EDI RO system ultrapure water treatment plant for pharmaceutical applications

 EDI (Electrodeionization) is a revolutionary water treatment technology; it is a membrane filtration and desalination technology that skillfully combined the electrodialysis technology and ion exchange technology together, which is high-tech, green and eco-friendly technology.

EDI equipment uses the RO outlet water as feed water. The resistivity of RO outlet water is normally 40-2μS/cm (25℃), and the resistivity of EDI outlet water can normally reach 18MΩ.cm (25℃). According to the application of deionization water and the setup of the system, EDI outlet water can meet the requirements for resistivity of 1-18.2MΩ.cm (25℃).

EDI runs in a bacteriostatic service mode. The electric field minimizes bacteria growth in the resin beds. Some EDI devices are hot water sanitizable, resulting in more effective sanitization, faster rinseup and more easily validated systems. RO/EDI easily meets Stage 1 conductivity specification, while conventional 2-Pass RO (RO/RO) does not, due to CO2 and/or NH3.

Reverse osmosis systems are used to purify water and remove salts and other impurities from tap and brackish water. It is also capable of rejecting bacteria, sugars, proteins, particles, dyes, and other constituents that have a molecular weight of greater than 150-250 dalton. Our largest tap and brackish water units can come standard with media pre-filters, chemical dosing, and antiscalant. These systems are usually customized to fit individual customer and water application needs

When to Consider Using EDI Equipment
EDI may be considered to be a competitive alternate process to:

1. Regenerable mixed bed deionization 
1) No acid or caustic bulk storage, pumping, waste neutralization or disposal issues. 2) Lower operating cost due lower manpower requirements as well as the lack of chemical regeneration. 3) Smaller footprint.

2. Service mixed bed deionization (off-site regenerated rental vessels) 
1) No ionic breakthrough resulting in a constant high quality of water. 
2) No rental vessels, associated freight or monthly demurrage charges.

3. Second pass RO system
Eliminates the need for a second bank of RO membranes and associated plumbing, pumping and control equipment.

The above machine which we supply it to you, we can give you one years after sales warranty, we can also send our engineer to you factory to install this equipment and train your staff, but the Buyer should pay the round air ticket cost and arrange the hotel accommodation as well as the means for Seller’s engineer. We will send some free set of spare parts for you change it.