Journal article
Toxic response of Nitrosomonas europaea to copper in inorganic medium and wastewater
Water research (Oxford), Vol.22(9), pp.1117-1127
1988
DOI: 10.1016/0043-1354(88)90006-1
Abstract
A study was conducted to examine potential toxicity of copper(II) and its species in nitrification processes monitoring the oxidation of ammonia by
Nitrosomonas europaea. The copper toxicity data were analyzed in terms of chemical speciation computed by a chemical equilibrium model. Increased toxicity with increasing ammonia concentration was observed for both the inorganic medium and the wastewater, that is analogous to the result reported for a full-scale nitrifying activated sludge plant. The 50% inhibition concentration (IC
50) of total copper(II) decreased from 0.5 to 0.01 mg l
−1 Cu(II) as the total ammonia concentration was raised from 3 to 23 mg l
−1 as N. On the basis of statistical correlation, the increasing copper toxicity with increasing ammonia is apparent, which is further explained by the formation of copper-ammine complexes. The toxic response of
N. europaea observed in the inorganic medium was defined as a function of the logarithmic activities of copper-ammine complexes.
Details
- Title: Subtitle
- Toxic response of Nitrosomonas europaea to copper in inorganic medium and wastewater
- Creators
- Chikashi SatoSolomon W LeungJerald L Schnoor
- Resource Type
- Journal article
- Publication Details
- Water research (Oxford), Vol.22(9), pp.1117-1127
- Publisher
- Elsevier Ltd
- DOI
- 10.1016/0043-1354(88)90006-1
- ISSN
- 0043-1354
- eISSN
- 1879-2448
- Language
- English
- Date published
- 1988
- Academic Unit
- Occupational and Environmental Health; Civil and Environmental Engineering
- Record Identifier
- 9983997974102771
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