Pilot-scale integrated process for the treatment of dry-spun acrylic fiber manufacturing wastewater - Archive ouverte HAL Access content directly
Journal Articles Desalination and Water Treatment Year : 2015

Pilot-scale integrated process for the treatment of dry-spun acrylic fiber manufacturing wastewater

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.
Fichier principal
Vignette du fichier
Tu_20619.pdf (940.38 Ko) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

hal-01684164 , version 1 (03-10-2018)

Identifiers

Cite

Xiang Tu, Yonghui Song, Zhiyong Tian, Bin Li, Wang Xin, et al.. Pilot-scale integrated process for the treatment of dry-spun acrylic fiber manufacturing wastewater. Desalination and Water Treatment, 2015, 54 (7), pp.2015-2022. ⟨10.1080/19443994.2014.893206⟩. ⟨hal-01684164⟩
226 View
162 Download

Altmetric

Share

Gmail Facebook X LinkedIn More