Rotary cage net type electric flocculation reactor

Abstract

The invention discloses a rotary cage net type filling material electric flocculation reactor which comprises an electric flocculation reaction tank, a water inlet pipeline, a water outlet pipeline, a flocculation body discharge pipeline, a water inflow retaining wall, a rotary cage net type filling material electrode, an activated carbon particle feeding device, an ultra-violet lamp, a variable frequency motor and a controller, wherein an iron base filling material or an Al-based filling material, coated with a nanometer titanium dioxide photocatalyst, produces photoelectronchemistry concerted reaction under the effect of the irradiation of the ultra-violet lamp and the effect of an electric field, so that organic matters, which are hard to resolve and remove, in water can be converted into flocculation pollutants through photocatalysis chemical reaction, and concentrated on the surface of a filling material. According to the waste water processed through the reactor, the chemical oxygen demand removal rate can reach 95.1 percent, the chromaticness removal rate can reach 98.9 percent, the removal rate of suspended solids reaches 99.2%, the removal rate of organic matters difficult to resolve reaches 98.9%,and the removal rate of harmful microbes, virus and bacteria can reach 96.9 percent.

Description

technical field [0001] The invention relates to a rotating cage net type filler electrocoagulation reactor, which belongs to the field of water treatment in environmental protection. Background technique [0002] The reaction mechanism of electrocoagulation is to use metals such as aluminum and iron as the anode and cathode. Under the action of direct current, the anode is eroded to produce metal ions. After a series of hydrolysis, polymerization, and ferrous oxidation processes, it develops into various hydroxyl complexes. This hydroxyl complex has a strong flocculation effect; the cathode can reduce the hydrogen ions in the wastewater to hydrogen, and the hydrogen will undergo air flotation. These two functions can remove colloids and suspended substances in the wastewater. Electrocoagulation can be widely used in the pretreatment of electroplating wastewater, landfill leachate, pharmaceutical factory wastewater, food wastewater and petrochemical wastewater. The existing ...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a rotating cage net type electrocoagulation reactor, which has a simple structure and reliable operation, and overcomes the problems of anode consumption, anode passivation and high operating costs in the current electrocoagulation wastewater treatment equipment

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