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- Title
Treatment of Cr(VI) contaminated water with Pannonibacter phragmitetus BB.
- Authors
Wang, Yangyang; Peng, Bing; Yang, Zhihui; Tang, Chongjian; Chen, Yuehui; Liao, Qi; Liao, Yingping
- Abstract
Pannonibacter phragmitetus BB was utilized to treat hexavalent chromium [Cr(VI)] contaminated water. Cr(VI) concentration of the contaminated water (pH 10.85) was 534 mg/L. With the inoculum size ranging from 1 to 20 %, P. phragmitetus BB completely reduced Cr(VI) within 27 h when the initial medium concentration exceeded 20 g/L. The lag time of bio-reduction by Cr(VI)-induced cells was 24 h, which was longer than the non-Cr(VI)-induced cells. Under the agitation condition, an obvious bio-reduction lag phase existed and Cr(VI) was completely reduced within 24 h. However, the lag phase was not observed under the static condition, Cr(VI) was reduced continuously after inoculation and Cr(VI) was completely reduced after 27 h incubation. The main chromium components after Cr(VI) reduction were Cr(OH), CrO and CrCl. The results of this study are fundamentally significant to the application of P. phragmitetus BB in the treatment of Cr(VI) contaminated water.
- Subjects
HEXAVALENT chromium; WATER pollution; HYDROXIDE minerals; OIL spills; WATER quality
- Publication
Environmental Earth Sciences, 2014, Vol 71, Issue 10, p4333
- ISSN
1866-6280
- Publication type
Article
- DOI
10.1007/s12665-013-2827-8