A novel storage driven granular post denitrification process: Long-term effects of volume reduction on phosphate recovery
Anoxic granular biomass with enhanced biological phosphorus (P) removal was used in a post-denitrification configuration to concentrate P in wastewater. The study examined the use of anoxic granules to facilitate application of volume reduction to create a P-enriched stream (>100 mg-P/L). The...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Published: |
Elsevier BV
2019
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| Online Access: | http://hdl.handle.net/20.500.11937/72940 |
| _version_ | 1848762882071724032 |
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| author | Salehi, S. Cheng, K. Heitz, Anna Ginige, M. |
| author_facet | Salehi, S. Cheng, K. Heitz, Anna Ginige, M. |
| author_sort | Salehi, S. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Anoxic granular biomass with enhanced biological phosphorus (P) removal was used in a post-denitrification configuration to concentrate P in wastewater. The study examined the use of anoxic granules to facilitate application of volume reduction to create a P-enriched stream (>100 mg-P/L). The results indicated the importance of maintaining a food to microorganism (F/M) ratio of ~0.124 g-COD/g-MLSS.d to achieve P and nitrogen (N) removal close to 100%. While granulation required a short settling time and a high-volume exchange ratio, biomass wasting was essential to control the F/M ratio to maintain a suitable microbial diversity and abundance. Diversity and abundance were also impacted by volume reduction, but the effect of this was marginal compared with the effect of decreasing F/M ratio. Furthermore, a decrease in the F/M ratio enhanced sedimentation (SVI5decreased from 55.5 to 32.0 mL/g-MLSS) but decreased dewaterability (capillary suction time increased from 15.5 s to 19.4 s). Recovery of P as a concentrated liquor had minimal impact on the bacterial diversity. |
| first_indexed | 2025-11-14T10:54:37Z |
| format | Journal Article |
| id | curtin-20.500.11937-72940 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:54:37Z |
| publishDate | 2019 |
| publisher | Elsevier BV |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-729402019-06-24T23:46:21Z A novel storage driven granular post denitrification process: Long-term effects of volume reduction on phosphate recovery Salehi, S. Cheng, K. Heitz, Anna Ginige, M. Anoxic granular biomass with enhanced biological phosphorus (P) removal was used in a post-denitrification configuration to concentrate P in wastewater. The study examined the use of anoxic granules to facilitate application of volume reduction to create a P-enriched stream (>100 mg-P/L). The results indicated the importance of maintaining a food to microorganism (F/M) ratio of ~0.124 g-COD/g-MLSS.d to achieve P and nitrogen (N) removal close to 100%. While granulation required a short settling time and a high-volume exchange ratio, biomass wasting was essential to control the F/M ratio to maintain a suitable microbial diversity and abundance. Diversity and abundance were also impacted by volume reduction, but the effect of this was marginal compared with the effect of decreasing F/M ratio. Furthermore, a decrease in the F/M ratio enhanced sedimentation (SVI5decreased from 55.5 to 32.0 mL/g-MLSS) but decreased dewaterability (capillary suction time increased from 15.5 s to 19.4 s). Recovery of P as a concentrated liquor had minimal impact on the bacterial diversity. 2019 Journal Article http://hdl.handle.net/20.500.11937/72940 10.1016/j.cej.2018.08.139 Elsevier BV restricted |
| spellingShingle | Salehi, S. Cheng, K. Heitz, Anna Ginige, M. A novel storage driven granular post denitrification process: Long-term effects of volume reduction on phosphate recovery |
| title | A novel storage driven granular post denitrification process: Long-term effects of volume reduction on phosphate recovery |
| title_full | A novel storage driven granular post denitrification process: Long-term effects of volume reduction on phosphate recovery |
| title_fullStr | A novel storage driven granular post denitrification process: Long-term effects of volume reduction on phosphate recovery |
| title_full_unstemmed | A novel storage driven granular post denitrification process: Long-term effects of volume reduction on phosphate recovery |
| title_short | A novel storage driven granular post denitrification process: Long-term effects of volume reduction on phosphate recovery |
| title_sort | novel storage driven granular post denitrification process: long-term effects of volume reduction on phosphate recovery |
| url | http://hdl.handle.net/20.500.11937/72940 |