Retention and selectivity of phosphate and fluoride from single and industrial aqueous solutions using purified and surfactant modified Tunisian clay

Yahya, Kawthar; Msadok, Imed; Mlayah, Ammar; Srasra, Ezzeddine; Hamdi, Noureddine

doi:10.5004/dwt.2021.26814

Cited by 6 publications

(7 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These data indicate that the surfactant molecules are located as paraffinic bilayer arrangement in the interlayer space of the montmorillonites (Figure 4) [39]. This result is in accordance with another study [45,61].…”

Section: X-ray Diffraction (Xrd)supporting

confidence: 91%

Organoclay Nano-Adsorbent: Preparation, Characterization and Applications

Yahya¹,

Hamdi²,

Hamdi³

2022

Nanoclay - Recent Advances, New Perspectives and Applications

Self Cite

View full text Add to dashboard Cite

Organoclay has a tremendous impact on both fundamental studies and practical applications in numerous fields. In this context, this chapter investigates the performance of Organoclay in wastewater treatment. In particular, the adsorption of various hazardous substances has been reviewed. This study aims to give an overview of the preparation methods of Organoclay. The second purpose was to discuss the removal efficiency and reliability of various pollutants by organoclay. The third goal discussed the isotherms and kinetics used for the data interpretation. This work revealed that the characteristics of Organoclay depend mainly on the type of clay used and the nature of the intercalated surfactant. Sorption efficiency was found to depend on the nature of Organoclay, type of pollutant, pH, contact time and the concentration of pollutant.

show abstract

Section: X-ray Diffraction (Xrd)supporting

confidence: 91%

Organoclay Nano-Adsorbent: Preparation, Characterization and Applications

Yahya¹,

Hamdi²,

Hamdi³

2022

Nanoclay - Recent Advances, New Perspectives and Applications

Self Cite

View full text Add to dashboard Cite

show abstract

“…The relative percentage was estimated using the X'pert High Score software. The clay fraction (<2 μm) was separated by centrifugation, as mentioned in our previous study (Yahya, Msadok, et al, 2021). Infrared spectra obtained using the Fourier transform infrared spectroscopy FTIR spectrophotometer (Perkin Elmer model 783) were recorded in the 400-4000 cm À1 range using the KBr pellet technique.…”

Section: Characterization Methodsmentioning

confidence: 99%

“…Therefore, in order to increase the efficiency of phosphate removal from wastewaters, several studies have also addressed the modification of raw clay through the use of various methods (El Bouraie & Masoud, 2017;Tian et al, 2009;Yahya, Msadok, et al, 2021;Ye et al, 2006). Some modifications are often made to activate clay surface properties and structures and thus enhance its performance El Bouraie & Masoud, 2017;Yahya, Msadok, et al, 2021;Ye et al, 2006). Still, the phosphate adsorption capacity of some modified clay remained tiny.…”

Section: Introductionmentioning

confidence: 99%

“…Among them, clay minerals stand out as the most commonly used and effective adsorbents for pollutant withdrawal from aquatic environments (Gan et al, 2016; Wendling et al, 2013). Several prior studies have revealed phosphate adsorption capacity of <5 mg g −1 using raw clay (Yahya, Msadok, et al, 2021; Li et al, 2016). Therefore, in order to increase the efficiency of phosphate removal from wastewaters, several studies have also addressed the modification of raw clay through the use of various methods (El Bouraie & Masoud, 2017; Tian et al, 2009; Yahya, Msadok, et al, 2021; Ye et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

“…Several prior studies have revealed phosphate adsorption capacity of <5 mg g −1 using raw clay (Yahya, Msadok, et al, 2021; Li et al, 2016). Therefore, in order to increase the efficiency of phosphate removal from wastewaters, several studies have also addressed the modification of raw clay through the use of various methods (El Bouraie & Masoud, 2017; Tian et al, 2009; Yahya, Msadok, et al, 2021; Ye et al, 2006). Some modifications are often made to activate clay surface properties and structures and thus enhance its performance El Bouraie & Masoud, 2017; Yahya, Msadok, et al, 2021; Ye et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Removal of phosphate from synthetic wastewater: A comparative study between both activated clays using an experimental design methodology

Yahya

Msadok

et al. 2022

Water Environment Research

Self Cite

View full text Add to dashboard Cite

Phosphate‐loaded industrial wastewaters have resulted in numerous environmental issues that have hard hit the Gulf of Gabes‐Tunisia, making the environmental protection one of the most compelling priorities. Consequently, this study aimed first to compare the amounts of phosphate adsorbed by two types of Tunisian activated clays. The second goal was to assess and optimize the phosphate removal efficiency of these clays, using Box–Behnken design (BBD) under response surface methodology. Results showed that the highest adsorption amounts of 130.16 mg g−1, 125.42 mg g−1 were yielded for Jebel Haidoudi clay and Douiret clay, respectively. These values demanded an initial phosphate concentration of 300 mg L−1, a contact time of 5 h, and a pH of 2). Thus, kinetic and isotherm studies of phosphate elimination from synthetic solutions demonstrated that for both activated clays, the pseudo‐second‐order and Langmuir equation fitted very well the experimental data, respectively. These results indicate that phosphate adsorption might be mainly a chimisorption phenomenon and a monolayer process. All these findings confirmed that both activated clays could be considered as a competent, cost‐effective, efficient and ecological alternative for the elimination of phosphate from industrial wastewaters. Practitioner Points Activated clay could be adopted as an efficient and cost‐effective adsorbent. The optimum conditions were nominated as 300 mg L−1 of initial phosphate concentration, 5 h contact times and pH = 2. The probable uptake mechanism of phosphate followed predominantly the acid‐base interaction and hydrogen bond.

show abstract