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Magnetic separation-membrane distillation device for purifying sewage and recycling useful components and application of magnetic separation-membrane distillation device

A technology of water collection device and membrane distillation, which is applied in water/sewage treatment, water/sewage treatment equipment, multi-stage water/sewage treatment, etc., can solve membrane pollution and other problems, achieve simple equipment, low energy consumption, and improve water output The effect of water quality

Inactive Publication Date: 2018-05-01
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Technical problem to be solved: Aiming at the problem of membrane pollution in the membrane distillation process in the prior art, the present invention provides a magnetic separation-membrane distillation device for purifying sewage and recovering useful components and its application, which can effectively purify waste water and reduce waste water For the pollution problem of subsequent membrane distillation treatment technology, improve the treatment efficiency of membrane distillation and prolong the service life of membrane

Method used

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  • Magnetic separation-membrane distillation device for purifying sewage and recycling useful components and application of magnetic separation-membrane distillation device
  • Magnetic separation-membrane distillation device for purifying sewage and recycling useful components and application of magnetic separation-membrane distillation device

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Embodiment 1

[0029] A magnetic separation-membrane distillation device for purifying sewage and recovering useful components, the device includes a high-gradient magnetic separator 1, a liquid storage tank 3, a magnetic pump a4, a constant temperature heating water bath 5, and a rotameter a 6 , membrane assembly 7, rotameter b8, low temperature and constant temperature water tank 9, magnetic pump b 10, product water collection device 11 and membrane distillation water tank 12.

[0030] The magnetic field strength in the high-gradient magnetic separator 1 is 0.5-1.5T. The top of the high-gradient magnetic separator 1 is provided with a water outlet, a pressurized water inlet for backwashing, and an air inlet for backwashing. The high-gradient magnetic separator The bottom of 1 is provided with a waste water inlet and a backwash outlet. The high-gradient magnetic separator 1 includes an electromagnetic coil 2 and an inner hollow container. The electromagnetic coil 2 is arranged outside the in...

Embodiment 2

[0040] A magnetic separation-membrane distillation device for purifying sewage and recovering useful components, the device includes a high-gradient magnetic separator 1, a liquid storage tank 3, a magnetic pump a4, a constant temperature heating water bath 5, and a rotameter a 6 , membrane assembly 7, rotameter b8, low temperature and constant temperature water tank 9, magnetic pump b 10, product water collection device 11 and membrane distillation water tank 12.

[0041] The magnetic field strength in the high-gradient magnetic separator 1 is 0.5-1.5T. The top of the high-gradient magnetic separator 1 is provided with a water outlet, a pressurized water inlet for backwashing, and an air inlet for backwashing. The high-gradient magnetic separator The bottom of 1 is provided with a waste water inlet and a backwash outlet. The high-gradient magnetic separator 1 includes an electromagnetic coil 2 and an inner hollow container. The electromagnetic coil 2 is arranged outside the in...

Embodiment 3

[0050] A magnetic separation-membrane distillation device for purifying sewage and recovering useful components, the device includes a high-gradient magnetic separator 1, a liquid storage tank 3, a magnetic pump a4, a constant temperature heating water bath 5, and a rotameter a 6 , membrane assembly 7, rotameter b8, low temperature and constant temperature water tank 9, magnetic pump b 10, product water collection device 11 and membrane distillation water tank 12.

[0051] The magnetic field strength in the high-gradient magnetic separator 1 is 0.5-1.5T. The top of the high-gradient magnetic separator 1 is provided with a water outlet, a pressurized water inlet for backwashing, and an air inlet for backwashing. The high-gradient magnetic separator The bottom of 1 is provided with a waste water inlet and a backwash outlet. The high-gradient magnetic separator 1 includes an electromagnetic coil 2 and an inner hollow container. The electromagnetic coil 2 is arranged outside the in...

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Abstract

The invention provides a magnetic separation-membrane distillation device for purifying sewage and recycling useful components and application of the magnetic separation-membrane distillation device,and belongs to the technical field of sewage resource utilization. The device comprises a high gradient magnetic separator, a liquid storage tank, a magnetic pump a, a constant temperature heating water bath kettle, a rotor flow meter a, a membrane component, a rotor flow meter b, a low-temperature constant temperature water tank, a magnetic pump b, a produced water collecting device and a membrane distillation water discharge tank. Flocculants and magnetic seeds are put in sewage, then the sewage is pretreated by adopting a high-gradient magnetic separation technology, and then, the sewage isdelivered into the membrane component to be subjected to membrane distillation treatment. The magnetic separation-membrane distillation device and the application thereof provided by the invention can solve the problem of environmental pollution caused by sewage discharge and can realize recycling of the useful components, and the magnetic separation-membrane distillation device has the advantages of low energy consumption, high efficiency, simple equipment, big processing capacity and the like.

Description

technical field [0001] The invention belongs to the technical field of sewage resource utilization, and relates to a magnetic separation-membrane distillation device for purifying sewage and recovering useful components and its application. Background technique [0002] Membrane distillation technology is an important chemical unit that has developed rapidly in the past 20 years. Its application has developed from early desalination to wastewater treatment, product separation, and high-purity water preparation in chemical, food, pharmaceutical, and electronics industries. Membrane distillation is a new type of separation technology. It is a membrane separation process that uses the difference in vapor pressure on both sides of a hydrophobic microporous membrane as the driving force for mass transfer. For example, when aqueous solutions of different temperatures are separated by a hydrophobic microporous membrane , due to the hydrophobicity of the membrane, the aqueous soluti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/12
CPCC02F1/447C02F1/488C02F1/5245C02F9/00C02F2201/483C02F2209/02C02F2209/40C02F2303/14
Inventor 陈琳王成燚胡勤政刘畅
Owner HOHAI UNIV
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