High-grade oxidization deep processing system of printing and dyeing wastewater C.E

Abstract

The invention discloses a high-grade oxidization deep processing system of printing and dyeing wastewater C.E. The high-grade oxidization deep processing system comprises a raw water tank, a quartz sand filter, a C.E pre-electrolysis tank, a C.E electrolysis tank, a middle water tank and an active carbon filter which are sequentially communicated through a plurality of water inlet and outlet pipelines. The low-inlet and high-outlet mode is adopted for the water inlets and outlets of the C.E pre-electrolysis tank and the C.E electrolysis tank, and the tops of the C.E pre-electrolysis tank and the C.E electrolysis tank are both connected with the bottom of an active carbon adsorber; the C.E electrolysis tank comprises a plurality of electrode assemblies placed in electrode insertion groovesand an electrode assembly support, the electrode insertion grooves are evenly distributed in the electrode assembly support, each electrode assembly is an interlayer structure assembly composed of twonegative electrode plates, a built-in positive electrode plate, a plurality of screws, nuts and gaskets, and a plurality of flow guide holes are evenly distributed in the negative electrode plate andthe anode electrode plate. From the aspect of low energy consumption and low material consumption, the deep processing cost for making printing and dyeing wastewater reach the emission standard is reduced, meanwhile the recycling requirement is met, and energy conservation, emission reduction and recycling are realized.

Description

technical field [0001] The invention belongs to the technical field of printing and dyeing wastewater treatment, in particular to a C.E advanced oxidation advanced treatment system for printing and dyeing wastewater. Background technique [0002] The printing and dyeing industry is a typical water-intensive industry, which consumes nearly 100 million tons of demineralized water for process every year. The sources of printing and dyeing wastewater and the composition of pollutants are complex, with the characteristics of large changes in water quality, high content of organic matter, and high chroma (mainly colored dyes). Direct discharge will bring great harm to human health and living environment, and cause waste of water resources. [0003] At present, the advanced ozone oxidation treatment technology is a common technology for the advanced treatment of printing and dyeing wastewater. The core equipment used in this technology is an ozone generator. The ozone generator nee...

AI Technical Summary

Problems solved by technology

Among them, the equipment investment of the corona method is high, the operating cost is high, and the ozone output is large, but the ozone concentration produced is low; the low ultraviolet method consumes high energy, and the concentration of generated ozone is low, which is not suitable for the production of a large amount of ozone; The radiation method has a large investment, is unsafe, and has a low frequency of use; the electrolysis method mainly includes electrolysis of air and electrolysis of pure water, and the process of electrolysis of air to produce ozone will produce NO X and other toxic substances, the required AC voltage is high, the electrolysis efficiency is low, it is difficult for ozone to enter the water, the equipment occupies a large area, and the use cost is extremely high; the ozone efficiency produced by the electrolysis pure water unit is the highest, but the equipment investment is high and the ozone output is small. cannot be applied on a large scale

Images