Format

Send to

Choose Destination
Bioresour Technol. 2018 Sep;264:154-162. doi: 10.1016/j.biortech.2018.05.063. Epub 2018 May 18.

Treatment of industrial dyeing wastewater with a pilot-scale strengthened circulation anaerobic reactor.

Author information

1
Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, PR China.
2
Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, PR China.
3
Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, PR China; Technical University and Mining Academy Freiberg, Germany.
4
Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, PR China. Electronic address: yanbiaoliu@dhu.edu.cn.

Abstract

We developed a pilot-scale strengthened circulation anaerobic (SCA) reactor (with an effective volume of 27 m3) and applied to the treatment of industrial textile wastewater. The treatment performance and the working mechanism were studied systematically and the key operational parameters were identified. The results demonstrated that a stable and excellent chemical oxygen demand removal efficiency of 62.7% and a maximum chromaticity removal efficiency of 73.5% were obtained at an optimal reflux ratio of 4. Interestingly, the bio-degradability was evidently improved after the SCA reactor treatment. The high throughput sequencing analysis indicated that the diversity of the bacteria or archaebacteria before the treatment was slightly higher than that after the treatment, which may be attributed to the production of certain toxic intermediates and/or characteristic pollutants during the treatment. Enzyme activity test and COD removal show that numerous microorganisms still maintained active in the anaerobic granular sludge even in a severe environment.

KEYWORDS:

Biodiversity; Industrial printing and dyeing wastewater; Performance; Pilot-scale anaerobic reactor

PMID:
29803085
DOI:
10.1016/j.biortech.2018.05.063
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Elsevier Science
Loading ...
Support Center