The operation stability of RO system is
determined by the pretreatment of original water quality.
For any RO system, after 3-12 months, it should be polluted,
thus the chemical cleaning is required.
TH-261 is an alkali detergent designed for removal of
oil, organic substances and bio-mucosa. It has the following
1. Suitable for all aromatic polyamide and acetate
2. Effectively remove oil, organic substances and
bio-mucosa from membrane surface.
3. Temperature increased, the effect will be better.
4. Diluent pH 10.5±0.5
5. Liquid chemicals, mix well.
6. Can be used repeatedly.
TH-261 is an alkali liquid formula, it can
remove oil, organic substances and bio-mucosa.
Dilute to 1-3%(1:45)
||Colorless to pale yellow transparent liquid
|pH（1:45 water solution）
lower than -5℃
（1）Check water box, pipeline and filter, change the
filter material if needed.
（2）Input q.v. RO effluence to water box.
TH-261 to water box, mix the solution with
water pump, measure pH.
（4）Clean the system repeatedly, measure pH 5-20 minutes.
After pH rise to 4, input q.v.
TH-261 or acid, till pH
not rise, meaning cleaning is end.
（5）If pollution is serious, sometimes the first batch
detergent should be evacuated and the next batch should
（6）Pay attention to solution temperature, don’t exceed
the required temperature .
200L plastic drum,IBC(1000L),customers’ requirement.
Safety and Protection:
Alkaline, Avoid contact with eye and
skin, once contacted, flush with water.