Examples of Slow sand filtration in a sentence
Slow sand filtration (as secondary filter) Monthly verification that both a slow sand filter and a preceding separate stage of filtration treated 100% of flow from subpart H sources.
Slow sand filtration or diatomaceous earth filtration.(1) Turbidity must be measured in the combined filter effluent as described in paragraphs 43.5(4)“a” and “b.”(2) The combined filter effluent turbidity limits of subrule 43.5(3) must be met.(3) The monthly reporting requirements are listed in subrule 43.10(6).c.
Slow sand filtration is typically used as a primary filtration process, usually in small systems, rather than as a secondary filtration stage following conventional treatment or another primary filtration process.
Slow sand filtration is recommended only for higher quality source waters, and water quality following a primary filtration process would be well within recommended design limits for slow sand filtration (USEPA 1991a).
Slow sand filtration is a process involving passage of raw water through a bed of sand at low velocity (generally less than 0.4 m/h), resulting in substantial particulate removal.