Removal of color water pollution due to
Reactive Orange 122 dye was investigated using an inexpensive,
locally available
Trapa bispinosa’s
. Fruit and peels
of
T. bispinosa biomass was used for this context in free,
polyvinyl alcohol immobilized and chemically (H
2O
2)
treated form. The aftermath of operational parameters such
as pH (1.0–6.0), dye initial concentration (10–350 mg L
-1)
and contact time (0–1,440 min) was investigated for
maximum removal of dye from aqueous solution. Analysis
was performed on UV–Vis spectrophotometer before and
after sorption phenomenon. Maximum uptake was
observed at pH 1.0. Highest
q (mg g
-1) was shown by
H
2O
2-treated
T. bispinosa fruit (46.36) and H
2O
2-treated
T. bispinosa fruit beads (43.00). The sorption rate was rapid
in first 30 min, and equilibrium was established in
120 min. It was observed that best model was pseudosecond
order, with correlation coefficient in the range of
0.987–1.00. Langmuir model effectively described the
sorption data with
Xm and
R2 that were in good agreement
with experimental
q (mg g
-1). Regeneration of the sorbent
was done by performing desorption cycles, which made the
method environment-friendly and more economical. Surface
morphology and elemental analysis of a sample were
carried out.
