CN202754874U - Combined biological filter device - Google Patents
Combined biological filter device Download PDFInfo
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- CN202754874U CN202754874U CN2012201149819U CN201220114981U CN202754874U CN 202754874 U CN202754874 U CN 202754874U CN 2012201149819 U CN2012201149819 U CN 2012201149819U CN 201220114981 U CN201220114981 U CN 201220114981U CN 202754874 U CN202754874 U CN 202754874U
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Abstract
The utility model belongs to the technical field of water treatment and particularly relates to a combined biological filter device for domestic sewage treatment. A combined biological filter serves as a main body of the process, a system is composed of a high water distribution tank and a biological trickling filter, a surface layer of the trickling filter is an infiltration system, a lower layer of the trickling filter is a biological filter, and an ecological type sewage treatment system using microorganisms, plants, animals, stuffing and the like as major elements is built by grading biological stuffing with different particle sizes. The biological stuffing such as biological ceramsite and non-woven fabrics which serve as carriers for microorganism growth and attachment are added into the high water distribution tank of the combined biological filter. By the aid of a high water distribution anaerobic filter, the space of the sewage treatment system is fully used, an anaerobic or oxygen-deficient environment is formed, biological nitrogen removal efficiency is improved, and COD (chemical oxygen demand) removal rate is increased; a combined biological filter body can be prefabricated by glass reinforced plastics and mounted on site, so that construction speed is increased greatly, equalization of sewage treatment facilities is achieved, and industrial production is benefited; and the system can be composed of the high distribution tank and a one-stage or multistage biological trickling filter according to requirements on effluent effects.
Description
Technical field
The utility model patent belongs to water-treatment technology field, is specifically related to a kind of combined type ecological filter device of centralized processing village sewage.
Background technology
The water bodys such as several Big Lakess of China all have been eutrophication, and the arch-criminal is exactly pollution of area source.The President Hu Jintao emphasizes in 2010 academician's conferences, form the novel agricultural of ecosystem persistence benign cycle, view grace, diverse in function, town and country one, and research and development are promoted and economized on resources, reduce the technology such as pollution of area source, agricultural wastes recycling.At present, controlling area-source pollution becomes the Focal point and difficult point that China's disposal of pollutants load is cut down.Village sanitary sewage discharging is the important component part of pollution of area source, and the high-efficient denitrification and dephosphorization technology of research and development village sewage is to reduce China's pollution of area source load, thereby improves the key of China's quality of water environment.Tower earthworm ecological filter tank system is the land treatment system that ecotechnology is strengthened in a kind of application, and it is to have the organism of eating, improve the sewage ecological treatment system of a kind of multi-layer multi-stage water distribution that the Ecological Functions such as synergy of soil aeration water permeability and earthworm and microorganism design according to earthworm.
Combined type ecological filter device is as improvement and the raising of tower earthworm ecological filter tank, formed by high-order distributing trough and one or more levels ecological trickling filter, the trickling filter top layer is the land percolation system, lower floor is the biological filter, biologic packing material grating by different-grain diameter forms, made up with microorganism, plant, animal, fillers etc. are the ecological type sewage treatment system of principal element, efficiently solve the oxygenation problem in the sewage disposal, nitration denitrification effect under the low ratio of carbon to ammonium condition, tp removal rate is crossed the low insurmountable gordian technique difficult problem of general filter chamber that waits, and effluent quality is up to standard.
Summary of the invention
The purpose of this utility model is to propose a kind of combined type ecological filter device for centralized sanitary sewage, this apparatus main body is the combined biological filter tank, system is comprised of high-order distributing trough and one or more levels ecological trickling filter, the trickling filter top layer is the land percolation system, lower floor is the biological filter, biologic packing material grating by different-grain diameter forms, and has made up the ecological type sewage treatment system take microorganism, plant, animal, filler etc. as principal element.
After sanitary sewage is collected through sewer line, enter equalizing tank 1 and carry out pre-treatment, remove part COD, the hydrolysis macromolecular substance, have simultaneously the effect of precipitation and interception suspended matter concurrently, the supernatant liquor of equalizing tank 1 enters in the high-order distributing trough 2 by sump pump, and there is packing layer 3 at the middle part of high-order distributing trough 2, added biologic packing material in the packing layer 3, the carrier that can adhere to for microorganism growth such as biological ceramic particle, non-woven fabrics etc.The mud of bottom precipitation can be discharged by mud valve 9, in the high-order distributing trough 2 pipeline is arranged, the sewage that microbiological treatment can be crossed enters ecological trickling filter by by-pass valve 4 and surface cloth water pipe 6, the mode that ecological trickling filter adopts modular construction, the design of gradient tower layer, multi-level unit series connection to process, every one deck tower is a processing unit, it is square, rectangle or circle, and the tower layer is taked staircase-type or rotary type mode combinations, is convenient to maintenance and replacement.Ecological filter is made of packing layer 7, and every one-level packing layer arranges basically identical, and the filler upper strata is comprised of the loam that adds carbon element, thus this layer owing to there being earthworm movement to be referred to as the earthworm bed, the thickness of earthworm bed is 30～40cm; The middle layer is filled by fine sand, the layering of 3～20cm rubble, lower floor is comprised of particle diameter 10～15cm cobble, throw in earthworm in the earthworm bed, earthworm density is 8g～12g (earthworm)/(L filler), the earthworm and ecological trickling filter, at every one-level processing unit, in the time of surperficial water distribution, in earthworm bed Artificial Soil filler, be provided with the internal layer water distributor, internal layer water distribution 30～40mm, the depth of burying of internal layer water distributor is 25～30cm place in the filler, and material is the pvc pipe material; It is green stone with the geotextile parcel around the internal layer water distributor, the geotextile skin namely is the special soil filter layer that the Artificial Soil of formulated forms, the Artificial Soil filler is comprised of the suitable loam in locality, wood chip, sand, by volume 6: 2: 1～9: 3: 1 ratio is mixed and is formed, main water inlet tube at water distributor is equipped with the goal valve, bifurcation at water inlet pipe is equipped with by-pass valve by control goal valve, makes sewage flow into respectively water distributor and internal layer water distributor via by-pass valve.The filter tank is provided with supporting layer, guarantees the safety and firmness of pond body, and this supporting layer can be pebbles.
Pond, described combined biological filter tank body can adopt glass reinforced plastic prefabricated, and on-the-spot the installation improved speed of application greatly, realized sewage treatment facility equipment, is conducive to suitability for industrialized production.
The utility model combined biological filter tank has following principal feature:
1) has higher denitrogenation dephosphorizing efficient;
The operation scheme of 2) dripping filter has solved the oxygenation problem of sewage, is conducive to the nitrated of the removal of organic pollution materials in the sewage (being mainly BOD) and nitrogenous substances;
3) for the intensity of sewage type, research and develop the device system of mass-producing, seriation;
4) low construction cost and running cost, be easy to safeguard, the seriation technology of high effluent quality;
5) the Chinese territory of adaptation is vast, the larger present situation of climate type difference between the different geographical, and research and development can be in a plurality of local seriation technology that shift.
Description of drawings
Fig. 1 is process flow sheet of the present utility model.
Fig. 2 is structural representation of the present utility model.
Number in the figure: 1 is equalizing tank, and 2 is high-order distributing trough, and 3 is packing layer, and 4 is by-pass valve, and 5 is the aproll layer, and 6 is the surface cloth water pipe, and 7 is packing layer, and 8 is supporting layer, and 9 is mud valve.
Embodiment
Wujin District concentrates rural domestic sewage treatment to adopt the technique of anaerobic treatment+combined type tower biological filter to process at Wujin of Changzhou Luoyang townee Feng Cun.
One of anaerobic pond:
Design HRT=24h, then useful volume Vm=24=24m
3
Design effectively is of a size of 4 * 3 * 2.3m, and the design superelevation is 0.3m, available depth 2m.Floor space A1=(4+0.5) * (3+0.5)=16m
2
Steel and concrete structure, antiseepage is processed, and filler is added in the stage casing, adds a cover, and earthing stays manhole.
Wherein COD, BOD5 processing efficiency are in 40%, and total nitrogen, total phosphorus calculate with 10%.After processing through anaerobic pond, concentration of wastewater is COD180mg/L,, BOD5 is 144mg/L, total phosphorus is 4.5mg/L, total nitrogen is 45mg/L.
The combined type tower biological filter:
The combined type tower biological filter is comprised of three grades of filter tanks, first step filter tank is high-order water distribution anaerobic filter, the novel anaerobism filtrate of configuration in the filter tank, the anaerobism filtrate is the granule filter material of different gradation, in sewage treatment process, by utilizing filtrate absorption, microorganism synergy, further COD, SS and part nitrogen phosphorus are removed in interception.Intermittent loading is conducive to the endogenous digestion of microorganism in the ecological filter, the generation of reduce mud, and filter tank at the corresponding levels is spoil disposal not substantially.
Have in each tower layer of second, third grade about 30cm take soil as main filter material layer, be that the earthworm movement zone also is the zone of main processing sanitary sewage, be size fractionated, different types of filler under the pedosphere.Be furnished with uniform posticum below each tower layer, the space about 40cm is arranged between tower layer and the tower layer, in the process of sewage drippage, required oxygen divides in the time of can replenishing organic matter decomposition fully.The novel tower-type earthworm and ecological filter takes full advantage of the synergy of earthworm and microorganism on common ecological filter basis, and the function such as increase air permeability of earthworm, decomposing organic matter, can more effectively carry out better sewage disposal.Earthworm is degradation of organic substances in the filter tank, also can be by the biochemical action of its gizzard grinding with enteron aisle, and with the synergy of microorganism, promote C, N, P transforms and mineralising, but its major function is loosened, is cleared up for the machinery in the soil mobile layer, filter bed is played physics cleaning effect, keep soil from packing together, stop up.The activity of earthworm in the filter tank can also Effective Raise microbe population and microorganism active, promotes the anaerobic digestion of organic substance to transform.Its structural representation as shown in Figure 2.
Novel tower-type earthworm filter tank main body is glass fibre reinforced plastic structure, and on-the-spot the installation forms, and filler is haydite, sand, cinder etc., and the tower earthworm ecological filter tank earthworm generally is movable in the top layer take soil as main filter material layer to the zone of degree of depth 30cm.
Passed through long engineering practice and Project Demonstration, the difference of existing combined type tower biological filter and tower earthworm ecological filter tank is that material of main part adopts on-the-spot installation of glass reinforced plastic to form, and guarantees the sealing property of tower body itself, does not water-tightly seep water; Adopt novel filtrate, density is less, and specific surface area is large, is more prone to loading microorganisms; Prolong hydraulic detention time, sewage is longer in the tower body residence time; The earthworm kind of earthworm for improveing, its anti-flooding property significantly improves, and more bears dirty; Engineering time shortens, and the tower earthworm ecological filter tank engineering time is about 40-50 days, and the engineering time of novel tower-type earthworm and ecological filter is about 10-20 days, and the main body settling time is 2-3 days, has improved greatly engineering efficient etc.Wherein, the effective size of high-order water distribution anaerobic filter is 4 * 1 * 1.6m, and the filtrate filling thickness is 0.8m, and the filtrate porosity is 40%, and the design of first and second grade tower layer effectively is of a size of 4 * 2 * 1m, and the drop between the tower layer is 60cm.Wherein in 90%, total nitrogen, total phosphorus calculate with 80% the COD processing efficiency in 80%, BOD5 processing efficiency.After the anaerobic pond processing, concentration of wastewater is COD 36mg/L, and BOD5 is 14mg/L, and total phosphorus is 0.9mg/L, and total nitrogen is 9mg/L.Administer water outlet and reach " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) more than the one-level B, play a significant role in the Wujin District rural domestic sewage treatment with higher processing rate.
Claims (8)
1. combined type ecological filter device of processing sanitary sewage, this device is comprised of high-order distributing trough and one or more levels ecological trickling filter, after it is characterized in that sanitary sewage is collected through sewer line, enter equalizing tank (1) and carry out pre-treatment, the supernatant liquor of equalizing tank (1) enters in the high-order distributing trough (2) by sump pump, there is packing layer (3) at the middle part of high-order distributing trough (2), packing layer has added biologic packing material in (3), the mud of high-order distributing trough (2) bottom precipitation is discharged by mud valve (9), in the high-order distributing trough (2) pipeline is arranged, the sewage that microbiological treatment is crossed enters ecological trickling filter by by-pass valve (4) and surface cloth water pipe (6), ecological trickling filter is by aproll layer (5), packing layer (7), supporting layer (8) consists of, the upper strata of packing layer (7) is comprised of the loam that adds carbon element, the middle layer is by fine sand, the rubble layering is filled, lower floor is comprised of cobble, at every one-level processing unit, in the time of surperficial water distribution, in earthworm bed Artificial Soil filler, be provided with the internal layer water distributor, it is green stone with the geotextile parcel around the internal layer water distributor, the geotextile skin is the special soil filter layer that Artificial Soil forms, main water inlet tube at water distributor is equipped with the goal valve, bifurcation at water inlet pipe is equipped with by-pass valve by control goal valve, makes sewage flow into respectively surface cloth water pipe and internal layer water distributor via by-pass valve.
2. combined type ecological filter device according to claim 1 is characterized in that having added biologic packing material in the packing layer (3), is carrier such as biological ceramic particle or the non-woven fabrics that can supply microorganism growth to adhere to.
3. combined type ecological filter device according to claim 1, it is characterized in that the mode that ecological trickling filter adopts modular construction, the design of gradient tower layer, multi-level unit series connection to process, every one deck tower is a processing unit, the tower layer is taked staircase-type or rotary type mode combinations, is convenient to maintenance and replacement.
4. combined type ecological filter device according to claim 1 is characterized in that ecological trickling filter is square, rectangle or circle.
5. combined type ecological filter device according to claim 1 is characterized in that the upper strata of packing layer (7) is comprised of the loam that adds carbon element, thus this layer owing to there being earthworm movement to be referred to as the earthworm bed, the thickness of earthworm bed is 30～40cm; The middle layer is filled by fine sand, the layering of 3～20cm rubble, and lower floor is comprised of particle diameter 10～15cm cobble.
6. combined type ecological filter device according to claim 1 is characterized in that being provided with the internal layer water distributor in earthworm bed Artificial Soil filler, internal layer water distribution 30～40mm, and the depth of burying of internal layer water distributor is 25～30cm place in the filler.
7. combined type ecological filter device according to claim 1 is characterized in that the Artificial Soil filler is comprised of the suitable loam in locality, wood chip, sand, and by volume 6: 2: 1～9: 3: 1 ratio is mixed and formed.
8. combined biological according to claim 1 filter tank device is characterized in that compound tower-type ecological filter tank pond body can adopt glass reinforced plastic prefabricated.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012201149819U CN202754874U (en) | 2012-03-22 | 2012-03-22 | Combined biological filter device |
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| CN2012201149819U CN202754874U (en) | 2012-03-22 | 2012-03-22 | Combined biological filter device |
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| CN202754874U true CN202754874U (en) | 2013-02-27 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103351080A (en) * | 2013-07-02 | 2013-10-16 | 贵州师范大学 | Purification method for rural domestic sewage and stepped sewage percolation purification system |
| CN103964647A (en) * | 2014-05-20 | 2014-08-06 | 环境保护部南京环境科学研究所 | Three-stage biofilter system for removing nitrogen and phosphorus by using industrial waste and sewage treatment method thereof |
| CN104496110A (en) * | 2014-12-04 | 2015-04-08 | 北京建筑大学 | Soil percolation device |
| CN105366892A (en) * | 2015-12-09 | 2016-03-02 | 张春辉 | Shallow-layer biological filter disc and filtration system composed of filter discs |
| CN110054368A (en) * | 2019-05-29 | 2019-07-26 | 宜昌朗天新型建材有限公司 | A kind of sewage disposal system based on haydite production |
| CN110204138A (en) * | 2019-04-22 | 2019-09-06 | 中节能兆盛环保有限公司 | A kind of compound tower-type domestic sewage in rural areas centralized processing technique |
| WO2020147202A1 (en) * | 2019-01-15 | 2020-07-23 | 复旦大学 | Novel ecological slope protection having high-efficiency water purification function and ecological improvement method |
-
2012
- 2012-03-22 CN CN2012201149819U patent/CN202754874U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103351080A (en) * | 2013-07-02 | 2013-10-16 | 贵州师范大学 | Purification method for rural domestic sewage and stepped sewage percolation purification system |
| CN103964647A (en) * | 2014-05-20 | 2014-08-06 | 环境保护部南京环境科学研究所 | Three-stage biofilter system for removing nitrogen and phosphorus by using industrial waste and sewage treatment method thereof |
| CN103964647B (en) * | 2014-05-20 | 2016-06-01 | 环境保护部南京环境科学研究所 | A kind of three grades of biological filter systems and sewage water treatment method thereof utilizing trade waste denitrogenation dephosphorizing |
| CN104496110A (en) * | 2014-12-04 | 2015-04-08 | 北京建筑大学 | Soil percolation device |
| CN105366892A (en) * | 2015-12-09 | 2016-03-02 | 张春辉 | Shallow-layer biological filter disc and filtration system composed of filter discs |
| CN105366892B (en) * | 2015-12-09 | 2018-04-17 | 东莞市恒春环保服务有限公司 | The filtration system of shallow-layer formula biology filter disc and its composition |
| WO2020147202A1 (en) * | 2019-01-15 | 2020-07-23 | 复旦大学 | Novel ecological slope protection having high-efficiency water purification function and ecological improvement method |
| CN110204138A (en) * | 2019-04-22 | 2019-09-06 | 中节能兆盛环保有限公司 | A kind of compound tower-type domestic sewage in rural areas centralized processing technique |
| CN110054368A (en) * | 2019-05-29 | 2019-07-26 | 宜昌朗天新型建材有限公司 | A kind of sewage disposal system based on haydite production |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20180322 |
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| CF01 | Termination of patent right due to non-payment of annual fee |