Removal of nutrients from stormwater using a mixed biochar-alum sludge adsorbent
A series of batch tests was conducted to remove nutrients (NO3-N, NO2-N, NH3-N and PO4-P) of varying concentrations (1-5 mg/l) from synthetic stormwater using an adsorbent mixture of Eucalyptus Wandoo Biochar (8g) and alum sludge (2g) of 2.36 mm diameter. Test results confirmed the effectiveness of...
| Main Authors: | , , |
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| Format: | Conference Paper |
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Engineers Australia
2018
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| Online Access: | http://hdl.handle.net/20.500.11937/68152 |
| _version_ | 1848761756479913984 |
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| author | Alam, M. Anwar, Faisal Heitz, A. |
| author_facet | Alam, M. Anwar, Faisal Heitz, A. |
| author_sort | Alam, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | A series of batch tests was conducted to remove nutrients (NO3-N, NO2-N, NH3-N and PO4-P) of varying concentrations (1-5 mg/l) from synthetic stormwater using an adsorbent mixture of Eucalyptus Wandoo Biochar (8g) and alum sludge (2g) of 2.36 mm diameter. Test results confirmed the effectiveness of these mixed adsorbents for removing NO2-N (92-100%), NH3-N (87-97%) and PO4-P (>90%) from aqueous phase but not effective for NO3-N (<1% removal). The percentage removal was found to increase with increasing initial concentration. Adsorption isotherm showed that the NO2-N adsorption followed both Langmuir and Freundlich models (R2= 0.99) while NH3-N and PO4-P followed only Langmuir (R2=0.95-0.97). The adsorption intensities (RL) were found to be in the range 0< RL< 1 showing favourable adsorption behaviour. The biochar and alum sludge mix may be used as a potential adsorbent in treating stormwater. |
| first_indexed | 2025-11-14T10:36:44Z |
| format | Conference Paper |
| id | curtin-20.500.11937-68152 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:36:44Z |
| publishDate | 2018 |
| publisher | Engineers Australia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-681522020-05-29T06:56:40Z Removal of nutrients from stormwater using a mixed biochar-alum sludge adsorbent Alam, M. Anwar, Faisal Heitz, A. A series of batch tests was conducted to remove nutrients (NO3-N, NO2-N, NH3-N and PO4-P) of varying concentrations (1-5 mg/l) from synthetic stormwater using an adsorbent mixture of Eucalyptus Wandoo Biochar (8g) and alum sludge (2g) of 2.36 mm diameter. Test results confirmed the effectiveness of these mixed adsorbents for removing NO2-N (92-100%), NH3-N (87-97%) and PO4-P (>90%) from aqueous phase but not effective for NO3-N (<1% removal). The percentage removal was found to increase with increasing initial concentration. Adsorption isotherm showed that the NO2-N adsorption followed both Langmuir and Freundlich models (R2= 0.99) while NH3-N and PO4-P followed only Langmuir (R2=0.95-0.97). The adsorption intensities (RL) were found to be in the range 0< RL< 1 showing favourable adsorption behaviour. The biochar and alum sludge mix may be used as a potential adsorbent in treating stormwater. 2018 Conference Paper http://hdl.handle.net/20.500.11937/68152 Engineers Australia restricted |
| spellingShingle | Alam, M. Anwar, Faisal Heitz, A. Removal of nutrients from stormwater using a mixed biochar-alum sludge adsorbent |
| title | Removal of nutrients from stormwater using a mixed biochar-alum sludge adsorbent |
| title_full | Removal of nutrients from stormwater using a mixed biochar-alum sludge adsorbent |
| title_fullStr | Removal of nutrients from stormwater using a mixed biochar-alum sludge adsorbent |
| title_full_unstemmed | Removal of nutrients from stormwater using a mixed biochar-alum sludge adsorbent |
| title_short | Removal of nutrients from stormwater using a mixed biochar-alum sludge adsorbent |
| title_sort | removal of nutrients from stormwater using a mixed biochar-alum sludge adsorbent |
| url | http://hdl.handle.net/20.500.11937/68152 |