A kind of forward osmosis drawing liquid flow direction distribution device and drawing method

A distribution device and technology for drawing liquid, which are applied in semi-permeable membrane separation, chemical instruments and methods, osmotic/dialysis water/sewage treatment, etc. The problems of high osmotic pressure difference and unstable osmotic pressure difference can achieve the effect of high compactness, stable recovery and high osmotic pressure difference.

Active Publication Date: 2021-08-27
上海缘脉环境科技有限公司
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  • Abstract
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Problems solved by technology

[0004] 1. When dealing with high-concentration water, it is easy to appear compact pollution layer
[0005] 2. When the concentration of the raw water is constant, the concentration of the drawing solution is likely to increase, and the osmotic pressure difference is unstable
[0006] 3. After many times of recovery, it is easy to affect the osmotic flux of the draw solution and the membrane problem

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  • A kind of forward osmosis drawing liquid flow direction distribution device and drawing method

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Embodiment Construction

[0022] In the following description, numerous specific details are given in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without one or more of these details. In other examples, some technical features known in the art are not described in order to avoid confusion with the present invention.

[0023] In order to thoroughly understand the present invention, detailed steps and detailed structures will be provided in the following description, so as to illustrate the technical solution of the present invention. Preferred embodiments of the present invention are described in detail below, however, the present invention may have other embodiments besides these detailed descriptions.

[0024] The forward osmosis draw solution is recyclable. This type is suitable for inorganic compound draw solution. The draw solution can be recycled repeatedly, but with th...

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Abstract

The invention provides a forward osmosis drawing liquid flow distribution device and a drawing method. The distribution device is equipped with FO membrane elements, and the high-concentration forward osmosis drawing liquid enters from the left end of the FO membrane element. After being treated by the FO membrane element, the FO membrane element The right end of the output of the low-concentration draw liquid; the FO membrane element consists of a center tube assembly and a FO membrane sleeved on the outer wall of the center tube assembly. The center tube assembly includes a left center tube assembly and a right center tube assembly, and a left center tube assembly and a right center The tube assemblies are connected through a Y-shaped shunt tube; both the left center tube assembly and the right center tube assembly are provided with concentric inner and outer tubes, the outer tube is provided with a water collection hole, and the inner tube of the left center tube assembly passes through a Y-shaped The shunt tube is connected with the outer tube of the right central tube assembly, and the right end of the inner tube of the right central tube assembly is connected with the FO membrane on the right side through a pipeline.

Description

technical field [0001] The invention relates to water body purification, in particular to a forward osmosis drawing liquid flow direction distribution device and a drawing method. Background technique [0002] At present, as the country pays more and more attention to environmental pollution, most of the application of forward osmosis draw solution technology is still in the laboratory research stage in the zero-discharge treatment of high-concentration wastewater, and there is still a certain distance from the real industrial application. The lack of high-performance forward osmosis membrane and high osmotic pressure and easy recovery of draw solution are the main obstacles limiting its industrial application. In order to realize zero-discharge treatment of sewage today, domestic research on forward osmosis draw liquid flow distribution technology started relatively late, and there is still a large gap in technical problems. [0003] Conventional forward osmosis draw liqui...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D61/00C02F1/44
Inventor 乐平
Owner 上海缘脉环境科技有限公司
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