A method and equipment for treating and recycling ink wastewater

Abstract

In order to solve the problems that waterborne printing ink wastewater recovery systems in the prior art directly drain wastewater, cause environment pollution and waste, are long in flow path, high in cost and the like, the invention provides printing ink wastewater treatment and recovery method and equipment. The method comprises steps as follows: the printing ink wastewater is conveyed to pretreatment equipment, wherein the pretreatment equipment is used for pretreating wastewater, and the pretreated wastewater is conveyed to analysis equipment; the pretreated wastewater is conveyed to theanalysis equipment; the wastewater treated by the analysis equipment is conveyed to dispersion liquid equipment; wastewater treated by the dispersion liquid equipment is conveyed to printing ink production equipment, wherein the printing ink production equipment is used for processing, production and packaging of printing ink; printing ink wastewater produced by the printing ink production equipment is conveyed to the pretreatment equipment in S1. The wastewater of the printing ink industry is recycled, and the wastewater is used for producing waterborne printing ink after being treated at a low cost, so that the wastewater is recycled.

Description

technical field [0001] The invention relates to a treatment and recovery method of ink waste water and equipment thereof. Background technique [0002] If the ink wastewater is directly discharged into the urban sewage pipe network and enters the sewage treatment plant without treatment, it will have a great impact on the sewage treatment process, destroy the biochemical treatment system, and pollute the water environment. At the same time, there is a certain phosphorus content in sewage, which is likely to cause water body phenomena such as blue-green algae. [0003] Usually, the pretreatment of ink wastewater has to go through sump tank, grid tank, regulating tank, coagulation tank, primary sedimentation tank, hydrolytic acidification tank, baffle plate anaerobic pretreatment regulating tank, pulse anaerobic tank, biological contact oxidation Pool, secondary sedimentation tank, air flotation tank and many other complex processes, the treated wastewater is directly dischar...

AI Technical Summary

Problems solved by technology

[0010] In order to solve the problems of direct wastewater discharge, environmental pollution, waste, long process and high cost existing in the existing water-based ink printing wastewater recovery system, the present invention proposes a treatment and recovery method of ink wastewater and its equipment to recycle the wastewater in the ink industry Recycling, the waste water is used to produce water-based ink after low-cost treatment, so as to realize the recycling of waste water and use it in the production of ink products of different types and grades

Images