Adsorption regeneration-photocatalysis advanced oxidation water treatment equipment

Abstract

The invention relates to adsorption regeneration-photocatalysis advanced oxidation water treatment equipment, which consists of a pipeline static mixer, a water distributor, an aeration pipe, an ultraviolet light source, a membrane component, a vacuum meter, a water outlet pump, an air lift internal circulation reactor and a powder photocatalyst, wherein the aeration pipe, the ultraviolet light source and the membrane component are positioned in the air lift internal circulation reactor; the middle of the air lift internal circulation reactor is provided with an upward circulating flow channel; both sides of the air lift internal circulation reactor are provided with downward circulating pipelines; the bottom of the upward circulating flow channel is connected with the water distributor; the water distributor is connected with the pipeline static mixer; the membrane component is connected with the water outlet pipe through a hose to form a water outlet pipeline; the water outlet pipe is connected with the water outlet pump; water is sucked by the water outlet pump; the vacuum meter is connected in series to the water outlet pipeline; the bottom of each downward circulating pipeline is connected with a return pipe; the return pipe is connected to the front part of the pipeline static mixer; and the powder photocatalyst is suspended in the air lift internal circulation reactor. The water treatment equipment has the advantages of compact structure, mild reaction condition, high reaction efficiency, easiness of maintenance, high drained water quality and strong economic competition, and is suitable for treating various kinds of non-degradable organic matter waste water and hospital sewage and removing non-degradable organic matters remaining in water drained from sewage plants.

Description

technical field [0001] The invention relates to an adsorption regeneration-photocatalytic advanced oxidation water treatment equipment. Background technique [0002] At present, commonly used sewage treatment technologies include activated sludge method, biofilm method, coagulation sedimentation method and other biochemical and physical and chemical treatment methods. However, for substances with poor biodegradability and a relative molecular mass ranging from several thousand to tens of thousands, such as aromatic substances in coking wastewater, antibiotic substances in hospital sewage, dye wastewater, pesticide wastewater, etc., conventional treatment processes are difficult. A large amount of refractory toxic and harmful organic substances remain in the effluent, which will still cause long-term adverse effects on the environment. [0003] The advanced oxidation method uses hydroxyl radicals as the main oxidant to react with organic matter until it is oxidized and decom...

AI Technical Summary

Problems solved by technology

[0005] In practical applications, in order to facilitate the separation and recovery of the catalyst and prevent its loss, the catalyst is generally made into particles, fibers, sheets or fixed on the carrier, so the specific surface area of ​​the catalyst becomes smaller and the degradation efficiency of pollutants decreases. Some advantages of photocatalytic oxidation are lost

However, in order to maximize the specific surface area of ​​the catalyst, the use of powdered catalysts will bring difficulties in separation and recovery, resulting in increased operating costs

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