IASON - Intelligent activated sludge operated by nanotechnology - Hydrogel microcarriers in wastewater treatment

E. Fleit, Z. Melicz, D. Sándor, M. Zrínyi, G. Filipcsei, K. László, I. Dékány, Z. Király

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)


Performance of biological wastewater treatment depends to a large extent on mechanical strength, size distribution, permeability and other textural properties of the activated sludge flocs. A novel approach was developed in applying synthetic polymer materials to organize floc architecture instead of spontaneously formed activated sludge floc. Developed microcarrier polymer materials were used in our experiments to mitigate technological goals. Preliminary results suggest that the PVA-PAA (polyvinyl alcohol-polyacrylic acid copolymer) is a feasible choice for skeleton material replacing "traditional" activated sludge floc. Use of PVA-PAA hydrogel material as microreactors and methods for biofilm formation of wastewater bacteria on the carrier material are described. Laboratory scale experimental results with microscopic size bioreactors and their potential application for simultaneous nitrification and denitrification are presented.

Original languageEnglish
Title of host publicationColloids for Nano- and Biotechnology
EditorsZoltan Horvolgyi, Eva Kiss
Number of pages9
Publication statusPublished - Dec 1 2008

Publication series

NameProgress in Colloid and Polymer Science
ISSN (Print)0340-255X



  • Activated sludge
  • Biofilm development
  • Hydrogels

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Polymers and Plastics
  • Colloid and Surface Chemistry
  • Materials Chemistry

Cite this

Fleit, E., Melicz, Z., Sándor, D., Zrínyi, M., Filipcsei, G., László, K., Dékány, I., & Király, Z. (2008). IASON - Intelligent activated sludge operated by nanotechnology - Hydrogel microcarriers in wastewater treatment. In Z. Horvolgyi, & E. Kiss (Eds.), Colloids for Nano- and Biotechnology (pp. 209-217). (Progress in Colloid and Polymer Science; Vol. 135). https://doi.org/10.1007/2882-2008-092