CN210367341U - Sewage treatment system - Google Patents
Sewage treatment system Download PDFInfo
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- CN210367341U CN210367341U CN201921022207.3U CN201921022207U CN210367341U CN 210367341 U CN210367341 U CN 210367341U CN 201921022207 U CN201921022207 U CN 201921022207U CN 210367341 U CN210367341 U CN 210367341U
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- 239000010865 sewage Substances 0.000 title claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000010802 sludge Substances 0.000 claims abstract description 32
- 238000004062 sedimentation Methods 0.000 claims abstract description 26
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000000571 coke Substances 0.000 claims abstract description 15
- 238000001179 sorption measurement Methods 0.000 claims abstract description 13
- 239000004155 Chlorine dioxide Substances 0.000 claims abstract description 9
- 235000019398 chlorine dioxide Nutrition 0.000 claims abstract description 9
- 230000020477 pH reduction Effects 0.000 claims abstract description 9
- 230000001112 coagulating effect Effects 0.000 claims abstract description 8
- 230000007062 hydrolysis Effects 0.000 claims abstract description 8
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 7
- 238000005188 flotation Methods 0.000 claims abstract description 6
- 238000004065 wastewater treatment Methods 0.000 claims description 9
- 238000004094 preconcentration Methods 0.000 claims description 8
- 238000000265 homogenisation Methods 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 claims 2
- 230000007613 environmental effect Effects 0.000 abstract description 6
- 239000002352 surface water Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 6
- 229910052698 phosphorus Inorganic materials 0.000 description 6
- 239000011574 phosphorus Substances 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 2
- 208000034699 Vitreous floaters Diseases 0.000 description 2
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 2
- 239000000701 coagulant Substances 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 239000002920 hazardous waste Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000003209 petroleum derivative Substances 0.000 description 2
- 125000002467 phosphate group Chemical class [H]OP(=O)(O[H])O[*] 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model provides a sewage treatment system, which belongs to the technical field of sewage treatment and comprises a sewage treatment module and a sludge treatment module; the sewage treatment module comprises a water inlet, a pretreatment system, a hydrolysis acidification adjusting tank, an A2/O reaction tank, a secondary sedimentation tank, a coagulating sedimentation tank, an air flotation tank, an active coke adsorption tank and a chlorine dioxide disinfection tank which are sequentially connected in series. The sewage treatment system has low sewage treatment cost and good treatment effect, and the effluent quality reaches the standards of three water areas, namely the environmental quality standard of surface water (GB 3838-.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, concretely relates to sewage treatment system.
Background
Sewage treatment (waste water treatment) refers to a process of purifying sewage to meet the water quality requirement for discharge into a certain water body or reuse. 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, and is increasingly used in daily life of common people.
At present, sewage treatment work is mainly performed by professional sewage treatment plants, and the sewage treatment mainly utilizes physical, chemical and biological methods to purify sewage, reduce pollution and reach the discharge standard.
At present, the discharge standard of urban domestic sewage is mainly the first-class B standard in the discharge standard of pollutants for urban sewage treatment plants (GB 18918-2002); discharging the effluent after reaching the first-grade B standard; but with the increase of the environmental importance degree of the modern society and the increase of the water demand; the standard for urban sewage discharge is gradually improved.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a sewage treatment system capable of improving the quality of the effluent from sewage treatment to meet the standards of the three waters of the "surface water environmental quality standard (GB 3838-.
The utility model provides a sewage treatment system, which comprises a sewage treatment module and a sludge treatment module; the sewage treatment module comprises a water inlet, a pretreatment system, a hydrolysis acidification adjusting tank, an A2/O reaction tank, a secondary sedimentation tank, a coagulating sedimentation tank, an air flotation tank, an active coke adsorption tank and a chlorine dioxide disinfection tank which are sequentially connected in series.
Preferably, the sludge treatment module is connected with the secondary sedimentation tank.
Preferably, the sludge treatment module comprises a sludge homogenizing tank and a sludge dewatering room which are sequentially connected in series.
Preferably, the sludge treatment module further comprises a sludge pre-concentration tank connected in series with the secondary sedimentation tank before the sewage homogenizing tank.
Preferably, the pretreatment system comprises a sewage lifting pump, a coarse grid, a rotational flow grit chamber and a fine grid.
Preferably, the water inlet is provided with a water inlet metering well.
Preferably, the treatment scale of the sewage treatment system is 4000-6000 m3/d。
Preferably, the A2/O pool comprises an anaerobic pool, an anoxic pool and an aerobic pool.
The utility model has the advantages that: the utility model provides a sewage treatment system through adopting hydrolytic acidification + A2/O + secondary sedimentation tank + coagulating sedimentation tank + air supporting + active burnt absorbent technology, handles sewage, and the treatment cost is low, and sewage treatment is effectual, and play water quality of water can reach three kinds of waters standards of "surface water environmental quality standard (GB 3838 supple materials 2002)'s angle, and it is recoverable, reuse to go out water.
Drawings
Fig. 1 is a schematic structural view of a sewage treatment system in example 1, in which 1 is a water inlet metering well, 2 is a lift pump house and a coarse grid, 3 is a cyclone grit chamber and a fine grid, 4 is a hydrolysis acidification adjusting tank, 5 is an a2/O reaction tank, 6 is a secondary sedimentation tank, 7 is a coagulation sedimentation tank, 8 is an air flotation tank, 9 is an active coke adsorption tank, and 10 is a chlorine dioxide disinfection tank; 11 is a sludge homogenizing pool and 12 is a sludge dewatering room.
Detailed Description
The utility model provides a sewage treatment system, which comprises a sewage treatment module and a sludge treatment module; the sewage treatment module comprises a water inlet, a pretreatment system, a hydrolysis acidification adjusting tank, an A2/O reaction tank, a secondary sedimentation tank, a coagulating sedimentation tank, an air flotation tank, an active coke adsorption tank and a chlorine dioxide disinfection tank which are sequentially connected in series.
In the specific implementation process of the utility model, the structure of the sewage treatment system is preferably as shown in the attached figure 1, and the sewage treatment module comprises a water inlet metering well 1, a lift pump house, a coarse grid room 2, a rotational flow grit chamber, a fine grid room 3, a hydrolysis acidification adjusting tank 4, an A2/O reaction tank 5, a secondary sedimentation tank 6, a coagulation sedimentation tank 7, an air flotation tank 8, an active coke adsorption tank 9 and a chlorine dioxide disinfection tank 10 which are sequentially connected in series; the sludge treatment module is connected with the secondary sedimentation tank and comprises a sludge pre-concentration tank, a sludge homogenizing tank 11 and a sludge dewatering room 12 which are connected in series.
The utility model discloses to above-mentioned measurement well of intaking, between elevator pump room and thick grid, whirl grit chamber and thin grid between, hydrolysis-acidification equalizing basin, A2O reaction tank, two heavy ponds, coagulating sedimentation tank, air supporting pond, active coke adsorption tank, chlorine dioxide disinfection pond, mud preconcentration pond, mud homogeneity pond and sludge dewatering between concrete structure do not have special requirement, adopt the field conventional above-mentioned structure can.
In the specific implementation process of the utility model, sewage automatically flows into a water inlet well and a coarse grid of a sewage treatment plant through an off-plant sewage pipeline, and enters a water inlet pump room after larger floaters in the sewage are removed through the coarse grid; the water is lifted by a water inlet pump and then flows into a fine grid and a rotational flow grit chamber to remove small floating objects and sand grains, the sand grains are separated by a spiral separator and then are transported outwards, and overflow liquid automatically flows into a water collecting well. The effluent of the grit chamber automatically flows into a hydrolysis acidification tank, sewage is hydrolyzed under an anaerobic state, pollutants which are difficult to degrade are decomposed, and the biochemical ratio of the sewage is increased. Then enters an anaerobic tank, an anoxic tank and an aerobic tank, and releases phosphorus and simultaneously carries out denitrification by using organic matters in the nitrate nitrogen in the water under the alternate states of anaerobic and aerobic. Then the sewage enters a secondary sedimentation tank, an aerobic tank and a secondary sedimentation tank, a part of residual sludge is discharged according to the growth condition of the sludge, the supernatant automatically flows into a coagulating sedimentation tank, and suspended particles, nitrogen, phosphorus and fluorine in the water can be deeply removed by an air floatation technology, so that conditions are created for a subsequent adsorption technology, the regeneration period of the activated coke is prolonged, and the total phosphorus concentration of the effluent is ensured to be below 0.10 mg/L. The active coke adsorption technology can remove soluble pollutants, ensure that the effluent reaches the standard of three types of water on the ground, and effectively reduce the treatment cost. In addition, because the heat value of the active coke is higher, the active coke can still be used as a recovered energy source after secondary regeneration. Tail water after adsorption and filtration enters a chlorine dioxide sterilizing tank, and the tail water is discharged to extremely river along Qin river after being sterilized. And sludge generated in the sewage treatment project enters a sludge pre-concentration tank for pre-concentration, then enters a homogenization tank, is dehydrated by a concentration and dehydration integrated machine, and is directly transported outside for hazardous waste disposal.
The present invention provides a sewage treatment system, which is described in detail with reference to the following examples, but they should not be construed as limiting the scope of the present invention.
Example 1
The structure of the sewage treatment system is shown in the attached figure 1.
A sewage treatment process: sewage automatically flows into a water inlet well and a coarse grating of a sewage treatment plant through an off-plant sewage pipeline, and enters a water inlet pump room after larger floaters in the sewage are removed through the coarse grating; the water is lifted by a water inlet pump and then flows into a fine grid and a rotational flow grit chamber to remove small floating objects and sand grains, the sand grains are separated by a spiral separator and then are transported outwards, and overflow liquid automatically flows into a water collecting well. The effluent of the grit chamber automatically flows into a hydrolysis acidification tank, sewage is hydrolyzed under an anaerobic state, pollutants which are difficult to degrade are decomposed, and the biochemical ratio of the sewage is increased. Then enters an anaerobic tank, an anoxic tank and an aerobic tank, and releases phosphorus and simultaneously carries out denitrification by using organic matters in the nitrate nitrogen in the water under the alternate states of anaerobic and aerobic. Then the sewage enters a secondary sedimentation tank, an aerobic tank and a secondary sedimentation tank, a part of residual sludge is discharged according to the growth condition of the sludge, the supernatant automatically flows into a coagulating sedimentation tank, and suspended particles, nitrogen, phosphorus and fluorine in the water can be deeply removed by an air floatation technology, so that conditions are created for a subsequent adsorption technology, the regeneration period of the activated coke is prolonged, and the total phosphorus concentration of the effluent is ensured to be below 0.10 mg/L. The active coke adsorption technology can remove soluble pollutants, ensure that the effluent reaches the standard of three types of water on the ground, and effectively reduce the treatment cost. In addition, because the heat value of the active coke is higher, the active coke can still be used as a recovered energy source after secondary regeneration. Tail water after adsorption and filtration enters a chlorine dioxide sterilizing tank, and the tail water is discharged to extremely river along Qin river after being sterilized. And sludge generated in the sewage treatment project enters a sludge pre-concentration tank for pre-concentration, then enters a homogenization tank, is dehydrated by a concentration and dehydration integrated machine, and is directly transported outside for hazardous waste disposal.
The water quality standard of the inlet water is shown in the table 1.
TABLE 1 Water quality Standard of influent Water
| Index of water quality | Quality of inlet water |
| CODcr | ≤500mg/L |
| BOD5 | ≤180mg/L |
| SS | ≤300mg/L |
| NH3-N | ≤70mg/L |
| Total nitrogen | ≤80mg/L |
| Phosphate salts | ≤5.0mg/L |
| Petroleum products | ≤15mg/ |
| PH | |
| 6～9 |
The quality of the outlet water is implemented according to the standards of three types of water bodies, namely the environmental quality standard of surface water (GB 3838-2002). See table 2 for details.
TABLE 2 effluent quality of sewage treatment
| Index of water quality | Quality of effluent water |
| CODcr | ≤20mg/L |
| BOD5 | ≤4.0mg/L |
| SS | ≤20mg/L |
| NH3-N | ≤1.0mg/L |
| Total nitrogen | ≤1.0mg/L |
| Phosphate salts | ≤0.1mg/L |
| Petroleum products | ≤0.05mg/ |
| PH | |
| 6~9 |
The cost calculations are shown in tables 3 and 4.
TABLE 3 Total cost of wastewater treatment calculation
| Scale of treatment | 5000 | m3/d | Total construction cost | 2340.71 | Ten thousand yuan |
| Power of power station | 184.3 | KW | Price of electricity | 0.87 | Degree/yuan |
| CLO2Amount of |
5 | mg/l | Price of disinfectant | 0.38 | Ten thousand yuan/ton |
| Coagulant dosage | 15 | mg/L | Price of coagulant | 0.61 | Ten thousand yuan/ton |
| PAM Polybenzolene hydroamines | 0.08％ | Price of PAM | 2.6 | Ten thousand yuan/ton | |
| Amount of sludge | 1.0 | Ton of | Labour deciding person | 20 | Human being |
| Number of days of operation per year | 365 | Sky | Staff wage welfare | 4500 | Yuan/month |
| Factory simultaneous electricity utilization ratio | 20％ | Efficiency of water pump | 65％ |
TABLE 4 cost calculation for sewage treatment per unit volume
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A sewage treatment system is characterized by comprising a sewage treatment module and a sludge treatment module; the sewage treatment module comprises a water inlet, a pretreatment system, a hydrolysis acidification adjusting tank, an A2/O reaction tank, a secondary sedimentation tank, a coagulating sedimentation tank, an air flotation tank, an active coke adsorption tank and a chlorine dioxide disinfection tank which are sequentially connected in series.
2. The wastewater treatment system of claim 1, wherein the sludge treatment module is connected to a secondary sedimentation tank.
3. The sewage treatment system of claim 2, wherein the sludge treatment module comprises a sludge homogenizing tank and a sludge dewatering room which are connected in series in sequence.
4. The wastewater treatment system of claim 3, wherein the sludge treatment module further comprises a sludge pre-concentration tank connected in series with the secondary sedimentation tank before the wastewater homogenization tank.
5. The wastewater treatment system of claim 1, wherein the pretreatment system comprises a wastewater lift pump, a coarse grid chamber, a cyclone grit chamber, and a fine grid chamber.
6. The wastewater treatment system of claim 1, wherein the water inlet is provided with a water intake metering well.
7. The wastewater treatment system according to claim 1, wherein the wastewater treatment system has a treatment scale of 4000-6000 m3/d。
8. The wastewater treatment system of claim 1, wherein the a2/O basin comprises an anaerobic basin, an anoxic basin, and an aerobic basin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921022207.3U CN210367341U (en) | 2019-07-03 | 2019-07-03 | Sewage treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921022207.3U CN210367341U (en) | 2019-07-03 | 2019-07-03 | Sewage treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210367341U true CN210367341U (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921022207.3U Expired - Fee Related CN210367341U (en) | 2019-07-03 | 2019-07-03 | Sewage treatment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022087966A1 (en) * | 2020-10-27 | 2022-05-05 | 中清信益环境(南京)有限公司 | Biotoxicity early warning and monitoring system and method thereof |
-
2019
- 2019-07-03 CN CN201921022207.3U patent/CN210367341U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022087966A1 (en) * | 2020-10-27 | 2022-05-05 | 中清信益环境(南京)有限公司 | Biotoxicity early warning and monitoring system and method thereof |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210721 Address after: 300000 building-4 and 10-707, Minghai center, south of Chongqing Road and west of Hulunbuir Road, pilot free trade zone of Tianjin Binhai New Area (Dongjiang Bonded Port Area) (trusteeship No. 3044 of Binhai New Area Branch of Tianjin Dongjiang business service business secretary service Co., Ltd.) Patentee after: Tianjin Free Trade Yudu energy and Environmental Protection Technology Co.,Ltd. Address before: Room 1214, 12 / F, section e, No. 1515, Zhongshan North 2nd Road, Hongkou District, Shanghai 200086 Patentee before: Shanghai Jinghong Environmental Technology Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200421 |