首页> 外国专利> The process of washing membrane module includes chemical diffusion stage, water injection of chemical substances, in which a running time is controlled by the concentration of chemical substances propagating to the filter edge and the completion of a process. (b) Equipment for the production of fresh water.

The process of washing membrane module includes chemical diffusion stage, water injection of chemical substances, in which a running time is controlled by the concentration of chemical substances propagating to the filter edge and the completion of a process. (b) Equipment for the production of fresh water.

机译：清洗膜组件的过程包括化学扩散阶段，化学物质的注水，其中运行时间由传播到过滤器边缘的化学物质的浓度和过程的完成来控制。（b）生产淡水的设备。

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摘要

In a method for cleaning a membrane module including at least one of a microfiltration membrane and an ultrafiltration membrane through which raw water is membrane-filtered to obtain membrane filtrate, for effectively cleaning a membrane module with reducing a drop in water recovery ratio and the cost of chemicals by preventing a chemical from leaking out to and remaining on the filtrated side of the membrane module after a cleaning step, a chemical diffusion step in which chemical-containing water is fed to a feed side of the membrane module and diffused from the feed side of the membrane module to a filtrated side of the membrane module is performed, and subsequently a backwashing step in which the membrane module is backwashed by allowing the membrane filtrate to flow from the filtrated side to the feed side of the membrane module is performed, in which, in the chemical diffusion step, an execution time of the chemical diffusion step is controlled based on a concentration of the chemical diffused to the filtrated side of the membrane module.

机译：在清洁包括微滤膜和超滤膜中的至少一个的膜组件的方法中，通过该膜对原水进行膜过滤以获得膜滤液，从而有效地清洁膜组件，同时降低了水回收率的下降和成本。通过防止化学物质在清洁步骤后泄漏到膜组件的滤出侧并残留在膜组件的滤出侧上而形成化学药品，化学扩散步骤是将含化学物质的水送入膜组件的进料侧并从进料中扩散进行膜组件的一面至膜组件的滤液侧，然后进行反洗步骤，在该反洗步骤中，通过使膜滤液从膜组件的滤液侧流向进料侧而对膜组件进行反洗。其中，在化学扩散步骤中，基于化学式的浓度来控制化学扩散步骤的执行时间微生物扩散到膜组件的过滤侧。

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公开/公告号CL2013003081A1

专利类型
公开/公告日2014-02-28

原文格式PDF
申请/专利权人 TORAY INDUSTRIES INC.;
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申请/专利号CL20130003081
发明设计人 MAEDA TOMOHIRO;TANIGUCHI MASAHIDE;
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申请日2013-10-24
分类号B01D61/20;B01D61/58;B01D65/02;B01D65/06;C02F1/44;
国家 CL
入库时间 2022-08-21 15:58:30

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