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As membrane separation technology continues to mature, ultra-pure water production equipment used in the battery industry now often employs reverse osmosis filtration, or a process that starts with primary reverse osmosis followed by ion exchange mixed-bed (or electrodeionization EDI) treatment to produce ultra-pure water for this industry. Working principle of ultra-pure water equipment in the battery industry EDI is an advanced technology that combines electrodialysis with ion exchange. Through an electromagnetic field, this system utilizes the selective permeability of anion and cation exchange membranes as well as the ion-exchange capacity of ion exchange resins to achieve directed migration of ions. This process enables deep desalination of water. The system allows for continuous automatic regeneration of the resins, without the need to stop operation in order to use acid or alkali for regeneration, thus enabling the continuous production of high-quality pure water. Advantages of ultra-pure water equipment in the battery industry: A. No need for acid or base regeneration, no use of chemical agents, no discharge of acidic or alkaline wastewater; the production process causes no pollution at all, making it a form of clean production. B. No shutdown for regeneration is required, enabling continuous production of high-purity water with stable quality. C. It operates stably and reliably, reducing operational and maintenance costs. D. No personnel supervision is required, enabling easy automated control of the equipment. E. The equipment requires less floor space, reducing the area needed for workshop construction and saving on costs associated with site development. F. The control system for ultra-pure water equipment in the battery industry can be customized to meet the specific requirements of users. By utilizing advanced control software, it enables centralized online monitoring of key process parameters, thereby preventing human error and ensuring the long-term stable operation of the system in all aspects. The ultra-pure water equipment used in the battery industry is capable of removing conductive substances from the raw water, as well as suspensions, colloids, gases, and organic compounds present in it. The water produced by this equipment has very high quality. The ultra-pure water equipment manufactured by Lightlead Nanchang Water Treatment Equipment Company [www.nanchangshui.com] is widely used in various industries. I hope we can learn from each other, discuss together, and make progress as a group.