1000LPH EDI Water Treatment Plant Industrial Filtration

Industrial Filtration EDI Equipment Edi System Water Treatment System

Product Descriptions of EDI Water Treatment Plant

In EDI high purity water is produced by combining ion exchange resin with ion exchange membranes inside a stack. Ions are removed from the water using a DC CURRENT. This DC CURRENT also continuously regenerates the ion exchange resin without using regeneration chemicals.

Reverse osmosis (RO) permeate enters the EDI stack in the figure below. Initially ion exchange occurs with the ion exchange media in the dilute compartments. Under the influence of an applied electrical potential, ions move towards their respective electrode. Cations in the diluting compartment move towards the cathode and pass through the cation membrane into a concentrate compartment. These cations are trapped in the concentrate compartment as they cannot pass the anion membrane. Anions move in the reverse direction towards the anode and are similarly trapped in the concentrate compartment. A small fraction of the RO permeate flushes the ions out of the concentrate compartments, producing the concentrate stream. Water splitting produces H+ and OH− ions providing continuous regeneration of the resin in the dilute compartments. On the concentrate side H+ and OH− recombine to produce H2O.

The main flow is the RO permeate that is converted to high purity product water in the dilute compartment (D). A small fraction of the RO permeate is used to flush the concentrate (C) and electrode (E) compartments. The concentrate flow leaving the stack contains the majority of the impurity ions present in the RO permeate. The electrode flow is a small flow of water that has been in contact with the electrode and contains impurities from the electrode reactions. Under most conditions the concentrate and electrode flows can be returned to the RO feed water tank to improve overall system recovery.

Product Technical Parameters of EDI Water Treatment Plant

Process Characteristics of EDI Water Treatment Plant

EDI process using an ion selective membrane and ion exchange resin under dc voltage is sandwiched between two electrodes, between between the poles of dc electric field from the RO water processed by the removal of ions, EDI process system instead of the traditional hybrid resin bed to make deionized water, with ion exchange mixed bed big difference is that EDI can continuous to ion process, High degree of automation, and does not need acid and alkali regeneration.

Advantages of EDI compared with traditional mixed bed:

The advantages of continuous desalting by electrodialysis and deep desalting by ion exchange are retained;

Compared with ordinary ion exchange resin column, the amount of ion exchange resin is less, saving more than 95% of resin;

Ion exchange resin does not need acid and alkali chemical regeneration, saving a lot of acid and alkali and cleaning water, greatly reducing labor intensity;

No waste acid waste lye discharge, is clean production technology, green environmental protection products;

The process is easy to realize automatic control, EDI and reverse osmosis (RO), UF and other water treatment technology combined, can form a perfect high pure water production line;

Small footprint, and do not need to be like ion-exchange beds, a set of in-use, a set of regeneration of the repeated Settings.

Application of EDI Water Treatment Plant

Electronic chip high pure water;

Power high pressure boiler supply water;

Chemical, metallurgy, electroplating and other industries pure water, high pure water;

Biotechnology, pharmaceutical industry, medical devices, experimental technology ---- pure water, high pure water.

Workflow Chart of EDI Water Treatment Plant

Product Showcase of EDI Water Treatment Plant

FAQ:

Q: What’s the type of your company? Manufacturer or trade agent?

A: We are a high-tech manufacturer engaged in water treatment industry for nearly 20 years, specializing in water treatment, water purification equipment and technology research and development, manufacturing, sales, engineering installation and consulting.

Q: What is the lead time?

A: Typically, the production cycle is 3-5 weeks, depending on your project.

Q: How long do you guarantee it?

A: We offer a one-year warranty. Under the correct use and maintenance, the service life of the product itself is about 5 years.