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Mansour Ghaderpoori - One of the best experts on this subject based on the ideXlab platform.

  • Removal of pollutants (COD, TSS, and NO3−) from textile effluent using Gambusia fish and Phragmites australis in constructed wetlands
    Environmental Geochemistry and Health, 2019
    Co-Authors: Nasim Saharimoghaddam, Mohamadreza Massoudinejad, Mansour Ghaderpoori
    Abstract:

    In developing countries, the discharge of polluted effluents into the environment has caused environmental problems. For this purpose, constructed wetlands are attracting great concern owing to their low cost and less operation and maintenance requirements. The main aim of this work was to study the effectiveness of constructed wetlands utilizing Phragmites australis plants and Gambusia fish in the treatment of textile effluent. The constructed wetlands are located in the eastern part of a wastewater treatment plant near a grit chamber unit. This research was carried out in four polyethene rectangular tanks with a capacity of 80 L. The tanks were filled to about 20% with sand with a porosity of 48% and the diameter of the gravel bed used in the horizontal sub-surface flow unit varied between 5 and 25 mm. The results of different tanks showed the highest and lowest removal efficiencies of chemical oxygen demand (COD) were in the tanks containing Phragmites australis/Gambusia fish and Phragmites australis, respectively. The best tank for the removal of total suspended solids (TSS) was the tank containing the Phragmites australis and the Gambusia fish. In the tank containing the Phragmites australis plants, the removal efficiency of NO3−, COD, and TSS was in the range of 40–70, 68–72, and 49–71%, respectively. The maximum increase of nitrate, approximately 78%, was observed in tank 2, which contained only fish. In the control tank, the removal efficiency of NO3−, COD, and TSS was in the range of 0–10, 10–18, and 15–25%, respectively. The results of this study showed that if these systems were properly designed and operated, they could be used to treat various wastewaters, especially in developing countries.

  • Removal of pollutants (COD, TSS, and NO 3 − ) from textile effluent using Gambusia fish and Phragmites australis in constructed wetlands
    Environmental geochemistry and health, 2018
    Co-Authors: Nasim Saharimoghaddam, Mohamadreza Massoudinejad, Mansour Ghaderpoori
    Abstract:

    In developing countries, the discharge of polluted effluents into the environment has caused environmental problems. For this purpose, constructed wetlands are attracting great concern owing to their low cost and less operation and maintenance requirements. The main aim of this work was to study the effectiveness of constructed wetlands utilizing Phragmites australis plants and Gambusia fish in the treatment of textile effluent. The constructed wetlands are located in the eastern part of a wastewater treatment plant near a grit chamber unit. This research was carried out in four polyethene rectangular tanks with a capacity of 80 L. The tanks were filled to about 20% with sand with a porosity of 48% and the diameter of the gravel bed used in the horizontal sub-surface flow unit varied between 5 and 25 mm. The results of different tanks showed the highest and lowest removal efficiencies of chemical oxygen demand (COD) were in the tanks containing Phragmites australis/Gambusia fish and Phragmites australis, respectively. The best tank for the removal of total suspended solids (TSS) was the tank containing the Phragmites australis and the Gambusia fish. In the tank containing the Phragmites australis plants, the removal efficiency of NO3−, COD, and TSS was in the range of 40–70, 68–72, and 49–71%, respectively. The maximum increase of nitrate, approximately 78%, was observed in tank 2, which contained only fish. In the control tank, the removal efficiency of NO3−, COD, and TSS was in the range of 0–10, 10–18, and 15–25%, respectively. The results of this study showed that if these systems were properly designed and operated, they could be used to treat various wastewaters, especially in developing countries.

Nasim Saharimoghaddam - One of the best experts on this subject based on the ideXlab platform.

  • Removal of pollutants (COD, TSS, and NO3−) from textile effluent using Gambusia fish and Phragmites australis in constructed wetlands
    Environmental Geochemistry and Health, 2019
    Co-Authors: Nasim Saharimoghaddam, Mohamadreza Massoudinejad, Mansour Ghaderpoori
    Abstract:

    In developing countries, the discharge of polluted effluents into the environment has caused environmental problems. For this purpose, constructed wetlands are attracting great concern owing to their low cost and less operation and maintenance requirements. The main aim of this work was to study the effectiveness of constructed wetlands utilizing Phragmites australis plants and Gambusia fish in the treatment of textile effluent. The constructed wetlands are located in the eastern part of a wastewater treatment plant near a grit chamber unit. This research was carried out in four polyethene rectangular tanks with a capacity of 80 L. The tanks were filled to about 20% with sand with a porosity of 48% and the diameter of the gravel bed used in the horizontal sub-surface flow unit varied between 5 and 25 mm. The results of different tanks showed the highest and lowest removal efficiencies of chemical oxygen demand (COD) were in the tanks containing Phragmites australis/Gambusia fish and Phragmites australis, respectively. The best tank for the removal of total suspended solids (TSS) was the tank containing the Phragmites australis and the Gambusia fish. In the tank containing the Phragmites australis plants, the removal efficiency of NO3−, COD, and TSS was in the range of 40–70, 68–72, and 49–71%, respectively. The maximum increase of nitrate, approximately 78%, was observed in tank 2, which contained only fish. In the control tank, the removal efficiency of NO3−, COD, and TSS was in the range of 0–10, 10–18, and 15–25%, respectively. The results of this study showed that if these systems were properly designed and operated, they could be used to treat various wastewaters, especially in developing countries.

  • Removal of pollutants (COD, TSS, and NO 3 − ) from textile effluent using Gambusia fish and Phragmites australis in constructed wetlands
    Environmental geochemistry and health, 2018
    Co-Authors: Nasim Saharimoghaddam, Mohamadreza Massoudinejad, Mansour Ghaderpoori
    Abstract:

    In developing countries, the discharge of polluted effluents into the environment has caused environmental problems. For this purpose, constructed wetlands are attracting great concern owing to their low cost and less operation and maintenance requirements. The main aim of this work was to study the effectiveness of constructed wetlands utilizing Phragmites australis plants and Gambusia fish in the treatment of textile effluent. The constructed wetlands are located in the eastern part of a wastewater treatment plant near a grit chamber unit. This research was carried out in four polyethene rectangular tanks with a capacity of 80 L. The tanks were filled to about 20% with sand with a porosity of 48% and the diameter of the gravel bed used in the horizontal sub-surface flow unit varied between 5 and 25 mm. The results of different tanks showed the highest and lowest removal efficiencies of chemical oxygen demand (COD) were in the tanks containing Phragmites australis/Gambusia fish and Phragmites australis, respectively. The best tank for the removal of total suspended solids (TSS) was the tank containing the Phragmites australis and the Gambusia fish. In the tank containing the Phragmites australis plants, the removal efficiency of NO3−, COD, and TSS was in the range of 40–70, 68–72, and 49–71%, respectively. The maximum increase of nitrate, approximately 78%, was observed in tank 2, which contained only fish. In the control tank, the removal efficiency of NO3−, COD, and TSS was in the range of 0–10, 10–18, and 15–25%, respectively. The results of this study showed that if these systems were properly designed and operated, they could be used to treat various wastewaters, especially in developing countries.

Börje Ekstam - One of the best experts on this subject based on the ideXlab platform.

Peddrick Weis - One of the best experts on this subject based on the ideXlab platform.

  • release of metals by the leaves of the salt marsh grasses spartina alterniflora and Phragmites australis
    Estuarine Coastal and Shelf Science, 2000
    Co-Authors: D. J. Burke, Judith S Weis, Peddrick Weis
    Abstract:

    The perennial grass Spartina alterniflora, common to salt marshes of eastern North America, is known to accumulate metals from marsh sediment and release them into the environment. One pathway by which Spartina alterniflora releases metals is through the excretion of metal-containing salts produced by leaf salt glands. We examined the differential release of metals by Spartina alterniflora and the invasive perennial grass Phragmites australis in an urban marsh ecosystem. Leaching rates were measured by cleaning residues off leaf surfaces under field and controlled laboratory conditions. Leaf residues and leaf tissue were analysed for copper, chromium, lead and zinc by atomic absorption spectrophotometry.Spartina alterniflora was found to release significantly more metal through leaf tissue than Phragmites australis, under both field and laboratory situations. Spartina alterniflora was also found to accumulate significantly more chromium and lead in leaves than Phragmites australis. Therefore, Spartina alterniflora can release larger quantities of metals into the marsh environment than Phragmites australis, through both excretion and leaf deposition.

Mohamadreza Massoudinejad - One of the best experts on this subject based on the ideXlab platform.

  • Removal of pollutants (COD, TSS, and NO3−) from textile effluent using Gambusia fish and Phragmites australis in constructed wetlands
    Environmental Geochemistry and Health, 2019
    Co-Authors: Nasim Saharimoghaddam, Mohamadreza Massoudinejad, Mansour Ghaderpoori
    Abstract:

    In developing countries, the discharge of polluted effluents into the environment has caused environmental problems. For this purpose, constructed wetlands are attracting great concern owing to their low cost and less operation and maintenance requirements. The main aim of this work was to study the effectiveness of constructed wetlands utilizing Phragmites australis plants and Gambusia fish in the treatment of textile effluent. The constructed wetlands are located in the eastern part of a wastewater treatment plant near a grit chamber unit. This research was carried out in four polyethene rectangular tanks with a capacity of 80 L. The tanks were filled to about 20% with sand with a porosity of 48% and the diameter of the gravel bed used in the horizontal sub-surface flow unit varied between 5 and 25 mm. The results of different tanks showed the highest and lowest removal efficiencies of chemical oxygen demand (COD) were in the tanks containing Phragmites australis/Gambusia fish and Phragmites australis, respectively. The best tank for the removal of total suspended solids (TSS) was the tank containing the Phragmites australis and the Gambusia fish. In the tank containing the Phragmites australis plants, the removal efficiency of NO3−, COD, and TSS was in the range of 40–70, 68–72, and 49–71%, respectively. The maximum increase of nitrate, approximately 78%, was observed in tank 2, which contained only fish. In the control tank, the removal efficiency of NO3−, COD, and TSS was in the range of 0–10, 10–18, and 15–25%, respectively. The results of this study showed that if these systems were properly designed and operated, they could be used to treat various wastewaters, especially in developing countries.

  • Removal of pollutants (COD, TSS, and NO 3 − ) from textile effluent using Gambusia fish and Phragmites australis in constructed wetlands
    Environmental geochemistry and health, 2018
    Co-Authors: Nasim Saharimoghaddam, Mohamadreza Massoudinejad, Mansour Ghaderpoori
    Abstract:

    In developing countries, the discharge of polluted effluents into the environment has caused environmental problems. For this purpose, constructed wetlands are attracting great concern owing to their low cost and less operation and maintenance requirements. The main aim of this work was to study the effectiveness of constructed wetlands utilizing Phragmites australis plants and Gambusia fish in the treatment of textile effluent. The constructed wetlands are located in the eastern part of a wastewater treatment plant near a grit chamber unit. This research was carried out in four polyethene rectangular tanks with a capacity of 80 L. The tanks were filled to about 20% with sand with a porosity of 48% and the diameter of the gravel bed used in the horizontal sub-surface flow unit varied between 5 and 25 mm. The results of different tanks showed the highest and lowest removal efficiencies of chemical oxygen demand (COD) were in the tanks containing Phragmites australis/Gambusia fish and Phragmites australis, respectively. The best tank for the removal of total suspended solids (TSS) was the tank containing the Phragmites australis and the Gambusia fish. In the tank containing the Phragmites australis plants, the removal efficiency of NO3−, COD, and TSS was in the range of 40–70, 68–72, and 49–71%, respectively. The maximum increase of nitrate, approximately 78%, was observed in tank 2, which contained only fish. In the control tank, the removal efficiency of NO3−, COD, and TSS was in the range of 0–10, 10–18, and 15–25%, respectively. The results of this study showed that if these systems were properly designed and operated, they could be used to treat various wastewaters, especially in developing countries.