Intensification of wastewater treatment with polymer fiber-based biofilm carriers

Laura Jurecska, Katalin Barkács, E. Kiss, Gergo Gyulai, Tamás Felföldi, Balázs Töro, Róbert Kovács, G. Záray

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Biofilm containing fix-bed systems are frequently applied for intensifying biological treatment in wastewater purification. In these operational units a lot of different biofilm carriers have been used and tested; among them, however, the polymer fiber-based materials are barely investigated. The authors studied four carriers: three types of polypropylene (PP) fibers and a polyester (PES) fiber were compared relating their physical-chemical characteristics and biofilm colonization properties. For the physical-chemical characterization surfactants release, wettability, methylene blue bromophenol blue and protein (bovine serum albumin) adsorption were measured as well as the surface charges of the biofilm carriers were determined by zeta potential examinations. Colonization experiments were carried out in a pilot plant scale biological municipal wastewater treatment system consisting of eight cascade reactors for 18 days. Each of the four tested fibers were placed into the reactors, and biofilm colonization was followed by measuring the dry biomass content and TTC (triphenyl tetrazolium chloride) enzyme activity of the biofilms adhered to the polymer fibers. During the colonization experiments pH, chemical oxygen demand (COD), concentration of total suspended solids (TSS), various nitrogenous compounds and dissolved oxygen were also monitored in the water phase of the reactors. Among the four different fibers one of the PP carriers turned to be the most favorable in colonization tests. This carrier, having surface and wetting properties differing from the other ones colonized the maximum biofilm mass, and the biofilm grown on this fiber had also the highest total enzyme activity all along the purification process, both in organic material degrading and in nitrifying reactors.

Original languageEnglish
Pages (from-to)108-114
Number of pages7
JournalMicrochemical Journal
Volume107
DOIs
Publication statusPublished - Mar 2013

Fingerprint

Biofilms
Wastewater treatment
Polymers
Fibers
Polypropylenes
Enzyme activity
Purification
Wetting
Bromphenol Blue
Polyesters
Methylene Blue
Chemical oxygen demand
Zeta potential
Dissolved oxygen
Surface charge
Bovine Serum Albumin
Pilot plants
Surface-Active Agents
Chlorides
Biomass

Keywords

  • Biofilm carrier
  • Colonization
  • Polymer-fiber
  • Wastewater

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy

Cite this

Intensification of wastewater treatment with polymer fiber-based biofilm carriers. / Jurecska, Laura; Barkács, Katalin; Kiss, E.; Gyulai, Gergo; Felföldi, Tamás; Töro, Balázs; Kovács, Róbert; Záray, G.

In: Microchemical Journal, Vol. 107, 03.2013, p. 108-114.

Research output: Contribution to journalArticle

Jurecska, Laura ; Barkács, Katalin ; Kiss, E. ; Gyulai, Gergo ; Felföldi, Tamás ; Töro, Balázs ; Kovács, Róbert ; Záray, G. / Intensification of wastewater treatment with polymer fiber-based biofilm carriers. In: Microchemical Journal. 2013 ; Vol. 107. pp. 108-114.
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