Authors :
Abdullahi Abdulsalam; Dr. Nura Alhaji Yaro; Alhassan Mohammed; Yahya Saleh Ibrahim; Dr. Kabiru Mustapha Yakasai; Dallacoasta Iyayosa Andrea; Bello Alhassan
Volume/Issue :
Volume 8 - 2023, Issue 10 - October
Google Scholar :
https://tinyurl.com/yc5pm7vf
Scribd :
https://tinyurl.com/2wyby7zj
DOI :
https://doi.org/10.5281/zenodo.10057110
Abstract :
In these studies, an efficient organo-modified
activated carbon adsorbent from sugarcane bagasse with
high adsorption capacity was prepared and used for the
removal of emerging contaminants from wastewater
gotten from the Kaduna Polytechnic female hostel. The
produced adsorbent was characterized to determine the
functional groups, surface area, crystal structures, FTIR,
BET, and XRD analyses. The BET surface areas of the
direct modified activated carbon and the acid-pretreated
activated carbon for adsorption were found to be 572
m2
/g and 356 m2
/g, respectively. The effect of adsorption
parameters, which include contact time, adsorbent
dosage, and temperature, on uptake behavior was all
examined. Langmuir and Freundlich isotherm models
were fitted to the adsorption data. The adsorption of
triclosan, diclofenac, bisphenol A, and methyl paraben
followed pseudo-second-order kinetics and fit well to the
Freundlich isotherms indicating chemisorption. The
wastewater compositions were found to contain major
ECs identified as diclofenac, triclosan, methylparaben,
and bisphenol A, which account for 76.206% of the ECs
that are detrimental to human health and the
environment. The effect of adsorbent dosage shows that
all ECs removed rise rapidly from 0.5–1.0 g adsorbent
dosage and then slowly to reach a maximum of 100%
Triclosan, 99.86% Diclofenac, 92.91% BPA, and 69.26%
Methyl-Paraben removal as adsorbent dosage increases
to 2g. On the other hand, as the adsorbent dosage
increases to 3g, the removal rate of all ECs is observed to
drop slightly and then attain maximum removal as the
dosage rises to 4g. Also, the adsorbent characterization
shows that the morphology of the acid-pretreated organo-
modified AC adsorbents has better pore development
with a higher amorphous structure that enhances uptake
of contaminants into the adsorbents. Directly modified
AC adsorbents show the highest methyl-paraben removal
with an increase in adsorbent dosage when compared to
other adsorbents.
Keywords :
Emerging Contaminants, Organo Modified Adsorbents, Activated Carbon, Adsorption Efficiency, Wastewater.
In these studies, an efficient organo-modified
activated carbon adsorbent from sugarcane bagasse with
high adsorption capacity was prepared and used for the
removal of emerging contaminants from wastewater
gotten from the Kaduna Polytechnic female hostel. The
produced adsorbent was characterized to determine the
functional groups, surface area, crystal structures, FTIR,
BET, and XRD analyses. The BET surface areas of the
direct modified activated carbon and the acid-pretreated
activated carbon for adsorption were found to be 572
m2
/g and 356 m2
/g, respectively. The effect of adsorption
parameters, which include contact time, adsorbent
dosage, and temperature, on uptake behavior was all
examined. Langmuir and Freundlich isotherm models
were fitted to the adsorption data. The adsorption of
triclosan, diclofenac, bisphenol A, and methyl paraben
followed pseudo-second-order kinetics and fit well to the
Freundlich isotherms indicating chemisorption. The
wastewater compositions were found to contain major
ECs identified as diclofenac, triclosan, methylparaben,
and bisphenol A, which account for 76.206% of the ECs
that are detrimental to human health and the
environment. The effect of adsorbent dosage shows that
all ECs removed rise rapidly from 0.5–1.0 g adsorbent
dosage and then slowly to reach a maximum of 100%
Triclosan, 99.86% Diclofenac, 92.91% BPA, and 69.26%
Methyl-Paraben removal as adsorbent dosage increases
to 2g. On the other hand, as the adsorbent dosage
increases to 3g, the removal rate of all ECs is observed to
drop slightly and then attain maximum removal as the
dosage rises to 4g. Also, the adsorbent characterization
shows that the morphology of the acid-pretreated organo-
modified AC adsorbents has better pore development
with a higher amorphous structure that enhances uptake
of contaminants into the adsorbents. Directly modified
AC adsorbents show the highest methyl-paraben removal
with an increase in adsorbent dosage when compared to
other adsorbents.
Keywords :
Emerging Contaminants, Organo Modified Adsorbents, Activated Carbon, Adsorption Efficiency, Wastewater.
