Spiral-wound membrane contactor and method used for treating ozone water

A contactor and roll-type membrane technology, which is applied in the fields of oxidized water/sewage treatment, chemical instruments and methods, special compound water treatment, etc., can solve the problems of the influence of the film-making process, application limitations, and low packing density of the plate-type membrane contactor. , to achieve the effect of promoting gas-liquid mass transfer, promoting ozone mass transfer, and promoting the development of membrane technology

CN109205765AInactive Publication Date: 2019-01-15RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-01-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a spiral-wound membrane contactor and method used for treating ozone water. The spiral-wound membrane contactor comprises a center tube and a membrane element, wherein two endsof the center tube are an air inlet end and an air outlet end which are not communicated with each other in the tube; the membrane element is a plate type membrane which is formed by overlaying a first hydrophobic membrane, a gas phase insulating screen, a second hydrophobic membrane and a liquid phase insulating screen; the first hydrophobic membrane is wound around the center tube; the two endsof the membrane element are a water inlet end and a water outlet end; the first hydrophobic membrane, the gas phase insulating screen and the second hydrophobic membrane are packaged through a packaging line to form a gas phase runner; after winding, the second hydrophobic membrane, the liquid phase insulating screen and the first hydrophobic membrane are wound to form a liquid phase runner whichis led from the water inlet end on one side of the membrane element to the water outlet end on the other side of the membrane element along the axial direction of the center tube. By adopting the spiral-wound membrane contactor, the plate type hydrophobic membrane is wound and fills a membrane shell, so that the filling density is improved, and the contact mass transfer efficiency of an ozone membrane is improved.
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Description

technical field

[0001] The invention belongs to the technical field of water treatment, specifically relates to membrane contact mass transfer technology and ozone water treatment technology, in particular to a roll-type membrane contactor and method for ozone water treatment. Background technique

[0002] The shortage of water resources in our country is serious, the distribution is uneven, and the problem of water pollution is serious. Water treatment technology plays an important role in solving the problem of water pollution. Among these technologies, ozone water treatment technology has obvious advantages in many aspects. Ozone has good oxidation, disinfection, decolorization and other abilities, and can be used as a disinfectant and oxidant in drinking water treatment; in wastewater treatment, it can be applied to the treatment of refractory wastewater such as industrial wastewater. However, the application of ozone water treatment technology is restricted by two fact...

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0030] The invention discloses a roll-type membrane contactor and a method for ozone water treatment. A flexible plate-type membrane is rolled and packed in a membrane contactor shell to increase the filling density of membrane elements and promote the contact mass transfer efficiency of an ozone membrane.

[0031] Specifically, as an exemplary embodiment, the present invention provides a roll-type membrane contactor for ozone water treatment, such as figure 1 and 3 As shown, it is a cylindrical structure, mainly including a central tube 1 and a membrane element 3, wherein: the two ends of the central tube 1 are respectively an air inlet end and an air outlet end, and the air inlet end and the air outlet end are not conne...