The role of collector surface charge heterogeneity on transport of Cryptosporidium parvum oocyst and carboxylate microsphere in 2-dimensional micromodels was studied. The cylindrical silica collectors within the micromodels were coated with 0, 10, 20, 50 and 100% Fe2O3 patches. The experimental values of average single collector removal efficiencies (?) of the Fe2O3 patches and on the entire collectors were determined. In the presence of significant (>3500 kT) Derjaguin–Landau–Verwey–Overbeek (DLVO) energy barrier between the microspheres and the silica collectors at pH 5.8 and 8.1, the values of ? determined for Fe2O3 patches were significantly less (p
Revised: April 1, 2013 |
Published: February 4, 2013
Citation
Liu Y., C. Zhang, D. Hu, M.S. Kuhlenschmidt, T.B. Kuhlenschmidt, S.E. Mylon, and R. Kong, et al. 2013.Role of collector alternating charged patches on transport of Cryptosporidium parvum oocyst in a patchwise charged heterogeneous micromodel.Environmental Science & Technology 47, no. 6:2670-2678.PNNL-SA-91345.doi:10.1021/es304075j