CN202688073U - Fenton reaction device for treating landfill leachate - Google Patents
Fenton reaction device for treating landfill leachate Download PDFInfo
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- CN202688073U CN202688073U CN 201220328253 CN201220328253U CN202688073U CN 202688073 U CN202688073 U CN 202688073U CN 201220328253 CN201220328253 CN 201220328253 CN 201220328253 U CN201220328253 U CN 201220328253U CN 202688073 U CN202688073 U CN 202688073U
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Abstract
The utility model relates to the field of water treatment, in particular to a Fenton reaction device for treating landfill leachate. The Fenton reaction device comprises a reaction vessel, a water inlet is arranged at the bottom of the reaction vessel, a water outlet is arranged at the top of the reaction vessel, a flow guide device is arranged in the reaction vessel, the reaction vessel is divided into a plurality of reaction areas which are sequentially communicated, the reaction areas include a first-stage reaction area and a final-stage reaction area, the first-stage reaction area is communicated with the water inlet, the final-stage reaction area is communicated with the water outlet and provided with a backflow port I and a backflow port II, sewage flows back to the water inlet through the backflow port I and flows back to an inlet of the final-stage reaction area through the backflow port II, and each reaction area is provided with a chemical feeding device. The reaction vessel is internally divided into the reaction areas by the flow guide device, the chemical feeding device arranged in each reaction area is used for treating the sewage in a staged manner, chemical feeding quantity is decreased on the premise of sufficient reaction, the sewage flows back to different process sections by the aid of the two backflow ports arranged in the final-stage reaction area, Fenton reaction efficiency is increased, and sludge generation quantity is decreased.
Description
Technical field
The utility model relates to water treatment field, particularly a kind of Fenton's reaction device for the treatment of refuse percolate.
Background technology
Fenton process is as a kind of emerging sewage disposal technology, produces the hydroxyl radical free radical that oxidisability is only second to fluorion the organic substance in the waste water is carried out deep oxidation by collaborative, reaches the general biological treatment removal effect that is beyond one's reach.
The Degradation of common Fenton process mainly comprises organic oxidation and two kinds of effects of coagulation.Organic oxygenizement is referred to Fe
2+With H
2O
2Effect generates the free radical reaction that has the hydroxyl radical free radical of extremely strong oxidation capacity and carry out; On the other hand, the Fe that generates in the reaction (OH)
3Colloid has flocculation, adsorption function, also can remove partial organic substances in the water.Yet there are two shortcomings in the reaction unit that common Fenton process adopts: the one, need to add a large amount of added regents, and increased operation cost; The 2nd, produce a large amount of iron mud amounts, the solid-liquid separation difficulty, thus need to drop into large-scale sludge treatment device as subsequent technique.
Summary of the invention
In order to overcome above-mentioned technical problem, the purpose of this utility model is to provide the Fenton's reaction device of the treating refuse percolate that a kind of dosing is few, the sludge creation amount is low.
The technical scheme that the utility model adopts is:
A kind of Fenton's reaction device for the treatment of refuse percolate, comprise reaction vessel, reaction container bottom is provided with water-in, the top is provided with water outlet, be provided with guiding device in the described reaction vessel, reaction vessel is divided into a plurality of reaction zones that are communicated with successively, described reaction zone comprises the first order reaction district that is communicated with water-in and the final stage reaction zone that is communicated with water outlet, described final stage reaction zone is provided with the refluxing opening I that is back to water-in and is back to the refluxing opening II of final stage reaction zone entrance, and described each reaction zone is equipped with chemicals dosing plant.
As further improvement of the utility model, be provided with in the described reaction zone with sewage and inject, flow and carry the catalytic carrier of ferrous ion, described catalytic carrier comprises aluminum oxide porous filler, the filler particles diameter is 0.2-0.5mm.
As further improvement of the utility model, described guiding device comprises the one-level guide shell that is arranged on the reaction vessel middle part, described one-level guide shell periphery is provided with the secondary guide shell, the upper end of one-level guide shell is communicated with secondary guide shell upper end, described one-level guide shell surrounds described first order reaction district, surround the second order reaction district between described one-level guide shell and the secondary guide shell, surround the final stage reaction zone between described secondary guide shell and the reactor vessel wall.
As further improvement of the utility model, described chemicals dosing plant comprises water distributor.
As further improvement of the utility model, described chemicals dosing plant comprises the one-level chemicals dosing plant that is arranged in the first order reaction district, be arranged on the secondary chemicals dosing plant of first order reaction district outlet and be arranged on the final stage chemicals dosing plant of second order reaction district outlet.
As further improvement of the utility model, described reactor vessel wall comprises the skew wall of top and the straight wall of below, described skew wall top is provided with effluent weir, described final stage reaction zone comprises the water exit end that is surrounded by skew wall, effluent weir and secondary guide shell and the final stage conversion zone that is surrounded by straight wall and secondary guide shell, and described refluxing opening I and refluxing opening II all are located on the skew wall.
As further improvement of the utility model, described reaction vessel is provided with the return flow line I that is communicated with water-in, described return flow line I is connected with the refluxing opening I, described reaction vessel is provided with the return flow line II, and entrance, the other end that an end of described return flow line II is communicated with the final stage conversion zone are connected with the refluxing opening II.
The beneficial effects of the utility model are: the utility model is divided into a plurality of reaction zones by guiding device in reaction vessel, and at each reaction zone chemicals dosing plant is set, and sewage is carried out stage treatment, has reduced the medicine dosage under the prerequisite of fully reaction; At the final stage reaction zone two refluxing openings are set, make sewage backflow to different process sections, increased Fenton's reaction efficient, reduced the sludge creation amount.
Description of drawings
Below in conjunction with drawings and embodiments the utility model is further specified.
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of Fenton's reaction device for the treatment of refuse percolate comprises reaction vessel 1, and the central authorities of this reaction vessel 1 bottom are provided with water-in 2, and the sidewall at top is provided with water outlet 3, forms the fluid-space of central authorities' water inlet, peripheral effluent.
Be provided with guiding device in the reaction vessel 1, reaction vessel 1 be divided into a plurality of reaction zones that are communicated with successively, reaction zone comprises the first order reaction district 4 that is communicated with water-in 2 and the final stage reaction zone 5 that is communicated with water outlet 3.In the present embodiment, guiding device comprises the one-level guide shell 9 that is arranged on reaction vessel 1 middle part, and one-level guide shell 9 peripheries are provided with secondary guide shell 10, and the upper end of one-level guide shell 9 is communicated with secondary guide shell 10 upper ends.One-level guide shell 9 inside surround first order reaction district 4, surround second order reaction district 11 between one-level guide shell 9 and the secondary guide shell 10, surround final stage reaction zone 5 between secondary guide shell 10 and the reactor vessel wall.Therefore first order reaction district 4 only is communicated with second order reaction district 11, second order reaction district 11 is communicated with first order reaction district 4 and final stage reaction zone 5, after sewage enters from water-in 2, flow through first order reaction district 4 from bottom to top, flow through second order reaction district 11 from top to bottom, flow through again final stage reaction zone 5 from bottom to top, finally flow to the subsequent technique device from water outlet 3.
In the present embodiment, each reaction zone is equipped with chemicals dosing plant, comprises the one-level chemicals dosing plant 12 that is arranged in the first order reaction district 4, is arranged on the secondary chemicals dosing plant 13 of second order reaction district 11 entrances and is arranged on the final stage chemicals dosing plant 14 of final stage reaction zone 5 entrances.These chemicals dosing plants are water distributor, and the user adds H by water distributor
2O
2And ferrous salt, realize multi-stage oxidizing.The ratio control of chemical feeding quantity is one-level chemicals dosing plant chemical feeding quantity: secondary chemicals dosing plant chemical feeding quantity: final stage chemicals dosing plant chemical feeding quantity=5: 3: 2, the hydraulic detention time of controlling simultaneously each reaction zone is 1 hour.
In the present embodiment, be provided with in the reaction zone with sewage and inject, flow and carry the catalytic carrier 8 of ferrous ion, sewage carries the processes that catalytic carrier 8 flows and forms fluidized-bed structure, and its turbulent extent is high, and is higher compared with common Fenton device reaction efficient.Above-mentioned catalytic carrier 8 is a large amount of aluminum oxide porous filler, and these packing densities are near the density of water, thereby realization is mobile simultaneously with sewage, and the filler particles diameter is 0.2-0.5mm.
In the present embodiment, final stage reaction zone 5 is provided with the refluxing opening I 6 that is back to water-in 2 and the refluxing opening II 7 that is back to final stage reaction zone 5 entrances.The reactor vessel wall of reaction vessel 1 comprises the skew wall 15 of top and the straight wall 16 of below, skew wall 15 tops are provided with effluent weir, final stage reaction zone 5 comprises the water exit end 51 that surrounded by skew wall 15, effluent weir and secondary guide shell 10 and the final stage conversion zone 52 that is surrounded by straight wall 16 and secondary guide shell 10, being located on the skew wall 15 of refluxing opening I 6 and refluxing opening II 7 symmetries.
Reaction vessel 1 bottom is provided with the return flow line I 61 that is communicated with water-in 2, return flow line I 61 is connected with refluxing opening I 6, reaction vessel 1 bottom also is provided with return flow line II 71, entrance, the other end that one end of return flow line II 71 is communicated with final stage conversion zone 52 are connected with refluxing opening II 7, sewage part after the processing is back to water-in 2, re-start three grades of dosing reactions, a part is back to final stage conversion zone 52 and carries out final stage dosing reaction, and all the other flow out water outlet 3 through effluent weir.The reflux ratio of sewage is regulated according to actual effluent quality.Reflux by the two-stage that arranges, realize the Fenton's reaction controllability, also reduced the generation of iron mud simultaneously.
Compare with traditional Fenton's reaction device, COD clearance and the water outlet biochemical of the utility model device have all obtained larger improvement, such as following table.
The above be the utility model preferred embodiment, it does not consist of the restriction to the utility model protection domain.
Claims (7)
1. the Fenton's reaction device of a treating refuse percolate, comprise reaction vessel (1), reaction vessel (1) bottom is provided with water-in (2), the top is provided with water outlet (3), it is characterized in that: described reaction vessel is provided with guiding device in (1), reaction vessel (1) is divided into a plurality of reaction zones that are communicated with successively, described reaction zone comprises the first order reaction district (4) that is communicated with water-in (2) and the final stage reaction zone (5) that is communicated with water outlet (3), described final stage reaction zone (5) is provided with the refluxing opening I (6) that is back to water-in (2) and is back to the refluxing opening II (7) of final stage reaction zone (5) entrance, and described each reaction zone is equipped with chemicals dosing plant.
2. the Fenton's reaction device of a kind for the treatment of refuse percolate according to claim 1, it is characterized in that: be provided with in the described reaction zone with sewage and inject, flow and carry the catalytic carrier (8) of ferrous ion, described catalytic carrier (8) comprises aluminum oxide porous filler, and the filler particles diameter is 0.2-0.5mm.
3. the Fenton's reaction device of a kind for the treatment of refuse percolate according to claim 1 and 2, it is characterized in that: described guiding device comprises the one-level guide shell (9) that is arranged on reaction vessel (1) middle part, described one-level guide shell (9) periphery is provided with secondary guide shell (10), the upper end of one-level guide shell (9) is communicated with secondary guide shell (10) upper end, described one-level guide shell (9) surrounds described first order reaction district (4), surround second order reaction district (11) between described one-level guide shell (9) and the secondary guide shell (10), surround final stage reaction zone (5) between described secondary guide shell (10) and reaction vessel (1) wall.
4. according to claim 1 or the Fenton's reaction device of 3 described a kind for the treatment of refuse percolates, it is characterized in that: described chemicals dosing plant comprises water distributor.
5. the Fenton's reaction device of a kind for the treatment of refuse percolate according to claim 3 is characterized in that: described chemicals dosing plant comprises the one-level chemicals dosing plant (12) that is arranged in the first order reaction district (4), be arranged on the secondary chemicals dosing plant (13) of second order reaction district (11) entrance and be arranged on the final stage chemicals dosing plant (14) of final stage reaction zone (5) entrance.
6. the Fenton's reaction device of a kind for the treatment of refuse percolate according to claim 3, it is characterized in that: described reaction vessel (1) wall comprises the skew wall (15) of top and the straight wall (16) of below, described skew wall (15) top is provided with effluent weir, described final stage reaction zone (5) comprises the water exit end (51) that is surrounded by skew wall (15), effluent weir and secondary guide shell (10) and the final stage conversion zone (52) that is surrounded by straight wall (16) and secondary guide shell (10), and described refluxing opening I (6) and refluxing opening II (7) all are located on the skew wall (15).
7. the Fenton's reaction device of a kind for the treatment of refuse percolate according to claim 5 is characterized in that: described reaction vessel (1) is provided with the return flow line I (61) that is communicated with water-in (2), described return flow line I (61) is connected with refluxing opening I (6), described reaction vessel (1) is provided with return flow line II (71), and entrance, the other end that an end of described return flow line II (71) is communicated with final stage conversion zone (52) are connected with refluxing opening II (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220328253 CN202688073U (en) | 2012-07-06 | 2012-07-06 | Fenton reaction device for treating landfill leachate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220328253 CN202688073U (en) | 2012-07-06 | 2012-07-06 | Fenton reaction device for treating landfill leachate |
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| CN202688073U true CN202688073U (en) | 2013-01-23 |
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| CN 201220328253 Expired - Lifetime CN202688073U (en) | 2012-07-06 | 2012-07-06 | Fenton reaction device for treating landfill leachate |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174410A (en) * | 2015-09-15 | 2015-12-23 | 广州市广深环保科技有限公司 | Impulse type Fenton internal circulation oxidation device |
| CN105948216A (en) * | 2016-05-16 | 2016-09-21 | 江苏省环境科学研究院 | Airlift type heterogeneous Fenton reactor |
| CN107804909A (en) * | 2017-11-27 | 2018-03-16 | 江苏宜裕环保科技有限公司 | A kind of multi-cartridge Fenton's reaction tower |
| US10183878B2 (en) | 2014-02-19 | 2019-01-22 | Nanjing University | Fenton fluidized bed treatment apparatus and wastewater treatment method thereof |
| CN113967420A (en) * | 2021-06-25 | 2022-01-25 | 北京绿恒科技有限公司 | Multistage hydraulic circulating mixer |
-
2012
- 2012-07-06 CN CN 201220328253 patent/CN202688073U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10183878B2 (en) | 2014-02-19 | 2019-01-22 | Nanjing University | Fenton fluidized bed treatment apparatus and wastewater treatment method thereof |
| CN105174410A (en) * | 2015-09-15 | 2015-12-23 | 广州市广深环保科技有限公司 | Impulse type Fenton internal circulation oxidation device |
| CN105948216A (en) * | 2016-05-16 | 2016-09-21 | 江苏省环境科学研究院 | Airlift type heterogeneous Fenton reactor |
| CN105948216B (en) * | 2016-05-16 | 2018-11-06 | 江苏省环境科学研究院 | Gas-lifting type heterogeneous Fenton reaction device |
| CN107804909A (en) * | 2017-11-27 | 2018-03-16 | 江苏宜裕环保科技有限公司 | A kind of multi-cartridge Fenton's reaction tower |
| CN113967420A (en) * | 2021-06-25 | 2022-01-25 | 北京绿恒科技有限公司 | Multistage hydraulic circulating mixer |
| CN113967420B (en) * | 2021-06-25 | 2023-11-28 | 北京绿恒科技有限公司 | Multistage hydraulic circulation mixer |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |
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| CX01 | Expiry of patent term |