CN104098175A - Activated sludge-bio-filter bed-landscape ecology sewage treatment method and system - Google Patents
Activated sludge-bio-filter bed-landscape ecology sewage treatment method and system Download PDFInfo
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- CN104098175A CN104098175A CN201410333385.3A CN201410333385A CN104098175A CN 104098175 A CN104098175 A CN 104098175A CN 201410333385 A CN201410333385 A CN 201410333385A CN 104098175 A CN104098175 A CN 104098175A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention relates to an activated sludge-bio-filter bed-landscape ecology sewage treatment method and system. In order to solve problems that the landscape effect is poor, peculiar smell is serious, a large amount of sludge is produced and the like in the wastewater treatment process, an activated sludge-bio-filter bed-landscape ecology sewage treatment method and system are developed in combination of activated sludge, a bio-filter bed, a landscape wetland and the like in the water treatment technology. The method and the system are used for treating domestic wastewater, organic wastewater, surface polluted water and the like and have the advantages of simple structure, low operation cost and high removal rate of ammonia, nitrogen and COD (chemical oxygen demand), and organic combination and advantage complementation of landscape ecology and a wastewater treatment technology are achieved through ways such as plant matching and selection, landscape construction and the like.
Description
Technical field
The present invention relates to sewage treatment area, more particularly, relate to a kind of active sludge-bacteria bed-landscape ecological sewage water treatment method, and a kind of active sludge-bacteria bed-landscape ecological Sewage treatment systems.
Background technology
Most domestic sewage treatment project main factor of considering in design and construction process is technology and economy, often ignores the harmony with environment.Along with scientific and technological development, the progress of society, the raising of living standards of the people, the aesthetic level of people is more and more higher, more focus on the harmony of human and environment, in the today of praising highly the green earth, Green Homeland, how in field of Environment Protection by the organic Green Homeland that incorporates of engineering landscape ecology, the harmonious home of building together has epoch-making meaning.
The problem such as have in the wastewater treatment process of prior art that landscape effect is poor, peculiar smell is serious, sludge creation amount is large, along with the proposition of ecotope idea, landscape ecological treatment system has the technology of sewage disposal and landscape function concurrently and causes concern as a kind of.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of efficient and good active sludge-bacteria bed-landscape ecological sewage water treatment method of landscape effect is provided, and a kind of active sludge-bacteria bed-landscape ecological Sewage treatment systems is provided.
Technical scheme of the present invention is as follows:
A kind of active sludge-bacteria bed-landscape ecological sewage water treatment method, pending water enters into the activated sludge tank of aeration, go through the biopurification of Microbial Communities in Activated Sludge, through ceramic aggregate biological filter material layer, filter, the microbial film on ceramic aggregate biological filter material layer surface further purifies the pollutent in water again;
In ceramic aggregate biological filter material layer, plant landscape plant, by root system of plant fixation of microbe, and utilize and remove the nitrogen and phosphorus pollutants in pending water by the mode of plant utilization, be purified water;
The integral part purify waste water, hydrocoles, landscape plant, microbial film, activated sludge tank becoming landscape ecosystem.
A kind of active sludge-bacteria bed-landscape ecological Sewage treatment systems, comprise activated sludge tank, ceramic aggregate biological filter material layer, landscape plant, hydrocoles, water inlet pipe stretches into activated sludge tank, pending water flows into activated sludge tank from water inlet pipe, aeration tube extends activated sludge tank bottom, aeration tube communicates with atmosphere, and activated sludge tank carries out aeration by aeration tube; Ceramic aggregate biological filter material layer is by being nested with unsettled being arranged in activated sludge tank, and ceramic aggregate biological filter material layer surface is covered with microbial film, and the root system of landscape plant is fixed in ceramic aggregate biological filter material layer; Be nested with top and be provided with water collecting dike, purify waste water from being nested with inflow water collecting dike, then carry out water outlet.
As preferably, the bottom surface being nested with is provided with supporting plate, and ceramic aggregate biological filter material layer is arranged on supporting plate; On supporting plate, offer several through holes.
As preferably, ceramic aggregate biological filter material layer comprises one or both mixing of varigrained mineral haydite or shell haydite.
As preferably, in ceramic aggregate biological filter material layer, the haydite packing height that particle diameter is 6-15mm is 3-5cm, and the haydite packing height that particle diameter is 3-6mm is 10-20cm.
As preferably, landscape plant comprises emergent, floating plant or submerged plant, and hydrocoles mainly contains fish, mollusk or Amphibians.
As preferably, being nested with the water outlet communicating with water collecting dike is V-notch weir.
As preferably, the end of aeration tube is provided with a plurality of aeration heads.
Beneficial effect of the present invention is as follows:
The present invention is directed to and in wastewater treatment process, have the problems such as landscape effect is poor, peculiar smell serious, sludge creation amount is large, a kind of technique combinations such as active sludge, bacteria bed and landscape wetland that utilize have been developed, exploitation active sludge-bacteria bed-landscape ecological sewage water treatment method and system; Method and system of the present invention is for the treatment of sanitary sewage, organic waste water and earth's surface polluted-water etc., have simple in structure, running cost is low, ammonia nitrogen and COD clearance is high, by approach such as " plant are joined choosing, view is built by laying bricks or stones ", realize combination and the mutual supplement with each other's advantages of landscape ecological and sewage disposal technology.
Device of the present invention is usingd ordinary ceramsite, shell haydite etc. as main raw material, in activated sludge tank, design bacteria bed, and in filter bed, realize microbial immobilized, landscape plant root system and fix, aeration disperses the functions such as oxygenation, and the landscape ecological Sewage treatment systems of design, by means such as " plant are joined choosing, view is built by laying bricks or stones ", research and development and physical environment, humanistic environment leisure landscape style that adapt, that there is high Aesthetic Standards sewage treatment process.When obtaining high standard water quality, the drawbacks such as natural treatment system floor space is large, residence time is long, peculiar smell is large have been avoided.
Select mixed bed haydite and shell biological ceramic particle, its surface is conducive to the load of long nitrifier of generation cycle, and form anaerobic environment, the carrying out that is conducive to anti-nitration reaction, be conducive to the denitrification process in sewage disposal, haydite is after grating, and the water body being conducive to after the fixing root system without native emergent, floating plant, filtration is conducive to hydrocoles growth.Sewage disposal and artificial swamp are combined, and create an efficient sewage treatment process, comprised purification, filter, absorb, nitrification and denitrification, anaerobic and aerobic decomposition course, and integrated being arranged in a reactive tank (being nested with), guarantee in During Process of Long-term Operation, in reactive tank, be conducive to the stable growth metabolism of nitrifier, system of the present invention is specially adapted to sanitary sewage, distributing country sewage, the processing of polluted surface water body, have simple in structure, manufacture and running cost are low, the strong ammonia nitrogen removal frank of nitrification activity is high, convenient management, the advantages such as social benefit is good.And by landscape design and the configuration of plant, realize the harmony of landscape ecological and sewage disposal.
Method and system of the present invention has higher ammonia nitrogen and COD removal efficiency to the processing of sanitary sewage; in ceramic aggregate biological filter material layer; there is certain oxygen-starved area; can provide anaerobic environment for the follow-up nitration reaction stage; shell biological ceramic particle also can provide sufficient basicity; make water outlet maintain stable pH value scope; and the complete mixing flow itself having advantages of and plug flow reactor combination; active sludge district is complete mixing flow reactor; ceramic aggregate biological filter material layer is plug-flow reactor, realizes the combination of two kinds of high efficiency reactors.In ceramic aggregate biological filter material layer, between ceramic aggregate biological filter material layer and water collecting dike, there is certain clear water zone simultaneously, be conducive to the growth of fancy fishes, and realize ornamental value.By the acting in conjunction of active sludge district and ceramic aggregate biological filter material layer, oxygen utilization rate increases substantially, and has greatly improved aerobic nitrification efficiency.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of system of the present invention;
Fig. 2 is water inlet and the delivery turbidity variation diagram of embodiment;
Fig. 3 is water inlet and the water outlet pH figure of embodiment;
Fig. 4 is the Inlet and outlet water ammonia nitrogen concentration variation diagram of embodiment;
Fig. 5 is the Inlet and outlet water COD change in concentration figure of embodiment;
In figure: the 1st, outer nested, the 2nd, be nested with, the 3rd, water inlet pipe, the 4th, aeration tube, the 5th, aeration head, the 6th, ceramic aggregate biological filter material layer, the 7th, water collecting dike, the 8th, landscape plant, the 9th, hydrocoles.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Active sludge-bacteria bed-landscape ecological Sewage treatment systems comprises activated sludge tank, ceramic aggregate biological filter material layer, landscape plant, hydrocoles, water inlet pipe stretches into activated sludge tank, pending water flows into activated sludge tank from water inlet pipe, aeration tube extends activated sludge tank bottom, the end of aeration tube is provided with a plurality of aeration heads, aeration tube communicates with atmosphere, and activated sludge tank carries out aeration by aeration tube; Ceramic aggregate biological filter material layer is by being nested with unsettled being arranged in activated sludge tank, and the bottom surface being nested with is provided with supporting plate, and ceramic aggregate biological filter material layer is arranged on supporting plate; On supporting plate, offer several through holes, eyelet equivalent diameter is about 0.6-1cm, is nested with the water outlet communicating with water collecting dike and adopts V-notch weir to carry out even water outlet.Ceramic aggregate biological filter material layer surface is covered with microbial film, and the root system of landscape plant is fixed in ceramic aggregate biological filter material layer; Be nested with top and be provided with water collecting dike, purify waste water from being nested with inflow water collecting dike, then carry out water outlet.
It (is traditional ordinary ceramsite that the present invention's wound schematically adopts varigrained mineral haydite, comprise water treatment haydite) or one or both of shell haydite mix as biomembranous carrier, and for the fixing root system system of landscape plant, realize multi-functional unification.Ceramic aggregate biological filter material layer comprises large-scale haydite (particle diameter 6-15mm) packing height 3-5cm, medium grain haydite (particle diameter 3-6mm) packing height 10-20cm.
The structure of landscape ecosystem in the present invention, landscape plant mainly contains emergent, floating plant and the submerged plants such as cyperus alternifolius, cattail, money algae, Hai Shou, and hydrocoles mainly contains bright and beautiful carp, goldfish, snail etc.
The flow process of a kind of active sludge-bacteria bed-landscape ecological sewage water treatment method of the present invention is: pending water is promoted and entered into aerating activated sludge pond by peristaltic pump, go through a series of biopurifications of Microbial Communities in Activated Sludge, through ceramic aggregate biological filter material layer, filter again, the microbial film on ceramic aggregate biological filter material layer surface further purifies the pollutent in water, in ceramic aggregate biological filter material layer, plant landscape plant, by the fixing high-effective microorganism of root system of plant, and by plant utilization, realize utilization and the removal of the nitrogen and phosphorus pollutants in water body, purify waste water as the landscape water body of fancy fishes, fish have been formed, plant, microbial film, the diversified ecosystem of active sludge, this device is in purifying water body, landscape ecosystem is provided.
Embodiment
As shown in Figure 1, the present invention is by outer nested 1 (for activated sludge tank is set) (area 40cm * 40cm, height 40cm) be nested with 2 (area 35cm * 35cm, bottom relative level 25cm) two portions formation.
Outer nested 1 is provided with water inlet pipe 3, aeration tube 4.The outlet of water inlet pipe 3 is arranged on activated sludge tank inside, and aeration tube 4 is positioned over activated sludge tank bottom, and aeration tube 4 is by the external gas blower of airduct, and the end of aeration tube 4 is provided with a plurality of aeration heads 5.
Be nested with in 2, supporting plate is located at and is nested with 2 bottoms, and supporting plate is provided with some through holes (area 1cm * 1cm), is nested with 2 inwall and is provided with water collecting dike 7 (with respect to supporting plate, height of weir 25cm).
The present invention organically combines active sludge, biological filtering layer, landscape plant 8, fancy fishes, combines together.Outer nested 1 bottom is active sludge district, and this is the main removal region of organic cod and BOD in sewage, and a large amount of free microorganism of having grown in this section, realizes efficient removal to organism and part nitrogen-containing pollutant.In ceramic aggregate biological filter material layer 6 parts; selected ordinary ceramsite and shell haydite mixed bed as biomembranous carrier; it has coarse surface and has the possibility as biofilm carrier, and confirms that through test coarse haydite surface is applicable to the growth of nitrobacteria and denitrifying bacterium very much.
The process of landscape ecological-shell haydite sewage water treatment method is: pending water enters into aeration tank by water pump lifting, go through a series of biopurifications of Microbial Communities in Activated Sludge, through ceramic aggregate biological filter material layer 6, filter again, the microbial film on ceramic aggregate biological filter material layer 6 surfaces further purifies the pollutent in water, after purifying, water body is as the landscape water body of fancy fishes, formed the diversified ecosystem of hydrocoles 9 (as fish), landscape plant 8, microbial film, active sludge, this device, in purifying water body, provides landscape ecosystem.
Fig. 2, Fig. 3 and Fig. 4 are respectively reaction unit to influent ammonium concentration and COD concentration removal effect comparison diagram.Combination process is 94.94% to the average removal rate of ammonia nitrogen; To the average removal rate of COD, be 92.72%.
Above-described embodiment is only for the present invention is described, and not as limitation of the invention.So long as according to technical spirit of the present invention, to above-described embodiment change, modification etc. all will drop in the scope of claim of the present invention.
Claims (8)
1. active sludge-bacteria bed-landscape ecological sewage water treatment method, is characterized in that,
Pending water enters into the activated sludge tank of aeration, goes through the biopurification of Microbial Communities in Activated Sludge, then filters through ceramic aggregate biological filter material layer, and the microbial film on ceramic aggregate biological filter material layer surface further purifies the pollutent in water;
In ceramic aggregate biological filter material layer, plant landscape plant, by root system of plant fixation of microbe, and utilize and remove the nitrogen and phosphorus pollutants in pending water by the mode of plant utilization, be purified water;
The integral part purify waste water, hydrocoles, landscape plant, microbial film, activated sludge tank becoming landscape ecosystem.
2. active sludge-bacteria bed-landscape ecological Sewage treatment systems, it is characterized in that, comprise activated sludge tank, ceramic aggregate biological filter material layer, landscape plant, hydrocoles, water inlet pipe stretches into activated sludge tank, pending water flows into activated sludge tank from water inlet pipe, aeration tube extends activated sludge tank bottom, and aeration tube communicates with atmosphere, and activated sludge tank carries out aeration by aeration tube; Ceramic aggregate biological filter material layer is by being nested with unsettled being arranged in activated sludge tank, and ceramic aggregate biological filter material layer surface is covered with microbial film, and the root system of landscape plant is fixed in ceramic aggregate biological filter material layer; Be nested with top and be provided with water collecting dike, purify waste water from being nested with inflow water collecting dike, then carry out water outlet.
3. active sludge-bacteria bed according to claim 2-landscape ecological Sewage treatment systems, is characterized in that, the bottom surface being nested with is provided with supporting plate, and ceramic aggregate biological filter material layer is arranged on supporting plate; On supporting plate, offer several through holes.
4. active sludge-bacteria bed according to claim 3-landscape ecological Sewage treatment systems, is characterized in that, ceramic aggregate biological filter material layer comprises one or both mixing of varigrained mineral haydite or shell haydite.
5. active sludge-bacteria bed according to claim 3-landscape ecological Sewage treatment systems, is characterized in that, in ceramic aggregate biological filter material layer, the haydite packing height that particle diameter is 6-15mm is 3-5cm, and the haydite packing height that particle diameter is 3-6mm is 10-20cm.
6. active sludge-bacteria bed according to claim 2-landscape ecological Sewage treatment systems, is characterized in that, landscape plant comprises waterplant or submerged plant, and hydrocoles mainly contains fish, mollusk or Amphibians.
7. active sludge-bacteria bed according to claim 2-landscape ecological Sewage treatment systems, is characterized in that, being nested with the water outlet communicating with water collecting dike is V-notch weir.
8. active sludge-bacteria bed according to claim 2-landscape ecological Sewage treatment systems, is characterized in that, the end of aeration tube is provided with a plurality of aeration heads.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104512967A (en) * | 2014-12-24 | 2015-04-15 | 哈尔滨工业大学 | Cooperatively-intensified denitrifying and dephosphorizing ecological sewage treatment device and water purifying method |
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| CN102863081A (en) * | 2011-07-08 | 2013-01-09 | 李鸿惠 | Three-dimensional ecological deodorization dephosphorization denitrification method as well as device and application |
| CN103435156A (en) * | 2013-06-04 | 2013-12-11 | 深圳市地大东江环境研究院 | Low-energy and intelligent three-dimensional ecological external circulation nitrification method and apparatus |
| CN203999114U (en) * | 2014-07-14 | 2014-12-10 | 华侨大学 | A kind of active sludge-bacteria bed-landscape ecological Sewage treatment systems |
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- 2014-07-14 CN CN201410333385.3A patent/CN104098175A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102863081A (en) * | 2011-07-08 | 2013-01-09 | 李鸿惠 | Three-dimensional ecological deodorization dephosphorization denitrification method as well as device and application |
| CN103435156A (en) * | 2013-06-04 | 2013-12-11 | 深圳市地大东江环境研究院 | Low-energy and intelligent three-dimensional ecological external circulation nitrification method and apparatus |
| CN203999114U (en) * | 2014-07-14 | 2014-12-10 | 华侨大学 | A kind of active sludge-bacteria bed-landscape ecological Sewage treatment systems |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104512967A (en) * | 2014-12-24 | 2015-04-15 | 哈尔滨工业大学 | Cooperatively-intensified denitrifying and dephosphorizing ecological sewage treatment device and water purifying method |
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Application publication date: 20141015 |
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