Anti-scale agent of reverse osmosis membrane for desalting seawater and brackish wat and preparation process thereof

Applicating Company

Shandong Hisea Delta Environmental Protection Technology Industrial Park Co., Ltd.

Technology Name

Anti-scale agent of reverse osmosis membrane for desalting seawater and brackish wat and preparation process thereof

Technical principle

1, That phosphorus content of the product is low (P < 1.5), and the discharge water of the concentrate water reaches the national standard, thereby being beneficial to environmental protection;

2. The product is a self-developed copolymer, which has strong chelation and dispersion, and is easy to biodegrade;

3. The group contained in the product is the same as the functional group of the reverse osmosis membrane element, which is not only compatible with the reverse osmosis membrane element, but also has synergistic effect;

4, The product is compatible with a special bactericide for use, and has a repair effect on a reverse osmosis membrane element;

5. Technically improve the production process, adopt chemical synthesis rather than compound process, and generate new substances through polymerization reaction. All intermediates are produced independently and not purchased externally, so as to ensure the stability of product quality and reduce product cost.

Scope of application

The scale inhibitor produced by the technology is a multipurpose comprehensive scale inhibitor and is widely applied to aircraft carrier and island reef seawater desalination systems, food, pharmaceutical and electronic pure water manufacturing, thermoelectric boiler water supply systems, boiler water vapor systems, circulating cooling water systems, reclaimed water reuse systems and wastewater zero-discharge evaporative crystallization MVR devices. This series of scale inhibitors can also be used in other fields such as circulating cooling water system and oilfield reinjection water system.

Process flow and description

This project adopts the synthesis technology of independent research and development, which has won the national invention patent. Under the condition of no "three wastes", ordinary chemicals are synthesized into a variety of polymers with multiple functions of multiple groups. Then, according to the environmental synergistic effect of "1 + 1 > 2" and the field treatment experience of our technical team for decades, the agents are compounded. Classified treatment is carried out according to the water quality of different sites, so that all systems are stable and qualified.

Promotion prospects

This technical achievement is innovative, the technical product has excellent scale inhibition performance and bacteriostatic effect, at the same time, the use of this product can significantly reduce the cost of drug use, achieve the application effect that surpasses the performance of foreign related products, fill the domestic gap, and has the ability to break the monopoly of foreign drugs on China's market. It is beneficial to promote the vigorous development of seawater and brackish water desalination in China, and has a very broad market prospect.