Role of Cylindrospermopsis sp. in vertical nitrogen changes observed in tropical oxidation wastewater treatment ponds
BACKGROUND AND OBJECTIVES: As a producer within the ecological food chain, phytoplankton provides the base energy and oxygen to the environment through photosynthesis and higher tropic levels. These benefits can be applied in five consecutive nature-by-nature oxidation ponds for the treatment of com...
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GJESM Publisher
2024-01-01
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| author | M. Srichomphu O. Phewnil T. Pattamapitoon Ratcha Chaichana K. Chunkao W. Wararam N. Dampin P. Maskulrath |
| author_facet | M. Srichomphu O. Phewnil T. Pattamapitoon Ratcha Chaichana K. Chunkao W. Wararam N. Dampin P. Maskulrath |
| author_sort | M. Srichomphu |
| collection | DOAJ |
| description | BACKGROUND AND OBJECTIVES: As a producer within the ecological food chain, phytoplankton provides the base energy and oxygen to the environment through photosynthesis and higher tropic levels. These benefits can be applied in five consecutive nature-by-nature oxidation ponds for the treatment of community wastewater coming through a high density polyethylene pipeline from the Phetchaburi Municipality located at the King’s Royally Initiated Laem Phak Bia Environmental Research and Development Project, Ban Laem District, Phetchaburi Province (Universal Transverse Mercator 47P 1442725 North 617774 East). This study focuses on the vertical distribution of the phytoplankton Cylindrospermopsis sp. and its relationship with nitrogen compounds in oxidation ponds.METHODS: Samples were collected from a community wastewater treatment system at various depths (30, 60, 90, 120, and 150 centimeters) below the water surface in April 2019 between 11:00 and 13:00 hours and analyzed for their chemical and physical properties. The analysis revealed a vertical relationship between Cylindrospermopsis sp. and wastewater. In the density of phytoplankton which were collected by measuring 20 liters of water and filtered using a 36-micron plankton net, calculated and counted under a high magnification microscope, as the species are classified according the taxonomy.FINDINGS: The results of the wastewater quality were as follows: the content of suspended solids was 65–81 milligram per liter, water temperature was 31.8–33.2°C, potential of hydrogen was 8.7–9.2, total nitrogen content was 4.0–5.3 milligram per liter, ammonium content was 0.03–0.06 milligram per liter, nitrate content was 0.09–0.12 milligram per liter, total phosphorus content was 0.9–1.3 milligram per liter, and phosphate content was 0.4–0.5 milligram per liter. In the density of phytoplankton, a significant correlation was observed between the population of Cylindrospermopsis sp. and water depth (R2 = 0.9324). The number of populations at the depths of 30, 60, 90, 120, and 150 centimeters were 3.2 × 107, 1.6 × 107, 1.1 × 107, 5.5 × 107, and 1.1 × 108 cells per cubic meter, respectively.CONCLUSION: The different densities of Cylindrospermopsis sp. found at different depths throughout the treatment pond are related to the nitrogen dynamics of the water body. The results of this study revealed that organic nitrogen, including ammonium, was assimilated and converted to inorganic nutrients, which promoted the growth of other phytoplankton species. The correlation between Cylindrospermopsis sp. and total nitrogen and ammonium showed significance at R2 = 0.7268 and 0.797, respectively, with a confidence level of 0.05. Therefore, to ensure treatment effectiveness, the depth of wastewater treatment ponds should be considered during their construction because phytoplankton regulation plays an important role to maintain the overall treatment efficiency. |
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| spelling | doaj.art-c1ac8a5fb07f4e499fa5fcb9ca18af5c2023-10-14T09:34:47ZengGJESM PublisherGlobal Journal of Environmental Science and Management2383-35722383-38662024-01-0110110.22034/gjesm.2024.01.18705701Role of Cylindrospermopsis sp. in vertical nitrogen changes observed in tropical oxidation wastewater treatment pondsM. Srichomphu0O. Phewnil1T. Pattamapitoon2Ratcha Chaichana3K. Chunkao4W. Wararam5N. Dampin6P. Maskulrath7Department of Environmental Science, Faculty of Environment, Kasetsart University, Bangkok, ThailandDepartment of Environmental Science, Faculty of Environment, Kasetsart University, Bangkok, ThailandDepartment of Environmental Science, Faculty of Environment, Kasetsart University, Bangkok, ThailandDepartment of Environmental Technology and Management, Faculty of Environment, Kasetsart UniversityThe King’s Royally Initiated Laem Phak Bia Environmental Research and Development Project, Chaipattana Foundation, Ban Laem District, Phetchaburi Province, ThailandDepartment of Environmental Science, Faculty of Environment, Kasetsart University, Bangkok, ThailandDepartment of Environmental Science, Faculty of Environment, Kasetsart University, Bangkok, ThailandThe King’s Royally Initiated Laem Phak Bia Environmental Research and Development Project, Chaipattana Foundation, Ban Laem District, Phetchaburi Province, ThailandBACKGROUND AND OBJECTIVES: As a producer within the ecological food chain, phytoplankton provides the base energy and oxygen to the environment through photosynthesis and higher tropic levels. These benefits can be applied in five consecutive nature-by-nature oxidation ponds for the treatment of community wastewater coming through a high density polyethylene pipeline from the Phetchaburi Municipality located at the King’s Royally Initiated Laem Phak Bia Environmental Research and Development Project, Ban Laem District, Phetchaburi Province (Universal Transverse Mercator 47P 1442725 North 617774 East). This study focuses on the vertical distribution of the phytoplankton Cylindrospermopsis sp. and its relationship with nitrogen compounds in oxidation ponds.METHODS: Samples were collected from a community wastewater treatment system at various depths (30, 60, 90, 120, and 150 centimeters) below the water surface in April 2019 between 11:00 and 13:00 hours and analyzed for their chemical and physical properties. The analysis revealed a vertical relationship between Cylindrospermopsis sp. and wastewater. In the density of phytoplankton which were collected by measuring 20 liters of water and filtered using a 36-micron plankton net, calculated and counted under a high magnification microscope, as the species are classified according the taxonomy.FINDINGS: The results of the wastewater quality were as follows: the content of suspended solids was 65–81 milligram per liter, water temperature was 31.8–33.2°C, potential of hydrogen was 8.7–9.2, total nitrogen content was 4.0–5.3 milligram per liter, ammonium content was 0.03–0.06 milligram per liter, nitrate content was 0.09–0.12 milligram per liter, total phosphorus content was 0.9–1.3 milligram per liter, and phosphate content was 0.4–0.5 milligram per liter. In the density of phytoplankton, a significant correlation was observed between the population of Cylindrospermopsis sp. and water depth (R2 = 0.9324). The number of populations at the depths of 30, 60, 90, 120, and 150 centimeters were 3.2 × 107, 1.6 × 107, 1.1 × 107, 5.5 × 107, and 1.1 × 108 cells per cubic meter, respectively.CONCLUSION: The different densities of Cylindrospermopsis sp. found at different depths throughout the treatment pond are related to the nitrogen dynamics of the water body. The results of this study revealed that organic nitrogen, including ammonium, was assimilated and converted to inorganic nutrients, which promoted the growth of other phytoplankton species. The correlation between Cylindrospermopsis sp. and total nitrogen and ammonium showed significance at R2 = 0.7268 and 0.797, respectively, with a confidence level of 0.05. Therefore, to ensure treatment effectiveness, the depth of wastewater treatment ponds should be considered during their construction because phytoplankton regulation plays an important role to maintain the overall treatment efficiency.https://www.gjesm.net/article_705701_f13f8ef9f2babccbf5d3e091c256a302.pdfcommunity wastewatercylindrospermopsis sp., nitrogen changeoxidation pondphytoplanktontropical climate zonevertical distribution |
| spellingShingle | M. Srichomphu O. Phewnil T. Pattamapitoon Ratcha Chaichana K. Chunkao W. Wararam N. Dampin P. Maskulrath Role of Cylindrospermopsis sp. in vertical nitrogen changes observed in tropical oxidation wastewater treatment ponds Global Journal of Environmental Science and Management community wastewater cylindrospermopsis sp., nitrogen change oxidation pond phytoplankton tropical climate zone vertical distribution |
| title | Role of Cylindrospermopsis sp. in vertical nitrogen changes observed in tropical oxidation wastewater treatment ponds |
| title_full | Role of Cylindrospermopsis sp. in vertical nitrogen changes observed in tropical oxidation wastewater treatment ponds |
| title_fullStr | Role of Cylindrospermopsis sp. in vertical nitrogen changes observed in tropical oxidation wastewater treatment ponds |
| title_full_unstemmed | Role of Cylindrospermopsis sp. in vertical nitrogen changes observed in tropical oxidation wastewater treatment ponds |
| title_short | Role of Cylindrospermopsis sp. in vertical nitrogen changes observed in tropical oxidation wastewater treatment ponds |
| title_sort | role of cylindrospermopsis sp in vertical nitrogen changes observed in tropical oxidation wastewater treatment ponds |
| topic | community wastewater cylindrospermopsis sp., nitrogen change oxidation pond phytoplankton tropical climate zone vertical distribution |
| url | https://www.gjesm.net/article_705701_f13f8ef9f2babccbf5d3e091c256a302.pdf |
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