Fenton process

Chemical-physical purification systems with Fenton process

The organic substances and surfactants can be demolished (up to 90%) by the oxidation Fenton process, through the breakage of the long molecular chains by the radical OH* produced in the reaction among ferrous ions and hydrogen peroxide.

This technology consists in treating the wastewater with reagents that produce a radical oxidation reaction on the substrates with a long and complex molecular chain, partly disgregating the molecule.

The reaction is a radical oxidation, catalyzed by ferrous ions in acidic environment, with the use of hydrogen peroxide as an oxidant agent and producer / initiator of radicals that start a series of chain reactions.

All these reactions substantially produce a strong diminution of the molecular weights of the organic compounds and a subsequent oxidation of the latter with consequent diminution of surface-active agents in the treated waters.

In synthesis, the outstanding characteristics and principal advantages of the use of peroxide in the suitable combination with ferrous sulfate in the degradation of surface-active agents may be thus resumed:

1. Knocking-down of surface-active agents of:

2. Mineralization of the polluter with reduction of COD of about 40-60% and more

3. Maintaining of the purification independently from the polluting load

4. The polluting agent is chemically degraded and do not produce waste needing a separate treatment

Reagents which do not leave pollutant residues in the treated wastewater are used for this treatment..

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