voima toolbox
Sign up
Sign in
U
Calculation
Calculate
Save results as spreadsheet
Calculations
Recommendations
UASB check-list: hydraulic parameters
Water properties
Velocity gradient in pipes and circular orifices
Atmospheric pressure given altitude
Sodium hydroxide
Dynamic viscosity of atmospheric air
Sodium hypochlorite: storage, preparation and dosing
Sodium hypochlorite: storage, preparation and dosing
Input data
Flow
m³/s
m³/h
m³/d
L/s
L/h
L/d
Desired average concentration of chlorine in water (prechlorination)
kg/m³
kg/L
g/L
mg/L
Desired average concentration of chlorine in water (postchlorination)
kg/m³
kg/L
g/L
mg/L
Desired maximum concentration of chlorine in water (prechlorination)
kg/m³
kg/L
g/L
mg/L
Desired maximum concentration of chlorine in water (postchlorination)
kg/m³
kg/L
g/L
mg/L
Dilution ratio
%
Output data
Flow
m³/s
m³/h
m³/d
L/s
L/h
L/d
Sodium hypochlorite consumption
m³/s
m³/h
m³/d
L/s
L/h
L/d
Consumption of 50 L containers
1/s
1/min
1/h
1/d
Solution volume to be prepared
m³/s
m³/h
m³/d
L/s
L/h
L/d
Prechlorination dosing flow
m³/s
m³/h
m³/d
L/s
L/h
L/d
Postchlorination dosing flow
m³/s
m³/h
m³/d
L/s
L/h
L/d
Description
Given:
the water flow to be treated
the desired pre and post-chlorination average and maximum dosing rates desired in water
the chlorine concentration % m/m in the solution to be prepared (dillution rate)
calculates:
the mass hypochlorite solution consumption (assumed solution concentration: 10%)
the volume hypochlorite solution consumption (assumed solution density: 1.20)
the hypochlorite solution volume to be prepared
the pre and post-chlorination dosing flows
References
VIANNA, Marcos R. Casas de química para estações de tratamento de água. 2. Ed..Nova Lima: Imprimatur, 2001. 190 p.