Method for treatment of high-salinity and high-concentration organic wastewater through process of high-efficiency photocatalytic vacuum separation of gas phase, liquid phase and solid phase

The invention relates to a method for treatment of high-salinity and high-concentration organic wastewater (wherein salts can be NH4Cl, MgCl2, MgSO4, NaCl, Na2SO4, Na2HPO4 and the like) through a series of processes comprising pretreatment, pH adjustment, high-efficiency photocatalytic separation of gas phase, liquid phase and solid phase and advanced treatment. When the invention is used, the effluent quality can meet the requirements of secondary discharge standards of the category of petroleum and chemical in the Integrated Wastewater Discharge Standard (GB8978-1996), and salt can be recycled from wastewater. In addition, in order to avoid secondary pollution, the invention realizes the photocatalytic treatment of exhaust generated by the high-efficiency photocatalytic separation of the gas phase, the liquid phase and the solid phase, and most of the organic substances in the exhaust can be degraded to remove odor. Moreover, the invention proposes the view of treating waste with waste, namely, feeding the