Increasing Nitrogen Uptake and Removal Efficiency of Eichhornia crassipes from Domestic Sewage through Dilution Culture Study
Effluent from an urban pond receiving domestic sewage for many decades was investigated. The chemical analysis of sewage of the pond revealed very high concentrations of BOD, COD, total N, NH4+ –N at alkaline pH with very low concentration of DO and caused stunted growth of Eichhornia crasspes. Hence, biomass productions by E. crassipes in different rate of diluted cultures, sewage with tap water were studied. The plant recorded significantly (p < 0.01) increased biomass production, N uptake efficiency as well as N removal efficiency in two times dilution than undiluted sewage culture. Analysis of variance revealed significant variation among different rate of dilutions for net biomass production (F = 58.13), N uptake efficiency (F = 89.80) and N removal efficiency (F = 18.61) by E. crassipes at the end of two months culture study.
Abbasi, S.A. and E. Ramasami (1999). Biotechnological Methods of Pollution Control. University Press Ltd., Hyderguda, Hyderabad.
Allen, S.E. (1989). Chemical analysis of ecological materials. Second ed. Blackwell Scientific Publication. Butler & Tanner Ltd., Rome and London.
APHA (1995). Standard Methods for Examination of Water and Wastewater, 19th ed. American Public Health Association, Washington DC, USA.
Boyd, C.E. (1970). Vascular aquatic plants for mineral nutrient removal from polluted water. Econ. Bot., 30: 51-56.
Caisedo, J.R., Van der Steen, N.P., Arce, O. and H.J. Gijzen (2000). Effect of total ammonium nitrogen concentration and pH on growth rate of duckweed (Spirodela polyrhiza). Water Research, 34: 3829-3835.
Giri, A.K., Vishal, K., Verma, Sarita and M.P. Singh (2012). Wealth from wastewater for sustainable agriculture. In: National seminar on Environmental Concerns and Sustainable Development: Issues and Challenges for India; 2-4 March, 2012, Institute of Environment and Sustainable Development, BHU, Varanasi, India.
Gomez, K.A. and A.A. Gomez (1984). Statistical procedure for agricultural research. John Wiley, New York.
Imaoka, T. and S. Teranishi (1988). Rates of nutrient uptake and growth of the water hyacinth [E. crassipes (Mart.) Solms]. Wat. Res., 22: 943-951.
Kadle, R.H. and R.L. Knight (1996). Treatment and wetlands. CRC Press, Lewis Publishers, Boca Raton, FL.
Olguin, J.E., Rodriguez, D., Sanchez, G., Hernandez, E. and M.E. Ramirez (2003). Productivity, protein content and nutrient removal from anaerobic effluent of coffee wastewater in Salvinia minima pond, under subtropical conditions. Acta Biotechnologia, 23: 259-270.
Olguin, J.E., Sanchez, G. and T. Parez-Parez (2007). Assessment of phytoremediation potential of S. minima Baker compared to S. polyrrhiza in high strength organic wastewater. Water Air Soil Pollut., 181: 135-147.
Reddy, K.R. and W.F. De Busk (1985). Nutrient removal potential of selected aquatic macrophytes. J. Environ. Qual.,14: 459-462.
Reddy, K.R., Agami, M., Angelo, E.M. and J.C. Tucker (1991). Influence of Potassium supply on growth and nutrient storage by water hyacinth. Bioresource Technology, 37: 79- 84.
Singhal, V. and J.P.N. Rai (2003). Biogas production from water hyacinth and channel grass used for phytoremediation of industrial effluents. Biores. Tech., 86: 221-225.
Tripathi, B.D. and A.R. Upadhyay (2003). Dairy effluent polishing by aquatic macrophytes. Water, Air and Soil Pollution, 143: 377-385.
Wolverton, B.C. and R.C. McDonald (1979). Water hyacinth (E. crassipes) productivity and harvesting studies. Econ. Bot., 33: 1-10.