When using water purifiers in winter, many users will find that the water output of water purification equipment will be much smaller than usual, and at the same time, the proportion of wastewater will increase. The effluent is small and the proportion of wastewater becomes high, and many users think that this is a failure of the machine's performance and the machine is unqualified.
Today, Hai Zhuangyuan will give you an answer to why the water purifier produces wastewater? The problem of a sudden increase in wastewater from water purifiers.
The origin of the wastewater of the reverse osmosis water purifier
Analysis of the working principle of reverse osmosis water purifier can be knownThe working process of the reverse osmosis membrane, the core component of the water purifier, is actually a liquid concentration process, and the salt content in the water continues to increase as the water flows through the surface of the reverse osmosis membrane, and the osmotic pressure of the water also increases. When the osmotic pressure increases to the pressure of the booster pump, the water cannot flow through the reverse osmosis membrane to the clean water end, and this part of the water that fails to pass is the wastewater generated during water production. Therefore, the reverse osmosis water purification machine will discharge a certain percentage of wastewater at the same time as producing pure water, but when the amount of wastewater suddenly increases, it is necessary to check the following points to see if there is a failure.
1.Wastewater is more damaged than the solenoid valve
Generally, the wastewater solenoid valve is installed at the wastewater discharge port, and the water flows through the RO reverse osmosis membrane filtration, and the wastewater flows out through the wastewater solenoid valve. When the wastewater solenoid valve fails to close or is not closed tightly, the amount of wastewater increases. If the amount of wastewater is still large after the automatic flushing of the water purifier and the replacement of the filter element, then it is possible that the wastewater solenoid valve is faulty, and it may be necessary to replace the wastewater solenoid valve.
2.The electric control board is damaged
If the electric control panel of the water purifier is damaged, the water purifier will be in a flushing state all the time, which will also cause a large amount of wastewater in the water purifier. Damage to the control board is a repair level, and it is best to ask a professional to check whether the control board needs to be replaced.
3.RO membrane blockage
The RO membrane can be clogged if it is used for longer than its service life, or if the local water quality is poor and the RO membrane is overloaded with impuritiesAt this time, a higher pressure is required to press the water into the RO membrane, but the pressure of the booster pump is constant, so the water efficiency of the reverse osmosis water purification mechanism is slow, the amount of pure water coming out is reduced, and the amount of wastewater is increased. When this problem occurs, the water purifier with automatic cleaning function can directly turn on the automatic cleaning function to flush the filter element. If you feel that the effect is not obvious enough after rinsing, or there is no such function, you can contact a professional to come to deal with it.
4.The water inlet solenoid valve is damaged
If the water purifier is in a state of shutdown, but the wastewater keeps flowing, it may be caused by damage to the inlet solenoid valve. You can unplug the power of the machine to observe, if this is indeed the reason, the water inlet solenoid valve needs to be repaired or replaced.
5.The check valve is damaged
If the check valve is aging or malfunctioning, it will cause the water that has entered the pressure barrel to flow backwards from the check valve to the waste pipe, and at the same time cause the pressure loss of the high-pressure pipeline and the repeated start of the motor.
6.Winter temperatures are too low
The optimal working temperature of the reverse osmosis filter element of the water purifier is 5 to 25, if the temperature is too low in winter, due to the natural principle of thermal expansion and cold contraction, the membrane pore size shrinks, the amount of water purified through the membrane is reduced, and the amount of wastewater will naturally increase. For every 1 decrease in general temperature, the amount of wastewater increases by 3%. In this case, there is no need to worry, as long as the temperature rises, the water purifier will naturally return to normal purification efficiency.
Water purifiers will produce wastewater no matter what, but some brands of water purifiers have more wastewater, and some have less wastewaterWe can accumulate wastewater so that it doesn't go to waste, and we can use it efficiently. For example, the wastewater from the water purifier is directly led to the bathroom, and it is packed in a bucket to wash clothes or mop the floor, or water flowers, flush the toilet, etc., which can also save water.