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Results 21 - 30 of 51: (Number of pages: 6)

21. Computer Programs on Declining Rate Infiltration (1993)
    Afridi, Najmul Sahar
22. Polystyrene as a roughing filter medium (1995)
    Tebbutt, Melvin
23. Removal of algae in Wennappuwa water supply scheme, Sri Lanka (1986)
    Lamabadusuriya, T.P.
24. Comparison slow sand filtration and conventional treatment (1989)
    Abidin, Abdul Razak Zainal
25. Declining rate filters (1987)
    Alofe, M.O.
26. Report on study of pond sand filters (1991)
    WHO/DPHE/UNICEF
27. Water filter for your home. Technical guide (1987)
    Sadzik, P.; National Institute for Water Research; CSIR; Appropriate Technology Division; South Africa, Department of Health and Population Development
28. Performance of sari cloth protected biosand filter (2008)
    Jirma, H.A.
29. Small scale water purification for low income communities in Ethiopia (1998)
    Gebru, Debru B.
30. A review of slow sand filtration in Zimbabwe (1987)
    Murungweni, L.N.

 

 

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