Phosphorylated nanocellulose papers for copper adsorption from aqueous solutions

• DOI: 10.1007/s13762-016-1026-z
• Publication Date: 2016-06-02T08:12:41Z
• Authors: A. Mautner; H. A. Maples; T. Kobkeatthawin; V. Kokol; Z. Karim; K. Li; A. Bismarck
• Keywords: Nanocellulose; Permeance; Filtration (mathematics)

Copper is a major problem in industrial wastewater streams, seriously affecting the quality of potential drinking water. Several approaches, including continuous membrane processes or batch-wise application adsorbents, are use to tackle this problem. Unfortunately, these suffer from their particular drawbacks, such as low permeance disposal saturated adsorbents. However, combination could constitute step towards more efficient copper removal solution. Here, we present nanopaper ion-exchanger prepared cellulose nanofibrils produced fibre sludge, paper industry waste stream, for efficient, aqueous solutions. This comprises phosphorylated that were processed into nanopapers by papermaking. The performance membranes was determined with respect rejection and permeance. It shown new type capable rejecting ions during filtration process adsorption. Results suggest functional groups on surface contribute adsorption greater extent than phosphate within bulk nanopaper. Moreover, demonstrated those ion-exchangers be regenerated reused presence calcium ions, capacity only slightly reduced.