Rotary drum dryers are mostly used for dewatering purpose and
drying purpose only. These rotary drums are hollow internally which rotates
continuously on the common axis with suction pressure toward central duct. Our
innovation lies in utilizing this concept for heavy metal removal from
wastewater using natural biosorbent,
NEEM OIL CAKE(Azadirachta indica). This hollow drum is partially dipped
in wastewater which needs to be treated. On the outer radius of drum we have
made a coating of neem oil cake(NOC). As
the drum rotates heavy metals present in
wastewater will come in contact with the NOC Layer. Due to BIOSORPTION tendency
of NOC heavy metals will strongly bind on NOC surface, According to data on sciencedirect.com
,the adsorption of Pb(II) was found to be maximum (98%) at pH 4 and the
breakthrough capacities of Cu(II), Cd(II) and Pb(II) on NOC are found to be 10,
15 and 30 mg/g, respectively. Apart from this NEEM Components possesses a wide spectrum of antibacterial
action against Gram-negative and Gram-positive microorganisms, including M.
tuberculosis and streptomycin resistant strains and will kill other water
borne disease causing organism. So our this design is serving dual role 1-
Heavy Metal removal in most eco-friendly way
2-Making water free from broad range of disease causing microbes.Kindly post your feedback by commenting below.For further queries reach me at mkgsonu.1987@gmail.com
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