CN201801417U - High-efficiency aeration biological filter tank - Google Patents
High-efficiency aeration biological filter tank Download PDFInfo
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- CN201801417U CN201801417U CN2010205179759U CN201020517975U CN201801417U CN 201801417 U CN201801417 U CN 201801417U CN 2010205179759 U CN2010205179759 U CN 2010205179759U CN 201020517975 U CN201020517975 U CN 201020517975U CN 201801417 U CN201801417 U CN 201801417U
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Abstract
A high-efficiency aeration biological filter tank is provided with a water inlet tube at the lower part of the filter tank. The middle part is a filter material layer with a thickness of 2-3m. The top part of the filter material is provided with a filter material baffle plate which prevents loss of suspended filter material. Water outlet filter caps are uniformly equipped on the filter material baffle plate. An upper space of the filter material baffle plate is used as a water storage area of backwash space. The spaces at the bottom of the filter material layer and the bottom of the filter tank are used for the expansion of filter material in backwash regeneration. The lower part of the filter material layer is provided with a water inlet and distribution pipe. An aerobic area is provided above the filter material layer, and an anaerobic area or anoxic area is provided at the lower part of the filter material layer. A perforated aeration pipe is provided at a boundary between the aerobic area and the anaerobic area. The lower part of the anaerobic area is provided with a backwash air pipe and a mud discharge pipe. The bottom of the filter tank is provided with a deposition area and a mud discharge valve. A water outlet tank is provided at the most upper part of the filter tank. The high-efficiency aeration biological filter tank is used for secondary and tertiary treatment of domestic sewage and high-concentration organic wastewater. The National Bio and Agro-Defense Facility (NBAF) represents the following characteristics: high treatment load, high quality of outlet water, reduced occupation area, etc.
Description
Technical field
The utility model relates to a kind of high efficient aeration biological filter, can be widely used in the secondary, tertiary treatment of sewage, the waste water in fields such as municipal administration, printing and dyeing, chemical industry, pharmacy.
Background technology
In order to realize popularizing of environmental protection concept, reduce the input that corporate environment is administered, eliminate medium-sized and small enterprises drop into bottomless pit to Pollution abatement wrong understanding.Realize ecology, the human settlementsization of environment.Administer and safeguard environment also direct or indirect determining human future and can realize the target of Sustainable development.
Existing aeration biological filter device, major part all is large-scale treatment unit, the civil engineering input that needs early stage, operational efficiency is not high, the facility that major part is built up all is in idle state, know-how to the operations staff also has certain requirement simultaneously, thereby has limited its widespread use at sewage treatment area.
Summary of the invention
The utility model purpose is: propose a kind of high efficient aeration biological filter, be applicable to BAF (NBAF) technology, NBAF technology is nitrated for realizing in the secondary of sewage, tertiary treatment, the denitrification exploitation at first, and design philosophy is from active sludge A/O method.In the realization of concrete process form, it is key problem in technology-filtrate of BAF that this technology has been caught BAF, and has brought a series of process characteristic thus.
The high efficient aeration biological filter, it is characterized in that the bottom, filter tank is provided with water inlet pipe, the middle part is a filter material layer, thickness is 2～3m, the filtrate baffle plate that prevents that suspended filter material runs off is equipped with at the filtrate top, water outlet filter cap evenly is installed on the filtrate baffle plate, and filtrate baffle plate upper space is used as the storage area of backwashing water, the usefulness of filtrate expansion when the space of the bottom of filter material layer and bottom, filter tank gives over to back flushing regeneration.The filter material layer bottom is provided with into water water distributor 9, the top of filter material layer is aerobic zone, the lower, anaerobic of filter material layer or oxygen-starved area, be provided with boring aeration pipe at aerobic zone and anaerobic zone separation surface, the anaerobic zone bottom is provided with the back flushing blast main, and shore pipe, the bottom in filter tank is settling region and mud valve, effluent trough is located at the topmost in filter tank.
The filter tank airing system divides two circuits, places the process air pipe in the filter material layer to be used for the technology aeration, and filter material layer is divided into two districts up and down: top is aerobic zone, and the bottom is the oxygen-starved area.According to different raw water qualities, processing intent and requirement, the height of filter material layer can change, and aerobic zone, anaerobic zone proportion also can be different.The airline of bottom, filter tank is the back flushing blast main.
From the angle of Principles of Chemical Engineering, the improvement of filtrate technology is the improvement to the inside reactor structure, is the basic means of strengthening mass transfer, improving hydraulics, biochemical reaction condition in the reactor, is the fundamental way that improves load.In BAF technology, filtrate plays a part bio-carrier on the one hand, for microbial film provides good growing environment, also plays filtering effect on the other hand.In fact, the quality of BAF performance depends on the characteristic of filtrate to a great extent.What BAF NBAF adopted is the spherical organic filtrate of proportion less than water, and particle diameter 2～5mm has physical strength and chemical stability preferably, growing environment is being provided for microorganism, holds back SS, is promoting aspect such as air water uniform mixing that certain advantage is arranged.
At present, the filtrate that is used for BAF has many kinds, main sinking and floated two kinds of dividing, and suspended filter material is better than the sinking filtrate at aspects such as holding back SS, degraded COD, NBAF adopts suspended filter material to be easy to back flushing by contrast, in conjunction with its concrete operation scheme, just, reduce the back flushing water yield and created condition for NBAF has high processing power, prolongs the cycle of operation.
The utility model bio-reactor is periodic duty, and back flushing finishes is a complete cycle from beginning to be filtered to, and detailed process is as follows: enter the bottom, filter tank through pretreated sewage by the filter tank water inlet pipe, and the oxygen-starved area of the filter material layer of upwards at first flowing through.Back flushing this moment blast main is in closing condition.In the oxygen-starved area, on the one hand, denitrifying bacterium utilizes the organism in the water inlet as carbon source the NO3-N in the water inlet of filter tank to be converted into N2, realizes denitrification denitrogenation.On the other hand, the oxygen degraded BOD that generates in dissolved oxygen in the microorganism utilization water inlet on the filtrate and the denitrification process, simultaneously, SS also is trapped in the filter bed by filtrate and top microbial film absorption thereof by the materializing procedure of a series of complexity.Promptly entered aerobic zone behind the aeration tube of effluent stream in filter material layer through the oxygen-starved area processing, and continued upwards to flow through filter material layer with the air filled cavity uniform mixing.In the aqueous vapor uphill process, the microorganism on this district's filtrate utilizes the dissolved oxygen of transferring in the bubble in the water BOD that further degrades, and filter bed continues to remove SS, and the NH3-N in the sewage is converted into NO3-N, and nitration reaction takes place.Waste water is discharged the filter tank by the water outlet filter on the baffle plate of filter tank after the purification of outflow filter material layer.
Carry out along with filtering, because microbial film progressive additive in the filter material layer, SS constantly accumulates, water head loss by filtration progressively strengthens, under certain intake pressure, design discharge will can not get guaranteeing, promptly should enter back flushing regeneration this moment to remove excessive microbial film and SS in the filter bed, recover the processing power in filter tank.According to different dispositions, filter tank effluent index (as SS) also can become the control condition of back flushing by robot control system(RCS).
Alternately recoil of air water is adopted in back flushing, and backwashing water is the qualified discharge water that is stored in the top, filter tank, and the back flushing required air is from the back flushing tracheae of bottom, filter tank.The recoil regenerative process is as follows: close into water and process air; Water washes separately; Air washes separately; Then independent backwash of water and the independent backwash step of air hocket and repeat several times; At last once with water rinse.Backwashing water from top to bottom, filter material layer is subjected to down to expand to flow action, filter material layer dashes or gas is broken through in the journey at independent water, constantly expand and be compressed, simultaneously, between water, gas are to the fluid scouring of filtrate and filtering material particle mutually under the dual function of friction, microbial film, the SS that is trapped absorption separate with filtrate, and microbial film that washes and SS are rushed out the filter tank in rinsing.Back flushing mud is back to the settling system of filter tank preprocessing part.Filter tank after the regeneration enters the next cycle operation.Since normal filtration with when recoil water (flow) direction opposite, the high concentration sludge bottom the filter material layer is without whole filter bed, but with the fastest speed by the pond at the bottom of shore pipe leave the filter tank.
The beneficial effects of the utility model are: provide efficient, integrated, but the high efficient aeration biological filter of multipolarity automatic operating.Modularization, multiunit stage treatment can be carried out to the dirty waste water of different load, full-automatic unmanned operation on duty can be realized.To the internal system Maintenance free.Stable and reliable operation, entire equipment can realize batch production production, field assembly.
The technical process of bio-oxidation, filtration, precipitation, back flushing is integrated in the treatment unit of incorporate high efficient aeration biological filter, not only effectively reduced the spatial use, realize modular production simultaneously, need not civil engineering, reduced final user's civil engineering input.
Description of drawings
Fig. 1 is a structural representation of the present utility model
1 storage area, 2 filtrate baffle plates, 3 filter caps, 4 aerobic zones, 5 boring aeration pipes, 6 oxygen-starved areas, 7 back flushing blast mains, 8 water inlet motorized valves, 9 water inlet water distributors, 10 settling regions, 11 mud valves, 13 flushing intake valves, 14 effluent troughs.
Embodiment
NBAF basic structure as shown in Figure 1, filter tank bottom is provided with into water and shore pipe, the middle and upper part is a filter material layer, thickness is generally 2～3m, baffle plate is equipped with at the filtrate top, prevents the loss of suspended filter material.The water outlet filter evenly is installed on the baffle plate.The baffle plate upper space is as the storage area of backwashing water, and its height is decided according to the back flushing head.The usefulness of filtrate expansion when the space of filter material layer bottom bottom the filter tank gives over to back flushing regeneration.
The filter tank airing system divides two circuits, places the process air pipe in the filter material layer to be used for the technology aeration, and filter material layer is divided into two districts up and down: top is aerobic zone, and the bottom is the oxygen-starved area.According to different raw water qualities, processing intent and requirement, the height of filter material layer can change, and aerobic zone, anaerobic zone proportion also can be different.The airline of bottom, filter tank is the back flushing blast main.
The utility model can be selected single-stage or multiple-stage treatment pattern according to the different quality condition, realizes the stabilizing treatment of water quality.
Total system water inlet, backwash, draining, spoil disposal adopt electric device (valve) control, and electric device is realized the unattended operation of sequencing by the PLC of system time variable control.
Install inner filtrate and adopt the dynamic EPS filtrate of lightweight, have light weight, specific surface area big, can intercept, adsorb small dirt, easily flushing simultaneously; the operation certain hour can dynamically wash; realization recycles, and therefore has treatment effect efficiently, can realize not shutting down continuous operation.
Claims (5)
1. high efficient aeration biological filter, it is characterized in that the bottom, filter tank is provided with water inlet pipe, the middle part is a filter material layer, thickness is 2～3m, the filtrate baffle plate that prevents that suspended filter material runs off is equipped with at the filtrate top, water outlet filter cap evenly is installed on the filtrate baffle plate, and filtrate baffle plate upper space is used as the storage area of backwashing water, the usefulness of filtrate expansion when the space of the bottom of filter material layer and bottom, filter tank gives over to back flushing regeneration.The filter material layer bottom is provided with into water water distributor, the top of filter material layer is aerobic zone, the lower, anaerobic of filter material layer or oxygen-starved area, be provided with boring aeration pipe at aerobic zone and anaerobic zone separation surface, the anaerobic zone bottom is provided with the back flushing blast main, and shore pipe, the bottom in filter tank is settling region and mud valve, effluent trough is located at the topmost in filter tank.
2. high efficient aeration according to claim 1 biological filter is characterized in that: the filter tank airing system divides two circuits, and place the boring aeration pipe in the filter material layer that filter material layer is divided into two districts up and down: top is aerobic zone, and the bottom is the oxygen-starved area.
3. high efficient aeration according to claim 1 biological filter is characterized in that: aerobic zone, anaerobic zone proportion change to some extent.
4. high efficient aeration according to claim 1 biological filter is characterized in that: total system water inlet, backwash, draining, spoil disposal adopt motorized valve control.
5. high efficient aeration according to claim 1 biological filter is characterized in that: install inner filtrate and adopt the dynamic EPS filtrate of lightweight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205179759U CN201801417U (en) | 2010-09-03 | 2010-09-03 | High-efficiency aeration biological filter tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205179759U CN201801417U (en) | 2010-09-03 | 2010-09-03 | High-efficiency aeration biological filter tank |
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| Publication Number | Publication Date |
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| CN201801417U true CN201801417U (en) | 2011-04-20 |
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| CN2010205179759U Expired - Lifetime CN201801417U (en) | 2010-09-03 | 2010-09-03 | High-efficiency aeration biological filter tank |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351304A (en) * | 2011-09-09 | 2012-02-15 | 北京林业大学 | Novel biological aerated filter capable of solving backwashing problem |
| CN102583723A (en) * | 2012-03-23 | 2012-07-18 | 哈尔滨工业大学 | Local air-water reversing upflow biological aerated filter and sewage treatment method thereof |
| CN107473534A (en) * | 2017-10-11 | 2017-12-15 | 苏州和必尔斯电子科技有限公司 | A kind of sewage continous way biological purification plant |
| CN107973487A (en) * | 2017-11-14 | 2018-05-01 | 东华大学 | A kind of dyeing and finishing wastewater level treatment process and device |
| CN110066052A (en) * | 2019-05-30 | 2019-07-30 | 净化控股集团股份有限公司 | Integrated sewage processor |
| CN110845000A (en) * | 2019-12-16 | 2020-02-28 | 浙江大学 | High hydraulic load aeration biological filter with material-running prevention device |
| CN110980952A (en) * | 2019-12-26 | 2020-04-10 | 西安建筑科技大学 | Villages and small towns sewage infiltration pond |
| CN112939324A (en) * | 2019-12-10 | 2021-06-11 | 扬州市双龙工业设备安装有限公司 | Biological oxidation reactor |
-
2010
- 2010-09-03 CN CN2010205179759U patent/CN201801417U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351304A (en) * | 2011-09-09 | 2012-02-15 | 北京林业大学 | Novel biological aerated filter capable of solving backwashing problem |
| CN102583723A (en) * | 2012-03-23 | 2012-07-18 | 哈尔滨工业大学 | Local air-water reversing upflow biological aerated filter and sewage treatment method thereof |
| CN102583723B (en) * | 2012-03-23 | 2013-07-03 | 哈尔滨工业大学 | Local air-water reversing upflow biological aerated filter and sewage treatment method thereof |
| CN107473534A (en) * | 2017-10-11 | 2017-12-15 | 苏州和必尔斯电子科技有限公司 | A kind of sewage continous way biological purification plant |
| CN107973487A (en) * | 2017-11-14 | 2018-05-01 | 东华大学 | A kind of dyeing and finishing wastewater level treatment process and device |
| CN110066052A (en) * | 2019-05-30 | 2019-07-30 | 净化控股集团股份有限公司 | Integrated sewage processor |
| CN112939324A (en) * | 2019-12-10 | 2021-06-11 | 扬州市双龙工业设备安装有限公司 | Biological oxidation reactor |
| CN110845000A (en) * | 2019-12-16 | 2020-02-28 | 浙江大学 | High hydraulic load aeration biological filter with material-running prevention device |
| CN110845000B (en) * | 2019-12-16 | 2024-04-19 | 浙江大学 | High hydraulic load biological aerated filter with anti-running device |
| CN110980952A (en) * | 2019-12-26 | 2020-04-10 | 西安建筑科技大学 | Villages and small towns sewage infiltration pond |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110420 |