A kind of ectopic flocculation electroflocculation device and ectopic electroflocculation method
An electro-flocculation and flocculation technology, which is applied in chemical instruments and methods, water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems affecting the contact between the electrode plate and the wastewater, the reduction of electro-oxidation efficiency, and the sticking of the cathode and anode. and other problems, to achieve the effect of promoting the exchange of wastewater, improving the efficiency of the electrode, and preventing the passivation of the electrode plate.
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Embodiment 1
[0038] use figure 1 The ectopic flocculation electrocoagulation device using solid electrode plates is shown to treat wastewater. The solid electrode plates are iron-aluminum alloy plates, the number of which is 150, and the DC voltage applied between each pair of plates is about 1.5V. Atmospheric pressure CO2 gas is introduced from the gas inlet pipe at the bottom of the tank to adjust the pH of the wastewater to about 5.8. It was observed in the experiment that only a small amount of flocculation occurred in the electrocoagulation device, which was reflected in the fact that the wastewater only became slightly turbid, but basically no precipitation occurred. The wastewater leaving the electrocoagulation device was passed into another container, which contained a large amount of calcium carbonate particles to increase the pH value, and it was found that a large amount of flocculation and precipitation occurred in this container.
Embodiment 2
[0040] use Figure 6 The shown ectopic flocculation electrocoagulation device using hollow electrode plates is used to treat wastewater. The plates are iron-aluminum alloy plates, the number is 150, and the DC voltage applied between each pair of plates is about 1.5V. Atmospheric pressure CO2 is passed through the gas inlet of the hollow pole plate, and then passed into the waste water to be treated through the inner cavity and wall holes of the hollow pole plate in turn. The pH of the wastewater was adjusted to around 5.8. It was observed in the experiment that in the electrocoagulation device, only a small amount of flocculation occurred, which was reflected in the fact that the wastewater only became slightly turbid, but basically no precipitation occurred. The wastewater leaving the electrocoagulation device was passed into another container containing some calcium carbonate particles to raise the pH value, and it was found that a large amount of flocculation and sediment...
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