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Chemical and Biochemical Engineering Quarterly, Vol. 29 No. 3, 2015.

Izvorni znanstveni članak

https://doi.org/10.15255/CABEQ.2014.2033

Influence of Di-n-butyl phthalate (DnBP) on the Characteristics of Anaerobic Granular Sludge in an IC Reactor

Y. W. Ma ; a)College of Environment and Energy, South China University of Technology, Guangzhou, 510640, China; d)The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou,
M. Z. Huang ; b)Department of Water Resources and Environment, Sun Yat-sen University, Guangzhou 510275, China;e)Guangdong Provincial Key Laboratory of Urbanization and Geo-simulation, School of Geography and Planning, Sun Yat-sen University, Guangzhou 510725, China
J. Q. Wan ; a)College of Environment and Energy, South China University of Technology, Guangzhou, 510640, China;c)State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640, China
Y. M. Chen ; College of Environment and Energy, South China University of Technology, Guangzhou, 510640, China

Puni tekst: engleski pdf 684 Kb

str. 485-490

preuzimanja: 555

citiraj

Sažetak

The characteristics of anaerobic granular sludge in the internal circulation (IC) anaerobic reactor and influence of particles by Di-n-butyl phthalate (DnBP) at normal temperature were conducted. The results show that, with HRT decreasing, the percentage of granular particles smaller than 0.3 millimeters and in the range of 2.0 and 3.0 millimeters had decreased while those between 0.9 and 2.0 mm increased significantly. For the extracellular polymeric substances (EPS), the protein content increased more, and the polysaccharide content had no significant changes; SS and VSS appeared to decline after an initial ascent; Specific methanogenic activity (SMA) of granular sludge firstly reduced significantly, and then gradually stabilized. At toxicity and recovery experiment, SMA and content of coenzyme both reduced sharply with the DnBP concentration increasing. When the concentration of DnBP was higher than 1.2 g L–1, the SMA and content of coenzyme F420 virtually reached zero. Regardless of changes in the activity of the sludge, the tendency of SMA was consistent with coenzyme F420. Therefore, DnBP had an inhibiting effect on the anaerobic granular sludge.

Ključne riječi

internal circulation anaerobic reactors; anaerobic granular sludge; granular diameter; setting velocity; specific methanogenic activity; content of coenzyme F420

Hrčak ID:

147014

URI

https://hrcak.srce.hr/147014

Datum izdavanja:

14.10.2015.

Posjeta: 1.082 *