CN101759331A - System for treating sewage of preposition activated sludge-gallery type artificial wetland and method therefor - Google Patents
System for treating sewage of preposition activated sludge-gallery type artificial wetland and method therefor Download PDFInfo
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- CN101759331A CN101759331A CN201010042039A CN201010042039A CN101759331A CN 101759331 A CN101759331 A CN 101759331A CN 201010042039 A CN201010042039 A CN 201010042039A CN 201010042039 A CN201010042039 A CN 201010042039A CN 101759331 A CN101759331 A CN 101759331A
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Abstract
The invention discloses a system for treating sewage of preposition activated sludge-gallery type artificial wetland and a method therefor. The treating system comprises a grit chamber, a preposition activated sludge treating pool, a sequential perforated plate isolating regulation pool and gallery type artificial wetland groups, wherein the gallery type artificial wetland groups are connected end to end. In the invention, the activated sludge treating method is combined with the gallery type artificial wetland groups to form an integral sewage treating system; the sewage is precipitated and filtered in the grit chamber, and then enters the gallery type artificial wetland for further treatment by the sequential perforated plate isolating regulation pool after being treated by the preposition activated sludge treating pool; after at least two levels of the gallery type artificial wetlands connected in series, the system can realize the best and stable treating effect.
Description
Technical field:
The invention belongs to sewage treatment area, specifically relate to a kind of preposition activated mud-gallery formula artificial marsh sewage treatment system.
Background technology:
Along with the fast development of economy and urbanization of villages, total amount of sewage discharge sharply increases, and sanitary sewage proportion is increasing; For city domestic sewage, can take to concentrate discharging, the unified way of handling is handled, but it is at random that source of pollution are distributed, and single pollutant source emission is little, and the domestic sewage in rural areas by using that is the face source can not take centralized system effectively to handle.The present situation of China's shortage of water resources is immutable, and a large amount of sanitary sewages are not effectively addressed, and it is particularly important that the researchdevelopment of various sewage disposal technologies just seems.Conventional sewage disposal technology is expensive because of its cost, operational management requires high shortcoming can not well be applied to administer the small-sized pollution of area source of domestic sewage in rural areas by using, because of artificial swamp has characteristics such as investment running cost is low, simple to operate, the organic matter removal ability is strong, running maintenance convenient and ecological environment benefit significantly also can be beautified the environment, just progressively be applied to administer domestic sewage in rural areas by using.
But in actual motion, there is following technical problem in artificial swamp: when (1) sewage was directly handled, the fluctuation of waste water quality was big, caused the impact resistance of wet land system poor, and processing power is with successively decreasing working time, and shorten work-ing life.(2) the inner single oxygen environment of wetland is unsuitable for multiple microbial activities, has reduced the removal ability of artificial swamp.(3) exist and easily to stop up and problems such as fluctuation of service, especially to the removal poor stability of nitrogen, phosphorus.
Summary of the invention:
For solving the weak point of existing artificial swamp technology, a kind of preposition activated mud-gallery formula artificial marsh sewage treatment system that the object of the present invention is to provide sewage water treatment method and realize this method, this system is in series Sludge System and gallery formula artificial wet land system, constructing is an incorporate Sewage treatment systems, to reach the effective processing to sewage.
The technical solution used in the present invention is as follows:
A kind of preposition activated mud-gallery formula artificial marsh sewage treatment system, it comprises settling pit, preposition activated mud treating pond, order porous plate separation equalizing tank and end to end gallery formula artificial swamp.Enter preposition activated sludge mud treating pond behind the sewage process settling pit sedimentation and filtration, enter gallery formula artificial swamp by order porous plate separation equalizing tank again and further handle.Described settling pit is positioned at system's water-in, and its water outlet connects preposition activated mud treating pond; The water outlet of described preposition activated mud treating pond enters the order porous plate by flowrate control valve and separates equalizing tank, enters gallery formula artificial swamp by the drop of zigzag system water distributor again.
Described preposition activated mud treating pond is made up of aeration tank, preliminary sedimentation tank and second pond, and the three is the concentric structure relation, is followed successively by aeration tank, preliminary sedimentation tank and second pond from inside to outside, and water-in is located at the aeration tank, and water outlet is located at second pond; The bottom level in each pond is improved by the pond to preliminary sedimentation tank, second pond by the aeration tank, and is communicated with successively by grid between the bottom of preliminary sedimentation tank sidewall and aeration tank and between second pond bottom sidewall and the preliminary sedimentation tank; Be provided with aeration tube in the aeration tank, the bottom of aeration tank is provided with shore pipe, and has access to mud return line from the outside.
It is to adopt porous plate that the pond body is separated at least two ponds that connect successively to constitute that described order porous plate is separated equalizing tank, and basin bottom is provided with mud discharging mouth.
Described gallery formula artificial swamp is in series with high identical drowned flow artificial wet land subelement by at least two length and widths, connects by gallery each other; The water-in of each drowned flow artificial wet land subelement and water outlet be positioned opposite on the length direction of drowned flow artificial wet land subelement, and the water outlet of last drowned flow artificial wet land subelement links to each other by the water-in of gallery with back one drowned flow artificial wet land subelement;
The base slope of described gallery formula artificial swamp is set to 1～2%, is tilted to the last drowned flow artificial wet land subelement by first drowned flow artificial wet land subelement, plants different plants and fill filler in each drowned flow artificial wet land subelement.
Described zigzag system water distributor is the open elongated slot body structure in a top, the uncovered indentation of cell body, be arranged in the gallery of first drowned flow artificial wet land subelement front end of gallery formula artificial swamp, its water inlet is connected with the rising pipe of order porous plate separation equalizing tank, and water outlet is fallen in the gallery; Perhaps, the zigzag system water distributor is arranged in two gallerys between the drowned flow artificial wet land subelement, and its water inlet is connected with the water outlet of last drowned flow artificial wet land subelement, and water outlet is fallen in the gallery.
It is as follows to utilize said system to carry out the method steps of sewage disposal:
(1) earlier with sewage through the settling pit sedimentation and filtration, after enter preposition activated sludge mud treating pond;
(2) sewage biochemical action by action of gravity and active sludge in preposition activated mud treating pond, the dissolved organic matter in sedimentation suspended organic matter and the degradation of sewage;
(3) allow sewage enter the order porous plate by flowrate control valve then and separate equalizing tank by preposition activated mud treating pond, compartmentation through porous plate, make the mud and the suspended substance separation that remain in the sewage obtain abundant sedimentation, reduce mud and suspension content in its water outlet;
(4) sewage enters the zigzag system water distributor by order porous plate separation equalizing tank again, impels sewage to be the waterfall type drop, enters gallery formula artificial swamp, improves wetland water inlet dissolved oxygen content by the atmosphere oxygenation;
(5) utilize the placed in-line artificial swamp subelement of each of gallery formula artificial swamp system that sewage is handled, the water after handling is at last discharged from the water port of gallery formula artificial swamp series system end.
The present invention has following advantage:
1, realizes the primary treatment of sewage by activated sludge method, can cut down sewage organic loading and suspended substance significantly, improve the impact capacity of the anti-waste water high-pollution load of artificial wet land system, effectively reduce the possibility that wetland stops up, the normal operation of artificial swamp can be guaranteed, and the work-ing life of artificial swamp can be prolonged greatly;
2, concentric structure is adopted in the active sludge treatment pond, utilizes the precipitating action of preliminary sedimentation tank, second pond, can prevent effectively that the sludge bulking phenomenon from taking place, and reduces mud and suspended solids content in the Sludge System water outlet, effectively reduces the possibility that wetland stops up; Simultaneously can reduce floor space.
3, system's employing order porous plate separation equalizing tank can effectively avoid active sludge to enter the anaerobism current wetland, effectively reduces the possibility that wetland stops up; Enter the anaerobic current wetland because contain the sewage of active sludge from oxygen-enriched environment, make the microorganism living environment take place sharply to change and cause its death, cause the wetland obstruction easily suddenly.
4, system adopts the zigzag system water distributor to realize that drop and air reaeration have obviously improved the inner dissolved oxygen distribution situation of wetland as the oxygenation mode, has simplified the complexity of running maintenance greatly, has reduced running cost;
5, system adopts the design of gallery artificial swamp can obviously improve the wetland denitrification effect, makes system's water outlet long-term stability.
Description of drawings:
The preposition activated mud of Fig. 1-gallery formula artificial marsh sewage treatment system orthographic plan
The preposition activated mud treating pond of Fig. 2 vertical view
The preposition activated mud treating pond of Fig. 3 sectional view
Fig. 4 order porous plate is separated equalizing tank A-A sectional view
Fig. 5 gallery formula artificial swamp vertical view
Fig. 6 zigzag system water distributor sectional view
Fig. 7 gallery formula artificial swamp subelement sectional view
Fig. 8 gallery sectional view
Embodiment:
As shown in Figure 1, this Sewage treatment systems includes settling pit 1, preposition activated mud treating pond 2, order porous plate separation equalizing tank 3 and gallery formula artificial swamp 4.Sewage enters preposition activated sludge mud treating pond 2 after settling pit 1 filters, enter gallery formula artificial swamp 4 by order porous plate separation equalizing tank 3 again and further handle.
Settling pit 1 is positioned at system's water-in, can adopt conventional settling pit structure, specifically can comprise settling pit body and grid as it, the grid interval of grid strip can be 5-10mm, mainly is to remove bigger inorganic particulate matter and suspended impurity in the sewage by holding back of action of gravity and grid.
The structure of preposition activated mud treating pond 2 as shown in Figures 2 and 3, treating pond is made up of aeration tank 8, preliminary sedimentation tank 9 and second pond 10, the three is the concentric structure relation, be followed successively by aeration tank 8, preliminary sedimentation tank 9 and second pond 10 from inside to outside, water-in is located at aeration tank 8, connect water service pipe 5, water shoot is located at second pond 10.The bottom level in each pond is improved by the pond to preliminary sedimentation tank 9, second pond 10 by aeration tank 8, and is communicated with successively by grid between the bottom of preliminary sedimentation tank 9 sidewall and aeration tank 8 and between the bottom sidewall of second pond 10 and the preliminary sedimentation tank 9.The bottom of aeration tank 8 is provided with shore pipe 14, and directly has access to mud return line 12 from the outside to the aeration tank 8.Aeration tube 6 in the aeration tank 8 is the T type, and pressurized air enters aeration tank 8 through T type gas-filled valve.
Sewage flows into aeration tank 8 through water service pipe 5, and aeration head 7 blasts air by aeration tube 6 and carries out aeration, to realize waste water active sludge treatment (initial operating stage mud return line 12 backflow part mud are to increase microorganism).Water in the aeration tank 8 flows into peripheral preliminary sedimentation tank 9 through bottom grid, preliminary sedimentation tank 9 settled mud also flow in the aeration tank 8 by bottom grid, water in the preliminary sedimentation tank 9 flows into second pond 10 through bottom grid, the mud of second pond 10 precipitates under action of gravity, mud bottom being precipitated to backflows by bottom grid in the preliminary sedimentation tank 9, together pass back in the aeration tank 8 with the mud of preliminary sedimentation tank 9, unnecessary mud in the aeration tank 8 is discharged by shore pipe 14, avoid too much causing problems such as sludge bulking because of mud, returned sluge (when needs, as at system's initial operating stage) is realized by mud return line 12.Water in the second pond 10 is discharged by water shoot 11 and standby water shoot 13, wherein standby water shoot 13 is mainly used in when avoiding import water to increase severely the impact of wet land system, and the sewage of the water shoot 11 of flowing through enters the order porous plate by flowrate control valve 15 and separates equalizing tank 3.
As shown in Figure 4, it is to adopt porous plate 17 that the pond body is separated into three ponds that connect successively to constitute that the order porous plate is separated equalizing tank 3, and basin bottom is provided with mud discharging mouth 18.The order porous plate is separated the water shoot 11 of the preposition activated mud treating pond 2 of equalizing tank 3 one terminations, and the other end picks out waterpipe 16.
When sewage inflow order porous plate is separated equalizing tank 3,, make the mud and the suspended substance separation that remain in the waste water obtain abundant sedimentation, reduce mud and suspension content in its water outlet greatly through the compartmentation of porous plate 17; Can effectively avoid a large amount of mud to enter the anaerobism current wetland, make the microorganism living environment take place sharply to change and cause its death, avoid the wetland obstruction.Settled mud is discharged by mud discharging mouth 18.
As Fig. 4, Fig. 5 and shown in Figure 6, the water that the order porous plate is separated equalizing tank 3 flows in the zigzag system water distributor 19 by outlet conduit 16, zigzag system water distributor 19 is the open elongated slot body structure in a top, the uncovered indentation of cell body, be arranged in the gallery 21 of first drowned flow artificial wet land subelement front end of gallery formula artificial swamp, its water outlet is promptly fallen in the gallery 21.Certainly according to practical situation, as the water outlet dissolved oxygen content of first drowned flow artificial wet land subelement when low, zigzag system water distributor 19 also can be arranged in two gallerys 21 between the drowned flow artificial wet land subelement, its water inlet is connected with the water outlet of last drowned flow artificial wet land subelement, and water outlet is fallen in the gallery.
As seen the position that is provided with of zigzag system water distributor 19 can be decided according to the height of water dissolution oxygen level, the sewage that flows into zigzag system water distributor 19 is the waterfall type drop by saw tooth belt 20 and enters gallery 21, this saw tooth belt can impel sewage to be the waterfall type drop, improves wetland water inlet dissolved oxygen content by the atmosphere oxygenation.
Referring to Fig. 5 and Fig. 6, gallery formula artificial swamp is in series with high identical drowned flow artificial wet land subelement 28 by three length and widths, separates and is communicated with by gallery 21 each other.The water-in 22 of each drowned flow artificial wet land subelement 28 and water outlet 23 positioned opposite on the length direction of drowned flow artificial wet land subelement 28, and the water outlet 23 of last drowned flow artificial wet land subelement links to each other by the water-in 22 of gallery 21 with back one drowned flow artificial wet land subelement.
The antiseepage processing is carried out in the bottom of artificial swamp, and constructs 1～2% the gradient, is descended to water outlet 23 directions by water-in 22, is also descended to the last drowned flow artificial wet land subelement by first drowned flow artificial wet land subelement simultaneously.Wetland adopts top that the mode that water-in 22, bottom set out the mouth of a river 23 is set, and make waste water enter artificial swamp through gallery and form the turnover network of rivers, and the height of water inlet position successively decreases with the placed in-line sequencing of subelement, and sewage is discharged by rising pipe 29 at last.
The structure of each drowned flow artificial wet land subelement 28 is identical, the plant that interior plantation is different, and landfill has the mixed fillers such as earth, cinder and gravel of better removal ability to pollutent.Mode is that the bottom is filled earth 25, cinder 26 and gravel 27 successively from wetland top to wetland preferably.Mix land-fill method by this, guarantee the growth of plant, improve the removal ability of wetland phosphorus.Plantation plant such as Canna generalis Bailey etc. in the wetland, the interior serike 24 of wetland etc. rely on plant that the absorption of various elements and the oxygen of secreting of root system of plant are further improved system handles efficient.
The treating processes of sewage is as follows:
After sewage flows into settling pit 1, remove bigger inorganic particulate matter and suspended impurity in the sewage by holding back of action of gravity and grid.Sewage flows into preposition activated mud treating pond 2 by water inlet pipe 5 then, remove pollutent by the aerobic effect of aeration tank 8 on the one hand, on the other hand by the suspended substance in the separation by gravity sewage of preliminary sedimentation tank 9 and second pond 10, the mud that produces is back to 8 bottoms, aeration tank, discharges by bottom shore pipe 14.Separate equalizing tank 3 through the second pond oettIed sewage by water shoot 11 and flowrate control valve 15 inflows order porous plate, make the mud and the suspended substance that remain in the waste water obtain abundant sedimentation, the mud that produces is discharged by shore pipe 18, and waste water flows in the zigzag system water distributor 19 by pipeline 16, after falling into gallery 21 by saw tooth belt 20, flow in the drowned flow artificial wet land subelement 28 by water-in 22, sewage is at earth filler 25, cinder filler 26, the physics of the complex ecosystem that gravel filling 27 and plant 24 and microorganism etc. form, be purified processing under chemical and biological triple synergies, flow in the gallery 21 through water outlet 23, discharge by rising pipe 29 at last.Sewage under the gallery formula artificial swamp subsequent treatment of two-stage series connection at least, can obtain the best and stable treated effect after Wastewater Treated by Activated Sludge Process.
Claims (9)
1. preposition activated mud-gallery formula artificial marsh sewage treatment system, the integrated effluent disposal system that equalizing tank and gallery formula artificial swamp are built into is separated by settling pit, preposition activated mud treating pond, order porous plate by described system;
It is characterized in that: described settling pit is positioned at system's water-in, and the water outlet of settling pit connects preposition activated mud treating pond; The water outlet of described preposition activated mud treating pond enters the order porous plate by flowrate control valve and separates equalizing tank, and the water outlet that the order porous plate is separated equalizing tank inserts gallery formula artificial swamp by the zigzag system water distributor, or directly taps into gallery formula artificial swamp.
2. preposition activated mud according to claim 1-gallery formula artificial marsh sewage treatment system, it is characterized in that: described preposition activated mud treating pond is made up of aeration tank, preliminary sedimentation tank and second pond, the three is the concentric structure relation, be followed successively by aeration tank, preliminary sedimentation tank and second pond from inside to outside, water-in is located at the aeration tank, water shoot is located at second pond, and is provided with flowrate control valve on water shoot; The bottom level in each pond is improved by the pond to preliminary sedimentation tank, second pond by the aeration tank, and between the bottom of preliminary sedimentation tank sidewall and aeration tank, and is communicated with successively by grid between second pond bottom sidewall and the preliminary sedimentation tank; Be provided with aeration tube in the aeration tank, the bottom of aeration tank is provided with shore pipe.
3. preposition activated mud according to claim 2-gallery formula artificial marsh sewage treatment system is characterized in that: have access to mud return line to the aeration tank from the outside.
4. according to claim 2 or 3 described preposition activated mud-gallery formula artificial marsh sewage treatment systems, it is characterized in that: aeration tube is the T type in the described aeration tank, and pressurized air enters the aeration tank through T type aeration tube.
5. preposition activated mud according to claim 1 and 2-gallery formula artificial marsh sewage treatment system, it is characterized in that: it is to adopt porous plate that the pond body is separated at least two ponds that connect successively to constitute that described order porous plate is separated equalizing tank, and basin bottom is provided with mud discharging mouth.
6. preposition activated mud according to claim 1 and 2-gallery formula artificial marsh sewage treatment system, it is characterized in that: described gallery formula artificial swamp is in series with high identical drowned flow artificial wet land subelement by at least two length and widths, connects by gallery each other; The water-in of each drowned flow artificial wet land subelement and water outlet be positioned opposite on the length direction of drowned flow artificial wet land subelement, and the water outlet of last drowned flow artificial wet land subelement links to each other by the water-in of gallery with back one drowned flow artificial wet land subelement;
The base slope of described gallery formula artificial swamp is set to 1～2%, descend to the water outlet direction by water-in, also descend to the last drowned flow artificial wet land subelement simultaneously, in each drowned flow artificial wet land subelement, plant different plants and fill filler by first drowned flow artificial wet land subelement.
7. preposition activated mud according to claim 6-gallery formula artificial marsh sewage treatment system, it is characterized in that: the water-in of described drowned flow artificial wet land subelement is arranged on top, water outlet is arranged on the bottom, and the height of water-in successively decreases with the placed in-line sequencing of subelement.
8. preposition activated mud according to claim 6-gallery formula artificial marsh sewage treatment system, it is characterized in that: described zigzag system water distributor is the open elongated slot body structure in a top, the uncovered indentation of cell body, be arranged in the gallery of first drowned flow artificial wet land subelement front end of gallery formula artificial swamp, its water inlet is connected with the rising pipe that the order porous plate is separated equalizing tank, and water outlet is fallen in the gallery; Perhaps, the zigzag system water distributor is arranged in two gallerys between the drowned flow artificial wet land subelement, and its water inlet is connected with the water outlet of last drowned flow artificial wet land subelement, and water outlet is fallen in the gallery.
9. utilize claim 1 method that described preposition activated mud-gallery formula artificial marsh sewage treatment system carries out sewage disposal, the step of described method is as follows:
(1) earlier with sewage through the settling pit sedimentation and filtration, after enter preposition activated sludge mud treating pond;
(2) sewage biochemical action by action of gravity and active sludge in preposition activated mud treating pond, the dissolved organic matter in sedimentation suspended organic matter and the degradation of sewage;
(3) allow sewage enter the order porous plate by flowrate control valve then and separate equalizing tank by preposition activated mud treating pond, compartmentation through porous plate, make the mud and the suspended substance separation that remain in the sewage obtain abundant sedimentation, reduce mud and suspension content in its water outlet;
(4) sewage enters the zigzag system water distributor by order porous plate separation equalizing tank again, impels sewage to be the waterfall type drop, enters gallery formula artificial swamp, improves wetland water inlet dissolved oxygen content by the atmosphere oxygenation;
(5) utilize the placed in-line artificial swamp subelement of each of gallery formula artificial swamp system that sewage is handled, the water after handling is at last discharged from the water port of gallery formula artificial swamp series system end.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010100420391A CN101759331B (en) | 2010-01-12 | 2010-01-12 | System for treating sewage of preposition activated sludge-gallery type artificial wetland and method therefor |
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| CN2010100420391A CN101759331B (en) | 2010-01-12 | 2010-01-12 | System for treating sewage of preposition activated sludge-gallery type artificial wetland and method therefor |
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| CN101759331A true CN101759331A (en) | 2010-06-30 |
| CN101759331B CN101759331B (en) | 2011-07-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101880089A (en) * | 2010-07-16 | 2010-11-10 | 华南理工大学 | Baffling type constructed wetland device for treatment of low-concentration area source pollution |
| CN109205946A (en) * | 2018-10-17 | 2019-01-15 | 湖北省鼎城都市环保科技有限公司 | Wash water recovery and processing system |
| CN111573979A (en) * | 2020-05-22 | 2020-08-25 | 金文贤 | Sewage treatment and recycling method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101585637A (en) * | 2008-05-20 | 2009-11-25 | 海斯博特（北京）科技有限公司 | High-concentration sewage treatment system for artificial wetland primarily |
-
2010
- 2010-01-12 CN CN2010100420391A patent/CN101759331B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101880089A (en) * | 2010-07-16 | 2010-11-10 | 华南理工大学 | Baffling type constructed wetland device for treatment of low-concentration area source pollution |
| CN109205946A (en) * | 2018-10-17 | 2019-01-15 | 湖北省鼎城都市环保科技有限公司 | Wash water recovery and processing system |
| CN111573979A (en) * | 2020-05-22 | 2020-08-25 | 金文贤 | Sewage treatment and recycling method |
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