Slow sand filters covered by geotextiles

Klein, H.-P. / Berger, C. / International Water Supply Association | British Library Conference Proceedings | 1994

Slow sand filters covered by geotextiles

Klein, H.-P. / Berger, C. / International Water Supply Association | British Library Conference Proceedings | 1994

Behaviour of geotextiles as filters

D. A. Cazzuffi / A. Mazzucato / N. Moraci | NTIS | 1990

Foam protected slow sand filters

Glasgow, G. / Charalambides, P. / Kadianaki, C. et al. | British Library Conference Proceedings | 2001

Cleaning Philadelphia's Slow‐Sand Filters Mechanically

Schaut, Geoege G. | Wiley | 1926