Inhibition of microbial activity of activated sludge by ammonia in leachate

Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/2432

Title:	Inhibition of microbial activity of activated sludge by ammonia in leachate
Authors:	Li, XZ Zhao, QL
Issue Date:	Dec-1999
Source:	Environment international, Dec. 1999, v. 25, no. 8, p. 961-968
Abstract:	Leachate samples were collected from the West New Territory Landfill (WENT), Hong Kong, and characterized in the laboratory. The analytical results confirmed that it has a typical nature of aged leachate with a low BOD?COD ratio of 0.22 and a high strength of ammonia-nitrogen around 5 g/L. A lab-scale study was conducted to investigate the inhibition of microbial activity of the activated sludge. In the first test, glucose-based synthetic wastewater was used in two parallel reactors. The experimental results demonstrated that COD removal declined from 95.1 to 79.1% and the dehydrogenase activity of the sludge decreased from 11.04 to 4.22 £gg TF/mg mixed liquor suspended solids (MLSS), when the ammonia-nitrogen concentration increased from 50 mg/L to 800 mg/L progressively. The re
Keywords:	Dehydrogenase Mixed liquor suspended solids Specific oxygen uptake rate (SOUR)
Publisher:	Pergamon (Elsevier)
Journal:	Environment international
ISSN:	0160-4120
DOI:	10.1016/S0160-4120(99)00068-9
Rights:	Environment lnternational ? 1999 Elsevier Science Ltd. The journal web site is located at http://www.sciencedirect.com.
Appears in Collections:	Journal/Magazine Article

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Status	open access
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