Modified zeolite as well as preparation method and application thereof
A technology of modified zeolite and natural zeolite, applied in chemical instruments and methods, other chemical processes, silicates, etc., can solve the problem of small increase in ammonia nitrogen adsorption capacity, loss of adsorption and ion exchange, and difficulty in removing mineral impurities, etc. It can achieve ideal adsorption and removal effect, simple operation, good practical application value and industrialization prospect.
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[0017] Embodiment: a kind of modified zeolite of the present invention and its preparation method and application.
[0018] The modified zeolite of the present invention is prepared by mixing natural zeolite and magnesium oxide, calcining and cooling.
[0019] The specific operation of the preparation method of the modified zeolite in this embodiment is as follows: using natural zeolite and magnesia as raw materials, the natural zeolite and magnesia are mixed evenly according to the mass ratio of 4:1, and then the mixture is heated and roasted at a constant temperature. Change the temperature control conditions (take values within the range of 100°C to 600°C), control the calcination time at 4.5h (2h to 6h is acceptable), and obtain modified zeolites under different temperature control conditions after natural cooling.
[0020] The modified zeolite that natural zeolite and present embodiment make is applied to such as figure 1 In the pretreatment process of ammonia nitrogen...
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