CN204211576U - Foamed iron reduction and Fenton oxidation integrated reaction device - Google Patents
Foamed iron reduction and Fenton oxidation integrated reaction device Download PDFInfo
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- CN204211576U CN204211576U CN201420709483.8U CN201420709483U CN204211576U CN 204211576 U CN204211576 U CN 204211576U CN 201420709483 U CN201420709483 U CN 201420709483U CN 204211576 U CN204211576 U CN 204211576U
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- fenton oxidation
- foamed iron
- reductive jar
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Abstract
The utility model relates to a kind of waste disposal plant, be specially foamed iron reduction and Fenton oxidation integrated reaction device, comprise the foamed iron reductive jar of sealing, the pre-acidified inlet flume of annular is arranged at foamed iron reductive jar top, rising pipe is had bottom foamed iron reductive jar, rising pipe connects Fenton oxidation pond, Fenton oxidation pond overcoat has alkali reaction pond, foamed iron reductive jar, Fenton oxidation pond, alkali reaction pond are arranged in outer tank, water exit is had between foamed iron reductive jar and outer tank, outer tank top has overflow to export, and mud discharging mouth is arranged at bottom; In Fenton oxidation pond, sewage overflow is in alkali reaction pond, then overflows in outer tank in alkali reaction pond.The reduction of foamed iron that the utility model provides and Fenton oxidation integrated reaction device, can realize the combination of the reduction of foam Zero-valent Iron, Fenton advanced oxidation and flocculation sediment three technology, for continuing the process carrying out used water difficult to degradate efficiently.
Description
Technical field
The utility model relates to a kind of waste disposal plant, is specially foamed iron reduction and Fenton oxidation integrated reaction device.
Background technology
Zero-valent Iron reduction technique and Fenton high-level oxidation technology have obtained and have studied widely and use in the process of used water difficult to degradate, have played unique effect.The cardinal principle of Zero-valent Iron reduction technique removes in used water difficult to degradate by the reductive action of Zero-valent Iron the pollution substance or group that have compared with strong electronegativity, make its lack of toxicity or reduction, thus improve its wastewater biodegradability, be conducive to follow-up further process, and foam Zero-valent Iron because of its proportion and aqueous phase near, can be suspended in waste water, widen the Application Areas of Zero-valent Iron reduction technique greatly.And Fenton high-level oxidation technology carrys out the pollution substance in oxidized waste water with reductibility in various degree mainly through the strong oxidizing property free radical that Fenton's reaction produces, it is made to decompose or thorough mineralising.Flocculation sediment technology uses a kind of technology comparatively widely in waste water physicochemical processing mode, the flocculation sediment being mainly used in molecule is separated, obtain the water outlet after clarification, need to add coagulating agent to complete the object that the catching of finely ground particles, absorption etc. reach removal.
In actual use, these three kinds of processing units separately use usually, and under partial picture, Zero-valent Iron reduction treatment unit and flocculation sediment processing unit can combinationally use, or Fenton advanced oxidation processing unit and flocculation sediment processing unit can combinationally use.But these three kinds of technology have stronger complementarity, as reaction conditions needed for Zero-valent Iron reduction technique and Fenton high-level oxidation technology is comparatively similar, as all needed sufficient mixing, react under acidic conditions, the hard-degraded substance being in high oxidation state is difficult to be oxidized by Fenton reagent usually, but after these materials elder generations and Zero-valent Iron reaction remove Strong oxdiative group, carry out Fenton oxidation again can improve oxidation efficiency greatly, the reduzate normally ferrous ion of Zero-valent Iron under acid oxygen free condition simultaneously, ferrous ion is one of main reactant of Fenton oxidation reaction, in addition, the product iron ion of Fenton's reaction is conventional coagulating agent composition, can by the direct coagulation reagent as flocculation sediment after alkalization.If integrated by these three kinds of processing units, reagent, simple flow can be saved, and the processing efficiency of used water difficult to degradate can be improved greatly.
Utility model content
For above-mentioned technical problem, the utility model provides a kind of integrated reacting device, and foam Zero-valent Iron reduction unit, Fenton high-level oxidation technology and flocculation sediment unit are integrated in a reaction unit, concrete technical scheme is:
Foamed iron reduction and Fenton oxidation integrated reaction device, comprise the foamed iron reductive jar of sealing, the pre-acidified inlet flume of annular is arranged at foamed iron reductive jar top, have rising pipe bottom foamed iron reductive jar, rising pipe connects Fenton oxidation pond, and Fenton oxidation pond overcoat has alkali reaction pond, foamed iron reductive jar, Fenton oxidation pond, alkali reaction pond are arranged in outer tank, have water exit between foamed iron reductive jar and outer tank, outer tank top has overflow to export, and mud discharging mouth is arranged at bottom; In Fenton oxidation pond, sewage overflow is in alkali reaction pond, then overflows in outer tank in alkali reaction pond;
Foam Zero-valent Iron filler and stirring system is had in described foamed iron reductive jar;
Hydrogen peroxide chemical feed pipe and stirring rake is had in described Fenton oxidation pond;
Alkali chemical feed pipe and whipping appts is had in described alkali reaction pond.
Be respectively equipped with flow-stopping plate between described Fenton oxidation pond and alkali reaction pond, between alkali reaction pond and outer tank and form roundabout sludge settling district.
Foamed iron reduction and Fenton oxidation integrated reaction device that the utility model provides, pre-acidified inlet flume is pre-acidified district, pH is first adjusted to 5-6 in pre-acidified district by the waste water of difficult degradation, enter the foam Zero-valent Iron reduction zone in foamed iron reductive jar, degraded or reductive water in hard-degraded substance or group, then Fenton oxidation pond is entered, add certain density hydrogen peroxide, the oxidising process of pollution substance is carried out by high-speed stirring, waste water enters the alkali reaction pond of bottom, Fenton oxidation pond afterwards, pH is adjusted to 7.5-8.5, iron ion in water and hydroxide ion form hydroxy water compound, there is good flocculation sediment effect, after flocculation sediment region completes precipitation, supernatant liquor is by the overflow outlet water outlet of outer tank top, the mud of bottom settlings is discharged by mud discharging mouth.
The reduction of foamed iron that the utility model provides and Fenton oxidation integrated reaction device, can realize the combination of the reduction of foam Zero-valent Iron, Fenton advanced oxidation and flocculation sediment three technology, for continuing the process carrying out used water difficult to degradate efficiently.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Accompanying drawings concrete technical scheme of the present utility model.As shown in Figure 1, foamed iron reduction and Fenton oxidation integrated reaction device, comprise the foamed iron reductive jar 1 of sealing, the pre-acidified inlet flume 11 of annular is arranged at foamed iron reductive jar 1 top, pre-acidified inlet flume 11 is pre-acidified district and inlet flume simultaneously, waste water acidifying in pre-acidified inlet flume 11, and pH is adjusted to 5-6, then enter in foamed iron reductive jar 1, foamed iron reductive jar 1 inner chamber is foam Zero-valent Iron reduction zone; Foam Zero-valent Iron filler and stirring system is had in described foamed iron reductive jar 1; Waste water carries out reduction treatment in foamed iron reductive jar 1, adopts foam Zero-valent Iron as filler, realizes full hybrid reaction by stirring system; The foamed iron reductive jar 1 of sealing reduces dissolving in of oxygen, promotes reduction effect;
Have rising pipe 12 bottom foamed iron reductive jar 1, rising pipe 12 connects Fenton oxidation pond 3, has hydrogen peroxide chemical feed pipe 31 and stirring rake in described Fenton oxidation pond 3; Waste water discharges a large amount of ferrous ions in foamed iron reductive jar 1, when wastewater streams is to Fenton oxidation pond 3, adds certain density hydrogen peroxide and ferrous ion forms Fenton's reaction system, by stirring rake high-speed stirring, and hard-degraded substance in oxidized waste water;
Fenton oxidation pond 3 overcoat has alkali reaction pond 4, has alkali chemical feed pipe 41 and whipping appts in described alkali reaction pond 4; In Fenton oxidation pond 3, waste water outflow is in alkali reaction pond 4, and in alkali reaction pond 4, sewage pH is adjusted to 7.5-8.5, makes the iron ion in waste water form the hydroxyl flocs unit of iron;
Foamed iron reductive jar 1, Fenton oxidation pond 3, alkali reaction pond 4 are arranged in outer tank 2, have water exit between foamed iron reductive jar 1 and outer tank 2, and outer tank 2 top has overflow to export 21, and mud discharging mouth 22 is arranged at bottom; Sewage overflows in outer tank 2 in alkali reaction pond 4; Be respectively equipped with flow-stopping plate 5 between described Fenton oxidation pond 3 and alkali reaction pond 4, between alkali reaction pond 4 and outer tank 2 and form roundabout sludge settling district; Sludge settling district is configured to the gallery that width increases successively, and the hydroxyl flocs unit of iron reacts gradually at this, be polymerized, precipitate; The supernatant liquor of waste water after flocculation sediment exports 21 with the water exit of outer tank 2 from overflow through foamed iron reductive jar 1 and discharges.Mud is discharged from mud discharging mouth 22.
Claims (2)
1. foamed iron reduction and Fenton oxidation integrated reaction device, it is characterized in that: the foamed iron reductive jar (1) comprising sealing, the pre-acidified inlet flume (11) of annular is arranged at foamed iron reductive jar (1) top, rising pipe (12) is arranged at foamed iron reductive jar (1) bottom, rising pipe (12) connects Fenton oxidation pond (3), Fenton oxidation pond (3) overcoat has alkali reaction pond (4), foamed iron reductive jar (1), Fenton oxidation pond (3), alkali reaction pond (4) is arranged in outer tank (2), water exit is had between foamed iron reductive jar (1) and outer tank (2), outer tank (2) top has overflow to export (21), mud discharging mouth (22) is arranged at bottom, Fenton oxidation pond (3) interior sewage overflow in alkali reaction pond (4), then overflows in outer tank (2) in alkali reaction pond (4),
Foam Zero-valent Iron filler and stirring system is had in described foamed iron reductive jar (1);
Hydrogen peroxide chemical feed pipe (31) and stirring rake is had in described Fenton oxidation pond (3);
Alkali chemical feed pipe (41) and whipping appts is had in described alkali reaction pond (4).
2. foamed iron reduction according to claim 1 and Fenton oxidation integrated reaction device, is characterized in that: be respectively equipped with flow-stopping plate (5) between described Fenton oxidation pond (3) and alkali reaction pond (4), between alkali reaction pond (4) and outer tank (2) and form roundabout sludge settling district.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420709483.8U CN204211576U (en) | 2014-11-24 | 2014-11-24 | Foamed iron reduction and Fenton oxidation integrated reaction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420709483.8U CN204211576U (en) | 2014-11-24 | 2014-11-24 | Foamed iron reduction and Fenton oxidation integrated reaction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204211576U true CN204211576U (en) | 2015-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420709483.8U Expired - Fee Related CN204211576U (en) | 2014-11-24 | 2014-11-24 | Foamed iron reduction and Fenton oxidation integrated reaction device |
Country Status (1)
| Country | Link |
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| CN (1) | CN204211576U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105621740A (en) * | 2016-01-19 | 2016-06-01 | 东华大学 | Fe-recycling Fenton oxidation method with zero sludge discharge and device thereof |
| CN105645633A (en) * | 2016-01-07 | 2016-06-08 | 江苏南大环保科技有限公司 | High-concentration nitrobenzene wastewater pretreatment device and treatment method |
| CN111847720A (en) * | 2020-07-31 | 2020-10-30 | 江苏南大华兴环保科技股份公司 | Pretreatment method of furan wastewater |
| CN114133019A (en) * | 2021-11-29 | 2022-03-04 | 哈尔滨工业大学 | Device for activating oxidant by sound-driven similar-foamed-iron porous fixed bed and method for treating wastewater by using device |
-
2014
- 2014-11-24 CN CN201420709483.8U patent/CN204211576U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105645633A (en) * | 2016-01-07 | 2016-06-08 | 江苏南大环保科技有限公司 | High-concentration nitrobenzene wastewater pretreatment device and treatment method |
| CN105645633B (en) * | 2016-01-07 | 2018-08-24 | 南京大学 | A kind of highly concentrated nitrobenzene wastewater pretreatment unit and processing method |
| CN105621740A (en) * | 2016-01-19 | 2016-06-01 | 东华大学 | Fe-recycling Fenton oxidation method with zero sludge discharge and device thereof |
| CN105621740B (en) * | 2016-01-19 | 2018-04-06 | 东华大学 | A kind of ferrikinetics and the Fenton oxidation method and its device of sludge zero discharge |
| CN111847720A (en) * | 2020-07-31 | 2020-10-30 | 江苏南大华兴环保科技股份公司 | Pretreatment method of furan wastewater |
| CN111847720B (en) * | 2020-07-31 | 2022-09-06 | 江苏南大华兴环保科技股份公司 | Pretreatment method of furan wastewater |
| CN114133019A (en) * | 2021-11-29 | 2022-03-04 | 哈尔滨工业大学 | Device for activating oxidant by sound-driven similar-foamed-iron porous fixed bed and method for treating wastewater by using device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150318 Termination date: 20181124 |