Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 170, Issue 1, Pages 134-140Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2009.04.123
Keywords
Bromate removal; Granular ferric hydroxide (GFH); Sorption isotherms; Equilibrium and kinetic modeling; Adsorption mechanism
Categories
Funding
- Basic Science Programs funded by the Ministry of Science & Technology (MOST) of Korea [R01-2006-000-10250-0]
- Brain Korea-21 (BK-21) of Ministry of Education & Human Resource Development
- National Research Foundation of Korea [R01-2006-000-10250-0, 핵C6B1608] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Ask authors/readers for more resources
The feasibility of granular ferric hydroxide (GFH) for bromate removal from water has been studied. Batch experiments were performed to study the influence of various experimental parameters such as effect of contact time, initial bromate concentration, temperature, pH and effect of competing anions on bromate removal by GFH. The adsorption kinetics indicates that uptake rate of bromate was rapid at the beginning and 75% adsorption was completed in 5 min and equilibrium was achieved within 20 min. The sorption process was well described by pseudo-second-order kinetics. The maximum adsorption potential of GFH for bromate removal was 16.5 mg g(-1) at 25 degrees C. The adsorption data fitted well to the Langmuir model. The increase in OH peak and absence of Br-O bonding in MR spectra indicate that ion-exchange was the main mechanism during bromate sorption on GFH. The effects of competing anions and solution pHs (3-9) were negligible. Results of the present study suggest that GFH can be effectively utilized for bromate removal from drinking water. (C) 2009 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
