CN203545777U - Biological aerated filter - Google Patents
Biological aerated filter Download PDFInfo
- Publication number
- CN203545777U CN203545777U CN201320689226.8U CN201320689226U CN203545777U CN 203545777 U CN203545777 U CN 203545777U CN 201320689226 U CN201320689226 U CN 201320689226U CN 203545777 U CN203545777 U CN 203545777U
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- filler
- tank body
- baf
- biological
- biological tank
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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
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- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model discloses a biological aerated filter. The biological aerated filter comprises a biological pool body, a plurality of supports, an aeration plate and fillers, wherein the supports are uniformly distributed in the biological pool body in the horizontal direction; the fillers are sludge-based materials with nitrogen and phosphorus removal and biofilm formation reinforcement performances and are hung on each support arranged in the horizontal direction; the biological aerated filter adopts the water feeding pattern of lateral drop and the lateral bottom water outflow pattern; the aeration plate is arranged at the bottom of the biological pool body. The novel biological aerated filter can achieve the sustainable cycle processes of nitrogen and phosphorus adsorption, biofilm formation, bio-regeneration and nitrogen and phosphorus adsorption.
Description
Technical field
The utility model relates to a kind of sewage disposal device, particularly relates to a kind of BAF.
Background technology
In the BAF unit of processing for micropollutant water, be provided with filler, make a part of microorganic adhesion on filler, form microbial film, another portion grows in water with the form of the cotton-shaped suspension of active sludge.Existing aerating biological filter pool filler, the function without adsorption of nitrogen phosphorus, to the removal of nitrogen phosphorus, only rely on material surface to form biological action and the regular spoil disposal after microbial film, and the biofilm formation time is longer, poor to the variation adaptive faculty of micropollutant water water quantity and quality.
Utility model content
The purpose of this utility model is to provide a kind of BAF in order to solve above-mentioned technical problem.
The technical solution of the utility model
A BAF, comprises biological tank body, is positioned at the equally distributed a plurality of supports of biological tank body horizontal direction, aeration plate and filler;
Described filler is the sludge based material with denitrogenation dephosphorizing and strengthening carrier surface forming biofilm property of cube shaped, it hangs on each support of horizontal direction layout, and on each support, the 1-1.5 of the filler along continuous straight runs length of side that the spacing at adjacent two filler centers is cube shaped doubly;
Described horizontal direction is arranged and is comprised that vertical levels is arranged and transverse horizontal is arranged;
Distance between every adjacent two supports that wherein vertical levels is arranged is vertically 1.5-2 times of the length of side of cube shaped filler;
Distance between every adjacent two supports that transverse horizontal is arranged is 1.5-2 times of the cube shaped filler along continuous straight runs length of side;
Uppermost support to the distance at biological tank body top be cube shaped filler vertically the length of side 1-2 doubly;
Nethermost support to the distance of biological tank body bottom be cube shaped filler vertically the length of side 2-3 doubly;
Described BAF adopts the water intake mode of side direction drop, side direction bottom water-out manners, and aeration plate is positioned at the bottom of biological tank body.
Technique effect of the present utility model
A kind of BAF of the present utility model, due to filler used have denitrogenation dephosphorizing and strengthening carrier surface forming biofilm property sludge based material, this sludge based mechanical strength is good, there is good denitrogenation dephosphorizing and strengthening carrier surface forming biofilm property, high adsorption capacity, specific surface area is larger, suitable microbial growth, be attached to its surperficial biological activity high, mass-transfer efficiency is high.Sludge based material is evenly hung and is distributed in biological filter, guarantee that sewage all fully contacts with it, farthest bring into play its denitrogenation dephosphorizing performance, shorten the biofilm formation time, reduce aeration time, compare with traditional technology, stable effluent quality, energy consumption is low, and Operation and Maintenance is simple.
Further, a kind of BAF of the present utility model, because filler used is that the sludge based material with denitrogenation dephosphorizing and strengthening carrier surface forming biofilm property can recover absorption property by bio-regeneration effect, can be recycled, reduce the cost of BAF sewage disposal, made stable effluent quality good simultaneously.
Further, BAF of the present utility model, because filler sludge based material used has good absorption property to nitrogen phosphorus, adsorb saturated after, the a large amount of nitrogen and phosphorus pollutantses of its surface enrichment, for microorganism provides abundant nutritive substance, in starting material, there is the sludge components of containing simultaneously, can play the effect of strengthening biofilm, thereby shorten the biofilm formation time, reduce aeration time, after the stable formation of microbial film, microbial film can be removed the nitrogen and phosphorus pollutants in sludge based material surface and water simultaneously, sludge based material is carried out to biology in situ regeneration, recover the performance of sludge based material adsorption of nitrogen phosphorus, therefore can realize " adsorption of nitrogen phosphorus-formation microbial film-bio-regeneration-adsorption of nitrogen phosphorus " sustainable working cycle, be a kind of novel BAF.
Accompanying drawing explanation
The front view of Fig. 1, BAF structural representation, wherein 1 is that biological tank body, 2 is that support, 3 is aeration plate for having the sludge based material, 4 of denitrogenation dephosphorizing and strengthening carrier surface forming biofilm property;
The vertical view of Fig. 2, BAF structural representation, wherein 1 is that biological tank body, 2 is that support, 3 is aeration plate for having the sludge based material, 4 of denitrogenation dephosphorizing and strengthening carrier surface forming biofilm property.
Embodiment
Below by specific embodiment, also by reference to the accompanying drawings the utility model is further set forth, but do not limit the utility model.
The sludge based material that the utility model is used, specifically see: mud is produced novel environment friendly synthetic materials experimental study, Wu Lingling, Li Suhui, Xu Zhihua etc., energy research and information, Vol.28, No.3, 2012, the 126th page, its preparation method is with mud, zeolite, cement is starting material, calculate in mass ratio, be zeolite: mud: the ratio that cement is 2:0.05:1 is evenly mixed, add water and cement blowing agent, wherein the add-on of water is mud, zeolite, cement total mass 40%, the add-on of cement blowing agent be the water that adds volume 1/60, after continuing to be uniformly mixed and after extrusion molding, in Indoor Natural, dry 1d, put into again water maintenance 1d, obtain sludge based material, in embodiment of the present utility model, be preferably the regular cube type of 70mm * 70mm * 70mm.
A BAF, comprises biological tank body 1, is positioned at the equally distributed a plurality of supports 2 of biological tank body horizontal direction, aeration plate 4 and filler 3, and its front view and vertical view are respectively as shown in Figure 1 and Figure 2;
The sludge based material with denitrogenation dephosphorizing and strengthening carrier surface forming biofilm property of the regular cube shape that described filler 3 is 70mm * 70mm * 70mm, it hangs on each support 2 of horizontal direction layout, and on each support, the spacing at adjacent two filler centers is 70-105mm;
Described horizontal direction is arranged and is comprised that vertical levels is arranged and transverse horizontal is arranged;
Distance between every adjacent two supports that vertical levels is arranged and transverse horizontal is arranged is respectively 105-140mm, 105-140mm; Uppermost support is 70-140mm to the distance at biological tank body top, and nethermost support is 140-210mm to the distance of biological tank body bottom;
Described BAF adopts the water intake mode of side direction drop, side direction bottom water-out manners, and aeration plate 4 is positioned at the bottom of biological tank body 1.
application Example 1
Processing by a kind of BAF of embodiment 1 for micro-pollution Landscape Water body, at dissolved oxygen, it is 1mg/L left and right, hydraulic detention time 1h, aeration time is 1h every day, under the condition of natural membrane, biofilm development in order, the biofilm formation time is about 25 days, the ammonia nitrogen concentration of its water outlet is 1.8-2.5mg/L, the total phosphorus concentration 0.2-0.3mg/L of water outlet, all reach the water quality standard 5mg/L of ammonia nitrogen concentration in urban sewage reutilization-water for scenic environment use water quality standard (GB/T 18921-2002), the water quality standard 1mg/L of total phosphorus concentration
.
control Example 1
Changing the filler in the BAF in embodiment into common polyvinyl chloride filler is a kind of filler conventional in prior art, and for the processing with the same micro-pollution Landscape Water body of Application Example 1, under the condition identical with Application Example 1, because polyvinyl chloride filler does not have the function of denitrogenation dephosphorizing, biofilm development situation is poor, the biofilm formation time is about 40 days, the ammonia nitrogen concentration of its water outlet is 4.2-5.5mg/L, substantially reach the water quality standard 5mg/L of ammonia nitrogen concentration in urban sewage reutilization-water for scenic environment use water quality standard (GB/T 18921-2002), but the total phosphorus concentration of water outlet is 1.2-1.5mg/L, cannot reach the water quality standard 1mg/L of total phosphorus concentration in urban sewage reutilization-water for scenic environment use water quality standard (GB/T 18921-2002).
In sum, by above-mentioned Application Example 1 and control Example 1, can find out, the utility model is using the sludge based material with denitrogenation dephosphorizing and strengthening carrier surface forming biofilm property as the BAF of filler during for the treatment of micro-pollution Landscape Water body, compare with the BAF of use conventional filler, there is biofilm development good, the biofilm time is short, stable effluent quality, nitrogen, phosphorus concentration all reaches the advantages such as urban sewage reutilization-water for scenic environment use water quality standard (GB/T 18921-2002), shown that thus a kind of BAF of the present utility model has good treatment effect to processing micro-pollution Landscape Water body.
The above is only preferred case study on implementation of the present utility model, it should be noted that, for the those skilled in the art in this field, is not departing under prerequisite of the present utility model the improvement of having done or supplement and to be all considered as protection domain of the present utility model.
Claims (2)
1. a BAF, comprise biological tank body, be positioned at the equally distributed a plurality of supports of biological tank body horizontal direction, aeration plate and filler, it is characterized in that the sludge based material with denitrogenation dephosphorizing and strengthening carrier surface forming biofilm property that described filler is cube shaped, it hangs on each support of horizontal direction layout, and on each support, the 1-1.5 of the filler along continuous straight runs length of side that the spacing at adjacent two filler centers is cube shaped doubly;
Described horizontal direction is arranged and is comprised that vertical levels is arranged and transverse horizontal is arranged;
Distance between every adjacent two supports that vertical levels is arranged is vertically 1.5-2 times of the length of side of cube shaped filler;
Distance between every adjacent two supports that transverse horizontal is arranged is 1.5-2 times of the cube shaped filler along continuous straight runs length of side;
Uppermost support to the distance at biological tank body top be cube shaped filler vertically the length of side 1-2 doubly;
Nethermost support to the distance of biological tank body bottom be cube shaped filler vertically the length of side 2-3 doubly;
Described BAF adopts the water intake mode of side direction drop, side direction bottom water-out manners, and aeration plate is positioned at the bottom of biological tank body.
2. a kind of BAF as claimed in claim 1, is characterized in that described filler is the sludge based material with denitrogenation dephosphorizing and strengthening carrier surface forming biofilm property of regular cube shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320689226.8U CN203545777U (en) | 2013-11-05 | 2013-11-05 | Biological aerated filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320689226.8U CN203545777U (en) | 2013-11-05 | 2013-11-05 | Biological aerated filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203545777U true CN203545777U (en) | 2014-04-16 |
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ID=50463923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320689226.8U Expired - Fee Related CN203545777U (en) | 2013-11-05 | 2013-11-05 | Biological aerated filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203545777U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110683713A (en) * | 2019-10-16 | 2020-01-14 | 淮阴师范学院 | Ecological treatment system for rural decentralized kitchen sewage |
-
2013
- 2013-11-05 CN CN201320689226.8U patent/CN203545777U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110683713A (en) * | 2019-10-16 | 2020-01-14 | 淮阴师范学院 | Ecological treatment system for rural decentralized kitchen sewage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20151105 |
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| EXPY | Termination of patent right or utility model |