WATER TREATMENT PROCESS BASED ON FENTON REACTION

摘要

The invention relates to a method for water purification based on the Fenton reaction the nature of which consists in that to the water adjusted to pH = 2.0 to 4.0 FeSO4.7H2O in an amount of 0.05 % to 0.40 % by weight, and H2O2 in an amount of 0.03 % to 0.45 % by weight are added, the composition is further mixed for 60 to 90 minutes at a temperature of 10 to 30 DEG C, and it is left to react for additional 10 to 35 minutes to finish the reaction, then it is neutralized to pH = 7.0 to 8.0, and further a flocculant, based on polyacrylamide copolymers, and/or a coagulant in an amount of 0.01 to 1.5 % by weight is added under intensive stirring, and the mixture is allowed to sedimentate for 0.5 to 3 hours, after which the cleaned water is separated from the sediment.