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Printing and dyeing wastewater removal system

A technology of printing and dyeing wastewater and constant temperature water bath, which is applied in textile industry wastewater treatment, adsorption water/sewage treatment, oxidized water/sewage treatment, etc. It can solve the problems of low ozone utilization rate and high operating cost

Inactive Publication Date: 2014-01-22
SHAANXI SHENGMAI PETROLEUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ozone oxidation method has the advantages of strong oxidation ability, mild reaction conditions, and no secondary pollution, but the simple ozone oxidation has disadvantages such as strong selectivity, low ozone utilization rate, and high operating costs.

Method used

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  • Printing and dyeing wastewater removal system

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Experimental program
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Effect test

Embodiment 1

[0011] Such as figure 1 As shown, the printing and dyeing wastewater removal system consists of an oxygen tank 1 , an ozone generator 2 , a reactor 4 and an absorption bottle 6 connected in sequence. Reactor 4 is a columnar glass material with an inner diameter of 5 cm. Clear height 45 cm. The net volume is 0.8 L, immersed in a constant temperature water bath. A porous sand core plate (pore diameter 15-40 μm) is provided at the bottom of the reactor 4 to allow the gas to enter evenly. The model of ozone generator 2 is CHY-6, and oxygen is the gas source.

[0012] When in use, add waste water and 200mg / L activated carbon to reactor 4, adjust the reaction pH to 6.0, keep the reaction temperature at 25°C, and at the same time pass pure oxygen and tap water into ozone generator 2, and pass the prepared ozone into the reaction system . The ozone flow rate is controlled by the flowmeter 3 to be 50mL / min and enters the reactor 4 to react with the waste water, and the ozone in th...

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Abstract

The invention relates to a wastewater treatment device, and discloses a printing and dyeing wastewater removal system comprising successively connected an oxygen tank, an ozone generator, a reactor and an absorption bottle. Organic matters with high relative contents in printing and dyeing wastewater final-settling pond effluent are acetophenone, chloroform and 2-chloro-2-methyl pentane, wherein the acetophenone accounts for 24.5% of total organic pollutants of the effluent. In the printing and dyeing wastewater removal system, the acetophenone removal rate is obviously increased, the ozone-activated carbon synergistic effect is increased, and the COD removal rate reaches up to 83.8%.

Description

technical field [0001] The invention relates to a waste water treatment device. Background technique [0002] The discharge of printing and dyeing wastewater is large. After conventional biochemical and physical chemical treatment, the effluent still contains many refractory substances. A sewage plant mainly treats printing and dyeing wastewater. After the standard is raised, the COD is far from meeting the requirements of the first-level B standard of the "Urban Sewage Treatment Plant Pollutant Discharge Standard", and needs to be remodeled. The ozone oxidation method has the advantages of strong oxidation ability, mild reaction conditions, and no secondary pollution, but the simple ozone oxidation has the disadvantages of strong selectivity, low ozone utilization rate, and high operating costs. Studies have shown that in the synergistic ozone reaction of activated carbon, activated carbon has both adsorption and catalytic effects, which can effectively overcome the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/78C02F1/28C02F103/30
Inventor 王耀斌
Owner SHAANXI SHENGMAI PETROLEUM
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