The effects of PO43- removal from aqueous solution with varied concentrations of metal oxides in steel slag filter system
High amount of orthophosphate will accelerate the growth of autotrophs and eutrophication will occur. This phenomenon decreases the water quality and as a result may increase the cost of water treatment for drinking water. The overabundance of orthophosphate occurs when untreated or inadequately-tre...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Penerbit Universiti Sains Malaysia
2018
|
| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/3944/ http://eprints.uthm.edu.my/3944/1/AJ%202018%20%2848%29.pdf |
| _version_ | 1848888153989971968 |
|---|---|
| author | Hamdan, Rafidah Mohd Arshad, Nur Ain Nazirah Ahmad, Siti Zu Nurain |
| author_facet | Hamdan, Rafidah Mohd Arshad, Nur Ain Nazirah Ahmad, Siti Zu Nurain |
| author_sort | Hamdan, Rafidah |
| building | UTHM Institutional Repository |
| collection | Online Access |
| description | High amount of orthophosphate will accelerate the growth of autotrophs and eutrophication will occur. This phenomenon decreases the water quality and as a result may increase the cost of water treatment for drinking water. The overabundance of orthophosphate occurs when untreated or inadequately-treated wastewater from domestic and industrial activities is released into water bodies. Conventional treatment has been developed to treat wastewater. However, it is not effective for phosphorus removal, hence, high-cost advanced treatment is needed to remove phosphorus. Thus, alternative low-cost treatments for phosphorus removal are needed. Therefore, this study was conducted to understand and investigate the mechanisms of phosphorus removal using two different setups of steel slag filter, Set 1 for high Fe and Set 2 for high Ca. The study was operated at different pH values of 3, 5, 7, 9 and 11 under aerated and unaerated conditions. The samples of steel slag from 12 filters that has been run for three months for each set were semi-quantitatively analysed using scanning electron microscope-energy dispersive X-ray (SEM-EDX) to identify the adsorption of phosphate ion on the surface of the steel slag. The results of SEM-EDX studies showed that adsorption mechanism of phosphate removal takes place on the surface of the steel slag. The precipitates in the steel slag filters were collected and analysed for X-ray diffraction (XRD) for chemical compound identification and the precipitates were confirmed to be Fe3O4, a precursor of iron phosphate related compound. |
| first_indexed | 2025-11-15T20:05:46Z |
| format | Article |
| id | uthm-3944 |
| institution | Universiti Tun Hussein Onn Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T20:05:46Z |
| publishDate | 2018 |
| publisher | Penerbit Universiti Sains Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | uthm-39442021-11-22T07:28:52Z http://eprints.uthm.edu.my/3944/ The effects of PO43- removal from aqueous solution with varied concentrations of metal oxides in steel slag filter system Hamdan, Rafidah Mohd Arshad, Nur Ain Nazirah Ahmad, Siti Zu Nurain TD429.5-480.7 Water purification. Water treatment and conditioning. Saline water conversion High amount of orthophosphate will accelerate the growth of autotrophs and eutrophication will occur. This phenomenon decreases the water quality and as a result may increase the cost of water treatment for drinking water. The overabundance of orthophosphate occurs when untreated or inadequately-treated wastewater from domestic and industrial activities is released into water bodies. Conventional treatment has been developed to treat wastewater. However, it is not effective for phosphorus removal, hence, high-cost advanced treatment is needed to remove phosphorus. Thus, alternative low-cost treatments for phosphorus removal are needed. Therefore, this study was conducted to understand and investigate the mechanisms of phosphorus removal using two different setups of steel slag filter, Set 1 for high Fe and Set 2 for high Ca. The study was operated at different pH values of 3, 5, 7, 9 and 11 under aerated and unaerated conditions. The samples of steel slag from 12 filters that has been run for three months for each set were semi-quantitatively analysed using scanning electron microscope-energy dispersive X-ray (SEM-EDX) to identify the adsorption of phosphate ion on the surface of the steel slag. The results of SEM-EDX studies showed that adsorption mechanism of phosphate removal takes place on the surface of the steel slag. The precipitates in the steel slag filters were collected and analysed for X-ray diffraction (XRD) for chemical compound identification and the precipitates were confirmed to be Fe3O4, a precursor of iron phosphate related compound. Penerbit Universiti Sains Malaysia 2018 Article PeerReviewed text en http://eprints.uthm.edu.my/3944/1/AJ%202018%20%2848%29.pdf Hamdan, Rafidah and Mohd Arshad, Nur Ain Nazirah and Ahmad, Siti Zu Nurain (2018) The effects of PO43- removal from aqueous solution with varied concentrations of metal oxides in steel slag filter system. Journal of Physical Science, 29 (3). 71–80. ISSN 1675-3402 https://doi.org/10.21315/jps2018.29.s3.9 |
| spellingShingle | TD429.5-480.7 Water purification. Water treatment and conditioning. Saline water conversion Hamdan, Rafidah Mohd Arshad, Nur Ain Nazirah Ahmad, Siti Zu Nurain The effects of PO43- removal from aqueous solution with varied concentrations of metal oxides in steel slag filter system |
| title | The effects of PO43- removal from aqueous solution with varied concentrations of metal oxides in steel slag filter system |
| title_full | The effects of PO43- removal from aqueous solution with varied concentrations of metal oxides in steel slag filter system |
| title_fullStr | The effects of PO43- removal from aqueous solution with varied concentrations of metal oxides in steel slag filter system |
| title_full_unstemmed | The effects of PO43- removal from aqueous solution with varied concentrations of metal oxides in steel slag filter system |
| title_short | The effects of PO43- removal from aqueous solution with varied concentrations of metal oxides in steel slag filter system |
| title_sort | effects of po43- removal from aqueous solution with varied concentrations of metal oxides in steel slag filter system |
| topic | TD429.5-480.7 Water purification. Water treatment and conditioning. Saline water conversion |
| url | http://eprints.uthm.edu.my/3944/ http://eprints.uthm.edu.my/3944/ http://eprints.uthm.edu.my/3944/1/AJ%202018%20%2848%29.pdf |