Remediation of oil spill polluted water from Niger Delta Nigeria by sorption onto ammonium sulfate modified <i>Dialium guineense</i> seed husk

Removal of arsenic(III) from aqueous solution has been studied using activated carbon produced from Dialium guineense seed shell by impregnation of carbonized sample with zinc chloride and thermal activation. The zinc chloride activated sample was selected because it produced the highest iodine number, mg/g (962.52) compared to the raw sample (601.57), phosphoric acid and nitric acid impregnated samples (802.10, 868.95). Proximate analysis of raw D. guineense seed shell revealed low ash content of 1.70% and moderate fixed carbon of 32.97%. The prepared adsorbent was characterized using Brunaeur-Emmett-Teller surface area, SEM and FTIR analyses. The surface area of the zinc chloride activated adsorbent was 533.94 m 2 /g and its micropore volume 0.475 cm 3 /g, with a porous structure that is well organized. Batch adsorption experiments were done by changing the following parameters: adsorbent dose, pH, contact time, initial metal ion concentration and temperature. Adsorption increased as each parameter was varied but decreased with increase in initial arsenic(III) concentration. The Freundlich model presented better fit with R 2 of 0.998 compared to the Freundlich isotherm (0.991) and Tempkin isotherm (0.984). The positive value of ∆H° 51.68 kJ/mol showed the endothermic nature of adsorption. The study demonstrated the potential of D. guineense seed shell as low cost adsorbent for removing arsenic(III) from polluted water.

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“…Hence, there was lack of available active sites required for the high concentration of As(III). Similar results were reported [27][28][29][30].…”

Section: Influence Of Adsorption Variablessupporting

confidence: 91%

Abstraction of arsenic(III) on activated carbon prepared from Dialium guineense seed shell: kinetics, isotherms and thermodynamic studies

et al. 2019

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“…The presence of sub-surface hydrocarbon contaminants was verified. Eze et al (2019) used modified Ammonium sulphate for the modification of Dialium guineese seed husk to remediate oil spill polluted water by the process of biosorption. The technique of the biosorbent preparation was according to the general procedure (Adeniyi and Ighalo, 2019a) of washing drying, grinding, sieving and chemical modification by wet impregnation.…”

Section: Evaluation Of Recent Research Effortsmentioning

confidence: 99%

Recent Advances in Environmental Protection of Oil Polluted Surface and Groundwater in the Nigerian Context

Ighalo

Adeniyi

Otoikhian

2020

jCEC

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Over the years, Nigerian researchers in environmental engineering and chemistry have been evaluating a variety of technologies for the remediation of petroleum industry polluted surface and groundwater. In this mini-review, the recent advances in this regard over the past two years were evaluated. This was done as an appraisal of research efforts to understand the current research trend and gain a proper perspective of the required/needed future approach in the research area. It was observed that most studies are still focusing on evaluating the problems instead of finding actual solutions. Development of workable and novel solutions are urgently needed. It can be in the form of better remediation techniques or via the development of alternative technologies for utilizing the waste/pollutant materials. The paper has given a clear opinion on the progress of environmental protection and sustainability in the Nigerian context. The environmental regulations scenario in the country is marred by malpractices and corruption more stringent policy enforcement will help in the achievement of environmental protection.

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“…These agricultural wastes are abundant, low-cost, biodegradable and certainly a well-known source of renewable lignocellulosic biomass (Sun et al 2004). Agrowastes that were employed in the cleanup of oil-contaminated solutions consist of wheat straws (Mansour et al 2016), coconut husk (Ifelebuegu and Momoh 2015), oil palm leaves (Fathy et al 2017), palm fibers (Abdelwahab et al 2017), activated yam peel carbon (Dawodu et al 2018), dialium guineense seed husks (DGSH) (Eze et al 2019), codiaeum variegatum stem plant (CVSP) (Akpomie et al 2019), ammonium sulfate-modified dialium guineense seed husks (AS-DGSH) (Eze et al 2019), etc.…”

Section: Introductionmentioning

confidence: 99%

“…Previous studies have established the fact that some agrowastes including the dialium guineense seed husks (DGSH) (Eze et al 2019) mentioned above have the potential to abstract crude oil. Oil abstraction by batch method using this sorbent was favorable when the optimum sorbent dose of 0.2 g and initial oil concentration of 1.0 g/L at optimum pH of 3 were adopted, resulting in sorption capacity of 3.1 g/g.…”

Section: Introductionmentioning

confidence: 99%

Application of raw Vigna subterranean husks as novel sorbent for abstraction of petroleum from contaminated waters

Ogbu

Ibeto

Okoye

2021

Int. J. Environ. Sci. Technol.

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The potential of raw V. subterranean husks (RVSH) as a novel natural sorbent, and an environmentally friendly and lowcost product for the cleanup of petroleum from contaminated waters was investigated. Characterization of the sorbent was accomplished with scanning electron microscope (SEM), Fourier transform infrared (FTIR), Brunauer-Emmett-Teller (BET) surface area analysis and thermogravimetric analysis (TGA). Batch sorption approach was applied to assess the impact of sorbent dose, pH, initial concentration, temperature as well as time. Crude oil characterization disclosed light oil owing to the o API gravity of 36.5 °. The Langmuir model offered a superlative fit to the experimental data with greater regression coefficient (R 2 ) and lower chi-square (χ 2 ) and sum of squares of the errors (SSE) contrary to Temkin, Freundlich, Scatchard models and also produced maximum monolayer sorption capacity of 3.79 g/g. The pseudo-second-order model was more appropriate for kinetic considerations than first-order, intraparticle diffusion and liquid film diffusion models, and equilibrium sorption time of 70 min was achieved. Thermodynamic considerations presented an endothermic, non-spontaneous and physicochemical sorption process and also an improvement in randomness of the petroleum-RVSH interface. Recovery was good as 60.58% of the sorbate was salvaged using n-hexane as stripping agent, and reusability of the sorbent was also achieved after each cycle of sorption-desorption analysis. Therefore, the sorbent is suitable in the management of oil-contaminated water bodies.

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Remediation of oil spill polluted water from Niger Delta Nigeria by sorption onto ammonium sulfate modified Dialium guineense seed husk

Cited by 21 publications

References 13 publications

Abstraction of arsenic(III) on activated carbon prepared from Dialium guineense seed shell: kinetics, isotherms and thermodynamic studies

Abstraction of arsenic(III) on activated carbon prepared from Dialium guineense seed shell: kinetics, isotherms and thermodynamic studies

Recent Advances in Environmental Protection of Oil Polluted Surface and Groundwater in the Nigerian Context

Application of raw Vigna subterranean husks as novel sorbent for abstraction of petroleum from contaminated waters

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