Modeling cometabolism of hexavalent chromium by iron reducing bacteria in tertiary substrate system
Abstract In this study, a bacterial strain Serratia sp. was employed for the reduction of synthetically prepared different concentration of Cr(VI) solution (10, 25, 40, 50 and 100 mg/L). Cometabolism study have been carried out in the binary substrate system as well as in the tertiary substrate syst...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2021-05-01
|
| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-021-90137-2 |
| _version_ | 1818751131820490752 |
|---|---|
| author | Shivangi Upadhyay Alok Sinha |
| author_facet | Shivangi Upadhyay Alok Sinha |
| author_sort | Shivangi Upadhyay |
| collection | DOAJ |
| description | Abstract In this study, a bacterial strain Serratia sp. was employed for the reduction of synthetically prepared different concentration of Cr(VI) solution (10, 25, 40, 50 and 100 mg/L). Cometabolism study have been carried out in the binary substrate system as well as in the tertiary substrate system. The results revealed that when glucose was added as a co-substrate, at low Cr(VI) concentration, complete reduction was achieved followed by increased biomass growth, but when Cr(VI) concentration was increased to 100 mg/L, the reduction decline to 93%. But in presence of high carbon iron filings (HCIF) as co-substrate even at higher Cr(VI) concentration i.e. 100 mg/L, 100% reduction was achieved and the cell growth continued till 124 h. The study was illustrated via Monod growth kinetic model for tertiary substrate system and the kinetic parameters revealed that the HCIF and glucose combination showed least inhibition to hexavalent chromium reduction by Serratia sp. |
| first_indexed | 2024-12-18T04:30:42Z |
| format | Article |
| id | doaj.art-589db9a7a8a441128c4d6bc437e34186 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-18T04:30:42Z |
| publishDate | 2021-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-589db9a7a8a441128c4d6bc437e341862022-12-21T21:20:59ZengNature PortfolioScientific Reports2045-23222021-05-0111111010.1038/s41598-021-90137-2Modeling cometabolism of hexavalent chromium by iron reducing bacteria in tertiary substrate systemShivangi Upadhyay0Alok Sinha1Department of Environmental Science & Engineering, Indian Institute of Technology (ISM) DhanbadDepartment of Environmental Science & Engineering, Indian Institute of Technology (ISM) DhanbadAbstract In this study, a bacterial strain Serratia sp. was employed for the reduction of synthetically prepared different concentration of Cr(VI) solution (10, 25, 40, 50 and 100 mg/L). Cometabolism study have been carried out in the binary substrate system as well as in the tertiary substrate system. The results revealed that when glucose was added as a co-substrate, at low Cr(VI) concentration, complete reduction was achieved followed by increased biomass growth, but when Cr(VI) concentration was increased to 100 mg/L, the reduction decline to 93%. But in presence of high carbon iron filings (HCIF) as co-substrate even at higher Cr(VI) concentration i.e. 100 mg/L, 100% reduction was achieved and the cell growth continued till 124 h. The study was illustrated via Monod growth kinetic model for tertiary substrate system and the kinetic parameters revealed that the HCIF and glucose combination showed least inhibition to hexavalent chromium reduction by Serratia sp.https://doi.org/10.1038/s41598-021-90137-2 |
| spellingShingle | Shivangi Upadhyay Alok Sinha Modeling cometabolism of hexavalent chromium by iron reducing bacteria in tertiary substrate system Scientific Reports |
| title | Modeling cometabolism of hexavalent chromium by iron reducing bacteria in tertiary substrate system |
| title_full | Modeling cometabolism of hexavalent chromium by iron reducing bacteria in tertiary substrate system |
| title_fullStr | Modeling cometabolism of hexavalent chromium by iron reducing bacteria in tertiary substrate system |
| title_full_unstemmed | Modeling cometabolism of hexavalent chromium by iron reducing bacteria in tertiary substrate system |
| title_short | Modeling cometabolism of hexavalent chromium by iron reducing bacteria in tertiary substrate system |
| title_sort | modeling cometabolism of hexavalent chromium by iron reducing bacteria in tertiary substrate system |
| url | https://doi.org/10.1038/s41598-021-90137-2 |
| work_keys_str_mv | AT shivangiupadhyay modelingcometabolismofhexavalentchromiumbyironreducingbacteriaintertiarysubstratesystem AT aloksinha modelingcometabolismofhexavalentchromiumbyironreducingbacteriaintertiarysubstratesystem |