alexa Abstract | Determination of the ability of Azolla as an agent of bioremediation

European Journal of Experimental Biology
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Azolla is a good bioremediation and can be used for the treatment of wastewater such as industrial effluents, sewage water etc. and it is eco-friendly and effective. We investigated the ability of the aquatic fern Azolla to determined the pH, Dissolved Oxygen (DO) and Biological Oxygen Demand (BOD) of the water sample which is collected from Nambul River and Imphal River. The collected water sample is stored in a tub and 1m2 microplots is prepared with sufficient water (5 -10 cm) , 4-20 kg P2O5/ha, pH (8.0) , temperature (14 - 300 C). The fresh Azolla (0.5 – 0.4 Kg/m2) is inoculated in the microplots using furadon as an insecticide. After three weeks of growth, mat formed by Azolla is harvested and the same microplot is inoculated with fresh Azolla to repeat the cultivation.The pH, DO and BOD of the water was taken before and after treatment of the Azolla. The pH of the water sample has come down after the treatment and brought more towards neutral this may due to absorption of the ions and other organic pollutants present in the water sample by Azolla. The D.O. of the water was also found to be increased and the level of BOD came down significantly.

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Author(s): Maibam K Devi Wahengbam N Singh Wahengbam R C Singh Heigrujam B Singh and Nongmaithem M Singh


Azolla, Bioremediation, wastewaters, pH, D.O. and B.O.D., Azolla, Bioremediation, wastewaters, pH, D.O. and B.O.D.

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