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 (m/h)) resulting in substantial particulate removal by physical and biological mechanisms.

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.

Slow sand filtration means a process involving pas- sage of raw water through a bed of sand at low velocity (generally less than 0.4 m/h) resulting in substantial particulate removal by physical and biological mechanisms.

Examples of Slow sand filtration in a sentence

• 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.

• Slow sand filtration used as a primary filtration process receives a prescribed 3-log Cryptosporidium treatment credit, as described in section IV.B.

• 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.

• An echo-technological alternative denominated Multiple Stage Filtration (Slow sand filtration plus pre- treatment) was selected to solve water quality problems.

• Slow sand filtration" means a process involving passage of raw water through a bed of sand at low velocity (less than 0.10 gallons per minute per square foot) resulting in substantial particulate removal by physical and biological mechanisms.

More Definitions of Slow sand filtration

Slow sand filtration means a process:

Slow sand filtration means a process involving passage of raw water through a bed of sand at low velocity (generally less than 0.4 m/h or 1 gal./ft2/h 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 235 gallons per square foot per day) resulting in substantial particulate removal by both 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 m/h (0.02 ft/min)) 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 rates not to exceed 0.10 gallons per minute per square foot 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 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.