Preparation And Evaluation Of Natural Polymer Flocculant

Natural polymer flocculant is normally used to treat waste water avoiding poisonous effect, and it is easy to be bio-degraded. The resources could be available easily and low cost. The project of corn core modified flocculant is raised from this consideration. As far as I know, this idea is an original conception in the world. An anionic natural polymer flocculant(ANPFC) and a cationic natural polymer flocculant (CNPFC) were introduced in this work. Both of them were prepared by reacting anionic and cationic reagent, respectively, with the parent corn-core powder. The optimal preparation condition was investigated by experiment. The flocculating properties of ANPFC and CNPFC were studied using a turbid kaolin solution. The result shows that CNPFC is suitable for the kaolin system, while ANPFC is not suitable for it. But we found that ANPFC is fit for the treatment of Pb2+ in waste water. Further the intermixture of ANPFC and inorganic flocculant (aluminium chloride) has surprisingly turbidity removal efficiency. And the experiment shows that CNPFC has good turbidity removal efficiency and its performance is superior to that of inorganic flocculant (aluminium chloride). In practical application, CNPFC presented good anti-disturbance ability to clay suspension system. Surely there is still something to be unproved because author initially pursued the study in this field for only a short time.