Efficiency of horizontal roughing filter in removing nitrate, phosphate and chemical oxygen demand from effluent of waste stabilization pond
Background: The effective size of the end grain of horizontal roughing filters (HRFs) is larger than 2 mm. This study aimed to examine the efficiency of HRFs in removing nitrate, phosphate, and chemical oxygen demand (COD) from effluent of a wastewater stabilization pond. Methods: This experimental...
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| Format: | Article |
| Language: | English |
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Kerman University of Medical Sciences
2015-06-01
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| Series: | Environmental Health Engineering and Management |
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| Online Access: | http://ehemj.com/browse.php?a_id=74&sid=1&slc_lang=en |
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| author | Seyed Mostafa Khezri Gharib Majidi Hossein Jafari Mansoorian Mohsen Ansari Farideh Atabi Taha Tohidi Mogaddam Nahid Rashtchi |
| author_facet | Seyed Mostafa Khezri Gharib Majidi Hossein Jafari Mansoorian Mohsen Ansari Farideh Atabi Taha Tohidi Mogaddam Nahid Rashtchi |
| author_sort | Seyed Mostafa Khezri |
| collection | DOAJ |
| description | Background: The effective size of the end grain of horizontal roughing filters (HRFs) is larger than 2 mm. This study aimed to examine the efficiency of HRFs in removing nitrate, phosphate, and chemical oxygen demand (COD) from effluent of a wastewater stabilization pond.
Methods: This experimental study was conducted in 2013. The pilot project was transferred to the Karaj wastewater treatment plant (stabilization pond), and the installation, equipping, and start-up of the system began using an effluent treatment plant. Sampling was done from March to August in 3 rates, 0.5, 1 and 1.5 m/h, and included simultaneous sampling from inlet and outlet filtering to determine the concentrations of nitrate, phosphate, and COD.
Results: At filtration rates of 0.5, 1, and 1.5 m/h, the average nitrate removal equaled 25%, 32%, and 34%, respectively, average phosphate removal equaled 29%, 26%, and 28%, respectively, and the average COD removal at filtration rates of 0.5, 1, and 1.5 m/h equaled 62%, 66%, and 68%, respectively. Outlet values of phosphate and nitrate were lower than the standards set by the Environmental Standards Organization (ESO) (P < 0.05).
Conclusion: According to the results of this study, the HRF function was approximately adequate in COD removal, but its efficiency in nitrate and phosphate removal was lower. |
| first_indexed | 2024-12-13T17:33:01Z |
| format | Article |
| id | doaj.art-c7f223d08e124a6faf8ae543dd0883b7 |
| institution | Directory Open Access Journal |
| issn | 2423-3765 2423-4311 |
| language | English |
| last_indexed | 2024-12-13T17:33:01Z |
| publishDate | 2015-06-01 |
| publisher | Kerman University of Medical Sciences |
| record_format | Article |
| series | Environmental Health Engineering and Management |
| spelling | doaj.art-c7f223d08e124a6faf8ae543dd0883b72022-12-21T23:37:00ZengKerman University of Medical SciencesEnvironmental Health Engineering and Management2423-37652423-43112015-06-01228792Efficiency of horizontal roughing filter in removing nitrate, phosphate and chemical oxygen demand from effluent of waste stabilization pondSeyed Mostafa Khezri0Gharib Majidi1Hossein Jafari Mansoorian2Mohsen Ansari3Farideh Atabi4Taha Tohidi Mogaddam5Nahid Rashtchi6Associate Professor, Department of Environmental Engineering, School of Environment and Energy, Science and Research Branch, Islamic Azad University, Tehran, IranMSc in Environmental Health Engineering, School of Public Health, Qom University of Medical Sciences, Qom, IranLecturer, Environmental Health Engineering Research Center, Department of Environmental Health, Kerman University of Medical Sciences, Kerman, IranMSc in Environmental Health Engineering, School of Public Health, Qom University of Medical Sciences, Qom, IranAssistant Professor, Department of Environmental Engineering, School of Environment and Energy, Science and Research Branch, Islamic Azad University, Tehran, IranMSc in Environmental Engineering, Science and Research Branch, Islamic Azad University, Tehran, IranMSc in Environmental Engineering–Water and Wastewater, Islamic Azad University, Western Tehran Branch, Tehran, IranBackground: The effective size of the end grain of horizontal roughing filters (HRFs) is larger than 2 mm. This study aimed to examine the efficiency of HRFs in removing nitrate, phosphate, and chemical oxygen demand (COD) from effluent of a wastewater stabilization pond. Methods: This experimental study was conducted in 2013. The pilot project was transferred to the Karaj wastewater treatment plant (stabilization pond), and the installation, equipping, and start-up of the system began using an effluent treatment plant. Sampling was done from March to August in 3 rates, 0.5, 1 and 1.5 m/h, and included simultaneous sampling from inlet and outlet filtering to determine the concentrations of nitrate, phosphate, and COD. Results: At filtration rates of 0.5, 1, and 1.5 m/h, the average nitrate removal equaled 25%, 32%, and 34%, respectively, average phosphate removal equaled 29%, 26%, and 28%, respectively, and the average COD removal at filtration rates of 0.5, 1, and 1.5 m/h equaled 62%, 66%, and 68%, respectively. Outlet values of phosphate and nitrate were lower than the standards set by the Environmental Standards Organization (ESO) (P < 0.05). Conclusion: According to the results of this study, the HRF function was approximately adequate in COD removal, but its efficiency in nitrate and phosphate removal was lower.http://ehemj.com/browse.php?a_id=74&sid=1&slc_lang=enWastewater stabilization pondHorizontal roughing filterNitratePhosphateChemical oxygen demand |
| spellingShingle | Seyed Mostafa Khezri Gharib Majidi Hossein Jafari Mansoorian Mohsen Ansari Farideh Atabi Taha Tohidi Mogaddam Nahid Rashtchi Efficiency of horizontal roughing filter in removing nitrate, phosphate and chemical oxygen demand from effluent of waste stabilization pond Environmental Health Engineering and Management Wastewater stabilization pond Horizontal roughing filter Nitrate Phosphate Chemical oxygen demand |
| title | Efficiency of horizontal roughing filter in removing nitrate, phosphate and chemical oxygen demand from effluent of waste stabilization pond |
| title_full | Efficiency of horizontal roughing filter in removing nitrate, phosphate and chemical oxygen demand from effluent of waste stabilization pond |
| title_fullStr | Efficiency of horizontal roughing filter in removing nitrate, phosphate and chemical oxygen demand from effluent of waste stabilization pond |
| title_full_unstemmed | Efficiency of horizontal roughing filter in removing nitrate, phosphate and chemical oxygen demand from effluent of waste stabilization pond |
| title_short | Efficiency of horizontal roughing filter in removing nitrate, phosphate and chemical oxygen demand from effluent of waste stabilization pond |
| title_sort | efficiency of horizontal roughing filter in removing nitrate phosphate and chemical oxygen demand from effluent of waste stabilization pond |
| topic | Wastewater stabilization pond Horizontal roughing filter Nitrate Phosphate Chemical oxygen demand |
| url | http://ehemj.com/browse.php?a_id=74&sid=1&slc_lang=en |
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