THIN FILMS COVALENTLY BONDED TO CELLULOSE ESTER MEMBRANES AND METHODS OF MAKING THE SAME
    1.
    发明申请
    THIN FILMS COVALENTLY BONDED TO CELLULOSE ESTER MEMBRANES AND METHODS OF MAKING THE SAME 审中-公开
    共价结合纤维素酯膜的薄膜及其制备方法

    公开(公告)号:WO2018049341A1

    公开(公告)日:2018-03-15

    申请号:PCT/US2017/050987

    申请日:2017-09-11

    IPC分类号: B01D71/56 B01D67/00

    摘要: Embodiments disclosed herein are directed to membranes for filtration, methods of manufacturing the same, and membrane modules incorporating the same. In an embodiment, a membrane is disclosed. The membrane includes a porous cellulose layer, a polyamide thin film layer bonded to the porous cellulose layer, and a fabric support layer that supports the porous cellulose layer and the polyamide thin film layer. The porous cellulose layer has a pore size of about 30 nm to about 500 nm at an exposed surface of the porous cellulose layer.

    摘要翻译: 本文公开的实施方式涉及用于过滤的膜,其制造方法以及包含其的膜组件。 在一个实施例中,公开了一种膜。 膜包括多孔纤维素层,与多孔纤维素层结合的聚酰胺薄膜层和支撑多孔纤维素层和聚酰胺薄膜层的织物支撑层。 多孔纤维素层在多孔纤维素层的暴露表面处具有约30nm至约500nm的孔径。

    METHODS AND SYSTEMS FOR CONCENTRATING DIGESTATE FROM BIOMASS

    公开(公告)号:WO2018094082A2

    公开(公告)日:2018-05-24

    申请号:PCT/US2017/062066

    申请日:2017-11-16

    摘要: Embodiments disclosed herein are directed to methods and systems of concentrating effluent, removing nitrogen from an effluent, and producing fertilizer from an effluent. In an embodiment, the effluent is a digestate, such as from a biomass digester. In an embodiment, the digestate is concentrated and nitrogen is removed by performing forward osmosis using a draw solution and the digestate as a feed solution. The draw solution is subjected to reverse osmosis to produce an ammonium salt fertilizer. Phosphorus in the effluent may be precipitated as a struvite fertilizer.

    METHODS AND SYSTEMS FOR TREATING WASTEWATER VIA FORWARD OSMOSIS
    4.
    发明申请
    METHODS AND SYSTEMS FOR TREATING WASTEWATER VIA FORWARD OSMOSIS 审中-公开
    用于通过前向渗透来处理废水的方法和系统

    公开(公告)号:WO2017079131A1

    公开(公告)日:2017-05-11

    申请号:PCT/US2016/059861

    申请日:2016-11-01

    摘要: Embodiments disclosed herein are directed to methods and systems for treating wastewater via forward osmosis. By way of example, the methods and systems disclosed herein may be used to filter one or more precipitated salts and/or other particles from wastewater generated by power plants such as flue gas wastewater, oil and gas wastewater, and other industrial processes. For example, the methods and systems disclosed herein may be used to filter one or more precipitated salts from a wastewater feed concentrate formed during the forward osmosis process that is recirculated through at least one membrane module to continue the forward osmosis process. Filtering the one or more precipitated salts from the wastewater feed concentrate helps limit clogging of open channel feed spacer(s) of the at least one membrane module.

    摘要翻译: 这里公开的实施方案涉及通过正向渗透处理废水的方法和系统。 举例来说,本文公开的方法和系统可以用于过滤由发电厂产生的废水中的一种或多种沉淀盐和/或其他颗粒,例如烟道废气,油和气体废水以及其他工业过程。 例如,本文公开的方法和系统可用于过滤在正向渗透过程期间形成的废水原料浓缩物中的一种或多种沉淀盐,其通过至少一个膜组件再循环以继续正向渗透过程。 从废水进料浓缩物中过滤一种或多种沉淀盐有助于限制至少一个膜组件的开放通道进料间隔物的堵塞。