CN208250053U - A kind of processing system of wastewater of steel industry reuse - Google Patents
A kind of processing system of wastewater of steel industry reuse Download PDFInfo
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- CN208250053U CN208250053U CN201820605857.XU CN201820605857U CN208250053U CN 208250053 U CN208250053 U CN 208250053U CN 201820605857 U CN201820605857 U CN 201820605857U CN 208250053 U CN208250053 U CN 208250053U
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- water
- oxidation pond
- fenton oxidation
- wastewater
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Abstract
The utility model discloses a kind of processing systems of wastewater of steel industry reuse, including homogeneous pond, Fenton oxidation pond, flocculation tank, neutralization conditioning tank and multi-medium filtering tower；Fenton reagent dispensing kit is equipped with above Fenton oxidation pond, top is equipped with liquid distributor in Fenton oxidation pond；Water distribution tube is equipped in Fenton oxidation pond；Circulation pipe is equipped with above Fenton oxidation pond；It is equipped with the first agitating device in flocculation tank, is equipped with quick lime dispensing kit and flocculant dispensing kit above flocculation tank；It neutralizes and is equipped with the second agitating device in conditioning tank, the lower section for neutralizing conditioning tank is equipped with carbon dioxide air accumulator；Upper end is equipped with water distributor in multi-medium filtering tower, is successively arranged quartz sand filtration layer, activated carbon filter layer and Medical stone filtering layer at the lower section of water distributor.The utility model structure is simple, operating cost is low, treatment effeciency is high, and final outflow water can satisfy the requirement of steel and iron industry reuse.
Description
Technical field
The utility model belongs to technical field of sewage, and in particular to a kind of processing system of wastewater of steel industry reuse
System.
Background technique
It is useless that technical cooling liquid, exhaust gas cleaning solution and equipment and place flushing liquor etc. are often generated in steel and iron industry production
Liquid.Especially steel members blank before electroplating surface, spraying, generally will through overpickling, to remove the oxide on surface, because
And generate pickling waste waters.In different production technology pickling waste waters, pH value is lower, various inorganic chemical reagents, organic chemistry examination
Agent content is high, also the ferrous ion containing high concentration, zinc ion, copper ion or nickel ion etc..Therefore, wastewater of steel industry at
Divide complexity, processing difficulty is high.
Currently, the primary abatement means of wastewater of steel industry are that traditional aeration neutralization precipitation method adds biological treatment, one
As first with aeration by ferrous ions at iron ion, add the iron ion in quick lime precipitating waste water later, then add PAM
(polyacrylamide) after flocculation reaction, is separated by solid-liquid separation, separating liquid is again through biological treatment in flocculation tank into sedimentation basin
It is discharged after processing.Also someone is using ultrafiltration membrane as the guarantee technique of system, but due to useless as steel and iron industry pickling by lime
The influence of water neutralizer, the application and popularization of ultrafiltration membrane receive certain limitation and obstruction.
Although traditional treatment method is theoretically feasible, have the following problems in practical engineering applications: (1) traditional
Technique requires height to reaction condition, and impact resistance is poor, when larger wave occurs for pretreated raw water water, water quality and reaction condition
Effluent characteristics are unstable when dynamic, and effect is difficult to ensure；(2) a large amount of quick lime, excessive life have been used during chemical precipitation
Lime significantly rises pH value, hardness and basicity equal size in waste discharge, therefore, it is necessary to add acid solution to be neutralized,
Traditional acid adding process is as added hydrochloric acid, sulfuric acid to be easy to bring part ion (such as Cl in processing water-、SO42-) and conductivity is upper
It rises, so that processing effluent reuse is limited by certain use；(3) recalcitrant substance content is high in wastewater of steel industry,
B/C is than low, traditional aerating oxidation low efficiency, can not improve B/C ratio, and subsequent biological treatment will receive certain impact, and
It is difficult to make standard water discharge.
Exactly because the above various reasons, therefore limit traditional handicraft development and application in practical projects has very much
Necessity develops a kind of processing unit of new wastewater of steel industry reuse, to solve the above problems.
Utility model content
The purpose of the utility model is to provide a kind of processing systems of wastewater of steel industry reuse, though solve traditional handicraft
It is so feasible, but there is reaction condition requirement height in practical engineering applications, impact resistance is poor, is easy to bring in processing water
Part ion and and conductivity rising the problem of so that processing effluent reuse limited by certain use.
The utility model provides a kind of processing system of wastewater of steel industry reuse, including what is successively contacted by pipeline
Homogeneous pond, flocculation tank, neutralizes conditioning tank and multi-medium filtering tower at Fenton oxidation pond；
The top in the Fenton oxidation pond is equipped with Fenton reagent dispensing kit, and top is equipped in the Fenton oxidation pond
Liquid distributor, the liquid distributor are connected to by pipeline with the Fenton reagent dispensing kit；It is located at institute in the Fenton oxidation pond
It states and is coaxially provided with water distribution tube at the lower section of liquid distributor, multiple water distributing pores are offered in the water distribution tube；The bottom end of the water distribution tube
Equipped with the water inlet pipe being connected to the homogeneous pond, the water inlet pipe is equipped with high-pressure pump；
Circulation pipe is additionally provided with above the Fenton oxidation pond, the circulation pipe is connected to the water inlet pipe, described to follow
Elevator pump is additionally provided on endless tube；
The first agitating device is equipped in the flocculation tank, the top of the flocculation tank is equipped with quick lime dispensing kit
With flocculant dispensing kit, the quick lime dispensing kit and the flocculant dispensing kit pass through pipeline and flocculation tank company
It is logical；
The second agitating device is equipped in the neutralization conditioning tank, the lower section for neutralizing conditioning tank is equipped with carbon dioxide gas storage
Tank, the carbon dioxide air accumulator are connected to by pipeline with the neutralization conditioning tank；
Upper end is equipped with water distributor, the water inlet pipe of the water distributor and the multi-medium filtering tower in the multi-medium filtering tower
Line connection；It is disposed with quartz sand filtration from top to bottom at the lower section of the water distributor in the multi-medium filtering tower
Layer, activated carbon filter layer and Medical stone filtering layer.
Preferably, it is equipped in the Fenton oxidation pond, in the flocculation tank and in the neutralization conditioning tank
PH detector.
Preferably, multiple spray heads are equipped on the liquid distributor and on the water distributor.
Preferably, quartz sand is filled in the quartz sand filtration layer, the partial size of the quartz sand is 15-30mm.
Preferably, granular active carbon is filled in the activated carbon filter layer, the partial size of the granular active carbon is
5-10mm。
Preferably, the Medical stone filtering layer is filled with medical stone, and the partial size of the medical stone is 1-2mm.
Compared with prior art, the utility model has the beneficial effects that:
1) Fenton oxidation pond is arranged in the utility model, using in acid and contain a large amount of Fe2+The steel and iron industry of ion
Waste water carries out Fenton oxidation, can remove gas chromatography in waste water, additionally it is possible to generate Fe3+Ion is subsequent flocculation reaction
Flocculant raw material is provided, and water distribution tube and liquid distributor are set in Fenton oxidation pond, makes waste water and Fenton reagent relative motion,
Contact area is big, is swift in response, not only eliminated using mechanical stirring there are dead angles the drawbacks of, but also can highly effective reaction.
2) the utility model setting neutralizes conditioning tank for neutralizing the quick lime in flocculation tank water outlet, and uses dioxy
Change carbon to be neutralized, on the one hand can neutralize quick lime, on the other hand will not be to other anion be brought in processing water, it will not
Cause the conductivity for handling water to increase, is conducive to the reuse for handling water.
3) the utility model setting multi-medium filtering tower carries out multistage filtering, multi-medium filtering tower to conditioning tank water outlet is neutralized
Retention can be filtered to various suspended matters, colloidal substance etc., make purification of water quality, up to standard.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the processing system of wastewater of steel industry reuse provided by the utility model.
Figure description of symbols:
1- homogeneous pond, 2-Fenton oxidation pond, 3- flocculation tank, in 4- and conditioning tank, 5- multi-medium filtering tower, 6-
Fenton reagent dispensing kit, 7- liquid distributor, 8- water distribution tube, 9- water distributing pore, 10- water inlet pipe, 11- high-pressure pump, 12- circulation pipe, 13-
Elevator pump, the first agitating device of 14-, 15- quick lime dispensing kit, 16- flocculant dispensing kit, the second agitating device of 17-, 18- bis-
Carbonoxide air accumulator, 19- water distributor, 20- quartz sand filtration layer, 21- activated carbon filter layer, 22- Medical stone filtering layer, 23-pH
Detector.
Specific embodiment
With reference to the accompanying drawing, specific embodiment of the present utility model is described in detail, it is to be understood that this is practical
Novel protection scope is not limited by the specific implementation.
A kind of processing system of wastewater of steel industry reuse, it is specific as shown in Figure 1, include successively contacted by pipeline it is equal
Matter pond 1, flocculation tank 3, neutralizes conditioning tank 4 and multi-medium filtering tower 5 at Fenton oxidation pond 2.
Since wastewater of steel industry source is more, complicated component such as generally comprises the process waste liquor, cold in steel and iron industry production
But liquid, exhaust gas cleaning solution, equipment and place flushing liquor, acid waste liquid etc., the property of these waste liquids is different, such as process waste liquor
In contain raw materials for production, COD concentration is high, biodegradability is poor, complex treatment process, and coolant liquid, exhaust gas cleaning solution, equipment and
Place flushing liquor ingredient is then more relatively easy, and COD concentration is lower, and common biological treatment can be processed to up to standard.This
Utility model setting homogeneous pond 1 is used to place the various sewage generated in steel and iron industry production process, and carries out to each stock sewage
Homogeneous obtains the stable sewage of performance, is conducive to subsequent treatment process stable operation.
The top in Fenton oxidation pond 2 is equipped with Fenton reagent dispensing kit 6, and top is equipped with cloth liquid in Fenton oxidation pond 2
Device 7, liquid distributor 7 are equipped with multiple spray heads, and liquid distributor 7 is connected to by pipeline with Fenton reagent dispensing kit 6；Fenton oxidation
It is coaxially provided with water distribution tube 8 at the lower section of liquid distributor 7 in pond 2, multiple water distributing pores 9 are offered in water distribution tube 8；Water distribution tube 8
Bottom end is equipped with the water inlet pipe 10 being connected to homogeneous pond 1, and water inlet pipe 10 is equipped with high-pressure pump 11；The top in Fenton oxidation pond 2 is also
Equipped with circulation pipe 12, circulation pipe 12 is connected to water inlet pipe 10, and elevator pump 13 is additionally provided on circulation pipe 12.
Fenton reagent is by H2O2And Fe2+The very strong reagent of a kind of oxidability mixed, oxidation mechanism master
If (general pH < 3.5) in acid condition, utilize Fe2+As H2O2Catalyst, generating has very Strong oxdiative electrically and anti-
The very high hydroxyl radical free radical of activity is answered, hydroxyl radical free radical generates organic free radical with hardly degraded organic substance in aqueous solution, makes it
Structure is destroyed, final oxygenolysis.The utility model is provided by Fenton reagent dispensing kit 6 required for Fenton reaction
Reagent H2O2And acid solution, make H2O2With the Fe in waste water2+It reacts in acid condition, in addition, waste water acidity is stronger, Neng Gouwei
Fenton reaction provides suitable pH.PH detector 23 is additionally provided in Fenton oxidation pond 2, for instructing user by Fenton
PH value in oxidation pond 2 is adjusted to 3.5 or so, is conducive to the efficient progress of oxidation reaction.
In order to be uniformly mixed waste water and Fenton reagent in Fenton oxidation pond 2, the utility model is in Fenton oxidation
Top is equipped with liquid distributor 7 in pond 2, while being coaxially provided with water distribution tube at the lower section of liquid distributor 7 also in Fenton oxidation pond 2
8, Fenton reagent is sprayed downwards by liquid distributor 7, and waste water passes through multiple water distributing pores 9 that high-pressure pump 11 is opened up from water distribution tube 8
It sprays, Fenton reagent and waste water relative flow, contact area is big, is swift in response.Simultaneously as water distribution tube 8 is placed in Fenton
In oxidation pond 2, waste water is dissipated from water distributing pore 9 four and is sprayed, and has good fluid effect.
The top in Fenton oxidation pond 2 is additionally provided with circulation pipe 12, and circulation pipe 12 is connected to water inlet pipe 10, on circulation pipe 12 also
Equipped with elevator pump 13.Circulation pipe 12 can pump to the reaction solution in Fenton oxidation pond 2 from the upper end in Fenton oxidation pond 2
Raw water in water inlet pipe 10 and in water inlet pipe 10 enters Fenton oxidation pond 2 together, can either accelerate in Fenton oxidation pond 2
The flowing of waste water, avoids dead angle, is uniformly mixed itself and Fenton reagent, while can also extend waste water in Fenton oxidation pond 2
The interior residence time improves treatment effeciency.
After Fenton oxidation reaction, the Fe in waste water2+Ion is oxidized to Fe3+Ion contains Fe3+The waste water of ion into
Enter flocculation tank 3 and carries out flocculation sedimentation to remove SS and heavy metal ion.The first agitating device is equipped in flocculation tank 3
14, the top of flocculation tank 3 is equipped with quick lime dispensing kit 15 and flocculant dispensing kit 16, quick lime dispensing kit 15 and flocculant
Dispensing kit 16 is connected to by pipeline with flocculation tank 3.
Quick lime is added in flocculation tank 3 by quick lime dispensing kit 15, makes wastewater pH 6-8, with this condition,
Fe3+With good flocculating effect, flocculation mechanism mainly utilizes Fe3+The polynuclear complex pair generated in hydrolytic process
The strong adsorption of colloidal sol in sewage promotes particles agglomerate by cohering, building bridge, be crosslinked etc. and generates flocculation, reduces waste water
Turbidity, coloration remove a variety of polymer substances, organic matter, certain heavy metal poisons and radioactive substance etc., can also remove
Phosphorus, sulphur etc..Herein, quick lime is added, on the one hand reaction is promoted to carry out, has on the other hand neutralized the acid in acid waste water.
It should be noted that the top of flocculation tank 3 is equipped with flocculant dispensing kit 16, when heavy metal ions in wastewater is dense
Spend higher, to generate in Fenton oxidation pond 2 Fe3+When it being insufficient to allow all to flocculate, it can be added in flocculant dispensing kit 16
Flocculant and Fe3+It is used cooperatively come heavy metal ion of flocculating.
PH detector 23 is additionally provided on the inner wall of flocculation tank 3, pH detector 23 being capable of real-time detection flocculation reaction
The pH value of waste water in pond 3 provides foundation for addition soda acid amount.
It neutralizes and is equipped with the second agitating device 17 in conditioning tank 4, the lower section for neutralizing conditioning tank 4 is equipped with carbon dioxide air accumulator
18, carbon dioxide air accumulator 18 is connected to by pipeline with conditioning tank 4 is neutralized.Carbon dioxide, which enters, can generate carbonic acid, carbon in waste water
Acid can neutralize the excessive alkali generated in waste water by quick lime.Also, on the one hand carbon dioxide can neutralize alkali, on the other hand
The conductivity for handling water will not will not be caused to increase, be conducive to the reuse for handling water to other anion are brought in processing water.
It neutralizes and is additionally provided with pH detector 23 on the inner wall of conditioning tank 4, pH detector 23 in real-time detection and can be adjusted
The pH value of waste water in pond 4 provides foundation for addition amount of carbon dioxide.
Upper end is equipped with water distributor 19 in multi-medium filtering tower 5, and water distributor 19 is equipped with multiple spray heads, water distributor 19 and more
The back with water inlet line of media filtration tower 5 is connected to；It is set gradually from top to bottom at the lower section of water distributor 19 in multi-medium filtering tower 5
There are quartz sand filtration layer 20, activated carbon filter layer 21 and Medical stone filtering layer 22.The partial size of quartz sand is 15-30mm, can
The sediment to get off that will flocculate in solidliquid mixture after flocculation reaction is filtered retention；It is filled in activated carbon filter layer 21
Granular active carbon, the partial size of granular active carbon are 5-10mm, can be by the suspended matter not being flocculated in raw water, colloid substances
Matter further filters retention；Medical stone is filled in Medical stone filtering layer 22, the partial size of medical stone is 1-2mm, can be to waste water
In the substances such as bacterium, pathogenic microorganism retained, purify water quality further.
In the utility model, disclosed above is only specific embodiment of the utility model, and still, the utility model is implemented
Example is not limited to this, and the changes that any person skilled in the art can think of should all fall into the protection scope of the utility model.
Claims (6)
1. a kind of processing system of wastewater of steel industry reuse, which is characterized in that including the homogeneous pond successively contacted by pipeline
(1), Fenton oxidation pond (2), flocculation tank (3), neutralization conditioning tank (4) and multi-medium filtering tower (5)；
The top of the Fenton oxidation pond (2) is equipped with Fenton reagent dispensing kit (6), top in the Fenton oxidation pond (2)
End is equipped with liquid distributor (7), and the liquid distributor (7) is connected to by pipeline with the Fenton reagent dispensing kit (6)；The Fenton
It is coaxially provided with water distribution tube (8), is offered on the water distribution tube (8) more at the lower section of the liquid distributor (7) in oxidation pond (2)
A water distributing pore (9)；The bottom end of the water distribution tube (8) is equipped with the water inlet pipe (10) being connected to the homogeneous pond (1), the water inlet pipe
(10) high-pressure pump (11) are equipped with；
It is additionally provided with circulation pipe (12) above the Fenton oxidation pond (2), the circulation pipe (12) and the water inlet pipe (10)
It is connected to, is additionally provided with elevator pump (13) on the circulation pipe (12)；
The first agitating device (14) are equipped in the flocculation tank (3), the top of the flocculation tank (3) is equipped with quick lime
Dispensing kit (15) and flocculant dispensing kit (16), the quick lime dispensing kit (15) and the flocculant dispensing kit (16) pass through
Pipeline is connected to the flocculation tank (3)；
The second agitating device (17) are equipped in the neutralization conditioning tank (4), the lower section for neutralizing conditioning tank (4) is equipped with titanium dioxide
Carbon air accumulator (18), the carbon dioxide air accumulator (18) are connected to by pipeline with the neutralization conditioning tank (4)；
The interior upper end of the multi-medium filtering tower (5) is equipped with water distributor (19), the water distributor (19) and the multi-medium filtering tower
(5) back with water inlet line connection；It is located at the lower section of the water distributor (19) in the multi-medium filtering tower (5) from top to bottom successively
It is provided with quartz sand filtration layer (20), activated carbon filter layer (21) and Medical stone filtering layer (22).
2. the processing system of wastewater of steel industry reuse according to claim 1, which is characterized in that the Fenton oxidation
Pond (2) is interior, the flocculation tank (3) is interior and the neutralization conditioning tank (4) is interior is equipped with pH detector (23).
3. the processing system of wastewater of steel industry reuse according to claim 1, which is characterized in that the liquid distributor (7)
Multiple spray heads are equipped on the upper and described water distributor (19).
4. the processing system of wastewater of steel industry reuse according to claim 1, which is characterized in that the quartz sand filtration
Quartz sand is filled in layer (20), the partial size of the quartz sand is 15-30mm.
5. the processing system of wastewater of steel industry reuse according to claim 1, which is characterized in that the active carbon filtering
Granular active carbon is filled in layer (21), the partial size of the granular active carbon is 5-10mm.
6. the processing system of wastewater of steel industry reuse according to claim 1, which is characterized in that the Medical stone filtering
Layer (22) is filled with medical stone, and the partial size of the medical stone is 1-2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820605857.XU CN208250053U (en) | 2018-04-25 | 2018-04-25 | A kind of processing system of wastewater of steel industry reuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820605857.XU CN208250053U (en) | 2018-04-25 | 2018-04-25 | A kind of processing system of wastewater of steel industry reuse |
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| Publication Number | Publication Date |
|---|---|
| CN208250053U true CN208250053U (en) | 2018-12-18 |
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ID=64638217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820605857.XU Expired - Fee Related CN208250053U (en) | 2018-04-25 | 2018-04-25 | A kind of processing system of wastewater of steel industry reuse |
Country Status (1)
| Country | Link |
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| CN (1) | CN208250053U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422951A (en) * | 2019-07-10 | 2019-11-08 | 南京博约环境科技有限公司 | A kind of ammonia nitrogen in high density wastewater from chemical industry strengthening and processing device |
| CN111170513A (en) * | 2020-02-22 | 2020-05-19 | 何亚婷 | Modularized integrated process method for alloying milling wastewater treatment |
-
2018
- 2018-04-25 CN CN201820605857.XU patent/CN208250053U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422951A (en) * | 2019-07-10 | 2019-11-08 | 南京博约环境科技有限公司 | A kind of ammonia nitrogen in high density wastewater from chemical industry strengthening and processing device |
| CN111170513A (en) * | 2020-02-22 | 2020-05-19 | 何亚婷 | Modularized integrated process method for alloying milling wastewater treatment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181218 Termination date: 20190425 |
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| CF01 | Termination of patent right due to non-payment of annual fee |