Abstract: The disclosure discloses a system for treating high-salt high-organic wastewater and recovering energy, the system includes a cold wall-type reactor (6), a multi-level cyclone separator (16, 19, and 25), a waste liquid feeding system, an oxidant feeding system and a fuel feeding system; The cold wall-type reactor designed by the disclosure is formed by inner and outer double-housing structures, a cooling medium is fed into a gap between the inner housing and the outer housing of the reactor, the fluid on an inner wall surface of the inner housing of the reactor is cooled below a supercritical temperature of the water by using countercurrent heat exchange, blockage of the inorganic salts is effectively prevented. The disclosure is capable of realizing gradient utilization of the reaction heat of the high-salt high-organic wastewater supercritical water oxidation system, and improving a system energy recovery utilization ratio in the greatest degree.

Abstract: The disclosure discloses a system for treating high-salt high-organic wastewater and recovering energy, the system includes a cold wall-type reactor (6), a multi-level cyclone separator (16, 19, and 25), a waste liquid feeding system, an oxidant feeding system and a fuel feeding system; The cold wall-type reactor designed by the disclosure is formed by inner and outer double-housing structures, a cooling medium is fed into a gap between the inner housing and the outer housing of the reactor, the fluid on an inner wall surface of the inner housing of the reactor is cooled below a supercritical temperature of the water by using countercurrent heat exchange, blockage of the inorganic salts is effectively prevented. The disclosure is capable of realizing gradient utilization of the reaction heat of the high-salt high-organic wastewater supercritical water oxidation system, and improving a system energy recovery utilization ratio in the greatest degree.

Abstract: The present invention relates to the technical field of wastewater treatment. In the present invention, the reactor is provided with a double-shell reactor, a coaxial nozzle, an inner shell structure, evaporated water injection pipes and the like, so it is assured that the wastewater is inject into the reactor at a room temperature and is degraded thoroughly; moreover, with the evaporated water, the corrosion, salt deposition and local overheating in the reactor are prevented, so that the reaction process is guaranteed to be stable and reliable. and through a fuel system, a hydrothermal flame is formed in the reactor, so that the concentrated waste liquid injected into the reactor at the room temperature can be preheated to a supercritical reaction temperature, and the waste liquid is prevented from coking, scaling and the like in a preheating stage.

Abstract: The present invention relates to the technical field of wastewater treatment. In the present invention, the reactor is provided with a double-shell reactor, a coaxial nozzle, an inner shell structure, evaporated water injection pipes and the like, so it is assured that the wastewater is inject into the reactor at a room temperature and is degraded thoroughly; moreover, with the evaporated water, the corrosion, salt deposition and local overheating in the reactor are prevented, so that the reaction process is guaranteed to be stable and reliable. and through a fuel system, a hydrothermal flame is formed in the reactor, so that the concentrated waste liquid injected into the reactor at the room temperature can be preheated to a supercritical reaction temperature, and the waste liquid is prevented from coking, scaling and the like in a preheating stage.