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).

  • Paper chromatography b) Thin Layer chromatography c) Ion exchange chromatography d) Column chromatography e) Gas chromatography f) High Performance Liquid chromatography g) Affinity chromatography 5 a.

  • 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: (i) Determination of exchange capacity of cation exchange resins and anion exchange resins.

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

  • Ion exchange (IE).(a)IntermediateAll groundwaters.2. Point of use (POU 2 ) IE(b)BasicAll groundwaters3.

  • Ion exchange chemical and radiological durability and regeneration properties shall be demonstrated.

  • 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 is the process that separates these charged amalgam particles from the wastewater.

  • Ion exchange column for removal of hardness of water / Estimation of Hardness of water by EDTA Method6.

Related to Ion exchange

  • Option Exchange Ratio means the quotient obtained by dividing (i) the Cash Amount Per Share by (ii) the Acquiror Common Stock Price.

  • Reference Exchange means XETRA.

  • Foreign Exchange (FX) or “FX-like” Service means a retail service offering which allows FX End Users to obtain Exchange Service from a mandatory local calling area other than the mandatory local calling area where the FX End User is physically located, but within the same LATA as the number that is assigned. FX Service enables particular End Users to avoid what might otherwise be toll calls between the FX End User’s physical location and other End Users in the foreign 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.

  • National Exchange means any of the following markets or exchanges on which the Common Stock is listed or quoted for trading on the date in question, together with any successor thereto: the NYSE American, The New York Stock Exchange, the Nasdaq Global Market, the Nasdaq Global Select Market and the Nasdaq Capital Market.

  • 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).

  • Daily Exchange Value means, for each of the 20 consecutive Trading Days during the Observation Period, one-twentieth (1/20) of the product of (a) the applicable Exchange Rate and (b) the Daily VWAP of the Common Stock (or the Reference Property, if applicable) on such day.

  • Related Exchange means each exchange or quotation system where trading has a material effect (as determined by the Calculation Agent) on the overall market for futures or options contracts relating to the FTSE 100, including any transferee or successor to any such exchange or quotation system or any substitute exchange or quotation system to which trading in futures or options contracts relating to the FTSE 100 has temporarily relocated (provided that the Calculation Agent has determined that there is comparable liquidity relative to

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

  • 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.

  • Currency exchange means receipt of compensation from the exchange of money of one government for money of another government.

  • 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.

  • Securities Transaction means a purchase of or sale of Securities.

  • Related Exchange(s means each exchange or quotation system (as the Determination Agent may select) where trading has a material effect (as determined by the Determination Agent) on the overall market for futures or options contracts relating to the Share or, in any such case, any transferee or successor exchange of such exchange or quotation system.

  • Principal Exchange means, in respect of a Share, any stock exchange or quotation system on which such Share is listed. As of the date of this Information Statement, the Principal Exchange for each Share is as set forth under "Summary Information Regarding the Companies".

  • Private Securities Transaction means any securities transaction relating to new offerings of securities which are not registered with the Securities and Exchange Commission, provided however that transactions subject to the notification requirements of Rule 3050 of the Financial Industry Regulatory Authority’s (FINRA) Conduct Rules, transactions among immediate family members (as defined in the interpretation of the FINRA Board of Governors on free-riding and withholding) for which no associated person receives any selling compensation, and personal securities transactions in investment company and variable annuity securities shall be excluded.

  • Recognised Futures Exchange means an international futures exchange which is recognised by the SFC or which is approved by the Manager.