Adsorptive treatment via simultaneous removal of copper, lead and zinc from soil washing wastewater using spent coffee grounds.
Adsorption
Coffee
/ chemistry
Copper
/ analysis
Environmental Restoration and Remediation
Hydrogen-Ion Concentration
Kinetics
Lead
/ chemistry
Metals, Heavy
/ analysis
Soil
/ chemistry
Thermodynamics
Waste Disposal, Fluid
/ methods
Wastewater
/ chemistry
Water Pollutants, Chemical
/ analysis
Zinc
/ chemistry
Journal
Water science and technology : a journal of the International Association on Water Pollution Research
ISSN: 0273-1223
Titre abrégé: Water Sci Technol
Pays: England
ID NLM: 9879497
Informations de publication
Date de publication:
Mar 2019
Mar 2019
Historique:
entrez:
10
5
2019
pubmed:
10
5
2019
medline:
14
6
2019
Statut:
ppublish
Résumé
In the present work, the performance of spent coffee grounds (SCG) as an adsorbent in the treatment of real soil washing wastewater (SWW) was evaluated. Scanning electron microscopy, Fourier transform infrared spectroscopy, zeta potential measurement and Brunauer-Emmett-Teller analysis were utilized to determine the physicochemical characteristics of SCG. Maximum removal efficiency of 68.73% for Cu(II), 57.23% for Pb(II) and 84.55% for Zn(II) was attained at 2.5 g SCG, 300 min and 328 K. Error analysis was performed using root mean square error (RMSE) and sum of square error (SSE). Equilibrium data correlated well with the Langmuir isotherm for Pb(II) adsorption and Freundlich model for the removal of Cu(II) and Zn(II). The kinetic study shows that adsorption of the heavy metals using SCG can be satisfactorily described using the pseudo-second order equation (R
Identifiants
pubmed: 31070583
doi: 10.2166/wst.2019.087
doi:
Substances chimiques
Coffee
0
Metals, Heavy
0
Soil
0
Waste Water
0
Water Pollutants, Chemical
0
Lead
2P299V784P
Copper
789U1901C5
Zinc
J41CSQ7QDS
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM