SCWO technology efficiently degrades organic waste

With the in-depth study of the supercritical water oxidation (SCWO) reaction mechanism, the successful development of pressure-resistant and corrosion-resistant materials, and the maturity of new reactor technologies, SCWO technology has been in the near future.

SCWO technology is a highly potential organic waste treatment technology, which is characterized by high efficiency and rapidity, especially in the treatment of refractory, toxic organic wastes and special hazardous wastes. SCWO refers to the oxidation of organic matter in water when the temperature and pressure are higher than the critical temperature and critical pressure of water. Due to its unique properties, supercritical water makes it an excellent reaction medium for the treatment of organic waste liquids and wastes. At present, the application of SCWO technology in environmental protection is mainly to degrade toxic and hazardous wastes, and can be widely applied to various types of high-concentration organic wastewater in high-emission industries.

In recent years, China has made great breakthroughs in the research and development of SCWO technology. Sanmenxia HD Environmental Protection Technology Co., Ltd. has conducted technical exchanges and cooperation with domestic colleges and universities, introduced, digested, and absorbed international advanced technologies and means, and developed SCWO technology with domestic independent intellectual property rights. The company produced a 5-liter/hour experimental facility for the Xi'an Aerospace Fourth Institute (Xi'an Aerospace Chemical Power Plant), which laid a solid foundation for the industrialization of the SCWO project.

At present, for the reasons that restrict the application of SCWO technology in large-scale industrialization in China, some experts have raised the problems of equipment corrosion, equipment and pipeline blockage due to precipitation of inorganic salts and metal oxides, high operating costs, and pointed out that in supercritical water oxidation During the reaction, the system carries a large amount of heat energy. If this part of heat energy can be efficiently recovered, the operating cost can be directly reduced, which will be beneficial to the promotion and industrial application of the technology in various industries.