Respirometric assessment of biodegradation for acrylic fibre-based carpet finishing wastewaters

Gunayy Yildiz*, G. Insel, E. U. Cokgor, Dorhon Orthon

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

12 Citations (Scopus)

Abstract

The paper evaluates biodegradation characteristics of wastewaters generated from acrylic fibre-based carpet processing and manufacturing. It involves detailed characterisation, respirometric modelling and kinetic description of dyeing and softening wastewater streams and the composite effluent. The wastewaters exhibit different COD content and fractionation. The resulting composite effluent has a total COD of 775 mgL-1, predominantly soluble and with a biodegradable fraction of 86%. In respirometric studies, the OUR profiles can only be calibrated with a dual hydrolysis model with rates significantly slower compared to domestic sewage and other textile plant effluents. Kinetic information derived from the experiments is applied for the conceptual evaluation of the treatability of the composite wastewater using two different continuous-flow activated sludge configurations.

Original languageEnglish
Title of host publicationWaste Management Problems in Agro-Industires 2006
EditorsD. Orhon, R. Tasli, O. Karahan, G.E. Zengin
Pages99-106
Number of pages8
Edition10
DOIs
Publication statusPublished - 2007

Publication series

NameWater Science and Technology
Number10
Volume55
ISSN (Print)0273-1223

Keywords

  • Acrylic fibre
  • Carpet manufacturing
  • COD fractionation
  • Modelling
  • Textile wastewaters

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