... , antibacterial, ,fertilizer,oil field,paper making,chemical ChitosanIntroduction: Chitosan uses Offshore shrimp & cab shells as raw materials and can be ... .Applications:a. In Chemical Engineering Field:Can be used for wall curing and flocculation of acidified of wastewater in oil ... and "not a fertilizer, but a fertilizer", can be used for seed treatment, soil improvement and so on.As feed additives ...