Adsorption of Pb Cu and Fe from aqueous solution using the African Velvet Tamarind Seed (Dialium guineense):- Nwankwo, Michael N
ABSTRACT
Heavy metals which are directly discharged into
receiving water bodies pollute and make them unsafe for use because of their
extreme harmful effects on man. Adsorption is one of the effective methods for
the removal of heavy metal ions from waste water. This work investigates the
potential of a cheap and readily available adsorbent, the seeds of velvet
tamarind in adsorbing P}, Cu and Fe? from aqueous solution. The effects of
various parameters such as adsorbent dose, temperature, initial concentration,
pH and contact time for adsorption of lead, copper and iron ions from aqueous
solutions by tamarind seeds were examined. The experimental equilibrium
adsorption data were tested using the Langmuir, Freundlich, Halsey and
Harkins-Jura equations and their constants and correlation coefficients
determined. Freundlich model showed the best fit to the experimental data as
assessed from the high R? values. The adsorption isotherm results showed the
following order of fitting:Freundlich > Halsey >Harkins-Jura>
Langmuir.The result of the thermodynamic study showed the sorption process to
be spontaneous. Adsorption kinetic data were studied using pseudo-first and
pseudo-second order models. The results indicated that the pseudo-second order
model gives better interpretation to the adsorption data. The experimental
results show that velvet tamarind seed has a significant capacity for removal
of lead, iron and copper ions from waste water streams.
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NWANKWO, N (2026). Adsorption of Pb Cu and Fe from aqueous solution using the African Velvet Tamarind Seed (Dialium guineense):- Nwankwo, Michael N . Mouau.afribary.org: Retrieved Apr 19, 2026, from https://repository.mouau.edu.ng/work/view/adsorption-of-pb-cu-and-fe-from-aqueous-solution-using-the-african-velvet-tamarind-seed-dialium-guineense-nwankwo-michael-n-7-2
NNAMDI, NWANKWO. "Adsorption of Pb Cu and Fe from aqueous solution using the African Velvet Tamarind Seed (Dialium guineense):- Nwankwo, Michael N " Mouau.afribary.org. Mouau.afribary.org, 19 Apr. 2026, https://repository.mouau.edu.ng/work/view/adsorption-of-pb-cu-and-fe-from-aqueous-solution-using-the-african-velvet-tamarind-seed-dialium-guineense-nwankwo-michael-n-7-2. Accessed 19 Apr. 2026.
NNAMDI, NWANKWO. "Adsorption of Pb Cu and Fe from aqueous solution using the African Velvet Tamarind Seed (Dialium guineense):- Nwankwo, Michael N ". Mouau.afribary.org, Mouau.afribary.org, 19 Apr. 2026. Web. 19 Apr. 2026. < https://repository.mouau.edu.ng/work/view/adsorption-of-pb-cu-and-fe-from-aqueous-solution-using-the-african-velvet-tamarind-seed-dialium-guineense-nwankwo-michael-n-7-2 >.
NNAMDI, NWANKWO. "Adsorption of Pb Cu and Fe from aqueous solution using the African Velvet Tamarind Seed (Dialium guineense):- Nwankwo, Michael N " Mouau.afribary.org (2026). Accessed 19 Apr. 2026. https://repository.mouau.edu.ng/work/view/adsorption-of-pb-cu-and-fe-from-aqueous-solution-using-the-african-velvet-tamarind-seed-dialium-guineense-nwankwo-michael-n-7-2