Depending on a variety of raw water quality and user requirements, preparation of ultra-pure water can be divided into pre-ultrapure water, desalination and finishing a three-step process. --EDI 1 ultra-pure water equipment, pretreatment including sand filters, multi-media filtration, softening, chlorine, adjusting pH, activated carbon filtration, degassing. 2, including electrodialysis desalination, reverse osmosis, ion exchange. Electrodialysis principle under external electric field effect by cation and anion exchange membranes for ion-selective transmission, desalination rate of 95%. Reverse osmosis is added to the concentrated solution of pressure on the side of the solvent from the concentrated solution through a semipermeable membrane to dilute the solution side of the reverse osmosis EDI ultra-pure water equipment Buying Yunnan, desalination up to 98%, and can remove 99 percent of bacteria particles and dissolved organic matter in the water. Ion exchange principle is that when water is passed through a cation exchange resin, the cation is a cation exchange resin in water adsorption, the resin exchangeable cations such as H ions are replaced to Yunnan EDI ultra-pure water equipment manufacturers, and combined into the water and anion corresponding inorganic acid. Yunnan EDI ultra-pure water equipment that contains an inorganic acid, and when the next anion exchange resin layer by EDI Yunnan wholesale, anion water, ultra-pure water equipment is an anion exchange resin. - EDI ultra-pure water equipment 3, the polishing resin exchangeable anions such as OH ions are replaced into the water, combined with water H ions into the water, that ultrapure water polishing includes ultraviolet disinfection, membrane filtration and ultra terminal filter. EDI introduction (c) - EDI ultra-pure water equipment EDI technology is widely used in foreign countries have ten years time, mostly for the pharmaceutical industry, microelectronics industry, power generation, industrial and laboratory. In the surface cleaning, surface coating, electrolysis industry and chemical engineering to applications are becoming increasingly widespread. EDI device characteristics: 1, no chemical regeneration, save reserves and acid diluted acid transport facilities; 2, (safety) to avoid workers' exposure to acid, low operation and maintenance costs; 3, continuous operation, stable quality of water equipment ; 4, easy to implement automatic control, not because of regeneration downtime; 5, save water and regeneration regeneration sewage treatment facilities, water production rate (95%), small footprint; 6, a single modular device, flexible combination of various flows of water purification facilities; 7, the beginning of a large equipment investment. - EDI EDI ultra-pure water equipment, ultra-pure water equipment Yunnan | Guangzhou Tianshui | EDI Yunnan ultra-pure water equipment prices provided by the Guangzhou Environmental Protection Technology Co., Ltd. Tianshui. Tianshui Guangzhou Environmental Protection Technology Co., Ltd. (jintianshui2.1688.com/) is Guangzhou, the other leaders, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Guangzhou Tianshui leadership with the staff warmly welcome all inquiries negotiations to create Guangzhou Tianshui better future.