Section outline

    • The following pictures show the “flocculation of diatomite by soy-protein based flocculant”.

      Diatomite is common and ubiquitous soil or silt in Japan.

      Right side cylindrical tube is a control experiment (in the absence of flocculant”.

      I think you can see when flocculant is added, diatomite particles form large aggregates (called flocs) and settle.

      This is “flocculation”.


    • On the other hand, the suspended substances that have densities near water are hard to settle even they form large flocs.

      Next, I would like to show the pictures of “magnetic separation of water-bloom green alga”.

      The flocculant used in this experiment is the same as the above experiment.

      The densities of micro-organisms are very close to water and difficult to settle.

      Then, aoko was flocculated with fine powder of Fe3O4 (magnetic particle) by soy-protein based flocculant, and removed by magnet.