What is the difference between sodium alginate and chitosan?

As a natural weak cationic flocculant, chitosan contains a large number of amino and hydroxyl groups in its molecules, which are active and can be modified, activated and coupled. Therefore, chitosan and its derivatives have the characteristics of flocculant and adsorbent, and have a good adsorption effect on negatively charged organic and inorganic particles in water. Sodium alginate is a typical anionic polysaccharide. Its anionic activity mainly comes from the carboxyl group contained in the molecule.

Both chitosan and sodium alginate have a certain flocculation effect. When acting alone, they have a certain turbidity removal effect, but the decolorization effect is very small, and it is almost impossible to decolorize. However, the composite flocculant prepared by compounding chitosan and sodium alginate has a good effect. When the composite ratio is 1:1, the flocculation effect is better, and there is an obvious decolorization effect.

Taishen biology is a sodium alginate manufacturer, which produces Shandong sodium alginate, potassium alginate and carrageenan. Welcome new and old customers to call us for advice.