Treatment method for microcystin in tap water
A microcystin and treatment method technology, which is applied in water/sewage treatment, special compound water treatment, oxidized water/sewage treatment, etc., can solve the problems of ozone oxidation degradation that no one has studied, and save reaction time and energy consumption , high processing efficiency, and the effect of improving activity
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Embodiment 1
[0048] (1) Catalyst preparation: The activated carbon particles were washed with tap water and dried in a constant temperature drying oven at 105°C. 380 kg of cleaned activated carbon was immersed in 760 L of 3.5 mol / L hydrochloric acid solution for 24 hours, then washed with tap water until neutral, and dried at 105 ° C to obtain pretreated activated carbon.
[0049] After mixing ethanol and butyl titanate, add nitric acid solution dropwise, so that the volume ratio of the three reaches 1:10:1.5, and the pH reaches 2.5. Stir well and age to get TiO 2 Sol. Soak pretreated activated carbon in 1400L TiO 2 In the sol, after fully reacting for 12 hours, wash, dry at 105°C, and calcinate in a muffle furnace at 650°C for 4 hours to obtain activated carbon-supported TiO 2 catalyst.
[0050] Mix 3.8mM ferric nitrate solution with 11.5mM nitric acid solution, adjust the pH of the mixture to 2.2, and add the above activated carbon-loaded TiO 2 The catalyst was immersed in 1000L mix...
Embodiment 2
[0053] (1) Catalyst preparation: the honeycomb ceramic particles were washed with tap water, and dried in a constant temperature drying oven at 105°C. 200 kg of cleaned honeycomb ceramics were immersed in 200 L of 3.0 mol / L hydrochloric acid solution for 24 hours, then washed with tap water until neutral, and dried at 105 ° C to obtain pretreated honeycomb ceramics.
[0054] After mixing ethanol and butyl titanate, add hydrochloric acid solution drop by drop, so that the volume ratio of the three reaches 1:6:0.8, and the pH reaches 2.5. Stir well and age to get TiO 2 Sol. Soak the pretreated honeycomb ceramics in 1000L TiO 2 In the sol, after fully reacting for 14 hours, wash, dry at 105°C, and calcinate in a muffle furnace at 600°C for 4 hours to obtain honeycomb ceramic-supported TiO 2 catalyst.
[0055] Mix 1.5mM ferric nitrate solution with 10.0mM nitric acid solution, adjust the pH of the mixture to 2.0, and mix the above-mentioned honeycomb ceramic-supported TiO 2 T...
Embodiment 3
[0058] (1) Catalyst preparation: the ceramsite was washed with tap water, and dried in a constant temperature drying oven at 105°C. Immerse 100kg of cleaned ceramsite in 100L of 1.0mol / L hydrochloric acid solution for 24h, then wash with tap water until neutral, and dry at 105°C to obtain pretreated ceramsite.
[0059] After mixing ethanol and butyl titanate, add hydrochloric acid solution dropwise, so that the volume ratio of the three reaches 1:4:0.5, and the pH reaches 1.5. Stir well and age to get TiO 2 Sol. Soak the pretreated ceramsite in 620L TiO 2 In the sol, after fully reacting for 18 hours, wash, dry at 105°C, and calcinate at 500°C for 2 hours in a muffle furnace to obtain ceramsite-supported TiO 2 catalyst.
[0060] Mix 1.2mM ferric nitrate solution with 7.5mM nitric acid solution, adjust the pH of the mixture to 1.5, and mix the above ceramsite-loaded TiO 2 The catalyst was immersed in 150L mixed solution, subjected to microwave hydrothermal treatment for 30...
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