Arsenic-containing organic wastewater treatment system

The utility model relates to an arsenic-containing organic wastewater treatment system which comprises a wastewater pool and further comprises a first stirring barrel connected with a pipeline of thewastewater pool, and an acid adding pipe is arranged in the first stirring barrel; the nano-iron in-situ generation plasma reactor can release nano-iron particles to the wastewater and is provided with a water inlet and a water outlet, and the water inlet is connected with the first stirring barrel through a pipeline; the mixed reaction barrel is connected with a water outlet pipeline of the nano-iron in-situ generation plasma reactor, and a hydrogen peroxide adding pipe is arranged in the mixed reaction barrel; the second stirring barrel is connected with the mixing reaction barrel through apipeline, and an alkali adding pipe is arranged in the second stirring barrel; the third stirring barrel is connected with the second stirring barrel through a pipeline, and a flocculating agent adding pipe is arranged in the