Adsorption of Cu(II) by intact and modified activated carbon
Închide
Articolul precedent
Articolul urmator
322 1
Ultima descărcare din IBN:
2023-03-14 14:24
Căutarea după subiecte
similare conform CZU
54.06:546.562:661.183.2 (1)
Analiză, investigae și manipulare în general (25)
Chimie anorganică (444)
Produse chimice (89)
SM ISO690:2012
CIBOTARU, Silvia. Adsorption of Cu(II) by intact and modified activated carbon. In: Ecological and environmental chemistry : - 2022, Ed. 7, 3-4 martie 2022, Chișinău. Chisinau: Centrul Editorial-Poligrafic al USM, 2022, Ediția 7, Vol.1, pp. 202-203. ISBN 978-9975-159-07-4.. 10.19261/eec.2022.v1
EXPORT metadate:
Google Scholar
Crossref
CERIF

DataCite
Dublin Core
Ecological and environmental chemistry
Ediția 7, Vol.1, 2022
Conferința "Ecological and environmental chemistry 2022"
7, Chișinău, Moldova, 3-4 martie 2022

Adsorption of Cu(II) by intact and modified activated carbon

CZU: 54.06:546.562:661.183.2

Pag. 202-203

Cibotaru Silvia
 
Institute of Chemistry
 
Proiecte:
 
Disponibil în IBN: 18 martie 2022


Rezumat

Heavy metal containing wastes are considered to be hazardous to both human life and the environment due to their acute toxicity and non-biodegradability, even when the heavy metals are presented at trace concentrations. A common method for heavy metal removal from water is the ion exchange. One potential application of the adsorbents for heavy metal removal is the treatment with the activated carbon. Adsorption is a very effective process for a variety of applications, and now it is considered an economical and efficient method for metal ions removal from wastewaters. The most generally used solid adsorbent is the activated carbon, which is used as a very efficient solid adsorbent in many different applications. The adsorption processes were carried out at room temperature (20±2°C) at the initial metal concentration of 100 mg/L. The process was studied for ions of Cu(II), varying the concentrations of solutions in the limits of 10-180 mg/L. The samples were stirred up on a shaker for 20 h. It was studied the kinetics of the adsorption starting with 0,5 h till 24 h. Then it was continued with the adsorption of Cu(II) at different pH 203 *Caom* = Activated carbon obtained from Wood coal (to fire up). *CA-M* = Activated carbon obtained from apple tree wood substance. *CA-M-30* = Reactivated sample ,,CA-M‖ by heating for 30 min. *Caom/Np *and *CA-M-30/Np* are samples with nanoparticles. The objective of this study was the modification with magnetic nanoparticles of the surface of the activated carbon, for the removal of heavy metals from aqueous media. In this paper, the adsorption ability of intact or modified activated carbon was investigated for removal of Cu(II) from aqueous systems. Results of the initial screening determined the adsorbents used in further kinetic and isotherm studies, as well as the investigating of the effects on adsorptive performance from pH changes.