CN102358636A - 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 in the world DYE PRODUCTION state.The annual emissions of dying industrial wastewater has reached 1.57 hundred million tons.And artificial waste water from dyestuff develops towards anti-oxidant, anti-photolytic direction, so mostly dying industrial wastewater is high chroma, high toxicity, the organic waste water of difficult degradation at present.The existing method of taking chemical advanced oxidation processes to handle dying industrial wastewater is to carry out through adding electric energy, catalyzer and oxygenant; Like publication number is that the Chinese patent of CN 1609010A discloses " a kind of treatment process of waste water from dyestuff ", adopts ultrasonicly to handle azo dye wastewater with the ozone process integration.Ozone generation source is an 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 instance 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 quick degraded triphenylmethane dye waste water ", and this method adopts the heterogeneous reaction system that adds sodium bismuthate and Silver Nitrate catalyzer, and waste water from dyestuff is handled.Introduced extra catalyst, handled the pyoktanin blue waste water from dyestuff 100mL of 40mg/L, treatment capacity is too small, and concentration of treatment is low excessively, is difficult to satisfy the needs of actual dye wastewater treatment process.There is the shortcoming that processing costs is high, energy expenditure is big in the chemistry advanced oxidation processes.And the treatment process majority of existing waste water from dyestuff is still abundant inadequately for the wastewater treatment method research of triphenylmethane dye to azo dye wastewater.
Summary of the invention
The present invention will solve the existing technical problem that the method energy expenditure is big, cost is high of taking chemical advanced oxidation processes to handle 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 made up of sieve-tray tower, ultrasonic system, ozonizer and ozone exhaust gas treating device; Sieve-tray tower is made up 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 made up of with the ultrasonic probe that is connected with ultrasonic generating unit ultrasonic generating unit; 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.
Utilize the method for the system handles triphenhlmethane dye waste water of above-mentioned a kind of dye wastewater treatment using to carry out according to the following steps: with temperature is that 20 ℃～40 ℃ triphenhlmethane dye waste water joins in the sieve-tray tower through water-in; Start ultrasonic generating unit and ozonizer simultaneously; Wherein the power of ultrasonic generating unit 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, accomplishes a working cycle from the effusive water of the water outlet of sieve-tray tower, through 4～6 circulations, accomplishes the processing of triphenhlmethane dye waste water.
Described high density triphenhlmethane dye waste water is meant 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 the sieve-tray tower treatment of high concentration triphenhlmethane dye waste water that combines with ultrasonic and ozone.Waste water from dyestuff gets into sieve-tray tower from the top, and distributing through water distributor gets into the first layer column plate, forms thin layer liquid at column plate; One deck column plate under liquid thickness surpasses height of weir plate, and liquid overflows and gets into so back and forth until flowing through whole sieve plates, flows out the sieve-tray tower main body, accomplishes a liquid circulation; Ultrasonic probe is positioned at the first layer column plate bottom, and the dye wastewater that gets into sieve-tray tower is carried out radiotreatment; Ozone generation system is that gas source produces ozone with the air, provides dye decolored process required oxygenant; Ozone is exported from generator exports, gets into tower main body reactor drum from the sieve-tray tower bottom, and sieve aperture and downtake pipe are uniformly distributed in the whole tower on sieve plate, on sieve plate, carry out solution-air with downtake pipe with liquid and contact, and accomplish the heterogeneous oxidation process; The present invention is with ultrasonic technology and ozone co-oxidation technology; Utilize the energy of ultrasonic radiation to impel ozone and dye molecule to decompose simultaneously; Form more poly-hydroxy radical, be beneficial to non-selective indirect oxidation reaction of radical ion and ozone selectivity direct oxidation reaction, improve ozone utilization rate and mass-transfer efficiency; Shorten the reaction times, accelerate the decolouring of dyestuff and the degraded of parent compound.Ultrasonic in combination ozone sieve plate technology meets the pseudo first order reaction kinetic equation, compares with simple ozone sieve-tray tower technology, and its principle is that this technology can improve reaction rate constant K (min
-1), through the augmenting response rate constant, reduce decoloring reaction transformation period (t
1/2), reach the raising speed of reaction, shorten the effect in reaction times.
The excusing from death producer that is adopted 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 accomplished decolouring fully at short notice.It is high to handle 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 an overflow weir, and 1-5 is an inlet mouth; 1-6 is the air outlet, and 1-7 is a water-in, and 1-8 is a water outlet; 2 is ultrasonic system, and 2-1 is ultrasonic generating unit, and 2-2 is a ultrasonic probe; 3 is ozonizer, and 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 handling the uv-visible absorption spectroscopy of 1 waste water after the circulation; C is for handling the uv-visible absorption spectroscopy of 2 circulation back waste water; D is for handling the uv-visible absorption spectroscopy of back, 3 circulation backs waste water, and e handles the uv-visible absorption spectroscopy of 4 circulation back waste water, and f is for handling the uv-visible absorption spectroscopy of 5 circulation back waste water; Fig. 3 is the concentration of malachite green waste water in the test one and the graph of relation in reaction times; Fig. 4 is the concentration of malachite green waste water in the test three 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) this embodiment is made up of sieve-tray tower 1, ultrasonic system 2, ozonizer 3 and ozone exhaust gas treating device 4; Sieve-tray tower 1 is made up 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 generating unit 2-1 by ultrasonic generating unit 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 this embodiment utilizes the sieve-tray tower treatment of high concentration triphenhlmethane dye waste water that combines with ultrasonic and ozone.Waste water from dyestuff gets into sieve-tray tower from the top, and distributing through water distributor gets into the first layer column plate, forms thin layer liquid at column plate; One deck column plate under liquid thickness surpasses height of weir plate, and liquid overflows and gets into so back and forth until flowing through whole sieve plates, flows out the sieve-tray tower main body, accomplishes a liquid circulation; Ultrasonic probe is positioned at the first layer column plate bottom, and the dye wastewater that gets into sieve-tray tower is carried out radiotreatment; Ozone generation system is that gas source produces ozone with the air, provides dye decolored process required oxygenant; Ozone is exported from generator exports, gets into tower main body reactor drum from the sieve-tray tower bottom, and sieve aperture and downtake pipe are uniformly distributed in the whole tower on sieve plate, on sieve plate, carry out solution-air with downtake pipe with liquid and contact, and accomplish the heterogeneous oxidation process; This embodiment is with ultrasonic technology and ozone co-oxidation technology; Utilize the energy of ultrasonic radiation to impel ozone and dye molecule to decompose simultaneously; Form more poly-hydroxy radical, be beneficial to non-selective indirect oxidation reaction of radical ion and ozone selectivity direct oxidation reaction, improve ozone utilization rate and mass-transfer efficiency; Shorten the reaction times, accelerate the decolouring of dyestuff and the degraded of parent compound.Ultrasonic in combination ozone sieve plate technology meets the pseudo first order reaction kinetic equation, compares with simple ozone sieve-tray tower technology, and its principle is that this technology can improve reaction rate constant K (min
-1), through the augmenting response rate constant, reduce decoloring reaction transformation period (t
1/2), reach the raising speed of reaction, shorten the effect in reaction times.The excusing from death producer that is adopted in the system of a kind of dye wastewater treatment using of this 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 accomplished decolouring fully at short notice.It is high to handle 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: this 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: this embodiment is different with 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 method for the system handles triphenhlmethane dye waste water that utilizes embodiment one described dye wastewater treatment using of this embodiment 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 through water-in 1-7; Start ultrasonic generating unit 2-1 and ozonizer 3 simultaneously; The power of wherein ultrasonic generating unit 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, accomplishes a working cycle from the effusive water of the water outlet 1-8 of sieve-tray tower 1, through 4～6 circulations, accomplishes the processing of triphenhlmethane dye waste water.
The system of a kind of dye wastewater treatment using of this embodiment utilizes the sieve-tray tower treatment of high concentration triphenhlmethane dye waste water that combines with ultrasonic and ozone.Waste water from dyestuff gets into sieve-tray tower from the top, and distributing through water distributor gets into the first layer column plate, forms thin layer liquid at column plate; One deck column plate under liquid thickness surpasses height of weir plate, and liquid overflows and gets into so back and forth until flowing through whole sieve plates, flows out the sieve-tray tower main body, accomplishes a liquid circulation; Ultrasonic probe is positioned at the first layer column plate bottom, and the dye wastewater that gets into sieve-tray tower is carried out radiotreatment; Ozone generation system is that gas source produces ozone with the air, provides dye decolored process required oxygenant; Ozone is exported from generator exports, gets into tower main body reactor drum from the sieve-tray tower bottom, and sieve aperture and downtake pipe are uniformly distributed in the whole tower on sieve plate, on sieve plate, carry out solution-air with downtake pipe with liquid and contact, and accomplish the heterogeneous oxidation process; This embodiment is with ultrasonic technology and ozone co-oxidation technology; Utilize the energy of ultrasonic radiation to impel ozone and dye molecule to decompose simultaneously; Form more poly-hydroxy radical, be beneficial to non-selective indirect oxidation reaction of radical ion and ozone selectivity direct oxidation reaction, improve ozone utilization rate and mass-transfer efficiency; Shorten the reaction times, accelerate the decolouring of dyestuff and the degraded of parent compound.Ultrasonic in combination ozone sieve plate technology meets the pseudo first order reaction kinetic equation, compares with simple ozone sieve-tray tower technology, and its principle is that this technology can improve reaction rate constant K (min
-1), through the augmenting response rate constant, reduce decoloring reaction transformation period (t
1/2), reach the raising speed of reaction, shorten the effect in reaction times.The excusing from death producer that is adopted in the system of a kind of dye wastewater treatment using of this 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 accomplished decolouring fully at short notice.It is high to handle 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: this 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: this embodiment is different with 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 this embodiment was different with 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 made up 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 generating unit 2-1 by ultrasonic generating unit 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.
Utilize the method for the system handles triphenhlmethane dye waste water of test one described dye wastewater treatment using to carry out according to the following steps: with temperature is that 38 ℃, the concentration of triphenhlmethane dye are that 1000mg/L, TV are the triphenhlmethane dye waste water of 2500mL injects sieve-tray tower 1 with the flow velocity of 250mL/min water-in 1-8; Start ultrasonic generating unit 2-1 and ozonizer 3 simultaneously, the power of wherein ultrasonic generating unit 2-1 is 60W, ultrasonic frequency 20KHz; The speed that ozonizer 3 produces ozone is 10.3g/h; Accomplish a working cycle from the effusive water of the water outlet 1-8 of sieve-tray tower 1,, accomplish the processing of triphenhlmethane dye waste water through 5 circulations.
Triphenhlmethane dye described in this test one is a malachite green, initial pH=5.29.
The uv-visible absorption spectroscopy of the waste water in this test one is as shown in Figure 2; Wherein a is the initial uv-visible absorption spectroscopy of triphenhlmethane dye; B is for handling the uv-visible absorption spectroscopy of 1 waste water after the circulation; C is for handling the uv-visible absorption spectroscopy of 4 circulation back waste water; D is for handling the uv-visible absorption spectroscopy of back, 6 circulation backs waste water, and e handles the uv-visible absorption spectroscopy of 8 circulation back waste water, and f is for handling the uv-visible absorption spectroscopy of 10 circulation back waste water.Needed time of circulating for 1 time is 2min.As can beappreciated from fig. 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 decolored rate | ?0 | 27.64％ | 52.44％ | 69.25％ | 79.17％ | 84.40％ |
The UW consumed power is 0.01KWh.Adjust according to this experiment condition power, handle 1 ton of 1000mg/L malachite green waste water and only need power consumption 4KWh.Be a kind of little power consumption, the advanced oxidization method of treatment capacity is big, processing efficiency is high quick degrading high concentration 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, handle the method for triphenhlmethane dye waste water and carry out according to the following steps: with temperature is that 38 ℃, the concentration of triphenhlmethane dye are that 1000mg/L, TV are the triphenhlmethane dye waste water of 2500mL injects sieve-tray tower 1 with the flow velocity of 250mL/min water-in 1-8; Start ozonizer 3 simultaneously, the speed that ozonizer 3 produces ozone is 10.3g/h; Accomplish a working cycle from the effusive water of the water outlet 1-8 of sieve-tray tower 1,, accomplish the processing of triphenhlmethane dye waste water through 5 circulations.The process result 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 decolored rate | ?0 | 18.70％ | 42.40％ | 57.90％ | 69.88％ | 78.14％ |
Through the result contrast of table 1, can know that 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 with table 2.
Test three: test three also is the simultaneous test of test one; Only use ozonize triphenhlmethane dye waste water; Concrete steps are: with ozone to feed temperature with 10.3g/h speed be that 38 ℃, the concentration of triphenhlmethane dye are that 1000mg/L, TV are 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; Handled 10 minutes, and accomplished the processing of triphenhlmethane dye waste water, the process result 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 big more, and the transformation period of required reaction is short more, and promptly waste water from dyestuff is processed colourity to be removed to the required time of starting point concentration one half short more.
Fig. 3 is the concentration of malachite green waste water and the graph of relation in reaction times in the method for handling triphenhlmethane dye waste water in the test one, and as can beappreciated from fig. 3 the concentration of malachite green waste water and reaction times meet pseudo first order reaction kinetic equation (R
2=0.995) k
1=0.192min
-1,
Fig. 4 is the concentration of malachite green waste water and the graph of relation in reaction times in the method for handling triphenhlmethane dye waste water in the test three, and as can beappreciated from fig. 4 the concentration of malachite green waste water and reaction times meet pseudo first order reaction kinetic equation (R
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 handling the method for triphenhlmethane dye waste water in one compares; Method in the test one has shortened the required time of decolouring (reaction), explains that there is promoter action in UW 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), treatment of high concentration triphenyl methane waste water (1000mg/L) has been 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 made up of sieve-tray tower (1), ultrasonic system (2), ozonizer (3) and ozone exhaust gas treating device (4); Sieve-tray tower (1) is made up 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 generating unit (2-1) by ultrasonic generating unit (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).
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 the system handles triphenhlmethane dye waste water of the described dye wastewater treatment using of claim 1; It is characterized in that utilizing the method for the system handles triphenhlmethane dye waste water of dye wastewater treatment using to carry out according to the following steps: the triphenhlmethane dye waste water that with temperature is 20 ℃～40 ℃ joins in the sieve-tray tower (1) through water-in (1-7); Start ultrasonic generating unit (2-1) and ozonizer (3) simultaneously; The power of wherein ultrasonic generating unit (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, accomplishes a working cycle from the effusive water of the water outlet (1-8) of sieve-tray tower (1), through 4～6 circulations, accomplishes the processing of triphenhlmethane dye waste water.
5. the method for utilizing the system handles triphenhlmethane dye waste water of dye wastewater treatment using according to claim 4, the concentration that it is characterized in that triphenhlmethane dye in the triphenhlmethane dye waste water is 800mg/L～1000mg/L.
6. according to claim 4 or the 5 described methods of utilizing the system handles triphenhlmethane dye waste water of dye wastewater treatment using, the temperature that it is characterized in that triphenhlmethane dye waste water is 25 ℃～35 ℃.
7. according to claim 4 or the 5 described methods of utilizing the system handles triphenhlmethane dye waste water of dye wastewater treatment using, it is characterized in that cycle index is 5 times.
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| CN103288310A (en) * | 2013-07-01 | 2013-09-11 | 大唐国际化工技术研究院有限公司 | Slack coal pressure gasification wastewater treatment method and treatment system as well as application |
| CN103440431A (en) * | 2013-09-13 | 2013-12-11 | 哈尔滨工业大学 | Method for analyzing and determining optimum concentration of composite uncoupler via response curve surface |
| CN105417620A (en) * | 2015-12-18 | 2016-03-23 | 南京大学 | Method for degrading dye wastewater by using sunlight |
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