| abstract |
The filtration treatment system includes a membrane filtration device 12 as a prefiltration means for removing insoluble components from the water to be treated containing organic matter, a reverse osmosis membrane treatment device 16 for treating the prefiltration treatment water with reverse osmosis treatment, , And a medicament supply means for supplying a medicament to the membrane filtration device (12) is provided, wherein the medicament contains a bromine-based oxidizing agent or a reaction product of a bromine compound and a chlorine-based oxidizing agent and a sulfamic acid compound, Or a reaction product of a bromine compound and a chlorine-based oxidizing agent and a reaction product of a sulfamic acid compound. |