Technical field

The invention relates to a water treatment reactor, in particular to a three-dimensional electrolytic wastewater treatment device suitable for treating refractory industrial wastewater.

Backgroud technology

The rapid development of industry not only brings about the rapid growth of economy and the improvement of people's living standard, but also makes industrial wastewater discharge increase and the composition complex. Traditional processes sometimes have difficulty degrading organic matter in industrial wastewater, and certain components in industrial wastewater make microorganisms difficult to survive. Therefore, an effective treatment of refractory organic pollutants is being sought.

At present, there are many industrial wastewater treatment devices, but the composition of industrial wastewater is complex, the difficulty of treatment is high, and the technology of domestic wastewater treatment is endless, but there are still many problems. 1) Lack of pre-treatment function of industrial wastewater, and difficult to operate subsequent treatment units; 2) Most of the devices are only for specific pollutants, and the degradation effect of other pollutants is not obvious; 3) Some inventions have obvious degradation effect, but complex device and high cost.

Invention content

The purpose of the invention is to provide a three-dimensional electrolytic wastewater device, which can overcome the deficiency of the prior art and effectively degrade the refractory organic matter in the industrial wastewater, so as to reduce the burden of the subsequent treatment system.

For the purpose of the invention, the technical scheme adopted by the invention is as follows: a three-dimensional electrolytic wastewater treatment device comprises two parts in the reactor wall: an aeration filtration system and a filler electrode system. The aeration filtration system is located in the lower part of the device, and the filler electrode system is located in the upper part of the aeration filtration system, and the two parts are separated by filter plates.

The aeration filtration system comprises a water inlet, a filter plate, an intake pipe, a cloth pipe, a filter head and a emptying pipe; The water inlet pipe is located at the lower end of the device and near the bottom. The water inlet pipe is arranged above the air inlet pipe, the pipe cloth is connected with the air inlet pipe in the device, the filter plate is arranged above the air inlet pipe, the filter plate is installed on the filter head, and the horizontal position of the water inlet pipe opposite is provided with a discharge pipe.

The packing electrode system comprises a three-dimensional electrode filler, a porous cathode plate, a porous electrode baffle, a porous anode plate, a water outlet, an outlet weir and a power supply connection line. A three-dimensional electrode filler is filled between the filter plate and the outlet weir. One side of the three-dimensional electrode filler is installed with a porous cathode plate and the other side is installed with a porous anode plate. The porous cathode plate and the porous anode plate are relatively installed, and the porous electrode baffle is installed on both sides of the porous cathode plate and the porous anode plate. The upper end of the device is provided with a power supply connection connecting a porous cathode plate and a porous anode plate out of the device.

The three-dimensional electrode filler is an iron-carbon mixed filler, and the ratio of iron to carbon is 2:1.

The electrode baffle is detachable.

Principle of the invention: Some waste water contains organic pollutants which are difficult to degrade. Three-dimensional electrode method uses hydrogen peroxide and hydroxyl radical ions produced by electrolysis to oxidize and degrade pollutants in water, especially organic pollutants and metal ions which are difficult to degrade. In the invention, the aeration filtration system can make the waste water fully oxygenated and filtered, and the filler electrode system can further oxidize the waste water and degrade the organic pollutants which are difficult to degrade in the waste water.

Advantages of the invention: 

high removal efficiency of metal ions, etc., and it is recyclable. Compared with the traditional two-dimensional electrode method, the removal efficiency is higher and the energy consumption is lower. It can also be used in conjunction with other technologies. The device can also design the size of the device according to the amount of waste water, is not limited by the size of the water, and has the characteristics of low cost, fast purification speed, simple device, etc.