Slow sand filtration definition

Slow sand filtration means a process involving passage of raw water through a bed of sand at low velocity (generally less than 0.4 meters per hour) resulting in substantial particulate removal by physical and biological mechanisms.
Slow sand filtration means a process:
Slow sand filtration means a process involving passage of source water through a bed of sand at low velocity (generally less than 0.10 gpm/ft2) that results in substantial particulate removal (˃ 2-log Giardia lamblia cysts) by physical and biological mechanisms.

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.


More Definitions of Slow sand filtration

Slow sand filtration means a process involving passage of source water through a bed of sand at low velocity (gener-
Slow sand filtration means a process involving passage of raw water through a bed of sand at low velocity (generally less than four-tenths (0.4) meter per hour or forty-five (45) to one hundred fifty (150) gallons per day per square foot) resulting
Slow sand filtration means a process involving passage of raw water through a bed of sand at low velocity resulting in substantial particulate removal by physical and biological mechanisms.
Slow sand filtration means a process involving passage of raw water through a bed of sand at low velocity (generally less than 0.4 meters per hour or
Slow sand filtration means a treatment process that involves the passage of raw water through a bed of sand at low velocity, generally less than 0.4 m/h, and results in substantial particulate removal by physical and biological mecha- nisms.
Slow sand filtration means a process of passing raw water through a porous granular medium, at a rate of less than one hundred fifty gallons per day per square foot of sand area, with substantial removal of particles by physical and biological mechanisms.
Slow sand filtration means a treatment process that involves the passage of raw water through a bed of sand at low velocity, generally less than 0.4 m/h, and results in substantial particulate removal by physical and biological mechanisms. “Small water system,” for R18-4-306 through R18-4-316 only, means a public water system that serves 3,300 or fewerpersons.‌