Composite catalyst bed layer based efficient catalytic sodium hypochlorite reclaimed water treatment system and process thereof
A technology for catalyzing sodium hypochlorite and composite catalytic bed, which is applied in the directions of oxidized water/sewage treatment, water/sewage treatment, water/sludge/sewage treatment, etc. Achieve the effect of improved applicability, improved catalytic activity, and excellent mechanical strength
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[0028] Example 1 A high-efficiency catalytic sodium hypochlorite reclaimed water treatment system based on a composite catalytic bed
[0029] Such as figure 1 As shown, the present invention provides a high-efficiency catalytic sodium hypochlorite reclaimed water treatment system based on a composite catalytic bed, including an oxidation tower 1, an activated carbon catalyst bed 2, a reclaimed water storage tank 3, a reclaimed water inlet 4, and a molecular sieve catalyst bed 5. Reclaimed water outlet 6, liquid mixer 7, effluent storage tank 8, sodium hypochlorite storage tank 9, lift pump 10, oxidation tower sealing port 11.
[0030] The reclaimed water storage tank 3 is used to store reclaimed water, the sodium hypochlorite storage tank 9 is used to store sodium hypochlorite solution, the reclaimed water storage tank 3 is connected to the liquid mixer 7 through a lift pump 10, and the sodium hypochlorite storage tank 9 is lifted The pump 10 is connected to the liquid mixer 7, wh...
Example Embodiment
[0036] Example 2 A high-efficiency catalytic sodium hypochlorite reclaimed water treatment process based on a composite catalytic bed, including the following steps:
[0037] (1) Catalyst preparation: Put the powders of nickel nitrate, iron nitrate, and magnesium nitrate into a ball mill to grind and mix, and then prepare the mixed powder into two parts of 5% aqueous solution, put molecular sieve and activated carbon into them, and after soaking for 12 hours, After drying, calcining in a muffle furnace, and cooling to obtain activated carbon catalyst and molecular sieve catalyst;
[0038] Among them, the mass ratio of nickel nitrate, iron nitrate, and magnesium nitrate is 5:2:1;
[0039] MCM41 type molecular sieve for molecular screening, the specific surface area of the specific molecular sieve exceeds 1000m 2 / g, the relative crystallinity exceeds 90%, the ignition loss does not exceed 5%, and the pore size is distributed in the range of 2-5nm.
[0040] Coconut shell activated car...
Example Embodiment
[0059] Example 3 An application of high-efficiency catalytic sodium hypochlorite water treatment based on a composite catalytic bed
[0060] The following describes the present invention in detail based on practical examples, and the implementation effects of the present invention are as follows.
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