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Water Science and Technology

Volume 41 Number 7

Contents

1–7
Risk assessment model for a waterborne outbreak of cryptosporidiosis
P. Gale
9–16
The effect of preozonation on microorganism and particle removal
J.Y. Gaubert, C. Piet, D. Gatel, P. Bonne, J. Hutchison and J. Cavard
17–22
Performance testing and operational experience of a Fibrotex plant installed to treat a 40 Ml/d groundwater source
J. Hutchison, D. Horner and G. Pearce
23–29
Impact of purification procedures on the viability and infectivity of Cryptosporidium parvum oocysts
T.R. Slifko, A. Coulliette, D.E. Huffman and J.B. Rose
31–37
Impact of a wastewater treatment plant on Cryptosporidium oocysts and Giardia cysts occurring in a surface water
E. Carraro, E. Fea, S. Salva and G. Gilli
39–46
Effects of ozonation and chlorination on viability and infectivity of Cryptosporidium parvum oocysts
T. Hirata, D. Chikuma, A. Shimura, A. Hashimoto, N. Motoyama, K. Takahashi, T. Moniwa, M. Kaneko, S. Saito and S. Maede
47–52
Synergism in sequential disinfection of Cryptosporidium parvum
J.L. Rennecker, B. Corona-Vasquez, A.M. Driedger and B.J. Mariñas
53–59
Ozonation of bromide-containing drinking waters:a delicate balance between disinfection and bromate formation
U. von Gunten and U. Pinkernell
61–66
Bromate formation under ozonation conditions to inactivate Cryptosporidium
G. Amy, C. Douville, B. Daw, J. Sohn, C. Galey, D. Gatel and J. Cavard
67–77
Cryptosporidium contamination hazard assessment and risk management for British groundwater sources
B.L. Morris and S.D. Foster
79–86
Source and occurrence of Giardia and Cryptosporidium in Paris rivers
V. Rouquet, F. Homer, J.M. Brignon, P. Bonne and J. Cavard
87–92
Examination of Giardia and Cryptosporidium in water samples and fecal specimens in Taiwan
B-M. Hsu, C. Huang, Y-F. Hsu and C-L.L. Hsu
93–101
Removal of Cryptosporidium by high rate contact filtration: the performance of the prospect water filtration plant during the Sydney water crisis
P. Mazounie, F. Bernazeau and P. Alla
103–110
An optimised and standardised test to determine the presence of the protozoa Cryptosporidium and Giardia in water
G. Stanfield, E. Carrington, F. Albinet, B. Compagnon, N. Dumoutier, B. Hambsch, A. Lorthioy, G. Medema, H. Pezoldt, M-R. de Roubin, A. de Lohman and T. Whitmore
111–117
Optimization of the Envirochek capsule method and immunomagnetic separation procedure for the detection of low levels of Cryptosporidium in large drinking water samples
A. Pezzana, Ph. Vilaginès, F. Bordet, D. Coquard, B. Sarrette and R. Vilaginès
119–125
Inactivation of Cryptosporidium spp. oocysts with ozone and ultraviolet irradiation evaluated by in vitro excystation and animal infectivity
Y. Kanjo, I. Kimata, M. Iseki, S. Miyanaga, H.Okada H. Okada, C. Banno, M. Matsumoto and Y. Shimada
127–134
Inactivation of Cryptosporidium parvum oocysts and other microbes in water and wastewater by electrochemically generated mixed oxidants
M.J. Casteel, M.D. Sobsey and M.J. Arrowood
135–142
Enhanced particle removal in drinking water treatment plants – case studies
P. Lipp and G. Baldauf
143–147
UKWIR initiatives for implementing expert group recommendations to minimise Cryptosporidium risk in water treatment–a summary review
T. Hall, R. Head and D. Holt
149–158
Operation of modern day process plants – minimising Cryptosporidium risk
D. Edwards
159–163
Occurrence and separation of Cryptosporidium oocysts in drinking water treatment
P. Dolejš, O. Ditrich, T. Machula, N. Kalousková and G. Puzová
165–171
Removal of sulphite-reducing clostridia spores by full-scale water treatment processes as a surrogate for protozoan (oo)cysts removal
W.A. Hijnen, J. Willemsen-Zwaagstra, P. Hiemstra, G.J. Medema and D. van der Kooij
173–180
Development of a mathematical model of Cryptosporidium inactivation by ozonation
I. Somiya, S. Fujii, N. Kishimoto and R-H. Kim
181–188
Development of ATP assay as a surrogate indicator of viability of Cryptosporidium parvum oocysts
I. Somiya, S. Fujii, N. Kishimoto and R-H. Kim
189–196
Influence of US EPA 1622 method successive steps on the viability of Cryptosporidium oocysts
K. Guyot, M.F. Gireaudot-Liepmann, A. Cabon, I. Riveau-Ricard, M. Lange, J.M. Delattre and E. Dei-Cas
197–202
Enumeration of Cryptosporidium oocysts from surface water concentrates by laser-scanning cytometry
F. Zanelli, B. Compagnon, J.C. Joret and M.R. de Roubin
203–211
Elimination of Giardia cysts, Cryptosporidium oocysts, turbidity and particles in a drinking water treatment plant with clarification and double filtration
F. Ribas, A. Bernal and J. Perramón