How to choose the right polyacrylamide
There are differences in the acid-base properties of different polyacrylamide, which can be distinguished according to the different acid-base properties. Generally speaking, the acidity and alkalinity of the solution of anionic polyacrylamide are generally alkaline, which is more suitable for the treatment of acidic sewage. The cationic polyacrylamide is generally acidic and is more suitable for the treatment of alkaline sewage. For nonionic polyacrylamide, it is more suitable for treating neutral sewage.
As a commonly used water purification agent, polyacrylamide has a very good market prospect. With the emphasis on environmental protection in various countries, the utilization and protection of water resources is a key project of environmental protection. Polyacrylamide will play a huge value in the environmental protection market.
Polyacrylamide is mainly used in sewage treatment, drinking water treatment, industrial water treatment, chemical plant water treatment, paper mill water treatment, sludge dewatering, drinking water treatment, etc. Cationic polyacrylamide is commonly known as "universal agent" and "dehydrating agent" . In recent years, due to the research and wide application of additives in the petroleum industry, the research on organic cationic polyacrylamide polymers has been greatly developed.
When treating this kind of wastewater with cationic polyacrylamide, the flocculation of anionic polyacrylamide is used to coagulate and precipitate the dispersed colloidal starch, protein, sugar, suspended solids and other substances, and separate them from water. After the separation of sludge and water, the separated sludge is recycled. Cationic polyacrylamide can be widely used in aquaculture, feed and agriculture. The purified water can be adsorbed by the activated carbon adsorption method to absorb the tiny organic substances contained in the water, thoroughly purify it, and meet the discharge standard.
When choosing cationic polyacrylamide, in addition to the molecular weight, ionicity and other indicators that need to be paid attention to, the degree of hydrolysis must also be clear to everyone. The degree of hydrolysis of cationic polyacrylamide is an index describing the degree of hydrolysis, which reflects the degree of This property of acrylamide. When it comes to the concept of degree of hydrolysis, we generally think of cationic polyacrylamide or nonionic polyacrylamide.