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Technical University of Crete
Technical University of Crete
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| URI | http://purl.tuc.gr/dl/dias/5FE40C2E-C430-4354-90D1-3A6CFF21E1C2 | - |
| Identifier | http://www.sciencedirect.com/science/article/pii/S0304389405006436 | - |
| Identifier | https://doi.org/10.1016/j.jhazmat.2005.10.023 | - |
| Language | en | - |
| Extent | 6 pages | en |
| Title | Effects of tri-valent (Cr(III)) and hexa-valent (Cr(VI)) chromium on the growth of activated sludge | en |
| Creator | Romanos Pavlos | en |
| Creator | Gikas Petros | en |
| Creator | Γκικας Πετρος | el |
| Publisher | Elsevier | en |
| Content Summary | The effects of Cr(VI) and Cr(III) species on the activated sludge growth rate have been assessed for a batch growth system, for a range of chromium concentration between 0 and 320 mg l−1. Cr(VI) was found to stimulate microbial growth for concentrations up to about 25 mg l−1, exhibiting maximum growth stimulation at 10 mg l−1, whilst the lethal dose was found to be between 80 and 160 mg l−1. On the other hand, Cr(III) was also found to stimulate microbial growth for concentrations up to about 15 mg l−1, (with a maximum stimulation concentration at 10 mg l−1), whilst the lethal dose was found to lie between 160 and 320 mg l−1. The results indicate that Cr(VI) is more toxic to biomass at relatively high concentrations (higher than 70 mg l−1) whilst it has a more pronounced growth stimulation effect at relatively smaller concentrations (less than 25 mg l−1), compared with Cr(III). | en |
| Type of Item | Peer-Reviewed Journal Publication | en |
| Type of Item | Δημοσίευση σε Περιοδικό με Κριτές | el |
| License | http://creativecommons.org/licenses/by/4.0/ | en |
| Date of Item | 2015-11-17 | - |
| Date of Publication | 2006 | - |
| Subject | Chromium | en |
| Subject | Heavy metals | en |
| Subject | Activated sludge | en |
| Subject | Toxicity | en |
| Subject | Inhibition | en |
| Subject | Stimulation | en |
| Bibliographic Citation | P. Gikas and P. Romanos, "Effects of tri-valent (Cr(III)) and hexa-valent (Cr(VI)) chromium on the growth of activated sludge", J. Hazard. Mater., vol. 133, no. 1-3, pp. 212-217, May 2006. doi:10.1016/j.jhazmat.2005.10.023 | en |
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