ELECTRA- Electrolytic Treatment
Electrolytic Cell reactors Consist of Three Stages
- Electrolyzer (Coagulation)
- Ionization (Oxidation )
- Flotation (Particles Floating & Skimmed)
- Electrocoagulation (Electrolyzer, Ionization, Flotation )
Electrocoagulation is a technique involving the electrolytic addition of coagulating metal ions directly from sacrificial electrodes. These ions coagulate with turbidity agents in the water, in a similar manner to the addition of coagulating chemicals such as alum and ferric chloride, and allow the easier removal of the pollutants. In the EC process, the coagulant is generated in situ by electrolytic oxidation of an appropriate anode material
ADVANTAGES OF ELECTROCOAGULATION
The advantages of electrocoagulation technology are given below:
- EC requires simple equipment and is easy to operate.
- Wastewater treated by EC gives clear, colorless and odorless water.
- Sludge formed by EC tends to be readily settable and easy to de-water because it is composed of mainly metallic oxides/hydroxides. Above all, it is a low sludge producing technique.
- Flocs formed by EC are similar to chemical floc, except that EC floc tends to be much larger, contains less bound water, is acid-resistant and more stable, and therefore, can be separated faster by filtration.