Simultaneous removal of nitrate and phosphate from wastewater by siderite based autotrophic denitrification
Yang, Y; Chen, T; Zhang, X; Qing, C; Wang, J; Yue, Z; Liu, H; Yang, Z
| HERO ID | 4538877 |
|---|---|
| In Press | No |
| Year | 2018 |
| Title | Simultaneous removal of nitrate and phosphate from wastewater by siderite based autotrophic denitrification |
| Authors | Yang, Y; Chen, T; Zhang, X; Qing, C; Wang, J; Yue, Z; Liu, H; Yang, Z |
| Journal | Chemosphere |
| Volume | 199 |
| Page Numbers | 130-137 |
| Abstract | The potential of simultaneous removal of nitrate and phosphate from wastewater by a single anaerobic Fe(II) oxidizing denitrifiers (the strain PXL1) was assessed using siderite biofilters under different influent TOC concentrations and hydraulic retention times (HRTs) over a 160-day trial. Higher TOC concentrations promoted NO3- removal, while there was no significant influence on PO43- removal. Lowering down HRT from 10 h to 5 h did not significantly influence NO3- and PO43- removal. The NO3- removal performance and microbial community structure in the biofilters indicated that NO3- was reduced to N2 by both strain PXL1 and heterotrophic Acidovorax delafieldii. Iron content analysis of the used siderite along the biofilters showed that PO43- removal was improved by the bio-oxidation of Fe(II) in siderite to Fe(III) via the strain PXL1. The coexistence of the strain PXL1 and natural siderite in nitrate-contaminated aquifers provides a practical technology for in situ remediation of nutrient contaminated waterbodies. |
| Doi | 10.1016/j.chemosphere.2018.02.014 |
| Pmid | 29433026 |
| Wosid | WOS:000428973200016 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |