Method for purification of water and water purification system

A method for purification of water using a water purification system wherein the water purification system comprises:

• a first mixing reactor, a first flotation reactor, a first filter, a second mixing reactor, a second flotation reactor, and a second filter, all serially and fluidly connected in this order in a flow direction of the water, as well as an electrolyzer comprising a cathode chamber and an anode chamber, the method comprising the following steps:
• electrochemically synthesizing a catholyte and an anolyte each containing reagents in the cathode chamber and the anode chamber of the electrolyzer, respectively,
• dosing of one of the electrochemically synthesized catholyte and anolyte into the water and mixing the one of the catholyte and anolyte with the water in the first mixing reactor,
• passing the flow of the treated water leaving the first mixing reactor through the first flotation reactor and through the first filter,
• dosing of the other one of the electrochemically synthesized catholyte and anolyte into the treated water leaving the first filter and mixing the other one of the catholyte and anolyte with the water in the second mixing reactor, and
• passing the flow of the treated water leaving the second mixing reactor through the second flotation reactor and through the second filter.