Refractory industrial wastewater treatment system and treatment method

Abstract

The invention discloses a refractory industrial wastewater treatment system which comprises a regulating tank, a catalytic ozonation tank, a denitrification filter tank, a biological aerated filter tank, an intermediate water tank, an active sand filter tank, a sludge concentration tank and an ozone disinfection tank, the regulating tank is connected with the catalytic ozonation tank through a pipeline, and the catalytic ozonation tank is connected with the denitrification filter tank through a pipeline; the biological aerated filter is connected with the intermediate water tank through a pipeline, the intermediate water tank is connected with the active sand filter through a pipeline, the active sand filter is connected with the sludge concentration tank through a pipeline, the sludge concentration tank is connected with the regulating tank through a pipeline, and the ozone disinfection tank is connected with the active sand filter through a pipeline.Meanwhile, the invention also discloses a refractory industrial wastewater treatment method. The treatment process is simple, the effect is good, the occupied area is small, and up-to-standard discharge of the refractory industrial wastewater is achieved.

Description

technical field [0001] The invention relates to a refractory industrial wastewater treatment system and treatment method, belonging to the technical field of sewage treatment. Background technique [0002] The water quality of the external drainage of most sewage and wastewater treatment systems in China must meet the A standard of the first-level standard in the "Pollutant Discharge Standard for Urban Sewage Treatment Plants" (GB18918-2002). With the introduction of local sewage discharge standards, the first-level standard of the national standard A The standard no longer meets the discharge requirements, and the sewage and wastewater treatment system needs to be upgraded. Contents of the invention [0003] The object of the present invention is to provide a refractory industrial wastewater treatment system and a refractory industrial wastewater treatment method. The present invention has a simple treatment process and good effect, and realizes the discharge of refractor...

AI Technical Summary

Problems solved by technology

[0002] The water quality of the external drainage of most sewage and wastewater treatment systems in China must meet the A standard of the first-level standard in the "Pollutant Discharge Standard for Urban Sewage Treatment Plants" (GB18918-2002). With the introduction of local sewage discharge standards, the first-level standard of the national standard A The standard no longer meets the requirements for external discharge, and the sewage and wastewater treatment system needs to be upgraded and transformed

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