Efficient flocculation and de-coloring device for treating printing and dyeing wastewater

Abstract

The invention discloses an efficient flocculation and de-coloring device for treating printing and dyeing wastewater. The efficient flocculation and de-coloring device is composed of a wastewater regulation region, a flocculation medicine preparation region and a precipitation region, wherein the flocculation medicine preparation region is provided with a chemical flocculation medicine pot, a biological flocculation medicine pot and a jetting and blending device; the chemical flocculation medicine pot is communicated with a sewage water distribution pipe through a chemical flocculation medicine feeding pipe; the biological flocculation medicine pot is communicated with the sewage water distribution pipe through a biological flocculation medicine feeding pipe; sewage is conveyed into the sewage water distribution pipe through a submersible sewage pump and a sewage feeding pipe; after the sewage is mixed with a chemical flocculation medicine and / or a biological flocculation medicine, a mixture is conveyed into the jetting and blending device; the jetting and blending device is arranged at the upper part of the precipitation region; the precipitation region is provided with a clean water chamber, a tubular filling region and a sludge chamber, which are arranged from top to bottom; a mixed sewage discharging pipe is arranged at the bottom of the clean water chamber; a sludge discharging hole is formed in the bottom of the sludge chamber. According to the efficient flocculation and de-coloring device disclosed by the invention, flocculation agent mixed reaction is carried out through the flocculation medicine preparation region, the solvation and flocculation effect is improved and the flocculation time is shortened; a hexagonal honeycomb inclined tube assembly is arranged so that the precipitation effect is improved.

Description

technical field [0001] The invention belongs to the technical field of environmental protection equipment, and in particular relates to a high-efficiency flocculation and decolorization device for printing and dyeing wastewater treatment. Background technique [0002] The decolorizing flocculant is a new type of quaternary ammonium organic polymer flocculant that integrates decolorization, flocculation and COD removal. The flocculation and precipitation method is to use inorganic flocculant (such as aluminum sulfate) and organic anionic flocculant polyacrylamide ammonium (PAM) is formulated into an aqueous solution and added to wastewater, which will produce a compressed double layer, which will destabilize the suspended particles in the wastewater, and the colloidal particles will coagulate with each other to increase the size of the particles, forming flocs and alum flowers. After the floc grows to a certain volume, it will separate from the water phase and settle under th...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high-efficiency flocculation and decolorization device for printing and dyeing wastewater treatment to solve the problems of insufficient flocculant dissolution, violent flocculation stirring, flocculant dissolution speed and flocculation settling time in the original flocculation process.

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