EDI plant water treatment module is usually placed behind the reverse osmosis system, which not only overcomes the lack of deep desalination of reverse osmosis effluent, but also further removes trace carbon dioxide, residual salt, silicon dioxide, boron and total organic carbon plasma in RO water, greatly improving the quality of purified water.
EDI plant water treatment is widely used in biotechnology, pharmacy and other industries that must generally comply with and comply with USP, EP, JP and ChP regulations.
※ Post EDI Ultrafiltration
※ A post EDI UF System with 6000 Daltons Molecular Weight Cutoff membranes serves to produce highly purified water having a compliance with low endotoxin values.
※ A post EDI UF can have a TOC reduction UV with 194 nm wavelength or 254 nm wavelength for bacterial control as an option.
Water inflow requirements | |
TEA（with CO2） | <25mg/L as CaCO3 |
Hardness | <1mg/L as CaCO3 |
TOC | <0.5mg/L |
Temperature | 5-43℃ |
PH | 5-9 |
Silicon | <0.5mg/L |
Free Chlorine | <0.05mg/L |
Water inlet pressure | 30-100psi |
Fe, Mn, H2S | <0.01mg/L |
Rate of recovery | 90-95% |
EDI stands for Electrodeionization, which is a water treatment technology that utilizes ion exchange membranes and an electric field to remove ions from water.
The EDI water treatment system is typically used to produce high-quality water for industrial and laboratory applications. The EDI plant water treatment system works by passing water through a series of ion exchange membranes and electrodes, which remove dissolved salts and other ions from the water.
Unlike other water treatment technologies, EDI water treatment does not require chemicals to regenerate the ion exchange resin, making it a more environmentally friendly option. EDI systems are also relatively compact and easy to maintain compared to other water treatment technologies.
Overall, EDI is an effective and efficient way to remove impurities from water, and it is commonly used in industries such as pharmaceuticals, electronics, and power generation.
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EDI Module Water Treatment | DOWNLOAD PDF |
Process Principles
Enhanced transfer regime (high salinity)
– Remove strong ions from water
Electroregeneration regime (low salinity)
– Remove ionizable species (weak acids or weak bases) from water
Coagulation/Flocculation: Chemicals are added to water to create tiny, sticky particles called "floc." These particles attract dirt, bacteria, and other impurities, forming larger particles.
Sedimentation: The water is then allowed to sit so that the larger particles (floc) settle to the bottom of the container due to their weight, forming sediment.
Filtration: The clarified water moves through filters made of sand, gravel, and charcoal to remove remaining smaller particles and impurities.
Disinfection: This step kills any remaining bacteria, viruses, and parasites that may be in the water. Common disinfection methods include chlorination, ultraviolet (UV) light treatment, or ozone treatment.
Storage and Distribution: After treatment, the water is stored in tanks or reservoirs.
The most cost-effective way to upgrade RO purified water system (PW) to high purified water system (HPW).
Effective minimum flow interlocking and current overload protection device.
Excellent water quality performance under different working conditions.
Front and rear UV devices (optional), thermal disinfection module (optional).
PLC+HMI full-automatic control mode.
Fully comply with GMP, USP and cGMP requirements.
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E-mail:
Address:
Room 1904, Building 10, No. 218, Jiqingmen Street, Jianye District, Nanjing, Jiangsu, China
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