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

Tu, Xiang and Song, Yonghui and Tian, Zhiyong and Li, Bin and Xin, Wang and Brosillon, Stéphan and Manero, Marie-Hélène Pilot-scale integrated process for the treatment of dry-spun acrylic fiber manufacturing wastewater. (2015) Desalination and Water Treatment, 54 (7). 2015-2022. ISSN 1944-3994

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Official URL: https://doi.org/10.1080/19443994.2014.893206

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.

Item Type:Article
HAL Id:hal-01684164
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Chinese Research Academy of Environmental Sciences - CRAES (CHINA)
Other partners > Ecole Nationale Supérieure de Chimie de Montpellier - ENSCM (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > Université de Montpellier 2 (FRANCE)
Other partners > Université de Montpellier (FRANCE)
Laboratory name:
Funders:
National Key Scientific and Technological Project for Water Pollution Control and Management - Sino-French International Scientific and Technological Cooperation
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Deposited By: Loetitia MOYA
Deposited On:03 Oct 2018 10:09

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