CN104860470A - Acrolein wastewater treatment method and device - Google Patents
Acrolein wastewater treatment method and device Download PDFInfo
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- CN104860470A CN104860470A CN201510205891.9A CN201510205891A CN104860470A CN 104860470 A CN104860470 A CN 104860470A CN 201510205891 A CN201510205891 A CN 201510205891A CN 104860470 A CN104860470 A CN 104860470A
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Abstract
The invention particularly discloses an acrolein wastewater treatment method and device and belongs to the field of wastewater treatment. Formaldehyde, n-butyl aldehyde and other organic matter are contained in EA (Ethyl Acrylate) wastewater and accordingly the biochemical treatment cannot be directly performed. The acrolein wastewater treatment method comprises distillation, acid adjustment, ultraviolet radiation treatment and biochemical treatment. The cross radiation of ultraviolet rays is adopted, hydrogen peroxide serves as a catalyst, and accordingly the degradation speed of the organic matter is improved and meanwhile the degradation of the organic matter is thorough, wherein the wavelengths of the ultraviolet rays are 254 nm and 185 nm. According to the acrolein wastewater treatment device, the structure is simple, the use is convenient, the treatment cost is low, solid waste is not produced, and the continuous automatic wastewater treatment can be performed.
Description
Technical field
The present invention relates to field of waste water treatment, particularly a kind of structure is simple, easy to use, processing cost is low and do not produce solid waste, can continuous and automatic process waste water propenal waste water treatment unit and use the treatment process of this device process propenal waste water.
Background technology
Propenal is the intermediate producing Imazethapyr, and Imazethapyr belongs to imidazolinone herbicide, is side chain amino acid synthetic inhibitor, uses before bud or after bud.Excellent preventive effect is had, as three-coloured amaranth, knotweed, lamb's-quarters, black nightshade, Siberian cocklebur, barnyard grass, Herba Setariae Viridis, lady's-grass, broomcorn millet etc. to the gramineous weeds in Soybean Field and other leguminous plants fields and some broadleaf weeds.In state-owned soybean 800,000,000 mu, especially northeastward area and in be covered with very large cultivated area, Imazethapyr is by a large number for Soybean Field control gramineous weeds.The intermediate propenal that one important is needed, because 30% formaldehyde solution is used in propenal synthesis, so produce the aldehydes waste water being difficult to degrade of one high density in the one-tenth product process of Imazethapyr.Propenal waste water contains the organism such as formaldehyde, acetaldehyde, butyraldehyde-n, propenal, and COD is very high, has no idea directly to carry out biochemical treatment.
Prior art generally adopts burning method process propenal waste water, namely at incinerator combust fuel gas or oil fuel, add the waste water of discharging in vinylformic acid production process after making in-furnace temperature reach 700-850 DEG C, make the volatile organic matter in waste water at high temperature oxygenolysis become carbonic acid gas and the water of environmental sound.Adopt this technique, substantially achieve the oxidizable organism such as oxygenolysis propenal formaldehyde in waste water, acetaldehyde, propenal, thus reach the object of wastewater discharge standard.But because heating power burning process needs a large amount of steam raising waste water on the one hand, need a large amount of fuel combustion supporting, energy consumption is very high, significantly increase the expense that vinylformic acid is produced, in addition, in waste water, some high boiling organism are not recycled, and reduce the economic benefit of enterprise.
Therefore treatment process and the device of developing low, the simple propenal waste water of a kind of cost are problem demanding prompt solutions.
Summary of the invention
The object of the present invention is to provide that a kind of structure is simple, easy to use, processing cost is low and do not produce solid waste, can continuous and automatic process waste water propenal waste water treatment unit and use the treatment process of this device process propenal waste water.
Technical scheme of the present invention is:
A treatment process for propenal waste water, comprises step:
1) distill; Distillation propenal waste water, to remove high boiling point polymkeric substance;
2) acid adjustment; Regulate the pH value of the rear waste water of distillation to 2-3;
3) uviolizing process; Immersed by ultraviolet radiation device in the waste water after acid adjustment, using hydrogen peroxide as catalyzer, the organism under ultraviolet irradiation in waste water is degraded; It is 180-260nm that described ultraviolet radiation device sends ultraviolet wavelength;
4) biochemical treatment; Waste water after step 3) process passes into biochemical treatment tank and carries out biochemical treatment.
Preferably, step 2) in, adopt hydrochloric acid, sulfuric acid or organic acid to regulate the pH value of waste water.Adopt hydrochloric acid, sulfuric acid or organic acid for adjusting pH, be convenient to post-processed, reduce secondary pollution.
As preferably, in step 3), the concentration of hydrogen peroxide in waste water is 3wt%-5wt%.Hydrogen peroxide concentration, within the scope of this, can play preferably katalysis, can not waste hydrogen peroxide simultaneously.
Preferably, in step 3), catalyzer also comprises ferrous ion, and the concentration of ferrous ion in waste water is 0.1 wt-0.3 wt %.Increase ferrous ion as the catalyzer of degradation of organic substances, degradation speed and degradation rate can be increased further.
Preferably, in step 3), the time of uviolizing process is 2-5h.
Described propenal method of wastewater treatment treatment unit used, comprise be communicated with successively retort, acid adjustment pond, uviolizing pond and biochemistry pool; Wherein, in described uviolizing pond, be provided with ultraviolet radiation device, in described ultraviolet radiation device, be provided with some quartz burners be installed in transparent quartz glass tube.
As preferably, described quartz burner comprises the quartz burner A that can send 254nm UV-light and the quartz burner B that can send 185nm UV-light; Described quartz burner A and quartz burner B arranged crosswise.Ultraviolet kind is more, just can process a greater variety of organism in waste water; And adopt 254nm and 185nm UV treatment propenal waste water, expand greatly and propenal is given up the scope of Organic substance in water process and ability; Meanwhile, the uniformity coefficient of irradiation is added.
Further, described quartz burner A and quartz burner B is 6000 watts of super high power quartz burners.Described ultraviolet radiation device adopts the quartz burner of super high power, the application of 6000 watts of super high power quartz burners, increases waste treatment capacity.
Beneficial effect of the present invention is:
Water and oxygen produce a large amount of hydroxyl radical free radicals and oxyradical under ultraviolet effect, because hydroxyl radical free radical and oxyradical have very strong oxidisability, overwhelming majority organic pollutant is degraded to carbonic acid gas, water and nitrogen, COD and ammonia nitrogen reduce greatly, substantially increase the biodegradability of waste water, ensure that biochemical system long-term stability is run.Adopt wavelength to be 254nm and 185nm ultraviolet cross-fire, and be catalyzer with hydrogen peroxide, the speed accelerating organic matter degradation makes organic matter degradation more thorough simultaneously.
Propenal wastewater treatment equipment structure of the present invention is simple, easy to use, processing cost is low and do not produce solid waste, can continuous and automatic process waste water.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of process flow sheet of propenal method of wastewater treatment of the present invention;
Fig. 2 is the another kind of process flow sheet of propenal method of wastewater treatment of the present invention.
Embodiment
Comparative example 1
A treatment process for propenal waste water, comprises step:
1) distill; Distillation propenal waste water, to remove high boiling point polymkeric substance; Wherein, the COD value of propenal waste water is 20000ppm;
2) acid adjustment; Hydrochloric acid, sulfuric acid or organic acid is adopted to regulate the pH value to 2.5 of the rear waste water of distillation;
3) uviolizing process; Ultraviolet radiation device is placed in the top of waste water after acid adjustment, using hydrogen peroxide as catalyzer, the organism under ultraviolet irradiation in waste water is degraded; It is 185nm, 254nm that ultraviolet radiation device sends ultraviolet wavelength; Wherein, the concentration of hydrogen peroxide in waste water is 4wt%, and the time of uviolizing process is 8h; After uviolizing process, the COD value of waste water is 3500ppm;
4) biochemical treatment; Waste water after step 3) process passes into biochemical treatment tank and carries out biochemical treatment.
Aforesaid propylene aldehyde method of wastewater treatment treatment unit used, comprise be communicated with successively retort, acid adjustment pond, uviolizing pond and biochemistry pool; Wherein, uviolizing is provided with ultraviolet radiation device above pond, is provided with some quartz burners be installed in transparent quartz glass tube in ultraviolet radiation device.Quartz burner comprises the quartz burner A that can send 254nm UV-light and the quartz burner B that can send 185nm UV-light; Quartz burner A and quartz burner B arranged crosswise.Quartz burner A and quartz burner B is 6000 watts of super high power quartz burners.
Comparative example 2
A treatment process for propenal waste water, comprises step:
1) distill; Distillation propenal waste water, to remove high boiling point polymkeric substance; Wherein, the COD value of propenal waste water is 20000ppm;
2) acid adjustment; Hydrochloric acid, sulfuric acid or organic acid is adopted to regulate the pH value to 2.5 of the rear waste water of distillation;
3) uviolizing process; Immersed by ultraviolet radiation device in the waste water after acid adjustment, using hydrogen peroxide as catalyzer, the organism under ultraviolet irradiation in waste water is degraded; It is 185nm that ultraviolet radiation device sends ultraviolet wavelength; Wherein, the concentration of hydrogen peroxide in waste water is 4wt%, and the time of uviolizing process is 3h; After uviolizing process, the COD value of waste water is 2700ppm;
4) biochemical treatment; Waste water after step 3) process passes into biochemical treatment tank and carries out biochemical treatment.
Aforesaid propylene aldehyde method of wastewater treatment treatment unit used, comprise be communicated with successively retort, acid adjustment pond, uviolizing pond and biochemistry pool; Wherein, uviolizing is provided with ultraviolet radiation device in pond, is provided with some quartz burners be installed in transparent quartz glass tube in ultraviolet radiation device.Quartz burner is only some can send 185nm ultraviolet tube; This quartz burner is 6000 watts of super high power quartz burners.
Comparative example 3
A treatment process for propenal waste water, comprises step:
1) distill; Distillation propenal waste water, to remove high boiling point polymkeric substance; Wherein, the COD value of propenal waste water is 20000ppm;
2) acid adjustment; Hydrochloric acid, sulfuric acid or organic acid is adopted to regulate the pH value to 2.5 of the rear waste water of distillation;
3) uviolizing process; The organism immersed by ultraviolet radiation device in the waste water after acid adjustment under ultraviolet irradiation in waste water is degraded; It is 185nm, 254nm that ultraviolet radiation device sends ultraviolet wavelength; Wherein, the time of uviolizing process is 3h; After uviolizing process, the COD value of waste water is 11300ppm;
4) biochemical treatment; Waste water after step 3) process passes into biochemical treatment tank and carries out biochemical treatment.
Aforesaid propylene aldehyde method of wastewater treatment treatment unit used, comprise be communicated with successively retort, acid adjustment pond, uviolizing pond and biochemistry pool; Wherein, uviolizing is provided with ultraviolet radiation device in pond, is provided with some quartz burners be installed in transparent quartz glass tube in ultraviolet radiation device.Quartz burner comprises the quartz burner A that can send 254nm UV-light and the quartz burner B that can send 185nm UV-light; Quartz burner A and quartz burner B arranged crosswise.Quartz burner A and quartz burner B is 6000 watts of super high power quartz burners.
Embodiment 1
As shown in Figure 1, a kind for the treatment of process of propenal waste water, comprises step:
1) distill; Distillation propenal waste water, to remove high boiling point polymkeric substance; Wherein, the COD value of propenal waste water is 20000ppm;
2) acid adjustment; Hydrochloric acid, sulfuric acid or organic acid is adopted to regulate the pH value to 2.5 of the rear waste water of distillation;
3) uviolizing process; Immersed by ultraviolet radiation device in the waste water after acid adjustment, using hydrogen peroxide as catalyzer, the organism under ultraviolet irradiation in waste water is degraded; It is 185nm, 254nm that ultraviolet radiation device sends ultraviolet wavelength; Wherein, the concentration of hydrogen peroxide in waste water is 4wt%, and the time of uviolizing process is 3h; After uviolizing process, the COD value of waste water is 2000ppm;
4) biochemical treatment; Waste water after step 3) process passes into biochemical treatment tank and carries out biochemical treatment.
Aforesaid propylene aldehyde method of wastewater treatment treatment unit used, comprise be communicated with successively retort, acid adjustment pond, uviolizing pond and biochemistry pool; Wherein, uviolizing is provided with ultraviolet radiation device in pond, is provided with some quartz burners be installed in transparent quartz glass tube in ultraviolet radiation device.Quartz burner comprises the quartz burner A that can send 254nm UV-light and the quartz burner B that can send 185nm UV-light; Quartz burner A and quartz burner B arranged crosswise.Quartz burner A and quartz burner B is 6000 watts of super high power quartz burners.
Embodiment 1 is with unique difference of comparative example 1, is immersed in waste water by ultraviolet radiation device, and be placed in above waste water by ultraviolet radiation device in comparative example 1 in embodiment 1.This difference causes embodiment 1 faster than comparative example 1 processing speed, and degradation effect of organic compound is high.
Embodiment 1 is with unique difference of comparative example 2, and embodiment 1 middle-ultraviolet lamp fluorescent tube comprises the quartz burner A that can send 254nm UV-light and the quartz burner B that can send 185nm UV-light; And comparative example 2 middle-ultraviolet lamp fluorescent tube only comprises the quartz burner B that can send 185nm UV-light.This difference causes embodiment 1 faster than comparative example 2 processing speed, and degradation effect of organic compound is high.
Embodiment 1 is with unique difference of comparative example 3, in embodiment 1 when uviolizing process, adds hydrogen peroxide as catalyzer, and do not add any catalyzer in comparative example 3 in waste water.This difference causes embodiment 1 to have great lifting than comparative example 3 treatment effect.
Embodiment 2
As shown in Figure 1, a kind for the treatment of process of propenal waste water, comprises step:
1) distill; Distillation propenal waste water, to remove high boiling point polymkeric substance; Wherein, the COD value of propenal waste water is 20000ppm;
2) acid adjustment; Hydrochloric acid, sulfuric acid or organic acid is adopted to regulate the pH value to 2.5 of the rear waste water of distillation;
3) uviolizing process; Immersed by ultraviolet radiation device in the waste water after acid adjustment, using hydrogen peroxide as catalyzer, the organism under ultraviolet irradiation in waste water is degraded; It is 185nm, 254nm that ultraviolet radiation device sends ultraviolet wavelength; Wherein, the concentration of hydrogen peroxide in waste water is 3wt%, and the time of uviolizing process is 5h; After uviolizing process, the COD value of waste water is 1900ppm;
4) biochemical treatment; Waste water after step 3) process passes into biochemical treatment tank and carries out biochemical treatment.
Aforesaid propylene aldehyde method of wastewater treatment treatment unit used, comprise be communicated with successively retort, acid adjustment pond, uviolizing pond and biochemistry pool; Wherein, uviolizing is provided with ultraviolet radiation device in pond, is provided with some quartz burners be installed in transparent quartz glass tube in ultraviolet radiation device.Quartz burner comprises the quartz burner A that can send 254nm UV-light and the quartz burner B that can send 185nm UV-light; Quartz burner A and quartz burner B arranged crosswise.Quartz burner A and quartz burner B is 6000 watts of super high power quartz burners.
Embodiment 3
As shown in Figure 1, a kind for the treatment of process of propenal waste water, comprises step:
1) distill; Distillation propenal waste water, to remove high boiling point polymkeric substance; Wherein, the COD value of propenal waste water is 20000ppm;
2) acid adjustment; Hydrochloric acid, sulfuric acid or organic acid is adopted to regulate the pH value to 3 of the rear waste water of distillation;
3) uviolizing process; Immersed by ultraviolet radiation device in the waste water after acid adjustment, using hydrogen peroxide as catalyzer, the organism under ultraviolet irradiation in waste water is degraded; It is 185nm, 254nm that ultraviolet radiation device sends ultraviolet wavelength; Wherein, the concentration of hydrogen peroxide in waste water is 5wt%, and the time of uviolizing process is 2h; After uviolizing process, the COD value of waste water is 2200ppm;
4) biochemical treatment; Waste water after step 3) process passes into biochemical treatment tank and carries out biochemical treatment.
Aforesaid propylene aldehyde method of wastewater treatment treatment unit used, comprise be communicated with successively retort, acid adjustment pond, uviolizing pond and biochemistry pool; Wherein, uviolizing is provided with ultraviolet radiation device in pond, is provided with some quartz burners be installed in transparent quartz glass tube in ultraviolet radiation device.Quartz burner comprises the quartz burner A that can send 254nm UV-light and the quartz burner B that can send 185nm UV-light; Quartz burner A and quartz burner B arranged crosswise.Quartz burner A and quartz burner B is 6000 watts of super high power quartz burners.
Embodiment 4
As shown in Figure 1, a kind for the treatment of process of propenal waste water, comprises step:
1) distill; Distillation propenal waste water, to remove high boiling point polymkeric substance; Wherein, the COD value of propenal waste water is 20000ppm;
2) acid adjustment; Hydrochloric acid, sulfuric acid or organic acid is adopted to regulate the pH value to 2.5 of the rear waste water of distillation;
3) uviolizing process; Immersed by ultraviolet radiation device in the waste water after acid adjustment, using hydrogen peroxide as catalyzer, the organism under ultraviolet irradiation in waste water is degraded; Ultraviolet radiation device sends that ultraviolet wavelength is 190,220nm; Wherein, the concentration of hydrogen peroxide in waste water is 4wt%, and the time of uviolizing process is 3h; After uviolizing process, the COD value of waste water is 2200ppm;
4) biochemical treatment; Waste water after step 3) process passes into biochemical treatment tank and carries out biochemical treatment.
Aforesaid propylene aldehyde method of wastewater treatment treatment unit used, comprise be communicated with successively retort, acid adjustment pond, uviolizing pond and biochemistry pool; Wherein, uviolizing is provided with ultraviolet radiation device in pond, is provided with some quartz burners be installed in transparent quartz glass tube in ultraviolet radiation device.Quartz burner comprises the quartz burner A that can send 254nm UV-light and the quartz burner B that can send 185nm UV-light; Quartz burner A and quartz burner B arranged crosswise.Quartz burner A and quartz burner B is 6000 watts of super high power quartz burners.
Embodiment 5
As shown in Figure 2, a kind for the treatment of process of propenal waste water, comprises step:
1) distill; Distillation propenal waste water, to remove high boiling point polymkeric substance; Wherein, the COD value of propenal waste water is 20000ppm;
2) acid adjustment; Hydrochloric acid, sulfuric acid or organic acid is adopted to regulate the pH value to 2.5 of the rear waste water of distillation;
3) uviolizing process; Immersed by ultraviolet radiation device in the waste water after acid adjustment, using ferrous ion and hydrogen peroxide as catalyzer, the organism under ultraviolet irradiation in waste water is degraded; It is 185nm, 254nm that ultraviolet radiation device sends ultraviolet wavelength; Wherein, the concentration of hydrogen peroxide in waste water is 4wt%, and the concentration of ferrous ion in waste water is 0.2 wt %; The time of uviolizing process is 3h; After uviolizing process, the COD value of waste water is 1600ppm;
4) biochemical treatment; Waste water after step 3) process passes into biochemical treatment tank and carries out biochemical treatment.
Aforesaid propylene aldehyde method of wastewater treatment treatment unit used, comprise be communicated with successively retort, acid adjustment pond, uviolizing pond and biochemistry pool; Wherein, uviolizing is provided with ultraviolet radiation device in pond, is provided with some quartz burners be installed in transparent quartz glass tube in ultraviolet radiation device.Quartz burner comprises the quartz burner A that can send 254nm UV-light and the quartz burner B that can send 185nm UV-light; Quartz burner A and quartz burner B arranged crosswise.Quartz burner A and quartz burner B is 6000 watts of super high power quartz burners.
Claims (8)
1. a treatment process for propenal waste water, is characterized in that, comprises step:
1) distill; Distillation propenal waste water, to remove high boiling point polymkeric substance;
2) acid adjustment; Regulate the pH value of the rear waste water of distillation to 2-3;
3) uviolizing process; Immersed by ultraviolet radiation device in the waste water after acid adjustment, using hydrogen peroxide as catalyzer, the organism under ultraviolet irradiation in waste water is degraded; It is 180-260nm that described ultraviolet radiation device sends ultraviolet wavelength;
4) biochemical treatment; Waste water after step 3) process passes into biochemical treatment tank and carries out biochemical treatment.
2. the treatment process of propenal waste water as claimed in claim 1, is characterized in that: step 2) in, adopt hydrochloric acid, sulfuric acid or organic acid to regulate the pH value of waste water.
3. the treatment process of propenal waste water as claimed in claim 1 or 2, it is characterized in that: in step 3), the concentration of hydrogen peroxide in waste water is 3wt%-5wt%.
4. the treatment process of propenal waste water as claimed in claim 1, it is characterized in that: in step 3), catalyzer also comprises ferrous ion, and the concentration of ferrous ion in waste water is 0.1 wt-0.3 wt %.
5. the treatment process of the propenal waste water as described in claim 1 or 4, is characterized in that: in step 3), and the time of uviolizing process is 2-5h.
6. propenal method of wastewater treatment treatment unit used as claimed in claim 1, is characterized in that: comprise be communicated with successively retort, acid adjustment pond, uviolizing pond and biochemistry pool; Wherein, in described uviolizing pond, be provided with ultraviolet radiation device, in described ultraviolet radiation device, be provided with some quartz burners be installed in transparent quartz glass tube.
7. treatment unit as claimed in claim 6, is characterized in that: described quartz burner comprises the quartz burner A that can send 254nm UV-light and the quartz burner B that can send 185nm UV-light; Described quartz burner A and quartz burner B arranged crosswise.
8. treatment unit as claimed in claim 7, is characterized in that: described quartz burner A and quartz burner B is 6000 watts of super high power quartz burners.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510205891.9A CN104860470A (en) | 2015-04-28 | 2015-04-28 | Acrolein wastewater treatment method and device |
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| CN201510205891.9A CN104860470A (en) | 2015-04-28 | 2015-04-28 | Acrolein wastewater treatment method and device |
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| CN109851179A (en) * | 2019-04-09 | 2019-06-07 | 岳阳天河环保科技有限公司 | A kind of methacrylaldehyde production wastewater treatment process |
| CN117985810A (en) * | 2024-03-21 | 2024-05-07 | 湖北圣灵科技有限公司 | Wastewater recycling device for acrolein production |
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