Device for removing nitrogenous substances in water jointly with AG/TiO2 and humic acid

Abstract

The invention discloses a device for removing nitrogenous substances in water jointly with AG / TiO2 and humic acid.The device comprises a water collecting cover and a reactor box which are vertically connected in sequence.An opening is formed in the top of the water collecting cover, a plurality of round through holes are formed in a bottom plate of the water collecting cover, and the water collecting cover and the reactor box are communicated through the round through holes.An ultraviolet lamp and catalyst filler are arranged in the reactor box, humic acid particles are further arranged and laid at the bottom of the reactor box, the ultraviolet lamp is vertically arranged in the center of the reactor box, the catalyst filler is foam ceramic loaded with a silver-doped titanium dioxide catalyst, and the catalyst filler is arranged on the ultraviolet lamp in a sleeving mode.A waterproof pipe is further arranged in the water collecting cover, an upper end opening of the waterproof pipe stretches out of the water collecting cover, and a lower end opening of the waterproof pipe is connected with the ultraviolet lamp.The device further comprises a submerged pump, wherein one end of the submerged pump is communicated with the reactor box through a water outlet pipeline, and the other end of the submerged pump is communicated with the water collecting cover through a backwater pipeline.The device is small in size and convenient to apply.

Description

technical field [0001] The present invention relates to a kind of adopting Ag / TiO 2 The invention relates to a device for jointly removing nitrogenous substances in water bodies with humic acid, belonging to the technical field of photocatalysis. Background technique [0002] The growth and metabolism of fish or aquatic plants will produce ammonia nitrogen that is toxic to the cultured objects in the water body. Under the action of ammonia oxidizing bacteria, ammonia nitrogen is first oxidized to relatively low-toxic nitrite, and then oxidized to toxicity by nitrite oxidizing bacteria. Lower nitrate, although the toxicity of nitrate is low, but its accumulation to a certain extent will still cause harm to organisms. Therefore, in the process of raising fish, the family needs to change the water in the fish tank every once in a while, the purpose is to dilute the water with high concentration of nitrate in the tank. [0003] Photochemical and photocatalytic oxidation is an ...

AI Technical Summary

Problems solved by technology

Studies have shown that there are a variety of semiconductor nanomaterials that can treat a variety of inorganic substances, but nanophotocatalytic materials have not been widely used in the treatment of inorganic nitrogen in aquaculture water. The main reason is that it is difficult to separate and recycle powder catalysts; under strong acid or alkali

Images