Method and device for treatment of high-temperature printing and dyeing wastewater

A treatment device and printing and dyeing wastewater technology, which is applied in the field of printing and dyeing industry, can solve the problems of printing and dyeing wastewater pollution and difficult treatment, and achieve the effect of low cost

Inactive Publication Date: 2015-02-25
SHOURONG ENVIRONMENTAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a high-temperature printing and dyeing wastewater treatment device and method to solve the problem of serious pollution and difficult treatment of printing and dyeing wastewater

Method used

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  • Method and device for treatment of high-temperature printing and dyeing wastewater
  • Method and device for treatment of high-temperature printing and dyeing wastewater

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Embodiment Construction

[0035] A treatment device for high-temperature printing and dyeing wastewater, comprising sequentially connected mechanical grid pools, regulating pools, cooling towers, reaction pools, air flotation pools, hydrolytic acidification pools, CASS biochemical pools, oxidation decolorization pools, biological carbon filters, clear water pools, Mechanical filter pool, activated carbon filter, security filter, UF ultrafiltration, intermediate water tank, RO membrane, reused water pool.

[0036] The reaction tank is connected with a coagulant feed pipeline, and the coagulant is Ca(OH)?\FeSO 4 \PAM.

[0037] The air flotation tank is connected with a pipeline to the dissolving tank, the dissolving tank is connected with an air pipeline, and the outlet pipe of the air flotation tank is connected with a return pipe to the dissolving tank.

[0038] The CASS biochemical tank is connected with a return pipe to the hydrolysis acidification tank; the sludge in the reaction tank and the air f...

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Abstract

A device for treatment of high-temperature printing and dyeing wastewater comprises a mechanical bar screen pool, an adjustment pool, a cooling tower, a reaction pool, a flotation pool, a hydrolysis acidification pool, a CASS biochemical pool, an oxidation decoloring pool, a biochar filter pool, a clean water pool, a mechanical filter pool, an activated carbon filter, a cartridge filter, a UF ultrafilter, a middle water tank, an RO (reverse osmosis) membrane and a recycling water pool. A wastewater treatment method which is low in cost, high in efficiency and technically stable is provided for treatment of high-temperature printing and dyeing wastewater. Effluent quality can meet the standard requirement of recyclability to production after treatment.

Description

technical field [0001] The invention belongs to the field of printing and dyeing industry, and relates to a treatment device and method for high-temperature printing and dyeing wastewater. Background technique [0002] With the rapid development of the dye textile industry, the variety and quantity of dyes are increasing day by day, printing and dyeing wastewater has become one of the key pollution sources of the water system environment. [0003] The composition of printing and dyeing wastewater is complex, among which the dyes and pastes of printing and dyeing are the main pollutants in printing and dyeing wastewater, mainly based on aromatic hydrocarbons and heterocyclic compounds, and have chromogenic groups (such as: -C=C-, -N =N—,—N=O, =C=O, etc.) and polar groups (such as (—SO 3 Na, -OH, -NH 2 ). The dye molecule contains more -SO which can form hydrogen bonds with water molecules 3 Hydrophilic groups such as H, —COOH, —OH, such as reactive dyes and neutral dyes, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F103/30
Inventor 傅太平傅汉文黄平赵正才
Owner SHOURONG ENVIRONMENTAL TECH
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