Small scale Direct Potable Reuse (DPR) project for a remote area
An Advanced Water Treatment Plant (AWTP) for potable water recycling in Davis Station Antarctica was trialed using secondary effluent at Selfs Point in Hobart, Tasmania, for nine months. The trials demonstrated the reliability of performance of a seven barrier treatment process consisting of ozonati...
| Main Authors: | , , , , , , , , , , , , |
|---|---|
| Format: | Journal Article |
| Published: |
2017
|
| Online Access: | http://hdl.handle.net/20.500.11937/50655 |
| _version_ | 1848758513326620672 |
|---|---|
| author | Zhang, J. Duke, M. Northcott, K. Packer, M. Allinson, M. Allinson, G. Kadokami, K. Tan, J. Allard, Sebastien Croué, Jean-Philippe Knight, A. Scales, P. Gray, S. |
| author_facet | Zhang, J. Duke, M. Northcott, K. Packer, M. Allinson, M. Allinson, G. Kadokami, K. Tan, J. Allard, Sebastien Croué, Jean-Philippe Knight, A. Scales, P. Gray, S. |
| author_sort | Zhang, J. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | An Advanced Water Treatment Plant (AWTP) for potable water recycling in Davis Station Antarctica was trialed using secondary effluent at Selfs Point in Hobart, Tasmania, for nine months. The trials demonstrated the reliability of performance of a seven barrier treatment process consisting of ozonation, ceramic microfiltration (MF), biologically activated carbon, reverse osmosis, ultra-violet disinfection, calcite contactor and chlorination. The seven treatment barriers were required to meet the high log removal values (LRV) required for pathogens in small systems during disease outbreak, and on-line verification of process performance was required for operation with infrequent operator attention. On-line verification of pathogen LRVs, a low turbidity filtrate of approximately 0.1 NTU (Nephelometric Turbidity Unit), no long-term fouling and no requirement for clean-in-place (CIP) was achieved with the ceramic MF. A pressure decay test was also reliably implemented on the reverse osmosis system to achieve a 2 LRV for protozoa, and this barrier required only 2-3 CIP treatments each year. The ozonation process achieved 2 LRV for bacteria and virus with no requirement for an ozone residual, provided the ozone dose was > 11.7 mg/L. Extensive screening using multi-residue gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-mass spectrometry (LC-MS) database methods that can screen for more than 1200 chemicals found that few chemicals pass through the barriers to the final product and rejected (discharge) water streams. The AWTP plant required 1.93 kWh/m3 when operated in the mode required for Davis Station and was predicted to require 1.27 kWh/m3 if scaled up to 10 ML/day. The AWTP will be shipped to Davis Station for further trials before possible implementation for water recycling. The process may have application in other small remote communities. |
| first_indexed | 2025-11-14T09:45:11Z |
| format | Journal Article |
| id | curtin-20.500.11937-50655 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:45:11Z |
| publishDate | 2017 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-506552017-09-13T15:40:42Z Small scale Direct Potable Reuse (DPR) project for a remote area Zhang, J. Duke, M. Northcott, K. Packer, M. Allinson, M. Allinson, G. Kadokami, K. Tan, J. Allard, Sebastien Croué, Jean-Philippe Knight, A. Scales, P. Gray, S. An Advanced Water Treatment Plant (AWTP) for potable water recycling in Davis Station Antarctica was trialed using secondary effluent at Selfs Point in Hobart, Tasmania, for nine months. The trials demonstrated the reliability of performance of a seven barrier treatment process consisting of ozonation, ceramic microfiltration (MF), biologically activated carbon, reverse osmosis, ultra-violet disinfection, calcite contactor and chlorination. The seven treatment barriers were required to meet the high log removal values (LRV) required for pathogens in small systems during disease outbreak, and on-line verification of process performance was required for operation with infrequent operator attention. On-line verification of pathogen LRVs, a low turbidity filtrate of approximately 0.1 NTU (Nephelometric Turbidity Unit), no long-term fouling and no requirement for clean-in-place (CIP) was achieved with the ceramic MF. A pressure decay test was also reliably implemented on the reverse osmosis system to achieve a 2 LRV for protozoa, and this barrier required only 2-3 CIP treatments each year. The ozonation process achieved 2 LRV for bacteria and virus with no requirement for an ozone residual, provided the ozone dose was > 11.7 mg/L. Extensive screening using multi-residue gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-mass spectrometry (LC-MS) database methods that can screen for more than 1200 chemicals found that few chemicals pass through the barriers to the final product and rejected (discharge) water streams. The AWTP plant required 1.93 kWh/m3 when operated in the mode required for Davis Station and was predicted to require 1.27 kWh/m3 if scaled up to 10 ML/day. The AWTP will be shipped to Davis Station for further trials before possible implementation for water recycling. The process may have application in other small remote communities. 2017 Journal Article http://hdl.handle.net/20.500.11937/50655 10.3390/w9020094 unknown |
| spellingShingle | Zhang, J. Duke, M. Northcott, K. Packer, M. Allinson, M. Allinson, G. Kadokami, K. Tan, J. Allard, Sebastien Croué, Jean-Philippe Knight, A. Scales, P. Gray, S. Small scale Direct Potable Reuse (DPR) project for a remote area |
| title | Small scale Direct Potable Reuse (DPR) project for a remote area |
| title_full | Small scale Direct Potable Reuse (DPR) project for a remote area |
| title_fullStr | Small scale Direct Potable Reuse (DPR) project for a remote area |
| title_full_unstemmed | Small scale Direct Potable Reuse (DPR) project for a remote area |
| title_short | Small scale Direct Potable Reuse (DPR) project for a remote area |
| title_sort | small scale direct potable reuse (dpr) project for a remote area |
| url | http://hdl.handle.net/20.500.11937/50655 |