ADSORPTION OF DIRECT-RED-12-B BY BIOGAS RESIDUAL SLURRY - EQUILIBRIUMAND RATE-PROCESSES

Authors
NAMASIVAYAM C YAMUNA RT
Citation
C. Namasivayam et Rt. Yamuna, ADSORPTION OF DIRECT-RED-12-B BY BIOGAS RESIDUAL SLURRY - EQUILIBRIUMAND RATE-PROCESSES, Environmental pollution, 89(1), 1995, pp. 1-7
Citations number
28
Categorie Soggetti
Environmental Sciences
Journal title
Environmental pollution → ACNP
ISSN journal
02697491
Volume
89
Issue
1
Year of publication
1995
Pages
1 - 7
Database
ISI
SICI code
0269-7491(1995)89:1<1:AODBBR>2.0.ZU;2-#
Abstract
The rate of adsorption of Direct red 12 B, a direct dye, on biogas res idual slurry (BRS) has been studied. The parameters studied include dy e concentration, particle size, temperature and pH. The rate controlli ng step is mainly intraparticle diffusion, although a small boundary l ayer resistance is expressed. Almost total removal of dye occurred at pH 23. Adsorption of dye conforms with the Freundlich isotherm.