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Ratio of national security filter to imported pipeline First, I have encountered this situation several times at the actual scene,The general situation is as follows: 1. the inlet water of the system is wastewater or reclaimed water reuse;2. there is sodium chloride sterilization before the general time,There is a reduction of sodium bissulfate;3. the security filter is seriously polluted and blocked,Not just security filters,This kind of pale yellow paste is also included in the pipeline after adding sodium bisultan

Is there any movie that is a little yellow and abusive? China Blind woman 72 hours

Our unit has a medium water treatment station, mainly domestic sewage, which has been used for greening irrigation and flushing toilets. it has not been used for 4 years. please consult the master! The medicine depends on what your disinfection and dosing device is,Before running, ensure that the pool body does not leak,The pipeline is unblocked,Contact oxidation tank filler available,Uniform aerated,There is no problem with the above, you can enter the sand carbon tank for 4 years,It is best to soak 1-2 days,Then rinse with large flow backwashing for a long time.The plate caking will be very large without opening the pressure difference.