GIRE-097-2-2
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VII. OPERATION CONTROL
1. Standard Operating Conditions
Table VII-1 shows standard operating conditions for “TMR090 Series”.
These operating parameters such as MLSS, sludge viscosity, DO (dissolved oxygen
concentration) and pH should be kept in the range of the standard operation conditions given
in Table VII-1 in order to ensure stable operation.
The raw water should be treated with the proper pretreatment facilities before the membrane
modules to remove foreign matters which is harmful to the membrane such as big chunks of
suspended solid or oil.
Please use an alcohol-based antifoaming agent* if necessary.
* Recommended:
Kurita Water Industries “Kuriless P.F-663”
Schill & Seilacher “Structol SB2032”
Table VII-1 Standard Operating Conditions for “TMR090 Series”
Parameter
Unit
Operating condition
MLSS
mg/L
7,000-18,000
Sludge viscosity*
mPa
⋅
s
Not higher than 100 **
Not higher than 250 ***
DO
mg/L
1.0 or more
pH
-
6-8
Liquid Temperature
degree C
15 - 40
Continuous Average Filtration Flux
m
3
/m
2
/d (m/d)
0.75 or less
L/m
2
/h (LMH)
31.2 or less
Scouring air flow rate
TMR090-050S
NL/min/Module
650
TMR090-100S
1,300
* Measured by single cylinder rotary viscometer.
** B type viscometer, e.g. VT-03F by Rion Co., Ltd.
*** C type viscometer, e.g. TVC-5 by Toki Sangyo Co., Ltd.
Don't use the permeate water for drinking.
Analyze the quality of the permeate water to ensure that the water
quality meets the intended purpose before actual use.
Don't use chemicals, toxic agents, oils or other substances that
can adversely affect activated sludge.
CAUTION
!
WARNING
!
WARNING
!
