CN103524006A - Urban inland river rainfall runoff purification suspended wall self-oxygenating subsurface wetland device - Google Patents
Urban inland river rainfall runoff purification suspended wall self-oxygenating subsurface wetland device Download PDFInfo
- Publication number
- CN103524006A CN103524006A CN201310532608.4A CN201310532608A CN103524006A CN 103524006 A CN103524006 A CN 103524006A CN 201310532608 A CN201310532608 A CN 201310532608A CN 103524006 A CN103524006 A CN 103524006A
- Authority
- CN
- China
- Prior art keywords
- wetland
- inland river
- oxygenation
- pipe
- city inland
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Biological Treatment Of Waste Water (AREA)
- Water Treatment By Sorption (AREA)
Abstract
一种城市内河雨水径流净化悬壁自充氧潜流湿地装置，它涉及一种潜流湿地装置。本发明是要解决目前的潜流湿地直接布置在河道内会降低河道的水力半径影响泄洪，并且净化效果差，而浮岛湿地为了实现悬浮状态没有充分的基质层，净化效果差的技术问题。本发明的城市内河雨水径流净化悬壁自充氧潜流湿地装置包括入河雨水径流布水系统、悬壁自充氧潜流湿地系统和湿地排水跌水曝气系统，入河雨水径流布水系统安装在城市内河堤坝内壁湿地上方，悬壁自充氧潜流湿地系统安装在城市内河堤坝壁面上，湿地排水跌水曝气系统安装在悬壁自充氧潜流湿地系统的底部。优点：本装置不会降低河道的水力半径并且净化效果好。本发明应用于城市内河雨水的净化领域。
The utility model relates to a self-oxygenating subsurface flow wetland device for purifying the rainwater runoff of an urban inland river, which relates to a subsurface flow wetland device. The present invention aims to solve the technical problem that the current subsurface wetland directly arranged in the channel will reduce the hydraulic radius of the channel and affect the flood discharge, and the purification effect is poor, while the floating island wetland has no sufficient matrix layer for the suspension state, and the purification effect is poor. The cantilever self-oxygenation underflow wetland device for purifying urban inland river rainwater runoff of the present invention includes a rainwater runoff water distribution system for inflowing rivers, a cantilever wall self-oxygenation underflow wetland system and a wetland drainage drop aeration system. Above the wetland on the inner wall of the urban inland river embankment, the cantilever self-oxygenating underflow wetland system is installed on the wall of the urban inland river embankment, and the wetland drainage and falling water aeration system is installed at the bottom of the cantilever self-oxygenating underflow wetland system. Advantages: This device will not reduce the hydraulic radius of the river and has good purification effect. The invention is applied to the field of purification of urban inland river rainwater.
Description
Technical field
The present invention relates to a kind of current wetland device, be specifically related to a kind of city inland river rainfall runoff and purify current wetland device.
Background technology
, at first stage of construction, there is one or several city inland river in each city, and its major function is flood discharge in rainy season and urban sewage river.Along with the raising of the level of urbanization, people are also more and more higher to environmental quality requirement, and the function of water body of city inland river is also changed into view and flood discharge river by blowdown flood discharge river.But because the water quality of the first rain in city is poor, rainwater after surface runoff approaches or surpasses the water pollution degree of municipal wastewater treatment plant, average COD value is greater than 100mg/L, sometimes even up to 300mg/L, especially the level of nitrogen phosphorus is far away higher than national surface water body IV " water environment quality standard " water quality requirement (GB3838-2002), and the long-term a large amount of existence of pollutent in water body must cause water body blackout to foul, be difficult to realize the requirement of landscape water body.For this reason, the improvement city inland river that governments at all levels actively make great efforts, guarantees under the prerequisite of its water body flood discharge function, purifies beautifying water body, and becoming one beautiful landscape in city has become an important problem.
Inland river water quality based technique for in-situ remediation comprises: physical method: drainage dirt removal, and this method need to consume a large amount of Freshwater resources, and running cost is high; Chemical process: chemical flocculation, chemical flocculation treatment technology is a kind of by adding chemical agent removal aquifer pollution thing to reach the sewage disposal technology that improves water quality, but chemicals can produce to hydrobiont the secondary pollution of toxicity and the ecosystem, cause the application of this technology to have significant limitation, generally as jury, use; Microbial process: add microbial strains, by directly adding contaminant degradation bacterium to polluted-water, thereby suppress organic contamination and removal body eutrophication material in harmful microbe growth, activity and degraded waters, this method length consuming time, condition harshness, and specific microorganism can only absorb, utilizes, degrades and transform the chemical substance of particular type, is not that all pollutents can be utilized by microorganism.Above three kinds of original positions technology of administering all exists running cost high, lacks long-lasting; Wetland ecological method: Wetland ecological Pollution abatement technology is mainly to utilize this complex ecosystem of Wetland Substrate, microorganism and plant to carry out physics, chemistry and biological triple role to sewage, then absorb and decompose and microbiological deterioration realizes the method for sewage purification by filtration, absorption, plant.The material that microorganism decomposing organic pollutant in plant and Wetland Substrate becomes short grained ionic state is absorbed by plant assimilation, becomes the nutritive substance of plant-growth, in the time of Promoting plant growth, purifies water, and realizes ecological water quality purification.It is low, long-lasting good that Wetland ecological original position improvement technology has running cost, the advantages such as landscape effect is good, but the runoff wetland or the floating island wetland that are directly arranged in river course can occupy river course flood discharge passage, reduce the hydraulic radius in river course, affect flood discharge, and be difficult to implement on a large scale.Traditional current wetland, first due to its thicker and complicated hypothallus structure, be arranged in and in river course, not only reduce hydraulic radius, increase head loss and affect flood discharge, and flood passage sluicing also can destroy wetland structure, simultaneously traditional current wetland is because its matrix structure is that upper strata small-particle is to the oarse-grained grating mode of lower floor, the matrix granule of ingress of air layer is little above, matrix granule is below large, oxygen transmission effect is poor, in Wetland Substrate, mostly be anaerobic environment, decontamination effect improving is poor, be unfavorable for the removal of pollutent, and the small-particle matrix on upper strata, under the effect of rain drop erosion, easily run off, when Pollutant levels are high, also very easily stop up.If be wetland oxygenation and adopt aerator, not only increase running cost, on river course, arrange that aerator is also difficult to management and operation.Traditional floating island wetland is in order to reduce weight, realize good levitated state, generally there is no sufficient hypothallus, rely on the absorption of the root system of wetland plant prosperity completely, and the ecosystem that the microbial film that forms of root system surface forms purifies water, treatment effect is far worse than current wetland.
In sum, the hydraulic radius that current current wetland is directly arranged in meeting reduction river course in river course affects flood discharge, and decontamination effect improving is poor, and floating island wetland does not have sufficient hypothallus in order to realize suspended state, and decontamination effect improving is poor.
Summary of the invention
The present invention will solve current current wetland to be directly arranged in river course the hydraulic radius that can reduce river course and to affect flood discharge, and decontamination effect improving is poor, and floating island wetland does not have sufficient hypothallus in order to realize suspended state, the technical problem that decontamination effect improving is poor, and provide a kind of city inland river rainfall runoff to purify suspended wall from oxygenation current wetland device.
A kind of city inland river rainfall runoff of the present invention purifies suspended wall from oxygenation current wetland device, and it includes river rainfall runoff water distribution system, suspended wall from oxygenation subsurface flow wetland system and wetland drainage drop water aeration system; Describedly enter river rainfall runoff water distribution system and be arranged on city inland river dykes and dams inwall, suspended wall is under oxygenation subsurface flow wetland system installation fixed system is arranged on river rainfall runoff water distribution system and on city inland river dykes and dams wall, wetland drainage drop water aeration system is arranged on suspended wall from the bottom of oxygenation subsurface flow wetland system, and wetland drainage drop water aeration system is arranged perpendicular to city inland river dykes and dams inwall;
The described river rainfall runoff water distribution system that enters is comprised of rainwater drainage pipe and perforation water distributor, suspended wall is comprised of from oxygenation porous pipe network and wetland plant wetland PVC cell body, cell body river course suspended wall installation fixed system, antiscour top layer cobble water distribution layer, Wetland Substrate structure, wetland from oxygenation subsurface flow wetland system, and wetland drainage drop water aeration system is comprised of 6 wetland bottoms infiltration drainings perforation tube banks, described perforation water distributor is connected with rainwater drainage pipe is vertical, perforation water distributor is parallel to city inland river dykes and dams and arranges, perforation water distributor adopts pipe collar to be fixed on city inland river dykes and dams wall, wetland PVC cell body is installed fixed system by cell body river course suspended wall and is arranged on city inland river dykes and dams inwall, wetland PVC cell body sets gradually wetland plant from top to bottom, antiscour top layer cobble water distribution layer, Wetland Substrate structure, wetland is from oxygenation porous pipe network and wetland bottom infiltration draining perforation tube bank, wetland PVC cell body front portion is arranged and is placed in wetland bottom infiltration draining perforation tube bank perpendicular to city inland river dykes and dams inwall, wetland bottom infiltration draining perforation tube bank outlet is positioned at river course one side, wetland bottom infiltration draining perforation tube bank is in the mouth of pipe sealing of wetland inside.
City inland river rainfall runoff of the present invention purifies suspended wall can install many covers according to Rainfall runoff from oxygenation current wetland device.
Beneficial effect of the present invention:
One, the present invention has realized the improvement of original position Wetland ecological and purification in the river course that enters river rainfall runoff, the present invention is without extra expropriation of land, construction and running cost are low, long-lasting good, there is height and purify the effect into river rainfall runoff, to the purification efficiency that flows into rainwater COD higher than 95%, BOD purification efficiency higher than 85%, SS purification efficiency higher than 95%, TN purification efficiency higher than 70%, TP purification efficiency is good higher than 50% landscape effect;
Two, wetland suspended wall of the present invention is arranged, can not reduce the flood discharge hydraulic radius in river course, does not affect flood discharge, and the high-order draining of wetland can also form effective drop water aeration, increases the dissolved oxygen concentration 20% of river water body;
Three, suspended wall wetland of the present invention adopts from the design of oxygenation ventilation gas distribution system, improves the dissolved oxygen concentration of Wetland Substrate, improves the treatment efficiency of wetland, prevents the Wetland clogging of operational process.Guarantee into river matter higher than V class water quality, each city inland river rainfall runoff of the present invention purifies suspended wall and is about 1 ton/day from the maximum Rainfall runoff of processing of oxygenation current wetland device;
Four, city inland river rainfall runoff purification current wetland apparatus structure of the present invention is simple, and flexibly, dismounting is easy to maintenance in assembling, and south, the north all can adopt.
Accompanying drawing explanation
Fig. 1 is that city inland river rainfall runoff of the present invention purifies suspended wall from the left view of oxygenation current wetland device, 1 for entering river rainfall runoff water distribution system, 2 is that suspended wall is from oxygenation subsurface flow wetland system, 3 is wetland drainage drop water aeration system, 4 is river course, 5 is city inland river dykes and dams, and 2-2 is that cell body river course suspended wall is installed fixed system, and the direction of arrow is rainfall runoff direction;
Fig. 2 is the structural representation that enters river rainfall runoff water distribution system of the present invention, and 1-1 is rainwater drainage pipe, and 1-2 is perforation water distributor, and the direction of arrow is rainfall runoff direction;
Fig. 3 is the C-C sectional view of Fig. 2;
Fig. 4 be suspended wall of the present invention from the vertical view of oxygenation subsurface flow wetland system 2,2-1 is wetland PVC cell body, 2-5-1 is standpipe, 2-5-2 is porous horizontal transverse-pipe, 3 is wetland drainage drop water aeration system;
Fig. 5 is the A-A sectional view of Fig. 4, and 2-3 is antiscour top layer cobble water distribution layer, and 2-4-1 is the mixture of cinder slag and loam, and 2-4-2 is the mixture of thin lime-ash and loam, and 2-6 is wetland plant, and 2-5-1 is standpipe, and 2-5-2 is porous horizontal transverse-pipe;
Fig. 6 is the B-B sectional view of Fig. 4;
Fig. 7 is the C-C sectional view of Fig. 4;
Fig. 8 be wetland of the present invention from the structural representation of oxygenation porous pipe network 2-5,2-5-1 is standpipe, 2-5-2 is porous horizontal transverse-pipe, the direction of arrow is air-flow direction;
Fig. 9 is the b-b sectional view of Fig. 8;
Figure 10 is the structure iron of wetland bottom infiltration draining perforation tube bank 3-1 of the present invention;
Figure 11 is the a-a sectional view of Figure 10;
Figure 12 is the sectional structure chart of the wetland drainage drop water aeration system of test one, and 3-1 is wetland bottom infiltration draining perforation tube bank, and 3-2 is fibre knitting cloth, and 3-3 is gravel.
Embodiment
Embodiment one: a kind of city inland river rainfall runoff of present embodiment purifies suspended wall from oxygenation current wetland device, and it includes river rainfall runoff water distribution system 1, suspended wall from oxygenation subsurface flow wetland system 2 and wetland drainage drop water aeration system 3; Describedly enter river rainfall runoff water distribution system 1 and be arranged on city inland river dykes and dams 5 inwalls, suspended wall is under oxygenation subsurface flow wetland system 2 is arranged on river rainfall runoff water distribution system 1 and on city inland river dykes and dams 5 walls, wetland drainage drop water aeration system 3 is arranged on suspended wall from the bottom of oxygenation subsurface flow wetland system 2, and wetland drainage drop water aeration system 3 is arranged perpendicular to city inland river dykes and dams inwall;
The described river rainfall runoff water distribution system 1 that enters is comprised of rainwater drainage pipe 1-1 and perforation water distributor 1-2, suspended wall is comprised of from oxygenation porous pipe network and wetland plant 2-6 wetland PVC cell body 2-1, cell body river course suspended wall installation fixed system 2-2, antiscour top layer cobble water distribution layer 2-3, Wetland Substrate structure, wetland from oxygenation subsurface flow wetland system 2, and wetland drainage drop water aeration system 3 is comprised of 6 wetland bottoms infiltration drainings perforation tube bank 3-1, described perforation water distributor 1-2 is connected with rainwater drainage pipe 1-1 is vertical, perforation water distributor 1-2 is parallel to city inland river dykes and dams 5 and arranges, perforation water distributor 1-2 adopts pipe collar to be fixed on the wall of city inland river dykes and dams 5, wetland PVC cell body 2-1 installs fixed system 2-2 by cell body river course suspended wall and is arranged on the inwall of city inland river dykes and dams 5, in wetland PVC cell body 2-1, set gradually from top to bottom wetland plant 2-6, antiscour top layer cobble water distribution layer 2-3, Wetland Substrate structure, wetland is from oxygenation porous pipe network and wetland bottom infiltration draining perforation tube bank 3-1, wetland bottom infiltration draining perforation tube bank 3-1 arranges and is placed on wetland PVC cell body 2-1 front portion perpendicular to city inland river dykes and dams 5 inwalls, wetland bottom infiltration draining perforation tube bank 3-1 outlet is positioned at river course 4 one sides, wetland bottom infiltration draining perforation tube bank 3-1 is in the mouth of pipe sealing of wetland inside.
The beneficial effect of present embodiment:
One, the present invention has realized the improvement of original position Wetland ecological and purification in the river course that enters river rainfall runoff, the present invention is without extra expropriation of land, construction and running cost are low, long-lasting good, there is height and purify the effect into river rainfall runoff, to the purification efficiency that flows into rainwater COD higher than 95%, BOD purification efficiency higher than 85%, SS purification efficiency higher than 95%, TN purification efficiency higher than 70%, TP purification efficiency is good higher than 50% landscape effect;
Two, wetland suspended wall of the present invention is arranged, can not reduce the flood discharge hydraulic radius in river course, does not affect flood discharge, and the high-order draining of wetland can also form effective drop water aeration, increases the dissolved oxygen value of river water body;
Three, suspended wall wetland of the present invention adopts from the design of oxygenation ventilation gas distribution system, improves the dissolved oxygen concentration of Wetland Substrate, improves the treatment efficiency of wetland, prevents the Wetland clogging of operational process.Guarantee that into river matter, higher than V class water quality, each is of the present invention;
Four, city inland river rainfall runoff purification current wetland apparatus structure of the present invention is simple, and flexibly, dismounting is easy to maintenance in assembling, and south, the north all can adopt.
Embodiment two: present embodiment is different from embodiment one: be uniformly distributed along its length a rows of openings on second circumference of perforation water distributor 1-2, opening diameter is 4mm, and other parameters of perforation water distributor 1-2 depend on peak value water displacement with the quantity of perforation water distributor 1-2.Other are identical with embodiment one.
Embodiment three: present embodiment is different from one of embodiment one or twos': it is 1m * 1m * 0.8m that wetland PVC cell body 2-1 is of a size of long * wide * high, the long 1m of perforation water distributor (1-2), the PVC sheet metal thickness of wetland PVC cell body 2-1 is 10mm, and wetland PVC cell body 2-1 is arranged on the position of 10cm～20cm under perforation water distributor 1-2.Other are identical with one of embodiment one or two.
Embodiment four: present embodiment is different from one of embodiment one to three: the cobble diameter in antiscour top layer cobble water distribution layer 2-3 is 3cm～5cm, antiscour top layer cobble water distribution layer 2-3 thickness is 10cm.Other are identical with one of embodiment one to three.
Embodiment five: present embodiment is different from one of embodiment one to four: Wetland Substrate structure is divided into two-layer up and down, the thin lime-ash that the thickness of the cinder slag that the thickness that is respectively upper strata is 30cm and the mixture 2-4-1 of loam and lower floor is 30cm and the mixture 2-4-2 of loam, the volume ratio of lime-ash and loam is 4:1, the particle diameter of cinder slag is 5mm～10mm, and the particle diameter of thin lime-ash is 3mm～5mm.Other is identical with one of embodiment one to four.
Embodiment six: present embodiment is different from one of embodiment one to five: wetland is 3cm from oxygenation porous pipe network by 4 diameters, and the vertical standpipe 2-5-1 of wetland top layer that stretches out forms with the porous horizontal transverse-pipe 2-5-2 that the bilevel diameter in vertical 8 pieces minutes of being connected is with it 3cm, porous horizontal transverse-pipe 2-5-2 and city inland river dykes and dams 5 inwalls are arranged in parallel, porous horizontal transverse-pipe 2-5-2 upper strata is positioned at the position apart from wetland PVC cell body 2-1 bottom 30cm, porous horizontal transverse-pipe 2-5-2 lower floor is positioned at the bottom of wetland PVC cell body 2-1, porous horizontal transverse-pipe 2-5-2 length is 1m, 4 standpipe 2-5-1 are all positioned at the middle part of porous horizontal transverse-pipe 2-5-2, level interval between porous horizontal transverse-pipe 2-5-2 is 20cm, porous horizontal transverse-pipe 2-5-2 adopts fibre knitting cloth 2-5-3 parcel, on the circumference of porous horizontal transverse-pipe 2-5-2, prolonging its length direction, to be uniformly distributed four rows of openings and each perforate and city inland river dykes and dams 5 inwalls at 45 °, the opening diameter of porous horizontal transverse-pipe 2-5-2 is that 2mm and percentage of open area are 60%～70%.Other is identical with one of embodiment one to five.
Embodiment seven: present embodiment is different from one of embodiment one to six: wetland plant 2-6 is any one in Canna generalis Bailey or fairy bamboo.Other is identical with one of embodiment one to six.
Embodiment eight: present embodiment is different from one of embodiment one to seven: prolong its length direction on the upper semicircumference of wetland bottom infiltration draining perforation tube bank 3-1 and be uniformly distributed two rows of openings, each perforate and vertical direction are at 45 °, opening diameter is 4mm, the percentage of open area of wetland bottom infiltration draining perforation tube bank 3-1 is 50%, length is 20cm, level interval is 20cm, adopt fibre knitting cloth 3-2 parcel, the gravel 3-3 that the scope filler particles diameter of the outer 5mm～20mm of fibre knitting cloth 3-2 is 5mm.Other is identical with one of embodiment one to seven.
It is as follows from the principle of oxygenation current wetland device that described city inland river rainfall runoff purifies suspended wall:
Rainfall runoff is through rainwater drainage pipe 1-1, through perforation water distributor, 1-2 enters suspended wall in oxygenation subsurface flow wetland system 2, enter suspended wall and pass through antiscour top layer cobble water distribution layer 2-3 time water again from the rainwater of oxygenation subsurface flow wetland system 2, the Wetland Substrate structure that inflow consists of lime-ash and loam, filtration and absorption by lime-ash vesicular structure in Wetland Substrate structure are adsorbed on Wetland Substrate structure 2-4 inside by the pollutent in water body, micropopulation in Wetland Substrate structure carries out aerobic decomposition under the cooperation of oxygenation porous pipe network at wetland to pollutent, in the inside of Wetland Substrate structure particles, be generally hold concurrently oxygen and anaerobic environment, under the synergy of oxygen and anerobe of holding concurrently, effectively decompose macrobead organism (protein, fat, polysaccharide) enter small molecules, by wetland plant, 2-6 absorbs, promote wetland plant 2-6 growth, porous matrix and plant thereof the heavy metal in can also active adsorption water body simultaneously, fully purify water.Water quality after purification is collected through the wetland drainage drop water aeration system 3 of over-wet land bottom, through discharge outlet, discharge, because purifying suspended wall, installs from a high position for oxygenation current wetland device city inland river rainfall runoff, the rainwater secondary of discharging forms drop water aeration in river course, has improved the dissolved oxygen levels that enters river rainwater.Rainfall runoff flows into river course after processing by wetland again, can permanently effectively guarantee that the water body in river course keeps IV class water quality.
By following verification experimental verification beneficial effect of the present invention:
Test one: the city inland river rainfall runoff of this test purifies suspended wall from oxygenation current wetland device, and it includes river rainfall runoff water distribution system 1, suspended wall from oxygenation subsurface flow wetland system 2 and wetland drainage drop water aeration system 3; Describedly enter river rainfall runoff water distribution system 1 and be arranged on city inland river dykes and dams 5 inwalls tops, suspended wall is under oxygenation subsurface flow wetland system 2 is arranged on river rainfall runoff water distribution system 1 and on city inland river dykes and dams 5 walls, wetland drainage drop water aeration system 3 is arranged on suspended wall from the bottom of oxygenation subsurface flow wetland system 2, and wetland drainage drop water aeration system 3 is arranged perpendicular to city inland river dykes and dams inwall;
The described river rainfall runoff water distribution system 1 that enters is comprised of rainwater drainage pipe 1-1 and perforation water distributor 1-2, suspended wall is comprised of from oxygenation porous pipe network and wetland plant 2-6 wetland PVC cell body 2-1, cell body river course suspended wall installation fixed system 2-2, antiscour top layer cobble water distribution layer 2-3, Wetland Substrate structure, wetland from oxygenation subsurface flow wetland system 2, and wetland drainage drop water aeration system 3 is comprised of 6 wetland bottoms infiltration drainings perforation tube bank 3-1, described perforation water distributor 1-2 is connected with rainwater drainage pipe 1-1 is vertical, perforation water distributor 1-2 is parallel to city inland river dykes and dams 5 and arranges, perforation water distributor 1-2 adopts pipe collar to be fixed on the wall of city inland river dykes and dams 5, wetland PVC cell body 2-1 installs fixed system 2-2 by cell body river course suspended wall and is arranged on the inwall of city inland river dykes and dams 5, in wetland PVC cell body 2-1, be followed successively by from top to bottom wetland plant 2-6, antiscour top layer cobble water distribution layer 2-3, Wetland Substrate structure, wetland is from oxygenation porous pipe network and wetland bottom infiltration draining perforation tube bank 3-1, wetland bottom infiltration draining perforation tube bank 3-1 arranges and is placed on wetland PVC cell body 2-1 front portion perpendicular to city inland river dykes and dams 5 inwalls, wetland bottom infiltration draining perforation tube bank 3-1 outlet is positioned at river course 4 one sides, wetland bottom infiltration draining perforation tube bank 3-1 is in the mouth of pipe sealing of wetland inside.The long 1m of perforation water distributor 1-2, on second circumference of perforation water distributor 1-2, be uniformly distributed along its length a rows of openings, each perforate and city inland river dykes and dams 5 inwalls are at 45 °, opening diameter is 4mm, the percentage of open area of perforation water distributor 1-2 is 60%, it is long * wide * high that wetland PVC cell body 2-1 is of a size of is 1m * 1m * 0.8m, the PVC sheet metal thickness of wetland PVC cell body 2-1 is 10mm, wetland PVC cell body 2-1 is arranged on the position of 10cm under perforation water distributor 1-2, cobble diameter in antiscour top layer cobble water distribution layer 2-3 is 4cm, antiscour top layer cobble water distribution layer 2-3 thickness is 10cm, Wetland Substrate structure is divided into two-layer up and down, the thin lime-ash that the thickness of the cinder slag that the thickness that is respectively upper strata is 30cm and the mixture 2-4-1 of loam and lower floor is 30cm and the mixture 2-4-2 of loam, the volume ratio of lime-ash and loam is 4:1, the particle diameter of cinder slag is 10mm, the particle diameter of thin lime-ash is 3mm, the standpipe 2-5-1 that vertically stretches out wetland top layer that wetland is 3cm from oxygenation porous pipe network by 4 diameters forms with the porous horizontal transverse-pipe 2-5-2 that 8 pieces minutes bilevel diameters that are vertically connected are with it 3cm, porous horizontal transverse-pipe 2-5-2 and city inland river dykes and dams 5 inwalls are arranged in parallel, porous horizontal transverse-pipe 2-5-2 upper strata is positioned at the position apart from wetland PVC cell body 2-1 bottom 30cm, porous horizontal transverse-pipe 2-5-2 lower floor is positioned at the bottom of wetland PVC cell body 2-1, porous horizontal transverse-pipe 2-5-2 length is 1m, 4 standpipe 2-5-1 are all positioned at the middle part of porous horizontal transverse-pipe 2-5-2, level interval between porous horizontal transverse-pipe 2-5-2 is 20cm, porous horizontal transverse-pipe 2-5-2 adopts fibre knitting cloth 2-5-3 parcel, on the circumference of porous horizontal transverse-pipe 2-5-2, prolonging its length direction, to be uniformly distributed four rows of openings and each perforate and city inland river dykes and dams 5 inwalls at 45 °, the opening diameter of porous horizontal transverse-pipe 2-5-2 is that 2mm and percentage of open area are 60%, wetland plant 2-6 is Canna generalis Bailey, on the upper semicircumference of wetland bottom infiltration draining perforation tube bank 3-1, prolong its length direction and be uniformly distributed two rows of openings, each perforate and vertical direction are at 45 °, opening diameter is 4mm, the percentage of open area of wetland bottom infiltration draining perforation tube bank 3-1 is 50%, length is 20cm, level interval is 20cm, adopt fibre knitting cloth 3-2 parcel, the gravel 3-3 that the scope filler particles diameter of the outer 5mm～20mm of fibre knitting cloth 3-2 is 5mm.
The purification efficiency that city inland river rainfall runoff by this test purifies the rainwater COD that suspended wall processed from oxygenation current wetland device is 98%, BOD purification efficiency is 90%, SS purification efficiency is 98%, TN purification efficiency is 80%, TP purification efficiency is 70%, the dissolved oxygen concentration 20% of increase river water body.
Claims (8)
1. city inland river rainfall runoff purifies suspended wall from an oxygenation current wetland device, it is characterized in that city inland river rainfall runoff purifies suspended wall and includes river rainfall runoff water distribution system (1), suspended wall from oxygenation subsurface flow wetland system (2) and wetland drainage drop water aeration system (3) from oxygenation current wetland device; Describedly enter river rainfall runoff water distribution system (1) and be arranged on city inland river dykes and dams (5) inwall, suspended wall is under oxygenation subsurface flow wetland system (2) is arranged on river rainfall runoff water distribution system (1) and on city inland river dykes and dams (5) wall, wetland drainage drop water aeration system (3) is arranged on suspended wall from the bottom of oxygenation subsurface flow wetland system (2), and wetland drainage drop water aeration system (3) is arranged perpendicular to city inland river dykes and dams inwall;
The described river rainfall runoff water distribution system (1) that enters is comprised of rainwater drainage pipe (1-1) and perforation water distributor (1-2), suspended wall is comprised of from oxygenation porous pipe network and wetland plant (2-6) wetland PVC cell body (2-1), cell body river course suspended wall installation fixed system (2-2), antiscour top layer cobble water distribution layer (2-3), Wetland Substrate structure, wetland from oxygenation subsurface flow wetland system (2), and wetland drainage drop water aeration system (3) is comprised of 6 wetland bottoms infiltration drainings perforation tube banks (3-1), described perforation water distributor (1-2) and vertical being connected of rainwater drainage pipe (1-1), perforation water distributor (1-2) is parallel to city inland river dykes and dams (5) and arranges, perforation water distributor (1-2) adopts pipe collar to be fixed on the wall of city inland river dykes and dams (5), wetland PVC cell body (2-1) is installed fixed system (2-2) by cell body river course suspended wall and is arranged on the inwall of city inland river dykes and dams (5), in wetland PVC cell body (2-1), set gradually from top to bottom wetland plant (2-6), antiscour top layer cobble water distribution layer (2-3), Wetland Substrate structure, wetland is from oxygenation porous pipe network and wetland bottom infiltration draining perforation tube bank (3-1), wetland PVC cell body (2-1) front portion is arranged and be placed on to wetland bottom infiltration draining perforation tube bank (3-1) perpendicular to city inland river dykes and dams (5) inwall, wetland bottom infiltration draining perforation tube bank (3-1) outlet is positioned at river course (4) one sides, wetland bottom infiltration draining perforation tube bank (3-1) is in the mouth of pipe sealing of wetland inside.
2. a kind of city inland river rainfall runoff according to claim 1 purifies suspended wall from oxygenation current wetland device, it is characterized in that boring a hole on second circumference of water distributor 1-2 and be uniformly distributed along its length a rows of openings, each perforate and city inland river dykes and dams (5) inwall are at 45 °, and opening diameter is 4mm.
3. a kind of city inland river rainfall runoff according to claim 1 purifies suspended wall from oxygenation current wetland device, it is characterized in that wetland PVC cell body (2-1) is of a size of length * wide * high 1m * 1m * 0.8m of being, the long 1m of perforation water distributor (1-2), the PVC sheet metal thickness of wetland PVC cell body (2-1) is 10mm, and wetland PVC cell body (2-1) is arranged on the position of 10cm～20cm under perforation water distributor (1-2).
4. a kind of city inland river rainfall runoff according to claim 1 purifies suspended wall from oxygenation current wetland device, it is characterized in that the cobble diameter in antiscour top layer cobble water distribution layer (2-3) is 3cm～5cm, antiscour top layer cobble water distribution layer (2-3) thickness is 10cm.
5. a kind of city inland river rainfall runoff according to claim 1 purifies suspended wall from oxygenation current wetland device, it is characterized in that Wetland Substrate structure is divided into two-layer up and down, the thin lime-ash that the mixture (2-4-1) of the cinder slag that the thickness that is respectively upper strata is 30cm and loam and the thickness of lower floor are 30cm and the mixture (2-4-2) of loam, the volume ratio of lime-ash and loam is 4:1, the particle diameter of cinder slag is 5mm～10mm, and the particle diameter of thin lime-ash is 3mm～5mm.
6. a kind of city inland river rainfall runoff according to claim 1 purifies suspended wall from oxygenation current wetland device, it is characterized in that the standpipe that vertically stretches out wetland top layer (2-5-1) that wetland is 3cm from oxygenation porous pipe network by 4 diameters forms with the porous horizontal transverse-pipe (2-5-2) that 8 pieces minutes bilevel diameters that are vertically connected are with it 3cm, porous horizontal transverse-pipe (2-5-2) is arranged in parallel with city inland river dykes and dams (5) inwall, porous horizontal transverse-pipe (2-5-2) upper strata is positioned at the position apart from wetland PVC cell body (2-1) bottom 30cm, porous horizontal transverse-pipe (2-5-2) lower floor is positioned at the bottom of wetland PVC cell body (2-1), porous horizontal transverse-pipe (2-5-2) length is 1m, 4 standpipes (2-5-1) are all positioned at the middle part of porous horizontal transverse-pipe (2-5-2), level interval between porous horizontal transverse-pipe (2-5-2) is 20cm, porous horizontal transverse-pipe (2-5-2) adopts fibre knitting cloth (2-5-3) parcel, on the circumference of porous horizontal transverse-pipe (2-5-2), prolonging its length direction, to be uniformly distributed four rows of openings and each perforate and city inland river dykes and dams (5) inwall at 45 °, the opening diameter of porous horizontal transverse-pipe (2-5-2) is that 2mm and percentage of open area are 60%～70%.
7. a kind of city inland river rainfall runoff according to claim 1 purifies suspended wall from oxygenation current wetland device, it is characterized in that wetland plant (2-6) is any one in Canna generalis Bailey or fairy bamboo.
8. a kind of city inland river rainfall runoff according to claim 1 purifies suspended wall from oxygenation current wetland device, it is characterized in that on the upper semicircumference of wetland bottom infiltration draining perforation tube bank (3-1), prolonging its length direction is uniformly distributed two rows of openings, each perforate and vertical direction are at 45 °, opening diameter is 4mm, the percentage of open area of wetland bottom infiltration draining perforation tube bank (3-1) is 50%, length is 20cm, level interval is 20cm, adopt fibre knitting cloth (3-2) parcel, the gravel (3-3) that the scope filler particles diameter of the outer 5mm～20mm of fibre knitting cloth (3-2) is 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310532608.4A CN103524006B (en) | 2013-10-31 | 2013-10-31 | Urban inland river rainfall runoff purification suspended wall self-oxygenating subsurface wetland device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310532608.4A CN103524006B (en) | 2013-10-31 | 2013-10-31 | Urban inland river rainfall runoff purification suspended wall self-oxygenating subsurface wetland device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103524006A true CN103524006A (en) | 2014-01-22 |
| CN103524006B CN103524006B (en) | 2014-12-10 |
Family
ID=49926426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310532608.4A Active CN103524006B (en) | 2013-10-31 | 2013-10-31 | Urban inland river rainfall runoff purification suspended wall self-oxygenating subsurface wetland device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103524006B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104512967A (en) * | 2014-12-24 | 2015-04-15 | 哈尔滨工业大学 | Cooperatively-intensified denitrifying and dephosphorizing ecological sewage treatment device and water purifying method |
| CN105399224A (en) * | 2015-12-01 | 2016-03-16 | 中国科学院、水利部成都山地灾害与环境研究所 | Efficient drop water oxygen exposing system and method for purification of domestic wastewater |
| CN105565589A (en) * | 2015-12-14 | 2016-05-11 | 哈尔滨工业大学 | Built-in biochemical-ecological system based on in-river rainwater runoff purification river bank |
| CN107935306A (en) * | 2017-11-28 | 2018-04-20 | 中国市政工程中南设计研究总院有限公司 | A kind of combined in-situ gravel bed sewage treatment facility |
| CN108483646A (en) * | 2018-04-20 | 2018-09-04 | 同济大学 | The low influence processing method in circulation oxygenation urban hard revetment river and its device |
| CN113683259A (en) * | 2021-08-19 | 2021-11-23 | 中国一冶集团有限公司 | Anti-blocking ecological gravel bed wetland system and use method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101549937A (en) * | 2009-05-08 | 2009-10-07 | 云南省环境科学研究院 | Water quality in-situ purification method in river estuary |
| CN101643278A (en) * | 2009-08-24 | 2010-02-10 | 重庆大学 | Subsurface flow constructed wetland sewage treatment system by drop water aeration oxygenation |
| KR100944122B1 (en) * | 2008-12-03 | 2010-02-24 | 신강하이텍(주) | Artificial wetland that can simultaneously process rainfall runoff and normal base flow |
| CN201520703U (en) * | 2009-09-10 | 2010-07-07 | 北京市水利科学研究所 | Rainwater purification system at rainwater outlet to river |
| US20130048557A1 (en) * | 2011-08-22 | 2013-02-28 | Modular Wetland Systems, Inc. | Dual-Chambered Wetland Biofilter Treatment System |
-
2013
- 2013-10-31 CN CN201310532608.4A patent/CN103524006B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100944122B1 (en) * | 2008-12-03 | 2010-02-24 | 신강하이텍(주) | Artificial wetland that can simultaneously process rainfall runoff and normal base flow |
| CN101549937A (en) * | 2009-05-08 | 2009-10-07 | 云南省环境科学研究院 | Water quality in-situ purification method in river estuary |
| CN101643278A (en) * | 2009-08-24 | 2010-02-10 | 重庆大学 | Subsurface flow constructed wetland sewage treatment system by drop water aeration oxygenation |
| CN201520703U (en) * | 2009-09-10 | 2010-07-07 | 北京市水利科学研究所 | Rainwater purification system at rainwater outlet to river |
| US20130048557A1 (en) * | 2011-08-22 | 2013-02-28 | Modular Wetland Systems, Inc. | Dual-Chambered Wetland Biofilter Treatment System |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104512967A (en) * | 2014-12-24 | 2015-04-15 | 哈尔滨工业大学 | Cooperatively-intensified denitrifying and dephosphorizing ecological sewage treatment device and water purifying method |
| CN105399224A (en) * | 2015-12-01 | 2016-03-16 | 中国科学院、水利部成都山地灾害与环境研究所 | Efficient drop water oxygen exposing system and method for purification of domestic wastewater |
| CN105399224B (en) * | 2015-12-01 | 2018-04-06 | 中国科学院、水利部成都山地灾害与环境研究所 | A kind of efficient drop for purifying domestic sewage exposes oxygen system and method |
| CN105565589A (en) * | 2015-12-14 | 2016-05-11 | 哈尔滨工业大学 | Built-in biochemical-ecological system based on in-river rainwater runoff purification river bank |
| CN107935306A (en) * | 2017-11-28 | 2018-04-20 | 中国市政工程中南设计研究总院有限公司 | A kind of combined in-situ gravel bed sewage treatment facility |
| CN108483646A (en) * | 2018-04-20 | 2018-09-04 | 同济大学 | The low influence processing method in circulation oxygenation urban hard revetment river and its device |
| CN113683259A (en) * | 2021-08-19 | 2021-11-23 | 中国一冶集团有限公司 | Anti-blocking ecological gravel bed wetland system and use method thereof |
| CN113683259B (en) * | 2021-08-19 | 2023-02-07 | 中国一冶集团有限公司 | Anti-blocking ecological gravel bed wetland system and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103524006B (en) | 2014-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Shih et al. | The effect of water purification by oyster shell contact bed | |
| CN100482601C (en) | Ventilating and baffling artificial wetland simulator | |
| CN1292999C (en) | Efficient ecological waste water treating apparatus and method | |
| CN201372233Y (en) | Unpowered Integrated Constructed Wetland Sewage Treatment System | |
| CN105565589A (en) | Built-in biochemical-ecological system based on in-river rainwater runoff purification river bank | |
| CN103524006A (en) | Urban inland river rainfall runoff purification suspended wall self-oxygenating subsurface wetland device | |
| WO2021057555A1 (en) | System and method for artificial wetland water environment restoration | |
| CN105502828A (en) | Oligodynamic in-situ ecological restoration method of urban beheaded river | |
| CN107500474B (en) | A method and system for decentralized collection and treatment of rural domestic sewage | |
| CN101229937A (en) | High load capillary infiltration ditch system for domestic sewage treatment | |
| CN103343569A (en) | Ecological ditch for rural domestic sewage collection and pretreatment | |
| CN102001756B (en) | Stable surface flow wetland for preventing silting and sewage treatment method | |
| CN1235814C (en) | System and method for treating of sewage by combined artificial wet land | |
| CN107188379A (en) | A kind of domestic sewage of villages and small towns rural area landscape type total system | |
| CN204474503U (en) | A kind of country sewage drips the ecological canal treatment system of filter | |
| CN103043850A (en) | Riverway restoration system adopting intermittent aeration and PRB (permeable reactive barrier) | |
| CN102180567A (en) | Self-forming dynamic membrane biological reaction sewage treatment device | |
| CN211339184U (en) | Domestic sewage integrated treatment equipment based on steel slag ceramsite filler biological filter | |
| CN205382060U (en) | Villages and small towns domestic sewage ecologization oligodynamic treatment system | |
| CN102964033A (en) | Covering layer for water quality purification of leachate and enhanced oxidation of methane in landfill and treatment method of leachate | |
| CN100564280C (en) | But the high-rate filter of back flushing | |
| CN102557338A (en) | Method for treating rural domestic sewage | |
| CN105601043B (en) | A kind of domestic sewage of villages and small towns ecology microkinetic processing system | |
| CN208378648U (en) | A kind of river black and odorous water fast purification device | |
| CN207047066U (en) | A kind of domestic sewage of villages and small towns rural area landscape type total system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |