Adsorption of cephalexin from aqueous solution using natural zeolite and zeolite coated with manganese oxide nanoparticles

Samarghandi, Mohammad Reza; Al-Musawi, Tariq J.; Mohseni-Bandpi, Anoushiravan; Zarrabi, Mansur

doi:10.1016/j.molliq.2015.06.067

Cited by 172 publications

(65 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It can be seen that in binary system, the uptake of both nutrients occurred at a fast rate during the initial 15 min (fractional attainment of equilibrium >95%), followed by a slower process until equilibrium is reached. This behavior was also observed in the use of zeolites for the uptake of cephalexin, heavy metals, a cationic dye or phenol …”

Section: Resultsmentioning

confidence: 60%

Simultaneous recovery of ammonium and phosphate from simulated treated wastewater effluents by activated calcium and magnesium zeolites

You

Valderrama

Cortina

2017

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

BACKGROUND\ud \ud In this study a sodium zeolite synthesized from coal fly ash (NaP1-NA) was modified to calcium and magnesium forms (Ze-Ca, Ze-Mg) as sorbent materials for simultaneous recovery of ammonium and phosphate from simulated treated wastewater effluents.\ud RESULTS\ud \ud Increasing the temperature during the modification step to magnesium form improved the zeolite conversion. The maximum sorption capacities obtained were 123.1±9.1 mg NH4 g-1 and 119.5±7.5 mg PO4 g-1 in an ammonium/phosphate binary system for Ze-Ca, while 55.2±2.4/ 60.5 ±14.1 and 32.3±4.4/ 23.9±3.4 were obtained for Ze-Mg1 and Ze-Mg2, respectively. The sorption process is faster for Ze-Mg zeolites and the sorption mechanism that controls the overall process, for both zeolites, is diffusion into the particle according to the HPDM and SPM models.\ud CONCLUSIONS\ud \ud Salt modification improved the performance of zeolites towards phosphate sorption. The sorption mechanism involves both ammonium exchange to the Mg and Ca ions, and precipitation of Ca and Mg phosphates or mixed ammonium-magnesium phosphate minerals such as brushite (CaHPO4.H2O) and struvite (MgNH4PO4). © 2017 Society of Chemical IndustryPeer ReviewedPostprint (author's final draft

show abstract

Section: Resultsmentioning

confidence: 60%

Simultaneous recovery of ammonium and phosphate from simulated treated wastewater effluents by activated calcium and magnesium zeolites

You

Valderrama

Cortina

2017

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

show abstract

“…The maximum CEX removal efficiency was 28.0% and 89.0% for NZ (natural zeolite) and CZ (zeolite coated with manganese oxide nanoparticles), respectively, at pH 7 [10] Natural zeolite and zeolite coated with manganese oxide nanoparticles…”

Section: Mcm-41mentioning

confidence: 99%

“…The second way is the human releases from their excretions into domestic sewage considering that the biological treatment of sewage is not complete; the pharmaceuticals can be released into wastewater in metabolised or non-metabolised form. Most of the antibiotics are not biodegradable [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Removal of cephalexin from artificial wastewater by mesoporous silica materials using Box-Behnken response surface methodology

Panahi¹,

Ashrafi²,

Kamani³

et al. 2019

Desalination and Water Treatment

View full text Add to dashboard Cite

a b s t r a c tMesoporous silica such as MCM-41 was used as an adsorbent for the removal of cephalexin antibiotic from synthetic wastewater. In this study, MCM-41 adsorbent was synthesised and was characterised by FE-SEM, XRD, FTIR and isotherms of adsorption/desorption of N 2 . The effects of initial pH, adsorbent dose, initial adsorbate concentration, contact time and temperature on process efficiency were evaluated using Box-Behnken statistical experiment design (RSM). FTIR analysis revealed the Si-OH, H-O-H and Si-O-Si bonds are formed. According to BET surface area, MCM-41 had pores with a diameter of more than 2.0 nm and surface area of 1,097 m 2 g -1 and also XRD spectra showed the mean crystallite size of MCM-41 was 75 nm. The statistical results show that pH, adsorbent dose, initial antibiotic concentration, temperature and quadratic pH were significant and presented with probability <0.05. The optimum removal condition based on analysis of variance and the quadratic model was the initial pH of adsorbate solution fixed at 3.00, adsorbent dose 800 mg L -1 , the initial concentration of antibiotic at 50.0 mg L -1 , a temperature of 40.0°C, and at the adsorption time of 30.0 min. Under these conditions, the percentage removal of cephalexin antibiotic was 90.3%. Therefore, according to the obtained results, the mesoporous silica can be used to adsorb cephalexin antibiotic in optimal conditions designed by response surface methodology.

show abstract

“…However, application of commercially available ACs in large scale operations is infeasible due to their high cost. As a result, great effort has been extended in developing cost‐effective ACs from renewable sources . Agricultural and industrial wastes such as coconut shells, peach stones, macadamia nut shells, and sewage sludge, among others have been utilized effectively as cheap precursors of ACs.…”

Section: Introductionmentioning

confidence: 99%

Abatement of Amoxicillin, Ampicillin, and Chloramphenicol From Aqueous Solutions Using Activated Carbon Prepared From Grape Slurry

Chitongo

Opeolu

Olatunji

2018

CLEAN Soil Air Water

View full text Add to dashboard Cite

The adsorption of amoxicillin (AMX), ampicillin (AMP), and chloramphenicol (CHLR) from simulated antibiotic‐contaminated water using adsorbents prepared from grape slurry waste is studied. Batch adsorption experiments are carried out to evaluate the adsorption capacity of the adsorbents for AMX, AMP, and CHLR. Adsorption isotherms are described by the Langmuir and Freundlich isotherms, while the pseudo‐second order kinetics describe the sorption processes. Negative values of the enthalpy change show that the sorption processes are exothermic, and the positive values of the Gibbs free energy change indicates non‐spontaneous but feasible nature of the adsorption. The study shows that grape slurry waste could be a good precursor to prepare effective adsorbents for the remediation of antibiotic‐contaminated wastewater.

show abstract

Adsorption of cephalexin from aqueous solution using natural zeolite and zeolite coated with manganese oxide nanoparticles

Cited by 172 publications

References 34 publications

Simultaneous recovery of ammonium and phosphate from simulated treated wastewater effluents by activated calcium and magnesium zeolites

Simultaneous recovery of ammonium and phosphate from simulated treated wastewater effluents by activated calcium and magnesium zeolites

Removal of cephalexin from artificial wastewater by mesoporous silica materials using Box-Behnken response surface methodology

Abatement of Amoxicillin, Ampicillin, and Chloramphenicol From Aqueous Solutions Using Activated Carbon Prepared From Grape Slurry

Contact Info

Product

Resources

About