Heavy metal sewage treatment equipment and process using ozone for complex breaking

Abstract

The invention discloses heavy metal sewage treatment equipment and a process using ozone for complex breaking. According to the heavy metal sewage treatment equipment, sewage is introduced into a water inlet of a sewage pump, a drainage pipe of the sewage pump is connected with a fluidized bed reactor through a sludge pipe of a second magnetic separator, and a tail gas outlet is formed in the upper portion of the fluidized bed reactor; a sewage outlet on the upper portion of the fluidized bed reactor is connected with the top of the second magnetic separator, the bottom of the fluidized bed reactor is connected with ozone, a second magnetic separator water discharging pipe is connected with a ferrite reactor, and a calcium hydroxide inlet, a magnetic sludge inlet and a ferrite inlet are formed in corresponding pipelines, the ferrite reactor is connected with the top of a first magnetic separator and a metering water pump through pipelines, The potassium permanganate preparation box is connected with the catalyst reaction kettle through a pipeline, a water outlet of the metering pump is connected with the catalyst reaction kettle, and a sewage up-to-standard discharge outlet is formed in the top of the magnetic separator I; the equipment is obvious in complex breaking effect, simple in magnetic separator structure, high in surface load and high in drained water quality.

Description

Technical field[0001]The present invention relates to the field of heavy metal sewage treatment processes, and more particularly to a heavy metal sewage treatment apparatus and process using ozone.Background technique[0002]Among the wastewater discharged in the electroplating industry is in a state of complex, the heterogeneous strength is stable, high in water solubility, and it is difficult to remove the conventional method, and it is generally necessary to break the complex structure and then carry heavy metal treatment. The surroundation is generally the structure in which the organic matter in the complex is generally adopted, and the common bandwinding method is sodium hypochlorite, Fentoni, ozone. Sodium hypochlorite needs to be added to the sewage, the amount is large, and the cost is high. Fenton Method needs to control the sewage pH within the reaction range, the oxidation efficiency is low and a large amount of iron mud. Ozone oxidation has two ways, one is to utilize ozo...

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Problems solved by technology

Magnetic catalysts and magnetic sludge can be separated quickly by using a magne

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