CN104192985A - Backwash-free water distribution system for biological filter and control method thereof - Google Patents
Backwash-free water distribution system for biological filter and control method thereof Download PDFInfo
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- CN104192985A CN104192985A CN201410482771.9A CN201410482771A CN104192985A CN 104192985 A CN104192985 A CN 104192985A CN 201410482771 A CN201410482771 A CN 201410482771A CN 104192985 A CN104192985 A CN 104192985A
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Abstract
The invention relates to a backwash-free water distribution system for a biological filter and a control method thereof. The backwash-free water distribution system consists of a dosing pool, a water pump, a trunk pipe, main pipes, branch pipes and matched water output valves. Water distribution pipelines in the filter are distributed on the surface of a filter layer and comprise the main pipes and the branch pipes, wherein the branch pipes are perforated pipes; water distribution is performed on the filter through water distribution holes with different apertures. The water distribution system is controlled by an automatic control device to perform batch-type waster distribution at fixed time and fixed speed. The backwash-free water distribution system and the control method thereof disclosed by the invention have the characteristics that the water distribution is uniform, the control is fine, the treatment effect is good, the structure is simple, the mounting is simple and easy, the management is convenient, the blockage is avoided, the filter backwash is avoided, the energy consumption is low, the parameters can be accurately controlled by a water distribution unit, and the modular design is facilitated; the backwash-free water distribution system and the control method thereof are suitable for treating rural domestic waste with low water yield.
Description
Technical field
The present invention relates to a kind of biological filter and exempt from back flushing water distribution system and control method thereof, belong to rural sewage treatment technical field.
Background technology
The vast rural area of China is because area disperses, and the size of population is larger, collects the reasons such as difficulty and causes most areas there is no sewage treatment facility, has a strong impact on environment and harm resident physical and mental health.Country sewage is except low this distinguishing feature of processing rate, and intermittently discharged discharge capacity is few and disperse, and is the another characteristic feature of country sewage.In addition, in country sewage, contain the inorganic salts such as a large amount of organism and nitrogen, phosphorus, brought certain difficulty to collection and the processing of country sewage.The selection of rural sewage treatment process should adapt with the level of economic development in village, villager's ability to shoulder economically, makes every effort to that treatment effect is reliable and stable, running maintenance is easy, economical rationality.
Biological filter is a kind of biologic treating technique that the microbial film by filter material surface purifies sewage.Biological filter is comprised of pond body, filtrate, water-distributing device and water exhaust system.Biological filter adopts natural ventilation oxygen supply, and water inlet BOD volumetric loading is lower (is not more than 0.4kg/ (m conventionally
3d)), there is good purification (BOD
5clearance reaches 85%～95%), the advantage such as initial cost economizes, working cost is low, to the less Small Urban of sewage quantity and village, especially economic little flourishing villages and small towns, have larger using value.
Traditional biological filter is selected the filtrate of greater particle size conventionally, used adopts rubble, cobble, slag and coke etc., adopt in recent years the combined type filtrates such as plastic filtering materials, the waved plate being mainly processed into by polyvinyl chloride, polyethylene, polystyrene etc., honeycomb duct more.Water-distributing device divides two kinds of fixed nozzle system and portable water distributors, sewage with the form dosing of spraying to filtrate.But there is following shortcoming in traditional biological filter: filtrate is easy to stop up; Nozzles spray sewage, gives an offensive smell; The head needing is larger.Therefore, traditional biological filter is restricted in application, has affected the widespread use of this technology.
The biological sand filter that the quartz sand of take is filtration medium is a relatively new water technology, and its maximum feature is integrate bio-oxidation and hold back suspended solids, has saved post precipitation pond, has greatly simplified sewage disposal flow process.Water intake velocity, by meticulous design, is strictly controlled in filter tank, without aeration and back flushing, can avoid filtering layer to stop up, thereby greatly reduce working cost.
For the filtering feature of biological sand filter, water distribution system need to guarantee that water distribution is even in the situation that not carrying out back flushing, avoids filtering layer to stop up simultaneously, reduces energy consumption.At present, the water distribution system adapting with biological sand filter is not reported.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of biological filter and exempt from back flushing water distribution system and control method thereof.
Technical scheme of the present invention is as follows:
Back flushing water distribution system is exempted from a kind of biological filter, comprise dosing chamber, water pump, main pipe, main, arm and supporting outlet valve, described dosing chamber is connected with main pipe by water pump, on described main pipe, be provided with main, the both sides of described main are evenly provided with arm, described arm and described vertical setting of main horizontal direction, the end face of described arm is evenly provided with vertical water distributing pore and oblique water distributing pore, described vertical water distributing pore be positioned at arm directly over, described oblique water distributing pore is arranged on the both sides of vertical water distributing pore, and described oblique water distributing pore is 45° angle with line and the horizontal direction of a tube hub, the end face of described arm is provided with water vent, and described arm is connected with shore pipe by elbow, and described shore pipe setting vertical with arm and vertical with horizontal plane, is provided with outlet valve on described shore pipe.
According to the present invention, preferred, the number of the arm of the described every side of main is 2-10 bar, and the spacing between adjacent two arms is 0.8～1.0m, described Zhi Guanchang 1-6m.
According to the present invention, preferred, the caliber of described main is 30-60mm, and the caliber of described arm is 20-32mm, and the caliber of described shore pipe is identical with the caliber of described arm.
According to the present invention, preferred, the aperture of described vertical water distributing pore is 0.5-0.7cm, and the aperture of described oblique water distributing pore is 0.4-0.6cm, and the aperture of described vertical water distributing pore is greater than the aperture of described oblique water distributing pore.
According to the present invention, preferred, the pitch of holes of described vertical water distributing pore is 0.4-1m, and the pitch of holes of described oblique water distributing pore is 0.4-1m.
According to the present invention, preferred, the number of the water vent of every described arm is 1, and aperture is 0.6-1.0cm.
According to the present invention, preferred, the material of all pipelines is polyethylene (PE) or atactic copolymerized polypropene (PPR), avoids using metallic iron material and gets rusty easily.Described water pump is submersible sewage pump, preferred, and described water pump is connected with automatic control system and controls.Automatic control system can design by prior art.
According to the present invention, the water distributing pore of arm divides three rows to arrange, and a row is vertical water distributing pore, and two rows are oblique water distributing pore, and the varying in size of vertical water distributing pore and oblique water distributing pore.The water vent of arm end face setting is for getting rid of the water in pipeline, and the outlet valve on shore pipe and shore pipe, for the flushing of all water distribution pipes, has been avoided the special setting of back flushing pipeline like this.
According to the present invention, the caliber of main pipe can require to design according to flow and flow velocity, and pump head and flow also can design as the case may be.
According to the present invention, back flushing water distribution system is exempted from for the water distribution of biological filter in above-mentioned biological filter, and control method processing requirement is as follows:
Main and arm level are laid in biological filter and are positioned at filtering layer surface, by water pump, by dosing chamber, drawn water to water distribution uniformity in biological filter, system water intake mode is 4～6 intermittent loadings every day, keeps flooding time interval even, and each amount of inlet water and flow velocity are consistent;
The flow rate control of each vertical water distributing pore and oblique water distributing pore is 3.6～4.0L/min, and the free head of vertical water distributing pore and oblique water distributing pore is controlled between 0.4～0.5m;
It is 50～60cm/d that the filtering velocity of biological filter is controlled.
According to the present invention, preferred, layer protective layer filler is laid on the top of described biological filter filtering layer, protective layer packed height 10～20cm, and protective layer filler selects cobble, gravel to fill; More than main and arm are positioned at filtering layer, below protective layer filler, the outlet valve exposure on shore pipe is more than protective layer filler.Be convenient to the opening and closing of outlet valve.
Other parts of biological filter routinely technology design.
According to the present invention, preferred, the end-to-end distance of arm is from biological filter pool wall 25-30cm.
The present invention is applicable to take the biological filter that sand is medium, for the treatment of sanitary sewage, is particularly suitable for processing domestic sewage in rural areas by using, and suitable sand grains footpath, biological filter is between 0.5～1.5mm, and suitable single biological filter area is at 10～120m
2between, the form of biological filter is rectangle filter tank.
According to the present invention, the water distribution pipe of water distribution system is according to the pollution condition of water quality treatment, and per season or half a year rinse once, during flushing, all outlet valves are opened, and open water pump, rinse 1-2min, and the mud adhering on tube wall can upwards be discharged with water.
The present invention has the following advantages:
1, water distribution is even, controls meticulously, and treatment effect is good.The present invention has strictly controlled caliber, the flow velocity of water distribution pipe, and the diameter of posticum, pitch of holes and decoration form can be guaranteed the water distribution uniformity in filter tank, and the microorganism adhering on filtrate can be degraded efficiently in specific environment.
2, simple in structure, install simple and easy, convenient management.Water distribution system of the present invention, adopts the pipeline of different tube diameters to carry out organic assembling, and effluent adopting perforated pipe, without facilities such as nozzle, shower nozzles, installs simple and easy, not fragile.Pipeline and valve are selected plastic pipe, avoid getting rusty.During operation, only by controlling water pump, can carry out water distribution, non-recoil cleaning device, convenient management.
3, avoid stopping up, without filter back washing, energy consumption is low.The present invention adopts rational piping arrangement, and strict water inlet is controlled, and step water intake mode contacts the alternating and dirty water and air of microorganism, and the organism in sewage is carried out to adsorption and oxidation.Thereby realize biomembranous renewal on dirty water purification and filtrate, can not stop up filtrate, therefore, without adopting back flushing, without carrying out aeration, can greatly reduce energy consumption.The present invention simultaneously strictly controls filtering velocity, and head loss is little, and the current consumption of water pump seldom, is particularly suitable for the low-cost processes of country sewage.
4, water distributing pore is small, and the water distribution time is short, can effectively reduce emission of bad smell.Water distribution pipe posticum diameter of the present invention is only 0.4～0.7cm, and the scope of sprinkling is little, and simultaneity factor is intermittent type water distribution, and spraying time is short, is therefore difficult for emitting bad smell, and can reduce spread of germs, avoids growing mosquitos and flies, is easy to keep environment clean and tidy.If according to preferred method, on surface, filter tank, lay layer protective layer, water distribution process can not be exposed in air, can will drop to minimum on the impact of environment.
5, water distribution unit control parameter is accurate, is convenient to modular design.The present invention has stipulated the foundation structure of water distribution pipe, specified in more detail the caliber of arm, spacing, length, the position of posticum, aperture, and the control parameter of each unit, therefore the water distribution system in whole filter tank can be by the water distribution system simple combination of each unit, only need the parameter of main and water pump to design, be convenient to carry out modular design.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that back flushing water distribution system is exempted from biological filter of the present invention.
Fig. 2 is the plot plan of main and arm in biological filter of the present invention.
Fig. 3 is the structural representation of arm of the present invention and shore pipe.
Fig. 4 is that stereographic map is arranged in the perforation of arm of the present invention.
Fig. 5 is that arm of the present invention is along the sectional view of A-A direction.
Fig. 6 is the perforation plane of arrangement figure of arm of the present invention.
Wherein: 1, dosing chamber; 2, water pump; 3, main pipe; 4, main; 5, arm; 6, shore pipe; 7, outlet valve; 8, elbow; 9, vertical water distributing pore; 10, oblique water distributing pore; 11, water vent; 12, biological filter.
Embodiment
Below by specific embodiment, also by reference to the accompanying drawings the present invention is described further, but protection domain of the present invention is not limited to this.
Embodiment 1:60 ㎡ biological filter water distribution system
Back flushing water distribution system is exempted from a kind of biological filter, comprise dosing chamber 1, water pump 2, main pipe 3, main 4, arm 5 and supporting outlet valve 7, described dosing chamber 1 is connected with main pipe 3 by water pump 2, on described main pipe 3, be provided with main 4, the both sides of described main 4 are evenly provided with arm 5, described arm 5 and described vertical setting of main 4 horizontal directions, the end face of described arm 5 is evenly provided with vertical water distributing pore 9 and oblique water distributing pore 10, described vertical water distributing pore 9 be positioned at arm 5 directly over, described oblique water distributing pore 10 is arranged on the both sides of vertical water distributing pore 9, and described oblique water distributing pore 10 is 45° angle with line and the horizontal direction at arm 5 centers, the end face of described every arm 5 is provided with 1 water vent 11, and described arm 5 is connected with shore pipe 6 by elbow 8, and described shore pipe 6 setting vertical with arm 5 and vertical with horizontal plane, is provided with outlet valve 7 on described shore pipe 6.
The number of the arm 5 of the main 4 every sides described in the present embodiment is 4, and the spacing between adjacent two arms 5 is 0.8m, the described long 2.5m of arm 5;
The caliber of described main 4 is 40mm, and the caliber of described arm 5 is 25mm, and the caliber of described shore pipe 6 is identical with the caliber of described arm 5;
The aperture of described vertical water distributing pore 9 is 0.6cm, and the aperture of described oblique water distributing pore 10 is 0.5cm;
The pitch of holes of described vertical water distributing pore 9 is 0.8m, and the pitch of holes of described oblique water distributing pore 10 is 0.8m;
The aperture of described water vent 11 is 1cm, for getting rid of the water in pipeline;
The material of all pipelines is polyethylene (PE), avoids using metallic iron material and gets rusty easily, and described water pump 2 is submersible sewage pump, and described water pump 2 is connected with automatic control system and controls;
In the present embodiment, main 4 and arm 5 levels are laid in the biological filter 12 that is of a size of 10m * 6m and are positioned at filtering layer surface, main 4 and arm 5 all lie in a horizontal plane on filtrate, each interior cloth in biological filter 12 installs 1 main 4, main 4 is positioned at biological filter 12 central authorities, perpendicular to 12Chang limit, biological filter, the end-to-end distance of arm 5 is 12 pool wall horizontal throw 30cm from biological filter.
Layer protective layer filler is laid on the top of biological filter 12 filtering layers described in the present embodiment, protective layer packed height 10cm, and protective layer filler selects cobble, gravel to fill; More than main 4 and arm 5 are positioned at filtering layer, below protective layer filler, outlet valve 7 exposures on shore pipe 6, more than protective layer filler, are convenient to the opening and closing of outlet valve 7.
The water distribution pipe of the water distribution system of the present embodiment is according to the pollution condition of water quality treatment, and per season rinses once, during flushing, all outlet valves 7 is opened, and opens water pump 2, rinses 1-2min, and the mud adhering on tube wall can upwards be discharged with water.
Embodiment 2:20 ㎡ biological filter water distribution system
A back flushing water distribution system is exempted from biological filter, and as described in Example 1, difference is structure,
Biological filter 12 is of a size of 5m * 4m;
The number of the arm 5 of described main 4 every sides is 3, and the spacing between adjacent two arms 5 is 1m, the described long 1.5m of arm 5;
The caliber of described main 4 is 30mm, and the caliber of described arm 5 is 20mm, and the caliber of described shore pipe 6 is identical with the caliber of described arm 5;
The aperture of described vertical water distributing pore 9 is 0.5cm, and the aperture of described oblique water distributing pore 10 is 0.4cm;
The pitch of holes of described vertical water distributing pore 9 is 0.5m, and the pitch of holes of described oblique water distributing pore 10 is 0.5m;
The aperture of described water vent 11 is 0.6cm, for getting rid of the water in pipeline.
Embodiment 3:100 ㎡ biological filter water distribution system
A back flushing water distribution system is exempted from biological filter, and as described in Example 1, difference is structure,
Biological filter 12 is of a size of 12.5m * 8m;
The number of the arm 5 of described main 4 every sides is 9, and the spacing between adjacent two arms 5 is 0.8m, the described long 3.5m of arm 5;
The caliber of described main 4 is 45mm, and the caliber of described arm 5 is 32mm, and the caliber of described shore pipe 6 is identical with the caliber of described arm 5;
The aperture of described vertical water distributing pore 9 is 0.7cm, and the aperture of described oblique water distributing pore 10 is 0.6cm;
The pitch of holes of described vertical water distributing pore 9 is 0.8m, and the pitch of holes of described oblique water distributing pore 10 is 0.8m;
The aperture of described water vent 11 is 1.0cm, for getting rid of the water in pipeline.
Embodiment 4
Utilize the biological filter of embodiment 1 to exempt from back flushing water distribution system to there being the method for 150 family residents' sanitary sewage disposal that arrange in village;
The sanitary sewage of 150 village, family discharges every day is 15m
3, water quality is COD400mg/L, BOD
5200mg/L, SS300mg/L, ammonia nitrogen 40mg/L, total phosphorus 6mg/L, adopts four lattice biological filters 12, every lattice area 60 ㎡;
Control step is as follows:
(1) by water pump 2 by dosing chamber 1 12 water distribution uniformities to biological filter that draw water, system water intake mode is 5 intermittent loadings every day, by automatic control system, keeps flooding time interval even, each amount of inlet water 3m
3;
(2) by this water distribution system, carry out water distribution, the filtering velocity of biological filter 12 is controlled as 60cm/d;
(3) flow rate control of each vertical water distributing pore 9 and oblique water distributing pore 10 is 4.0L/min, and vertical water distributing pore 9 and oblique water distributing pore 10 free heads are 0.5m.
The water distribution pipe of water distribution system is according to the pollution condition of water quality treatment, and per season rinses once, during flushing, all outlet valves 7 is opened, and opens water pump 2, rinses 1-2min, and the mud adhering on tube wall can upwards be discharged with water.
Embodiment 5
Utilize the biological filter of embodiment 2 to exempt from back flushing water distribution system to the method that has 30 family residents' village domestic sewage dispersant type that Residents is arranged to process,
The sanitary sewage of 30 village, family discharges every day is 4m
3, water quality is COD380mg/L, BOD
5185mg/L, SS260mg/L, ammonia nitrogen 40mg/L, total phosphorus 6mg/L, adopts two sound of laughing filter tanks, every lattice area 20 ㎡;
Control step is as follows:
(1) by water pump 2 by dosing chamber 1 12 water distribution uniformities to biological filter that draw water, system water intake mode is 4 intermittent loadings every day, by automatic control system, keeps flooding time interval even, each amount of inlet water 1.0m
3;
(2) by this water distribution system, carry out water distribution, the filtering velocity of biological filter 12 is controlled as 50cm/d.
(3) flow rate control of each vertical water distributing pore 9 and oblique water distributing pore 10 is 3.6L/min, vertical water distributing pore 9 and oblique water distributing pore 10 free head 0.4m.
The water distribution pipe of water distribution system is according to the pollution condition of water quality treatment, and per season rinses once, during flushing, all outlet valves 7 is opened, and opens water pump 2, rinses 1-2min, and the mud adhering on tube wall can upwards be discharged with water.
Claims (10)
1. back flushing water distribution system is exempted from a biological filter, it is characterized in that this system comprises dosing chamber, water pump, main pipe, main, arm and supporting outlet valve, described dosing chamber is connected with main pipe by water pump, on described main pipe, be provided with main, the both sides of described main are evenly provided with arm, described arm and described vertical setting of main horizontal direction, the end face of described arm is evenly provided with vertical water distributing pore and oblique water distributing pore, described vertical water distributing pore be positioned at arm directly over, described oblique water distributing pore is arranged on the both sides of vertical water distributing pore, and described oblique water distributing pore is 45° angle with line and the horizontal direction of a tube hub, the end face of described arm is provided with water vent, and described arm is connected with shore pipe by elbow, and described shore pipe setting vertical with arm and vertical with horizontal plane, is provided with outlet valve on described shore pipe.
2. back flushing water distribution system is exempted from biological filter according to claim 1, it is characterized in that, the number of the arm of the described every side of main is 2-10 bar, and the spacing between adjacent two arms is 0.8～1.0m, described Zhi Guanchang 1-6m.
3. according to the biological filter described in claim, exempt from back flushing water distribution system, it is characterized in that, the caliber of described main is 30-60mm, and the caliber of described arm is 20-32mm, and the caliber of described shore pipe is identical with the caliber of described arm.
4. back flushing water distribution system is exempted from biological filter according to claim 1, it is characterized in that, the aperture of described vertical water distributing pore is 0.5-0.7cm, and the aperture of described oblique water distributing pore is 0.4-0.6cm, and the aperture of described vertical water distributing pore is greater than the aperture of described oblique water distributing pore.
5. back flushing water distribution system is exempted from biological filter according to claim 1, it is characterized in that, the pitch of holes of described vertical water distributing pore is 0.4-1m, and the pitch of holes of described oblique water distributing pore is 0.4-1m.
6. back flushing water distribution system is exempted from biological filter according to claim 1, it is characterized in that, the number of described water vent is 1, and aperture is 0.6-1.0cm.
7. back flushing water distribution system is exempted from biological filter according to claim 1, it is characterized in that, the material of all pipelines is polyethylene or atactic copolymerized polypropene.
8. utilize biological filter described in claim 1-7 any one to exempt from the method that back flushing water distribution system is controlled water distribution, processing requirement is as follows:
Main and arm level are laid in biological filter and are positioned at filtering layer surface, by water pump, by dosing chamber, drawn water to water distribution uniformity in biological filter, system water intake mode is 4～6 intermittent loadings every day, keeps flooding time interval even, and each amount of inlet water and flow velocity are consistent;
The flow rate control of each vertical water distributing pore and oblique water distributing pore is 3.6～4.0L/min, and the free head of vertical water distributing pore and oblique water distributing pore is controlled between 0.4～0.5m;
It is 50～60cm/d that the filtering velocity of biological filter is controlled.
9. the method that water distribution is controlled according to claim 8, is characterized in that, layer protective layer filler is laid on the top of described biological filter filtering layer, protective layer packed height 10～20cm, and protective layer filler selects cobble, gravel to fill; More than main and arm are positioned at filtering layer, below protective layer filler, the outlet valve exposure on shore pipe is more than protective layer filler.
10. the method that water distribution is controlled according to claim 8, is characterized in that, the end-to-end distance of arm is from biological filter pool wall 25-30cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410482771.9A CN104192985B (en) | 2014-09-19 | 2014-09-19 | Back flushing water distribution system and control method thereof are exempted from a kind of biological filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410482771.9A CN104192985B (en) | 2014-09-19 | 2014-09-19 | Back flushing water distribution system and control method thereof are exempted from a kind of biological filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104192985A true CN104192985A (en) | 2014-12-10 |
| CN104192985B CN104192985B (en) | 2016-04-13 |
Family
ID=52078408
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|---|---|---|---|
| CN201410482771.9A Active CN104192985B (en) | 2014-09-19 | 2014-09-19 | Back flushing water distribution system and control method thereof are exempted from a kind of biological filter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106310751A (en) * | 2015-07-07 | 2017-01-11 | 上海奥星制药技术装备有限公司 | Upper water distributor for filter |
| CN106379996A (en) * | 2016-11-07 | 2017-02-08 | 平潭盖亚环保科技有限公司 | Bio-filter used for treating wastewater |
| CN109231466A (en) * | 2018-10-11 | 2019-01-18 | 南京工业大学 | A kind of multistage Algal Ecology wetland using potential energy |
| CN112358031A (en) * | 2020-09-28 | 2021-02-12 | 安徽普氏生态环境工程有限公司 | Water and gas distribution structure of biological filter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203170102U (en) * | 2013-03-30 | 2013-09-04 | 武汉芳笛环保工程有限公司 | Uniform water distribution device for filter tank |
| RU133121U1 (en) * | 2013-03-22 | 2013-10-10 | Алексей Андреевич Петропавловский | BIOFILTER |
| CN203715367U (en) * | 2013-11-20 | 2014-07-16 | 华南理工大学 | Water distribution device of integral ozone-aeration biofilter |
-
2014
- 2014-09-19 CN CN201410482771.9A patent/CN104192985B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU133121U1 (en) * | 2013-03-22 | 2013-10-10 | Алексей Андреевич Петропавловский | BIOFILTER |
| CN203170102U (en) * | 2013-03-30 | 2013-09-04 | 武汉芳笛环保工程有限公司 | Uniform water distribution device for filter tank |
| CN203715367U (en) * | 2013-11-20 | 2014-07-16 | 华南理工大学 | Water distribution device of integral ozone-aeration biofilter |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106310751A (en) * | 2015-07-07 | 2017-01-11 | 上海奥星制药技术装备有限公司 | Upper water distributor for filter |
| CN106379996A (en) * | 2016-11-07 | 2017-02-08 | 平潭盖亚环保科技有限公司 | Bio-filter used for treating wastewater |
| WO2018082238A1 (en) * | 2016-11-07 | 2018-05-11 | 江西盖亚环保科技有限公司 | Biological filter bed used for treating wastewater |
| CN109231466A (en) * | 2018-10-11 | 2019-01-18 | 南京工业大学 | A kind of multistage Algal Ecology wetland using potential energy |
| CN112358031A (en) * | 2020-09-28 | 2021-02-12 | 安徽普氏生态环境工程有限公司 | Water and gas distribution structure of biological filter |
| CN112358031B (en) * | 2020-09-28 | 2023-10-03 | 安徽普氏生态环境有限公司 | Water and gas distribution structure of biological filter |
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| Publication number | Publication date |
|---|---|
| CN104192985B (en) | 2016-04-13 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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