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Multicomponent compound agent for waste water treatment in textile printing and finishing and treatment process thereof

A technology of wastewater treatment agent and medicament, applied in the field of printing and dyeing, can solve the problems of complicated wastewater treatment process, different colors of wastewater and high cost

Inactive Publication Date: 2006-09-27
周心光 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the textile industry and garment industry, the main source of waste water is in the dyeing and finishing section, and due to the different types of dyes used in different fabrics, the waste water has different colors and complex components, and it is difficult for a single water treatment agent to comprehensively Adapt to the needs of wastewater treatment
As a result, the existing wastewater treatment process is complicated and the cost is too high, which makes the enterprise overwhelmed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1: a kind of textile printing and finishing wastewater treatment agent and treatment method thereof, get polyferric sulfate 18g, ferric chloride 0.4g, polyacrylamide 0.8g, polydimethyldiallylammonium chloride 0.4g, phosphorus Ammonium 0.2g and sodium carboxymethylcellulose 0.2g are mixed to form 20g of medicament.

[0012] Treatment process: add 20g of the above medicament to 1.0 tons of cowboy sewage, stir and mix evenly at high speed, overflow and settle, then flow into the secondary sedimentation tank after 30 minutes of aeration, settle through aeration, and then carry out sand filtration, water purification, activated carbon adsorption and decolorization , to achieve clear and transparent water. Aeration is the addition of proper aeration to the raw water after coagulation and precipitation to remove a small part of COD that still exists in the water Cr 、BOD 5 and the pigment is further removed, its COD Cr 、BOD 5 The removal rate is greater than 80%. ...

Embodiment 2

[0014] Embodiment two: another kind of textile printing and finishing wastewater treatment agent and treatment method thereof, take polyferric sulfate 16g, ferric chloride 1g, polyacrylamide 1g, polydimethyldiallylammonium chloride 0.4g, ammonium phosphate 0.6g and 0.6g of sodium carboxymethylcellulose are mixed to form 20g of medicament.

[0015] The treatment process is the same as in Embodiment 1.

[0016] In this example, the aqueous solution of the medicament has good stability, good decolorization, and fast sedimentation, but the adaptable range of pH value is slightly worse than that of Example 1. Water quality analysis: COD Cr 5 <2mg / L; SS<3mg / L; Chromaticity 5°. It meets the GB / T14848-93V water quality standard and can be recycled and reused.

Embodiment 3

[0017] Embodiment three: another kind of textile printing and finishing wastewater treatment agent and treatment method thereof, get polyferric sulfate 16.4g, ferric chloride 1g, polyacrylamide 0.8g, polydimethyldiallylammonium chloride 0.8g, 0.2 g of ammonium phosphate and 0.6 g of sodium carboxymethylcellulose are mixed to form 20 g of medicament.

[0018] The treatment process is the same as in Embodiment 1.

[0019] This embodiment has good decolorization and fast sedimentation, but the stability of the aqueous solution of the medicament is poor, and the adaptability range of the pH value of the water quality is slightly worse than that of Embodiment 1. Water quality analysis: COD Cr 5 <2mg / L; SS<3mg / L; Chromaticity 5°. It meets the GB / T14848-93V water quality standard and can be recycled and reused.

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Abstract

A multi-component drug for treating the waste water of printing and dyeing for textile and its use. The components are of polyferric sulfate, ferric chloride, polydimethyl-dially ammonia chloride, polyacrylamide (PPA), ammonium phosphate and carboxymethyl cellulose (CMC), and mixed them quantitatively. Its process includes mixing drug and waste water at high speed stir, settling, aerating, sand filtering and decolorizing by active carbon.

Description

technical field [0001] The invention belongs to the technical field of printing and dyeing, and in particular relates to a textile printing and finishing wastewater treatment agent and a treatment method thereof. Background technique [0002] In the textile industry and garment industry, the main source of waste water is in the dyeing and finishing section, and due to the different types of dyes used in different fabrics, the waste water has different colors and complex components, and it is difficult for a single water treatment agent to comprehensively Meet the needs of wastewater treatment. Cause the existing waste water treatment procedure to be complicated, the cost is too high, and the enterprise is overwhelmed for this. Therefore, in order to meet the needs of various printing and dyeing sewage treatment, how to use the simplest treatment process and the lowest treatment cost to make the printing and dyeing sewage treatment regenerated and utilized, so as to achieve ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/52C02F1/56C02F1/28
Inventor 周永康
Owner 周心光
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