Haichuan Coin Freelancer: Consult on the price of electrodesalination equipment?

Please explain the solutions in detail: Currently, electrodesalination equipment mainly refers to electrodialysis (ED) and continuous EDI (Electrodeionization). Both types of equipment use anion and cation exchange membranes, under the action of a direct current electric field, to remove salts from water. ED is capable of desalinating water with high salt concentrations (15%-20% salinity), and it is typically used upstream of reverse osmosis； The fresh water chamber in EDI equipment is filled with resin and is primarily used for the production of ultra-pure water, usually downstream of reverse osmosis. ED appeared in China in the 1960s, primarily used for desalinating brackish water. However, due to high equipment costs, complex operation, and high operating expenses, it has been gradually replaced in the desalination market by methods such as reverse osmosis and ion exchange. However, in recent years ED has reappeared on the market. Where there is a need, there is a solution; in many cases, ED is more economical and environmentally friendly than reverse osmosis or ion exchange. This is true for applications such as desalination in high-salt environments, the separation of special materials, and the reuse of wastewater from reverse osmosis processes. Behind these industrial applications lies progress in ion exchange membrane technology as well as improvements in automation techniques. The core of ED equipment is the ion exchange membrane. In the domestic market, heterogeneous membranes (such as those produced by Shanghai Shanghua Water Treatment Materials Co., Ltd. and Hangzhou Lanran), semi-homogeneous membranes, and homogeneous membranes (produced by Beijing Tingrun, Shandong Tianwei Membrane, Hangzhou Water Treatment, as well as companies in Japan and Germany) are mainly used. Homogeneous membrane electrodialysis equipment requires a higher investment cost compared to heterogeneous membrane equipment, but under the same processing conditions, it consumes less energy and takes up less space. Currently, domestic membranes are primarily used in the domestic market, and the performance of the membranes produced by some companies has reached international standards. The main users of EDI equipment are industries such as pharmaceuticals and electronics; there are many small manufacturers in China, while the main foreign manufacturer is GE.