Anaerobic treatment system and method for operating the anaerobic treatment system

Abstract

The object of the present invention is to provide an anaerobic treatment system and an operating method for the anaerobic treatment system that enable improved treatment efficiency by maintaining or improving the stirring efficiency inside the tank when performing anaerobic treatment using a carrier-type anaerobic treatment tank. [Solution] To solve the above problems, the present invention provides an anaerobic treatment system and a method for operating this anaerobic treatment system, comprising a carrier-type anaerobic treatment tank, a water to be treated introduction section for introducing water to be treated into the anaerobic treatment tank, and a circulation path for circulating treated water discharged from the anaerobic treatment tank, wherein the circulation path has a treated water introduction section for introducing treated water into the anaerobic treatment tank, and the treated water introduction section is provided above the water to be treated in the anaerobic treatment tank. According to the present invention, it is possible to improve the overall stirring efficiency in the anaerobic treatment tank, and consequently, an appropriate shear force is applied to the carrier. This makes it possible to improve the treatment efficiency in anaerobic treatment using a carrier.

Images