We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Pilot-scale integrated process for the treatment of dry-spun acrylic fiber manufacturing wastewater.
- Authors
Tu, Xiang; Song, Yonghui; Tian, Zhiyong; Li, Bin; Xin, Wang; Brosillon, Stephan; Manero, Marie-Helene
- Abstract
An integrated process of membrane bioreactor (MBR)—advanced ozonation (AO)—biological aerated filters (BAFs) was developed for the treatment of dry-spun acrylic fiber manufacturing wastewater in pilot scale. The results show that the removal efficiencies of chemical oxygen demand (COD) and ammonia nitrogen (-N) could exceed 90.0 and 95.0%, respectively. The COD concentration in the total effluent was maintained at 80.0–100 mg/L, and the-N concentration was below 10.0 mg/L. Both the MBR and BAFs could adapt to the influent of practical wastewater after a period of sludge acclimatization. The removal efficiencies of COD and-N in the MBR were maintained at 65.8–71.9 and 59.4–67.5%, respectively. Excitation–emission matrix spectroscopy confirmed that most of the easy degradable organics were removed in the MBR process. After the AO treatment, COD concentration in the wastewater was reduced by 106–157 mg/L and the biodegradability was enhanced. Simultaneous nitrification–denitrification was performed in the biofilm of BAFs, and the removal efficiency of total nitrogen was in the range of 58.2–71.6% after the entire integrated process.
- Subjects
ACRYLIC fibers; WASTEWATER treatment; POLLUTANTS; SPECTROMETRY; CHEMICAL oxygen demand
- Publication
Desalination & Water Treatment, 2015, Vol 54, Issue 7, p2015
- ISSN
1944-3994
- Publication type
Article
- DOI
10.1080/19443994.2014.893206