CN203794703U - Bearing-layer-free biological aerated filter - Google Patents
Bearing-layer-free biological aerated filter Download PDFInfo
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- CN203794703U CN203794703U CN201420117991.7U CN201420117991U CN203794703U CN 203794703 U CN203794703 U CN 203794703U CN 201420117991 U CN201420117991 U CN 201420117991U CN 203794703 U CN203794703 U CN 203794703U
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- filter
- gas distribution
- baf
- backwash
- distribution system
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Abstract
The utility model discloses a bearing-layer-free biological aerated filter. The filter body of the biological aerated filter is internally provided with a filter material layer made of a ceramic filter material, an integral filter plate, a plurality of filter heads penetrating through the integral filter plate, a buffer water distribution zone and a gas distribution system, wherein the filter material layer, the integral filter plate, filter heads and the gas distribution system are sequentially arranged from top to bottom in the bearing-layer-free biological aerated filter body.
Description
Technical field
The utility model relates to sewage treatment area, more specifically relates to a kind of BAF.
Background technology
Tradition BAF is mainly comprised of pond, filter tank body, filtrate, supporting layer, water distribution system, gas distribution system, back-purge system and outlet system, wherein supporting layer is mainly in order to support filtrate, prevent that filtrate runs off and stops up filter, can also keep back flushing to stablize simultaneously and carry out.This external traditional BAF operated by rotary motion has two cover gas distribution systems, a set of is aeration system gas distribution system, a set of is backwash gas distribution system, general technology gas distribution system adopts hole membranes aerating apparatus, be arranged in supporting layer, and backwash gas distribution system adopts strainer head, be embedded in filter plate in advance.
, there is following shortcoming in the above-mentioned this arrangement form of tradition BAF:
First, the conventional material of supporting layer is cobble or magnetite, for guaranteeing the stable of supporting layer, and the homogeneity of water distribution is played to abundant effect, require material to there is good physical strength and chemical stability, shape should approach circular as far as possible, generally selects pebbles as supporting layer in engineering, is highly about 0.3～0.4m, and the general single lattice area of BAF is not more than 100m2, lattice number is more, and pond is high between 6.5～7.0m, and arranging of supporting layer improved Civil Cost impact.
Secondly, because gas distribution system has two covers, be located at respectively in supporting layer and filter plate, thereby for later stage maintenance, the corresponding raising of frequency of maintenance and and the workload of maintenance also become large.
Utility model content
In order to solve and alleviate the problems referred to above of traditional BAF, the utility model proposes a kind of without supporting layer BAF.
According to an aspect of the present utility model, proposed a kind ofly without supporting layer BAF, in the pond body of this BAF, be furnished with: the filter material layer being formed by ceramic grain filter; Whole filter plate; Run through a plurality of filters that described whole filter plate is arranged; Buffering water distributing area; And gas distribution system, described without supporting layer BAF in, described filter material layer, described whole filter plate, described filter and described gas distribution system are arranged in the described pond body without supporting layer BAF from top to bottom successively.
According to second aspect of the present utility model, described without supporting layer BAF in, described filter is adjustable anti-blocking strainer head.
According to the third aspect of the present utility model, described without supporting layer BAF in, described gas distribution system is connected to for the technique inlet pipe of aeration with for the backwash gas distribution pipe of backwash by inlet manifold.
Preferably, described without supporting layer BAF in, the filtrate that described filter material layer adopts is high-intensity ceramic grain filter.
Brought favourable part of the present utility model is at least following aspect:
By application according to of the present utility model without supporting layer BAF, can save construction costs, reduce later stage maintenance engineering amount and maintenance difficulty, also can reduce aeration biological filter chamber facility cost and running cost simultaneously.
Accompanying drawing explanation
With reference to the accompanying drawing of enclosing, the more object of the utility model, function and advantage will be illustrated by the following description for embodiment, in accompanying drawing:
Fig. 1 shows the structural representation without supporting layer BAF according to an embodiment of the present utility model.
Description of reference numerals:
100, BAF; 101, water inlet manifold; 102, distribute water channel; 103, divide water inlet pipe; 104, backwash water inlet pipe; 105, whole filter plate; 106, buffering water distributing area; 107, filter material layer; 108, adjustable anti-block strainer head; 109, backwash discharge channel; 110, outlet canal; 111, rising pipe; 112, backwash water shoot; 113, technique inlet pipe; 114, backwash inlet pipe; 115, total inlet channel; 116, gas distribution system; 117,118,119,120,121: valve; 130, inlet manifold.
Embodiment
By reference to one exemplary embodiment, the purpose of this utility model and function and will be illustrated for realizing the method for these objects and function.Yet the utility model is not limited to following disclosed one exemplary embodiment; Can to it, be realized by multi-form.The essence of specification sheets is only to help various equivalent modifications Integrated Understanding detail of the present utility model.
Hereinafter, by take the BAF of upward flowing type, be example, with reference to accompanying drawing, an embodiment of the present utility model is described.
Fig. 1 is the structural representation without supporting layer BAF according to an embodiment of the present utility model.
As shown in the figure, in the pond body without supporting layer BAF 100 (hereafter biological filter), be furnished with: the filter material layer 107 being formed by ceramic grain filter; Whole filter plate 105; Run through a plurality of filters 108 that described whole filter plate 105 is arranged; Buffering water distributing area 106; And gas distribution system 116.
Gas distribution system 16, for common used gas distribution system or other suitable gas distribution system in sewage treatment area, is not inventive concept of the present utility model place, thereby does not repeat them here.
Preferably, in described biological filter, filter can be adjustable anti-blocking strainer head.Preferably, the adjustable anti-block strainer head that can select Chinese patent " adjustable long-handled filter head " (ZL 200920179151.2) to mention.
As shown in Figure 1, according to of the present utility model without supporting layer BAF in, gas distribution system 116 is connected to for the technique inlet pipe 113 of aeration with for the backwash gas distribution pipe 114 of backwash by inlet manifold 130.
Preferably, the filtrate adopting in filter material layer 107 is high-intensity ceramic grain filter.
Below, with reference to accompanying drawing, further describe according to of the present utility model without supporting layer BAF.As shown in Figure 1, the BAF that biological filter 100 is in the present embodiment upward flowing type, so filter material layer 107, whole filter plate 105, filter 108 and gas distribution system 116 are arranged in the pond body without supporting layer BAF 100 from top to bottom successively.Degree of it will be appreciated by those skilled in the art that, above-mentioned decoration form can suitably change according to water-out manners.
In filter tank 100, be provided with aerating apparatus and filtration unit, arranged successively from top to bottom filter material layer 107, whole filter plate 105 and buffering water distributing area 106 etc.A plurality of adjustable anti-block strainer heads 108 run through and are arranged on filter plate 105, and buffering is furnished with gas distribution system 116 in water distributing area 106, between whole filter plate 105 and the bottom of biological filter 100, and spaced apart with described filter 108.
Technique inlet pipe 113 is all connected with gas distribution system 116 by inlet manifold 130 with backwash inlet pipe 114.And be respectively equipped with valve 120 and 121 in technique inlet pipe 113 and backwash inlet pipe 114.
Backwash discharge channel 109 is arranged in the outside of biological filter 100 and is close to it.Outlet canal 110 is placed in the outside of backwash discharge channel 109.Outlet canal 110 bottoms are connected with rising pipe 111, and backwash discharge channel 109 bottoms are connected with backwash water shoot 112, on this backwash water shoot 112, are provided with valve 119.
Distribute water channel 102 to be positioned at 100 outsides, filter tank.Total inlet channel 115 is positioned at the outside of distributing water channel 102.Water inlet manifold 101 is connected to total inlet channel 115, and a minute water inlet pipe 103 is provided with valve 117, and one end is connected to and distributes water channel 102, and the other end is connected to the buffering water distributing area 106 of biological filter 100.For being provided with the backwash water inlet pipe 104 of valve 118, be also connected to bottom, filter tank.
For the ease of those skilled in the art, understand the utility model, below in connection with example in Fig. 1, illustrate according to the workflow without supporting layer BAF of the present utility model.
A normal work period of BAF mainly comprises: fill phase, technique aeration phase, backwash stage (containing air purge and washing).
One, fill phase: sewage enters total inlet channel 115 from water inlet manifold 101, by weir overflow to distributing water channel 102, open the valve 117 on minute water inlet pipe 103, sewage enters buffering water distributing area 106 by a minute water inlet pipe 103, current are from bottom to top by filter 108 uniformly distributings, mud thing in sewage is by the microbiological deterioration of the inside when the filter material layer 107, and water outlet overflow is to outlet canal 110, then enters processing unit by rising pipe 111.
Two, technique aeration phase: the air that technique blower fan provides, by technique inlet pipe 113, enters gas distribution system 116, tolerance is assigned to buffering water distributing area 106 by this gas distribution system 116, then to filter material layer 107, carries oxygen-supplying amount by filter 108.
Technique aeration phase and fill phase are carried out simultaneously, and BAF needs to carry out backwash after operation for some time, removes aging microbial film, and the backwash stage is generally divided into air purge 10min, and air water is washed 15min altogether, washing 10min.
Three, the backwash stage: while starting backwash, generally need first close the valve 117 on minute water inlet pipe 103 and open the valve 119 on backwash water shoot 112, fast filter tank water level being fallen, opening the valve 121 in backwash inlet pipe 114, start backwash blower fan and carry out air purge, about 10min of air purge time; Then open the inlet valve on backwash water inlet pipe 104, open 1～2 recoil water pump and carry out combined water and air backwash, the time is about 15min.Close afterwards the valve in backwash inlet pipe 114 and technique inlet pipe 113, back flushing blower fan is out of service, carries out independent water flushing, and the time needing is about 10min, after completing, close the valve on backwash water inlet pipe 104 pump of cutting off the water, drainage is treated in valve 117 receptions of opening on minute water inlet pipe 103.Start to intake after 10 minutes, close the valve on backwash water shoot 112, complete the whole process of back flushing, system proceeds to normal filter.In whole air purge process, because gas distribution system is same set of, so technique blower fan and backwash blower fan move simultaneously.
Of the present utility model without supporting layer BAF, pond body load and height in the design of structure, have been reduced, saved construction costs, its technique gas distribution and backwash gas distribution are a cover system simultaneously, compare with two cover gas distribution systems, greatly reduce maintenance probability, during the equipment investment cost of saving, and backwash simultaneously, technique blower fan and backwash blower fan move simultaneously, compare with independent backwash blower fan system, the air quantity of backwash blower fan and power can reduce greatly, and then reduce system operation cost.
In conjunction with the explanation of the present utility model and the practice that disclose here, other embodiment of the present utility model are easy to expect and understand for those skilled in the art.Illustrate with embodiment and be only considered to exemplary, true scope of the present utility model and purport limit by claim.
Claims (3)
1. without a supporting layer BAF, it is characterized in that, in the pond body of this BAF, be furnished with:
The filter material layer being formed by ceramic grain filter;
Whole filter plate;
Run through a plurality of filters that described whole filter plate is arranged;
Buffering water distributing area; And
Gas distribution system;
Wherein said filter material layer, described whole filter plate, described filter and described gas distribution system are arranged in the described pond body without supporting layer BAF from top to bottom successively.
2. according to claim 1ly without supporting layer BAF, it is characterized in that, described filter is adjustable anti-blocking strainer head.
According to one of claim 1 or 2 Suo Shu without supporting layer BAF, described gas distribution system is connected to for the technique inlet pipe of aeration with for the backwash gas distribution pipe of backwash by inlet manifold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420117991.7U CN203794703U (en) | 2014-03-14 | 2014-03-14 | Bearing-layer-free biological aerated filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420117991.7U CN203794703U (en) | 2014-03-14 | 2014-03-14 | Bearing-layer-free biological aerated filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203794703U true CN203794703U (en) | 2014-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420117991.7U Expired - Fee Related CN203794703U (en) | 2014-03-14 | 2014-03-14 | Bearing-layer-free biological aerated filter |
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| Country | Link |
|---|---|
| CN (1) | CN203794703U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105668939A (en) * | 2016-03-30 | 2016-06-15 | 内蒙古工业大学 | Combined biofilter device and method for treating papermaking wastewater |
-
2014
- 2014-03-14 CN CN201420117991.7U patent/CN203794703U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105668939A (en) * | 2016-03-30 | 2016-06-15 | 内蒙古工业大学 | Combined biofilter device and method for treating papermaking wastewater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100192, No. 2, D District, 66 Xiao Dong Road, Beijing, Haidian District Patentee after: CSD ENVLITE (BEIJING) ENVIRONMENTAL ENGINEERING Co.,Ltd. Patentee after: CSD WATER SERVICE Co.,Ltd. Address before: 100192, No. 2, D District, 66 Xiao Dong Road, Beijing, Haidian District Patentee before: CSD ENVLITE (BEIJING) ENVIRONMENTAL ENGINEERING Co.,Ltd. Patentee before: ZHONGCHI (BEIJING) WATER OPERATION CO.,LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |