A Baffled Loaded Photocatalytic Reactor for Wastewater Treatment

Abstract

The invention relates to a baffling loaded type photocatalytic reactor used for treating waste water. The photocatalytic reactor comprises a reactor main body used for accommodating waste water to be treated. At least one separating plate used for dividing to form subsidiary reaction cavities is disposed in the reactor main body. Each of the subsidiary reaction cavities is provided with at least one filler used for dividing to form subsidiary water flow paths and is provided with a water inlet and a water outlet which are communicated through the subsidiary water flow paths. The water outlet of a former subsidiary reaction cavity is connected to the water inlet of a later subsidiary reaction cavity. The water flow directions of adjacent two subsidiary reaction cavities are opposite. Ultraviolet lamps are disposed in the reactor main body. The photocatalytic reactor is reasonable in design, achieves baffling flowing of the waste water in the reactor, enhances fluid turbulence, increases the mass transfer efficiency, improves dissolving capacity of a gas oxidant in water and increases the photocatalytic reaction area, and therefore efficient and harmless treatment of toxic, harmful and refractory organic matters in the waste water is achieved under the action of ultraviolet light.

Description

technical field [0001] The invention relates to a baffle-loaded photocatalytic reactor for treating waste water. Background technique [0002] At present, with the rapid development of chemical industry, metallurgy, medicine, dyestuff, papermaking and other industries, the amount of wastewater produced and the types of pollutants in water are also increasing day by day. The content of aromatic organic substances in wastewater is mostly. Conventional treatment methods such as conventional methods are not easy to remove and the removal is incomplete. Because most of the waste water is toxic and harmful substances, if it is discharged without treatment, it will cause certain damage and impact on the environment and our own lives. Therefore, it is particularly important to find a simple, efficient and thorough purification technology that will not cause secondary pollution to the environment. Photocatalytic oxidation is an advanced oxidation technology, because of its simple eq...

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Problems solved by technology

At present, in the process of wastewater treatment, the existence of catalysts in wastewater is divided into two types: suspension type and supported type. Among them, the structure of the suspension type photocatalytic reactor is simple, and the contact area between the catalyst and wastewater is large, but the catalyst is difficult to recycle. The disadvantage of large loss of catalytic activity; in the loaded photocatalytic reactor, the catalyst is not easy to lose, but the contact area between the catalyst and the wastewater in the existing loaded photocatalytic reactor is small, the dissolution of the catalyst in the wastewater is limited, and the fluid in the The fluidity in the reactor is poor, which restricts the performance of photocatalysis, thus affecting the decontamination effect

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