Method for improving operating performance of intake filtration and reverse osmosis process utilizing magnetization pretreatment

A technology of operating performance and reverse osmosis, which is applied in the field of water treatment technology and material separation, can solve the problems of operator safety hazards, safety hazards, and high costs, and achieve the effects of lengthening cleaning cycles, prolonging service life, and low investment and maintenance costs
CN1238095CInactive Publication Date: 2006-01-25TSINGHUA UNIV
0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TSINGHUA UNIV
Publication Date
2006-01-25
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention is a method of enhancing operation performance of nano filtering and reverse osmosis course by magnetization pretreatment. It discloses the method for prohibiting the pollution problem in the course of nano filtering and reverse osmosis and enhancing film operation flux and retention, during the course of nano filtering and reverse osmosis, makes magnetization pretreatment on the water, the applied magnetic strength 100mT-500mT, the water flow speed in the magnetic field controlled at 0.5-3m / S and the temperature controlled at 13 deg.C-40 deg.C. It enhances both the film flux and the film retention to solute. At the same time, it will have no effect on water quality and personal safety, and has low energy consumption and some particular advantages.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical fields of water treatment technology and material separation, and in particular relates to a membrane pollution control technology. Background technique

[0002] Membrane technology was originally a new technology developed and applied to alleviate the global water crisis. Among the existing membrane technologies, nanofiltration and reverse osmosis membrane technologies have been widely used in water softening, material recovery and wastewater treatment. . However, membrane fouling seriously restricts the further promotion of membrane technology. Membrane fouling will not only reduce the flux of the membrane, but also cause damage to the membrane itself and shorten the service life of the membrane. Existing methods to control membrane fouling mainly include changing the feed liquid composition (such as: adjusting the pH value of the membrane feed water, adding scale inhibitors to the membrane feed water, using u...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More