Chitosan is an ideal flocculant for water clarification applications due to its ability to bind to a variety of organic and inorganic particulates . Removal of suspended solids, dyes, heavy metals, and other pollutants is facilitated with chitosan in solution at acidic, neutral, and alkaline pH conditions [2,3]. Aggregation and flocculation by chitosan occurs because of the unique pH-sensitive and strong hydrophilic nature of chitosan. Chitosan can then be removed via filtration or sedimentation; leaving a clarified water behind without any residual toxic chemicals .
The removal of microorganisms from suspension also presents a challenge in beverage manufacturing, algal biomass production, and water treatment. Chitosan has been shown to bind directly to the outer cell wall of microorganisms in a range of pH conditions [5,6].
Chitosan is an eco-friendly solution for a wide range of water treatment applications.
- For swimming pool and spa clarifying, please see our Crystal Clarity page.
- For beverage fining, please see our Beverage Fining Agent page.
- For commercial stormwater and other industrial water treatment needs, please contact us here.
 Guibal, Eric, et al. “A review of the use of chitosan for the removal of particulate and dissolved contaminants.” Separation science and technology 41.11 (2006): 2487-2514.
 Bhatnagar, Amit, and Mika Sillanpää. “Applications of chitin-and chitosan-derivatives for the detoxification of water and wastewater—a short review.” Advances in Colloid and Interface Science 152.1 (2009): 26-38.
 Guibal, Eric. “Interactions of metal ions with chitosan-based sorbents: a review.” Separation and purification technology 38.1 (2004): 43-74.
 Renault, François, et al. “Chitosan for coagulation/flocculation processes–an eco-friendly approach.” European Polymer Journal 45.5 (2009): 1337-1348.
 Divakaran, Ravi, and V. N. Sivasankara Pillai. “Flocculation of algae using chitosan.” Journal of Applied Phycology 14.5 (2002): 419-422.
 Cheng, Yu-Shen, et al. “The impact of cell wall carbohydrate composition on the chitosan flocculation of Chlorella.” Process Biochemistry 46.10 (2011): 1927-1933.