The removal of manganese ions from industrial wastewater using local Saudi and commercial bentonite clays

AlTowyan, Layan; AlSagabi, Sultan; AlAjyan, Turki; AlSulami, Khalifa; Said, Souraya Goumri

doi:10.1016/j.gsd.2022.100821

Cited by 10 publications

(2 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…From this point of view, it is important to know the concentrations of PTEs contained in bentonites. Until now, many studies on the absorption/adsorption and desorption of PTEs or heavy metals by bentonites have been published in the literature. − However, according to our literature research, there is no detailed study on the determination of PTE concentrations in bentonites. This study aims to determine the concentrations of PTEs (Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Zr, and Pb) in 72 bentonite samples collected from quarries located in different geographical regions of Turkey using energy-dispersive X-ray fluorescence (XRF) spectrometry and calculate the enrichment factor to Earth’s crustal average of the PTEs.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Levels of Potentially Toxic Elements Contained in Natural Bentonites Collected from Quarries in Turkey

Altıkulaç

Turhan

2023

ACS Omega

View full text Add to dashboard Cite

Potentially toxic elements (PTEs) are an important type of pollutant, causing constant and far-reaching concerns around the world due to their increase in the mining process. Bentonite formed by the alteration of glass-rich volcanic rocks is a smectite clay consisting mostly of montmorillonite. Bentonite is an important mineral used in a wide range of applications in many fields such as oil and gas, agriculture, food, pharmacological, cosmetic, and construction industries due to its unique qualities. Given the widespread distribution of bentonite in nature and its use in a wide variety of consumer products, it is inevitable that the general population will be exposed to PTEs contained in bentonites. In this study, concentrations of PTEs in 69 bentonite samples collected from quarries located in different geographical regions of Turkey were analyzed by an energy-dispersive X-ray fluorescence spectrometric method.

show abstract

Section: Introductionmentioning

confidence: 99%

Assessment of the Levels of Potentially Toxic Elements Contained in Natural Bentonites Collected from Quarries in Turkey

Altıkulaç

Turhan

2023

ACS Omega

View full text Add to dashboard Cite

show abstract

“…Various exchangeable cations can replace ions in the montmorillonite structure [32]. In the past, metal sorption using bentonite was addressed by Alexander et al [33], Towyan et al [34], Sathyanarayana, and Seshaiah [35].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Copper and Zinc Sorption Depending on Temperature and Sorbents

Prepilková,

Poništ,

Belčáková

et al. 2024

Pol. J. Environ. Stud.

View full text Add to dashboard Cite

In this paper, we compared the sorption of copper and zinc on three adsorbents -bentonite, zeolite, and dewatered digested sludge from a wastewater treatment plant. Sorption was carried out at 27ºC and subsequently at a reduced temperature of 10ºC and the results were compared. The reduced temperature positively affected the sorption efficiency and increased the adsorption capacity of the monolayer of each sorbent. Regardless of the temperature, the sorption progression was not linear. In the initial phase, the sorption proceeded rapidly, but after about 90 min the system reached equilibrium and the concentrations of metals in solution did not change significantly. The size of the specific surface area of the sorbents did not directly correlate with the removal efficiency of Cu 2+ and Zn 2+ . Copper sorption by bentonite reached a level of almost 100% at reduced temperature and 80% at room temperature. The efficiency of zinc removal by bentonite was found to be 40% at reduced temperature. The efficiency of copper removal using zeolite was approximately 90% at both laboratory and reduced temperature. For bentonite and zeolite, we confirmed their good sorption properties. The sludge showed low Cu 2+ sorption efficiency, but Zn 2+ removal efficiency was higher than bentonite and zeolite. In both cases, the reduced temperature had a positive effect on the sorption capacity of the sludge. Sludge as a waste material could be used for heavy metal removal by modifying the sorption conditions or its modifying, which should be further investigated.

show abstract

Ecotoxicological evaluation of urban wastewater treatment plants: a Sicilian study

Rapisarda,

Conti,

Pulvirenti

et al. 2024

Ecotoxicology

View full text Add to dashboard Cite

The removal of manganese ions from industrial wastewater using local Saudi and commercial bentonite clays

Cited by 10 publications

References 25 publications

Assessment of the Levels of Potentially Toxic Elements Contained in Natural Bentonites Collected from Quarries in Turkey

Assessment of the Levels of Potentially Toxic Elements Contained in Natural Bentonites Collected from Quarries in Turkey

Comparison of Copper and Zinc Sorption Depending on Temperature and Sorbents

Ecotoxicological evaluation of urban wastewater treatment plants: a Sicilian study

Contact Info

Product

Resources

About