Supercritical water oxidation treatment method and system
A supercritical water oxidation and treatment system technology, applied in the direction of oxidation water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problem of large changes in chemical oxygen demand and salt content of organic wastewater, High cost of supercritical water oxidation treatment, system safety reduction and other issues, to achieve safe, reliable and effective operation, reduce construction costs, and ensure safe and stable operation
Active Publication Date: 2022-07-26
XI AN JIAOTONG UNIV
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[0005] The technical problem to be solved by the present invention is to provide a supercritical water oxidation treatment method and system for the above-mentioned deficiencies in the prior art, to solve the problem that the chemical oxygen demand and salt content of organic wastewater vary greatly, resulting in the cost of supercritical water oxidation treatment High and reduced system security issues
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[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0040] In the description of the present invention, it should be understood that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inside", "outside", "one side", "one end", "one side", etc. The orientation or positional relationship is only for the convenience of describing the present inventio...
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According to the supercritical water oxidation treatment method and system, a heat removal device and a preheating device are used for recovering reaction heat, and an emergency heat removal device and a water cooling wall are used for protecting safe operation of the system; the method has wide adaptability to organic wastewater treatment, is suitable for treatment of organic wastewater with various salt contents and chemical oxygen demand, effectively reduces the system construction cost, and realizes safe and reliable operation of the system.
Description
technical field [0001] The invention belongs to the technical field of supercritical water treatment of organic waste, and in particular relates to a supercritical water oxidation treatment method and system. Background technique [0002] There are many sources of organic wastewater, such as pharmaceutical wastewater, landfill leachate, food processing wastewater, papermaking wastewater, etc. The chemical oxygen demand of organic wastewater varies greatly, generally above 2000mg / L, but the concentration of some wastewater can reach dozens of high 10,000 mg / L. The composition of organic wastewater is complex. Taking pharmaceutical wastewater as an example, the main components of traditional Chinese medicine wastewater are sugars, cellulose, lignin, alkaloids, organic pigments, glycosides, etc. The main components of biopharmaceutical wastewater are sugars, proteins, lipids, etc. Classes and inorganic salts, etc. In addition, due to the different process conditions of differ...
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IPC IPC(8): C02F1/72C02F101/30
CPCC02F1/72C02F2101/30C02F2201/002Y02P20/54
Inventor 王树众张凡李艳辉段远望孙圣瀚李紫成耿一然
Owner XI AN JIAOTONG UNIV