| 摘要 |
PROBLEM TO BE SOLVED: To provide a flocculant injection control method and a flocculant injection control system that can appropriately set an aggregation condition depending on a flocculation characteristic of raw water to be treated.SOLUTION: Provided is a flocculant injection control system that controls injection of a flocculant to raw water to be treated. The system includes a zeta potential measuring means 51 that measures distribution of zeta potential of raw water, where a flocculant information holding means 100 is disposed in which data relating distribution of zeta potential of an injected flocculant obtained beforehand is set, and a flocculant injection ratio corresponding to measured distribution of zeta potential is calculated by an arithmetic means 21 using data set in the flocculant information holding means 100. |
