The invention discloses a Fenton technology based
sewage treatment system and a treatment method thereof. The
treatment system comprises a sand filtering tank, a Fenton reactor, a reaction tank and aclean water tank which are sequentially connected, wherein the sand filtering tank has a structure for
trapping pollutants from
sewage; the Fenton reactor is used for producing hydroxyl free radicalsin a manner that
activated charcoal serves as a catalyst and reacts with
hydrogen peroxide; the reaction tank is used for removing superfluous
hydrogen peroxide from the Fenton reactor; the
clean water tank is used for adjusting a pH value of the
sewage in the
clean water tank. According to the Fenton technology based
sewage treatment system and the treatment method thereof, the design is ingenious,
activated charcoal serves as an adsorbent and also serves as a catalyst; on one hand, pollutants can be enriched through an adsorptive action, and the content of the pollutants is lowered; meanwhile, the
activated charcoal catalyzes H2O2 to form .OH free radicals, the .OH free radicals fully react with and degrade the pollutants, and the reaction efficiency is greatly increased; furthermore, the activated
charcoal does not participate in a reaction as a reactant during reaction, and the amount of the activated
charcoal cannot be reduced along with the reaction, so that the consumption of agents is greatly lowered, tedious operations of repeatedly adding the agents are saved; meanwhile, the yield of
sludge is reduced, and the
operating cost is reduced.