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International Conference on

Recent Trends in Environmental Sustainability

ESCON22/ETERM/42
Biosorption of Chromium (Cr) from contaminated water by using powder of sugarcane
bagasse and corn cob

Muhammad Akram1, Iqra Nazir1
1Department of Environmental Sciences, COMSATS University Islamabad, Vehari- Campus,
61100 Pakistan
Correspondence: muhammadakram@cuivehari.edu.pk

Abstract
Water contamination with Cr is one of the most significant risks to both water resources and
human health. They discharge toxic water containing heavy metals into surrounding bodies of
water. Even when ingested, heavy metals are extremely poisonous and carcinogenic, and they
are not biodegradable. They pose a serious threat to human health, as well as to water and
plants. This study looked at and evaluated the biosorption capacity of natural Sugarcane
Bagasse (SB) and Corn Cob (CC) for removing Cr from contaminated water. A series of batch
experiment were conducted to study this goal at various adsorbent mass (1, 2, 3, and 4g per
100 ml polluted water), beginning Cr concentration, and adsorbent mass (1, 2, 3, and 4g per
100 ml polluted water) (10, 20, 30, and 40 ppm).All of the bio-sorbents studied were able to
adsorb and remove Cr ions from contaminated water, according to the findings. Based on the
corresponding values of the adsorbent biomass, the highest percentage removal of Cr was 4g
for both adsorbent types. From this biomass, around (56% SB 58 %CC) of Cr was recovered.
The results showed that the adsorbents removed the most Cr in the first 30 minutes, with the
contact time removal % of Cr for both adsorbent types being highest at 30 min. Approximately
65 % SB and 73 % Cr were eliminated at this time. The Cr removal curves become nearly
constant after 60 minutes. At a Cr concentration of 30 ppm, a biomass dose of 2 g, and a
solution volume of 100 mL, the effect of solution pH (4, 5, 6, and 7) on Cr removal was
investigated. The elimination percentage of Cr was maximum at 5 pH by SB and 6 pH by CC
at various pH values. SB removed 59 %of Cr at pH 5 and 74 percent of Cr at pH 6.The
Freundlich adsorption isotherm model fit our data better when we used equilibrium isotherm
models. For the reasons described above, it has been shown that Sugarcane bagasse and Corn
cob have the ability to adsorb and remove Cr ions from contaminated water.
Keywords: Sugarcane Bagasse (SB), Corn Cob (CC), batch experiment, adsorbent

Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus

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