A high-concentration organic wastewater treatment and energy recovery system

Abstract

This invention provides a high-concentration organic wastewater treatment and energy recovery system, relating to the field of wastewater treatment technology. It includes an air flotation tower, a wet oxidation reactor, a gas-liquid separator, a wastewater anaerobic tower, and a gas-fired boiler. The first output end of the air flotation tower is connected to the first input end of the wet oxidation reactor. The output end of the wet oxidation reactor is connected to the input end of the gas-liquid separator via a heat exchange component. The first output end of the gas-liquid separator is connected to the input end of the wastewater anaerobic tower. The first output end of the wastewater anaerobic tower is connected to the first input end of the gas-fired boiler, and the first output end of the gas-fired boiler is connected to a steam pipe. In this invention, pressurized wastewater separated by the gas-liquid separator flows into the wastewater anaerobic tower through the first output end of the gas-liquid separator. The wastewater pressure promotes mixing and agitation of the wastewater within the anaerobic tower, thereby fully utilizing the wastewater pressure energy and achieving effective recovery of the wastewater pressure energy, further reducing treatment energy consumption and saving operating costs.

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