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Energy-saving ultra-high-power concentration membrane assembly, membrane bag thereof, water treatment system and water treatment method

A membrane module and membrane bag technology, which is applied in water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problem of low concentration end point of membrane module wastewater and achieve an increase in total dissolved solids concentration , avoid short flow, reduce the head effect

Active Publication Date: 2020-11-27
JIANGSU KUNYI ENVIRONMENTAL ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem of low concentration end point of membrane module wastewater in the prior art, the present invention provides an energy-saving ultra-high concentration membrane module and its membrane bag, treatment device, treatment system and method

Method used

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  • Energy-saving ultra-high-power concentration membrane assembly, membrane bag thereof, water treatment system and water treatment method
  • Energy-saving ultra-high-power concentration membrane assembly, membrane bag thereof, water treatment system and water treatment method
  • Energy-saving ultra-high-power concentration membrane assembly, membrane bag thereof, water treatment system and water treatment method

Examples

Experimental program
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Embodiment 1

[0038] Such as Figure 1~4 As shown, an energy-saving high-power concentration membrane assembly 100 includes a membrane case 1, a water production pipe 3 and a membrane bag 2, the membrane case 1 is used to accommodate the membrane bag 2 and the water production pipe 3, and the membrane bag 2 The inner space of the membrane shell 1 is divided into the high concentration side located outside it and the water production side located in the inner space thereof, the membrane bag 2 has an open end 26, and the inner space of the membrane bag 2 is provided with a End 26 begins to extend and make the adhesive edge 21 that the inner surface of the membrane bag 2 is pasted, and the adhesive edge 21 divides the water production side into a brine injection area 22 and a mixed solution output area 23 that communicate with each other. The inner chamber of the water production pipe 3 includes a saline channel 31 and a mixed solution channel 32 that are not connected to each other, the membr...

Embodiment 2

[0048] Such as Figure 5 As shown, as another embodiment of the present invention, a water treatment system includes a common reverse osmosis module 200 (taking a traditional STRO module as an example), a circulating brine tank 300 and one of the above-mentioned membrane modules 100, the circulating brine tank 300 through the brine injection pump and the brine injection interface 111, and a pressure sensor 302 is set on the pipeline between the brine injection pump 301 and the brine injection interface 111, and the mixed solution outlet 113 is connected to the brine through the mixed solution pump 201 The raw water inlet of the ordinary reverse osmosis module 200 is connected, the concentrated water outlet of the reverse osmosis module 200 is connected to the circulating brine tank 300, and the raw water interface 5 of the membrane module 100 is connected to the water inlet pipe 51 of the liquid to be treated through the high-pressure pump 101 , the concentrated water interfac...

Embodiment 3

[0051] Such as Figure 6 As shown, as another embodiment of the present invention, in order to achieve a higher concentration factor, one membrane module 100 in the water treatment system of the above embodiment is replaced with six membrane modules 100, the first membrane module 100 The raw water interface 5 is connected to the to-be-treated liquid inlet pipe 51 through the high-pressure pump 101, the raw water interface 5 of the nth membrane module 100 is connected to the concentrated water interface 6 of the n-1th membrane module 100, Wherein n≥2, the concentrated water interface 6 of the last membrane module 100 is connected to the concentrate outlet pipe 61, and the brine injection interface 111 of each membrane module 100 is connected to the brine injection pump 301, each The mixed solution outlets 113 of each of the membrane modules 100 are connected to the raw water inlet of the reverse osmosis module 200 through the mixed solution pump 201 . Connecting multiple membr...

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Abstract

The invention belongs to the field of water treatment, and discloses an energy-saving high-power concentration membrane assembly. The energy-saving high-power concentration membrane assembly comprisesa membrane shell, a water-producing pipe and a membrane bag, the membrane shell is used for accommodating the membrane bag and the water production pipe; the space in the membrane shell is divided into a high-concentration side and a water production side by the membrane bag; the membrane bag has an open end, the internal space of the membrane bag is provided with a bonding edge which extends from the open end and enables the inner surface of the membranebag to be attached, the bonding edge divides the water production side into a saline water injection area and a mixed liquid output area which are communicated with each other; an inner cavity of the water production pipe comprises a saline channel and a mixed liquid channel which are not communicated with each other, the membrane bag iscommunicated with the inner cavity of the water production pipe through the open end, the saline injection area is communicated with the saline channel, the mixed liquid output area is communicated with the mixed liquid channel, and two ends of the membrane shell are respectively provided with a raw water interface and a concentrated water interface communicated with the high-concentration side. Brine is injected into the water production side, reverse osmosis pressure of the high-concentration side and the water production side is reduced, driving pressure of the to-be-treated liquid flowingfrom the high-concentration side of the reverse osmosis membrane to the water production side is reduced, and operation energy consumption is reduced.

Description

technical field [0001] The invention belongs to the field of water treatment, and in particular relates to an energy-saving ultra-high concentration membrane module, its membrane bag, a water treatment system and a method. Background technique [0002] With the increasingly stringent environmental protection policies and the gradual enhancement of people's awareness of environmental protection, in recent years, many industries have required the resource utilization of wastewater, and the near-zero discharge of wastewater has also been put on the agenda. In the process of near-zero discharge and resource utilization of wastewater, reverse osmosis technology has been most widely and effectively applied. At present, in the field of reverse osmosis membrane application, roll membrane (RO) and disc tube membrane module (DTRO) and network tube type open channel membrane module (STRO) occupy the leading market. However, there are still some technical defects and deficiencies in th...

Claims

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Application Information

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IPC IPC(8): B01D63/00B01D61/02C02F1/44
CPCB01D63/00B01D61/025C02F1/441C02F2303/14
Inventor 李方越孙荣谢军英
Owner JIANGSU KUNYI ENVIRONMENTAL ENG CO LTD
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