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Method for enhancing hydrolytic acidification performance of printing and dyeing waste water

A technology for hydrolyzing acidification, printing and dyeing wastewater, applied in chemical instruments and methods, textile industry wastewater treatment, biological water/sewage treatment, etc.

Inactive Publication Date: 2018-05-15
BAOTOU ENG & RES CORP OF IRON & STEEL IND CHINA METALLURGY CONSTR GROUP BERIS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to overcome the above-mentioned defects, the present invention designs and develops a method for strengthening the hydrolysis and acidification performance of printing and dyeing wastewater, which can overcome the problems of poor anaerobic hydrolysis and acidification ability of existing printing and dyeing wastewater, and the weak sludge retention ability leads to the destruction of bacterial flora and the environment, etc.

Method used

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  • Method for enhancing hydrolytic acidification performance of printing and dyeing waste water
  • Method for enhancing hydrolytic acidification performance of printing and dyeing waste water

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Embodiment 2

[0032] figure 2 Shown is the schematic diagram of the anaerobic baffle reactor for the treatment of printing and dyeing wastewater in this embodiment, wherein 1, the main body of the reactor; 2, the water inlet; 3, the water outlet; 4, the folding plate between the compartments; 5, the sludge discharge pipe 6. Air duct; 7. Packing layer; 8. Suspended sludge layer; 9. Sedimentation tank; 10. Anaerobic sludge return pump; 11. Sludge pump; 12. Gas flow meter;

[0033] As can be seen from the figure, the specification of the reactor 1 in this embodiment is 10m×3m×2m in length×width×height, and the effective volume is 60m 3 , and made of glass fiber reinforced plastic; including 5 compartments, each compartment includes an upflow chamber and a downflow chamber, the upflow chamber and the downflow chamber are separated by a baffle, and the end of each baffle is A bending angle is provided; as a preference, the width ratio of the upper flow chamber and the lower flow chamber of the...

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Abstract

The invention provides a method for enhancing hydrolytic acidification performance of printing and dyeing waste water. The method comprises the following steps: waste water is introduced into an anaerobic baffle plate reactor; wherein the reactor is composed of separating chambers which are connected in series connection; the separating chamber comprises a housing, the upper surface of the middlepart in the housing is provided with a downward baffle plate, and the baffle plate separates the separating chamber into a downward flowing chamber which is located at an upstream position and a upward flowing chamber which is located at a downstream position; wherein the housing corresponding to the downward flowing chamber is provided with a sewage inlet, and the housing corresponding to the upward flowing chamber is provided with a sewage outlet; the upward flowing chamber is internally provided with a packing layer, in order to carry out interception of sludge in the waste water. The method has the advantages of stable operation, high processing efficiency, high anti-loading capability, and simple operation.

Description

technical field [0001] The invention specifically relates to a method for strengthening the hydrolysis and acidification performance of printing and dyeing wastewater. technical background [0002] Printing and dyeing wastewater contains the entrainment of the fiber raw material itself and the slurry, oil agent, dye and chemical additives used in the processing process, which has high biochemical oxygen demand, deep color, high alkalinity, difficult biodegradation, and multiple changes. specialty. Even if the concentration of the dye components in wastewater is very low, if they are discharged into the water body, the light transmittance of the water body and the solubility of gas in the water body will decrease, which will affect the growth of various organisms in the water, thereby destroying the purity of the water body and the aquatic biological chain, and eventually will lead to the destruction of aquatic ecosystems. Therefore, printing and dyeing wastewater needs to ...

Claims

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Application Information

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IPC IPC(8): C02F3/28C02F103/30
CPCC02F3/284C02F2103/30
Inventor 白扬詹茂华程寒飞刘训东
Owner BAOTOU ENG & RES CORP OF IRON & STEEL IND CHINA METALLURGY CONSTR GROUP BERIS
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