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Experimental Study on Removal of Chromium by using Cow Dung as Low Cost Adsorbents


Ayyappan Thangavel1*,Elangovan Gopal2


1Ratnavel Subramaniam College of Engineering, Dindigul, Tamilnadu, India
2University college of Engineering, Pattukottai, Tamilnadu, India


In apparent, the intension is removal of chromium using cow dung as low cost adsorbents from the industrial wastewater. Chromium (Cr) is one of the most toxic substances and is introduced into the environment through a variety of industrial activities. In order to remove the chromium from the contaminated water there are lot of methods available, even though they are not in natural way. In the paper naturally availing material like Cow dung ash is used to remove the chromium by adsorbent method. Since the collected chromium contaminated waste water from the industry will have only a particular Cr+ concentration and pH value, an aqueous solution has been prepared with unique concentration and with different pH values. And activated ash is added separately to the aqueous solution with different dosages and varying contact periods. From the investigation and interpretation of results it has been noted that the Cow dung ash has effectively removed the chromium content when it was added 6g/l to the 1000ml of aqueous solution. In the view of contact time of the adsorbent, 3 hours of period been an ideal one and pH doesn’t had a significant effect.


Chromium (Cr), Cow dung, Aqueous solution, Spectrometer, pH meter.

Full Text:

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