CN102358636B - System for treating dye wastewater and method for treating triphenylmethane dye wastewater - Google Patents
System for treating dye wastewater and method for treating triphenylmethane dye wastewater Download PDFInfo
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Abstract
The invention provides a system for treating dye wastewater and a method for treating triphenylmethane dye wastewater separately and relates to a device for treating dye wastewater and a method for treating dye wastewater. The system and the method can be used for solving the technical problem that by adopting the existing chemical advanced oxidation method for treating dye industrial wastewater, the energy consumption is large and the cost is high. The system consists of a sieve-plate tower, an ultrasound system, an ozone generator and an ozone tail gas treatment device; and an ultrasonic probe is arranged under the first sieve plate of a sieve-plate tower top meter, the ozone generator is communicated with the gas inlet of the sieve-plate tower, and the gas outlet of the sieve-plate tower is communicated with an ozone tail gas treatment device. The method comprises the following steps: adding triphenylmethane dye wastewater into the sieve-plate tower through a water inlet, simultaneously starting an ultrasonic generating device and the ozone generator, circulating the water flowing from the water outlet of the sieve-plate tower once, and finishing the treatment of wastewater after 4-6 cycles. The device and method provided by the invention have the advantages of low energy consumption and high treatment speed, and can be used in the field of wastewater treatment.
Description
Technical field
The invention belongs to the equipment of waste water from dyestuff and the method for dye wastewater treatment using.
Background technology
China is maximum DYE PRODUCTION state in the world.The annual emissions of dying industrial wastewater has reached 1.57 hundred million tons.And artificial waste water from dyestuff is towards future development anti-oxidant, anti-photodissociation, so dying industrial wastewater mostly is high chroma, high toxicity, the organic waste water of difficult degradation at present.The existing method of taking chemical advanced oxidation processes to process dying industrial wastewater is to be undertaken by adding electric energy, catalyzer and oxygenant, be that the Chinese patent of CN 1609010A discloses " a kind for the treatment of process of waste water from dyestuff " such as publication number, adopt ultrasonic and the ozone process integration is processed azo dye wastewater.The ozone generating source is oxygen, and oxygen is provided by gas cylinder, and processing safety is poor; The ultrasonic device power that adopts is 200W, and energy consumption is higher; The dye wastewater treatment using example shows that dye strength is 400mg/L, and waste water from dyestuff concentration is low, is difficult to satisfy the needs of actual dye wastewater treatment process.Publication number is that the Chinese patent of CN101560027 discloses " a kind of method of fast degradation triphenylmethane dye waste water ", and the method adopts the heterogeneous reaction system that adds sodium bismuthate and Silver Nitrate catalyzer, and waste water from dyestuff is processed.Introduced extra catalyst, processed the dye methyl violet waste water 100mL of 40mg/L, treatment capacity is too small, and concentration for the treatment of is excessively low, is difficult to satisfy the needs of actual dye wastewater treatment process.There is the shortcoming that processing costs is high, energy expenditure is large in the chemistry advanced oxidation processes.And the treatment process majority of existing waste water from dyestuff is for azo dye wastewater, and is still abundant not for the Study on processing method of the waste water of triphenylmethane dye.
Summary of the invention
The present invention will solve the existing technical problem that the method energy expenditure is large, cost is high of taking chemical advanced oxidation processes to process dying industrial wastewater, and a kind of system of dye wastewater treatment using and the method for processing triphenhlmethane dye waste water are provided.
The system of a kind of dye wastewater treatment using of the present invention is comprised of sieve-tray tower, ultrasonic system, ozonizer and ozone exhaust gas treating device; Sieve-tray tower is comprised of housing, inlet distribution device, sieve plate, overflow weir, inlet mouth, air outlet, water-in and water outlet, and the diameter of sieve-tray tower is 1: 5～10 with the ratio of height, and the number of sieve plate is 5～10, and water-in is communicated with the inlet distribution device; Ultrasonic system is comprised of with the ultrasonic probe that is connected with ultrasonic generator ultrasonic generator; Ultrasonic probe is positioned under first sieve plate of sieve-tray tower cat head meter, and ozonizer is communicated with the inlet mouth of sieve-tray tower, and the air outlet of sieve-tray tower is communicated with ozone exhaust gas treating device.
The method of utilizing the system of above-mentioned a kind of dye wastewater treatment using to process triphenhlmethane dye waste water is carried out according to the following steps: be that 20 ℃～40 ℃ triphenhlmethane dye waste water joins in the sieve-tray tower by water-in with temperature, start simultaneously ultrasonic generator and ozonizer, wherein the power of ultrasonic generator is 60W～180W, ultrasonic frequency 20KHz; Ozone gas in the sieve-tray tower is 4～12: 1 with the ratio of the volumetric flow rate of waste water, finishes a working cycle from the water that the water outlet of sieve-tray tower flows out, and through 4～6 circulations, finishes the processing of triphenhlmethane dye waste water.
Described high density triphenhlmethane dye waste water refers to that the concentration of triphenhlmethane dye is the waste water of 800mg/L～1000mg/L.
The present invention is applied to water treatment field with sieve-tray tower first, utilizes sieve-tray tower to combine with ultrasonic and ozone and processes high density triphenhlmethane dye waste water.Waste water from dyestuff enters sieve-tray tower from the top, and distributing by water distributor enters the first layer column plate, forms thin layer liquid at column plate; When liquid thickness surpasses height of weir plate, overflow enters lower one deck column plate, and so forth until flow through whole sieve plates, flows out the sieve-tray tower main body, finishes a liquid circulation; Ultrasonic probe is positioned at the first layer column plate bottom, and the dye wastewater that enters sieve-tray tower is carried out radiotreatment; Ozone generation system produces ozone take air as gas source, provide dye decolored process required oxygenant; Ozone is exported from generator exports, enters tower main body reactor from the sieve-tray tower bottom, and sieve aperture and downtake are uniformly distributed in the whole tower on sieve plate, carry out solution-air with downtake with liquid on sieve plate and contact, and finish the heterogeneous oxidation process; The present invention is with ultrasonic technology and ozone co-oxidation technique, utilize the energy of ultrasonic radiation to impel simultaneously ozone and dye molecule to decompose, form more poly-hydroxy free radical, be beneficial to the non-selective indirect oxidation reaction of radical ion and ozone selectivity direct oxidation reaction, improve ozone utilization rate and mass-transfer efficiency, Reaction time shorten is accelerated the decolouring of dyestuff and the degraded of parent compound.Ultrasonic in combination ozone sieve plate technique meets the pseudo first order reaction kinetic equation, compares with simple ozone sieve-tray tower technique, and its principle is that this technique can improve reaction rate constant K (min
-1), by the augmenting response rate constant, reduce decoloring reaction transformation period (t
1/2), reach the raising speed of reaction, the effect of Reaction time shorten.
The excusing from death producer that adopts in the system of a kind of dye wastewater treatment using of the present invention is the low frequency ultrasound device, and the power that reacts used is less, and energy consumption is low.Speed of response is fast, the augmenting response rate constant.Under ultrasonic and ozone co-oxidation processing condition, waste water from dyestuff can be finished fully decolouring at short notice.It is high to process initial waste water from dyestuff concentration, and more near the actual waste water working condition, treatment effect is good.This reaction is increased to 1000mg/L with initial dye strength still can obtain higher percent of decolourization, is expected to improve the existing treatment process water outlet state of the art not up to standard.
The method of the system of a kind of dye wastewater treatment using of the present invention and fast processing high density triphenhlmethane dye waste water can be used in the water treatment.
Description of drawings
Fig. 1 is the system schematic of a kind of dye wastewater treatment using in the embodiment one; 1 is sieve-tray tower among Fig. 1, and 1-1 is that housing, 1-2 are that inlet distribution device, 1-3 are sieve plate, and 1-4 is overflow weir, 1-5 is inlet mouth, 1-6 is the air outlet, and 1-7 is water-in, and 1-8 is water outlet, 2 is ultrasonic system, 2-1 is ultrasonic generator, and 2-2 is ultrasonic probe, and 3 is ozonizer, 4 is ozone exhaust gas treating device, the direction of the arrow among the figure → expression current; Fig. 2 is malachite green dye wastewater uv-visible absorption spectroscopy figure under the degraded system in the test one; Wherein a is the initial uv-visible absorption spectroscopy of triphenhlmethane dye, b is for processing the uv-visible absorption spectroscopy of 1 waste water after the circulation, c is for processing the uv-visible absorption spectroscopy of 2 rear waste water of circulation, d is for processing the uv-visible absorption spectroscopy of the rear waste water of 3 circulations, e processes the uv-visible absorption spectroscopy of 4 rear waste water of circulation, and f is the uv-visible absorption spectroscopy of waste water after 5 circulations of processing; Fig. 3 is the concentration of test one Malachite Green waste water and the graph of relation in reaction times; Fig. 4 is the concentration of test three Malachite Green waste water and the graph of relation in reaction times.
Embodiment
Embodiment one: the system of a kind of dye wastewater treatment using of (seeing also accompanying drawing 1) present embodiment is comprised of sieve-tray tower 1, ultrasonic system 2, ozonizer 3 and ozone exhaust gas treating device 4; Sieve-tray tower 1 is comprised of housing 1-1, inlet distribution device 1-2, sieve plate 1-3, overflow weir 1-4, inlet mouth 1-5, air outlet 1-6, water-in 1-7 and water outlet 1-8, the diameter of sieve-tray tower 1 is 1: 5～10 with the ratio of height, the number of sieve plate 1-3 is 5～10, and water-in 1-7 is communicated with inlet distribution device 1-2; Ultrasonic system 2 reaches the ultrasonic probe 2-2 that is connected with ultrasonic generator 2-1 by ultrasonic generator 2-1 and forms; Ultrasonic probe 2-1 is positioned under first sieve plate 1-3 of sieve-tray tower 1 cat head meter, and ozonizer 3 is communicated with the inlet mouth 1-5 of sieve-tray tower 1, and the air outlet 1-6 of sieve-tray tower 1 is communicated with ozone exhaust gas treating device 4.
The system of a kind of dye wastewater treatment using of present embodiment utilizes sieve-tray tower to combine with ultrasonic and ozone and processes high density triphenhlmethane dye waste water.Waste water from dyestuff enters sieve-tray tower from the top, and distributing by water distributor enters the first layer column plate, forms thin layer liquid at column plate; When liquid thickness surpasses height of weir plate, overflow enters lower one deck column plate, and so forth until flow through whole sieve plates, flows out the sieve-tray tower main body, finishes a liquid circulation; Ultrasonic probe is positioned at the first layer column plate bottom, and the dye wastewater that enters sieve-tray tower is carried out radiotreatment; Ozone generation system produces ozone take air as gas source, provide dye decolored process required oxygenant; Ozone is exported from generator exports, enters tower main body reactor from the sieve-tray tower bottom, and sieve aperture and downtake are uniformly distributed in the whole tower on sieve plate, carry out solution-air with downtake with liquid on sieve plate and contact, and finish the heterogeneous oxidation process; Present embodiment is with ultrasonic technology and ozone co-oxidation technique, utilize the energy of ultrasonic radiation to impel simultaneously ozone and dye molecule to decompose, form more poly-hydroxy free radical, be beneficial to the non-selective indirect oxidation reaction of radical ion and ozone selectivity direct oxidation reaction, improve ozone utilization rate and mass-transfer efficiency, Reaction time shorten is accelerated the decolouring of dyestuff and the degraded of parent compound.Ultrasonic in combination ozone sieve plate technique meets the pseudo first order reaction kinetic equation, compares with simple ozone sieve-tray tower technique, and its principle is that this technique can improve reaction rate constant K (min
-1), by the augmenting response rate constant, reduce decoloring reaction transformation period (t
1/2), reach the raising speed of reaction, the effect of Reaction time shorten.The excusing from death producer that adopts in the system of a kind of dye wastewater treatment using of present embodiment is the low frequency ultrasound device, and the power that reacts used is less, and energy consumption is low.Speed of response is fast, the augmenting response rate constant.Under ultrasonic and ozone co-oxidation processing condition, waste water from dyestuff can be finished fully decolouring at short notice.It is high to process initial waste water from dyestuff concentration, and more near the actual waste water working condition, treatment effect is good.This reaction is increased to 1000mg/L with initial dye strength still can obtain higher percent of decolourization, is expected to improve the existing treatment process water outlet state of the art not up to standard.
Embodiment two: present embodiment and embodiment one are different is that the ratio of diameter and the height of sieve-tray tower 1 is 1: 6～8.Other is identical with embodiment one.
Embodiment three: present embodiment is different from embodiment one or two is that the number of the sieve plate 1-3 of sieve-tray tower 1 is 6～8.Other is identical with embodiment one or two.
Embodiment four: the system that utilizes embodiment one described dye wastewater treatment using of present embodiment processes the method for triphenhlmethane dye waste water and carries out according to the following steps: the triphenhlmethane dye waste water that with temperature is 20 ℃～40 ℃ joins in the sieve-tray tower 1 by water-in 1-7, start simultaneously ultrasonic generator 2-1 and ozonizer 3, wherein the power of ultrasonic generator 2-1 is 60W～180W, ultrasonic frequency 20KHz; Ozone gas in the sieve-tray tower 1 is 4～12: 1 with the ratio of the volumetric flow rate of waste water, finishes a working cycle from the water that the water outlet 1-8 of sieve-tray tower 1 flows out, and through 4～6 circulations, finishes the processing of triphenhlmethane dye waste water.
The system of a kind of dye wastewater treatment using of present embodiment utilizes sieve-tray tower to combine with ultrasonic and ozone and processes high density triphenhlmethane dye waste water.Waste water from dyestuff enters sieve-tray tower from the top, and distributing by water distributor enters the first layer column plate, forms thin layer liquid at column plate; When liquid thickness surpasses height of weir plate, overflow enters lower one deck column plate, and so forth until flow through whole sieve plates, flows out the sieve-tray tower main body, finishes a liquid circulation; Ultrasonic probe is positioned at the first layer column plate bottom, and the dye wastewater that enters sieve-tray tower is carried out radiotreatment; Ozone generation system produces ozone take air as gas source, provide dye decolored process required oxygenant; Ozone is exported from generator exports, enters tower main body reactor from the sieve-tray tower bottom, and sieve aperture and downtake are uniformly distributed in the whole tower on sieve plate, carry out solution-air with downtake with liquid on sieve plate and contact, and finish the heterogeneous oxidation process; Present embodiment is with ultrasonic technology and ozone co-oxidation technique, utilize the energy of ultrasonic radiation to impel simultaneously ozone and dye molecule to decompose, form more poly-hydroxy free radical, be beneficial to the non-selective indirect oxidation reaction of radical ion and ozone selectivity direct oxidation reaction, improve ozone utilization rate and mass-transfer efficiency, Reaction time shorten is accelerated the decolouring of dyestuff and the degraded of parent compound.Ultrasonic in combination ozone sieve plate technique meets the pseudo first order reaction kinetic equation, compares with simple ozone sieve-tray tower technique, and its principle is that this technique can improve reaction rate constant K (min
-1), by the augmenting response rate constant, reduce decoloring reaction transformation period (t
1/2), reach the raising speed of reaction, the effect of Reaction time shorten.The excusing from death producer that adopts in the system of a kind of dye wastewater treatment using of present embodiment is the low frequency ultrasound device, and the power that reacts used is less, and energy consumption is low.Speed of response is fast, the augmenting response rate constant.Under ultrasonic and ozone co-oxidation processing condition, waste water from dyestuff can be finished fully decolouring at short notice.It is high to process initial waste water from dyestuff concentration, and more near the actual waste water working condition, treatment effect is good.This reaction is increased to 1000mg/L with initial dye strength still can obtain higher percent of decolourization, is expected to improve the existing treatment process water outlet state of the art not up to standard.
Embodiment five: present embodiment and embodiment four are different is that the concentration of triphenhlmethane dye in the triphenhlmethane dye waste water is 800mg/L～1000mg/L.Other is identical with embodiment four.
Embodiment six: present embodiment is different from embodiment four or five is that the temperature of waste water is 25 ℃～35 ℃.Other is identical with embodiment four or five.
Embodiment seven: what present embodiment was different from one of embodiment four to six is that cycle index is 5 times.Other is identical with one of embodiment four to six.
With following verification experimental verification beneficial effect of the present invention:
Test one: the system of a kind of dye wastewater treatment using of (seeing also accompanying drawing one) this test is comprised of sieve-tray tower 1, ultrasonic system 2, ozonizer 3 and ozone exhaust gas treating device 4; Sieve-tray tower 1 is by housing 1-1, inlet distribution device 1-2, sieve plate 1-3, and overflow weir 1-4, inlet mouth 1-5, air outlet 1-6, water-in 1-7 and water outlet 1-8 form, and the diameter of sieve-tray tower 1 is 10cm, and sieve plate 1-3 number is 5, and sieve plate 1-3 spacing is 10cm; Water-in 1-7 is connected with inlet distribution device 1-2; Ultrasonic system 2 reaches the ultrasonic probe 2-2 that is connected with ultrasonic generator 2-1 by ultrasonic generator 2-1 and forms, ultrasonic probe 2-1 is positioned under first sieve plate 1-3, ozonizer 3 is communicated with the inlet mouth 1-5 of sieve-tray tower 1, and the air outlet 1-6 of sieve-tray tower 1 is communicated with ozone exhaust gas treating device 4.
Wherein said ozone exhaust gas treating device 4 is the potassiumiodide cuvette, and the concentration of potassiumiodide is 40g/L.
The method of utilizing the system of test one described dye wastewater treatment using to process triphenhlmethane dye waste water is carried out according to the following steps: be that 38 ℃, the concentration of triphenhlmethane dye are that 1000mg/L, cumulative volume are the triphenhlmethane dye waste water of 2500mL injects sieve-tray tower 1 with the flow velocity of 250mL/min water-in 1-8 with temperature; Start simultaneously ultrasonic generator 2-1 and ozonizer 3, wherein the power of ultrasonic generator 2-1 is 60W, ultrasonic frequency 20KHz; The speed that ozonizer 3 produces ozone is 10.3g/h; Finish a working cycle from the water that the water outlet 1-8 of sieve-tray tower 1 flows out, through 5 circulations, finish the processing of triphenhlmethane dye waste water.
Triphenhlmethane dye described in this test one is malachite green, initial pH=5.29.
The uv-visible absorption spectroscopy of the waste water in this test one as shown in Figure 2, wherein a is the initial uv-visible absorption spectroscopy of triphenhlmethane dye, b is for processing the uv-visible absorption spectroscopy of 1 waste water after the circulation, c is for processing the uv-visible absorption spectroscopy of 4 rear waste water of circulation, d is for processing the uv-visible absorption spectroscopy of the rear waste water of 6 circulations, e processes the uv-visible absorption spectroscopy of 8 rear waste water of circulation, and f is the uv-visible absorption spectroscopy of waste water after 10 circulations of processing.Needed time of circulating for 1 time is 2min.As can be seen from Figure 2, along with the increase in treatment time, the malachite green concentration in the waste water is in continuous decline.
The result of the waste water in this test one is as shown in table 1,
Table 1
| Cycle index (inferior) | 0 | 1 | 2 | 3 | 4 | 5 |
| Treatment time (min) | 0 | 2 | 4 | 6 | 8 | 10 |
| Dye |
0 | 27.64％ | 52.44％ | 69.25％ | 79.17％ | 84.40％ |
The ultrasonic wave consumed power is 0.01KWh.Adjust according to this experiment condition power, process 1 ton of 1000mg/L malachite green waste water and only need power consumption 4KWh.A kind of little power consumption, the advanced oxidization method for the treatment of capacity is large, processing efficiency is high fast degradation high density triphenylmethane dye.
Test two: test two is the simultaneous test of test one, ultrasonic unit in the system of closing test one described dye wastewater treatment using is processed the method for triphenhlmethane dye waste water and is carried out according to the following steps: is that 38 ℃, the concentration of triphenhlmethane dye are that 1000mg/L, cumulative volume are the triphenhlmethane dye waste water of 2500mL injects sieve-tray tower 1 with the flow velocity of 250mL/min water-in 1-8 with temperature; Start simultaneously ozonizer 3, the speed that ozonizer 3 produces ozone is 10.3g/h; Finish a working cycle from the water that the water outlet 1-8 of sieve-tray tower 1 flows out, through 5 circulations, finish the processing of triphenhlmethane dye waste water.The result of the processing of waste water is as shown in table 2,
Table 2
| Cycle index (inferior) | 0 | 1 | 2 | 3 | 4 | 5 |
| Reaction times (min) | 0 | 2 | 4 | 6 | 8 | 10 |
| Dye |
0 | 18.70％ | 42.40％ | 57.90％ | 69.88％ | 78.14％ |
By the result contrast of table 1 with table 2, as can be known, the ultrasonic auxiliary ozone associating sieve-tray tower of test one is better than the method for utilizing the ozone sieve-tray tower in the test two for the decolouring treatment effect of triphenylmethane dye.
Test three: test three also is the simultaneous test of test one, only use ozonize triphenhlmethane dye waste water, concrete steps are: ozone passed into temperature as 38 ℃ take 10.3g/h speed, the concentration of triphenhlmethane dye is 1000mg/L, cumulative volume is in the triphenhlmethane dye waste water of 2500mL, the concentration of triphenhlmethane dye and the changing conditions in treatment time in the record triphenhlmethane dye waste water, processed 10 minutes, finish the processing of triphenhlmethane dye waste water, the result of the processing of waste water shows that the decolouring treatment effect in the test one has improved 8.13% than decolouring treatment effect in the test three.
Waste water from dyestuff water inlet starting point concentration is C
0, the water outlet dye strength is C
t, the reaction of low frequency ultrasound associating ozone oxidation waste water from dyestuff meets false first _ order kinetics equation, i.e. lnC
t=-kt+lnC
0Reaction constant k=-ln (C
t/ C
0), reaction constant k is for characterizing the important indicator of first order reaction kinetics; Another feature of (vacation) first order reaction kinetics is reaction half-time t
1/2=0.693/k, then the k value is larger, and the transformation period of required reaction is shorter, and it is shorter that namely the processed colourity of waste water from dyestuff is removed to the required time of starting point concentration one half.
Fig. 3 is the concentration of the method Malachite Green waste water of processing triphenhlmethane dye waste water and the graph of relation in reaction times in the test one, and the concentration of malachite green waste water and reaction times meet pseudo first order reaction kinetic equation (R as can be seen from Figure 3
2=0.995) k
1=0.192min
-1,
Fig. 4 is the concentration of the method Malachite Green waste water of processing triphenhlmethane dye waste water and the graph of relation in reaction times in the test three, and the concentration of malachite green waste water and reaction times meet pseudo first order reaction kinetic equation (R as can be seen from Figure 4
2=0.995) k
2=0.155min
-1
Comparison diagram 3 and Fig. 4, can find out that testing the method for testing the processing triphenhlmethane dye waste water in three of processing the method for triphenhlmethane dye waste water in one compares, method in the test one has shortened the required time of decolouring (reaction), illustrates that there is promoter action in ultrasonic wave to the advanced oxidation process; Simultaneously, the minimizing in reaction times has also reduced the consumption of power, compares with ultrasonic combined ozone process in the past, with lower power (60W), still less the time time (10min), process high density triphenyl methane waste water (1000mg/L), obtained gratifying effect.
Claims (7)
1. the system of a dye wastewater treatment using is characterized in that the system of dye wastewater treatment using is comprised of sieve-tray tower (1), ultrasonic system (2), ozonizer (3) and ozone exhaust gas treating device (4); Sieve-tray tower (1) is comprised of housing (1-1), inlet distribution device (1-2), sieve plate (1-3), overflow weir (1-4), inlet mouth (1-5), air outlet (1-6), water-in (1-7) and water outlet (1-8), the diameter of sieve-tray tower (1) is 1:5～10 with the ratio of height, the number of sieve plate (1-3) is 5～10, and water-in (1-7) is communicated with inlet distribution device (1-2); Ultrasonic system (2) reaches the ultrasonic probe (2-2) that is connected with ultrasonic generator (2-1) by ultrasonic generator (2-1) and forms; Ultrasonic probe (2-2) is positioned under first sieve plate (1-3) of sieve-tray tower (1) cat head meter, ozonizer (3) is communicated with the inlet mouth (1-5) of sieve-tray tower (1), and the air outlet (1-6) of sieve-tray tower (1) is communicated with ozone exhaust gas treating device (4).
2. the system of a kind of dye wastewater treatment using according to claim 1 is characterized in that the diameter of sieve-tray tower (1) and ratio highly are 1:6～8.
3. the system of a kind of dye wastewater treatment using according to claim 1 and 2, the number that it is characterized in that the sieve plate (1-3) of sieve-tray tower (1) is 6～8.
4. utilize the method for system's processing triphenhlmethane dye waste water of dye wastewater treatment using claimed in claim 1, the method that it is characterized in that utilizing the system of dye wastewater treatment using to process triphenhlmethane dye waste water is carried out according to the following steps: the triphenhlmethane dye waste water that with temperature is 20 ℃～40 ℃ joins in the sieve-tray tower (1) by water-in (1-7), start simultaneously ultrasonic generator (2-1) and ozonizer (3), wherein the power of ultrasonic generator (2-1) is 60W～180W, ultrasonic frequency 20KHz; Ozone gas in the sieve-tray tower (1) is 4～12:1 with the ratio of the volumetric flow rate of waste water, finishes a working cycle from the water that the water outlet (1-8) of sieve-tray tower (1) flows out, and through 4～6 circulations, finishes the processing of triphenhlmethane dye waste water.
5. the system that utilizes dye wastewater treatment using according to claim 4 processes the method for triphenhlmethane dye waste water, and the concentration that it is characterized in that triphenhlmethane dye in the triphenhlmethane dye waste water is 800mg/L～1000mg/L.
According to claim 4 or the 5 described systems that utilize dye wastewater treatment using process the methods of triphenhlmethane dye waste water, the temperature that it is characterized in that triphenhlmethane dye waste water is 25 ℃～35 ℃.
According to claim 4 or the 5 described systems that utilize dye wastewater treatment using process the methods of triphenhlmethane dye waste water, it is characterized in that cycle index is 5 times.
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| CN102358636A (en) | 2012-02-22 |
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Application publication date: 20120222 Assignee: Jiangsu Dingze Environmental Engineering Co., Ltd. Assignor: Harbin Institute of Technology Contract record no.: 2013320000466 Denomination of invention: System for treating dye wastewater and method for treating triphenylmethane dye wastewater Granted publication date: 20130116 License type: Exclusive License Record date: 20130527 |
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