Turbidity monitoring device

A turbidity monitoring apparatus comprising:

• a measurement container in which a fluid accommodation portion configured to accommodate a fluid to be measured is formed, the measurement container including an inlet pipe configured to supply the fluid to be measured to the fluid accommodation portion, and an outlet pipe configured to discharge the fluid to be measured to an outside of the measurement container;
• a wave source configured to irradiate a wave toward the fluid accommodation portion;
• and
• a detector configured to detect a laser speckle generated by multiple scattering of the irradiated wave in the fluid to be measured,
• wherein the measurement container includes
• a flow path formation portion formed on a side wall surface of the fluid accommodation portion, and configured to guide a flow of the fluid to be measured introduced through the inlet pipe, and
• the wave source and the detector are positioned adjacent to a surface of the measurement container on which the flow path formation portion is formed.