Browse > Article

Transports of Ferrihydrite Colloids in Packed Quartz Sand Media  

Kim, Seok-Hwi (School of Civil and Environmental Engineering, Kunsan National University)
Gu, Baohua (Environmental Sciences Division, Oak Ridge National Laboratory)
Lee, Jae-Hoon (Department or Biosystems Engineering and Soil Science, University or Tennessee)
Wang, Wei (Environmental Sciences Division, Oak Ridge National Laboratory)
Park, Ki-Hoon (School of Civil and Environmental Engineering, Kunsan National University)
Kim, Kang-Joo (School of Civil and Environmental Engineering, Kunsan National University)
Publication Information
Journal of the Mineralogical Society of Korea / v.19, no.4, 2006 , pp. 231-238 More about this Journal
Abstract
Transports of heterogeneously charged particles were investigated based on column experiments. Synthesized mono-dispersed ferrihydrite (${\sim}100nm$) and amorphous $SiO_2\;({\sim}40nm\;and\;{\sim}80nm)$ particles, of which surfaces are oppositely charged under pH < 9.0 (ferrihydrite, positive; amorphous silica, negative), were used. $177{\sim}250{\mu}m$ quartz sand was used as a stationary matrix. The results show that even favorable particles (i.e., ferrihydrite) can show a conservative transport through the oppositely charged media (i.e., quartz) when they coexist with humic acid or with much greater number of oppositely charged particles. These results imply that transports of both negatively and positively charged contaminants may be possible at the same time under a condition of heterogeneous colloidal system.
Keywords
colloid; transport; humic acid; ferrihydrite; amorphous silica;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Hayward, S.B. (1984) Field monitoring of chrysotile asbestos in California waters. Journal of American Water Works Association, 76, 66-73
2 Pulse, R.W. and Powell, R.M. (1992) Transport of inorganic colloids through natural aquifer material: Implication for contaminant transport. Environmental Science and Technology, 26, 614-621   DOI
3 Zhuang, J., Flury, M. and Jin, Y. (2003) Colloid-facilitated Cs transport through water-saturated Hanford sediment and Ottawa sand. Environmental Science and Technology, 37, 4905-4911   DOI   ScienceOn
4 Litton, G.M. and Olson, T.M. (1996) Particle effects on colloid deposition kinetics: evidence of secondary minimum deposition. Colloid and Surfaces, 107, 273-283   DOI   ScienceOn
5 Keswick, B.H., Wang, D.S. and Gerba, C.P. (1982) The use of microorganisms as ground-water tracers: A review. Ground Water, 20, 142-149   DOI
6 Elimelech, M., Nagai, M., Ko, C.H. and Ryan, J.N. (2000) Relative insignificance of mineral grain zeta potential to colloid transport in geochemically heterogeneous porous media. Environmental Science and Technology, 34, 2143-2148   DOI   ScienceOn
7 Elimelech, M. and O'Melia, C.R. (1990) Kinetics of deposition of colloid particles in porous media. Environmental Science and Technology, 24, 1528-1536   DOI
8 Ryan, J.N., Elimelech, M., Harvey, R.W. and Johnson, P.R. (1999) Bactriophage PRDI and silica colloid transport and recovery in an iron oxide-coated sand aquifer. Environmental Science and Technology, 33, 63-73   DOI   ScienceOn
9 Chen, J., Gu, B., LeBoeuf, E.J., Pan, H. and Dai, S. (2002) Spectroscopic characterization of the structural and functional properties of natural organic matter fractions. Chemosphere, 48, 59-68   DOI   ScienceOn
10 Harvey, R.W. and George, L.H. (1989) Transport of micro spheres and indigenous bacteria through a sandy aquifer: results of natural- and forced-gradient tracer experiments. Environmental Science and Technology, 23, 51-56   DOI   ScienceOn
11 Nightingale, H.I. and Bianchi, W.C. (1977) Groundwater turbidity resulting from artificial recharge. Ground Water, 15, 146-152   DOI   ScienceOn