Ammonium ion sieve, its preparation method and application

An ammonium ion, ion sieve technology, applied in inorganic cation exchangers, ion-exchanged water/sewage treatment, crystalline aluminosilicate zeolite, etc., can solve the problems of complex process, high cost, low efficiency, etc., and achieve the preparation method. Simple and easy effects
CN1824386AInactive Publication Date: 2006-08-30TIANJIN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
TIANJIN UNIV
Publication Date
2006-08-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to an ammonium ionic sieve, its preparation method and application. Said ammonium ionic sieve is made up by using kaoline modified by modifying agent and distilled water. Its preparation method includes the following steps: a). pulverizing kaoline raw material, grinding and sieving; b). heating the sieved sample in muffle furnace to obtain activated kaoline; c). uniformly mixing the activated kaoline, modifying agent and water and stirring them; d). heating mixture, drying, cooling and soaking the obtained product in distilled water, washing until the sample surface pH value is less than 10; and e). drying the obtained product in drying oven so as to obtain the invented ammonium ionic sieve.
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Description

technical field

[0001] The invention relates to an ion sieve and its preparation method and application, in particular to an ammonium ion sieve and its preparation method and application. Background technique

[0002] At present, the methods for removing ammonia from sewage mainly include stripping method, break point chlorination method and ion exchange method. The blow-off method is simple and easy to control, but when the ambient temperature is lower than zero degrees Celsius, the ammonia blow-off cannot be carried out. The biggest disadvantage of the ammonia blow-off method is that the ammonia only transfers and does not undergo any transformation, from water pollution to air pollution. , there is secondary pollution. Ammonia stripping is only suitable for the treatment of wastewater with high concentration of ammonia nitrogen. The breakpoint chlorine addition method has a high denitrification rate, rapid and complete reaction, and has a disinfection effect, but the re...

Claims

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