Ion exchange definition

Ion exchange means the process of using ion exchange materials such as resin or zeolites to remove undesirable ions from water and substituting acceptable ions, for example, ion exchange for nitrate removal or ion exchange for softening.
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Ion exchange means the process pertaining to demineralization of water by ion exchange units that use acids, bases, or salts to regenerate the exchange resins. The hydrogen-ion exchangers have cation-exchange resins that can be regenerated with sulfuric or hydrochloric acid. The hydroxide-ion exchangers have anion resins that can be regenerated with sodium hydroxide (NaOH), sodium carbonate (Na2CO3), or ammonia (NH3). In the case of a sodium cycle ion exchange unit, the zeolite media softener is regenerated with high concentration of sodium chloride (brine). In case of hydrogen-ion and hydroxyl-ion exchangers, the regeneration wastes are neutralized, pH adjusted, and discharged. For sodium cycle ion-exchange units, the regeneration wastewater and the first flush of rinse water contains TDS and chloride concentration of concern.
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Ion exchange means a process whereby ions in solution are interchanged by a reactive material (see ion exchanger).
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Examples of Ion exchange in a sentence

  • Softening methods (Only Sods lime, Zeolote and Ion exchange resin process).

  • Hardness of water, units of hardness, disadvantages of hardness, measurement of hardness by EDTA method, numerical problems on measurement of hardness of water; Boiler troubles; softening of water– Ion exchange process, zeolite process, desalination of brackish water by reverse osmosis, specifications of potable water as per WHO and BIS standards.

  • Ion exchange technologies can also be used to remove iron (Fe) or manganese (Mn).

  • Hardness of water, units of hardness, disadvantages of hardness, measurement of hardness by EDTA method, numerical problems on measurement of hardness of water, boiler troubles- priming & foaming, scales & sludge, caustic embrittlement, boiler corrosion, softening of water– Ion exchange process, zeolite process, desalination of brackish water by reverse osmosis, Drinking water treatment- Ozonisation & chlorination, specifications of potable water as per WHO and BIS standards.

  • Hardness of water, units of hardness, disadvantages of hardness, measurement of hardness by EDTA method, numerical problems on measurement of hardness of water, boiler troubles- priming & foaming, scales & sludge, caustic embrittlement, boiler corrosion, softening of water– Ion exchange process, zeolite process, desalination of brackish water by reverse osmosis, Drinking water treatment- Ozonisation& chlorination, specifications of potable water as per WHO and BIS standards.

  • Ion exchange processes have been considered as an alternative approach which is commercially in use worldwide.

  • If the State determines that treatment is needed, the State shall either require installation and operation of the source water treatment recommended by the system (if any) or require the installation and operation of another source water treatment from among the following: Ion exchange, reverse osmosis, lime softening or coagulation/filtration.

  • Boiler troubles – Scales & Sludges, Priming, Foaming, and Caustic Embrittlement; Treatment of boiler feed water – Internal treatment (Phosphate, Colloidal and Calgon conditioning); External treatment– Zeolite process and Ion exchange process; Potable Water-Its Specifications–Disinfectation of water by ozonisation, chlorination (break point chlorination and its significance); Reverse Osmosis.

  • Boiler troubles, Techniques for water softening; Lime-soda, Zeolite, Ion exchange resin, Reverse osmosis.

  • Ion exchange and adsorption have been alternative methods for removing metals.In the past, most studies focused on the adsorption equilibrium of single-species metal ions, while less result appeared in the literature on multi-species metal adsorption.

Related to Ion exchange

  • Foreign Exchange (FX) means a service whereby calls either originated by or delivered to a customer who has purchased FX service from the state or interstate tariffs of either Party. FX also includes, but is not limited to, FX-like services provided by either Party where calls are originated from and/or delivered to numbers which are assigned to a Rate Center within one local calling area but where the Party receiving the call is physically located outside of that local calling area. FX service can be either interLATA or intraLATA. InterLATA FX, where the originating and receiving parties are physically located in different LATAs, is considered equivalent to FGA and the intercarrier compensation mechanism is the same as FGA. IntraLATA FX, when provided by two or more local exchange carriers “LECs”, is considered a jointly provided service and meet-point billed by those providing it utilizing a mutually agreed to meet-point billing, or meet-point billing like procedure.

  • Foreign Exchange Rate means, with respect to any currency other than United States dollars, as of any date of determination, the rate set forth in the exchange rate section of The Wall Street Journal or, if not published in The Wall Street Journal, then the average of the opening bid and asked rates on such date at which such currency may be exchanged for United States dollars as quoted by JPMorgan Chase Bank, National Association (or any successor thereto or other major money center commercial bank agreed to by the Parties).

  • National Securities Exchange means an exchange registered with the Commission under Section 6(a) of the Exchange Act or any successor thereto.

  • Futures Exchange means the exchange or trading system with the highest trading volume of options or futures contracts relating to the Share. If options or futures contracts on the Share are not traded on any exchange, the Futures Exchange shall be the options or futures exchange with the highest amount of options or futures contracts relating to shares of companies having their residence in the country in which the Company has its residence. If there is no options or futures exchange in the country in which the Company has its residence on which options or futures contracts on shares are traded, the Calculation Agent will determine the Futures Exchange in its reasonable discretion (billiges Ermessen) (§ 317 BGB) and will make notification thereof in accordance with § 6 of the General Terms.

  • Determining Futures Exchange means the options and/or futures exchange, on which respective derivatives of the Underlying (the "Derivatives") are mostly liquidly traded, such options and/or futures exchange shall be determined by the Calculation Agent acting in accordance with relevant market practice and in good faith by way of notice pursuant to § 6 of the General Conditions.In the case of a material change in the market conditions at the Determining Futures Exchange, such as a final discontinuation of derivatives' quotation linked to the Underlying at the Determining Futures Exchange or a considerably restricted number or liquidity, it shall be substituted as the Determining Futures Exchange by another options and/or futures exchange that offers satisfactorily liquid trading in the Derivatives (the "Substitute Futures Exchange"); such options and/or futures exchange shall be determined by the Calculation Agent acting in accordance with relevant market practice and in good faith. In the event of such substitution, any reference to the Determining Futures Exchange in the Terms and Conditions of these Securities shall be deemed to refer to the Substitute Futures Exchange.