Photoreactor for wastewater treatment

Abstract

The invention discloses a photoreactor for wastewater treatment. A mirror is adopted to form a trench-shaped photoreactor main body, and photocatalyst-supported glass beads are placed in the photoreactor main body in a suspending, supporting, accumulating or bottom tiling mode. The photoreaector has the advantages of avoiding of separation of a photocatalyst, reinforcement of the flow and the mass transfer of wastewater, simple and adjustable structure, low cost, no land occupation, and realization of photocatalytic degradation of the wastewater through directly using sunlight.

Description

technical field [0001] The invention discloses a photoreactor for wastewater treatment, in particular to the preparation of a photoreactor for wastewater treatment. Background technique [0002] With the rapid economic development and the improvement of people's living standards, various toxic and refractory pollutants such as pharmaceuticals, pesticides, dyes, surfactants, heavy metals and nitrites have entered the environment in large quantities, resulting in the decline of water quality and the occurrence of chemical water pollution incidents. . At present, there is still a lack of effective treatment methods for toxic organic wastewater that is difficult to biodegrade due to technical and economic reasons. To achieve the treatment of refractory biodegradable wastewater, treatment methods should be selected according to different wastewater sources, properties and application feasibility, among which photocatalytic technology for degradation by sunlight is the cheape...

AI Technical Summary

Problems solved by technology

[0006] In suspension photoreactors such as CPCR and IPC, although the photocatalytic suspension system is more efficient than the stationary phase system, the difficult recovery and high cost of the suspension system photocatalyst make the supported catalyst a photocatalytic reactor design. In a fixed-bed reactor such as DSSR, the photocatalyst is loaded on the wall of the reactor, and the effective reaction area of ​​the photocatalytic material is reduced, resulting in a reduction in the catalyst activity and the utilization efficiency of the light source, and due to the laminar flow on the wall The existence of layers, the degree of fluid turbulence is low, and it is strongly affected by diffusion

In addition, the above-mentioned photoreactions need to be invested in a certain site as a reactor for industrial application, and the original sewage system needs to be modified. The application is troublesome and requires a large investment of funds.

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