CN101863538B - Deep treatment method for up-to-standard printing and dying industry wastewater - Google Patents
Deep treatment method for up-to-standard printing and dying industry wastewater Download PDFInfo
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- CN101863538B CN101863538B CN2010102105245A CN201010210524A CN101863538B CN 101863538 B CN101863538 B CN 101863538B CN 2010102105245 A CN2010102105245 A CN 2010102105245A CN 201010210524 A CN201010210524 A CN 201010210524A CN 101863538 B CN101863538 B CN 101863538B
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Abstract
The invention relates to the field of water environment pollution treatment and discloses a deep treatment method for up-to-standard printing and dying industry wastewater, which is based on a dielectric barrier discharge low-temperature plasma discharge device, and the dielectric barrier discharge low-temperature plasma discharge device can generate a low-temperature plasma environment with the temperature of 10 DEG C to 50 DEG C. The method is characterized that: an open container containing printing and dying industry wastewater coming up to the national first-grade discharge standard is placed in the low-temperature plasma environment with the temperature of 10 DEG C to 50 DEG C to carry out decolorization and degradation, wherein the depth of the printing and dying industry wastewater is 0.1cm to 1cm, the input power of the dielectric barrier discharge low-temperature plasma discharge device corresponding to each square centimeter of water surface is 0.175W to 1.364W, and the time of decolorization and degradation is 3 to 5 minutes.
Description
Technical field
The present invention relates to the water environment pollution process field, particularly a kind of deep treatment method of up-to-standard printing and dying industry wastewater.
Background technology
The dyeing waste water complex structure; Various in style; Enormous amount; And being present in fields such as textile materials, man-made fiber, paper, leather and food, medicine, makeup even skin dyeing widely, is the important composition composition of environmental area organic waste water, also is the important root of water environment pollution simultaneously.
Though traditional physico-chemical process can make the printing and dyeing wastewater to reach standard discharging; But the research for advanced treatment but never makes progress; (percent of decolourization can reach 99% though emerging in recent years advanced oxidation processes can reach basic decolouring fully and degraded; Degradation rate can reach 97%), but exist the problem that energy consumption is high and need additive reagent to drop into.
Summary of the invention
The object of the present invention is to provide a kind of deep treatment method of up-to-standard printing and dying industry wastewater; Can be fast, efficient, non-secondary pollution dyeing waste water up to standard is carried out decolored degradation; And it can farthest be alleviated Effects of water environment, even can be used as greening, carwash, landscape water and directly recycle.
In order to achieve the above object, the present invention adopts following technical scheme to be achieved.
A kind of deep treatment method of up-to-standard printing and dying industry wastewater; Based on the dielectric barrier discharge low-temperature plasma discharge apparatus; Said dielectric barrier discharge low-temperature plasma discharge apparatus produces 10 ℃～50 ℃ low-temperature plasma environment, it is characterized in that, the open containers of the dyeing waste water of splendid attire national 1 grade of emission standard up to standard is positioned in 10 ℃～50 ℃ the low-temperature plasma environment to carry out decolored degradation; Wherein, The degree of depth of dyeing waste water is 0.1cm～1cm, and the power input of the corresponding every square centimeter of water surface of dielectric barrier discharge low-temperature plasma discharge apparatus is 0.175～1.364W, and the decolored degradation time is 3～5 minutes.
The present invention utilizes 10 ℃～50 ℃ low-temperature plasma to carry out up-to-standard printing and dying industry wastewater is carried out advanced treatment; Wherein, The degree of depth of dyeing waste water is 0.1cm～1cm; The power input of the corresponding every square centimeter of water surface of dielectric barrier discharge low-temperature plasma discharge apparatus is 0.175～1.364W, and the decolored degradation time is 3～5 minutes.Can make and reach 1 grade of emission standard of country (the original solution colourimetric number is lower than 50 times, COD value and is lower than 100mgL
-1) the colourimetric number and the COD value of dyeing waste water be reduced to 0 at short notice; Can be quick, efficient, free of contamination up-to-standard printing and dying industry wastewater be carried out advanced treatment; Make it reduce to minimally to Effects of water environment, the dyeing waste water after handling simultaneously can directly be used for greening, carwash, landscape water.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further explain.
Fig. 1 is a kind of structural representation of dielectric barrier discharge low-temperature plasma discharge apparatus.
Embodiment
10 ℃～50 ℃ low-temperature plasma environment in the embodiments of the invention is provided by the dielectric barrier discharge low-temperature plasma discharge apparatus; The power input of the corresponding every square centimeter of water surface of dielectric barrier discharge low-temperature plasma discharge apparatus is 0.175～1.364W, and the degree of depth of dyeing waste water is 0.1cm～1cm.
With reference to Fig. 1, the dielectric barrier discharge low-temperature plasma discharge apparatus mainly comprises: X-former, setter 2, lower electrode (ground connection) 3, last medium quartz glass plate 4, following medium glass ware 5, top electrode 6, last medium quartz glass plate card 7 and media spacing governor lever 8.During test, dyeing waste water is placed on down in the medium glass ware 5, the dyeing waste water amount that the size of following medium glass ware 5 can be handled is as required regulated.With splendid attire the following medium glass ware 5 of dyeing waste water be placed on the lower electrode 3 in the electric discharge device, guarantee that the center of medium glass ware 5 and the center of lower electrode 3 are in a bit down.To go up medium quartz glass plate 4 again and use dielectric card 7 chuckings; Distance between last medium quartz glass plate 4 and the following medium glass ware 5 can moving of working medium spacing lever 8 be adjusted according to the experiment condition of optimum matching, and the position that last dielectric card 7 blocks medium quartz glass plate 4 need guarantee that equally the medium quartz glass plate 4 and the center of following medium glass ware 5 and lower electrode 3 are in a straight line.After last dielectric card 7 blocks medium quartz glass plate 4; Last medium quartz glass plate 4 natures and top electrode 6 are adjacent to; Equally, the center of the central position of top electrode 6 and last medium quartz glass plate 4, following medium glass ware 5 and lower electrode 3 all is on same the straight line.Top electrode 6 is connected with the positive pole of setter 2, radio-frequency power supply 1 through the electric wire that can carry high voltage and high current successively, and the negative electricity of radio-frequency power supply 1 connects lower electrode 3, is regulated to obtain by setter 2 to be fit to experiment condition output voltage, electric current and frequency.
Experimental example 1:
At first, draw 10mL simulation dyeing waste water (formulated) and be positioned over down in the medium glass ware (the waste water advanced 0.1cm of being), shake up homogeneous by the monoazo-dyes acid light yellow.
Then, the discharge parameter of adjustment dielectric barrier discharge low-temperature plasma discharge apparatus is: working gas is an atmospheric air, discharge power 0.175W/cm
2, media spacing 5mm; Discharging just to make original solution colourimetric number and COD value descend 97% after 2 minutes, just can make 150 seconds discharge times dye solution reach decolouring (maxima of waves strong point absorbancy is 0) fully and degraded (the COD value is 0) fully.And the output of mud is 0mg in discharge process.Wherein, the measuring method of colourimetric number adopts spectrophotometry, and percent of decolourization adopts formula 1 to calculate, and the measuring method employing GB11914-89 of COD value measures, and degradation rate adopts formula 2 to calculate, down together.
In the formula:
A
0---the absorbance of dye solution under maximum absorption wavelength before handling;
A
t---handle the absorbance of back dye solution under maximum absorption wavelength.
In the formula:
COD
0---dye solution COD value before handling, mgL
-1
COD
t---handle back dyestuff solution C OD value, mgL
-1
Experimental example 2:
At first, draw 100mL simulation dyeing waste water (formulated) and be positioned over down in the medium glass ware (waste water advanced 1cm), shake up homogeneous by the disazo dyes direct pink.
Then, the discharge parameter of adjustment dielectric barrier discharge low-temperature plasma discharge apparatus is: working gas is an atmospheric air, discharge power 1.364W/cm
2, media spacing 5mm; Discharging just to make original solution colourimetric number and COD value descend 96.73% after 4 minutes, just can make 5 minutes discharge times dye solution reach decolouring (maxima of waves strong point absorbancy is 0) fully and degraded (the COD value is 0) fully.And the output of mud is 0.01mg in discharge process.
Experimental example 3:
At first, draw 10mL simulation dyeing waste water (directly the gold camel is formulated by the trisazo dye monocycle) and be positioned over down in the medium glass ware (the waste water advanced 0.1cm of being), shake up homogeneous.
Then, the discharge parameter of adjustment dielectric barrier discharge low-temperature plasma discharge apparatus is: working gas is an atmospheric air, discharge power 1.364W/cm
2, media spacing 5mm; Discharge and just can make dye solution reach decolouring (maxima of waves strong point absorbancy is 0) fully and degraded (the COD value is 0) fully in 2 minutes.And the output of mud is 0mg in discharge process.
Experimental example 1-3 explanation, dielectric barrier discharge low-temperature plasma can make at short notice that up-to-standard printing and dying industry wastewater obtains advanced treatment, and in the process of advanced treatment, have reached the purpose that mud reduces discharging.
Experimental example 4:
At first, draw 50mL (waste water advanced 0.5cm) simulation dyeing waste water (formulated) and be positioned over down in the medium glass ware (waste water advanced 0.05cm), shake up homogeneous by monoazo dicyclo dyestuff Xylene Red.
Then, the discharge parameter of adjustment dielectric barrier discharge low-temperature plasma discharge apparatus is: working gas is an atmospheric air, discharge power 0.75W/cm
2, media spacing 3mm; Discharging just to make original solution colourimetric number and COD value descend 96.6% after 2 minutes, just can make 180 seconds discharge times dye solution reach decolouring (maxima of waves strong point absorbancy is 0) fully and degraded (the COD value is 0) fully.And the output of mud is 0.01mg in discharge process.
Experimental example 5:
At first, draw 20mL simulation dyeing waste water (formulated) and be positioned over down in the medium glass ware (waste water advanced 0.2cm), shake up homogeneous by the anthraquinone dye anthraquinone blue.
Then, the discharge parameter of adjustment dielectric barrier discharge low-temperature plasma discharge apparatus is: working gas is an atmospheric air, discharge power 0.75W/cm
2, media spacing 3mm; Discharging just to make original solution colourimetric number and COD value descend 97% after 2 minutes, just can make 210 seconds discharge times dye solution reach decolouring (maxima of waves strong point absorbancy is 0) fully and degraded (the COD value is 0) fully.And the output of mud is 0.012mg in discharge process.
Experimental example 3-5 explanation; Dielectric barrier discharge low-temperature plasma can make heterocyclic dyeing waste water up to standard reach the purpose of advanced treatment at short notice; Waste water after the processing is reduced to minimum to water environmental impact; Can directly be used for greening, carwash and landscape water, and in the process of qualified discharge, reach the purpose that mud reduces discharging.
Claims (1)
1. the deep treatment method of a up-to-standard printing and dying industry wastewater; Based on the dielectric barrier discharge low-temperature plasma discharge apparatus; Said dielectric barrier discharge low-temperature plasma discharge apparatus produces 10 ℃～50 ℃ low-temperature plasma environment, it is characterized in that, the open containers of the dyeing waste water of splendid attire national 1 grade of emission standard up to standard is positioned in 10 ℃～50 ℃ the low-temperature plasma environment to carry out decolored degradation; Wherein, The degree of depth of dyeing waste water is 0.1cm～1cm, and the power input of the corresponding every square centimeter of water surface of dielectric barrier discharge low-temperature plasma discharge apparatus is 0.175～1.364W, and the decolored degradation time is 3～5 minutes; Said national 1 grade of emission standard refers to that the original solution colourimetric number is lower than 50 times, COD value and is lower than 100mgL
-1
Said electric discharge device comprises X-former, setter (2), lower electrode (3), last medium quartz glass plate (4), following medium glass ware (5), top electrode (6), goes up medium quartz glass plate card (7) and media spacing governor lever (8); During test, with splendid attire the following medium glass ware (5) of dyeing waste water be placed on the lower electrode (3) in the electric discharge device, guarantee that the center of medium glass ware (5) and the center of lower electrode (3) are in a bit down; To go up medium quartz glass plate (4) again and use medium quartz glass plate card (7) chucking; The position that adjusting according to experiment condition apart from moving of working medium spacing lever (8) between last medium quartz glass plate (4) and the following medium glass ware (5), last medium quartz glass plate card (7) are blocked medium quartz glass plate (4) need guarantee that equally the medium quartz glass plate (4) and the center of following medium glass ware (5) and lower electrode (3) are in a straight line; After said last medium quartz glass plate card (7) blocks medium quartz glass plate (4); Last medium quartz glass plate (4) nature and top electrode (6) are adjacent to; Equally, the center of the central position of top electrode (6) and last medium quartz glass plate (4), following medium glass ware (5) and lower electrode (3) all is on same the straight line; Said top electrode (6) is connected with the positive pole of setter (2), radio-frequency power supply (1) through the electric wire that can carry high voltage and high current successively; The negative electricity of radio-frequency power supply (1) connects lower electrode (3), is regulated to obtain by setter (2) to be fit to experiment condition output voltage, electric current and frequency.
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| CN102205998A (en) * | 2011-04-21 | 2011-10-05 | 西安交通大学 | Refractory organic wastewater treatment method capable of obviously improving biodegradability of organic wastewater |
| CN102595756A (en) * | 2012-03-15 | 2012-07-18 | 大连海事大学 | Generating device and generating method for gas-liquid mixed dielectric barrier discharge |
| CN106830203A (en) * | 2017-02-17 | 2017-06-13 | 西安工业大学 | A kind of standard processing method of natural eutrophication water |
| CN107381722A (en) * | 2017-08-22 | 2017-11-24 | 西安工业大学 | The method for quickly producing a large amount of oxygen activity ions |
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| CN1104609A (en) * | 1994-09-27 | 1995-07-05 | 华中理工大学 | Water treatment and apparatus by plasma and pulse discharging |
| CN1440934A (en) * | 2003-04-08 | 2003-09-10 | 大连理工大学 | Water-treating bipolar pulse discharge process |
| CN201071317Y (en) * | 2007-07-11 | 2008-06-11 | 大连理工大学 | Corona discharge plasma body device for treatment of water |
| CN101215027A (en) * | 2007-12-26 | 2008-07-09 | 南京大学 | Method and device for treating waste water by employing low-temperature plasma technique |
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| JP4635204B2 (en) * | 2006-01-25 | 2011-02-23 | 国立大学法人名古屋大学 | Water treatment method and water treatment apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1104609A (en) * | 1994-09-27 | 1995-07-05 | 华中理工大学 | Water treatment and apparatus by plasma and pulse discharging |
| CN1440934A (en) * | 2003-04-08 | 2003-09-10 | 大连理工大学 | Water-treating bipolar pulse discharge process |
| CN201071317Y (en) * | 2007-07-11 | 2008-06-11 | 大连理工大学 | Corona discharge plasma body device for treatment of water |
| CN101215027A (en) * | 2007-12-26 | 2008-07-09 | 南京大学 | Method and device for treating waste water by employing low-temperature plasma technique |
Non-Patent Citations (3)
| Title |
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| JP特开2007-196121A 2007.08.09 |
| 张峰等.双通道放电等离子体处理模拟酸性紫红染料废水.《水处理技术》.2010,第36卷(第3期),第78-80页. * |
| 陈瑜等.低温等离子体降解染料废水.《水处理技术》.2008,第34卷(第9期),第75-78页. * |
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