CN216550013U - Comprehensive wastewater treatment system for experimental building - Google Patents
Comprehensive wastewater treatment system for experimental building Download PDFInfo
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- CN216550013U CN216550013U CN202122317890.7U CN202122317890U CN216550013U CN 216550013 U CN216550013 U CN 216550013U CN 202122317890 U CN202122317890 U CN 202122317890U CN 216550013 U CN216550013 U CN 216550013U
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Abstract
The utility model discloses a comprehensive wastewater treatment system for an experimental building, which comprises an adjusting tank, a hydrolysis acidification tank, an aerobic tank, an MBR (membrane bioreactor) membrane tank, a Fenton reaction tank, a pH adjusting tank, a flocculation tank and a sedimentation tank which are connected in sequence. The comprehensive waste water regulating tank of the experimental building is used for regulating the water quality and the water quantity of experimental waste water, then the waste water enters the hydrolysis acidification tank for biochemical treatment, then the waste water enters the aerobic tank for aerobic treatment, non-soluble organic matters in the waste water are converted into soluble organic matters, then the waste water is filtered by the MBR membrane tank and then enters the Fenton reaction tank for treatment, organic matters which are difficult to be biochemically degraded are decomposed and pathogens in the waste water are removed, then the pH value of the waste water is regulated in the pH regulating tank, the waste water sequentially enters the flocculation tank and the sedimentation tank for flocculation and sedimentation, and the supernatant which reaches the standard is discharged from a water outlet at the upper part of the sedimentation tank. The utility model effectively removes heavy metals and organic matters in the comprehensive wastewater of the experimental building, so that the drainage reaches the discharge standard.
Description
Technical Field
The utility model relates to a sewage treatment system, in particular to a comprehensive wastewater treatment system for a laboratory building.
Background
The comprehensive wastewater of the experimental building is mainly from laboratory scientific research experiments and production cleaning, and due to the fact that the experimental building experiments are multiple, the chemical components are complex and changeable, the types of pollutants in the wastewater are multiple, the pollutants often contain pollutants which are strictly controlled by China, such as acid, alkali, heavy metal ions of mercury, cadmium, chromium and the like, and also contain organic matters and pathogens of polycyclic aromatic hydrocarbon, halogenated hydrocarbon, toluene, benzene and the like, and the pollutants are directly discharged without being treated, so that the serious influence is caused on the surrounding ecological environment. In the past, most laboratory wastewater is classified, or treated by self or sent to relevant qualification units for treatment, but the wastewater needs to be discharged after reaching the standard no matter how treated. The laboratory wastewater is generally divided into acid-base wastewater, inorganic wastewater, organic wastewater, heavy metal wastewater and the like, and if the wastewater is treated by chemical means, the treatment process is complex and difficult to determine, and the incomplete treatment is very likely to happen; if a biochemical system is arranged for treatment, the treatment effect of the biochemical system may not be ideal or even may be broken down completely due to the problems of large water quality and water quantity change, strong discontinuity and the like of laboratories. In addition, it is difficult to completely distinguish various types of wastewater.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a comprehensive wastewater treatment system for an experimental building, which can effectively remove heavy metals and organic matters in the comprehensive wastewater of the experimental building and ensure that the discharged water reaches the discharge standard.
The utility model adopts the following technical scheme to realize the purpose: the utility model provides an experiment building integrated wastewater treatment system, is including equalizing basin, hydrolysis-acidification pond, good oxygen pond, MBR membrane cisterna, fenton reaction tank, pH equalizing basin, flocculation basin and the sedimentation tank that connects gradually. The comprehensive wastewater adjusting tank of the experimental building is used for adjusting the water quality and the water quantity of experimental wastewater, then the wastewater enters the hydrolysis acidification tank for biochemical treatment, then enters the aerobic tank for aerobic treatment, non-soluble organic matters in the wastewater are converted into soluble organic matters, then the dissolved organic matters are filtered by the MBR membrane tank and then enter the Fenton reaction tank for treatment, the organic matters which are difficult to be biochemically degraded are decomposed and pathogens in the wastewater are removed, then the pH value of the wastewater is adjusted in the pH adjusting tank, the wastewater sequentially enters the flocculation tank and the sedimentation tank for flocculation and sedimentation, and the supernatant which reaches the standard is discharged from a water outlet at the upper part of the sedimentation tank.
In the utility model, the aerobic tank is provided with a first dosing device for dosing a metal ion capturing agent.
In the utility model, an aeration device is arranged in the aerobic tank.
In the utility model, the MBR membrane tank is provided with an aeration device.
The utility model also comprises an aeration fan, and aeration devices in the aerobic tank and the MBR membrane tank are respectively connected with the aeration fan.
The sludge treatment device comprises a sludge tank and a screw stacking machine which are sequentially connected, wherein the MBR membrane tank and the sedimentation tank are respectively connected with the sludge tank, the sludge tank is connected with the screw stacking machine, and the screw stacking machine is connected with the adjusting tank and returns water removed from sludge to the adjusting tank.
Compared with the prior art, the utility model has the following beneficial effects:
(1) the comprehensive wastewater treatment system for the experimental building provided by the utility model aims at the fact that various types of wastewater of the whole experimental building are comprehensively treated together, including wastewater generated by a laboratory and activities of various personnel and the like, so that the change of water quality and water quantity is slowed down to a certain extent, the treatment system is not collapsed, and meanwhile, the comprehensive wastewater can be treated more thoroughly by the selected process, and the cost is lower.
(2) The utility model provides a comprehensive wastewater treatment system for an experimental building, which is mainly formed by sequentially connecting an adjusting tank, a hydrolysis acidification tank, an aerobic tank, an MBR (membrane bioreactor) membrane tank, a Fenton reaction tank, a pH adjusting tank, a flocculation tank and a sedimentation tank. The comprehensive wastewater of the experimental building has complex and variable components, contains acid, alkali, heavy metal ions such as mercury, cadmium, chromium and the like, and also contains organic matters such as polycyclic aromatic hydrocarbon, halogenated hydrocarbon, toluene, benzene and the like and pathogens, and the wastewater is pretreated in an adjusting tank to realize the adjustment of water quality and water quantity; primarily treating organic pollutants by adopting a hydrolysis acidification tank, improving the biodegradability of sewage and ensuring that the dissolved oxygen of the wastewater is less than or equal to 0.2 mg/L; an aerobic tank is adopted to further treat organic pollutants and capture heavy metal ions; an MBR membrane tank is adopted to realize high-efficiency separation, and the activated sludge containing the captured heavy metals is efficiently intercepted for subsequent treatment; a Fenton reaction tank is adopted to further treat refractory organic matters and eliminate pathogens; adjusting the acidic water quality of the previous reaction tank back to neutral by adopting a pH adjusting tank; and flocculating and settling the suspended matters by adopting a flocculation tank and a sedimentation tank, and discharging the supernatant after reaching the standard.
(3) The aerobic tank is internally provided with the dosing device for dosing the metal ion catching agent, the metal ion catching agent is added during aerobic treatment, and the metal ion catching agent and metal ions in wastewater fully react to generate water-insoluble flocculent precipitate, so that the sludge is intercepted by the ultrafiltration membrane in the subsequent MBR membrane tank, the treatment effect is better than that of the process of independently adopting precipitation and sand filtration, and the investment is saved.
Drawings
FIG. 1 is a schematic view of a comprehensive wastewater treatment system of a laboratory building;
in the figure: 1. the system comprises a regulating tank, 2, a hydrolysis acidification tank, 3, an aerobic tank, 4, an MBR membrane tank, 5, a Fenton reaction tank, 6, a pH regulating tank, 7, a flocculation tank, 8, a sedimentation tank, 9, a sludge tank, 10, a screw stacking machine, 31, a first dosing device, 15, a second dosing device and 34, an aeration fan.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It should be noted that the embodiment described below is only one embodiment of the present invention, and not all embodiments. Based on the embodiments of the present invention, those skilled in the art can make any changes and modifications to the technical solution of the present invention without creative efforts, and the technical solution belongs to the protection scope of the present invention.
The comprehensive wastewater treatment system of the experimental building shown in fig. 1 is mainly formed by connecting an adjusting tank 1, a hydrolysis acidification tank 2, an aerobic tank 3, an MBR (membrane bioreactor) membrane tank 4, a Fenton reaction tank 5, a pH adjusting tank 6, a flocculation tank 7 and a sedimentation tank 8 which are connected in sequence. The aerobic tank 3 is provided with a first chemical adding device 31 for adding a metal ion capturing agent, and an aeration device is arranged in the tank. An aeration device is arranged on the MBR membrane tank 4. AerobicThe aeration devices in the tank 3 and the MBR membrane tank 4 are respectively connected with an aeration fan 34. The Fenton reaction tank 5 is provided with a second chemical adding device 15 for adding acid and FeSO4And H2O2And the like.
In the embodiment, a sludge treatment device is further arranged, and comprises a sludge tank 9 and a screw stacking machine 10 which are connected in sequence. The MBR membrane tank 4 and the sedimentation tank 8 are respectively connected with a sludge tank 9, the sludge tank 9 is connected with a snail stacking machine 10, the snail stacking machine 10 is connected with the adjusting tank 1, the snail stacking machine 10 extrudes sludge for dehydration, water is returned to the adjusting tank 1 for continuous treatment, and dehydrated sludge is discharged.
After the comprehensive wastewater of the experimental building is used for adjusting the water quality and the water quantity of the experimental wastewater in the adjusting tank 1, the comprehensive wastewater enters the hydrolysis acidification tank 2 for biochemical treatment to improve the biodegradability of the wastewater, wherein the dissolved oxygen in the tank is less than or equal to 0.2mg/L, then enters the aerobic tank 3 for aerobic treatment, converts the non-soluble organic matters into soluble organic matters, adds a metal ion catching agent to react with metal ions to generate flocculent precipitates, then is filtered by the MBR membrane tank 4, enters the Fenton reaction tank 5 for treatment, and adds acid and FeSO in a certain proportion4And H2O2And organic matters which are difficult to be biochemically degraded are decomposed, pathogens in the wastewater are removed, then alkali is added into a pH adjusting tank 6 to adjust the pH value of the wastewater to be 8, then the wastewater enters a flocculation tank 7 to be flocculated by adding a flocculating agent, and finally the wastewater enters a sedimentation tank 8 to be subjected to mud-water separation. Sludge in the MBR membrane tank 4 and the sedimentation tank 8 is conveyed to a sludge tank 9, water is extruded by a screw stacking machine 10, the water is returned to the regulating tank 1 for treatment, and the dehydrated sludge is conveyed to a qualification unit for treatment.
Claims (4)
1. A comprehensive wastewater treatment system for an experimental building is characterized by comprising an adjusting tank (1), a hydrolysis acidification tank (2), an aerobic tank (3), an MBR (membrane bioreactor) tank (4), a Fenton reaction tank (5), a pH adjusting tank (6), a flocculation tank (7) and a sedimentation tank (8) which are connected in sequence; the aerobic tank (3) is provided with a first dosing device (31) for dosing a metal ion capturing agent; an aeration device is arranged in the aerobic tank (3).
2. The experimental building integrated wastewater treatment system according to claim 1, wherein the MBR membrane tank (4) is provided with an aeration device.
3. The integrated wastewater treatment system for experimental buildings according to claim 2, further comprising an aeration fan (34) to which the aeration devices in the aerobic tank (3) and the MBR membrane tank (4) are respectively connected.
4. The experimental building comprehensive wastewater treatment system according to claim 1, further comprising a sludge treatment device, wherein the sludge treatment device comprises a sludge tank (9) and a screw stacking machine (10) which are connected in sequence, the MBR membrane tank (4) and the sedimentation tank (8) are respectively connected with the sludge tank (9), the sludge tank (9) is connected with the screw stacking machine (10), and the screw stacking machine (10) is connected with the adjusting tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122317890.7U CN216550013U (en) | 2021-09-24 | 2021-09-24 | Comprehensive wastewater treatment system for experimental building |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122317890.7U CN216550013U (en) | 2021-09-24 | 2021-09-24 | Comprehensive wastewater treatment system for experimental building |
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| CN216550013U true CN216550013U (en) | 2022-05-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116177775A (en) * | 2022-11-30 | 2023-05-30 | 安徽华星化工有限公司 | MBR (Membrane biological reactor) membrane and oxidation reduction tower combined wastewater treatment process |
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2021
- 2021-09-24 CN CN202122317890.7U patent/CN216550013U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116177775A (en) * | 2022-11-30 | 2023-05-30 | 安徽华星化工有限公司 | MBR (Membrane biological reactor) membrane and oxidation reduction tower combined wastewater treatment process |
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| GR01 | Patent grant | ||
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Address after: Room 325, 327, 3rd floor, block 22, Shunlian Machinery City, 18 Xingye Road, Guanglong Industrial Park, Chihua neighborhood committee, Chencun Town, Shunde District, Foshan City, Guangdong Province Patentee after: Guangdong Shunkong Zihua Technology Co.,Ltd. Address before: Room 325, 327, 3rd floor, block 22, Shunlian Machinery City, 18 Xingye Road, Guanglong Industrial Park, Chihua neighborhood committee, Chencun Town, Shunde District, Foshan City, Guangdong Province Patentee before: Guangdong Zihua Technology Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Comprehensive Wastewater Treatment System for Experimental Buildings Effective date of registration: 20230926 Granted publication date: 20220517 Pledgee: Bank of China Limited by Share Ltd. Shunde branch Pledgor: Guangdong Shunkong Zihua Technology Co.,Ltd. Registration number: Y2023980058751 |