Electro-Fenton method and apparatus for removing multi-algae toxins from water
A microcystin and water removal technology, which is applied in chemical instruments and methods, water/sewage treatment, oxidized water/sewage treatment, etc., can solve the problems that algae toxins have not been reported, and achieve easy control, easy operation, and equipment compact effect
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Embodiment 1
[0015] Embodiment 1. Generation of hydrogen peroxide in the electric Fenton reaction process
[0016] Reaction target solution volume: 40ml high-purity water
[0017] Reaction target solution temperature: 25°C
[0018] Solution initial pH: 3.00
[0019] Plate area: 9cm 2
[0020] Electrolyte concentration: 0.02M Na 2 SO 4
[0021] Oxygen flow rate: 30ml / min
[0022] Current intensity: 0.04A, 0.06A, 0.08A, 0.12A
[0023] Reaction time: 10min, 20min, 30min, 40min, 60min
[0024] The hydrogen peroxide generation before and after treatment is shown in Table 1.
[0025] Table 1 Example 1 hydrogen peroxide generation situation
[0026]
[0027] As can be seen from Example 1, as the current intensity increases, the amount of hydrogen peroxide produced also increases, indicating that this method can effectively produce hydrogen peroxide.
Embodiment 2
[0028] Embodiment 2. The removal of algal toxins by different treatment processes
[0029] Reaction target solution volume: 40ml
[0030] Reaction target solution concentration: MCRR 8.81mg / L, MCLR 6.36mg / L
[0031] Reaction target solution temperature: 25°C
[0032] Solution initial pH: 3.00
[0033] Plate area: 9cm 2
[0034] Electrolyte concentration: 0.02M Na 2 SO 4
[0035] Oxygen flow rate: 30ml / min
[0036] Respectively activated carbon fiber (ACF) adsorption (without electricity), Fe-free 2+ Catalytic electro-oxidation and electro-Fenton oxidation (Fe 2+ 1mM) to treat water samples containing algal toxins, the removal of algal toxins before and after treatment is shown in Table 2.
[0037] time
[0038] It can be seen from Example 2 that the algae toxins MC-RR and MC-LR are mainly degraded and removed by the electro-Fenton reaction, and neither adsorpt...
Embodiment 3
[0039] Embodiment 3. The removal of different initial concentrations of algae toxin raw water by electric Fenton
[0040] Reaction target solution volume: 40ml
[0041] Ferrous ion concentration: Fe 2+ 1mM
[0042] Reaction target solution temperature: 25°C
[0043] Solution initial pH: 3.00
[0044] Plate area: 9cm 2
[0045] Electrolyte concentration: 0.02M Na 2 SO 4
[0046] Oxygen flow rate: 30ml / min
[0047] Current intensity: 60mA
[0048] The concentration of algae toxins are a.MCRR 8.81mg / L, MCLR 6.36mg / L b.MCRR4.40mg / L, MCLR 3.18mg / L c.MCRR 2.20mg / L, MCLR 1.59mg / L water samples containing algae toxins The treatment was carried out, and the removal of algae toxins before and after treatment was shown in Table 3.
[0049] time
[0050] It can be seen from Example 3 that the method and device of the present invention have better removal ef...
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