| abstract |
The present invention provides a collection agent capable of removing and retaining a specific chemical substance such as a radioactive substance contained in contaminated water. A collection agent for mixing nanocellulose with an adsorbent (for example, Prussian blue, alginic acid, etc.) having high binding power or selectivity for a specific chemical substance. It is preferable that it is a polyurethane porous body containing the said collection agent. A collection agent comprising a cellulose dispersant, which is a porous body having an internal space, and is preferably a porous body filled with the collection agent in the internal space. [Selection] Figure 1 |