Circulating water washing system toilet

A circulating water washing system toilet configured to clarify soil water containing human wastes after having washed a toilet bowl and reuse the same as wash water, comprising:

• a clarification treatment apparatus configured to decompose the soil water discharged from the toilet bowl independently from a toilet bowl main body portion, the clarification treatment apparatus including a soil water storage tank configured to temporarily store the soil water, a first pump configured to pump up and deliver the soil water in the soil water storage tank, a reaction treatment tower having filter elements as a microorganism carrier configured to perform a biological treatment while dispersing the soil water delivered by the first pump on the filter elements and filtering the same, a water storage tank configured to receive and store water passing through the reaction treatment tower, and a second pump configured to pump up and deliver the water in the water storage tank as the wash water.