Dextran is a high-molecular glucose polymer produced by the fermentation of sucrose by Leuconostoc mesenteroides, and is obtained by processing and refining.This product has now become an environmentally friendly sewage treatment agent with good effects and economic benefits in the world, and has been vigorously promoted and used in the United States, the European Union and other countries and regions.As a result, our company and research institute have developed a new sewage treatment agent dextran.
Compared with traditional sewage treatment agents, the dextran produced by our company as a new type of sewage treatment agent has the following outstanding features:
      1）Flocculation is efficient and non-toxic: Dextran is a natural organic polymer, generally safe and non-toxic.
      2）Under the same dosage, compared with the commonly used iron salt, aluminum salt, and polypropylene phthalamide, dextran has the highest flocculation speed for activated sludge, and the flocculated sediment is easy to filter;
      3）Can eliminate secondary pollution: Less dextran, fast flocculation, flocculated residue can be biodegraded, harmless to the environment, economical and cheap;The production process is simple and the cost is low: Dextran has better economic benefits than chemical flocculants.
      The above advantages of dextran as a new type of sewage treatment agent promote the research and development of such products, and provide a broad research space for the effective treatment of environmental sewage.