Recommendations
Sludge removal device for settling tank (BIOWASSERTRACK®)Water propertiesCircular weirAtmospheric pressure given altitudeSodium hydroxideDynamic viscosity of atmospheric air

Sodium hypochlorite: storage, preparation and dosing

Input data

Flow

Desired average concentration of chlorine in water (prechlorination)

Desired average concentration of chlorine in water (postchlorination)

Desired maximum concentration of chlorine in water (prechlorination)

Desired maximum concentration of chlorine in water (postchlorination)

Dilution ratio

Output data

Flow

Sodium hypochlorite consumption

Consumption of 50 L containers

Solution volume to be prepared

Prechlorination dosing flow

Postchlorination dosing flow

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.