61/02

    CPC分类号： B01D61/002 ,  B01D61/022 ,  B01D61/025 ,  B01D61/06 ,  B01D61/08 ,  B01D61/58 ,  B01D63/10 ,  B01D63/12 ,  B01D2311/2669 ,  B01D2315/14 ,  B01D2317/08 ,  C01D3/04 ,  C02F1/441 ,  C02F1/445 ,  C02F2101/322 ,  C02F2103/08 ,  C07C29/76 ,  C07C31/08 ,  C07C51/47 ,  C07C69/02 ,  C12M47/10 ,  Y02A20/131 ,  C07C53/08 ,  C07C53/122 ,  C07C53/124 ,  C07C63/08

    摘要： The present invention relates to a method of concentrating an aqueous solution at low pressure under a zero osmotic pressure difference condition, and more particularly, to a method of concentrating an aqueous solution containing a solute to be concentrated, at low pressure under a zero osmotic pressure difference condition. The method of the present invention comprises the steps of: (a) discharging water of a solute-containing aqueous solution to be concentrated, from a reverse osmosis separator to the outside, and transferring the concentrated aqueous solution to a zero osmotic pressure difference concentrator; (b) further concentrating the concentrated aqueous solution using the zero osmotic pressure difference concentrator comprising a feed chamber and a draw chamber, which are separated from each other by a reverse osmosis membrane or a forward osmosis membrane; and (c) recovering the solute and water from the aqueous solution further concentrated in the zero osmotic pressure difference concentrator. When the method of concentrating the aqueous solution at low pressure under the zero osmotic pressure difference condition is used, the aqueous solution can be concentrated to the maximum saturation concentration of a solute or a solution concentration of 100% using a reduced amount of energy without having to use an extraction solvent. In addition, there is an advantage in that a separate osmosis draw solution does not need to be used.

    摘要翻译： 本发明涉及一种在零渗压压条件下在低压下浓缩水溶液的方法，更具体地说，涉及将含有待浓缩的溶质的水溶液在低渗压下在零渗透压下浓缩的方法 差异条件。 本发明的方法包括以下步骤：（a）将来自反渗透分离器的待浓缩水溶液的水排出到外部，并将浓缩的水溶液转移至零渗透压差集中器; （b）使用包括通过反渗透膜或正向渗透膜彼此分离的进料室和抽吸室的零渗透压浓缩器进一步浓缩浓缩水溶液; 和（c）从溶液中回收溶质和水，进一步浓缩在零渗透压差浓缩器中。 当使用在零渗透压差条件下在低压下浓缩水溶液的方法时，可以使用减少量的能量将水溶液浓缩至溶质的最大饱和浓度或溶液浓度为100％，而不会 使用提取溶剂。 此外，还有一个优点是不需要使用单独的渗透溶液。