Conductive Polyaniline Enhanced Decolorization of Azo Dyes in Anaerobic Wastewater Treatment
Yating Liao, Ying Wang, Lingfeng Ouyang, Yanlan Dong, Jie Zhou, Qian Hu and Bin Qiu
1 Beijing Key Laboratory for Source Control Technology of Water Pollution, Beijing Forestry University, Beijing, 100083, China
2 College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China
Abstract
The polyaniline (PANI) was synthesized by chemical oxidation and was conductive media to improve the anaerobic sludge to decolorize the azo dye-containing wastewater in this study. The effect of carbon sources, COD concentration and PANI dosage on the decolorization and degradation performance of anaerobic sludge was investigated. The optimized carbon source for decolorization of azo dye by anaerobic sludge was the sucrose in our research. The color removal can be increased by ~20% from the anaerobic system adding with PANI material due to the accelerated degradation of the carbon source by the PANI. Based on the decolorization, the azo dye-containing wastewater treatment could achieve an optimal effect when PANI of 400 mg/L was added in the anaerobic sludge. Finally, the effect of the additional PANI on the microorganism communities in the anaerobic sludge was also investigated.
Publication details
Received: 04 Sep 2021
Revised: 15 Nov 2021
Accepted: 27 Nov 2021
Published online: 04 Dec 2021
Article type:
Research Paper
DOI:
10.30919/esfaf584
Volume:
6
Page:
35-42
Citation:
ES Food & Agroforestry, 2021, 6, 35-42
Permissions:
Copyright
Number of downloads:
11644
Citation Information:
9
Description:
In this study, polyaniline was used as the conductive media to improve decolorization of azo dye fro....
In this study, polyaniline was used as the conductive media to improve decolorization of azo dye from anaerobic wastewater treatment.
Supplementary Information:
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