Printing wastewater treatment equipment and process

A technology for printing wastewater and treatment equipment, which is applied in textile industry wastewater treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc. In order to reduce the difficulty of manual operation, improve the biodegradability and achieve the effect of high degree of automation

Inactive Publication Date: 2014-01-29
ANHUI GREEN TITAN ENVIRONMENTAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] 3. It is difficult to improve the biodegradability of wastewater containing chemical pulp-PVA only through hydrolysis and acidification, resulting in low removal efficiency of various indicators of wastewater and ineffective chroma removal effect

Method used

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  • Printing wastewater treatment equipment and process

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Effect test

Embodiment 1

[0039] The printing waste water treatment equipment reference of present embodiment figure 1 , including a regulating tank connected to the wastewater treatment device, and the regulating tank is then sequentially connected with a micro-electrolysis reactor, a coagulation-sedimentation machine, an ABR hydrolysis reactor, a biological contact oxidation tank, a secondary sedimentation tank, a sand filter, Charcoal filter and clean water pool; the waste water treatment device includes a screen waste water pretreatment device and a cloth waste water pretreatment device that adopt shunt treatment; Mesh grid wells, high-concentration wastewater pools and dissolved air flotation machines for net cleaning wastewater; the dissolved air flotation machine outputs the lower clear liquid to the regulating pool connected to it; the cloth wastewater pretreatment device includes The process requires sequentially connected cloth grid wells and low-concentration wastewater pools for receiving c...

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Abstract

The invention relates to a printing wastewater treatment process, belonging to the field of dyeing and finishing wastewater treatment. The process disclosed by the invention is mainly characterized in that a flow splitting process is adopted, and screen cleaning wastewater and water washing wastewater are respectively pretreated, are treated by a novel iron-carbon microelectrolysis reactor and then enter subsequent biochemical and deep treatment processes so as to be recycled in a standard reached manner. The process has the advantages that the degree of automation is high, the operation is simple and easy, the running is stable, and the treatment effect is good.

Description

[0001] technical field [0002] The invention relates to printing wastewater treatment equipment and a treatment process, belonging to the field of dyeing and finishing wastewater treatment. Background technique [0003] Manual screen and automatic screen cleaning wastewater, due to the unused slurry remaining on the screen, the concentration of pollutants is high, which contains slurry, dyes, auxiliaries, etc. The dyes used in printing products are different, resulting in printing wastewater There are also significant differences in the components. Wastewater has high viscosity and high organic content, and most of them are aromatic hydrocarbons and heterocyclic compounds, which contain colored groups (such as -N=N, -N=O) and polar groups (such as -S0 3 Na, -OH, -NH 2 ), containing mixed phenols, anilines, alkalis, etc. Wastewater contains a lot of paste and paint: printing wastewater using starch slurry has better biodegradability, printing wastewater using chemical s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F103/30
Inventor 姚明李双建胡召堂赵晓刚
Owner ANHUI GREEN TITAN ENVIRONMENTAL TECH
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