CN102515356A - Saturated filter bed for treating polluted water body - Google Patents
Saturated filter bed for treating polluted water body Download PDFInfo
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- CN102515356A CN102515356A CN2011103842192A CN201110384219A CN102515356A CN 102515356 A CN102515356 A CN 102515356A CN 2011103842192 A CN2011103842192 A CN 2011103842192A CN 201110384219 A CN201110384219 A CN 201110384219A CN 102515356 A CN102515356 A CN 102515356A
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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
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The invention relates to a saturated filter bed for treating polluted water body. The filter bed has a rectangular structure; an impermeable film is paved on a wall of the filter bed; a plurality of processing units which are distributed in a form of Chinese character ''Feng'' or ''Jing'' are arranged in the filter bed; the front and the back processing units are separated from each other and are connected with the wall, thereby forming water-distributing channels; each of the processing units has a ladder-shaped structure; a substrate is filled in each of the processing units; the substrate is composed of an ecological padding processing layer, a padding water-permeable isolating layer and a draining layer; the ecological padding processing layer is a middle layer; the padding water-permeable isolating layer is a slope constructing layer; the draining layer is a bottom layer; plants are planted on the surface of each of the processing units; a water-collecting pipeline is arranged right under each of the processing units; holes are uniformly formed on each water-collecting pipeline; a water-collecting check well is arranged on each of the processing units close to the wall of the filter bed; and the water-collecting pipelines are communicated with the water-collecting check well. The saturated filter bed has the functions of finally settling and filtering carbonate and reducing the secondarily generated organic solid grains.
Description
Technical field
The present invention relates to a kind of saturated flow filter bed that is used to handle polluted water body, belong to environment-friendly engineering and water-treatment technology field.
Background technology
Europe is handled wastewater treatment with artificial swamp the earliest and is started from the sixties in 20th century, Germany's beginning experiment of first artificial swamp in the world in 1974, and operation result is desirable, existing so far nearly 30 years history.
China all adopts traditional secondary activated sludge method processing technique in overwhelming majority municipal sewage plant, and this technology exists construction investment height, energy consumption height, running management requirement height and treatment effect and receives influent quality and the big deficiency of water yield influence of fluctuations.Under comparing, artificial swamp is sewage to be handled one of important scientific method.Its ultimate principle is: the specific plant of plantation on certain filler; When effluent stream is crossed artificial swamp, filter through sandstone, soil, through the multiple microbial activities of aerobic, anaerobic reaction micro unit in the matrix fill layer of sand and plant rhizosphere; The biochemical degradation deposition; Pollutant levels are reduced, water quality is purified, until qualified discharge.Treating processes comprises biochemical reaction, like decomposition and anabolism, plant absorbing; Physical-chemical reaction is like deposition absorption, nitration reaction and anti-nitration reaction etc.
At present, artificial swamp adopts free-water level artificial swamp or two kinds of forms of subsurface constructed wetland usually to the sewerage ecological reparation.Subsurface constructed wetland according to sewage above that mobile direction difference more refinement be divided into two kinds of horizontal-flow wetland and vertical-flow wetlands.Free-water level artificial swamp hydraulic load is low, and sewage treating efficiency is not high, needs a large amount of waters and soil with the assurance decontamination effect improving, and in a single day the pollution of area source input is arranged, and its decontamination effect improving is very not obvious.Horizontal-flow wetland is compared with the free-water level artificial swamp, and hydraulic load and pollution load are big, and is good to organism such as BOD, COD and heavy metal removal effect.But horizontal-flow wetland is compared with vertical-flow wetland, its shortcoming be denitrogenation, dephosphorization effect a little less than.
Vertical-flow wetland refer to sewage from the settling tank water distribution behind the filter bed surface, downwards vertically flow by gravity is a kind of high efficient technology in the artificial swamp, combines all kinds of sewage of the effective processing of physical filtering and biochemical reaction.Matrix fill in the filter bed is that microbial bacterial provides a very adapt circumstance; Organonitrogen is converted into ammonia nitrogen through ammonification; Under aerobic condition, ammonia nitrogen changes nitrate salt and nitrite into through nitrification, then under the condition of anaerobism and organic carbon source; Partly be reduced to nitrogen through denitrification, discharge into the atmosphere.P contained compound mainly is reaction in matrix fill, enrichment, deposition, thereby from sewage, removes.In the sewage infitration process, through aerobic, the anaerobic reaction micro unit in the filler layer of sand, the biochemical degradation deposition, Pollutant levels reduce.
After the common sewage of existing manual wetland flowed into bed body bottom, a bed body was in undersaturated condition, filter bed and oxygen full contact, nitrated ability is stronger, denitrifying capacity a little less than, nitrogenous compound removal ability is low.
Summary of the invention
The objective of the invention is to overcome the deficiency that prior art exists, a kind of saturated flow filter bed that is used to handle polluted water body is provided.
The object of the invention is realized through following technical scheme:
Be used to handle the saturated flow filter bed of polluted water body; Characteristics are: the said filter bed structure that is rectangle; The body of wall of filter bed is equipped with anti seepage membrane; The inside of filter bed is provided with several processing units that is rich font or groined type distribution, and the space links to each other with body of wall between the pre-process and post-process unit, forms the water distribution water channel; Said each processing unit is ladder structure, the equal filling substrate in the inside of each processing unit, and matrix is made up of ecological filler processing layer, filler permeable isolating and layer of displacement; Ecological filler processing layer is the middle layer, and the filler permeable isolating is that domatic is constructed layer, and layer of displacement is a lower floor; The surface plantation of each processing unit has plant; Be provided with the pipeline that catchments under each processing unit, the pipeline that catchments is positioned on the anti seepage membrane, evenly has the hole on the pipeline that catchments; Each processing unit is the setting inspection chamber that catchments near the filter bed body of wall, the pipeline connected set of catchmenting water inspection chamber.
Further, the saturated flow filter bed of polluted water body is handled in above-mentioned being used to, and the bottom of said filter bed is laid gravel bed and lime compacting bed course successively, and anti seepage membrane is established on lime compacting bed course upper berth; The bottom surface of said filter bed is provided with domatic along the water outlet direction.
Further, the saturated flow filter bed of polluted water body is handled in above-mentioned being used to, and the water surface elevation of said filter bed is higher than ecological filler processing layer surface.
Again further, the saturated flow filter bed of polluted water body is handled in above-mentioned being used to, and the water surface elevation of said filter bed is higher than ecological filler processing layer surface 30cm.
Again further, the saturated flow filter bed of polluted water body is handled in above-mentioned being used to, the said pipe connection overflow inspection chamber that catchments, and the overflow inspection chamber is provided with overflow spout.
Substantive distinguishing features and obvious improvement that technical scheme of the present invention is outstanding are mainly reflected in:
Filter bed of the present invention belongs to advanced treatment system; Because of filter bed is immersed in the water body for a long time, current are in state of saturation, and stronger anti-nitration reaction ability is arranged; Can effectively remove nitrogenous compound; Be proposed to be used in sewage after the fs handles, the remaining nitrate concentration too high situation that remains unchanged in the water outlet, and this wet land system can play denitrification fully, final deposition, filter carbonate and reduce the effect of the organic solid PM for particulate matter that secondary produces.The whole filter bed system structure that is rectangle, according to the treatment capacity and the local processing area of sewage, filter bed inside is made up of several processing units, and all processing units can be perhaps " well " font distribution of " rich " font structure in whole saturated flow filter bed; By the saturated flow filter bed that several processing units constitute, between former and later two processing units, the space links to each other with left and right sides body of wall, forms a long and wide water distribution water channel that wriggles, and to each processing unit water distribution, prolongs hydraulic detention time.Be provided with the pipeline that catchments under the processing unit, the even perforate of the pipeline that catchments, current get into the pipeline that catchments from tapping, and Parallel to the flow direction flows out.This facility is applicable to the processing of domestic sewage in rural areas by using, urban landscape water and lake sewage etc., has that processing efficiency height, landscape effect are good, resources conservation, flexible operation, characteristics such as applied widely.
Description of drawings
Below in conjunction with accompanying drawing technical scheme of the present invention is described further:
Fig. 1: the floor plan synoptic diagram of apparatus of the present invention;
The A-A cross-sectional schematic of Fig. 2: Fig. 1;
The B-B cross-sectional schematic of Fig. 3: Fig. 1.
Embodiment
The present invention is provided for handling the saturated flow filter bed of polluted water body; With common vertical flow filter bed comparing; Common vertical flow filter bed bed body is in undersaturated condition, and oxygen can be through atmospheric diffusion and plant transmission entering artificial wet land system, and there is a stronger nitrated ability in this system; And the saturated flow filter bed, because of filter bed is immersed in the water body for a long time, current are in state of saturation; Have only small amount of oxygen can transmit the entering water body, whole saturated flow filter bed forms anoxia condition, helps anti-nitration reaction and carries out; Can effectively remove the organonitrogen in the water body, the processing efficiency of increasing water quality.The saturated flow filter bed system structure that is rectangle, according to the treatment capacity and the local processing area of sewage, filter bed inside is made up of several processing units, and all processing units can be perhaps " well " font distribution of " rich " font structure in whole saturated flow filter bed; Whole saturated flow filter bed is made up of several processing units; Form a long and wide water distribution water channel that wriggles; To each processing unit water distribution, prolong the residence time as much as possible, be intended to effectively solve even inadequately, the inadequate problem of filter bed corner water distribution of conventional vertical stream filter bed water distribution.
As shown in Figure 1; Be used to handle the saturated flow filter bed of polluted water body; The filter bed structure that is rectangle, the body of wall of filter bed is equipped with anti seepage membrane 5, and the inside of filter bed is provided with several and is the processing unit that rich font or groined type distribute; The space links to each other with body of wall 4 between the pre-process and post-process unit, forms a long and wide water distribution water channel that wriggles; The bottom surface of filter bed is provided with domatic along water outlet direction 10, present difference of altitude, lets current in the saturated flow filter bed, be from stream mode; Current get into water-in 8 after rough handling, by the processing unit water distribution uniformity of water-in 8 to both sides, current flow to each processing unit along water outlet direction 10.
Like Fig. 2, shown in Figure 3, each processing unit is ladder structure, the equal filling substrate in the inside of each processing unit; Matrix is made up of ecological filler processing layer 1, filler permeable isolating 6 and layer of displacement, and ecological filler processing layer 1 is the middle layer, and filler permeable isolating 6 is constructed layer for domatic; Layer of displacement is a lower floor, and the surface plantation of each processing unit has plant 9, is provided with the pipeline 3 that catchments under each processing unit; The pipeline 3 that catchments is positioned on the anti seepage membrane 5, evenly has the hole on the pipeline 3 that catchments, and each processing unit is the setting inspection chamber 2 that catchments near the filter bed body of wall; The pipeline 3 that catchments is communicated with the inspection chamber 2 that catchments, and the pipeline 3 that catchments is communicated with overflow inspection chamber 13, and overflow inspection chamber 13 is provided with overflow spout 11; When water surface elevation is higher than the overflow spout mouth of pipe, Overflow drainage.The bottom of filter bed is laid gravel bed and lime compacting bed course successively, and anti seepage membrane is established on lime compacting bed course upper berth; The height of the water surface 7 of filter bed is higher than ecological filler processing layer surface 30cm.Current get into the pipeline 3 that the catchments inspection chamber 2 that catchments of flowing through from pipeline 3 tappings that catchment, and 12 discharge to the final outflow water place along water outlet direction 10.With common vertical flow filter bed comparing, the water surface 7 of saturated flow filter bed should exceed about ecological filler processing layer 1 surperficial 30cm; Otherwise, when the water surface surpasses catchmenting during height of overflow spout, current after overflow spout 11 and overflow inspection chamber 13 are collected, by the pipeline 3 that catchments along water outlet direction 10 to final drainage position 12 quick water outlets, recover normally highly up to horizontal plane.
The body of wall 4 of filter bed is made up of the customization aluminum alloy materials of being convenient to assemble, and peripheral body of wall 4 is 2m highly by the environment-friendly materials veneer, and intensity satisfies structural requirement; The filter bed bottom is laid thick gravel bed of 10cm and lime compacting bed course successively; Lay 1mm PE composite earthwork cloth anti seepage membrane 5 on the lime compacting bed course and carry out the antiseepage processing; Lay DN200 HDPE single-walled pipe on the anti seepage membrane 5 as catchmenting pipeline 3; Current are discharged to final drainage position 12 along water outlet direction 10 from pipeline 3 inspection chamber 2 that catchments of flowing through that catchments; The inner filling substrate of filter bed, matrix is made up of the different levels filtrate, comprises that the ecological filler processing layer 1 of thickness 50-80cm, the thickness of filler permeable isolating 6 are 30cm; For domatic is constructed layer, to form by the diameter 16-32mm coarse gravel of diameter 8-16mm cobble-stone and thickness 20cm, ecological filler processing layer 1 is the middle layer; Filler permeable isolating 6 is constructed layer for domatic; The pipeline of catchmenting 3 is arranged under the layer of displacement, evenly perforate on the pipeline 3 that catchments, current are in tapping flows into the pipeline 3 that catchments.Wherein ecological filler processing layer 1 filtrate satisfies the requirement of hydraulic parameters and graduation curve, can guarantee good hydraulics, and good growing environment is provided for plant and mikrobe; The plantation of filter bed surface has the strong and good plant 9 of landscape effect of soil removability, is specially reed and cattail, and planting density is 15 strains/m
2, expand the space that artificial swamp is purified waste water greatly, improve the ability that it is purified waste water, have better landscape effect simultaneously.Sewage compiles the back discharge through header effectively remove principal pollutant such as organism and nitrogen phosphorus through plant, mikrobe and matrix after.
During concrete the application, each processing unit of saturated flow filter bed is relatively independent, in the implementation process, can be according to the treatment capacity and local processing area of sewage, and filter bed inside is made up of several processing units; The saturated flow filter bed, pretreated sewage is through flow through saturated flow filter bed surface of the form of gravity flow, and filter bed selects to satisfy the filtrate of the line of writing music for a song, and guarantees artificial swamp operation steady in a long-term; Long and the wide water distribution water channel that wriggles that the gravity flow of saturated flow filter bed forms, to each filter bed water distribution, many as far as possible prolongation residence time.Wetland is divided into two parallel flow paths, improves the security of operation, and water surface elevation is controlled highly for exceeding about ecological filler processing layer 1 surperficial 30cm; The removal nitrogenous compound effect stability of saturated flow filter bed; And denitrification process rapid speed; The removal efficient of denitrogenation can not influence removal effect because of the flow velocity speed; In addition, organism in the polluted-water and principal pollutant such as nitrogen, phosphorus can effectively be removed through plant, mikrobe and matrix, and water quality is purified; In practice, organism also capable of using provides organic carbon like canebreak and algae, accelerates water conditioning, and the water outlet after the processing forms the gravity flow water body and discharges respectively to handle the unitary discrepancy in elevation through filter bed after through the pipe influx that catchments.
This filter bed belongs to advanced treatment system; Because of filter bed is immersed in the water body for a long time, current are in state of saturation, and stronger anti-nitration reaction ability is arranged; Can effectively remove nitrogenous compound; Be proposed to be used in sewage after the fs handles, the remaining nitrate concentration too high situation that remains unchanged in the water outlet, and this wet land system can play denitrification fully, final deposition, filter carbonate and reduce the effect of the organic solid PM for particulate matter that secondary produces.The whole filter bed system structure that is rectangle, according to the treatment capacity and the local processing area of sewage, filter bed inside is made up of several processing units, and all processing units can be perhaps " well " font distribution of " rich " font structure in whole saturated flow filter bed; By the saturated flow filter bed that several processing units constitute, between former and later two processing units, the space links to each other with left and right sides body of wall, forms a long and wide water distribution water channel that wriggles, and to each processing unit water distribution, prolongs hydraulic detention time.Be provided with the pipeline that catchments under the processing unit, the even perforate of the pipeline that catchments, current get into the pipeline that catchments from tapping, and Parallel to the flow direction flows out.This facility is applicable to the processing of domestic sewage in rural areas by using, urban landscape water and lake sewage etc., has that processing efficiency height, landscape effect are good, resources conservation, flexible operation, characteristics such as applied widely, has a extensive future, and is worth extensive popularization in the field of business.
What need understand is: the above only is a preferred implementation of the present invention; For those skilled in the art; Under the prerequisite that does not break away from the principle of the invention, can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (6)
1. be used to handle the saturated flow filter bed of polluted water body; It is characterized in that: the said filter bed structure that is rectangle; The body of wall of filter bed is equipped with anti seepage membrane; The inside of filter bed is provided with several processing units that is rich font or groined type distribution, and the space links to each other with body of wall between the pre-process and post-process unit, forms the water distribution water channel; Said each processing unit is ladder structure, the equal filling substrate in the inside of each processing unit, and matrix is made up of ecological filler processing layer, filler permeable isolating and layer of displacement; Ecological filler processing layer is the middle layer, and the filler permeable isolating is that domatic is constructed layer, and layer of displacement is a lower floor; The surface plantation of each processing unit has plant; Be provided with the pipeline that catchments under each processing unit, the pipeline that catchments is positioned on the anti seepage membrane, evenly has the hole on the pipeline that catchments; Each processing unit is the setting inspection chamber that catchments near the filter bed body of wall, the pipeline connected set of catchmenting water inspection chamber.
2. the saturated flow filter bed that is used to handle polluted water body according to claim 1 is characterized in that: the bottom of said filter bed is laid gravel bed and lime compacting bed course successively, and anti seepage membrane is established on lime compacting bed course upper berth.
3. the saturated flow filter bed that is used to handle polluted water body according to claim 1, it is characterized in that: the bottom surface of said filter bed is provided with domatic along the water outlet direction.
4. the saturated flow filter bed that is used to handle polluted water body according to claim 1 is characterized in that: the water surface elevation of said filter bed is higher than ecological filler processing layer surface.
5. the saturated flow filter bed that is used to handle polluted water body according to claim 4 is characterized in that: the water surface elevation of said filter bed is higher than ecological filler processing layer surface 30cm.
6. the saturated flow filter bed that is used to handle polluted water body according to claim 1 is characterized in that: the said pipe connection overflow inspection chamber that catchments, the overflow inspection chamber is provided with overflow spout.
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| CN2011103842192A CN102515356A (en) | 2011-11-28 | 2011-11-28 | Saturated filter bed for treating polluted water body |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108939632A (en) * | 2018-08-08 | 2018-12-07 | 江苏澳洋生态园林股份有限公司 | Purification and irrigation rig suitable for landscape water body and its land use for greening |
| CN108975518A (en) * | 2018-08-08 | 2018-12-11 | 江苏澳洋生态园林股份有限公司 | The purification device of high debirs content landscape water body |
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| CN1887747A (en) * | 2006-07-12 | 2007-01-03 | 浙江师范大学 | Sewage treating artificial wet land method |
| CN101462798A (en) * | 2009-01-16 | 2009-06-24 | 滨州学院 | Method for repairing beach wetland by papermaking wastewater irrigation |
| CN101875513A (en) * | 2010-03-26 | 2010-11-03 | 广西大学 | Method and device for removing Cr<6+> from domestic sewage |
| CN202390283U (en) * | 2011-11-28 | 2012-08-22 | 杜建强 | Saturated flow filter bed for processing contaminated water |
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2011
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US5618413A (en) * | 1993-11-10 | 1997-04-08 | Ocean Arks International, Inc. | Ecological fluidized bed system |
| CN1887747A (en) * | 2006-07-12 | 2007-01-03 | 浙江师范大学 | Sewage treating artificial wet land method |
| CN101462798A (en) * | 2009-01-16 | 2009-06-24 | 滨州学院 | Method for repairing beach wetland by papermaking wastewater irrigation |
| CN101875513A (en) * | 2010-03-26 | 2010-11-03 | 广西大学 | Method and device for removing Cr<6+> from domestic sewage |
| CN202390283U (en) * | 2011-11-28 | 2012-08-22 | 杜建强 | Saturated flow filter bed for processing contaminated water |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108939632A (en) * | 2018-08-08 | 2018-12-07 | 江苏澳洋生态园林股份有限公司 | Purification and irrigation rig suitable for landscape water body and its land use for greening |
| CN108975518A (en) * | 2018-08-08 | 2018-12-11 | 江苏澳洋生态园林股份有限公司 | The purification device of high debirs content landscape water body |
| WO2020029586A1 (en) * | 2018-08-08 | 2020-02-13 | 江苏澳洋生态园林股份有限公司 | Purifying device for landscape water with high content of organic waste |
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Application publication date: 20120627 |