Recovery of nutrients from wastewater
Eutrophication is a natural occurring process, due to presence of nutrients in the environment. When nutrients are present in excess, process of eutrophication accelerates, and causes environmental problems. Through recovery of nutrients from wastewater, nutrients disposed by humans into the environ...
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| Format: | Final Year Project (FYP) |
| Language: | English |
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2010
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| Online Access: | http://hdl.handle.net/10356/39623 |
| _version_ | 1811688856015077376 |
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| author | Toh, Swee Siang. |
| author2 | Volodymyr Ivanov |
| author_facet | Volodymyr Ivanov Toh, Swee Siang. |
| author_sort | Toh, Swee Siang. |
| collection | NTU |
| description | Eutrophication is a natural occurring process, due to presence of nutrients in the environment. When nutrients are present in excess, process of eutrophication accelerates, and causes environmental problems. Through recovery of nutrients from wastewater, nutrients disposed by humans into the environment could be reduced, thus preventing the acceleration of eutrophication. Methods for nutrient removal from wastewater are readily available, but methods for nutrient recovery have only matured in recent years. In this research report, recovery of ammonium and phosphate from Singapore’s wastewater through precipitation of struvite and ammoniojarosite were explored. Through experiments, optimal conditions for precipitation of struvite from wastewater were determined, with 90% phosphate recovery and 10% ammonium recovery achieved under such conditions. For ammoniojarosite, no previous research was done with the aim of recovering ammonium from wastewater. When experiments were done under recommended conditions for manufacturing synthetic ammoniojarosite, with wastewater as a source of ammonium, 16% ammonium recovery was achieved. These results show the potential of nutrient recovery from Singapore’s wastewater that will ultimately lead to lower nutrient loading to treatment plants and possible economic gains. |
| first_indexed | 2024-10-01T05:38:51Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/39623 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:38:51Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | ntu-10356/396232023-03-03T17:09:52Z Recovery of nutrients from wastewater Toh, Swee Siang. Volodymyr Ivanov School of Civil and Environmental Engineering DRNTU::Engineering::Environmental engineering::Water treatment Eutrophication is a natural occurring process, due to presence of nutrients in the environment. When nutrients are present in excess, process of eutrophication accelerates, and causes environmental problems. Through recovery of nutrients from wastewater, nutrients disposed by humans into the environment could be reduced, thus preventing the acceleration of eutrophication. Methods for nutrient removal from wastewater are readily available, but methods for nutrient recovery have only matured in recent years. In this research report, recovery of ammonium and phosphate from Singapore’s wastewater through precipitation of struvite and ammoniojarosite were explored. Through experiments, optimal conditions for precipitation of struvite from wastewater were determined, with 90% phosphate recovery and 10% ammonium recovery achieved under such conditions. For ammoniojarosite, no previous research was done with the aim of recovering ammonium from wastewater. When experiments were done under recommended conditions for manufacturing synthetic ammoniojarosite, with wastewater as a source of ammonium, 16% ammonium recovery was achieved. These results show the potential of nutrient recovery from Singapore’s wastewater that will ultimately lead to lower nutrient loading to treatment plants and possible economic gains. Bachelor of Engineering (Environmental Engineering) 2010-06-01T09:11:38Z 2010-06-01T09:11:38Z 2010 2010 Final Year Project (FYP) http://hdl.handle.net/10356/39623 en Nanyang Technological University 53 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Environmental engineering::Water treatment Toh, Swee Siang. Recovery of nutrients from wastewater |
| title | Recovery of nutrients from wastewater |
| title_full | Recovery of nutrients from wastewater |
| title_fullStr | Recovery of nutrients from wastewater |
| title_full_unstemmed | Recovery of nutrients from wastewater |
| title_short | Recovery of nutrients from wastewater |
| title_sort | recovery of nutrients from wastewater |
| topic | DRNTU::Engineering::Environmental engineering::Water treatment |
| url | http://hdl.handle.net/10356/39623 |
| work_keys_str_mv | AT tohsweesiang recoveryofnutrientsfromwastewater |