Wednesday, 25 November 2015 16:38

Removal of rhodamine B from textile wastewater using lemon waste

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Chemistry Department- Faculty of Science- Assiut University -
New Valley Branch-Alkharga, Egypt

Lemon waste is an abundant waste product that could be a cost effective technique for
removing rhodamine B from wastewater. The ability of two adsorbents prepared from
lemon waste to remove rhodamine B from aqueous solutions was investigated. The
adsorption capacity was determined as a function of contact time, pH, and adsorbent
dosages. The treated lemon waste showed excellent efficiency in removing rhodamine
B with percentage of removal up to 99.23% and the maximum removal has been
found to be 5.75 for initial concentration of 10 mg/L. The adsorption process was
found to follow Langmuir isotherm model and proceed according to the pseudo
second-order kinetic model. Temperature effects proved that the adsorption was
exothermic and pure physical in nature. The removal efficiencies of rhodamine B
from actual samples ranged from 40.61 to 65.8%. The use of lemon waste as
adsorbent is not only effective for rhodamine B removal from wastewater but also
helps in solving the problem of over-abundance of agricultural waste product.

Read 778 times Last modified on Wednesday, 09 December 2015 14:43

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