What are the advantages and disadvantages of ultrafiltration water purifiers? Do you know?

Ultrafiltration water purifier, It is a popular water purifier on the market at present. Today we're going to talk about itAdvantages and disadvantages of ultrafiltration water purifierAnd related issues!

　　Ultrafiltration water purifier uses ultrafiltration membrane filtration technology, This technique is purely physical filtration, It mainly relies on the micropores on the surface of the ultrafiltration membrane for filtration, All it takes is the pressure of the tap water. The filtration accuracy of ultrafiltration membrane is about 0. 01 micron, Primary filter bacteria, rust, colloid, sediment, Suspended matter, macromolecule, Residual chlorine organic matter and other harmful substances.

　　Ultrafiltration water purifier at a certain pressure when the stock liquid flows through the membrane surface, The dense micropores on the surface of the ultrafiltration membrane allow only water and small molecules to pass through and become a permeable liquid, As we all know, substances in the stock solution whose volume is larger than the micropore size of the film surface are trapped in the liquid inlet side of the film, concentrate, Therefore, the purpose of purification, separation and concentration of the stock liquid is realized.

In addition, every meter of ultrafiltration membrane wire wall is about 60 Hundred million 0. 01 Micropores in micrometers, Its pore size allows only water molecules and beneficial minerals and trace elements in the water to pass through, And in general, the size of small bacteria is in 0. 02 Micrometer above, So bacteria and rust, which is much larger than bacteria, colloid, Suspended matter, Sediment and macromolecular organic matter can be trapped by ultrafiltration membrane, This enables the purification process.

　　Advantages and disadvantages of ultrafiltration water purifier

　　advantage: Ultrafiltration water purifiers usually do not require a pump, It doesn't use electricity, The normal water pressure of municipal tap water is generally used, Less wastewater is produced, It also retains minerals and trace elements in the water.

　　shortcoming: The effect of ultrafiltration water purifier on removing chemical pollutants and scale in water is not as strong as that of pure water machine, There may be some ions that are harmful to the human body that cannot be filtered effectively.

　　Common functional faults and solutions of ultrafiltration water purifier:

　　one, Ultrafiltration water purifier smell or appear white like oil stains like floating matter.

　　Cause investigation and solution:

　　1, Ultrafiltration membrane inside the protective liquid glycerin; Turn on the tap and let the water run 20-30 minutes, Until it doesn't smell.

　　2, The filter element is dirty; Replace filter element.

　　two, The quality of the water produced by the ultrafiltration water purifier is not up to standard or the interception effect is reduced.

　　Cause investigation and solution:

　　1, Concentration polarization, Increase the return flow of concentrated water, Accelerate the velocity in the membrane;

　　2, Broken wire, Locate the broken wire, It was repaired with epoxy resin; Or replace the ultrafiltration membrane;

　　3, Secondary pollution, Improved post-effluent treatment;

　　4, Raw water quality deteriorates, pretreatment, Make it meet the requirements of ultrafiltration water;

　　5, Incorrect selection of filtering accuracy, Replace the membrane with the appropriate filtration accuracy;

three, Ultrafiltration water purifier discharge black water

　　Cause investigation and solution:

　　1, The first flush of activated charcoal, Releasing surface carbon particles, Water is black; After the black water is drained, It's safe to use;

　　four, The ultrafiltration water purifier is very loud when it uses water

　　Cause investigation and solution:

　　1, High water pressure, A pressure reducing valve is installed in the front section of the machine (Control the water pressure into the machine at 01. -0. 3Mpa) Turn the inlet valve down or don't open the tap too wide;

　　five, The original water pump of the ultrafiltration water purifier does not start

　　Cause investigation and solution:

　　1, High inlet pressure, Pressure protection switch trip, Adjust the butterfly valve of the ultrafiltration main engine, Make the water inlet pressure less than 0. 3Mpa;

　　2, The water level of the ultrafiltration tank is too high, Only after the water level of the product tank drops to normal can it be started;

　　3, The water level of the original ultrafiltration tank is too low, It can only be started when the water level of the original water tank rises to normal;

　　six, Ultrafiltration water purifier backwash pump does not start

　　Cause investigation and solution:

　　1, The backwash water pressure is too high; solution: Pressure protection switch trip, Adjust the backwash inlet butterfly valve, Make the water inlet pressure less than 0. 2Mpa;

　　2, The product water level is too low; solution: Only after the water level of the product water tank rises can it be started.