What is the unit of ppm for the addition of reverse osmosis scale inhibitor in Hongjie Water Service

What is the unit of ppm for the addition of reverse osmosis scale inhibitor in Hongjie Water Service

The dosage of reverse osmosis scale inhibitor is usually measured in ppm, and the dosage of reverse osmosis scale inhibitor is 3-5 ppm. So what is the unit of this ppm? Ppm is a unit of solute concentration, expressed as the percentage of solute mass to the total solution mass, also known as the concentration in parts per million. The amount of reverse osmosis scale inhibitor added, ppm, is a unit of solute concentration.

1： What is the unit of ppm

Why is the amount of reverse osmosis scale inhibitor added in ppm? The word ppm is an abbreviation for part per million, which translates to a fraction in millions in Chinese. It is similar to our percentage, but more accurate than a percentage.

We all know that when reverse osmosis scale inhibitors are used in reverse osmosis membrane separation systems, the amount of water added is very small, and a small amount can prevent fouling and scaling of the dispersed membrane. Therefore, using a percentage to represent the amount of reverse osmosis scale inhibitor added is not accurate enough, while PPM is accurate to one millionth, which is much more reliable than a percentage. The amount of reverse osmosis scale inhibitor added is 3-5 ppm, which means the amount of water added per ton is 3 to 5 grams.

2： Reverse osmosis scale inhibitor

Reverse osmosis scale inhibitor is an acid based high-efficiency scale inhibitor dispersant, also known as reverse osmosis membrane scale inhibitor or reverse osmosis scale inhibitor. It is particularly suitable for water with high content of metal oxides, silicon, and scaling salts. Its scale inhibition efficiency is high and it does not agglomerate with residual coagulants or silicides rich in aluminum and iron to form insoluble polymers. The use of this product in the system can reduce the equipment investment and operating costs of reverse osmosis (RO), nanofiltration (NF), or ultrafiltration (UF) systems, and can replace ion exchange pretreatment systems in this situation. Reverse osmosis membrane scale inhibitor is suitable for a wide range of water sources, with low dosage and high efficiency in scale inhibition.

Product features

Effectively control inorganic scaling within a large concentration range, with a maximum allowable value of 2.8 for LSI under no acid added conditions;

● Not agglomerate with iron aluminum oxides and silicon compounds to form insoluble substances;

● Especially effective in controlling iron, aluminum, and heavy metal pollutants, the concentration of iron on the inlet side is allowed to reach 8.0ppm;

● Can effectively suppress the aggregation and deposition of silicon, with SiO2 allowed at 290ppm on the concentrated water side;

Economical dosing can save operating costs;

Excellent solubility and stability;

The pH value of the feedwater is valid within the range of 5-10;

Adapted to various types of water sources in China, with strong water quality compatibility;

Usage:

The amount of reverse osmosis scale inhibitor added is 3-5 ppm, Calculate the amount of chemicals to be added or consult technical personnel based on factors such as the specifications, water production capacity, control conditions, raw water quality composition, and hardness of the reverse osmosis membrane.

3： Application of reverse osmosis scale inhibitors

Reverse osmosis scale inhibitor is a scale inhibitor specifically designed for reverse osmosis (RO) systems, nanofiltration (NF), and ultrafiltration (UF) systems. It can prevent membrane fouling, improve water production and quality, and reduce operating costs.

Reverse osmosis scale inhibitors are suitable for the anti scaling and dispersion protection of various reverse osmosis membrane components such as Dow Filmtec, Hydranautics, Fluid Systems, TORAY/GE, and CSM in the United States. Within the recommended dosage range, the majority of the following types of scaling calcium carbonate, calcium sulfate, barium sulfate, strontium sulfate, iron hydroxide, aluminum hydroxide, and silicon can be controlled.

Reverse osmosis scale inhibitor products are a type of consumable agent. Only long-term use of reverse osmosis scale inhibitor products can achieve the goal of prolonging the system cleaning cycle, prolonging the service life of membrane components, and reducing operating costs.

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