CN202038956U - Sludge treatment device - Google Patents
Sludge treatment device Download PDFInfo
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- CN202038956U CN202038956U CN201120125250XU CN201120125250U CN202038956U CN 202038956 U CN202038956 U CN 202038956U CN 201120125250X U CN201120125250X U CN 201120125250XU CN 201120125250 U CN201120125250 U CN 201120125250U CN 202038956 U CN202038956 U CN 202038956U
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- sludge
- tower
- ozone
- ozone reaction
- mud
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- Treatment Of Sludge (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model discloses a sludge treatment device, which comprises a gravity concentration sludge tank, a muddy water separator, a lift pump, a wet-type oxidation tower, an air compressor, an ozone generator, a Venturi device, an ozone reaction tower and an activated sludge tank. The muddy water separator is respectively connected with the gravity concentration sludge tank and a sewage treatment system. The lift pump is arranged between the muddy water separator and the wet-type oxidation tower, and the wet-type oxidation tower is connected with the air compressor. The wet-type oxidation tower is in butt joint with the ozone reaction tower, the ozone generator is connected with the Venturi device, and the Venturi device is connected with the ozone reaction tower which is connected with the activated sludge tank. Sludge treated by the sludge treatment device is rich in nitrogen, phosphorus and potassium, can be sent to a fertilizer plant to be added into humic acid stock solution to produce fertilizers, remarkably improve quality of fruits and vegetable crops and enable melon and fruit yields to increase. Treatment cost can be greatly reduced, water ratio of dewatered sludge is less than 10%, total solid is reduced by 50%, and pathogenic bacteria is inactivated. The sludge treatment device has wide application in harmless, reduced and recycled treatment of the sludge of cities and towns.
Description
Technical field
The utility model belongs to sludge treatment device technical field in the environmental protection field, be specifically related to a kind of be used for that complex wastewater treating processess such as chemical engineering sewage, stench sewage produce can biochemistry and the digestion process equipment of the organic sludge of bio-refractory.
Background technology
At present, activated sludge process is because advantage such as cost is low, power consumption is few remains the sewage water treatment method that generally uses.Because in this method process for the treatment of waste water, the mud bed material that is generated comprises organism such as carbon, nitrogen, phosphorus, sulphur, and these organism can form excessive organism thus as a new bacterial cells synthetic part, need constantly to remove, to keep stable state mud balance.The landfill burning sludge may cause secondary pollution for soil and air, and the cost energy consumption is bigger.
The main drawback of existing sludge treatment device and technology thereof has: 1, anaerobic digestion techniques processing cost height, fail to reclaim available resources; 2, the volatile solid content in the primary sludge is lower, the inorganic content height, and organic content is little, therefore burns the cost height.The a large amount of mud of activated sludge process by-product, its amount is about 0.5～1.5% of sewage quantity, but the processing costs of mud but accounts for 40～60% of sewage work's overall running cost.The sludge treatment means of traditional cities Sewage Plant mainly be through concentrating, landfill after the anaerobic digestion.The mud organic substance rate of decomposition has only 25～45%, and effect is undesirable.Solid phase is handled generally to be needed to use polymkeric substance, and sludge dewatering can reach 15～25% solids content, accounts for 20～60% of total operation expense.With whizzer or other equipment for separating liquid from solid report arranged also.Also comprise mechanical stirrer and dynamic mixing pump ozonize pattern for mud.Ozone can generate hydroxy radical qiao, and oxidisability is strong, can destroy biological cell wall, oxidation intracellular matter, comprises that protein, fat, carbohydrate etc. are the small molecules inorganics.The ozone reaction system mainly comprises continuous stirred tank reactor (CSTR), plug flow reactor and batch reactor.Big, the easy back-mixing of plug flow reactor treatment capacity, batch reactor is fit to small scale wastewater treatment.This shows that development novel energy-conserving sludge treatment device and technology are extremely urgent.
The utility model content
The technical problems to be solved in the utility model provides a kind of employing wet oxidation, under the pressurized conditions of heating, utilizes airborne dioxygen oxidation macromolecule organic to be CO
2/ N
2Or oxynitrides, can make protein, fats portion in the mud resolve into small molecules, to improve the sludge treatment equipment of mud biodegradability.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of sludge treatment equipment, comprise that several are used to store the gravity thickened sludge pond of mud, it is characterized in that: also comprise separator for mud and water, lift pump, wet oxidation tower, air compressor machine, ozone oxidation system and activated sludge tank, the separator for mud and water inlet end connects gravity thickened sludge pond, and the separator for mud and water exit end connects Sewage treatment systems; Lift pump is located between separator for mud and water and the wet oxidation tower, and the wet oxidation tower is connected with air compressor machine; The ozone oxidation system is made of ozonizer, Venturi and ozone reaction tower, and the wet oxidation tower docks with the ozone reaction tower, and ozonizer is connected with several Venturis, and Venturi connects the ozone reaction tower; The ozone reaction tower connects activated sludge tank.
Preferably, also be provided with the pipeline that returns Venturi from the ozone reaction tower between ozone reaction tower and the Venturi, the remaining ozone of reaction can enter the ozone reaction tower once more and react.
Preferably, the outlet of ozone reaction tower is provided with the pipeline that returns the wet oxidation tower, and the mud after peroxidation can enter the wet oxidation tower once more and do cyclic oxidation.
Preferably, the wet oxidation tower is provided with the pipeline that returns lift pump.
The treatment process of this sludge treatment equipment is, carries out gravity in gravity thickened sludge pond and concentrates, and the mud after gravity concentrates enters separator for mud and water, and supernatant liquor enters Sewage treatment systems; Mud is then sent in the wet oxidation tower by lift pump, and the stirrer in the wet oxidation tower stirs mud, and the while air compressor machine is sent into the air after the preheating, 1～2 hour residence time; By electrical heating method heating, it is that 150～350 ℃, pressure are the condition of 1～8Mpa, and kept intermittent reaction 60～80 minutes that the wet oxidation tower reaches temperature; Send into the ozone reaction tower after finishing, the ozone gas that ozonizer produces injects the ozone reaction tower by Venturi, and the ozone dosage is 0.10kgO
3/ kg mlss (mass ratio), in 10～15 minutes reaction times, reaction back residual ozone gas returns the ozone reaction tower by Venturi once more; Mud is disposed to activated sludge tank or returns wet oxidation tower cyclic oxidation once more behind the ozone deep oxidation, deliver to fertilizer plant after the drying and make composite fertilizer.
The preheated air temperature that charges into before the oxidation is 135～165 ℃.
By the mud that the utility model was handled, be rich in nitrogen phosphorus potassium, can deliver to fertilizer plant's adding humic acids stoste and make fertilizer, through using proof, can significantly improve the quality of fruit, vegetable crop, make the melon and fruit increasing both production and income, improve soil quality; Can reduce the heat treated expense of mud significantly, obtain dewatering the mud water ratio below 10%, total solids reduces 50%; Pathogenic bacteria is inactivated, and has more by force in, minimizing innoxious at city sludge, the recycling treatment and uses.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure, 1 is gravity thickened sludge pond, and 2 is separator for mud and water, and 3 is Sewage treatment systems, and 4 is lift pump, and 5 are the wet oxidation tower, and 6 is air compressor machine, and 7 is the ozone reaction tower, and 8 is Venturi, and 9 is activated sludge tank, and 10 is ozonizer, and 11 is fertilizer plant.
Embodiment
In the present embodiment, with reference to Fig. 1, described sludge treatment equipment, comprise the gravity thickened sludge pond 1, separator for mud and water 2, lift pump 4, wet oxidation tower 5, air compressor machine 6, ozone oxidation system and the activated sludge tank 9 that are used to store mud, separator for mud and water 2 inlet ends connect gravity thickened sludge pond 1, and separator for mud and water 2 exit end connect Sewage treatment systems 3; Lift pump 4 is located between separator for mud and water 2 and the wet oxidation tower 5, and wet oxidation tower 5 is connected with air compressor machine 6; The ozone oxidation system is made of ozonizer 10, Venturi 8 and ozone reaction tower 7, and wet oxidation tower 5 docks with ozone reaction tower 7, and ozonizer 10 is connected with as if two Venturis 8, and Venturi 8 connects ozone reaction towers 7; Ozone reaction tower 7 connects activated sludge tank 9.
Also be provided with the pipeline that returns Venturi 8 from ozone reaction tower 7 between ozone reaction tower 7 and the Venturi 8, the remaining ozone of reaction can enter ozone reaction tower 7 once more and react.
The outlet of ozone reaction tower 7 is provided with the pipeline that returns wet oxidation tower 5, and the mud after peroxidation can enter wet oxidation tower 5 once more and do cyclic oxidation.Wet oxidation tower 5 is provided with the pipeline that returns lift pump 4.
Below the utility model is described in detail, the above only is the preferred embodiment of the utility model, when not limiting the utility model practical range, be allly to do impartial change and modify, all should still belong in the utility model covering scope according to the application's scope.
Claims (4)
1. sludge treatment equipment, comprise that several are used to store the gravity thickened sludge pond of mud, it is characterized in that: also comprise separator for mud and water, lift pump, wet oxidation tower, air compressor machine, ozone oxidation system and activated sludge tank, the separator for mud and water inlet end connects gravity thickened sludge pond, and the separator for mud and water exit end connects Sewage treatment systems; Lift pump is located between separator for mud and water and the wet oxidation tower, and the wet oxidation tower is connected with air compressor machine; The ozone oxidation system is made of ozonizer, Venturi and ozone reaction tower, and the wet oxidation tower docks with the ozone reaction tower, and ozonizer is connected with several Venturis, and Venturi connects the ozone reaction tower; The ozone reaction tower connects activated sludge tank.
2. sludge treatment equipment according to claim 1 is characterized in that: also be provided with the pipeline that returns Venturi from the ozone reaction tower between ozone reaction tower and the Venturi.
3. sludge treatment equipment according to claim 1 is characterized in that: the outlet of ozone reaction tower is provided with the pipeline that returns the wet oxidation tower.
4. sludge treatment equipment according to claim 1 is characterized in that: the wet oxidation tower is provided with the pipeline that returns lift pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120125250XU CN202038956U (en) | 2011-04-13 | 2011-04-13 | Sludge treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120125250XU CN202038956U (en) | 2011-04-13 | 2011-04-13 | Sludge treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202038956U true CN202038956U (en) | 2011-11-16 |
Family
ID=44966413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120125250XU Expired - Fee Related CN202038956U (en) | 2011-04-13 | 2011-04-13 | Sludge treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202038956U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112299598A (en) * | 2020-10-13 | 2021-02-02 | 安徽国星生物化学有限公司 | Treatment method of heterocyclic wastewater containing tar bipyridine |
-
2011
- 2011-04-13 CN CN201120125250XU patent/CN202038956U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112299598A (en) * | 2020-10-13 | 2021-02-02 | 安徽国星生物化学有限公司 | Treatment method of heterocyclic wastewater containing tar bipyridine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20120413 |