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Construction method for hydraulic suspension magnetic membrane used for water purification, and magnetic membrane filtration apparatus

A construction method and suspended magnetic technology, applied in chemical instruments and methods, water/sewage treatment, adsorbed water/sewage treatment, etc., can solve problems such as the need for further improvement of water quality, achieve easy automatic operation, good regeneration function, guarantee The effect of magnetization

Inactive Publication Date: 2017-03-22
LANZHOU JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0006] Magnetic separation technology uses the magnetism of pollutants in sewage and wastewater to magnetically separate them. For weakly magnetic or non-magnetic pollutants, it is necessary to add "magnetic seeds" to make them have better magnetism, so as to achieve For the purpose of water purification, the water quality of its magnetic purification needs to be further improved

Method used

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  • Construction method for hydraulic suspension magnetic membrane used for water purification, and magnetic membrane filtration apparatus
  • Construction method for hydraulic suspension magnetic membrane used for water purification, and magnetic membrane filtration apparatus

Examples

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Embodiment Construction

[0030] Combine below figure 1 , figure 2 And implementation examples further illustrate the present invention.

[0031] The electric valves of the water inlet pipe (1) and the backwash water outlet pipe (12) are opened, and the electric valves on the backwash water inlet pipe (2) and the water outlet pipe (11) are closed.

[0032] By adjusting the flow control valve (18), the inflow flow is adjusted so that the ferromagnetic particles (8) are at the position of the magnetic field formed by the excitation coil (9) under the action of the water flow.

[0033] The excitation coil (9) is energized to magnetize the ferromagnetic particles (8), and after the ferromagnetic particles (8) form a magnetic film, the excitation coil (9) is powered off.

[0034] The magnetized ferromagnetic particles form a film and are hydraulically suspended under the action of the water flow to be treated.

[0035] The electric valve on the outlet pipe (11) is opened, the electric valve on the backw...

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Abstract

Directed at water body pollution, the invention provides a construction method for a hydraulic suspension magnetic membrane capable of removing and separating pollutants in a water body and a filtration apparatus. According to the invention, on the basis of the magnetic properties of ferromagnetic particles, an energized excitation coil is employed for magnetization of the ferromagnetic particles, and the magnetized ferromagnetic particles attract each other under the condition of a demagnetization field; under the action of to-be-treated water flow, the magnetic membrane is formed through hydraulic suspension; and the formed magnetic membrane can exert interceptive separation, adsorptive separation and repulsive effect and other effect on pollutants in water, so the purpose of removal of pollutants in a water body is achieved.

Description

technical field [0001] For water bodies, magnetic heavy metal pollutants or magnetic non-heavy metal pollutants can be filtered through magnetic membranes to achieve the purpose of enhanced filtration. [0002] Enhanced filtration and separation of low-temperature and low-turbidity water, slightly polluted water, and toxic and harmful industrial wastewater to form an energy-saving "magnetic membrane" separation technology to achieve the purpose of fine separation. When the magnetic membrane filtration effect is reduced, the magnetic membrane can be separated Backwash regeneration. [0003] For pollutants in water bodies, magnetic membrane filtration separation technology can be used, that is, magnetic substances can be filtered by magnetic adsorption; for non-magnetic substances, surface modification technology of ferromagnetic particles can be used to strengthen adsorption and filtration of target pollutants, while resisting Magnetic particles can be separated by magnetic re...

Claims

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Application Information

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IPC IPC(8): C02F1/44C02F1/48C02F1/28C02F101/20
CPCC02F1/44C02F1/28C02F1/484C02F2101/20
Inventor 班云霄杨惠君
Owner LANZHOU JIAOTONG UNIV
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