The removal of dyes from water by modified bentonite
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Tarih
2004
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Parlar Scientific Publications (P S P)
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Colour removal is an important task in textile waste-water treatment. Dodecylammonium bentonite (DOB) was used as sorbent for reactive blue 160 (RB), reactive yellow 84 (RY), direct blue 71 (DB), and direct yellow 50 (DY). Langmuir and Freundlich sorption parameters were calculated and the adsorption data fitted well to the Langmuir isotherm. The monolayer adsorption capacity of DOB increases and follows the orders RB>RY>DB>DY and DB>RB> RY> DY for the dyes at 298 K and 308 K, respectively. The thermodynamical equilibrium constant (KO), standard free energy (DeltaG(0)), enthalpy (DeltaH(0)) and entropy (DeltaS(0)) changes have been also calculated to predict the nature of adsorption.
Açıklama
Anahtar Kelimeler
Adsorption, Organic Pollutants, Organo-Clay, Bentonite, Water Treatment, Dye Wastewater, Thermodynamical Parameter
Kaynak
Fresenius Environmental Bulletin
WoS Q Değeri
Q4
Scopus Q Değeri
N/A
Cilt
13
Sayı
12B
