Bioaugmentation treatment of a novel microbial consortium for degradation of organic pollutants in tannery wastewater under a full-scale oxic process

Yu Cheng, Kangmin Chon, Xianghao Ren, Yingying Kou, Moon Hyun Hwang, Kyu Jung Chae

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


Tannery wastewater contains a variety of complex organic compounds that is usually refractory for biodegradation. In this study, the research objective was to couple novel beneficial microorganisms to oxic processes to degrade organic pollutants at an industrial-scale tannery wastewater treatment plant. The characteristics of the conversion and biodegradation of organic material are also discussed. Although several negatively influencing factors (e.g., chromium) for the removal of organic material were present in this treatment system, an average chemical oxygen demand (COD) removal efficiency of 95.2% was achieved during the 328-day operation. Moreover, the results of a Fourier transform infrared spectroscopy and three-dimensional excitation and emission matrix fluorescence spectra were consistent, showing that organic pollutants (e.g., protein-like, polysaccharide-like, and humic acid-like materials) showed great conversion and synchronous degradation under biotreatment. Humic acid-like and protein-like organic matter were the main components of the influent and effluent organic material, respectively. This was attributed to inoculation of a special composition of beneficial microorganisms with abundant functional genes related to the degradation of organic material.

Original languageEnglish
Article number108131
JournalBiochemical Engineering Journal
Publication statusPublished - 2021 Nov

Bibliographical note

Funding Information:
This work was funded by Open Research Fund Program of Key Laboratory of Urban Stormwater System and Water Environment ( Beijing University of Civil Engineering and Architecture ), Ministry of Education, and supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2020R1A4A1019568 ). This work was also supported by BUCEA and DJU International IAR Cooperation Center.

Publisher Copyright:
© 2021 Elsevier B.V.


  • Beneficial microorganisms
  • Biotreatment
  • Organic material
  • Tannery wastewater

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering
  • Environmental Engineering
  • Biomedical Engineering


Dive into the research topics of 'Bioaugmentation treatment of a novel microbial consortium for degradation of organic pollutants in tannery wastewater under a full-scale oxic process'. Together they form a unique fingerprint.

Cite this