MODEL 82602-F79A-LCD/82602B-F79B-LCD/82604-F82A-LCD/82604B-F82B-LCD
28
3.4. Parameter settlement
① Service TimeT1
Water Treatment Capacity:
Q=V
R
×K÷Y
D
（m
3
）
Hardness of Inlet Water, mmol/L.
Exchange factor, mmol/L, 400～1000.
Down-flow regeneration 400 ～ 750 ；
Up-flow regeneration, take 450～1000.
If the inlet water hardness is higher, the
factor is smaller.
Resin volume，m
3
.
By hours：T1=Q÷Q
h
（Hour）
Water treatment capacity ( m
3
/h )
Water treatment capacity（m
3
）
By days： T1=Q÷Q
d
（Day）
Water treatment capacity per day (m
3
/d)
Water treatment capacity (m
3
)
② T2 Backwash time T2
It is subject to the turbidity of inlet water. Generally, it is suggested to
be set 10～15 minutes. The higher the turbidity is, the longer backwash
time shall be set. However, if the turbidity is more than 5FTU, it is better to
install a filter in front of the exchanger.
③ Brine& slow rinse time (Slow rinse time is also replacement time)
a）Brine time=60×V
Z
/(S×v) (min.)
V
Z
=m
cz
/(C×ρ×10
3
) (m
3
)
In this formula，V
Z
——Regeneration fluid volume (m
3
)
S——Cross-sectional area of exchanger layer (m
2
)
v——Regeneration fluid flow rate (m/h)
Mcz——The amount of reagent when regenerate reach to
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