Dyeing wastewater treatment and recycling technical system

A technical system, printing and dyeing wastewater technology, applied in the technical system field of printing and dyeing wastewater treatment and reuse, can solve the problems of human health and living environment hazards, waste of water resources, high chroma, etc., to achieve easy sedimentation of sludge and reduce load , the effect of low dosage

Active Publication Date: 2016-06-15
SUZHOU SUWATER ENVIRONMENTAL SCI & TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The sources of printing and dyeing wastewater and the components of pollutants are very complex, with the characteristics of large changes in water quality, high organic content, high chroma (mainly colored dyes), etc. Direct discharge will bring great harm to human health and the living environment, and c

Method used

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  • Dyeing wastewater treatment and recycling technical system

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Embodiment Construction

[0041] Such as figure 1 , a technical system for the treatment and reuse of printing and dyeing wastewater, including a pretreatment system, an oxidation ditch, and an advanced treatment system.

[0042] The pretreatment system includes a water collection well 11, a primary sedimentation tank 12, and an adjustment tank 13; the water collection well is connected with the primary sedimentation tank, the primary sedimentation tank is connected with the adjustment tank, the adjustment tank is connected with the oxidation ditch 20, and the oxidation ditch is connected with the secondary sedimentation tank. The pond 30 is connected, and the secondary sedimentation tank is connected with the primary sedimentation tank and the coagulation reaction sedimentation tank 40 respectively; the coagulation reaction sedimentation tank is connected with the sludge thickening tank 50; The bottom of the medicine box is provided with a first medicine dropping port, and ferrous sulfate solution is ...

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Abstract

The invention discloses a dyeing wastewater treatment and recycling technical system which comprises a pretreatment system, an oxidation ditch and an advanced treatment system, wherein the pretreatment system comprises a water collecting well, a preliminary sedimentation tank and a regulating tank; the water collecting well communicates with the preliminary sedimentation tank; the preliminary sedimentation tank communicates with the regulating tank; the regulating tank communicates with the oxidation ditch; the oxidation ditch communicates with a secondary sedimentation tank; the secondary sedimentation tank respectively communicates with the preliminary sedimentation tank and a coagulative reaction sedimentation tank; the coagulative reaction sedimentation tank communicates with a sludge concentration tank; and the advanced treatment system communicates with the coagulative reaction sedimentation tank, and comprises an aeration biological filter tank, an ozone contact tank and a filter tank. The dyeing wastewater treatment and recycling technical system has the advantages of thorough wastewater treatment, high economic feasibility, stable operation, lower energy consumption and the like, and is simple to operate. Various treatment units are integrated to display the respective treatment advantages and functions, thereby providing a reliable and economical solution for dyeing wastewater treatment and recycling.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a technical system for the treatment and reuse of 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 very complex, with the characteristics of large changes in water quality, high organic content, high chroma (mainly colored dyes), etc. Direct discharge will bring great harm to human health and living environment, and cause water resources. waste. As the country and society pay more and more attention to environmental protection requirements and the requirements for sustainable development, traditional processing methods have become more and more difficult to meet the requirements of production and environmental p...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F103/30
CPCC02F1/001C02F1/50C02F1/5236C02F1/5281C02F1/78C02F3/02C02F3/301C02F3/308C02F9/00C02F11/122C02F2101/308C02F2103/30
Inventor 徐富
Owner SUZHOU SUWATER ENVIRONMENTAL SCI & TECH CO LTD
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