CN201981062U - Water distributing and collecting device for artificial wetland sewage treatment system - Google Patents

Water distributing and collecting device for artificial wetland sewage treatment system Download PDF

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Publication number
CN201981062U
CN201981062U CN201120061063XU CN201120061063U CN201981062U CN 201981062 U CN201981062 U CN 201981062U CN 201120061063X U CN201120061063X U CN 201120061063XU CN 201120061063 U CN201120061063 U CN 201120061063U CN 201981062 U CN201981062 U CN 201981062U
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China
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water
pipe
header
collecting
distributing
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Expired - Lifetime
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CN201120061063XU
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Chinese (zh)
Inventor
胡树超
王茂玉
曾立云
秦赏
周文哲
瞿为民
法林萃
曹虹
丁玮
黄利
陈卫东
宋健
王光鑫
赵家慧
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LANZHOU RAILWAY SURVEY AND DESIGN INSTITUTE Co Ltd
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LANZHOU RAILWAY SURVEY AND DESIGN INSTITUTE Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

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Abstract

The utility model relates to a water distributing and collecting device for an artificial wetland sewage treatment system. The water distributing and collecting device is structurally characterized in that a geomembrane is paved on the bottommost layer of an artificial wetland; bricks are paved at the upper part of the geomembrane; a water collecting pipe is arranged on the bricks; a biological filtering layer is arranged between the water collecting pipe and a water distributing pipe; a plant fixing layer is arranged at the upper part of the water distributing pipe; and the pipe space between the water distributing pipe and the water collecting pipe in the artificial wetland is 2m. According to the water distributing and collecting device, the water distributing pipe and the water collecting pipe are respectively fused with a fixing pipe into a whole; the water distributing pipe, the water collecting pipe and the fixing pipe are reformed into dual-layer pipelines; the inner-layer pipeline plays roles of distributing and collecting water; the outer-layer pipeline plays a role of fixing filtering materials; and the filtering materials in different graduations are filled between the inner-layer pipeline and the outer-layer pipeline to form a new water distributing and collecting system. The water distributing and collecting device has the advantages of simpleness in construction, easiness in building, uniformness in water distribution and collection and favorable effect; and the problems that a PVC (Polyvinyl Chloride) pipe of the traditional water collecting and distributing system is easy to break, the requirement for operation is higher and holes are blocked by fine particle materials are solved.

Description

Water distribution in the artificial marsh sewage treatment system and captation
Technical field
The utility model relates to water distribution and the captation in a kind of artificial marsh sewage treatment system.
Background technology
Constructed wetland waste water treatment technology is that the optimum combination of physics, chemistry and biological action in the imitated natural ecosystem is carried out.Its structure can be sketched and be: in certain length and width when in the depression of bottom surface gradient, fill the filler such as the stone of selected grating by certain gradient, some handling properties of plantation are good in the filler topsoil, the surviving rate height, growth cycle is long, the waterplant of attractive in appearance and economically valuable constitutes Wetlands ecosystems.Artificial swamp mainly is by action of microorganisms to the removal of organic pollutant, soil has huge specific surface area, form one deck microbial film on the soil particle surface, effluent stream is when particle surface, insoluble organism is by precipitation, filtration, adsorption and be trapped very soon, utilized by tiny organism then, the organism of solubility is removed by the metabolism of biomembranous absorption and microorganism.Plant is transmitted oxygen in soil, make dissolved oxygen in the artificial swamp be regional and change, and promptly presents aerobic, anoxic and anaerobic zone continuously.This system has advantages such as high-level efficiency, low investment, low operational cost, low maintenance technology, less energy-consumption, is characterized in that effluent quality is good, and operation maintenance management is convenient, and investment and working cost are low, and level of management require low.Artificial marsh sewage treatment system is born in Germany the 1950's.At present, adopt the sewage work of polluted water land method treatment technology to be widely used the America and Europe.China is later relatively to the research of artificial marsh sewage treatment system, and is just in the ascendant to this system process research.In recent years, along with the pay attention to day by day of people to environment protection and Wetland ecological, artificial swamp has been obtained significant progress in the environmental protection field, and various researchs and innovation continue to bring out.Fig. 1 is the traditional drowned flow artificial wet land water distribution and the Section Design figure that catchments, and as can be seen from the figure will fix with the gravel of different gradation around the water distributor, and immovable bed is in order to realize firm effect, often is designed to up-small and down-big trapezoidally, and difficulty of construction is big, requires high.The header particle diameter that is laid in is on the gravel bed of 20-30mm size, as supporting layer, the gravel bed that will cover one deck particle diameter above the header and be the 20-30mm size is as preventing that the short grained filtrate in upper strata from entering the tectum that header stops up eyelet, the gravel bed blocking-up coarse sand that re-lays one deck 5-10mm size above the tectum sinks, and influences the wetland filter effect.From construction angle, this water distribution and water gathering system, the cost height of requirement, operating technique complexity, the cost height of later stage operation maintenance.
Summary of the invention
Artificial swamp can be divided into surface current artificial wetland and drowned flow artificial wet land as a kind of ecotechnology according to structure.The surface current artificial wetland, the waterpower path is based on face of land plug-flow, and drowned flow artificial wet land can be divided into horizontal flow and vertical current constructed wetland according to the flow direction.At the vertical subsurface flow wetland sewage disposal, the purpose of this utility model aims to provide water distribution and the captation in a kind of artificial marsh sewage treatment system
The purpose of this utility model is to realize by following measure:
Water distribution in a kind of artificial marsh sewage treatment system and captation, form by water distributor and header, water distributor and header are embedded in the artificial swamp, it is characterized in that artificial swamp lowest layer laying anti seepage membrane, and fragment of brick is laid on the top of anti seepage membrane, place header on the fragment of brick, fill the gravel of 10-20mm therebetween, header top is biofilter material, and water distributor is laid on biofilter material top, water distributor top is the plant fixing layer, and water distributor and header are 2m in the artificial swamp tube spacing.
Above-mentioned water distributor pipe overcoat one fixed tube, profile is circular, fill filtrate in the middle of the inside and outside double-skin duct, internal layer water distributor blowing angle is 90 degree, under the perforate direction deflection, outer fixed tube eyelet spacing is 200~300mm, and eye diameter is 10mm, the perforate direction is positioned at the downside of tube hub line, and a water distributing pore is set under the fixed tube.
Above-mentioned header pipe overcoat one fixed tube, profile are circular, fill filtrate in the middle of the inside and outside double-skin duct, internal layer header blowing angle 180 degree, perforate direction level, outer fixed tube pitch of holes is 100mm, eye diameter is 15mm, and position of opening is parallel with medullary ray.
The beneficial effect of advantage of the present utility model and generation is:
1, the water distribution of the vertical current constructed wetland of the utility model employing both can be a continous way, can be again intermittent type.Intermittently water distribution is convenient to the water distribution uniformity when lower hydraulic load, utilizes the surface-area and the volume of wetland fully; The wetland medium is in the alternation of wetting and drying state in the intermittence water distribution, and air and water inlet circulating to a certain extent in medium have been played the aeration effect to the wetland medium, are that DO content is improved; When the wetland medium is in drying regime, gas in the medium hole plays barrier action for heat leakage, improved the temperature of total system, strengthened wetland surface convection current reoxygenation, promote microorganism growth, thereby aerobic repiration in the promotion wetland and nitrification are accelerated organic degraded, have improved the clearance of pollutent greatly.Simultaneously, adopt the intermittent type water distribution, be subjected to the influence of seasonal variation and influent concentration also smaller.Because the special water distribution manner of vertical current makes that in vertical current the DO concentration ratio is higher.
2, the utility model improves the collection water distribution system of traditional artificial swamp, and water distributor and header are one with fixed tube respectively.In the homogeneity that guarantees the collection water distribution system, be difficult for stopping up on the eyelet basis on water distributor and the header, make water outlet and catchment smoothly more, the influence of wetland plant root is further reduced, secondly easy construction is built easily, is safeguarded simply, operational safety.It is broken easily to have solved traditional collection water distribution system pvc pipe, and the fine particle filler stops up the problem of eyelet.
Description of drawings
Fig. 1 is the traditional drowned flow artificial wet land water distribution and the Section Design figure that catchments.
Fig. 2 is the drowned flow artificial wet land water distribution after improveing and the Section Design figure that catchments.
Fig. 3 is the eccentric water-distributing device sectional schematic diagram of Fig. 2.
Fig. 4 is the eccentric captation sectional schematic diagram of Fig. 2.
Fig. 5 is the water distribution fixed tube punching floor map in Fig. 3 water-distributing device.
Fig. 6 is the fixed tube punching floor map of catchmenting in Fig. 4 captation.
Embodiment
Below, in conjunction with the accompanying drawings the technical solution of the utility model is further described again:
Shown in Fig. 2-6, water distribution and captation in a kind of artificial swamp sewage disposal are made up of water distributor 2 and header 3, and water distributor 2 and header 3 are embedded in the artificial swamp.The artificial swamp lowermost layer is laid anti seepage membrane 5, and the thick fragment of brick 4 of 50mm is laid on the top of anti seepage membrane 5, places header 3 on the fragment of brick 4, fills the gravel 1 of 10-20mm therebetween "; The biofilter material layer 1 that header 3 tops laying 450mm is thick ', biofilter material is the coarse sand of microorganism.Biofilter material layer 1 ' top lay water distributor 2, water distributor 2 tops re-lay the coarse sand 1 of 2-5mm, thick 150mm as the plant fixing layer.Water distributor 2 and header 3 are 2m in the artificial swamp tube spacing.
Straight tube of pipe overcoat at perforation water distributor 2 directly is the fixed tube 6 of 2 times of water distributors, and filling filtrate in the middle of the inside and outside double-skin duct is that particle diameter is the gravel filling layer 7 of 20-30mm, and gravel plays the effect of filtering and supporting.Internal layer water distributor blowing angle is 90 degree, perforate direction deflection down, the section number of aperture is 2, the effect of outer fixed tube 6 is stationary cloth water pipes 2, the coarse sand that prevents filter material layer enters water distributor obstruction eyelet, will in time get rid of in addition and intake and avoid catchmenting in pipeline, therefore increases by a water distributing pore under fixed tube 6, effect is to make water distribution more evenly smooth, is difficult for stopping up.Fixed tube 6 pitchs of holes and eye diameter size ipsilateral, the section number of aperture is totally 3 altogether.Outer fixed tube pitch of holes is 200~300mm, and eye diameter is 10mm, and the perforate direction is positioned at the downside of tube hub line.
In like manner, in caliber of pipe overcoat of perforation header 3 fixed tube 8 that is 2 times of headers, filling filtrate in the middle of the inside and outside double-skin duct is that particle diameter is the gravel filling layer 7 of 20-30mm, and fixed tube 8 is used for fixing intermediate filler layer 7 and header 3, prevent that the upper strata filler from entering header 3, stop up eyelet.The perforate direction of header 3 and fixed tube 8 is parallel perforate, internal layer header blowing angle 180 degree, and perforate direction level, outer fixed tube 8 section number of aperture are with header 3.Outer fixed tube pitch of holes is 100mm, and eye diameter is 15mm, and position of opening is parallel with medullary ray.
The perforation size and the spacing of internal layer perforation water distributor 2 and header 3 depend on factors such as the water yield, water quality, hydraulic detention time.
For ease of the service area of construction and increase water distribution, water-distributing device is designed to eccentric water-distributing device, and promptly Li Mian the water distributor 2 and outer field fixed tube 6 centers of circle are not in same point, and the center of circle has increased the effective filtration area in cloth pool, good filtration effect on the upper side.In like manner, captation is designed to eccentric captation, promptly Li Mian the header 3 and outer field fixed tube 8 centers of circle are not in same point, the center of circle on the lower side, fixed tube perforate direction on the captation and header are on same horizontal plane, and the sewage after the processing enters in the header 3 through the filtration and infiltration effect of fixed tube 8 and middle filter material layer 7.

Claims (3)

1. water distribution and the captation in the artificial marsh sewage treatment system, form by water distributor (2) and header (3), water distributor (2) and header (3) are embedded in the artificial swamp, it is characterized in that artificial swamp lowermost layer laying anti seepage membrane (5), fragment of brick (4) is laid on the top of anti seepage membrane (5), fragment of brick (4) is gone up and is placed header (3), fill therebetween 10-20mm gravel (1 "); header (3) top is biofilter material (1 '); water distributor (2) is laid on the top of biofilter material (1 '); water distributor (2) top re-lays coarse sand (1), water distributor (2) and header (3) in the artificial swamp tube spacing for being respectively 2m.
2. according to water distribution and captation in the described a kind of artificial marsh sewage treatment system of claim 1, it is characterized in that water distributor (2) pipe overcoat one fixed tube (6), profile is circular, fill filtrate (7) in the middle of the inside and outside double-skin duct, internal layer water distributor (2) blowing angle is 90 degree, and perforate direction deflection down, outer fixed tube (6) pitch of holes is 200~300mm, eye diameter is 10mm, and the perforate direction is positioned at the downside of tube hub line, under the fixed tube (6) water distributing pore is set.
3. according to water distribution and captation in the described a kind of artificial marsh sewage treatment system of claim 1, it is characterized in that header (3) pipe overcoat one fixed tube (8), profile is circular, fill filtrate (7) in the middle of the inside and outside double-skin duct, internal layer header (3), blowing angle 180 degree, perforate direction level, outer fixed tube (8) pitch of holes is 100mm, and eye diameter is 15mm, position of opening and tube hub line parallel.
CN201120061063XU 2011-03-04 2011-03-04 Water distributing and collecting device for artificial wetland sewage treatment system Expired - Lifetime CN201981062U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120061063XU CN201981062U (en) 2011-03-04 2011-03-04 Water distributing and collecting device for artificial wetland sewage treatment system

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Application Number Priority Date Filing Date Title
CN201120061063XU CN201981062U (en) 2011-03-04 2011-03-04 Water distributing and collecting device for artificial wetland sewage treatment system

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Publication Number Publication Date
CN201981062U true CN201981062U (en) 2011-09-21

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104532863A (en) * 2014-12-26 2015-04-22 北京东方园林股份有限公司 Mould and method for laying granular impermeable materials
CN106277332A (en) * 2015-05-13 2017-01-04 兰州铁道设计院有限公司 A kind of artificial marsh sewage treatment system
CN106348537A (en) * 2016-10-26 2017-01-25 青岛大学 Wastewater treatment system based on constructed wetlands

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104532863A (en) * 2014-12-26 2015-04-22 北京东方园林股份有限公司 Mould and method for laying granular impermeable materials
CN104532863B (en) * 2014-12-26 2016-07-06 北京东方园林股份有限公司 The mould of a kind of graininess impervious material of mating formation and method
CN106277332A (en) * 2015-05-13 2017-01-04 兰州铁道设计院有限公司 A kind of artificial marsh sewage treatment system
CN106348537A (en) * 2016-10-26 2017-01-25 青岛大学 Wastewater treatment system based on constructed wetlands
CN106348537B (en) * 2016-10-26 2020-02-21 青岛大学 Sewage treatment system based on constructed wetland

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Granted publication date: 20110921

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