Adsorption Performance of Modified Sponge Gourd for Crude Oil Removal

Abstract

This study determined the adsorption ability of modified sponge gourd fibre in adsorbing crude oil from simulated oil-water mixture. Modification was done on the adsorbent by treating with hot water and sodium hydroxide. The dependence of the adsorption process on particle size of the fibre was determined using mesh sizes of 4.75, 2.36, 1.18 and 0.85 mm. The hot water treatment significantly increased the adsorbing ability of the sponge gourd, removing 83.3% of the crude oil from the mixture, alkaline treated sample removed 45.1% and the raw sample removed 22.9%. The result of the SEM images shows that hot water treated sample has more pores on the surface which influenced the better performance. The FTIR results obtained after the adsorption show the successful adsorption of crude oil on to the surface of the sponge gourd due to the presence of functional groups characteristics of groups found in crude oil. An optimum particle size for the sponge gourd was found to exist at the value of 1.18 mm, above and below which the crude oil removed was reduced. The modification of sponge gourd promoted the adsorption capacity for crude oil.

Gamma irradiation induced surface modification of (PVC/HDPE)/ZnO nanocomposite for enhancing the oil removal and conductivity using COMSOL multiphysics

“…As show in Fig. 9 the percentage adsorption capacity of oils was observed to increase in direct proportion with a decrease in API value and at an inverse proportionality with low functionalized sites in modified (PVC/HDPE)ZnO samples due to the presence of functional groups found in crude oils 55 . According to previous literature, crude oils have other groups containing –C=C–, C=O and OH with excess sulfur and nitrogen 56 .…”

Production of Highly Efficient Activated Carbons for Wastewater Treatment from Post‐Consumer PET Plastic Bottle Waste

“…The chemical adsorption process occurs via the exchange of electrons between the carbon and manganese ions, whereby the driving force $${\left({q}_{e}-{q}_{t}\right){\rm \ }}$$ is proportional to the fraction of available active sites [47–49] . The change in oxidation state is evident in the UV‐Vis analysis at an absorption band of 525.5 nm as there was no absorption at this wavelength at time t =0.…”

“…The chemical adsorption process occurs via the exchange of electrons between the carbon and manganese ions, whereby the driving force q e À q t ð Þ is proportional to the fraction of available active sites. [47][48][49] The change in oxidation state is evident in the UV-Vis analysis at an absorption band of 525.5 nm as there was no absorption at this wavelength at time t = 0. The reduction of these ions occur via the formation of complexes with the oxygen functional groups on the carbon surface.…”

“…Adsorption isotherm models were obtained using Langmuir, Freudlich, Temkim, and Dubnin-Radushkevich models. [55][56][57] Kinetic studies were carried out after an equilibrium of 140 hours using the pseudo-first order, pseudo-second order, and intraparticle diffusion models [46,58,59]…”

Acetylated African Oil Bean Seed Pod For Crude Oil Spill Mop

“…and 1605.63 -1629.79cm -1 (C=O stretching). This may indicate the involvement of these groups in the adsorption of crude oil to the acetylated sample (Shittu et al 2020). The obtained FTIR spectra are consistent with those reported for crude oil adsorption by raw and acetylated corn silk (Asadpour et al 2015) and Delonix regia pods (Onwuka et al 2016).…”