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Risikovurdering af Giardia og Cryptosporidium i vand
Bilag C
1 Reduktionsfaktorer
Tabel 2 Rensning for Cryptosporidium i vand (citeret i Standridge, 2001)
| Type af anlæg |
Eksperimentelt
design |
Fjernelse log10
(procent) |
Reference |
| Koagulering + sedimentation + filtrering |
Pilot anlæg |
4,2-5,2 |
Patania et al., 1995 |
| Koagulering + sedimentation + filtrering |
Pilot anlæg |
>5,3 |
LeChevallier et al., 1991 |
| Koagulering + sedimentation + filtrering |
Pilot anlæg. Baseret på reservoir og flodvand |
2,1-2,8 |
Nieminski, 1995 |
| Koagulering + sedimentation + filtrering |
Fuld skala |
1,9-4,0 |
Nieminski & Ongerth, 1995 |
| Koagulering + sedimentation + filtrering |
Fuld skala |
<0,5-3,0 |
LeChevallier et al., 1991 |
| Direkte filtrering |
Fuld skala |
1,3-3,8 |
Nieminski & Ongerth, 1995 |
| Langsomt sandfilter (overfladevand) |
Fuld skala |
(>99,997%) |
Timms et al., 1995 |
| Langsomt sandfilter |
Pilot anlæg |
>3,7 |
Schuler et al., 1988 |
| Diatomaceaous jord filtrering |
Pilot anlæg |
>4,0 |
Schuler et al., 1988 |
| Koagulering + mikrofiltrering |
Pilot anlæg |
>6,0 |
Jacangelo et al., 1995 |
| Ultrafiltrering |
Pilot anlæg |
>6,0 |
Jacangelo et al, 1995 |
1.1 Referencer
Jacangelo J.G., S. S. Adham, and J. M. Laine. Mechanisms of Cryptosporidium, Giardia and MS2 virus removal by MF and UF. Journal AWWA 87 (9):107-121, 1995.
LeChevallier M.W., W.D. Norton, R.G. Lee, J.B. Rose. Giardia and Cryptosporidium in water supplies. AWWARF and AWWA, Denver, CO. 1991.
Nieminski E. C. and J. E. Ongerth. Removing Giardia and Cryptosporidium by conventional treatment and direct filtration. Journal AWWA 87 (9):96-106, 1995.
Nieminski E. C. Giardia and Cryptosporidium cysts removal through direct filtration and conventional treatment. Ann. AWWA conf. New York, NY, June 19-23, 1994. Anonymous. Anonymous. 1995.
Patania N. L., JG Jacangelo, L. Cummings, A. Wilczak, K. Riley, and J. Oppenheimer. Optimization of filtration for cyst removal. Final report. Anonymous. Anonymous. Denver, Co.:AWWARF. 1995.
Schuler P. F., M. M. Ghosh, and S. N. Boutros. Comparing the removal of Giardia and Cryptosporidium using slow sans and diatomaceous earth filtration. Proc. AWWA. Anonymous. Anonymous.
1988.
Timms S., J. S. Slade, and C. R. Fricker. Removal of Cryptosporidium by slow sand filtration. Water Science and Technology 31 (5-6):81-84, 1995.
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Version 1.0 Februar 2006, © Miljøstyrelsen.
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