Competitive adsorption models of organic pollutants from bi-and tri-solute systems on activated carbon

Mihalache, R.; Peleanu, Ion; Meghea, Irina; Tudorache, Alin

doi:10.1007/bf02389461

Cited by 8 publications

(5 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They stated that for multi-component system, the adsorption of a solute in presence of other solutes is controlled by molecule size, solubility and polarity. Mihalache et al [11] presented competitive adsorption on AC of three aqueous bi-solute system (phenol/p-nitrophenol, phenol/p-chlorophenol, p-nitrophenol/p-chlorophenol) and trisolute system (phenol/p-nitrophenol/p-chlorophenol). Lee et al [12] investigated competitive adsorption for phenol and 4-nitrophenol in binary system using commercial AC.…”

Section: Introductionmentioning

confidence: 99%

Artificial neural network modeling in competitive adsorption of phenol and resorcinol from water environment using some carbonaceous adsorbents

Aghav

Kumar

Mukherjee

2011

Journal of Hazardous Materials

152

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Artificial neural network modeling in competitive adsorption of phenol and resorcinol from water environment using some carbonaceous adsorbents

Aghav

Kumar

Mukherjee

2011

Journal of Hazardous Materials

152

View full text Add to dashboard Cite

“…This result was in agreement with that obtained by Monneyron et al [41] who reported that, as the concentration increases, solubility is considered the critical factor for the adsorption of phenols. Different authors have reported that the order of adsorption affinity may be interpreted on the basis of the chemical and physical characteristics of molecules and the nature of the different groups located on the aromatic ring [42][43][44][45][46][47]. Among the four phenols investigated here, the order of decreasing solubility is PHBA < PNP < PCP < P which does not at all correspond to the order of single adsorption.…”

Section: Competitive Adsorption Isothermsmentioning

confidence: 90%

Competitive adsorption of phenolic compounds from aqueous solution using sludge‐based activated carbon

Mohamed¹,

Andriantsiferana²,

Wilhelm³

et al. 2011

Environmental Technology

View full text Add to dashboard Cite

Preparation of activated carbon from sewage sludge is a promising approach to produce cheap and efficient adsorbent for pollutants removal as well as to dispose of sewage sludge. The first objective of this study was to investigate the physical and chemical properties (BET surface area, ash and elemental content, surface functional groups by Boehm titration and weight loss by thermogravimetric analysis) of the sludge-based activated carbon (SBAC) so as to give a basic understanding of its structure and to compare to those of two commercial activated carbons, PICA S23 and F22. The second and main objective was to evaluate the performance of SBAC for single and competitive adsorption of four substituted phenols (p-nitrophenol, p-chlorophenol, p-hydroxy benzoic acid and phenol) from their aqueous solutions. The results indicated that, despite moderate micropore and mesopore surface areas, SBAC had remarkable adsorption capacity for phenols, though less than PICA carbons. Uptake of the phenolic compound was found to be dependent on both the porosity and surface chemistry of the carbons. Furthermore, the electronegativity and the hydrophobicity of the adsorbate have significant influence on the adsorption capacity. The Langmuir and Freundlich models were used for the mathematical description of the adsorption equilibrium for single-solute isotherms. Moreover, the Langmuir-Freundlich model gave satisfactory results for describing multicomponent system isotherms. The capacity of the studied activated carbons to adsorb phenols from a multi-solute system was in the following order: p-nitrophenol > p-chlorophenol > PHBA > phenol.

show abstract

“…Several models have been used in the literature to fit single and competitive adsorption isotherms for phenolic derivatives [60][61][62]. In this work, three different models were used to fit single-component adsorption isotherms of paracetamol on AC.…”

Section: Adsorption Modelingmentioning

confidence: 99%

Interaction of paracetamol and 125I-paracetamol with surface groups of activated carbon: theoretical and experimental study

Hernández-Valdés

Enríquez-Victorero

Pizarro-Lou³

et al. 2015

J Radioanal Nucl Chem

View full text Add to dashboard Cite

The selection of activated carbon (AC) filters for water decontamination is currently carried out empirically. The low concentrations of drugs in the environment make the radioisotope labeling a valuable tool for physical and chemical studies of the adsorption process. A theoretical study of paracetamol and 125 I-paracetamol adsorption onto AC was performed to evaluate the interactions between pollutants and surface groups (SG) of AC. Paracetamol was labeled with 125 I and adsorption isotherms were obtained using radioanalytical and spectrophotometric techniques. The radioanalytical method overestimates the paracetamol adsorption. The validity of the chosen approach for qualitative assessment of SG influence over the adsorption process was demonstrated.

show abstract

Competitive adsorption models of organic pollutants from bi-and tri-solute systems on activated carbon

Cited by 8 publications

References 15 publications

Artificial neural network modeling in competitive adsorption of phenol and resorcinol from water environment using some carbonaceous adsorbents

Artificial neural network modeling in competitive adsorption of phenol and resorcinol from water environment using some carbonaceous adsorbents

Competitive adsorption of phenolic compounds from aqueous solution using sludge‐based activated carbon

Interaction of paracetamol and 125I-paracetamol with surface groups of activated carbon: theoretical and experimental study

Contact Info

Product

Resources

About