1. Overview
Reverse osmosis technology is a membrane separation technology developed in the 1960s. Compared with traditional ion exchange desalination technology, it has been rapidly developed due to its simple operation, almost no wastewater discharge, and low operating costs. However, the concentrated water in reverse osmosis devices is highly susceptible to contamination by sediments, such as those generated on the membrane surface CaCO3、Ca3(pO4)2、CaSO4、 BaSO4、SrSO4、 Sediments such as metal oxides and silicate compounds can affect the normal operation of reverse osmosis devices and, in severe cases, lead to the scrapping of reverse osmosis membranes. The most common method to solve this problem is to add scale inhibitors to the reverse osmosis influent, so the development of reverse osmosis scale inhibitors has always been a hot topic of research. Below is a detailed introduction to the research status of reverse osmosis scale inhibitors abroad.
On the basis of long-term tracking of imported products from abroad, our company has established a professional research and development of scale inhibition, sterilization, and cleaning series products for reverse osmosis systems. We can provide relevant treatment formula requirements for various types of water quality in China. After years of application by multiple domestic enterprises, it has been proven that its reverse osmosis scale inhibition effect can be comparable to imported products from abroad, with some indicators even exceeding those of foreign products. Moreover, the product performance is stable and the price is relatively low.

2. Description of main products of foreign reverse osmosis agents
① King Lee's main reverse osmosis agent
Cleaning agent name Cleaning object Film type pH value
Diamite ACA microorganisms; Silt; organic compound; Colloid; Acid insoluble substance CA neutral
Diamite LPH and ZPH CaCO3； metallic oxide; Inorganic salts; Substances soluble in acid have low TFC
Diamite AFT and BFT microorganisms; Silt; organic compound; Colloid; Substances insoluble in acid with high TFC
Scale inhibitor/dispersant PTP-0100
PTP-0100 is a scale inhibitor and dispersant, particularly suitable for water with high content of metal oxides, silicon, and scaling salts. Its scale inhibition efficiency is high and it does not aggregate with residual coagulants or silicon compounds rich in aluminum and iron to form insoluble polymers. PTP-2000 is a scale inhibitor/dispersant, particularly suitable for reverse osmosis systems with severe scaling tendency of calcium carbonate, calcium sulfate, barium sulfate, and strontium sulfate in feed water. ProTec RO C is an anti coagulation/anti fouling dispersant, particularly suitable for membrane element fouling caused by high SDI values in water supply.

② American PWT company Titan ASD 200
11 times super concentrated solution of anti scaling agent for reverse osmosis membrane

③ Nalco Chemical (produced domestically)
General Purpose Antiscalants Sulfate Antiscalants
PermaTreat PC-1850 PermaTreat PC-504T
PermaTreat PC-1020/1020T
PermaTreat PC191/191T Silica Antiscalants
PermaTreat PC-391/391T PC-510/510T
PermaTreat PC-1638T

④ BetzDearborn Company (produced domestically)
Hpersperse ™－ A series of liquid scale inhibitors/dispersants used to control scaling and reduce particle pollution.
Hypersperse MDC150, MDC220 scale inhibitors - compatible with coagulants SoliSep MPT150 and MPT100.
Hypersperse MSI300 scale inhibitor - A large amount of data shows that after using this product, the silicon content on the concentrated water side reaches 240ppm without scaling.
Kleen MCT511- Liquid cleaning agent used to remove microorganisms, organic matter, sludge, and other particulate deposits from the surface of polyamide membranes.

⑤ Biolab (Great Lakes Corporation) reverse osmosis agent
Special scale inhibitor for reverse osmosis membrane
Flocon 135
Flocon 260
⑥ Rohm and Haas
American Rohm and Haas ACUMER ™ 4035 (1035), 4450, 4800 products are polymer scale inhibitors and dispersants used in membrane separation processes.



The characteristic of the JA series membrane specific agents developed by our company is to refine the reverse osmosis system and water quality. Its products can be specially selected according to different water quality and user operating conditions. Such as well water specific type, surface water specific type, high-speed rail specific type, flocculant compatible type, and high Ba, Sr water specific scale inhibitor. Developed in sync with the world, the main single agent is imported original packaging. Our water treatment experts also provide users with more comprehensive technical services, such as the selection of scale inhibitors and fungicides, diagnosis of problems during system operation, and cleaning after membrane fouling.
Finally, we are willing to work closely with colleagues from all walks of life to advance China's reverse osmosis water treatment industry