Printing ink wastewater treatment system

Abstract

The invention discloses a printing ink wastewater treatment system which comprises a rack, an oil separation tank, an oil collection tank, a printing ink wastewater adjusting tank, a first coagulation filtering device, an electrolysis device, a second coagulation filtering device, a comprehensive tank, an SBR tank, a first intermediate tank, a disinfection and sterilization device, a precision filtering device, a recycling tank and at least one UASB tank, the oil separating tank, the oil collecting tank and the printing ink wastewater adjusting tank are respectively mounted on the rack; the oil separating tank is respectively communicated with the oil collecting tank and the printing ink wastewater adjusting tank; the first coagulation and filtration device, the electrolysis device, the second coagulation and filtration device, the comprehensive tank, the UASB tank, the SBR tank, the first intermediate tank, the disinfection and sterilization device, the precision filtration device and the recycling tank are communicated in sequence; the printing ink wastewater adjusting tank is communicated with the first coagulation filtering device. According to the printing ink wastewater treatment system, various oil residues and organic pollutants in the printing ink wastewater can be removed, and the printing ink wastewater can be disinfected and sterilized, so that the treated water can reach the reutilization standard.

Description

technical field [0001] The invention relates to waste water treatment equipment, in particular to an ink waste water treatment system. Background technique [0002] The pollutant components in ink wastewater are relatively complex, except for the main pollutants such as cyclic organic matter (colorant) containing colored groups, water-soluble resin (vehicle) of acrylic series, large molecular weight alcohol group or phenyl dispersant, etc. Components, including other organic pollutants, as well as water-insoluble oil layers and impurity particles produced during printing, dyeing and transportation, these complex components prevent ink wastewater from being treated simply like ordinary wastewater, using chemical reagents to pass through The chemical reaction can be coagulated and filtered out. Not only the oil and impurity particles are easy to participate in the chemical reaction, and other unplanned substances are generated, so that the ink wastewater cannot react and filte...

AI Technical Summary

Problems solved by technology

[0002] The pollutant components in ink wastewater are relatively complex, except for the main pollutants such as cyclic organic matter (colorant) containing colored groups, water-soluble resin (vehicle) of acrylic series, large molecular weight alcohol group or phenyl dispersant, etc. Components, including other organic pollutants, as well as water-insoluble oil layers and impurity particles produced during printing, dyeing and transportation, these complex components prevent ink wastewater from being treated simply like ordinary wastewater, using chemical reagents to pass through The chemical reaction can be coagulated and filtered out. Not only the oil and impurity particles are easy to participate in the chemical reaction, and other unplanned substances are generated, so that the ink wastewater cannot react and filter the main polluting components according to the original treatment plan, nor can it be purified. All organic pollutants are filtered, and there will be bacteria in the ink wastewater, which will lead to insufficient treatment of the ink wastewater, and will still cause environmental pollution after discharge

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