Method for treating high-concentration organic wastewater

The invention discloses a method for treating high-concentration organic wastewater, which comprises the following steps of: mixing high-concentration organic wastewater and conventional processing raw materials of a high-temperature liquid deslagging gasifier together to obtain slurry; and treating the slurry by the high-temperature liquid deslagging gasifier. Under the condition of basically not changing the process condition of the gasifier, the method disclosed in the invention can be used for treating high-concentration organic wastewater in a harmless way so that the high-concentration organic wastewater can reach a discharge standard more easily, therefore, the method has excellent environmental and economic benefits.