CN211255616U - Utilize carrier filler improvement AO system to combine sewage treatment system of biological filter - Google Patents
Utilize carrier filler improvement AO system to combine sewage treatment system of biological filter Download PDFInfo
- Publication number
- CN211255616U CN211255616U CN201921770485.7U CN201921770485U CN211255616U CN 211255616 U CN211255616 U CN 211255616U CN 201921770485 U CN201921770485 U CN 201921770485U CN 211255616 U CN211255616 U CN 211255616U
- Authority
- CN
- China
- Prior art keywords
- tank
- aerobic
- carrier
- communicated
- biological filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model discloses a sewage treatment system combining a carrier filler improved AO system with a biological filter, which comprises an adjusting tank, an anoxic tank, an aerobic nitrification tank, a sedimentation tank and an autotrophic denitrification biological filter; the input end of the anoxic tank is connected with the output end of the regulating tank, and a stirrer and a biological filler carrier are arranged in the anoxic tank; the input end of the aerobic nitrification tank is connected with the output end of the anoxic tank, and PVA filler is arranged in the aerobic nitrification tank; the sewage treatment device is characterized in that the adjusting tank, the anoxic tank, the aerobic nitrification tank, the sedimentation tank and the autotrophic denitrification biological filter tank are arranged, the stirrer and the biological filler carrier are arranged in the anoxic tank in a matching manner, the PVA filler is arranged in the aerobic nitrification tank, and the autotrophic denitrification biological carrier is arranged in the autotrophic denitrification biological filter tank, so that the sewage is efficiently treated, the operation cost is low, the sludge production is small, and the device is worthy of popularization and use.
Description
Technical Field
The utility model relates to a sewage treatment field technique especially indicates an utilize carrier filler improvement AO system to combine sewage treatment system in biological filter.
Background
Sewage treatment refers to a process of purifying sewage to meet the water quality requirement for draining a certain water body or reusing the sewage. Sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like. The sewage treatment is generally divided into production sewage treatment and domestic sewage treatment. The production sewage comprises industrial sewage, agricultural sewage, medical sewage and the like, and the domestic sewage is sewage generated in daily life, and refers to complex mixtures of various forms of inorganic matters and organic matters, and comprises the following steps: floating and suspended large and small solid particles; ② colloidal and gelatinous dispersions; ③ pure solution.
At present, biochemical processes are generally adopted for sewage treatment, the traditional AO process is low in denitrification efficiency, especially the total nitrogen is easy to exceed the standard, the excess sludge is large, the investment cost of membrane materials in the traditional MBR biochemical process is high, the backwashing frequency consumption and operation cost of chemical agents with serious membrane pollution are high, and the like. Therefore, there is a need to develop a solution to the above problems.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a sewage treatment system using a carrier filler to improve an AO system and a biofilter, which can effectively solve the problems of low efficiency and high cost of the existing sewage treatment.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a sewage treatment system combining a carrier filler improved AO system with a biological filter comprises a regulating tank, an anoxic tank, an aerobic nitrification tank, a sedimentation tank and an autotrophic denitrification biological filter; the input end of the anoxic tank is connected with the output end of the regulating tank, and a stirrer and a biological filler carrier are arranged in the anoxic tank; the input end of the aerobic nitrification tank is connected with the output end of the anoxic tank, and PVA filler is arranged in the aerobic nitrification tank; the input end of the sedimentation tank is connected with the output end of the aerobic nitrification tank; the input end of the autotrophic denitrification biological filter is communicated with the liquid outlet end of the sedimentation tank, and autotrophic denitrification biological carriers are arranged in the autotrophic denitrification biological filter.
Preferably, the input of oxygen deficiency pond is located the top side of oxygen deficiency pond, and the output of equalizing basin is located the bottom side of equalizing basin, and the input of oxygen deficiency pond is connected with the output of equalizing basin through first intake pump.
Preferably, the aerobic nitrification tank comprises a first aerobic section, a second aerobic section and a third aerobic section which are sequentially arranged, the bottom end of the first aerobic section is communicated with the bottom end of the anoxic tank, the top end of the first aerobic section is communicated with the top end of the second aerobic tank, the bottom end of the second aerobic section is communicated with the bottom end of the third aerobic section, the bottom end of the sedimentation tank is communicated with the third aerobic section, and the bottom end of the third aerobic section is communicated with the anoxic tank through a liquid reflux pump.
Preferably, the sedimentation tank is an inclined plate sedimentation tank, and the bottom of the sedimentation tank is communicated with the anoxic tank through a sludge reflux pump.
Preferably, the liquid outlet end of the sedimentation tank is communicated with the bottom end of the autotrophic denitrification biological filter through a second water inlet pump.
Preferably, the top end and the bottom end of the autotrophic denitrification biological filter are communicated through an internal circulating water pump.
Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme:
the sewage treatment device is characterized in that the adjusting tank, the anoxic tank, the aerobic nitrification tank, the sedimentation tank and the autotrophic denitrification biological filter tank are arranged, the stirrer and the biological filler carrier are arranged in the anoxic tank in a matching manner, the PVA filler is arranged in the aerobic nitrification tank, and the autotrophic denitrification biological carrier is arranged in the autotrophic denitrification biological filter tank, so that the sewage is efficiently treated, the operation cost is low, the sludge production is small, and the device is worthy of popularization and use.
To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;
fig. 2 is a partial perspective view of the preferred embodiment of the present invention.
The attached drawings indicate the following:
10. regulating reservoir 20, oxygen deficiency pool
30. An aerobic nitrification tank 31 and a first aerobic section
32. A second aerobic section 33 and a third aerobic section
40. 50 sedimentation tank, autotrophic denitrification biological filter
61. Stirrer 62 and biological filler carrier
63. PVA filler 64 and autotrophic denitrification biological carrier
71. First water inlet pump 72 and liquid reflux pump
73. Sludge return pump 74 and second water inlet pump
75. Internal circulation water pump
Detailed Description
Referring to fig. 1 and 2, a detailed structure of a preferred embodiment of the present invention is shown, which includes a regulating tank 10, an anoxic tank 20, an aerobic nitrification tank 30, a sedimentation tank 40, and an autotrophic denitrification biological filter 50.
The input end of the anoxic tank 20 is connected with the output end of the regulating tank 10, and a stirrer 61 and a biological filler carrier 62 are arranged in the anoxic tank 20; in this embodiment, the input end of the anoxic tank 20 is located on the top side of the anoxic tank 20, the output end of the regulating tank 10 is located on the bottom side of the regulating tank 10, and the input end of the anoxic tank 20 is connected with the output end of the regulating tank 10 through the first water inlet pump 71; moreover, the biological filler carrier 62 is a QCL-BPVA biological filler carrier which carries high concentration microorganisms (bacteria), maximizes BOD removal rate, produces high efficiency heterotrophic denitrification, hydrolyzes suspended pollutants such as starch, fiber, carbohydrate and the like and soluble organic matters in the sewage into organic acid by heterotrophic bacteria in anoxic sections to decompose macromolecular organic matters into micromolecular organic matters and convert insoluble organic matters into soluble organic matters, and can improve the aerobic treatment of the sewage when the products of the anoxic hydrolysis enter the aerobic nitrification tank 30Biodegradability and oxygen efficiency; in the anoxic zone, heterotrophic bacteria ammoniate contaminants such as protein and fat (N in the organic chain or amino groups in amino acids) to release ammonia (NH)3、NH4 +）。
The input end of the aerobic nitrification tank 30 is connected with the output end of the anoxic tank 20, and PVA filler 63 is arranged in the aerobic nitrification tank 30; the input end of the sedimentation tank 40 is connected with the output end of the aerobic nitrification tank 30; in this embodiment, the aerobic nitrification tank 30 includes a first aerobic section 31, a second aerobic section 32 and a third aerobic section 33 which are sequentially arranged, the bottom end of the first aerobic section 31 is communicated with the bottom end of the anoxic tank 20, the top end of the first aerobic section 31 is communicated with the top end of the second aerobic tank 32, the bottom end of the second aerobic section 32 is communicated with the bottom end of the third aerobic section 33, the bottom end of the sedimentation tank 40 is communicated with the third aerobic section 33, and the bottom end of the third aerobic section 33 is communicated with the anoxic tank 20 through a liquid reflux pump 72. Moreover, the sedimentation tank 40 is an inclined plate sedimentation tank, and the bottom of the sedimentation tank 40 is communicated with the anoxic tank 20 through a sludge reflux pump 73; the PVA filler 63 adopts QCL-BPVA biological carrier, special efficient nitrobacteria are added, the concentration of the nitrobacteria can be effectively increased, and NH is subjected to nitrification of autotrophic bacteria under the condition of sufficient oxygen supply3-N（NH4To NO by oxidation of ++)3The return liquid of the O3 section is returned to the A1 pool, and NO is generated by the denitrification of the heterotrophic bacteria under the anoxic condition3Reduction to molecular nitrogen (N2) to complete the ecological cycle of C, N, O and realize NH harmless treatment of sewage3The removal rate of-N is maximized, and the ammonia nitrogen is quickly nitrified into nitrate nitrogen, so that the purpose of short-cut nitrification is achieved.
The input end of the autotrophic denitrification biological filter 50 is communicated with the liquid outlet end of the sedimentation tank 40, and an autotrophic denitrification biological carrier 64 is arranged in the autotrophic denitrification biological filter 50. In this embodiment, the liquid outlet end of the sedimentation tank 40 is communicated with the bottom end of the autotrophic denitrification biological filter 50 through a second water inlet pump 74, and the top end and the bottom end of the autotrophic denitrification biological filter 50 are communicated through an internal circulating water pump 75. The nitrate nitrogen which passes through the sedimentation tank 40 and does not reach the standard enters the autotrophic denitrification biological filter 50, modified sulfur filler (SODP autotrophic denitrification biological carrier) is added into the autotrophic denitrification biological filter 50, the C/N ratio of water is unbalanced, the carbon source is seriously insufficient, the carbon source needs to be added again by the anaerobic denitrification, the C/N ratio is difficult to be balanced, the running cost can be raised due to excessive carbon source, the COD of the effluent can exceed the standard seriously, the COD is unbalanced due to too low carbon source, the denitrification efficiency is poor, and the condition is very suitable for being degraded by the autotrophic denitrification biological filter. The SODP is an excellent biological carrier, has a strong specific surface area and a pore volume adsorption structure, and can load thiobacillus denitrificans. The denitrobacillus is an obligate autotrophic denitrifying bacterium, has the property of removing nitrate nitrogen, and further degrades the total nitrogen in the polluted water body. At present, research on heterotrophic denitrification processes is more, but for repairing water bodies with low carbon/nitrogen ratios such as nitrate-polluted underground water, heterotrophic denitrification needs an additional organic carbon source as an electron donor, but the additional organic carbon source has the problems of high cost, subsequent organic pollution and the like. The SODP loaded thiobacillus denitrificans degrades nitrate nitrogen in total nitrogen, any carbon source adding substance is not needed to be supplemented, the domestication process is simple and easy to operate, the culture can be performed only by adding traditional aerobic biochemical excess sludge, the removal of nitrate nitrogen is more than 99%, and the SODP loaded thiobacillus denitrificans also has good degradation effect on total nitrogen and SS.
Detailed description the working principle of the present embodiment is as follows:
during work, sewage enters the regulating tank 10 for pH regulation, then enters the anoxic tank 20 under the action of the first water inlet pump 71, heterotrophic bacteria in the sewage in the anoxic tank 20 ammoniate pollutants such as protein and fat (N on an organic chain or amino in amino acid) to free ammonia (NH 3 and NH4 +); then, the sewage enters an aerobic nitrification tank 30, and NH is nitrified by autotrophic bacteria under the condition of sufficient oxygen supply3-N（NH4To NO by oxidation of ++)3Then, the sewage enters the sedimentation tank 40 for sedimentation, the output liquid enters the autotrophic denitrification biological filter 50 through the second water inlet pump 74, the sludge flows back to the anoxic tank 20 through the sludge return pump 73, and the sewage is degraded and filtered in the autotrophic denitrification biological filter 50 and then is discharged after reaching the standard.
The utility model discloses a design key is: the sewage treatment device is characterized in that the adjusting tank, the anoxic tank, the aerobic nitrification tank, the sedimentation tank and the autotrophic denitrification biological filter tank are arranged, the stirrer and the biological filler carrier are arranged in the anoxic tank in a matching manner, the PVA filler is arranged in the aerobic nitrification tank, and the autotrophic denitrification biological carrier is arranged in the autotrophic denitrification biological filter tank, so that the sewage is efficiently treated, the operation cost is low, the sludge production is small, and the device is worthy of popularization and use.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (6)
1. A sewage treatment system combining a carrier filler improved AO system with a biological filter is characterized in that: comprises a regulating tank, an anoxic tank, an aerobic nitrification tank, a sedimentation tank and an autotrophic denitrification biological filter; the input end of the anoxic tank is connected with the output end of the regulating tank, and a stirrer and a biological filler carrier are arranged in the anoxic tank; the input end of the aerobic nitrification tank is connected with the output end of the anoxic tank, and PVA filler is arranged in the aerobic nitrification tank; the input end of the sedimentation tank is connected with the output end of the aerobic nitrification tank; the input end of the autotrophic denitrification biological filter is communicated with the liquid outlet end of the sedimentation tank, and autotrophic denitrification biological carriers are arranged in the autotrophic denitrification biological filter.
2. A sewage treatment system utilizing a carrier-packed modified AO system in combination with a biofilter according to claim 1, wherein: the input of oxygen deficiency pond is located the top side of oxygen deficiency pond, and the output of equalizing basin is located the bottom side of equalizing basin, and the input of oxygen deficiency pond is connected with the output of equalizing basin through first intake pump.
3. A sewage treatment system utilizing a carrier-packed modified AO system in combination with a biofilter according to claim 1, wherein: the aerobic nitrification tank comprises a first aerobic section, a second aerobic section and a third aerobic section which are sequentially arranged, the bottom end of the first aerobic section is communicated with the bottom end of the anoxic tank, the top end of the first aerobic section is communicated with the top end of the second aerobic tank, the bottom end of the second aerobic section is communicated with the bottom end of the third aerobic section, the bottom end of the sedimentation tank is communicated with the third aerobic section, and the bottom end of the third aerobic section is communicated with the anoxic tank through a liquid reflux pump.
4. A sewage treatment system utilizing a carrier-packed modified AO system in combination with a biofilter according to claim 1, wherein: the sedimentation tank is an inclined plate sedimentation tank, and the bottom of the sedimentation tank is communicated with the anoxic tank through a sludge reflux pump.
5. A sewage treatment system utilizing a carrier-packed modified AO system in combination with a biofilter according to claim 1, wherein: and the liquid outlet end of the sedimentation tank is communicated with the bottom end of the autotrophic denitrification biological filter through a second water inlet pump.
6. A sewage treatment system utilizing a carrier-packed modified AO system in combination with a biofilter according to claim 1, wherein: the top end and the bottom end of the autotrophic denitrification biological filter are communicated through an internal circulating water pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921770485.7U CN211255616U (en) | 2019-10-22 | 2019-10-22 | Utilize carrier filler improvement AO system to combine sewage treatment system of biological filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921770485.7U CN211255616U (en) | 2019-10-22 | 2019-10-22 | Utilize carrier filler improvement AO system to combine sewage treatment system of biological filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211255616U true CN211255616U (en) | 2020-08-14 |
Family
ID=71985968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921770485.7U Active CN211255616U (en) | 2019-10-22 | 2019-10-22 | Utilize carrier filler improvement AO system to combine sewage treatment system of biological filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211255616U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113233601A (en) * | 2021-06-23 | 2021-08-10 | 北控水务(中国)投资有限公司 | Denitrification sewage treatment system and sewage treatment system |
-
2019
- 2019-10-22 CN CN201921770485.7U patent/CN211255616U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113233601A (en) * | 2021-06-23 | 2021-08-10 | 北控水务(中国)投资有限公司 | Denitrification sewage treatment system and sewage treatment system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101591065A (en) | Sewage double-biomembrane deep treatment technology | |
| CN205170617U (en) | Combined type treatment of domestic sewage integration equipment | |
| CN102153232B (en) | Side-flow circulation BAF (Biological Aerated Filter) intensified dephosphorization system and method for treating urban sewage with the dephosphorization system | |
| CN110395851B (en) | High-altitude town sewage treatment method based on nitrogen and phosphorus capture and completely autotrophic nitrogen removal | |
| CN106430845A (en) | Kitchen garbage wastewater treatment apparatus | |
| WO2019169610A1 (en) | Method for upgrading and expanding sewage biological treatment process | |
| CN206553350U (en) | A kind of two-stage manual controlled infusion of intensified denitrification and dephosphorization | |
| CN102786184A (en) | Two-stage A / O-MBR denitrification and dephosphorization apparatus | |
| CN106396282A (en) | Kitchen waste paste anaerobic fermentation wastewater treatment device | |
| CN207877509U (en) | A kind of device of the intensified denitrification and dephosphorization of low-carbon-source sewage | |
| CN202729946U (en) | Two-stage anoxic/oxic (A/O)-membrane biological reactor (MBR) nitrogen and phosphorus removal device | |
| CN113023872A (en) | Device and method for realizing domestic sewage denitrification by synchronous shortcut nitrification-denitrification-anaerobic ammonia oxidation coupling denitrification | |
| CN104310710B (en) | A kind of coal chemical wastewater treating technique | |
| CN110642478A (en) | Coupled treatment system and method for coking phenol-cyanogen wastewater by biochemical method and physicochemical method | |
| CN204474505U (en) | A kind of percolate Sewage treatment systems | |
| CN211255616U (en) | Utilize carrier filler improvement AO system to combine sewage treatment system of biological filter | |
| CN201614333U (en) | Decentralized sewage treatment device | |
| CN209338220U (en) | A kind of sewage disposal system based on anaerobism-AO- combined artificial wetland | |
| CN105984991B (en) | A kind of sewerage advanced treatment process | |
| CN102923859B (en) | Process for treating high-concentration printing-dyeing desizing waste water and aerobic excess sludge | |
| CN203402963U (en) | High-concentration ammonia-nitrogen wastewater treatment device | |
| CN113415884A (en) | Device and method for simultaneously treating domestic sewage and nitrate wastewater for nitrogen and phosphorus removal by fully utilizing internal carbon source | |
| CN202754840U (en) | Biological aerated filters in two-stage serial connection | |
| CN111217489A (en) | Sewage purification equipment for strengthening ammonia nitrogen removal capability of village and town sewage | |
| CN206437994U (en) | A kind of kitchen garbage, waste-water processing unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |