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BioMed Research International
Volume 2018, Article ID 1897280, 6 pages
https://doi.org/10.1155/2018/1897280
Research Article

The Effects of Different Oxytetracycline and Copper Treatments on the Performance of Anaerobic Digesters and the Dynamics of Bacterial Communities

1Northeast Key Laboratory of Arable Land Conservation and Improvement, Ministry of Agriculture, National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Land and Environment, Shenyang Agricultural University, Shenyang 110866, China
2College of Energy and Environment, Shenyang Aerospace University, Shenyang 110136, China

Correspondence should be addressed to Guangcai Zhang; nc.ude.uays@gnahziacgnaug and Weiyun Wang; nc.ude.uas@ywwyhtac

Received 24 October 2017; Revised 27 April 2018; Accepted 21 May 2018; Published 5 July 2018

Academic Editor: Zhang Lei

Copyright © 2018 Yun Zhang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Oxytetracycline and copper are the common residues in animal manures. Meanwhile, anaerobic digestion is considered as a clean biotechnology for the disposal of animal manures. In this paper, the performance of anaerobic digesters and the dynamics of bacterial communities under the different treatments of oxytetracycline and copper were discussed. The parameters of methane production and pH values were studied to reflect the performance of anaerobic digester. Results showed that the changes of methane production and pH values were not obvious compared with the control. This means that the treatments of oxytetracycline and copper almost have no effects on the performance of anaerobic digesters. This phenomenon might be due to the chelation reaction between oxytetracycline and copper. This chelation reaction might reduce the toxicity of oxytetracycline. The study on the dynamics of bacterial communities was based on the polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) method. Results indicated that the bacterial communities had significant differences under the different treatments of oxytetracycline and copper. Uncultured Bacteroidetes bacterium (CU922272.1) and uncultured Bacteroidetes bacterium (AB780945.1) showed adaptability to the different treatments of oxytetracycline and copper and were the dominant bacterial communities.