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Calculations
Recommendations
SALUTAR anaerobic filter
Mechanized mixer for flash mixing (Aquaflash) and flocculation (Aquafloc)
Determination of contact time - Ordinance GM/MS No. 888
Estimation of sludge production in water treatment plants
Venturi flow meter
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Water disinfection
Chlorine Disinfection
Chlorine Disinfection
Input data
Water flow rate
m³/s
m³/h
m³/d
L/s
L/h
L/d
gpm
gpd
gph
MGD
cfm
cfs
bpd
Contact time
s
min
h
d
year
Free chlorine residual
kg/m³
kg/L
g/L
mg/L
Water temperature
°C
°F
K
pH
-
-
Initial pathogen concentration
units/m³
units/L
units/mL
units/100mL
Specific lethality coefficient (Λ)
m³/kg.min
L/mg.min
Output data
CT value
s⋅kg/m³
mg⋅min/L
mg⋅s/L
mg⋅hr/L
ppm⋅min
ppm⋅s
ppm⋅hr
Log reduction
-
-
Final pathogen concentration (CFU)
units/m³
units/L
units/mL
units/100mL
Disinfection efficiency
%
Chlorine dosage required
kg/s
kg/h
kg/d
kg/year
ton/s
ton/h
ton/d
ton/year
Contact tank volume
m³
kL
L
mL
cm³
mm³
in³
ft³
yd³
gal (US)
gal (UK)
bbl (oil)
fl oz (US)
qt (US)
pt (US)
ac-ft