Continuous Deionization and Continuous Electro Deionization Systems. Essay

Custom Student Mr. Teacher ENG 1001-04 6 May 2016

Continuous Deionization and Continuous Electro Deionization Systems.

Continuous Deionization and Continuous Electro Deionization Systems. Our electrodeionization systems remove dissolved inorganics effectively and do not use any chemicals, which translates into cost savings. They require no chemical regeneration, no chemical disposal, no resin disposal, and low energy. These systems could reduce operating costs within your water treatment system, provide a safer workplace and require fewer regulations. The main usage of EDI systems are in electronics, pharmaceutical, power generation, and cooling tower applications. Our water experts can answer any questions or concerns that you may have. How does EDI and CEDI work?

Electrodeionization utilizes an electrode to ionize water molecules and separate dissolved ions (impurities) from water. It differs from other water treatment technologies because it does not use chemicals and is usually a pretreatment to reverse osmosis (RO). EDI is a continuous process. The ion exchange resins are being continuously being regenerated by the DC electric field. There is no “breakthrough” of ions as happens in conventional ion exchange operations, therefore the quality of the water remains at a constant high level of purity. The electric field also provides a bacteriostatic environment inside of the EDI cell, inhibiting the growth of bacteria and other organisms. commercial/industrial ion exchange systems and water deionizers.

Total water provides ion exchange systems for production of high purity water. Our ion exchange systems utilize water deionization and demineralization to remove undesirable ions and replace them with acceptable ones. These ion exchange systems are used to purify water for laboratory, biotech, pharmaceutical, medical, food and beverage, hydrometallurgical, metals finishing, chemical and petrochemical, ground and potable water, nuclear, softening, industrial water, semiconductor, power and other applications. Our certified ion exchange water experts can address any questions or custom industry applications that you may have.

The deionization process uses synthetic ion exchange resin to remove dissolved solids from water by ion attraction and exchange. This synthetic resin is charged with either hydrogen (H*) or hydroxide (OH) ions which causes the resin to release their ions in exchange for the positively charged cations (Mg+2, Ca+2, Na+, etc.) which may be present in the raw feed water supply. Two typed of deionizers are commonly used, mixed bed and separate bed.

A mixed-bed deionizer combines both cation and anion resins in a single vessel. Mixed-bed deionizers can produce very high quality water that approaches the theoretical limits of purity (18.24 megohm-cm resistivity at 25C) and natural ph of 7.0. A separate bed system consists of separate vessels of cation and anion resin. Separate bed deionizers have the economical advantage of 16-40% greater. Custom water demineralization systems for your water needs.

Demineralized water (also known as Deionized Water) is water that has had its mineral ions removed. Mineral ions such as cations of sodium, calcium, iron, copper, etc. and anions such as chloride, sulfate, nitrate, etc. are common ions present in water. Deionization is a physical process which uses specially-manufactured ion exchange resins which provides ion exchange site for the replacement of the mineral salts in water with water forming H+ and OH- ions.

Because the majority of water impurities are dissolved salts, deionization produces a high purity water that is generally similar to distilled water, and this process is quick and without scale buildup. Demineralized water systems are the main equipment used in the preparation process of high purity water and treatment water. convenient production of high quality water with less capital investment. Unlike permanent-bed deionizers, portable deionized water systems do not require capital investment, chemical handling, waste management or maintenance.

Even though they are portable, they can be used for many high purity water applications such as laboratory, dialysis, pharmaceutical and other industrial applications. The systems are more flexible for different applications or flow rates and easier to integrate into treatment systems. Our certified water experts can help determine if a portable DI water system would work for you. How does portable deionization work?

It uses ion exchange resin in movable tanks or cylinders. These tanks are typically lined, fiberglass pressure vessels of varying sizes (usually volumes of .25 ft³ to 3.6 ft³). Each size will accommodate specific total production capacities and flow rates to fit various situations precisely. Service deionization is a clean and simple way to produce purified water. All of the equipment, regeneration, maintenance and repair is provided by the service company.

The deionizers are installed on your tap water and operate on line pressure to provide ionic contaminant removal. Eventually the ability of the deionizers to remove ionic impurities becomes exhausted and the service exchange company sends a serviceperson to remove the tanks on site and replace them with freshly regenerated units.

Free Continuous Deionization and Continuous Electro Deionization Systems. Essay Sample


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  • University/College: University of California

  • Type of paper: Thesis/Dissertation Chapter

  • Date: 6 May 2016

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