Novel membrane filtration method and device adopting same

A new type of membrane filtration technology, applied in chemical instruments and methods, membranes, membrane technology, etc., can solve the problems of high impurity attachment rate, heavy maintenance workload, and high backwashing frequency of filtration membranes, and achieve strong anti-pollution and regeneration capabilities , The maintenance workload is reduced, and the effect of backwashing frequency is reduced

Inactive Publication Date: 2016-04-06
石勇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, for difficult-to-treat wastewater and wastewater containing high concentrations of acid and alkali, a variety of water treatment technologies and different water treatment equipment are required to be used in combination. In addition to high investment costs, there is also a high impurity adhesion rate of the filter membrane in the ceramic filtration process. , short service life, high frequency of backwashing, heavy maintenance workload, low filtration efficiency and other defects

Method used

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  • Novel membrane filtration method and device adopting same
  • Novel membrane filtration method and device adopting same

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Experimental program
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Effect test

Embodiment 1

[0032] Embodiment 1: a kind of novel membrane filtration method, comprises the steps:

[0033] The first step is coarse filtration, which removes coarse particles and impurities from sewage;

[0034] The second step, fine filtration, removes fine particle impurities from sewage;

[0035] The third step, ceramic filter, adopts a vibrating ceramic filter device, and the filter membrane filters and removes residual fine particle impurities from the sewage under the action of vibration waves.

[0036] Such as Figure 1~2 A kind of novel membrane filtration device of implementing the present invention shown in, comprises casing (1), filter membrane (2), and casing (1) outside is fixedly provided with sewage outlet one (3) that water enters and exits, sewage outlet Two (4), water purification port one (6), and water purification port two (7), the closed cavity surrounded by the shell (1) is divided into a sewage cavity and a clean water cavity by more than one layer of filter memb...

Embodiment 2

[0039] Embodiment 2: Below in conjunction with embodiment 1, the optimization provided by the present invention or / and improvement are further described:

[0040] A novel membrane filtration device implementing the present invention comprises a housing (1) and a filter membrane (2), and the housing (1) is fixedly provided with sewage outlet one (3) and sewage outlet two (4) for water in and out. 1, water purification port one (6), water purification port two (7), the closed cavity surrounded by the shell (1) is divided into a sewage cavity and a water purification cavity by 2 to 5 layers of filter membranes (2) Two parts, the first sewage outlet (3) and the second sewage outlet (4) are respectively connected with the sewage chamber, the first water purification outlet (6) and the second water purification outlet (7) are respectively connected with the water purification chamber, and are equipped with ultrasonic generators An ultrasonic generator replaces the vibrating machine ...

Embodiment 3

[0041] Embodiment 3: below in conjunction with embodiment 1 and 2, the optimization provided by the present invention or / and improvement are further described:

[0042] The filter membrane has more than two layers, and the pore diameter of the filter membrane (5) is 0.1-100um.

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Abstract

The invention provides a novel membrane filtration method and a device adopting the same and belongs to the field of sewage treatment. The method includes the steps of 1 coarse filtration, 2 fine filtration and 3 ceramic filtration, wherein the ceramic filtration is that tiny impurities are filtered out by using a filtering membrane under the effect of vibration waves; the vibration waves are provided by a vibration device which can be a vibration machine or an ultrasonic generator. The pore size of the filtering membrane is 0.1 to 100 um. The membrane filtration device by adopting the method comprises a shell (1) and the filtering membranes (2), wherein the shell (1) is fixedly provided with a sewage port I (3), a sewage port II (4), a clear water port I (6) and a clear water port II (7) which are used for sewage feeding, sewage discharging, clear water feeding and clear water discharging respectively. The inner cavity of the shell (1) is divided into a sewage cavity and a clear water cavity by the filtering membrane (2), and the sewage cavity and the clear water cavity are respectively communicated with the sewage ports and the clear water ports. The device is further provided with the vibration device for providing vibration waves for the filtering membrane (2). The impurity attaching rate of the filtering membrane is remarkably reduced, the service life of the filtering membrane is remarkably prolonged, the back flushing frequency is reduced, maintenance workload is reduced, and the efficiency is improved.

Description

technical field [0001] The invention belongs to the field of sewage purification treatment, in particular to a novel membrane filtration method and a device thereof. Background technique [0002] At present, there are many methods for treating sewage impurities, such as chemical methods, physical methods, electrochemical methods, etc., to treat different types of sewage impurities, so that the water quality can reach a certain standard and meet the water requirements of different fields. However, for difficult-to-treat wastewater and wastewater containing high concentrations of acid and alkali, a variety of water treatment technologies and different water treatment equipment are required to be used in combination. In addition to high investment costs, there is also a high impurity adhesion rate of the filter membrane in the ceramic filtration process. , short service life, high frequency of backwashing, heavy maintenance workload, low filtration efficiency and other defects....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/44B01D63/16
CPCC02F1/44B01D63/16B01D2311/2649B01D2315/04B01D2319/02
Inventor 石勇周建法
Owner 石勇
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