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VOL. 5, ISSUE 3 (2023)
Bioremediation of national thermal power corporation (NTPC) industrial waste water by using microalga Scenedesmus dimorphus
Authors
Soumya Das K, Sekaran S
Abstract
Now a days water pollution is a worldwide threat to public health and
new initiatives are to be taken for the restoration of our aquatic environment.
The conventional method of chemical treatment of waste water can only reduce
the concentration of pollutants to a limited extent. In this context biological
treatment is more reliable as it is cost effective and economical than
mechanical or chemical treatment processes. Being primary producers, algae are
of very important in this aspect. The present investigation focuses on the
bioremediation of waste water by using a microalga Scenedesmus dimorphus.
For the study the industrial waste water samples and algal samples were
collected from Kayamkulam Lake near NTPC, Alappuzha district, Kerala. Samples
were analysed for Physico- Chemical parameters such as pH, Total Alkalinity
(TA), Dissolved Oxygen (DO), Chloride, Hardness, Calcium, Phosphate, Sulphate,
Nitrate, BOD and COD using standard methods with an interval of five days till
the colour of water sample changes. Algae were analysed quantitatively and qualitatively.
Among the algal taxa S. dimorphus was found to be the most abundant and
pollution tolerant one. S. dimorphus was isolated from the waste water
and cultured in BBM medium. The percentage reduction of various parameters was
recorded from the samples treated with the alga. Maximum percentage reduction
attained with S. dimorphus were COD (71.23%) BOD (89.72%) Phosphate
(86.14%) Nitrate (77.64%). The results were discussed in the text.
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Pages:4-6
How to cite this article:
Soumya Das K, Sekaran S "Bioremediation of national thermal power corporation (NTPC) industrial waste water by using microalga <i>Scenedesmus dimorphus</i>". International Journal of Ecology and Environmental Sciences, Vol 5, Issue 3, 2023, Pages 4-6
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