Copper biosorption using local Iraqi natural agents

Yaro, Aprael S.; Al-Hassani, Maha H.; Rasheed, Haider A. K.

doi:10.1080/19443994.2014.884941

Cited by 8 publications

(3 citation statements)

References 12 publications

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“…The pH of the aqueous solution has been reported to present a significant influence on the adsorptive uptake of Cu 2+ ions due to its impact on both the surface binding-sites of the adsorbent and the ionization process of the metal ions [21] [29] [30].…”

Section: Effect Of Solution Phmentioning

confidence: 99%

Adsorption Kinetics of Cupric Ions on Mixture of Modified Corn Stalk and Modified Tomato Waste

Vafakhah¹,

Bahrololoom²,

Saeedikhani³

2016

JWARP

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The water crisis is an increasingly severe global problem that may be reduced by reusing wastewater after suitable treatment methods. Nowadays, biosorption is one of the main parts of environmental technology which could adsorb heavy metals. This paper describes the adsorption of Copper(II) ions from aqueous solution using a mixture of corn stalk and tomato waste which were oxidized with nitric acid. Kinetic and isotherm studies were carried out by studying the effects of parameters such as concentration dosage, time and pH. It was found that the maximum sorption capacity of the mixture of modified corn stalk and modified tomato waste (q m = 25 mg/g) was higher than the modified corn stalk (q m = 20.8 mg/g). Analysis indicated that pseudo-second-order kinetics controlled the adsorption rate and it has been proposed to correlate the experimental data well.

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Section: Effect Of Solution Phmentioning

confidence: 99%

Adsorption Kinetics of Cupric Ions on Mixture of Modified Corn Stalk and Modified Tomato Waste

Vafakhah¹,

Bahrololoom²,

Saeedikhani³

2016

JWARP

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“…Al-Kheriat is a sweet powder found in the legs of the agricultural natural plant namely "Typha domingensis" present in the southern part of Iraq. Past studies had proven its effective use in the removal of lead and cadmium [19] and copper [20]. One of the drawbacks of the adsorption process is that it is only a phase change process that consists of replacing the pollutant from one phase to another normally from liquid media to a solid adsorbent.…”

Section: Introductionmentioning

confidence: 99%

Dual Application of Al-Kheriat of Removal of Arsenic from Aqueous Solution and Acting as Rodenticide

Al-Jendeel¹,

Rasheed²,

Ahmedzeki³

et al. 2023

J. Ecol. Eng.

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Arsenic is a prevalent and pervasive environmental contaminant with varied amounts in drinking water. Arsenic exposure causes cancer, cardiovascular, liver, nerve, and ophthalmic diseases. The current study aimed to find the best conditions for eliminating arsenic from simulated wastewater and their effect on biomarkers of hepatic in mice. Adsorption tests including pH, contact duration, Al-kheriat dosage, and arsenic concentrations were evaluated. Seventy-two healthy albino mice (male) were accidentally allocated into nine groups (n = 8), the first group was considered as healthy control, the second group (AL-Kheriat), and other groups received AL-Kheriat and arsenic 25, 50, 75, 100, 125, 150 and 175 mg/kg, respectively. Next 10 days, the following were examined: LD50 level, ALP (alkaline phosphatase), ALT (alanine aminotransferase), and AST (aspartate aminotransferase), besides the histological condition of the liver. The results showed that the best time for arsenic removal was 4 hours, pH 8, Alkheriat dose 1 gram, and 50 ppm of pollutants. The level of alkaline phosphatase ALP, alanine transaminase ALT, and aspartate transaminase AST was increased to 150.96 (U/L), 143.1(U/L), and 32.8(U/L), respectively, in Al-Khriet and arsenic exposed population than the healthy control group, When the appropriate dose of Al-Khriet and arsenic mixture is used, it can aid in the selection of a safe way of disposing of the adsorbed residue. Additionally, it can serve as a low-cost rodent pesticide, increasing the commercial viability of this removal strategy.

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“…The sulfur component is often present in negligible amounts in naphtha [8]. The conditions of this treatment method include high temperatures and high hydrogen pressure [6]. Then, as a method that works in tandem with HDS, oxidative desulfurization, also known as ODS, has been the subject of substantial research [7].…”

Section: -Introductionmentioning

confidence: 99%

Desulphurization of Simulated Oil Using SAPO-11 with CNT's as Adsorbent: A Kinetic Study

Jabaar,

Al-Jendeel,

Alsheikh

2023

IJCPE

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In this study, sulfur was removed from imitation oil using oxidative desulfurization process. Silicoaluminophosphate (SAPO-11) was prepared using the hydrothermal method with a concentration of carbon nanotubes (CNT) of 0% and 7.5% at 190 °C crystallization temperature. The final molar composition of the as-prepared SAPO-11 was Al2O3: 0.93P2O5: 0.414SiO2. 4% MO/SAPO-11 was prepared using impregnation methods. The produced SAPO-11 was described using X-ray diffraction (XRD) and Brunauer-Emmet-Teller (N2 adsorption–desorption isotherms). It was found that the addition of CNT increased the crystallinity of SAPO-11. The results showed that the surface area of SAPO-11 containing 7.5% CNT was 179.54 m2/g, and the pore volume was 0.317 cm3/g. However, the surface area of SAPO-11 containing 0% CNT was 125.311 m2/g, and pore volume was 0.275 cm3/g, while nanoparticles with an average particle diameter of 24.8 nm were obtained. Then, the prepared SAPO-11 was used in the oxidative desulfurization process. The oxidative desulfurization was studied using several factors affecting desulfurization efficiency, such as time (40, 60, 80, 100, and 120) min, amount of MO/SAPO-11 (0.3, 0.4, 0.5, 0.6, and 0.7) g/100 ml of simulated oil (100 ppm of dibenzothiophene), the amount of hydrogen peroxide (4ml) oxidizer/100 ml of simulated oil, and the temperature ranges from (40, 50, 60, 70, and 80 °C). The results showed that an increase in MO/SAPO-11 led to an increase in desulfurization. The best removal percentage for sulfur content was 92.79%, obtained at 70 °C and 0.6 g of MO/SAPO-11 containing 7.5% CNT, and the removal was 82.34% at 0% CNT and the same other conditions. While the equilibrium was achieved after 100 min. The results revealed that Freundlich's model described the adsorption of sulfur compounds better than Langmuir's, where the R2 of the Freundlich model was 0.9979 and the R2 of the Langmuir model was 0.9554.

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Copper biosorption using local Iraqi natural agents

Cited by 8 publications

References 12 publications

Adsorption Kinetics of Cupric Ions on Mixture of Modified Corn Stalk and Modified Tomato Waste

Adsorption Kinetics of Cupric Ions on Mixture of Modified Corn Stalk and Modified Tomato Waste

Dual Application of Al-Kheriat of Removal of Arsenic from Aqueous Solution and Acting as Rodenticide

Desulphurization of Simulated Oil Using SAPO-11 with CNT's as Adsorbent: A Kinetic Study

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