CN108033560A - Septic tank up to standard - Google Patents
Septic tank up to standard Download PDFInfo
- Publication number
- CN108033560A CN108033560A CN201711279585.5A CN201711279585A CN108033560A CN 108033560 A CN108033560 A CN 108033560A CN 201711279585 A CN201711279585 A CN 201711279585A CN 108033560 A CN108033560 A CN 108033560A
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- Prior art keywords
- sewage
- septic tank
- standard
- bio
- pond
- 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.)
- Pending
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- 239000010865 sewage Substances 0.000 claims abstract description 85
- 239000002893 slag Substances 0.000 claims abstract description 44
- 238000001914 filtration Methods 0.000 claims abstract description 43
- 230000003647 oxidation Effects 0.000 claims abstract description 37
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000001556 precipitation Methods 0.000 claims abstract description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000001301 oxygen Substances 0.000 claims abstract description 15
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 15
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 11
- 231100000719 pollutant Toxicity 0.000 claims abstract description 11
- 238000005842 biochemical reaction Methods 0.000 claims description 17
- 239000000356 contaminant Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 230000015556 catabolic process Effects 0.000 claims description 7
- 238000006731 degradation reaction Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 5
- 238000004062 sedimentation Methods 0.000 claims description 5
- 239000010802 sludge Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000002550 fecal effect Effects 0.000 claims description 3
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 3
- 239000013049 sediment Substances 0.000 claims description 3
- 238000007667 floating Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims description 2
- 238000006213 oxygenation reaction Methods 0.000 claims description 2
- 238000010992 reflux Methods 0.000 claims description 2
- 238000004065 wastewater treatment Methods 0.000 abstract description 4
- 238000005276 aerator Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000592 Artificial Cell Substances 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- 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
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
For sanitary sewage pretreatment and advanced treatment is combined together, the present invention proposes septic tank up to standard.Its main units includes excrement slag bath, duct type grid, indirect return-flow system and bio-contact oxidation filtering settling pond；Sewage is filtered in septic tank up to standard, precipitation and biochemical action remove pollutant and improve water outlet dissolved oxygen, reaches in line or reuse after respective standard.Septic tank up to standard increases certain investment and operating cost than existing septic tank, but changes existing " septic tank+sewage collecting pipe network+centralized wastewater treatment factory " sewage disposal pattern, reduces pipe network and sewage treatment plant's investment, convenient just into reuse.
Description
Technical field
It is more particularly to a kind of to reach in line or reuse standard change the invention belongs to water pollution control and sewage treatment field
Manure pit.
Background technology
Septic tank is a kind of important Domestic sewage pretreatment unit, but handles sanitary sewage using septic tank merely,
Related in line or reuse standard cannot be reached, need to the in line or reuse of ability after advanced treating.And scattered sanitary sewage is deep
Spend treatment facility investment and operating cost is higher, therefore build sewage collecting pipe network to build concentration sewage again after scattered sewage collecting
Treatment plant carries out advanced treating." septic tank+sewage collecting pipe network+centralized wastewater treatment factory " here it is current extensive utilization is raw
Sewage disposal pattern living.
The investment of existing sanitary sewage disposal pattern and operating cost include septic tank, sewage collecting pipe network and concentrate sewage
Three parts for the treatment of plant.If exploitation one kind can meet pretreatment and advanced treatment requirement at the same time, sanitary sewage disposal is reached
To in line or reuse standard septic tank up to standard, then the investment of septic tank up to standard and operating cost can increase；If up to standardization excrement
The Payment control of pond increase part then reaches in the range of the investment of sewage collecting pipe network and concentration sewage treatment plant and operating cost
Mark septic tank economically has feasibility.
Septic tank up to standard can not only reduce investment and the operating cost of sewage disposal；And present mode dirt can be eliminated
Water harnessing effect is limited to the limitation of pipe network collection efficiency；At the same time sanitary sewage handle it is up to standard after can nearby Reuse on Environment,
Flush the toilet, road-cleaning, field irrigation etc.；In addition enter water body after sewage disposal is up to standard, water body purification ability can be utilized as early as possible, into
One step degradation of contaminant.
On investing.Required according to related specifications, septic tank hydraulic detention time is 12 ~ 24h, from hydraulic retention when
Between see, the residence time that septic tank meets most sewage treatment process requires, that is to say, that using existing septic tank
Volume can also build advanced treatment apparatus, and use the bio-contact oxidation that biochemical, precipitation and filtering combine together to filter
Sedimentation basin will greatly save volume requirement.In addition if extensive, mass production, installing septic tank up to standard on a large scale,
The investment cost of facility can reduce.
In terms of operating cost, wind turbine needed for septic tank up to standard, the equipment such as water pump is less, the consumption such as water power, medicament expense
Measure it is less, instrument appliance control require it is low, can be higher than existing septic tank in terms of operational management, but also have ready conditions can for increased expense
To control within the scope of sewage collecting pipe network and the operating cost of concentration sewage treatment plant, in addition may be used also if reuse
To produce certain economic value.
In China's in line or reuse standard current at present《Urban wastewater treatment firm pollutant emission standard》
（GB18918-2002）In level-one A standards be the highest standard of relative requirement, as long as level-one A standard other standards can be reached
Substantially can meet.The present invention is formed with a kind of embodiment come the digestion tank structure up to standard for illustrating water outlet water quality requirement relatively low, with
Another embodiment come illustrate water outlet water quality requirement it is higher level-one A mark septic tank structure composition.
The content of the invention
For sanitary sewage pretreatment and advanced treatment is combined together, the present invention proposes septic tank up to standard.Its main structure
Building thing includes excrement slag bath and bio-contact oxidation filtering settling pond；Set between excrement slag bath and bio-contact oxidation filtering settling pond logical
Road I, grid is set in passage I by excrement slag bath side；Sewage enters bio-contact oxidation after excrement slag bath and grid processing from passage I
Filtering settling pond, wherein bulky grain solid contaminant are intercepted in excrement slag bath, and sewage is in bio-contact oxidation filtering settling pond
Interior filtered, precipitation and biochemical action remove pollutant and improve water outlet dissolved oxygen.
Aerating system is set in bio-contact oxidation filtering settling pond, sanitary sewage in pond occurs for increase dissolved oxygen content
Aerobic biochemical reacts degradation of contaminant.
If two bio-contact oxidation filtering ponds sedimentation basins, control two pond bodies to be used as anoxic pond by aerating system and become reconciled
Oxygen pond alternate run, the biomembrane for making to produce in aerobic biochemical reaction process come off in anoxic biochemical reaction process, prevented
The blocking of filter system.
Passage II is set between anoxic pond and aerobic tank, using conveying device by anoxic pond sewage transport to aerobic tank, is carried
High aerobic pool water level, makes aerobic tank sewage voluntarily be back to anoxic pond through passage II；It is this to make mesh by conveying non-targeted sewage
The technology of sewage backflow is marked, the present invention is referred to as indirect technique of backflow.
Conveying device uses air-lift device, and air-lift device can share air blower with aerator.
Lean on the grid of simple excrement slag bath side use duct type grid in passage I, sewage pass through the gap of grid through passage I into
Enter bio-contact oxidation filtering settling pond, bulky grain pollutant is intercepted in excrement slag bath by fecal suction truck, sludge pump in sewage
Drawn clearly with reference to manual type.
Present invention septic tank up to standard, beneficial effect compared with prior art are：
1st, septic tank up to standard increases certain investment and operating cost than existing septic tank, but changes existing " septic tank+sewage
Collect pipe network+centralized wastewater treatment factory " sewage disposal pattern, reduce pipe network and sewage treatment plant's investment；
2nd, septic tank up to standard, which connects middle water, needs water user, more convenient for Treated sewage reusing；
3rd, septic tank up to standard is directly flexibly set nearby with pollution sources, from the limit value of sewage network collection efficiency；Pollution sources produce
Raw sewage is directly entered septic tank up to standard and is focused on, and the sewage such as no rainwater, underground water is mixed into, pollutant kind list
First, biodegradability is easily handled well up to standard；
4th, existing technique of backflow is that directly target phegma is conveyed, and target phegma of the invention is dirty for aerobic tank
Water, the present invention make aerobic tank sewage through passage from flowing to by by anoxic pond sewage transport to aerobic tank, improving aerobic pool water level
Anoxic pond, is to be distinguished with the existing technology directly conveyed to target phegma, the present invention is referred to as indirect technique of backflow；
6th, the present invention by air-lift device by anoxic pond sewage transport to aerobic tank, gas and waste water increase in air-lift device
Dirty content of oxygen dissolved in water, enhanced aeration effect；And aerobic tank sewage flow to anoxic pond certainly through passage, avoid free oxygen from entering and lack
Its anaerobic environment, intensified anti-nitrated denitrification effect are destroyed in oxygen pond；
7th, the present invention uses pipeline grid, and grid slag is intercepted in excrement slag bath, and septic tank ratio is discharged by fecal suction truck, sludge pump
Existing machinery grid and artificial cell structure are simple, easy for installation, and scarfing cinder labor intensity is low, labour health condition is good.
Brief description of the drawings
Fig. 1 is the horizontal layout schematic diagram of the embodiment of the present invention 1.
Fig. 2 is the A-A profiles of the embodiment of the present invention 1.
Fig. 3 is the horizontal layout schematic diagram of the embodiment of the present invention 2.
Fig. 4 is the B-B profiles of the embodiment of the present invention 2.
Wherein, water inlet pipe 1, excrement slag bath 2, bio-contact oxidation filtering settling pond 3, filtration system 3-1, collecting system 3-2,
Aerating system 3-3, passage I 4, control valve 4-1, grid 4-2, aerating system 5, indirect return-flow system 6, passage II 7, blowing line
8。
Excrement slag bath 2：General standard septic tank forms for three lattice, and the present invention is combined with bio-contact oxidation filtering settling pond to be made
Can be reduced to a lattice with rear septic tank, major function be make excrement, bulky grain pollutant, grid slag etc. precipitated in pond body or
Float and remove, and periodically draw clearly.
Embodiment
Embodiment 1.
Septic tank up to standard.Its main units includes excrement slag bath 2 and bio-contact oxidation filtering settling pond 3；Excrement slag bath 2 with
Passage I 3 is set between bio-contact oxidation filtering settling pond, grid 4-2 is set by 2 side of excrement slag bath in passage I 3；Sewage is through excrement slag
Enter bio-contact oxidation filtering settling pond 3 from passage I 4 after the processing of pond 2, wherein bulky grain solid contaminant is intercepted at excrement slag
In pond 2, sewage is filtered in bio-contact oxidation filtering settling pond 3, precipitation and biochemical action remove pollutant and improve out
Water dissolved oxygen.
The present invention comprises the following steps when reaching relatively low Effluent criteria requirement：
（1）Sediment：Sewage enters excrement slag bath 2 through water inlet pipe, and precipitation concurrently gives birth to anaerobic biochemical reaction in excrement slag bath 2；
（2）Grid filtration：Sewage enters bio-contact oxidation filtering settling pond 3 through grid 4-2, and grid slag is intercepted at excrement slag bath
Precipitation in 2；
（3）Biochemical, precipitation：Biochemical, precipitation occurs in bio-contact oxidation sedimentation and filtration ditch 3 and removes pollutant for sewage；
（4）Filter water outlet：Sewage water-head effect under through bio-contact oxidation filtering settling pond 3 filtration system 3-1 into
Enter collecting system 3-2, and bio-contact oxidation occurs and reacts further degradation of contaminant, water water dissolved oxygen content is improved, through collection
Water system 3-2 qualified discharges.
Embodiment 2.
Level-one A marks septic tank.Its main units includes excrement slag bath 2 and bio-contact oxidation filtering settling pond 3；Excrement slag bath
2 set passage I 4 with bio-contact oxidation filtering settling pond, and grid 4-2 is set by 2 side of excrement slag bath in passage I 4；Sewage excrement slag bath 2
Enter bio-contact oxidation filtering settling pond 3 from passage I 4 after processing, wherein bulky grain solid contaminant is intercepted at excrement slag bath 2
Interior precipitation or floating remove, and sewage is filtered in bio-contact oxidation filtering settling pond 3, precipitation and biochemical action remove depollution
Thing simultaneously improves water outlet dissolved oxygen.
Aerating system 5 is set in bio-contact oxidation filtering settling pond 3, increase dissolved oxygen content sends out sanitary sewage in pond
Raw aerobic biochemical reaction degradation of contaminant.
If two bio-contact oxidation filtering ponds sedimentation basins 3, by aerating system 5 control two pond bodies be used as anoxic pond with
Aerobic tank alternate run, the biomembrane for making to produce in aerobic biochemical reaction process come off during anaerobic biochemical reaction, prevent
The blocking of filtration system.
Passage II 7 is set between anoxic pond and aerobic tank, using conveying device（6）By anoxic pond sewage transport to aerobic
Pond, improves aerobic pool water level, aerobic tank sewage is voluntarily back to anoxic pond through passage II；It is this by conveying non-targeted sewage
Make the technology of target sewage backflow, the present invention is referred to as indirect technique of backflow.
Conveying device uses air-lift device, and air-lift device can share air blower with aerator.
The grid 4-2 for leaning on simple 2 side of excrement slag bath in passage I 3 uses duct type grid, and sewage is through the gap of grid through logical
Road I 4 enters bio-contact oxidation filtering settling pond 3, and bulky grain pollutant is intercepted in excrement slag bath 2 by inhaling excrement in sewage
Car, sludge pump combination manual type are drawn clearly.
The present invention comprises the following steps when need to reach higher Effluent criteria requirement：
（1）Sediment：Sewage enters excrement slag bath 2 through water inlet pipe 1, and precipitation concurrently gives birth to anaerobic biochemical reaction in excrement slag bath 2；
（2）Grid filtration：Sewage enters anoxic pond through grid 4-2, and grid slag is intercepted at precipitation in excrement slag bath 2；
（3）Anoxic biochemical reaction：Sewage in anoxic pond with aerobic tank reflux sewage hybrid concurrency life anoxic biochemical reaction with
And denitrification, sewage delivery device（6）It is delivered to aerobic tank；
（4）Aerobic biochemical reacts：Sample biochemical reaction has occurred in aerobic tank for sewage under the oxygenation of aerating system 5；
（5）Filter water outlet：Sewage water-head effect under through bio-contact oxidation filtering settling pond 3 filtration system 3-1 into
Enter collecting system 3-2, and bio-contact oxidation occurs and reacts further degradation of contaminant, water water dissolved oxygen content is improved, through collection
Water system 3-2 qualified discharges.
Claims (6)
1. septic tank up to standard, it is characterised in that main units include excrement slag bath（2）With bio-contact oxidation filtering settling pond
（3）；Excrement slag bath（2）Passage I is set with bio-contact oxidation filtering settling pond（4）, in passage I（4）By excrement slag bath（2）Side sets lattice
Grid（4-2）；Sewage excrement slag bath（2）From passage I after processing（4）Into bio-contact oxidation filtering settling pond（3）, wherein bulky grain
Solid contaminant is intercepted at excrement slag bath（2）Interior precipitation or floating remove, and sewage is in bio-contact oxidation filtering settling pond（3）It is interior
Filtered, precipitation and biochemical action remove pollutant and improve water outlet dissolved oxygen.
2. septic tank up to standard as claimed in claim 1, it is characterised in that in bio-contact oxidation filtering settling pond（3）Inside set exposure
Gas system（5）, increasing dissolved oxygen content makes sanitary sewage in pond that aerobic biochemical reaction degradation of contaminant occur.
3. septic tank up to standard as claimed in claim 1, it is characterised in that set two bio-contact oxidation filtering ponds sedimentation basins
（3）, pass through aerating system（5）Two pond bodies are controlled to make aerobic biochemical reaction process as anoxic pond and aerobic tank alternate run
The biomembrane of middle generation comes off during anaerobic biochemical reaction, prevents the blocking of filtration system.
4. septic tank up to standard as claimed in claim 1, it is characterised in that passage II is set between anoxic pond and aerobic tank（7）,
Using conveying device（6）By anoxic pond sewage transport to aerobic tank, aerobic pool water level is improved, makes aerobic tank sewage through passage II
（7）Voluntarily it is back to anoxic pond；It is this to make the technology of target sewage backflow by conveying non-targeted sewage, between the present invention is referred to as
Take back Flow Technique.
5. septic tank up to standard as claimed in claim 1, it is characterised in that in passage I（3）By simple excrement slag bath（2）The grid of side
（4-2）Using duct type grid, sewage is through the gap of grid through passage I（4）Into bio-contact oxidation filtering settling pond
（3）, bulky grain pollutant is intercepted at excrement slag bath in sewage（2）It is interior to be drawn clearly by fecal suction truck, sludge pump combination manual type.
6. septic tank up to standard as claimed in claim 1, it is characterised in that specific working mode is including but not limited to as follows：
1. sediment：Sewage enters excrement slag bath through water inlet pipe 1（2）, in excrement slag bath（2）Interior precipitation concurrently gives birth to anaerobic biochemical reaction；
2. grid filtration：Sewage passes through grid（4-2）Into anoxic pond, grid slag is intercepted at excrement slag bath（2）Interior precipitation；
3. anoxic biochemical reaction：Sewage in anoxic pond with aerobic tank reflux sewage hybrid concurrency life anoxic biochemical reaction and
Denitrification, sewage delivery device（6）It is delivered to aerobic tank；
4. aerobic biochemical reacts：In aerating system（5）Oxygenation under sewage sample biochemical reaction has occurred in aerobic tank；
5. filter water outlet：Sewage passes through bio-contact oxidation filtering settling pond under water-head effect（3）Filtration system（3-1）
Into collecting system（3-2）, and bio-contact oxidation occurs and reacts further degradation of contaminant, water water dissolved oxygen content is improved,
Through collecting system（3-2）Qualified discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711279585.5A CN108033560A (en) | 2017-12-07 | 2017-12-07 | Septic tank up to standard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711279585.5A CN108033560A (en) | 2017-12-07 | 2017-12-07 | Septic tank up to standard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108033560A true CN108033560A (en) | 2018-05-15 |
Family
ID=62095701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711279585.5A Pending CN108033560A (en) | 2017-12-07 | 2017-12-07 | Septic tank up to standard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108033560A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107875708A (en) * | 2017-12-19 | 2018-04-06 | 邱学尧 | Filter pipe and its filter |
| CN110372165A (en) * | 2019-08-18 | 2019-10-25 | 邱学尧 | A marks septic tank |
| CN110862190A (en) * | 2019-11-21 | 2020-03-06 | 福建省融旗建设工程有限公司 | Septic tank adopting pretreatment and biological contact and sewage treatment method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897975A (en) * | 2012-10-12 | 2013-01-30 | 常州大学 | Sewage treatment method of town blocks |
| CN204752494U (en) * | 2015-07-20 | 2015-11-11 | 谢晓东 | Sewage treatment system of hospital |
| CN105129969A (en) * | 2015-08-31 | 2015-12-09 | 罗琼 | Periphery filtering effluent biochemistry sedimentation tank |
| CN105668792A (en) * | 2016-03-07 | 2016-06-15 | 邱学尧 | Bio-contact oxidation filter sedimentation tank |
-
2017
- 2017-12-07 CN CN201711279585.5A patent/CN108033560A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897975A (en) * | 2012-10-12 | 2013-01-30 | 常州大学 | Sewage treatment method of town blocks |
| CN204752494U (en) * | 2015-07-20 | 2015-11-11 | 谢晓东 | Sewage treatment system of hospital |
| CN105129969A (en) * | 2015-08-31 | 2015-12-09 | 罗琼 | Periphery filtering effluent biochemistry sedimentation tank |
| CN105668792A (en) * | 2016-03-07 | 2016-06-15 | 邱学尧 | Bio-contact oxidation filter sedimentation tank |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107875708A (en) * | 2017-12-19 | 2018-04-06 | 邱学尧 | Filter pipe and its filter |
| CN110372165A (en) * | 2019-08-18 | 2019-10-25 | 邱学尧 | A marks septic tank |
| CN110862190A (en) * | 2019-11-21 | 2020-03-06 | 福建省融旗建设工程有限公司 | Septic tank adopting pretreatment and biological contact and sewage treatment method |
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Application publication date: 20180515 |