(1) Do the raw water pretreatment work. In the case of ensuring the effluent quality of the clarifier, the amount of FeCl3 coagulant is reduced as much as possible to prevent the iron salt from moving backward, and the effluent turbidity of the anthracite quartz sand filter is strictly controlled.
(2) Strictly control the content of NaClO3 and Fe2O3 in the regenerant caustic soda solution.
(3) All recovered condensate must pass through the cyanide cotton iron removal filter and then enter the resin bed for treatment. When the funds permit, you can consider changing the cyanide cotton iron removal filter to the magnetic iron removal filter to improve the iron removal efficiency.
(4) For each regeneration of the weak cation exchanger, the resin bed is backwashed back with an anthracite quartz sand filter at a flow rate of 8 m/h until the effluent is clear to elute the sputum attached to the surface of the resin. The strong cation exchanger and the yin bunk bed are subjected to large backwashing at regular intervals, and the flow rate is preferably such that the resin does not run out from the backwash water outlet.
(5) Before each regeneration of the mixed bed, use 0.1Mpa of compressed air to scrub the resin from the bottom of the mixed bed at a gas velocity of about 22m/h, then rinse it with first-grade desalinated water, and repeat it several times until the mixed bed is clear. To elute iron attached to the surface of the resin.
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