Overview: Fenton oxidation process generates OH with strong oxidation capacity in the presence of Fe+2 under acidic conditions, and triggers more other reactive oxygen species to degrade organic matter. The oxidation process is a chain reaction. The chain begins with the production of .OH, while other reactive oxygen species and reaction intermediates form the nodes of the chain, and each reactive oxygen species is consumed and the reaction chain terminates. The reaction mechanism is more complex, these reactive oxygen species only supply organic molecules and mineralize them into inorganic substances such as COz and H2O2,.OH produced in the reaction is a very active and non-selective species with an oxidation potential of 2.8V, which can cause most of the organic matter in the aqueous solution to be degraded by redox reaction, and promote its cracking and polymerization, so as to effectively reduce the chroma, COD and TOC of the wastewater, and sianificantly improve the biodegradability of the wastewater, Therefore, Fenton oxidation process has become one of the important advanced oxidation technologies.

Advantages ①The reaction starts quickly, the reaction is in an acidic environment, normal temperature and pressure, and the conditions are mild. ②There is no need to desian a complex reaction system, the researchers believe that Fenton reagent has strong oxidizing properties, the reaction process can completely make the pollutants harmless during the reaction process, and the oxidizing agent H2Oz,the residue after participating in the reaction can be decomposed by itself, leaving no residue, but also a good flocculant, with good effect.