| 摘要 |
PROBLEM TO BE SOLVED: To suppress concentration fluctuations of a scale component of raw water that is supplied to a reverse osmosis membrane treatment apparatus, and prevent the occurrence of scale in the reverse osmosis membrane treatment apparatus.SOLUTION: There is provided a treatment method of wastewater in which wastewater including machinery cooling water blow water and boiler blow water, which is discharged from a waste materials incineration plant having a boiler, is treated by using a reverse osmosis membrane treatment apparatus 4, in which machinery cooling water blow water (CB) and boiler blow water (BB) which are discharged after every fixed time by a timer control is supplied to a raw water tank 1, mixed and pooled into raw water for reverse osmosis membrane treatment, a supply amount to the raw water tank 1 of the machinery cooling water blow water and a supply amount to the raw water tank 1 of the boiler blow water are set to a ratio in which the concentration of a scale component in the raw water for reverse osmosis membrane treatment does not exceed a predetermined set value, raw water for reverse osmosis membrane treatment in the raw water tank 1 is supplied to the reverse osmosis membrane treatment apparatus 4 and reverse osmosis treatment is performed.SELECTED DRAWING: Figure 1 |
