CN215048974U - A novel fenton oxidation device for industrial waste water preliminary treatment - Google Patents
A novel fenton oxidation device for industrial waste water preliminary treatment Download PDFInfo
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- CN215048974U CN215048974U CN202120742806.3U CN202120742806U CN215048974U CN 215048974 U CN215048974 U CN 215048974U CN 202120742806 U CN202120742806 U CN 202120742806U CN 215048974 U CN215048974 U CN 215048974U
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Abstract
The utility model discloses a novel fenton oxidation device for industrial waste water preliminary treatment relates to environmental protection technology field, the device includes that catalytic oxidation jar and composition are Fe78Si8B14The catalytic oxidation tank is internally and uniformly provided with the amorphous alloy strips. The utility model relates to a novel fenton oxidation device for industrial waste water preliminary treatment uses active high, easily retrieves, corrosion-resistant metallic glass strip to replace ferrous sulfate, forms novel high-efficient fenton oxidation system, and metallic glass has stronger catalysis than ferrous sulfateThe activity can improve the efficiency of fenton reaction, and for the ferrous sulfate of liquid form, solid-state metallic glass retrieves more easily in the use, can effectively solve the various problems that exist in the traditional fenton technique.
Description
Technical Field
The utility model relates to an environmental protection technology field, concretely relates to a novel fenton oxidation device for industrial waste water preliminary treatment.
Background
The traditional Fenton oxidation technology is developed to a certain extent in the field of industrial wastewater treatment at present, and is mature and applied in the field of petrochemical wastewater treatment particularly. The chemical wastewater is difficult to treat, mainly because the chemical wastewater contains a large amount of organic pollutants with complex and stable structure, high toxicity and strong hydrophobicity, the common oxidation method has the defects of weak oxidizability and high selectivity, and is generally only effective on unsaturated aliphatic hydrocarbons. The Fenton treatment system represented by ferrous sulfate in the advanced oxidation method utilizes a liquid catalyst to catalyze hydroxyl radicals generated by hydrogen peroxide to have strong oxidizability, and can oxidize and decompose macromolecular organic matters with complex and stable structures and organic pollutants which have high toxicity and are difficult to be metabolized by microorganisms in the traditional process into organic matter molecules which are short in chain, simple in structure and easy to degrade through oxidation reaction and even directly convert the organic matter molecules into inorganic matters.
Although the fenton treatment system represented by ferrous sulfate has a long service life, the fenton treatment system has the defects of easy hardening, difficult recovery, easy secondary pollution, high cost and the like, which greatly affects the treatment efficiency and the treatment quality of the wastewater, and causes the problems of large pressure of the conventional treatment process, narrow application range and the like.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a novel fenton oxidation unit for industrial waste water preliminary treatment to solve current fenton processing system that uses ferrous sulfate as the representative and though have had the live time of longer time, but have easily hardened, difficult recovery, easily cause secondary pollution, shortcoming such as with high costs, this treatment effeciency and the treatment quality of waste water that have influenced waste water to a great extent, and cause conventional treatment process pressure great, and the narrower scheduling problem of range of application.
In order to achieve the above object, the present invention provides the following technical solutions:
according to the utility modelIn a first aspect, a novel fenton oxidation device for pretreatment of industrial wastewater, the device comprising a catalytic oxidation tank and Fe as a component78Si8B14The catalytic oxidation tank is internally and uniformly provided with the amorphous alloy strips.
Furthermore, a water inlet is formed in the bottom end of the catalytic oxidation tank, and a water outlet is formed in the top end of the catalytic oxidation tank.
Further, the bottom end of the catalytic oxidation tank is provided with H2O2A water inlet.
Further, a stirrer is installed in the catalytic oxidation tank.
Further, a motor is installed above the catalytic oxidation tank, and the stirrer is installed on the motor.
Furthermore, a glass fiber reinforced plastic weir plate with holes is arranged in the catalytic oxidation tank.
Furthermore, the number of the glass fiber reinforced plastic weir plates is two, and an accommodating cavity for accommodating the amorphous alloy strip is arranged between the two glass fiber reinforced plastic weir plates.
Further, the device also comprises a circulating pump and a return pipeline, and the liquid in the catalytic oxidation tank completes circulation through the return pipeline under the action of the circulating pump.
Further, a pH tester is arranged on the catalytic oxidation tank.
The utility model has the advantages of as follows:
the utility model relates to a novel fenton oxidation unit for industrial waste water preliminary treatment uses the activity height, easily retrieves, corrosion-resistant metallic glass strip replaces ferrous sulfate, forms novel high-efficient fenton oxidation system, and metallic glass has stronger catalytic activity than ferrous sulfate, can improve the efficiency of fenton reaction, and for the ferrous sulfate of liquid form, solid-state metallic glass retrieves more easily in the use, can effectively solve the various problems that exist in the traditional fenton technique. The formed novel efficient Fenton oxidation system can be applied to various large industrial sewage treatment plants and is arranged between a solid-water separation process and an activated sludge aeration tank in the traditional sewage treatment process to carry out oxidation treatment on organic pollutants in sewage. The organic pollutants with high toxicity and difficult degradation can be effectively treated in the system, thereby not only reducing the concentration of the pollutants in the inlet water of the subsequent process, but also reducing the treatment difficulty of the pollutants. The device of the utility model can effectively reduce the operating pressure of the sewage treatment process, promote the sewage treatment level and prolong the service life of the facility.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic structural diagram of a novel fenton oxidation device for industrial wastewater pretreatment provided in embodiment 1 of the present invention;
in the figure: catalytic oxidation tank 1, amorphous alloy strip 2, water inlet 3, water outlet 4, H2O2 A water inlet 5, a stirrer 6, a motor 7, a glass fiber reinforced plastic weir plate 8 with holes, a circulating pump 9, a backflow pipeline 10 and a pH tester 11.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
A novel Fenton oxidation apparatus for pretreatment of industrial wastewater as shown in FIG. 1 comprises a catalytic oxidation tank 1 and a component of Fe78Si8B14The catalytic oxidation tank 1 is internally and uniformly provided with the amorphous alloy strips 2.
The utility model discloses a novel fenton oxidation unit places the metallic glass strip in catalytic oxidation jar 1, and under acidic condition, hydrogen peroxide solution converts the hydroxyl radical under the effect of metallic glass strip, and the redox potential of hydroxyl radical is 2.80v (only be less than 2.87v of fluorine in the nature), and the organic matter is oxidized into carbon dioxide and water under the oxidation of oxidant. The amorphous alloy strip 2 has the composition of Fe78Si8B14The content of the wastewater is 2-6g/L, the wastewater has stronger catalytic activity than ferrous sulfate, the efficiency of Fenton reaction can be improved, and compared with the ferrous sulfate in a liquid form, the solid amorphous alloy strip 2 is easier to recover in the using process.
The bottom of the catalytic oxidation tank 1 is provided with a water inlet 3, and the top is provided with a water outlet 4.
The bottom end of the catalytic oxidation tank 1 is provided with H2O2 A water inlet 5. H2O2The water inlet 5 is mainly used for the water with the concentration of 30 percent H2O2The content of the wastewater is 2-10g/L, the hydrogen peroxide is converted into hydroxyl radicals under the action of the amorphous alloy strip 2, the oxidation-reduction potential of the hydroxyl radicals is 2.80v (only lower than 2.87v of fluorine in nature), and the organic matters are oxidized into carbon dioxide and water under the oxidation action of the oxidant.
A stirrer 6 is arranged in the catalytic oxidation tank 1. A motor 7 is installed above the catalytic oxidation tank 1, and a stirrer 6 is installed on the motor 7. Through above-mentioned technical scheme, can realize the intensive mixing of the interior reactant of catalytic oxidation jar 1, provide reaction efficiency.
Two glass fiber reinforced plastic weir plates 8 with holes are installed in the catalytic oxidation tank 1, and an accommodating cavity for accommodating the amorphous alloy strip 2 is formed between the two glass fiber reinforced plastic weir plates 8. Further, the stirring paddle of the stirrer 6 is positioned outside the accommodating cavity. The setting in holding chamber can provide fixed place of placing for metallic glass strip 2, prevents its and the stirring rake contact with agitator 6, avoids the friction harm of metallic glass strip 2 and stirring rake, and glass steel weir plate 8 designs into the band hole structure, enables waste water, H2O2And fully contacts and reacts with the amorphous alloy strip 2.
The device also comprises a circulating pump 9 and a return pipeline 10, and the liquid in the catalytic oxidation tank 1 completes circulation through the return pipeline 10 under the action of the circulating pump 9. The Fenton oxidation device is internally provided with a circulating pump 9 which provides circulating power for sewage backflow and fully mixes the sewage in the catalytic oxidation system, so that the reaction is more thorough, a large amount of refractory organic matters and toxic substances are decomposed, the refractory macromolecules are oxidized into micromolecular organic matters, the refractory sewage is converted into the sewage capable of being biochemically treated, and the reaction time is 20-40 minutes.
And a pH tester 11 is arranged on the catalytic oxidation tank. The pH tester 11 is used for detecting the pH value of liquid in the catalytic oxidation tank, adding acid to adjust the pH value of the sewage to 2< pH <3, adjusting the water to be acidic and then entering the catalytic oxidation tank 1; the sewage after the reaction is acidic and strong in corrosivity, can not be directly biochemically treated, is neutralized, the pH value is adjusted to 6-8, and then precipitation treatment is carried out.
Examples of the experiments
High-concentration organic wastewater is generated in a certain chemical wastewater treatment project, and the treatment capacity is 100m3The wastewater contains a large amount of pollutants such as peroxide, nondegradable COD, ammonia nitrogen, total phosphorus and the like, and has strong biological toxicity, wherein the COD value is 7500mg/L, the total phosphorus is 240mg/L, the total nitrogen is 600mg/L, and the peroxide is 3000 mg/L. Adopt the utility model discloses after the device of embodiment 1 carries out waste water treatment, solved the problem that fenton reaction catalyst activity is low, improved the degradation efficiency of waste waterAnd the effluent quality is stable, and after the reaction, the COD value of the effluent is reduced to 3000mg/L, 50mg/L of total phosphorus, 400mg/L of total nitrogen and 600mg/L of peroxide.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (9)
1. A novel fenton oxidation device for industrial wastewater pretreatment, which is characterized by comprising a catalytic oxidation tank and Fe serving as a component78Si8B14The catalytic oxidation tank is internally and uniformly provided with the amorphous alloy strips.
2. The apparatus of claim 1, wherein the catalytic oxidation tank is provided with a water inlet at a bottom end and a water outlet at a top end.
3. The apparatus of claim 1, wherein the bottom end of the catalytic oxidation canister is provided with H2O2A water inlet.
4. The apparatus of claim 1, wherein an agitator is mounted within the catalytic oxidation tank.
5. The apparatus of claim 4, wherein a motor is mounted above the catalytic oxidation tank, and the agitator is mounted on the motor.
6. The apparatus of claim 1, wherein a perforated glass fiber reinforced plastic weir plate is installed in the catalytic oxidation tank.
7. The apparatus of claim 6, wherein the number of the glass reinforced plastic weirs is two, and a receiving cavity for receiving the amorphous alloy ribbon is formed between the two glass reinforced plastic weirs.
8. The apparatus of claim 1, further comprising a circulation pump and a return line, wherein the liquid in the catalytic oxidation tank is circulated through the return line by the circulation pump.
9. The apparatus of claim 1, wherein the catalytic oxidation tank is equipped with a pH meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120742806.3U CN215048974U (en) | 2021-04-13 | 2021-04-13 | A novel fenton oxidation device for industrial waste water preliminary treatment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120742806.3U CN215048974U (en) | 2021-04-13 | 2021-04-13 | A novel fenton oxidation device for industrial waste water preliminary treatment |
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| CN215048974U true CN215048974U (en) | 2021-12-07 |
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| CN202120742806.3U Active CN215048974U (en) | 2021-04-13 | 2021-04-13 | A novel fenton oxidation device for industrial waste water preliminary treatment |
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