Product Performance
The PO-220 reverse osmosis antiscalant combines organic phosphate and dispersible high molecular polymer to prevent the deposition of inorganic scale. It is especially suitable for water quality with high scaling tendency, such as high content of carbonate, sulfate, oxide, barium and strontium in water. It has a good dispersing effect on particles and suspended solids, with high antiscaling efficiency, and will not coagulate with residual coagulants or aluminum-rich and iron-rich compounds. It is compatible with major reverse osmosis membranes, such as those produced by Hydranautics (USA), Dow (USA), Koch (USA), General Electric (USA), Woongjin Chemical (South Korea), Toray (Japan), etc. The use of this antiscalant and dispersant can extend the cleaning cycle, prolong the service life of the membrane, and reduce the operating cost.
Product Features
- Used for drinking water production (compliant with ANSI/NSF 60 certification standards);
- Effectively controls inorganic scaling within a wide concentration range, with the allowable LSI (Langelier Saturation Index) value of ≤ 2.8 without adding acid;
- Particularly effective in controlling iron, aluminum and heavy metal pollution, allowing the iron concentration on the feed water side to reach 8.0 ppm;
- Effectively inhibits the polymerization and precipitation of silicon, allowing SiO₂ (silicon dioxide) on the concentrate side to reach 290 ppm.
Usage Method
- Dosing Point: For optimal performance, PO-100 scale inhibitor should be added before the mixer or security filter. When preparing the chemical solution, stir thoroughly for 5–10 minutes. Clean the dosing tank regularly to prevent bacterial growth.
- Dosing Amount: The required dosing amount is determined by the operating conditions of individual devices and should be calculated based on factors such as feed water salinity, temperature, recovery rate, and type of RO membrane. The recommended dosing amount is 2–6 ppm.
- Please consult Puniao's technical engineers to determine the dosing point and dosing amount based on your specific system conditions. In some systems, specific dosing points and injection equipment are mandatory.
- Dilution: PO-100 scale inhibitor is a standard solution that can be dosed directly or used after dilution. RO product water or demineralized water should be used for dilution. The recommended dilution ratio is 10:1, and the dilution ratio should not exceed 20:1.
Packaging, Storage, Transportation, and Precautions
- Packaging: Packed in plastic barrels, available in 25kg/barrel, 200kg/barrel, or customized packaging according to user requirements.
- Storage: Store in a cool and dry place. The shelf life is 12 months.
- Precautions: Pay attention to labor protection during operation. Avoid contact with skin and eyes. In case of contact, rinse thoroughly with plenty of clean water.

