The present invention concerns a process for removing ions from waste water, which process comprises providing plant-derived cationic nanofibrillar cellulose, carrying out a purification treatment comprising sorption of ions contained in the waste water to the plant-derived cationic nanofibrillar cellulose, separating used plant-derived cationic nanofibrillar cellulose from the waste water, and recovering treated waste water. The invention also concerns use of plant-derived cationic nanofibrillar cellulose in water treatment for removing charged contaminants.
|Publication Year||15 Feb 2019|
|Publication status||Published - 15 Feb 2019|
|MoE publication type||H1 Granted patent|
Fields of Science
- 1172 Environmental sciences
Hartikainen, H. H., Venäläinen, S. H., Nuopponen, M., & Meriluoto, A. (2019). IPC No. C02F 1/58 (2006.01), B01J 20/28 (2006.01), B01J 20/24 (2006.01), D21H 11/18 (2006.01), D21H 11/20 (2006.01) , C02F 101/10 (2006.01), C02F 101/20 (2006.01), C08L 1/02 (2006.01). Water treatment: (Patent specification FI 127764 B). (Patent No. FI 127764 B). Finnish Patent and Registration Office.