Browse > Article

Evaluation of Physical Properties and Adsorption Capacity of Regeneration GAC  

Mun, Ji-Young (한국수자원공사 수도관리처)
Chae, Seon-Ha (한국수자원공사 K-water연구원)
Wang, Chang-Keun (충남대학교 환경공학과)
Publication Information
Journal of Korean Society of Water and Wastewater / v.23, no.4, 2009 , pp. 407-416 More about this Journal
Abstract
The objective of this study was to evaluate the variation of physical properties and adsorption capacity after regeneration of Granular Activated Carbon (GAC). It was found that the loss rate of regenerated carbon was related to the usage time of GAC. The correlations between iodide number and loss rate also determined. Effective size and uniformity coefficient for regenerated GAC were within a similar range compared to virgin GAC. This result indicated that the function as media is recovered. Although iodide number and specific surface area for regenerated GAC were not completely recovered compared to that of virgin GAC, cumulative pore volumes of regenerated GAC were increased. Removal efficiency of organic matter in regenerated GAC was resulted the same or slightly higher than that of virgin GAC. This result indicates that the number of mesopore responsible for removal of organic matter was increased after regeneration.
Keywords
Granular activated carbon (GAC); Regeneration; Adsoprtion;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Steven D. Lambert, Guillermo San Migule and Nigel J.D. Graham (2002) Deleterious effects of inorganic compounds during thermal regeneration of GAC; A review, J. of AWWA, 94(12), pp. 109-119
2 Roskill (1994) The Economics of Activated Carbon. 5th edition, Roskill information Service Ltd., London
3 Knappe D. R. U., Snoeyink V. L., Roche P., Prados M. J. and Bourbigot M. M. (1997) The Effect of Preloading on Rapid Small-scale Column Test Predictions of Atrazine Removal by GAC Adsorbers, Water research, 31(11), pp. 2899-2909   DOI   ScienceOn
4 San Miguel G. (2001) The Regeneration of Field-spent Granular Activated Carbons, Water Research, 35(11), p2740   DOI   ScienceOn
5 Summers R. S., S. Hopper and S. Hong (1996) GAC Precursor Removal Studies, ICR Manual for Bench- and Pilot-Scale Treatment Studies. EPA 814-B-96-003, USEPA, Office of Water
6 Pilard M (1995) Impact of Mineral Elements on the Regeneration Process of Activated Carbon Used in Potable Water Treatment, Water Supply, 3:3/4:1