Effect of co-substrate on degradation of benzothiazole in MEC

Huang, Huandi, Ding, Jie, Liu, Xianshu, Xie, Guojun and Song, Dihui (2016) Effect of co-substrate on degradation of benzothiazole in MEC. Journal of Harbin Institute of Technology (New Series), 23 5: 62-68. doi:10.11916/j.issn.1005-9113.2016.05.009


Author Huang, Huandi
Ding, Jie
Liu, Xianshu
Xie, Guojun
Song, Dihui
Title Effect of co-substrate on degradation of benzothiazole in MEC
Journal name Journal of Harbin Institute of Technology (New Series)   Check publisher's open access policy
ISSN 1005-9113
Publication date 2016-10-01
Sub-type Article (original research)
DOI 10.11916/j.issn.1005-9113.2016.05.009
Open Access Status Not yet assessed
Volume 23
Issue 5
Start page 62
End page 68
Total pages 7
Place of publication Heilongjiang, China
Publisher Harbin Institute of Technology
Collection year 2017
Formatted abstract
Due to its persistence and bio-toxicity, benzothiazole (BTH) cannot be biodegraded efficiently. Recent work has shown that removal rates of biorefractory organics can be enhanced by the addition of co-substrates. In this work, ethanol, acetate, propionate and butyrate were added as co-substrates in order to promote the degradation of BTH in microbial electrolysis cell (MEC). By probing the changes in degradation rates of BTH in the presence of different co-substrates, it was observed that all the four co-substrates can enhance the BTH degradation in MEC, both the efficiency (EBTH) and the rate (RBTH). It was also found that acetate is more effective than others, which made the degradation efficiency of BTH up to 90% with acetate-C at 350 mg/L (measuring by the carbon content of co-substrate, the same below), within 6 h and the degradation rate of BTH arrived 0.001 2/(mg·h). The microbacteria in MEC have also been influenced by different co-substrates. This metabolism of the co-substrates enables the microbacteria on anode to generate ATP and thus grow to ensure the microbacteria activity. Therefore, this work showed that the addition of co-substrates such as acetate can be a novel and efficient approach for improving the elimination of BTH from wastewaters by MEC system.
Keyword Acetate
Benzothiazole
Co-substrate
MEC
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
Advanced Water Management Centre Publications
 
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