Printing-dyeing wastewater purifier and utilization method of printing-dyeing wastewater purifier

A printing and dyeing wastewater and water purifying agent technology, applied in water/sewage treatment, chemical instruments and methods, textile industry wastewater treatment, etc., can solve problems such as direct discharge, unstable treatment effect, complex components, etc., and achieve chromaticity value Reduced, easy to promote, simple operation effect

Active Publication Date: 2016-04-20
临沭县环境保护局
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Since the reform and opening up, my country's textile industry has been developing more and more. Among them, the printing and dyeing industry has also developed extremely rapidly, and its production capacity has expanded. A large amount of water is consumed in production, and a large amount of waste water is produced at the same time. This printing and dyeing waste water has high chroma and complex components, and cannot be discharged directly. It is very difficult to deal with it. Therefore, people spend a lot of material and financial resources to solve this problem.
In the prior art, there are many kinds of water purifiers used to treat printing and dyeing wastewater, such as basic aluminum chloride, aluminum sulfate, ferrous sulfate and other inorganic coagulants, which have poor decolorization effect on printing and dyeing wastewater, unstable treatment effect, and cannot effectively decolorize Color removal of printing and dyeing wastewater

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Take the wastewater from a printing and dyeing enterprise, the wastewater is purple red, after testing, the CODcr value in the printing and dyeing wastewater is 1755mg / L, BOD 5 It is 420.0mg / L, SS is 470mg / L, pH11.42, chromaticity is 1100.

[0019] (1) Put 15g of polyacrylamide, 10g of bamboo charcoal, 15g of sodium carbonate, 15g of diatomaceous earth, and 15g of sodium sulfate into 100L of the above-mentioned printing and dyeing wastewater. liquid to complete the flocculation and sedimentation of printing and dyeing wastewater;

[0020] (2) Put 15g of perlite, 5g of sawdust, and 25g of diatomaceous earth into the wastewater treated in step (1), stir at a speed of 70r / min for 1min, let stand for 5min, filter, and release the filtrate;

[0021] (3) Put 15g of bentonite, 10g of potassium permanganate, and 20g of quaternary ammonium salt into the filtrate treated in step (2), stir at 100r / min for 0.5min, and let stand for 15min to complete the decolorization of printing ...

Embodiment 2

[0024] Take the wastewater from a printing and dyeing enterprise, the wastewater is purple-red, after testing, the CODcr value in the printing and dyeing wastewater is 1800mg / L, BOD 5 It is 430.0mg / L, SS is 460mg / L, pH11.35, chromaticity is 1000.

[0025] (1) Put 2.5g of polyacrylamide, 1.5g of bamboo charcoal, 3.0g of sodium carbonate, 2.5g of ferric chloride, and 2.5g of sodium sulfate into 10L of the above-mentioned printing and dyeing wastewater, stir at a speed of 100r / min for 5min, and let stand for 20min. Release the supernatant to complete the flocculation and settlement of printing and dyeing wastewater;

[0026] (2) Put 2.5g of perlite, 1.5g of sawdust, and 3.5g of diatomaceous earth into the wastewater treated in step (1), stir at a speed of 100r / min for 2min, let stand for 10min, filter, and release the filtrate;

[0027] (3) Put 2.0g of bentonite, 1.5g of potassium permanganate, and 3.0g of quaternary ammonium salt into the filtrate treated in step (2), stir at a...

Embodiment 3

[0030] Take the wastewater from a printing and dyeing enterprise, the wastewater is purple red, after testing, the CODcr value in the printing and dyeing wastewater is 1890mg / L, BOD 5 It is 490.0mg / L, SS is 435mg / L, pH11.20, chromaticity is 900.

[0031] (1) Put 18g of polyacrylamide, 11g of bamboo charcoal, 20g of sodium carbonate, 18g of ferric chloride, and 18g of sodium sulfate into 100L of the above-mentioned printing and dyeing wastewater, stir at a speed of 70r / min for 4min, let stand for 17min, and release the supernatant, Complete the flocculation and sedimentation of printing and dyeing wastewater;

[0032] (2) Put 18g of perlite, 7g of sawdust, and 28g of diatomaceous earth into the wastewater treated in step (1), stir at a speed of 80r / min for 1.5min, let stand for 8min, filter, and release the filtrate;

[0033] (3) Put 16g of bentonite, 11g of potassium permanganate, and 22g of quaternary ammonium salt into the filtrate treated in step (2), stir at 110r / min for ...

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PUM

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Abstract

The invention belongs to the field of wastewater treatment, and relates to a printing-dyeing wastewater purifier and a utilization method of the printing-dyeing wastewater purifier. The printing-dyeing wastewater purifier is characterized by being prepared from the following raw materials in terms of parts by weight: 15-25 parts of polyacrylamide, 10-15 parts of bamboo charcoal, 15-30 parts of sodium carbonate, 15-25 parts of concentrated hydrochloric acid, 15-25 parts of sodium sulfate, 15-25 parts of perlite, 5-15 parts of sawdust, 25-35 parts of diatomaceous earth, 15-20 parts of bentonite, 10-15 parts of potassium permanganate, 20-30 parts of quaternary ammonium salt, 5-10 parts of fruit shell filter materials, 10-18 parts of medicinal stone, 15-25 parts of coconut shell activated carbon and 20-35 parts of cation exchange resin. The printing-dyeing wastewater purifier and the utilization method of the purifier have the advantages that not only can printing-dyeing wastewater with high erchrominance and higher concentration be treated, but also the printing-dyeing wastewater after the treatment of the purifier is colorless and odorless, and has obviously-reduced CODcr (Chemical Oxygen Demand chromium) value and BOD5 (Biochemical Oxygen Demand 5) value; moreover, secondary pollution can be avoided in the process of treating the printing-dyeing wastewater by utilization of the purifier, and the effects of low cost, simple operation and convenience in promotion are achieved.

Description

technical field [0001] The invention belongs to the field of wastewater treatment, and in particular relates to a water purifying agent for dyed wastewater and a method for using the water purifying agent. Background technique [0002] Since the reform and opening up, my country's textile industry has been developing more and more. Among them, the printing and dyeing industry has also developed extremely rapidly, and its production capacity has expanded. A large amount of water is consumed in production, and a large amount of waste water is produced at the same time. This printing and dyeing waste water has high chroma and complex components, and cannot be discharged directly. It is very difficult to treat. Therefore, people spend a lot of material and financial resources to solve this problem. In the prior art, there are many kinds of water purifiers used to treat printing and dyeing wastewater, such as basic aluminum chloride, aluminum sulfate, ferrous sulfate and other ino...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00C02F1/42C02F103/30
CPCC02F1/00C02F1/42C02F2001/425C02F2103/30
Inventor 杨纯剑
Owner 临沭县环境保护局
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