In recent years, more serious envir

In recent years, more serious environmental pollution, industrial wastewater containing heavy metal ions on the environment and human health have brought a more serious harm, how effective, low-cost removal of heavy metal ions in wastewater and would not bring secondary pollution It has become one of the important tasks of the current treatment of heavy metal wastewater. Therefore, it is imperative treatment of heavy metal wastewater. Conventional synthetic organic polymer adsorbent having a high toxicity, can not be reused, and can cause disadvantages refractory secondary pollution, greatly limits its application. In recent years, in our starch modified flocculant research, we have made some progress, synthesized a series of non-toxic, low-cost but good with a polymer flocculant flocculation effect. However, there are still some deficiencies in practical applications, especially the few studies on water treatment processes, and many products have not translated into practical application in a timely manner. Today, in-depth study of the adsorption of heavy metal ion polymer material also has become an important development direction of modern absorbent material. In addition, the modified starch how diversified development, to further improve its performance and effects that make it not only has the function of flocculation, but also other water treatment both functions, but also one of the future direction of development of modified starch flocculant . Best application conditions how to take full advantage of the rich resources of starch to develop a more efficient, non-toxic, inexpensive and commercialization of modified starch flocculant flocculants are still determined to further explore the issue.