CN204198462U - A kind of light electrolysis-catalyzed oxidation-coagulation integrated apparatus for wastewater treatment - Google Patents
A kind of light electrolysis-catalyzed oxidation-coagulation integrated apparatus for wastewater treatment Download PDFInfo
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- CN204198462U CN204198462U CN201420515262.7U CN201420515262U CN204198462U CN 204198462 U CN204198462 U CN 204198462U CN 201420515262 U CN201420515262 U CN 201420515262U CN 204198462 U CN204198462 U CN 204198462U
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- tank body
- wastewater treatment
- catalyzed oxidation
- integrated apparatus
- distribution pipe
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Abstract
The utility model discloses a kind of light electrolysis-catalyzed oxidation-coagulation integrated apparatus for wastewater treatment, comprise a tank body, tank base is provided with water distribution pipe for passing into waste water, and water distribution pipe is provided with line mixer, and line mixer connects H
2sO
4medicine-chest and H
2o
2medicine-chest, for adding above-mentioned two kinds of solution, the below of water distribution pipe is provided with bottom aeration tube; Be provided with Fe-C packing layer by orifice plate in tank body above water distribution pipe, bottom Fe-C packing layer, be provided with filter cap; Tank interior above Fe-C packing layer is communicated with NaOH medicine-chest by alkali lye water inlet pipe, and is provided with upper strata aeration tube within it, and tank body upper strata inwall is provided with water leg, and water leg is communicated with rising pipe, and tank body top is provided with venting hole.The utility model will adopt integration apparatus, reduce facility investment and occupation area of equipment, have that purification efficiency is high, working cost is low, eco-friendly advantage, possess good industrial prospect in wastewater treatment industry.
Description
Technical field
The utility model belongs to technical field of waste water processing, is specifically related to the organic light electrolysis-catalyzed oxidation-coagulation integrated apparatus of macromole long-chain organism, phenyl ring and ring texture in a kind of wastewater treatment process.
Background technology
In the waste water of the industry discharges such as chemical industry, pharmacy, printing and dyeing, normal containing macromole long-chain organism, phenyl ring and ring texture organism, these materials be difficult to be biodegradable or degradation cycle very long, in waste water, B/C ratio is normal lower than 0.3, be not suitable for directly carrying out biochemical treatment, need to adopt the pretreatment technology such as iron-carbon micro-electrolysis, Fenton catalyzed oxidation, catalytic oxidation by hardly degraded organic substance in above-mentioned waste water by modes such as broken ring, chain rupture, direct oxidation groups, become the organism of small molecules, readily biodegradable, improve the biodegradability of waste water with this.
Conventional pretreatment technology process is see accompanying drawing 3 at present.
There is following problem in existing processing unit:
1. each processing unit is independent means, and facility investment is large, floor space is large;
2. after iron-carbon micro-electrolysis reactor runs for some time, in reactor, iron-carbon filler easily hardens, lumps, and reduces processing efficiency and even causes equipment scrapping;
3. iron-carbon micro-electrolysis reactor excess aeration causes the increase of Fe-C filler consumption, water outlet color, and Huang, chroma removal rate reduce partially;
4. Fenton catalyzed oxidation excessive Fe
2+add H
2o
2consumption, causes working cost higher.
Utility model content
The technical problem that the utility model solves is: provide that a kind of equipment investment cost is low, purification efficiency is high, working cost is low, eco-friendly light electrolysis-catalyzed oxidation-coagulation integrated apparatus, possesses good industrial prospect in wastewater treatment industry.
The utility model adopts following technical scheme to realize: a kind of light electrolysis-catalyzed oxidation-coagulation integrated apparatus for wastewater treatment, comprise a tank body 1, described tank base is provided with water distribution pipe 4 for passing into waste water, described water distribution pipe is provided with line mixer 19, and described line mixer connects H
2sO
4medicine-chest 22 and H
2o
2medicine-chest 20, for adding above-mentioned two kinds of solution, the below of described water distribution pipe 4 is provided with bottom aeration tube 5; Be provided with Fe-C packing layer 10 by orifice plate 2 in tank body above described water distribution pipe, bottom described Fe-C packing layer, be provided with filter cap 9; Tank interior above described Fe-C packing layer is communicated with NaOH medicine-chest 27 by alkali lye water inlet pipe 17, and be provided with upper strata aeration tube 11 within it, described tank body upper strata inwall is provided with water leg 13, and described water leg is communicated with rising pipe 12, and described tank body top is provided with venting hole 18.
Further, ORP on-line computing model 7 and bottom pH on-line computing model 8 is provided with in the tank body space below described Fe-C packing layer 10.
Further, the tank body below described Fe-C packing layer 10 offers openable manhole 3.
Further, DO on-line computing model 15 and upper strata pH on-line computing model 16 is provided with in the tank body space above described Fe-C packing layer 10.
Further, described tank body top is provided with batching hole 14, for the Fe-C filler of supplementary loss.
Further, described bottom aeration tube 5 is connected with gas blower 21 respectively with upper strata aeration tube 11.
Further, described bottom aeration tube 5 is provided with air solenoid valve 6, controls aeration and realizes the regular back flushing use of Fe-C filler.
Further, described water distribution pipe 4 and Wastewater Pretreatment equipment connection.
Preferably, described Wastewater Pretreatment equipment comprises the grille well 24 and equalizing tank 26 that are communicated with successively, described grille well inside is provided with rotary grid 25 for the treatment of large size foreign material, is provided with lift pump 23 and pretreated waste water is delivered to water distribution pipe 4 in tank body in described equalizing tank.
Fe-C light electrolysis, Fenton catalyzed oxidation, coagulation three processing units are incorporated in an integration apparatus by the utility model, reduce facility investment and occupation area of equipment; Meanwhile, solve Fe-C filler caking, harden problem, extension device work-ing life; When adopting macromole long-chain organism, phenyl ring and ring texture organism in technique scheme process waste water, the Fe that catalyzed oxidation is required can be met
2+concentration, does not increase oxidation excessive Fe again
2+the H consumed
2o
2consumption.
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Accompanying drawing explanation
Fig. 1 is the tank interior structural representation in the utility model.
Fig. 2 is the light electrolysis-catalyzed oxidation-coagulation integrated apparatus schematic diagram after connecting in the utility model..
Fig. 3 is the schema of existing wastewater preprocessing process.
Number in the figure: 1-tank body, 2-orifice plate, 3-manhole, 4-water distribution pipe, aeration tube bottom 5-, 6-air solenoid valve, 7-ORP on-line computing model, pH on-line computing model bottom 8-, 9-filter cap, 10-Fe-C packing layer, 11-upper strata aeration tube, 12-rising pipe, 13-water leg, 14-batching hole, 15-DO on-line computing model, 16-upper strata pH on-line computing model, 17-alkali lye water inlet pipe, 18-venting hole, 19-line mixer, 20-H
2o
2medicine-chest, 21-gas blower, 22-H
2sO
4medicine-chest, 23-lift pump, 24-grille well, 25-rotary grid, 26-equalizing tank, 27-NaOH medicine-chest.
Embodiment
Embodiment
See Fig. 1 and Fig. 2, be provided with water distribution pipe 4 bottom the tank body 1 of light electrolysis-catalyzed oxidation-coagulation integrated apparatus for passing into waste water, water distribution pipe is provided with line mixer 19, and line mixer connects H
2sO
4medicine-chest 22 and H
2o
2medicine-chest 20, carries out micro-electrolysis reaction for adding above-mentioned two kinds of solution, and the below of water distribution pipe 4 is provided with bottom aeration tube 5; Be provided with bottom Fe-C packing layer 10, Fe-C packing layer by orifice plate 2 in tank body above water distribution pipe and be provided with filter cap 9; Tank interior above Fe-C packing layer is communicated with NaOH medicine-chest 27 by alkali lye water inlet pipe 17, and be provided with upper strata aeration tube 11 within it, tank body upper strata inwall is provided with water leg 13, water leg is communicated with rising pipe 12, tank body top is provided with venting hole 18, bottom aeration tube 5 is connected with gas blower 21 respectively with upper strata aeration tube 11, and wherein, bottom aeration tube 5 is provided with air solenoid valve 6.
Concrete, above-mentioned light electrolysis-catalyzed oxidation-coagulation integrated apparatus also comprises following accessory structure: be provided with ORP on-line computing model 7 and bottom pH on-line computing model 8 in the tank body space below Fe-C packing layer 10; Tank body below Fe-C packing layer 10 offers openable manhole 3; DO on-line computing model 15 and upper strata pH on-line computing model 16 is provided with in tank body space above Fe-C packing layer 10; Tank body top is provided with batching hole 14; Water distribution pipe 4 and Wastewater Pretreatment equipment connection, wherein Wastewater Pretreatment equipment comprises the grille well 24 and equalizing tank 26 that are communicated with successively, grille well inside is provided with rotary grid 25 for the treatment of large size foreign material, is provided with lift pump 23 and pretreated waste water is delivered to water distribution pipe 4 in tank body in equalizing tank.
The technological principle of the utility model process waste water is as follows: waste water enters equalizing tank after diameter in waste water is greater than 5mm coarse particles and the removal of other foreign material by the grid in grille well, waste water promotes through former water lift pump 23 in equalizing tank after water quality equilibrium, the perforation water distribution pipe 4 bottom tank body 1 is entered through line mixer 19, by adding sulfuric acid in line mixer 19, hydrogen peroxide, the PH on-line computing model that add-on is installed by tank base and ORP on-line computing model control reactive chemistry environment, wherein PH span of control is 3.0 ~ 4.0, different wastewater oxidation reduction potential span of control is different, by limber up period determination optimum oxidation reduction potential span of control.
The orifice plate of the Fe-C packing layer in tank body is equipped with filter cap, and filter cap plays water, gas passage and prevents Fe-
The effect that C filler drops.After equipment water inlet certain hour, air solenoid valve 6 is opened, the pressurized air provided by gas blower enters bottom aeration tube 5, air enters Fe-C packing layer from filter cap 9, filtrate is loosened, small-particle carbon granules, the iron filings of simultaneous oxidation stripping fall into device bottom, regularly open manhole cleaning bottom carbon granules, iron filings.
The process of catalyzed oxidation is, waste water enters in Fe-C packing layer 10, due to adding of sulfuric acid, in acid condition, form numerous small galvanic cell between iron and charcoal, what discharge active extremely strong H-, nascent state H-can that oxidation-reduction occurs be anti-with the benzene in waste water, toluene, ethylene dichloride, heterogeneous ring compound etc., realize the broken ring of phenyl ring, heterocycle and macromolecular compound, chain rupture, Fe-C filler occurs to react with under electrode:
Anode Fe-2e
-→ Fe
2+
Negative electrode 2H
++ 2e
-→ H
2
H simultaneously
2o
2by Fe
2+catalysis produces HO and HO
2, thus cause and propagate radical chain reaction, accelerate the oxidation of organism and reducing substances.Oxidation mechanism is as follows:
RH+HO·→R·+H
2O
R·+O
2→ROO·
RH+ROO·→ROOH+R·
ROO·+ROO·→ROH+R
1COR
2+O
2
RH+O
2→R·+HO
2·
HO
2·→H
++O
2·
-
R·+O
2·-→ROO
-→···CO
2+HO
2
Waste water after Fe-C packing layer 10, the organism of part difficult degradation in waste water through broken ring, chain rupture and the catalyzed oxidation of part, the biodegradability of waste water is improved, simultaneously part COD be removed.
Waste water enters tank body top through after Fe-C packing layer, and pass into pressurized air in this region by upper strata aeration tube 11, air capacity is controlled by DO on-line computing model, the residual F e that span of control 1.20 ~ 1.5mg/L, Fe-C filler dissociation goes out
2+dioxygen oxidation in the pressurized air be passed into becomes Fe
3+.
While passing into air, add NaOH solution by alkali lye water inlet pipe 17, the add-on of NaOH is controlled by PH on-line computing model, PH span of control 6.5 ~ 7.5.Under meta-alkalescence condition, Fe
3+fe (OH) is generated with reaction
3, form Fe
3+centered by gel, gel has higher adsorption, can remove COD further by the insoluble organism of absorbed portion.
The supernatant liquid overflow of waste water enters water leg and enters back segment settling apparatus from rising pipe 12; The hydrogen produced and the pressurized air that passes into by venting hole 18 through high altitude discharge.
Above, be only the concrete case study on implementation of the utility model and illustrate, rights protection scope of the present utility model can not be limited with this.All equivalences done according to the utility model application claims and description change and amendment, all in the scope of the utility model protection.
Claims (9)
1. light electrolysis-catalyzed oxidation-coagulation the integrated apparatus for wastewater treatment, it is characterized in that: comprise a tank body (1), described tank base is provided with water distribution pipe (4) for passing into waste water, described water distribution pipe is provided with line mixer (19), and described line mixer connects H
2sO
4medicine-chest (22) and H
2o
2medicine-chest (20), for adding above-mentioned two kinds of solution, the below of described water distribution pipe (4) is provided with bottom aeration tube (5);
Be provided with Fe-C packing layer (10) by orifice plate (2) in tank body above described water distribution pipe, bottom described Fe-C packing layer, be provided with filter cap (9);
Tank interior above described Fe-C packing layer is communicated with NaOH medicine-chest (27) by alkali lye water inlet pipe (17), and be provided with upper strata aeration tube (11) within it, described tank body upper strata inwall is provided with water leg (13), described water leg is communicated with rising pipe (12), and described tank body top is provided with venting hole (18).
2. a kind of light electrolysis-catalyzed oxidation-coagulation integrated apparatus for wastewater treatment according to claim 1, is characterized in that: be provided with ORP on-line computing model (7) and bottom pH on-line computing model (8) in the tank body space of described Fe-C packing layer (10) below.
3. a kind of light electrolysis-catalyzed oxidation-coagulation integrated apparatus for wastewater treatment according to claim 2, is characterized in that: the tank body of described Fe-C packing layer (10) below offers openable manhole (3).
4. a kind of light electrolysis-catalyzed oxidation-coagulation integrated apparatus for wastewater treatment according to claim 1, is characterized in that: be provided with DO on-line computing model (15) and upper strata pH on-line computing model (16) in the tank body space of described Fe-C packing layer (10) top.
5. a kind of light electrolysis-catalyzed oxidation-coagulation integrated apparatus for wastewater treatment according to claim 4, is characterized in that: described tank body top is provided with batching hole (14).
6. a kind of light electrolysis-catalyzed oxidation-coagulation integrated apparatus for wastewater treatment according to claim 1, is characterized in that: described bottom aeration tube (5) is connected with gas blower (21) respectively with upper strata aeration tube (11).
7. a kind of light electrolysis-catalyzed oxidation-coagulation integrated apparatus for wastewater treatment according to claim 6, is characterized in that: described bottom aeration tube (5) is provided with air solenoid valve (6).
8. a kind of light electrolysis-catalyzed oxidation-coagulation integrated apparatus for wastewater treatment according to any one of claim 1-7, is characterized in that: described water distribution pipe (4) and Wastewater Pretreatment equipment connection.
9. a kind of light electrolysis-catalyzed oxidation-coagulation integrated apparatus for wastewater treatment according to claim 8, it is characterized in that: described Wastewater Pretreatment equipment comprises the grille well (24) and equalizing tank (26) that are communicated with successively, described grille well inside is provided with rotary grid (25) for the treatment of large size foreign material, is provided with lift pump (23) and pretreated waste water is delivered to water distribution pipe (4) in tank body in described equalizing tank.
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|---|---|---|---|
| CN201420515262.7U CN204198462U (en) | 2014-09-09 | 2014-09-09 | A kind of light electrolysis-catalyzed oxidation-coagulation integrated apparatus for wastewater treatment |
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|---|---|---|---|
| CN201420515262.7U CN204198462U (en) | 2014-09-09 | 2014-09-09 | A kind of light electrolysis-catalyzed oxidation-coagulation integrated apparatus for wastewater treatment |
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| CN204198462U true CN204198462U (en) | 2015-03-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107176743A (en) * | 2017-05-05 | 2017-09-19 | 四川沃兹凯兰科技有限公司 | A kind of processing method of organic wastewater |
-
2014
- 2014-09-09 CN CN201420515262.7U patent/CN204198462U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107176743A (en) * | 2017-05-05 | 2017-09-19 | 四川沃兹凯兰科技有限公司 | A kind of processing method of organic wastewater |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 410100 Xingsha Road, Changsha Economic Development Zone, Hunan, No. 15 Patentee after: HUNAN AEROSPACE KAITIAN WATER SERVICE Co.,Ltd. Address before: 410100 Xingsha Road, Changsha Economic Development Zone, Hunan, No. 15 Patentee before: HUNAN KAITIAN WATER Co.,Ltd. |