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Use of
Chrysophyllum albidum
for the removal of metal ions from aqueous solution
Oboh I. O*, Aluyor E. O and Audu T. O. K.
Department
of Chemical Engineering, University of Benin, Benin City,
Nigeria.
*Corresponding author. E-mail:
obohio2009@yahoo.com.
Tel.:+2347035427080
Accepted
18 May, 2009. |
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Heavy
metals released by a number of industrial processes are
major pollutants in marine, ground, industrial and even
treated wastewaters.
Some conventional methods of treatment, generate toxic sludge, hence the
study of biomaterials as adsorbents. The residual metallic
ion concentrations were determined. The results obtained
after contacting for 120 min showed that
Chrysophyllum albidum
seeds achieved the percent removal of 76.2, 63.0, 56.4 and
42.3 for Cu2+, Ni2+, Zn2+
and Pb2+ ions respectively. The percent removal
of Ni2+ ions was 66.5 with an effective dose of
1.0 g of dried
C.
albidum seeds at pH
7.0 shaken for 2 h at 300 r.p.m. The ability of
C.
albidum
seeds to absorb metal ions as shown from the results can be used for the
development of a cheap technology for effluent treatment.
Key
words:
Biomaterials,
Chrysophyllum albidum,
adsorbent, pollution, heavy metals. |
