CN111362526A - Device for in-situ purification of domestic sewage by circulating fluidization technology and application - Google Patents
Device for in-situ purification of domestic sewage by circulating fluidization technology and application Download PDFInfo
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- CN111362526A CN111362526A CN202010299010.5A CN202010299010A CN111362526A CN 111362526 A CN111362526 A CN 111362526A CN 202010299010 A CN202010299010 A CN 202010299010A CN 111362526 A CN111362526 A CN 111362526A
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- 239000010865 sewage Substances 0.000 title claims abstract description 71
- 238000000746 purification Methods 0.000 title claims abstract description 19
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 18
- 238000005516 engineering process Methods 0.000 title claims description 20
- 238000005243 fluidization Methods 0.000 title claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 69
- 230000001105 regulatory effect Effects 0.000 claims abstract description 15
- 239000008213 purified water Substances 0.000 claims abstract description 7
- 239000000945 filler Substances 0.000 claims description 20
- 230000014759 maintenance of location Effects 0.000 claims description 16
- 239000012535 impurity Substances 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 244000005700 microbiome Species 0.000 claims description 8
- 241001148471 unidentified anaerobic bacterium Species 0.000 claims description 8
- 238000001556 precipitation Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 229920001661 Chitosan Polymers 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 4
- 229920005610 lignin Polymers 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000003344 environmental pollutant Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 231100000719 pollutant Toxicity 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 238000006731 degradation reaction Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 4
- 241000255925 Diptera Species 0.000 description 2
- 241001148470 aerobic bacillus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 244000144977 poultry Species 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The device is an integrated structure and consists of a water inlet, a regulating tank, a facultative anaerobic tank, an aerobic tank, a water purifying tank and a water outlet, and the purification treatment of the domestic sewage is realized through the facultative anaerobic treatment and the aerobic treatment. The device can purify the domestic sewage with BOD not higher than 250mg/l, TN not higher than 70mg/l and SS not higher than 170mg/l, and the BOD, TN not higher than 20mg/l and SS not higher than 15mg/l of the purified water body. The invention has the advantages that: the in-situ domestic sewage purification device has the characteristics of small occupied area, high treatment efficiency, low energy consumption, low cost, high degradation speed, easiness in operation, safety and reliability. The energy consumption of the device is effectively reduced through the overflow design; the equipment is dispersedly used for each farmer, the cost for laying sewage pipelines in rural areas can be effectively reduced, and the cost is reduced.
Description
Technical Field
The invention relates to a domestic sewage in-situ treatment technology, in particular to a domestic sewage in-situ purification device by a circulating fluidization technology and application thereof.
Background
With the development of the times and the improvement of the living standard of people, the pace of city construction is accelerated, the increasing consumption demand of people and the desire of people for beautiful cities are stronger and stronger, however, compared with the high-speed development of the cities, the construction of rural infrastructures is relatively laggard, especially the construction difficulty of rural sewage pipe networks is high, the investment cost is high, the rural sewage is discharged at will, the management is difficult, mosquitoes and flies are bred while the environment is seriously polluted, the foul gas is generated, and the personal health is threatened. Rural sewage treatment is an important component of the sewage treatment industry in China, only sewage generated in the production and living processes is treated in relative cities and towns, and the rural sewage treatment is accompanied with environmental improvement and protection contents such as rural drinking water source area protection, rural domestic garbage treatment, livestock and poultry breeding waste resource utilization, pollution prevention and control and the like. However, the treatment of the sewage in rural areas in China is influenced by various factors such as economy, policy, living habits and the like for a long time, the treatment rate of the sewage in the rural areas in China is as high as 91.9 percent, the treatment rate of the sewage in the county and city reaches 85.2 percent, and the treatment rate of the sewage in the rural areas in China is only 11 percent by 2015. Therefore, how to treat rural sewage efficiently according to local conditions becomes one of the primary tasks of the current social development.
At present, the rural sewage treatment mostly adopts centralized treatment, and the technical method comprises the following steps: an artificial wetland treatment system and an underground soil infiltration and purification system based on the natural ecological principle, an aerobic biological treatment system and an anaerobic biological treatment system based on biological treatment. However, in rural areas with dispersed residents and complex landforms, the cost of infrastructure construction (pipe network construction) in the early stage of centralized treatment is extremely high, and the treatment of rural sewage treatment is severely restricted. Therefore, in order to solve the problem in the existing remote rural sewage treatment and disposal process, the invention develops a small in-situ sewage microbial treatment technology based on a fluidized bed technology. This device is through intaking in succession, under centimeter level load microorganism's spherical carrier fluidization, continuous treatment domestic sewage effectively improves sewage treatment efficiency, reduces domestic sewage treatment cost. This device is integrated device includes: a water inlet, a regulating tank, a facultative anaerobic reaction tank, an aerobic reaction tank, a disinfection device and a water outlet. The device is provided with a temperature control system, and a series of automatic operations such as temperature control, water inlet, water outlet and the like are realized through PLC program control. The device has the characteristics of simple structure, low cost, large processing capacity, energy conservation, high automation degree, easy operation, safety, reliability and the like.
Disclosure of Invention
The invention aims to overcome the defects of the existing treatment device and provide the device for purifying the domestic sewage in situ by the circulating fluidization technology and the application thereof.
The technical scheme of the invention is as follows:
the device is an integrated structure and consists of a water inlet, a regulating tank, a facultative anaerobic tank, an aerobic tank, a water purifying tank and a water outlet. Sewage enters a settling tank through a water inlet, the settling tank is arranged in an adjusting tank, and the side wall of the adjusting tank is provided with an impurity discharge port for discharging settled impurities out of the device at regular intervals; after impurities are precipitated, the mixture enters a facultative anaerobic tank in an overflow mode, is treated by a filler loaded with facultative anaerobic bacteria and then enters the bottom of an aerobic tank; continuously supplying oxygen to the aerobic tank through a bottom gas distributor in the aerobic tank, and simultaneously maintaining fluidization of the filler loaded with microorganisms, so that the aerobic reaction efficiency is improved; the water body after the aerobic reaction overflows into a clean water tank, and when the load of the water inlet pollutants is overlarge, part of the treated water body is pumped into a return pipe through a submersible pump and enters into a regulating tank; the treated purified water is discharged after being sterilized by an ultraviolet device at the tail part of the water purifying tank.
The application of a circulating fluidized technology in-situ domestic sewage purifying device achieves the purpose of sewage purification by adopting continuous inflow and facultative anaerobic and aerobic treatment, and comprises the following steps:
1) conveying the domestic sewage into a purification device through a pipeline, and starting the device;
2) the sewage flowing into the device is simply precipitated by a precipitation tank and overflows into an adjusting tank, the retention time in the adjusting tank is 6-22h, and the water temperature is maintained at 5-15 ℃;
3) the sewage regulated and controlled by the regulating reservoir overflows into the facultative anaerobic pool from the top, and is treated by filler loaded with facultative anaerobic bacteria and fixed in the facultative anaerobic pool, the retention time is 12-34h, and the water temperature is maintained at 5-15 ℃;
4) the sewage treated by the facultative anaerobic tank enters an aerobic tank from the bottom, and simultaneously air is introduced into the tank from the bottom of the aerobic tank through a gas distributor, so that the filler loaded with aerobic microorganisms forms a fluidized state in the tank, the retention time is 7-20h, and the water temperature is maintained at 5-15 ℃;
5) the water body treated by the aerobic tank overflows into the clean water tank from the top, and then is discharged after being sterilized by an ultraviolet lamp, and the retention time in the clean water tank is 3-12 h.
The BOD, TN and SS of the domestic sewage are not higher than 250mg/l, 70mg/l and 170mg/l respectively.
The filler is a macroporous chitosan @ lignin compound synthesized by an incomplete hydrothermal method.
The invention has the advantages and beneficial effects that:
the in-situ domestic sewage purification device has the characteristics of small occupied area, high treatment efficiency, low energy consumption, low cost, high degradation speed, easiness in operation, safety and reliability. The energy consumption of the device is effectively reduced through the overflow design; the equipment is dispersedly used for each farmer, the cost for laying sewage pipelines in rural areas can be effectively reduced, and the cost is reduced.
Drawings
Fig. 1 is a schematic front view of a processing apparatus.
In the figure: 1. water inlet 2, impurity outlet 3, regulating tank 4 and settling tank
5. Facultative anaerobic pool 6, facultative anaerobic bacteria filler 7, air pump 8 and return pipe
9. Aerobic pool 10, aerobic bacteria filler 11, gas distributor 12 and submersible pump
13. A clean water tank 14, an ultraviolet lamp 15 and a water outlet.
Detailed Description
The present invention is further described in detail by the following embodiments with reference to the drawings, but the technical content described in the embodiments is illustrative and not restrictive, and the scope of the present invention should not be limited thereby.
A device for purifying domestic sewage in situ by a circulating fluidization technology is an integrated structure and comprises a water inlet 1, a regulating tank 3, a facultative anaerobic tank 5, an aerobic tank 9, a water purifying tank 13 and a water outlet 15. Sewage enters a settling tank 4 through a water inlet 1, the settling tank 4 is arranged in an adjusting tank 3, and the side wall of the adjusting tank 3 is provided with an impurity discharge port 2 for discharging settled impurities out of the device at regular intervals; after impurities are precipitated, the mixture enters a facultative anaerobic tank 5 in an overflow mode, is treated by a filler 6 loaded with facultative anaerobic bacteria and then enters the bottom of an aerobic tank 9; continuously supplying oxygen to the aerobic tank through a bottom gas distributor 11 in the aerobic tank, and simultaneously maintaining fluidization of the filler 10 loaded with microorganisms, so that the aerobic reaction efficiency is improved; the water body after the aerobic reaction overflows into a clean water tank 13, and when the load of the water inlet pollutants is overlarge, part of the treated water body is pumped into a return pipe 8 through a submersible pump and enters into an adjusting tank 3; the treated purified water is sterilized by an ultraviolet lamp 14 at the tail part of the purified water tank and then is discharged from a water outlet 15.
In the embodiment, the size of the device for purifying the domestic sewage in situ by the circulating fluidization technology is 2.5m in length, 1.4m in width and 1.8m in height, and the capacity of treating the domestic sewage is 1-2m for carrying out topdressing/d; the device for purifying domestic sewage in situ by the circulating fluidization technology is manufactured by Tianjin Shanghai science and technology development Limited company.
The following examples are the domestic sewage treatment using the above-described circulating fluidized technology in-situ purification apparatus for domestic sewage.
Example 2:
the application of a circulating fluidized technology in-situ domestic sewage purifying device achieves the purpose of sewage purification by adopting continuous inflow and facultative anaerobic and aerobic treatment, and comprises the following steps:
1) conveying the domestic sewage into a purification device through a pipeline, and starting the device;
2) the sewage flowing into the device is simply precipitated by a precipitation tank and overflows into an adjusting tank, the retention time in the adjusting tank is 6 hours, and the water temperature is maintained at 10 ℃;
3) the sewage regulated and controlled by the regulating reservoir overflows into the facultative anaerobic pool from the top, and is treated by filler which is fixed in the facultative anaerobic pool and loaded with facultative anaerobic bacteria, the retention time is 14 hours, and the water temperature is maintained at 10 ℃;
4) the sewage treated by the facultative anaerobic tank enters an aerobic tank from the bottom, and simultaneously air is introduced into the tank from the bottom of the aerobic tank through a gas distributor, so that the filler loaded with aerobic microorganisms forms a fluidized state in the tank, the retention time is 8 hours, and the water temperature is maintained at 10 ℃;
5) the water body treated by the aerobic tank overflows into the clean water tank from the top, and is discharged after being sterilized by an ultraviolet lamp, and the retention time in the clean water tank is 4 hours.
The BOD, TN and SS of the domestic sewage are not higher than 250mg/l, 70mg/l and 170mg/l respectively.
The filler is a macroporous chitosan @ lignin compound synthesized by an incomplete hydrothermal method.
The device and the technology can quickly realize the purification treatment of the rural domestic sewage, and the BOD, TN and SS of the purified water body are not higher than 20mg/l, 20mg/l and 15mg/l respectively.
Example 3:
the application of a circulating fluidized technology in-situ domestic sewage purifying device achieves the purpose of sewage purification by adopting continuous inflow and facultative anaerobic and aerobic treatment, and comprises the following steps:
1) conveying the domestic sewage into a purification device through a pipeline, and starting the device;
2) the sewage flowing into the device is simply precipitated by a precipitation tank and overflows into an adjusting tank, the retention time in the adjusting tank is 20 hours, and the water temperature is maintained at 15 ℃;
3) the sewage regulated and controlled by the regulating reservoir overflows into the facultative anaerobic pool from the top, and is treated by filler which is fixed in the facultative anaerobic pool and loaded with facultative anaerobic bacteria, the retention time is 28 hours, and the water temperature is maintained at 15 ℃;
4) the sewage treated by the facultative anaerobic tank enters an aerobic tank from the bottom, and simultaneously air is introduced into the tank from the bottom of the aerobic tank through a gas distributor, so that the filler loaded with aerobic microorganisms forms a fluidized state in the tank, the retention time is 16h, and the water temperature is maintained at 15 ℃;
5) the water body treated by the aerobic tank overflows into the clean water tank from the top, and is discharged after being sterilized by an ultraviolet lamp, and the retention time in the clean water tank is 8 hours.
The BOD, TN and SS of the domestic sewage are not higher than 250mg/l, 70mg/l and 170mg/l respectively.
The filler is a macroporous chitosan @ lignin compound synthesized by an incomplete hydrothermal method.
The device and the technology can quickly realize the purification treatment of the rural domestic sewage, and the BOD, TN and SS of the purified water body are not higher than 20mg/l, 20mg/l and 15mg/l respectively.
Claims (4)
1. The utility model provides a circulating fluidization technique normal position purifies domestic sewage device which characterized in that: the device is of an integrated structure and consists of a water inlet, an adjusting tank, a facultative anaerobic tank, an aerobic tank, a clean water tank and a water outlet, wherein sewage enters a precipitation tank through the water inlet, the precipitation tank is arranged in the adjusting tank, and the side wall of the adjusting tank is provided with an impurity outlet for discharging precipitated impurities out of the device at regular intervals; after impurities are precipitated, the mixture enters a facultative anaerobic tank in an overflow mode, is treated by a filler loaded with facultative anaerobic bacteria and then enters the bottom of an aerobic tank; continuously supplying oxygen to the aerobic tank through a bottom gas distributor in the aerobic tank, and simultaneously maintaining fluidization of the filler loaded with microorganisms, so that the aerobic reaction efficiency is improved; the water body after the aerobic reaction overflows into a clean water tank, and when the load of the water inlet pollutants is overlarge, part of the treated water body is pumped into a return pipe through a submersible pump and enters into a regulating tank; the treated purified water is discharged after being sterilized by an ultraviolet device at the tail part of the water purifying tank.
2. Use of a device for in situ purification of domestic sewage according to the circulating fluidization technology of claim 1, wherein: the method adopts continuous water inlet and achieves the purpose of sewage purification after facultative anaerobic and aerobic treatment, and comprises the following steps:
1) conveying the domestic sewage into a purification device through a pipeline, and starting the device;
2) the sewage flowing into the device is simply precipitated by a precipitation tank and overflows into an adjusting tank, the retention time in the adjusting tank is 6-22h, and the water temperature is maintained at 5-15 ℃;
3) the sewage regulated and controlled by the regulating reservoir overflows into the facultative anaerobic pool from the top, and is treated by filler loaded with facultative anaerobic bacteria and fixed in the facultative anaerobic pool, the retention time is 12-34h, and the water temperature is maintained at 5-15 ℃;
4) the sewage treated by the facultative anaerobic tank enters an aerobic tank from the bottom, and simultaneously air is introduced into the tank from the bottom of the aerobic tank through a gas distributor, so that the filler loaded with aerobic microorganisms forms a fluidized state in the tank, the retention time is 7-20h, and the water temperature is maintained at 5-15 ℃;
5) the water body treated by the aerobic tank overflows into the clean water tank from the top, and then is discharged after being sterilized by an ultraviolet lamp, and the retention time in the clean water tank is 3-12 h.
3. The application of the device for in-situ purifying domestic sewage by the circulating fluidization technology as claimed in claim 2, is characterized in that: the BOD, TN and SS of the domestic sewage are not higher than 250mg/l, 70mg/l and 170mg/l respectively.
4. The application of the device for in-situ purifying domestic sewage by the circulating fluidization technology as claimed in claim 2, is characterized in that: the filler is a macroporous chitosan @ lignin compound synthesized by an incomplete hydrothermal method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010299010.5A CN111362526A (en) | 2020-04-16 | 2020-04-16 | Device for in-situ purification of domestic sewage by circulating fluidization technology and application |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010299010.5A CN111362526A (en) | 2020-04-16 | 2020-04-16 | Device for in-situ purification of domestic sewage by circulating fluidization technology and application |
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| CN111362526A true CN111362526A (en) | 2020-07-03 |
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| CN202010299010.5A Pending CN111362526A (en) | 2020-04-16 | 2020-04-16 | Device for in-situ purification of domestic sewage by circulating fluidization technology and application |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090272687A1 (en) * | 2006-10-30 | 2009-11-05 | Chiang Ming-Hui | Method of Deep Sewage Treatment without Sludge Discharge and Device Therefor |
| CN105645699A (en) * | 2016-04-07 | 2016-06-08 | 成都赋阳技术开发有限公司 | Sewage purification treatment device |
| CN107445415A (en) * | 2017-09-28 | 2017-12-08 | 中冶华天工程技术有限公司 | A kind of rural domestic sewage treatment system |
| CN109052870A (en) * | 2018-10-12 | 2018-12-21 | 海南大和成环境工程有限公司 | domestic sewage processing system and method |
| CN208327714U (en) * | 2018-04-17 | 2019-01-04 | 云南嘉科环保设备有限公司 | Rural domestic sewage treatment integrated apparatus |
| CN210048631U (en) * | 2019-06-11 | 2020-02-11 | 江苏省科建成套设备有限公司 | Integrated distributed rural sewage treatment device |
-
2020
- 2020-04-16 CN CN202010299010.5A patent/CN111362526A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090272687A1 (en) * | 2006-10-30 | 2009-11-05 | Chiang Ming-Hui | Method of Deep Sewage Treatment without Sludge Discharge and Device Therefor |
| CN105645699A (en) * | 2016-04-07 | 2016-06-08 | 成都赋阳技术开发有限公司 | Sewage purification treatment device |
| CN107445415A (en) * | 2017-09-28 | 2017-12-08 | 中冶华天工程技术有限公司 | A kind of rural domestic sewage treatment system |
| CN208327714U (en) * | 2018-04-17 | 2019-01-04 | 云南嘉科环保设备有限公司 | Rural domestic sewage treatment integrated apparatus |
| CN109052870A (en) * | 2018-10-12 | 2018-12-21 | 海南大和成环境工程有限公司 | domestic sewage processing system and method |
| CN210048631U (en) * | 2019-06-11 | 2020-02-11 | 江苏省科建成套设备有限公司 | Integrated distributed rural sewage treatment device |
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