At present, reverse osmosis technology is commonly used in water treatment engineering. Reverse osmosis scale inhibitors are the most important consumables in reverse osmosis water treatment equipment, used to prevent membrane fouling, improve equipment water production and water quality, etc. The factors that affect the effectiveness of reverse osmosis scale inhibitors can be roughly divided into three situations

The influence of iron ions

The effectiveness of reverse osmosis scale inhibitors often increases the concentration of iron ions in circulating water due to metal corrosion, especially in systems with highly corrosive water quality and material leakage. The concentration of iron ions can sometimes reach up to 5mg/L. Iron ions have a huge impact on the inhibition of calcium phosphate scale by all agents, and the effect of inhibiting calcium phosphate scale decreases significantly with the increase of iron ion concentration.

The influence of calcium hardness and alkalinity

In the practice of reverse osmosis scale inhibitor treatment, it has been found that the hardness and alkalinity of calcium in water have a significant impact on the effectiveness of scale inhibitors and dispersants With the increase of calcium hardness and alkalinity, the scale inhibition rate decreases, but the degree of impact is different.

Compared to inhibiting calcium carbonate, the hardness and alkalinity of calcium in water have a greater impact on the effectiveness of inhibiting calcium carbonate Except for the relatively small impact on the inhibitory effect of these agents on calcium phosphate, these agents almost completely lose their scale inhibition effect on calcium phosphate.

The impact of fungicides
The concentration of the drug itself is one of the significant factors affecting the scale inhibition and dispersion effect The effect of inhibiting calcium carbonate is different from that of inhibiting calcium phosphate. There is a minimum concentration of inhibiting calcium phosphate, and only when the concentration of the agent exceeds this minimum concentration, will the agent have the effect of inhibiting calcium phosphate Turbidity has varying degrees of impact on the scale inhibition and dispersion effects of chemicals, but has a greater effect on the inhibition of calcium phosphate. As turbidity increases, the effect of inhibiting calcium phosphate decreases significantly Iron ions have a significant impact on the scale inhibition and dispersion of drugs. Whether it is on inhibiting calcium carbonate or inhibiting calcium phosphate, the scale inhibition and dispersion effect decreases with the increase of iron ion concentration.    

It is necessary to understand the factors that affect the effectiveness of reverse osmosis scale inhibitors in order to achieve optimal results during application. Punio Environmental Protection Technology Co., Ltd. is dedicated to research and innovation. Develop different composite agents for different water sources. Reverse osmosis scale inhibitors BL-025, BL-006, and BLJ-010 have all achieved good results, effectively extending the service life of reverse osmosis membranes, providing operational capacity for water treatment systems, and reducing system cleaning and maintenance work.