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Abstract
The use of macrophytes plants for treatment of wastewater for nutrient removable is addressed A stuoy was conducted to ascertain the nutrient reduction potential in freshwater aquaculture using Lemna gibba (Duckweed) Experiments were conducted with plastic trays of dimensions 34 27 y 6 cm Wastewater from freshwater aquaculture was collected and experimented under different dilutions. Nutrient removal and productivity of the Lemna gibba system were studied for a period of ten days. the experiments were conducted over a period of SO days The nutrient removal patterns were obtained for ammonia-nitrogen, nitrite, nitrate and phosphate Reductions in nutrient in the Lemna gibba system are higher in raw wastewater compared to dilutions. Ammonia nitrogen had maximum removal efficiency followed by nitrate, nitrite and phosphate. Biomass productivity was also higher in the raw wastewater series than with dilutions. The studies indicated the survival of Lemna gibba in low nutrient loading conditions and also as a potential biomass resource
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References
- Alabaster J. S. 1982. Report of the EIRAC workshop on fish farm effluents FAO. EIFAC Tech, paper no. 41,pp 165.
- APHA-AWWA-WPCF 1995. Standard Methods for the Examination of Water and Wastewater. 18" edition.Amer. Pub. HIth. Assoc. Washington, D.C.
- Boniardi N., Vatta G., Rota R., G and Carra S. 1994 Removal of water pollutants by Lemna gibba. Chem.Engg. J. 54 B, 41-48. DOI: https://doi.org/10.1016/0923-0467(94)06051-7
- Boyd C. E. 1990. Water Quality in Pondsfor Aquaculture, Birmingham Publ. UK. pp 482.
- Dahab M. F. and Lee P. Y. 1993. Nitrate reduction by (in situ) bionitrification in groundwater. Wat. Sci. Tech. 2709), 1493. DOI: https://doi.org/10.2166/wst.1992.0593
- Harris J 1 98L . Federal regulation of fish hatchery effluent quality. Amer. Fish Soc.. Bioengg. Symposium Fish culture, pp 157-161.
- Karpiscak M. M., Gerba Charles, Watt P. J, Pamela M.. Kenneth E. Foster and Falabi, Jeanned, A. 1996. Multi species plant systems for wastewater quality improvements and habitat enhancement. Wat. Sci. Tech. 33(1d0-11), pp 231-236 DOI: https://doi.org/10.2166/wst.1996.0679
- Martin J. F.. Caudron G. Jan E. and Kofman E. 1978. Tech. Eav. Assain 376.23-25,37721-37,378.79,19-25. Oron. G.. Porath, D. and WildSchut Louw, R. 1986. Wastewater treatment and renovation by different ducweed species. J. of Environ. Engg. 112, 247-263
- Picot. B. EI Halouani H., Casellas C., Moersidik S and Bontoux, J 1991. Nutrient removal by high rate pond system is a Mediterranean climate (France). Wat. Sci. Tech. 23, 1535-1541. DOI: https://doi.org/10.2166/wst.1991.0607
- Reddy K. R. and Debusk W. F. 1987. Nutrient storage capabilities of aquatic and wetland plants. In: K. R. Reddy and W. H Smith (eds) Aquatic Plants for Wastewater Treatment and Resournce Recovery. Magnolia Publications Orlando. pp 337-359
- Rejmankva E. 1982. Proceedings First International Wetlands Conference (New Delhi). Pp 397-407.
- Sarkar. SK. i997. Seasonal influence of the plant Lemna major in the treatment of eutrophicated ponds. Poll Res. 6 (4), 247-249.
References
Alabaster J. S. 1982. Report of the EIRAC workshop on fish farm effluents FAO. EIFAC Tech, paper no. 41,pp 165.
APHA-AWWA-WPCF 1995. Standard Methods for the Examination of Water and Wastewater. 18" edition.Amer. Pub. HIth. Assoc. Washington, D.C.
Boniardi N., Vatta G., Rota R., G and Carra S. 1994 Removal of water pollutants by Lemna gibba. Chem.Engg. J. 54 B, 41-48. DOI: https://doi.org/10.1016/0923-0467(94)06051-7
Boyd C. E. 1990. Water Quality in Pondsfor Aquaculture, Birmingham Publ. UK. pp 482.
Dahab M. F. and Lee P. Y. 1993. Nitrate reduction by (in situ) bionitrification in groundwater. Wat. Sci. Tech. 2709), 1493. DOI: https://doi.org/10.2166/wst.1992.0593
Harris J 1 98L . Federal regulation of fish hatchery effluent quality. Amer. Fish Soc.. Bioengg. Symposium Fish culture, pp 157-161.
Karpiscak M. M., Gerba Charles, Watt P. J, Pamela M.. Kenneth E. Foster and Falabi, Jeanned, A. 1996. Multi species plant systems for wastewater quality improvements and habitat enhancement. Wat. Sci. Tech. 33(1d0-11), pp 231-236 DOI: https://doi.org/10.2166/wst.1996.0679
Martin J. F.. Caudron G. Jan E. and Kofman E. 1978. Tech. Eav. Assain 376.23-25,37721-37,378.79,19-25. Oron. G.. Porath, D. and WildSchut Louw, R. 1986. Wastewater treatment and renovation by different ducweed species. J. of Environ. Engg. 112, 247-263
Picot. B. EI Halouani H., Casellas C., Moersidik S and Bontoux, J 1991. Nutrient removal by high rate pond system is a Mediterranean climate (France). Wat. Sci. Tech. 23, 1535-1541. DOI: https://doi.org/10.2166/wst.1991.0607
Reddy K. R. and Debusk W. F. 1987. Nutrient storage capabilities of aquatic and wetland plants. In: K. R. Reddy and W. H Smith (eds) Aquatic Plants for Wastewater Treatment and Resournce Recovery. Magnolia Publications Orlando. pp 337-359
Rejmankva E. 1982. Proceedings First International Wetlands Conference (New Delhi). Pp 397-407.
Sarkar. SK. i997. Seasonal influence of the plant Lemna major in the treatment of eutrophicated ponds. Poll Res. 6 (4), 247-249.