MODEL 82602-F79A-LCD/82602B-F79B-LCD/82604-F82A-LCD/82604B-F82B-LCD
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the purity of 100% （kg）
C——Consistence of regeneration fluid (%)
ρ——Density of regeneration liquid
Mcz= V
R
EkM/(ε×1000) (kg)
In this formula，V
R
——Resin volume (m
3
)
E——Resin exchange capacity (m
3
)
k——Reagent consumption, for down-flow regeneration,
k range from 1.2 to 1.8, for up-flow regeneration, k
range from 1.2~1.8
M——Molar mass of reagent, 58.5 for NaCl
ε——Purity of reagent, 95% to 98% for the NaCl content
of table salt
b）Slow rinse time = Slow rinse capacity/slow rinse rate（minute）
Generally, the water for slow rinse is 0.5～1 times of resin volume.
④ Brine tank refill time = Refill water capacity/refill rate (minute)
The capacity of refill water is equal with the consumption of
regeneration liquid. The real refill time should 1 to 2 minutes longer than
the calculated time in order to refill enough water in the brine tank. (the
brine tank should be equipped with liquid level controller)
⑤ Fast rinse time = Fast rinse capacity/fast rinse rate (minute)
Generally, the water for fast rinse is 3～6 times of resin volume, and
fast rinse time can be ranged from 10~12 minutes.
⑥ Exchange factor
Exchange factor = E/(k×1000)
In this formula, E——Resin working exchange capability（mol/ m
3
）， it is
related to the quality of resin. Down-flow
regeneration, take 800～900. Up-flow regeneration,
take 900～1200.
K——Security factor, always take 1.2～2. it is related to
the hardness of inlet water: the higher the
hardness is, the bigger the K is.
⑦ Set up interval backwash times（Only for up-flow regeneration mode）
When the turbidity of raw water is higher, the interval backwash time
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