Assessing the efficiency and mechanism of zinc adsorption onto biochars from poultry litter and softwood feedstocks

O'Connor, Keith; Al-Abed, Souhail R.; Hordern, Sarah; Pinto, Patricio X.

doi:10.1016/j.biteb.2022.101039

Cited by 5 publications

(3 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The presence of soluble heavy metals at concentrations greater than 0.05 mg/L has a malignant influence on the liver, lung, and kidneys by ingesting 1 L of polluted water every day. , Moreover, these metals demonstrate deleterious effects on the red blood cells, nervous system, and skin. , The frequent detection of Cd(II) contamination in water bodies can be primarily attributed to the disposal of effluents from various industrial activities, including smelting, cadmium–nickel battery fabrication, metal plating, pigment production, and alloy manufacturing. , The Cd(II) as soluble chemical ions has been categorized as a malignant and highly poisonous ion, necessitating its presence in water to be maintained at a level below about 0.003 mg/L. , Furthermore, the presence of Cd(II) contaminants has been found to result in several adverse health consequences, including acute disorders, pulmonary edema, itai–itai illness, chronic disorders, liver failure, emphysema, hypertension, osteomalacia, testicular atrophy, and kidney failure. , The inhibitory influence of Cd(II) ion on the leaf productivity of plants and seed germination, in addition to plant length and root elongation, has also been reported as having environmental side impacts . Furthermore, the intrusion of elevated levels of Cd(II) has been found to have significant detrimental impacts on aquatic organisms and their ecosystems, as well as the commercial value of fish. , …”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“… 9 , 10 Moreover, these metals demonstrate deleterious effects on the red blood cells, nervous system, and skin. 10 , 11 The frequent detection of Cd(II) contamination in water bodies can be primarily attributed to the disposal of effluents from various industrial activities, including smelting, cadmium–nickel battery fabrication, metal plating, pigment production, and alloy manufacturing. 4 , 12 The Cd(II) as soluble chemical ions has been categorized as a malignant and highly poisonous ion, necessitating its presence in water to be maintained at a level below about 0.003 mg/L.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Enhanced Retention of Cd(II) by Exfoliated Bentonite and Its Methoxy Form: Steric and Energetic Studies

Abukhadra,

Nasser,

El-Sherbeeny

et al. 2024

ACS Omega

View full text Add to dashboard Cite

Synergistic studies were conducted to evaluate the retention potentiality of exfoliating bentonite (EXBEN) as well as its methanol hybridization derivative (Mth/EXBEN) toward Cd(II) ions to be able to verify the effects of the transformation processes. The adsorption characteristics were established by considering the steric and energetic aspects of the implemented advanced equilibrium simulation, specifically the monolayer model with a single energy level. Throughout the full saturation states, the adsorption characteristics of Cd(II) increased substantially to 363.7 mg/g following the methanol hybridized treatment in comparison to EXBEN (293.2 mg/g) as well as raw bentonite (BEN) (187.3 mg/g). The steric analysis indicated a significant rise in the levels of the active sites following the exfoliation procedure [retention site density (N m ) = 162.96 mg/g] and the chemical modification with methanol [retention site density (N m ) = 157.1 mg/g]. These findings clarify the improvement in the potential of Mth/EXBEN to eliminate Cd(II). Furthermore, each open site of Mth/EXBEN has the capacity to bind approximately three ions of Cd(II) in a vertically aligned manner. The energetic investigations, encompassing the Gaussian energy (less than 8 kJ/mol) plus the adsorption energy (less than 40 kJ/mol), provide evidence of the physical sequestration of Cd(II). This process may involve the collaborative impacts of dipole binding forces (ranging from 2 to 29 kJ/mol) and hydrogen binding (less than 30 kJ/mol). The measurable thermodynamic functions, particularly entropy, internal energy, and free enthalpy, corroborate the exothermic and spontaneous nature of Cd(II) retention by Mth/ EXBEN, as opposed to those by EXBEN and BE.

show abstract