Simultaneous removal of nitrate and phosphate from wastewater using solid waste from factory
Abstract Phosphorous and nitrogen concentration, respectively, between 20–100 and 500–1000 μg/L can cause eutrophication. Thus, developing efficient low-cost removal method is important to protect the aquatic environment. The aim of this study is to investigate simultaneous nitrate and phosphate ads...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2019-02-01
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| Series: | Applied Water Science |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/s13201-019-0906-z |
| _version_ | 1819278269786095616 |
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| author | Yifru Waktole Berkessa Seid Tiku Mereta Fekadu Fufa Feyisa |
| author_facet | Yifru Waktole Berkessa Seid Tiku Mereta Fekadu Fufa Feyisa |
| author_sort | Yifru Waktole Berkessa |
| collection | DOAJ |
| description | Abstract Phosphorous and nitrogen concentration, respectively, between 20–100 and 500–1000 μg/L can cause eutrophication. Thus, developing efficient low-cost removal method is important to protect the aquatic environment. The aim of this study is to investigate simultaneous nitrate and phosphate adsorption capacity of solid waste residue (SWR) generated from Awash Melkassa Aluminium Sulphate and Sulphuric Acid Factory. Batch adsorption experiments were conducted to evaluate the effect of various parameters on the simultaneous removal of nitrate and phosphate ions. The experimental results show that the equilibrium time was attained within 90 min, while the optimum pH and adsorbent dose were found to be 7 and 20 g/L, respectively. The pseudo-second-order equation with R 2 values 0.99 and 1, respectively, fits to the adsorption kinetics of nitrate and phosphate. Moreover, isotherm analysis shows that adsorption of nitrate and phosphate was better modeled with Freundlich and Langmuir isotherms with R 2 0.99 and 0.98 for phosphate and 0.99 and 0.96 for nitrate, respectively. Results of regeneration of the spent adsorbent show nearly 50% of the adsorbed phosphate can be desorbed with NaOH, while that of nitrate is 99.75%. Under optimum conditions, SWR can potentially remove phosphate from wastewater. However, the adsorbent is not suitable to remove nitrate ion from wastewater. |
| first_indexed | 2024-12-24T00:09:20Z |
| format | Article |
| id | doaj.art-8d4c3594aa0f460e88705f39c29588a0 |
| institution | Directory Open Access Journal |
| issn | 2190-5487 2190-5495 |
| language | English |
| last_indexed | 2024-12-24T00:09:20Z |
| publishDate | 2019-02-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Applied Water Science |
| spelling | doaj.art-8d4c3594aa0f460e88705f39c29588a02022-12-21T17:24:55ZengSpringerOpenApplied Water Science2190-54872190-54952019-02-019211010.1007/s13201-019-0906-zSimultaneous removal of nitrate and phosphate from wastewater using solid waste from factoryYifru Waktole Berkessa0Seid Tiku Mereta1Fekadu Fufa Feyisa2Department of Environmental Sciences and Technology, College of Health Sciences, Jimma UniversityDepartment of Environmental Sciences and Technology, College of Health Sciences, Jimma UniversityCivil and Environmental Engineering School, Jimma Institute of Technology, Jimma UniversityAbstract Phosphorous and nitrogen concentration, respectively, between 20–100 and 500–1000 μg/L can cause eutrophication. Thus, developing efficient low-cost removal method is important to protect the aquatic environment. The aim of this study is to investigate simultaneous nitrate and phosphate adsorption capacity of solid waste residue (SWR) generated from Awash Melkassa Aluminium Sulphate and Sulphuric Acid Factory. Batch adsorption experiments were conducted to evaluate the effect of various parameters on the simultaneous removal of nitrate and phosphate ions. The experimental results show that the equilibrium time was attained within 90 min, while the optimum pH and adsorbent dose were found to be 7 and 20 g/L, respectively. The pseudo-second-order equation with R 2 values 0.99 and 1, respectively, fits to the adsorption kinetics of nitrate and phosphate. Moreover, isotherm analysis shows that adsorption of nitrate and phosphate was better modeled with Freundlich and Langmuir isotherms with R 2 0.99 and 0.98 for phosphate and 0.99 and 0.96 for nitrate, respectively. Results of regeneration of the spent adsorbent show nearly 50% of the adsorbed phosphate can be desorbed with NaOH, while that of nitrate is 99.75%. Under optimum conditions, SWR can potentially remove phosphate from wastewater. However, the adsorbent is not suitable to remove nitrate ion from wastewater.http://link.springer.com/article/10.1007/s13201-019-0906-zSimultaneous removalBatch adsorptionChemisorptionSolid waste |
| spellingShingle | Yifru Waktole Berkessa Seid Tiku Mereta Fekadu Fufa Feyisa Simultaneous removal of nitrate and phosphate from wastewater using solid waste from factory Applied Water Science Simultaneous removal Batch adsorption Chemisorption Solid waste |
| title | Simultaneous removal of nitrate and phosphate from wastewater using solid waste from factory |
| title_full | Simultaneous removal of nitrate and phosphate from wastewater using solid waste from factory |
| title_fullStr | Simultaneous removal of nitrate and phosphate from wastewater using solid waste from factory |
| title_full_unstemmed | Simultaneous removal of nitrate and phosphate from wastewater using solid waste from factory |
| title_short | Simultaneous removal of nitrate and phosphate from wastewater using solid waste from factory |
| title_sort | simultaneous removal of nitrate and phosphate from wastewater using solid waste from factory |
| topic | Simultaneous removal Batch adsorption Chemisorption Solid waste |
| url | http://link.springer.com/article/10.1007/s13201-019-0906-z |
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