CN103848544B - A kind of multimedium subsurface infiltration is back to the treatment unit of water for scenic environment use - Google Patents
A kind of multimedium subsurface infiltration is back to the treatment unit of water for scenic environment use Download PDFInfo
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- CN103848544B CN103848544B CN201410108096.3A CN201410108096A CN103848544B CN 103848544 B CN103848544 B CN 103848544B CN 201410108096 A CN201410108096 A CN 201410108096A CN 103848544 B CN103848544 B CN 103848544B
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Abstract
Multimedium subsurface infiltration is back to a treatment unit for water for scenic environment use, and be made up of the water-distributing device and captation being embedded in underground, water-distributing device is positioned at the top of captation, and difference of altitude is 4m; The structure of water-distributing device is: multiple cloth tank arranged in parallel, and the periphery in each cloth tank lays geotextile, is filled with gravel, is enclosed with a water distributor, the tube wall of water distributor offers water hole in gravel in geotextile; Cloth tank has a gradient, slope aspect water outlet direction; The structure of captation is: multiple water leg arranged in parallel, is filled with gravel in water leg; One receives that water pipe is vertical with water leg lays, and this receipts water pipe and cloth tank are parallel laid, and on midperpendicular between two cloth tanks, the tube wall of receipts water pipe offers water hole; Receive water pipe and there is a gradient, slope aspect water outlet direction; In water-distributing device, one end of water distributor connects water inlet pipe, and the other end receiving the corresponding water inlet pipe of water pipe in captation connects rising pipe.
Description
Technical field
The present invention relates to a kind of waste disposal plant, be specifically related to the treatment unit that a kind of Wicresoft excavation multimedium subsurface infiltration is back to water for scenic environment use.
Background technology
China is the country of shortage of water resources, and in 669 cities, the whole nation, 400 long-term insufficient waters in city, have 110 city serious water shortages altogether, day water deficit reach 1,600 ten thousand m
3, year water deficit 6,000,000,000 m
3, due to lack of water, at least cause industrial output value to lose 2,000 hundred million yuan every year.Simultaneously because water resource optimal allocation is not in place, the low use of excellent water, ignores reuse of wastewater, causes the significant wastage of water resources.In the face of so severe situation, ensure sustainable and healthy development that is economic and society, ensure the sustainable use of water resources, Treated sewage reusing is imperative.
At present, increasing city is by sewage purification and reuse in consumable water of sight and amusement both at home and abroad, and this is not only beneficial to environment protection, reduces the expense of beautifying the environment, and is conducive to protecting the hydrobiological eubiosis.Thus, a kind of simple, with low cost, intermediate water reuse system of stablizing environmental protection is also badly in need of in China, after the purifying domestic sewage process of resident, is back to lavatory flushing, gardens, city fountain, environmental sanitation, greening etc.
Soil filtration device is usually used in villages and small towns sewage disposal, is that one stablizes effective Treated sewage reusing device, and this type case engineering is existing a lot, and practical application effect is better.But traditional percolating device quantities is relatively large, and construction cost is high, be thus badly in need of a kind of novel subsurface infiltration device, reduce construction cost, ensure effluent quality.
Summary of the invention
A kind of Wicresoft excavation multimedium subsurface infiltration is the object of the present invention is to provide to be back to the treatment unit of water for scenic environment use, to improve the defect existed in known technology.
For achieving the above object, multimedium subsurface infiltration provided by the invention is back to the treatment unit of water for scenic environment use, forms by being embedded in the supplementary unit of underground, water-distributing device and captation; Wherein:
The structure of supplementary unit is: be filled with compound calcium carbonate particle between upper and lower two-layer wire netting, compound calcium carbonate particle is the hollow sphere calcium carbonate granule adopting the normal temperature thermosol that synthesized by ethylene-vinyl acetate copolymer, coumarone-indene resin, synthesis paraffin resin etc. to become with calcium carbonate powders mixing manufacture, then seals after injection of methanol solution wherein; Compound calcium carbonate particle outer wall thickness is 2-30mm, and wherein the mass ratio of calcium carbonate and methyl alcohol is 15:8; Lay non-woven geotextile between compound calcium carbonate particle and lower floor's wire netting;
The structure of water-distributing device is: multiple cloth tank arranged in parallel, periphery in each cloth tank lays composite geo-membrane, and being filled with particle diameter in composite geo-membrane is 5-20cm gravel, is enclosed with a water distributor in gravel, one end of water distributor connects water inlet pipe, and the other end is closed; The tube wall of water distributor offers water hole every 10-20cm, and water hole diameter is 1-3cm;
Supplementary unit and water-distributing device are for arranging in the same way and being connected up and down;
Captation is arranged on the below of water-distributing device, is 4m with the difference of altitude of water-distributing device, is the soil of original position between the two;
The structure of captation is: multiple water leg arranged in parallel, those water legs and cloth tank be Vertical dimension arrange, being filled with particle diameter in water leg is 5-30cm gravel, in gravel throw in have slow-release pesticide; One to receive water pipe and cloth tank be parallel laid, and on midperpendicular between two the cloth tanks in centre; The one end of receiving water pipe corresponding water distributor connection water inlet pipe is closed, and the other end receiving water pipe connects rising pipe; The tube wall of receipts water pipe offers water hole every 10-20cm, and water hole diameter is 1-3cm;
Cloth tank and receipts water pipe have a gradient, the direction of slope aspect rising pipe, and the gradient of cloth tank is 1:300, and the gradient receiving water pipe is 1:200;
Rising pipe connects water collecting basin, have nitrate concentration detector, heating unit and sewage submersible sewage pump in water collecting basin, sewage submersible sewage pump connects a return line, and return line is embedded in the compound calcium carbonate particle of supplementary unit, offer water hole every 10-20cm, water hole diameter is 1-3cm.
In described treatment unit, water distributor adopts the pvc pipe of DN100, receives the pvc pipe that water pipe adopts DN150.
In described treatment unit, receive above water pipe and build one cut-pff wall, to prevent the water outlet overflow in the horizontal direction of water distributor.
In described treatment unit, ground topsoil kind is implanted with that soil removability is strong, the calamus with landscape effect, cattail, reed, Canna generalis Bailey, iris and power flower again.
In described treatment unit, the water inlet of water inlet pipe is through simple pretreated sanitary sewage.
In described treatment unit, sanitary sewage is the sewage in three common compartment septic tanks.
Treatment unit of the present invention, make is unique, wastewater purifying efficiency is excellent, only need excavate cloth tank, water leg and receipts water pipe sections in actual applications, construction cost is made to reduce about 50%, further reduce soil filtration plant construction expense, reduce the degree-of-difficulty factor that this efficient ecological refining plant of soil treatment is universal in various places.In addition, about there is the reuse water of 30% to recharge underground water, effectively can alleviate the short supply state of Groundwater Resource In Northwest China.
Accompanying drawing explanation
Fig. 1 is the front schematic view that Wicresoft of the present invention excavation multimedium subsurface infiltration is back to the treatment unit of water for scenic environment use;
Fig. 2 is the side schematic view that Wicresoft of the present invention excavation multimedium subsurface infiltration is back to the treatment unit of water for scenic environment use;
Fig. 3 is the diagrammatic cross-section along 1-1 line in Fig. 2;
Fig. 4 is the diagrammatic cross-section along 2-2 line in Fig. 2.
Main mark nomenclature in accompanying drawing:
Three compartment septic tanks 1; Water inlet pipe 2; Inlet valve 3; Plant 4; Surface soil 5; Wire netting 6; Compound calcium carbonate particle 7; Non-woven geotextile and wire netting 8; The gravel 9 of 5-20cm; Water distributor 10; Composite geo-membrane 11; BC soil 12; Soil 13; Receive water pipe 14; The gravel 15 of 5-30cm; Flowing water Valve 16; Rising pipe 17; Water collecting basin 18; Nitrate concentration detector 19; Heating unit and sewage submersible pump 20; Return line 21; Cut-pff wall 22.
Embodiment:
The present invention will be described in more detail below.Need to illustrate in advance, the actual conditions provided in following content and data, just in order to help understand and implement technical scheme of the present invention, instead of limitation of the invention.
Concrete structure of the present invention refers to Fig. 1, Fig. 2, Fig. 3 and Fig. 4.
Treatment unit provided by the invention, its primary structure comprises supplementary unit, water-distributing device and captation;
Supplementary unit and water-distributing device are for be connected up and down, and be 4m with the vertical depth difference of captation, centre is the soil of original position; The long 15m of entirety for the treatment of unit, wide 14m.
Supplementary unit lays wire netting 6 and non-woven geotextile and wire netting 8, the compound calcium carbonate particle 7 of both wire netting 6 and non-woven geotextile and the wire netting 8 central filler size hollow such as not, compound calcium carbonate particle is the hollow sphere calcium carbonate granule adopting normal temperature thermosol to become with calcium carbonate powders mixing manufacture, then seal after injection of methanol solution wherein, not etc., wherein the mass ratio of calcium carbonate and methyl alcohol is not 15:8 to compound calcium carbonate particle outer wall thickness 2-30mm.
In water-distributing device, one end of water distributor 10 connects water inlet pipe 2 by inlet valve 3, and the other end is closed;
In captation, the one end of receiving the corresponding water inlet pipe 2 of water pipe 14 is closed, and the other end receiving water pipe 14 connects rising pipe 17 by flowing water Valve 16.
Water-distributing device is 0.5-1m apart from ground vertical depth, is made up of the water distributor 10 in the wide 20-40cm of series of parallel arrangement, the cloth tank of dark 20-30cm and groove; Distance wherein between cloth tank is 150-200cm, and the gradient is 1:300, slope aspect water outlet direction.
Cloth tank surrounding lays the thick composite geo-membrane of one deck 5mm 11, and inner filling particle diameter is the gravel 9 of 5-20cm; Water distributor 10 adopts the pvc pipe of DN100, and one end connects water inlet pipe 2, and the other end is closed, and is wrapped in gravel 9; The even tube wall of water distributor 10 is laid with water hole, and every 10-20cm cloth water hole, water hole diameter is 1-3cm.
Captation is 2.5-3m apart from ground vertical depth, is made up of the wide 30-50cm of series of parallel arrangement, the water leg of dark 30-40cm and a receipts water pipe 14; Wherein receive on the midperpendicular of water pipe 14 between middle two cloth tanks, gradient 1:200, slope aspect water outlet direction; Water leg and receive that water pipe 14 is vertical lays, the distance between water leg is 150-200cm.Captation is arranged on soil 13.
Receive the pvc pipe that water pipe 14 adopts DN150, the other end of corresponding water inlet pipe 2 connects rising pipe 17, and the other end that receipts water pipe 14 connects rising pipe 17 is closed; Receive water pipe 14 evenly cloth hole, every 10-20cm cloth water hole, water hole diameter is 1-3cm; The solid particle diameter of water leg is the gravel 15 of 5-30cm, throws in the slow-release pesticide of some amount in gravel 15.
Rising pipe 17 connects water collecting basin 18, nitrate concentration detector 19, heating unit and sewage submersible sewage pump 20 is had in pond, sewage submersible pump 20 connects return line 21, return line 21 is connected in the hollow sphere calcium carbonate granule of supplementary unit, and return line 21 offers water hole every 10-20cm in supplementary unit, water hole diameter is 1-3cm.
Directly over receipts water pipe 14,0.5m, distance ground vertical depth 0.5-1m place's build one cut-pff wall 22, dark 2m, prevent the current overflow in the horizontal direction of water distributor.
Treatment unit water inlet of the present invention is that be generally the sewage in septic tank, septic tank is three common compartment septic tanks 1 through simple pretreated sanitary sewage.
In the surface soil 5 burying water-distributing device and captation underground, plant that soil removability is strong, the calamus with landscape effect, cattail, reed, Canna generalis Bailey, iris and power flower again, to improve the landscape effect of device, strengthen the effect of denitrogenation dephosphorizing simultaneously.
Due to the Northwest's soil, the soil is porous, flour sand content is high, good penetrability (saturation permeability coefficient K
s>1.5 × 10
-6m/s), ensure that the downward infiltration of sewage in position in soil; In cloth tank, the gravel of 5-20cm and the water distributor in even cloth hole ensure that the water distribution uniformity of sewage; In water leg, the grain size of gravel of 5-30cm is greater than original position soil particle diameter, and perviousness is better, in conjunction with the receipts water pipe in even cloth hole, ensure that the receipts water efficiency of device.
Reusing sewage rate after apparatus of the present invention process is greatly about about 60-70%, do not have the sewage of the about 30%-40% of reuse to continue to flow downward, after the deep layer purification of soil and aeration zone, reach earth's surface IV class water quality standard, recharge underground water, recharge of groundwater resource.
The present invention makes full use of microorganism that is of a great variety in the physico-chemical property (as larger specific surface area and certain porosity etc.) of soil uniqueness and soil, enormous amount, mainly through the degraded and absorbed effect of Soil Microorganism, coordinate soil to physical actions such as the filtration of sewage, deposition and absorption, and the chemical action such as redox, ion-exchange and complex-precipitation, reach and have efficiency denitrification and dephosphorization, efficient removal ammonia nitrogen, the object of abundant decomposition organics removal, also has efficient ecological removal effect to pathogenic micro-organism simultaneously.
Make of the present invention is unique, and wastewater purifying efficiency is excellent, only need excavate cloth tank, water distributor, water leg and receipts water pipe sections in actual applications, make construction cost reduce about 50%, further reduce soil filtration plant construction expense.
The process that device of the present invention uses in reality is:
Sanitary sewage, after three compartment septic tanks 1 process, enters into water distributor 10 by water inlet pipe 2 and inlet valve 3.
Water distributor 10 is arranged in cloth tank.Cloth tank is made up of water distributor 10, the gravel 9 wrapping up the 5-20cm of water distributor 10 and composite geo-membrane 11; Water distributor 10 offers posticum equably, and the gradient is 1:300, slope aspect water outlet direction; After water inlet, sewage is evenly distributed in cloth tank, and because composite geo-membrane 11 waterproof, permeability coefficient are little, sewage upwards overflows cloth tank, under self gravitation and soil wicking action, flows downward in BC soil 12.Drainage flow is to after about the 2.5m of earth's surface, and due to principle of hydrodynamics (should flowing along the path that resistance is minimum in the direction of current), the sewage of about 60-70% enters into the gravel 15 of the 5-30cm that water leg is filled; About 30-40% sewage continues to flow downward, and after the deep layer purification of soil and aeration zone, reaches earth's surface IV class water quality standard, recharges underground water.
The sewage entering into water leg enters into receipts water pipe 14 through receiving the hole on water pipe 14 tube wall, the gradient receiving water pipe 14 is 1:200, slope aspect water outlet direction, thus sewage is after treatment under gravity along receiving water pipe 14 through flowing water Valve 16, is discharged by rising pipe 17.
Rising pipe 17 connects water collecting basin 18, nitrate concentration detector 19 is had in water collecting basin 18, when nitrate concentration overrate in water outlet, heating unit 20 opened by water collecting basin, after water outlet is heated to 40-50 DEG C, sewage submersible sewage pump is opened and water outlet is pumped into return line 21 is delivered in supplementary unit, in supplementary unit, water outlet is through return line space pouring compound calcium carbonate particle 7, compound calcium carbonate particle 7 be size not etc. hollow compound calcium carbonate particle and outer wall thickness is uneven, in the warm water environment of 40-50 DEG C, compound calcium carbonate outer wall dissolves gradually, the particle that outer wall is thin first breaks, break after the particle of outer wall thickness, calcium carbonate granule is in order to the basicity in setting device, discharge methyl alcohol wherein simultaneously, for denitrification process provides carbon source, the steady running of ensuring equipment.Compound calcium carbonate particle can holdout device steady running 1 year.
In surface soil 5, plant the plant 4 that soil removability is strong, have landscape effect, mainly comprise calamus, cattail, reed, Canna generalis Bailey, iris and power flower again, to improve the landscape effect of device, strengthen the effect of denitrogenation dephosphorizing simultaneously.
Water inlet of the present invention is the Northwest's domestic sewage in rural areas mainly, and influent quality is (unit: mg/L): 200≤COD≤400; 150≤BOD
5≤ 300; 30≤NH
4 +-N≤50; 3≤TP≤6; 150≤SS≤300.
Effluent quality (mg/L): COD≤60; BOD
5≤ 20; NH
4 +-N≤15; TP≤0.5; SS≤20.
Effluent quality meets integrated wastewater discharge standard completely, or meets local landscape environment waste water discharge standard (as " requirement of aquatic products landscape environment discharge of wastewater " DB33453-2006), thus water outlet completely can reuse as water for scenic environment use.
Claims (6)
1. multimedium subsurface infiltration is back to a treatment unit for water for scenic environment use, forms by being embedded in the supplementary unit of underground, water-distributing device and captation; Wherein:
The structure of supplementary unit is: be filled with compound calcium carbonate particle between upper and lower two-layer wire netting, compound calcium carbonate particle is the hollow sphere calcium carbonate granule adopting normal temperature thermosol to become with calcium carbonate powders mixing manufacture, then seals after injection of methanol solution wherein; Compound calcium carbonate particle outer wall thickness is 2-30mm, and wherein the mass ratio of calcium carbonate and methyl alcohol is 15:8; Lay non-woven geotextile between compound calcium carbonate particle and lower floor's wire netting;
The structure of water-distributing device is: multiple cloth tank arranged in parallel, periphery in each cloth tank lays composite geo-membrane, and being filled with particle diameter in composite geo-membrane is 5-20cm gravel, is enclosed with a water distributor in gravel, one end of water distributor connects water inlet pipe, and the other end is closed; The tube wall of water distributor offers water hole every 10-20cm, and water hole diameter is 1-3cm;
Supplementary unit and water-distributing device are for arranging in the same way and being connected up and down;
Captation is arranged on the below of water-distributing device, is 4m with the difference of altitude of water-distributing device, is the soil of original position between the two;
The structure of captation is: multiple water leg arranged in parallel, those water legs and cloth tank be Vertical dimension arrange, being filled with particle diameter in water leg is 5-30cm gravel, in gravel throw in have slow-release pesticide; One to receive water pipe and cloth tank be parallel laid, and on midperpendicular between two the cloth tanks in centre; The one end of receiving water pipe corresponding water distributor connection water inlet pipe is closed, and the other end receiving water pipe connects rising pipe; The tube wall of receipts water pipe offers water hole every 10-20cm, and water hole diameter is 1-3cm;
Cloth tank and receipts water pipe have a gradient, the direction of slope aspect rising pipe, and the gradient of cloth tank is 1:300, and the gradient receiving water pipe is 1:200;
Rising pipe connects water collecting basin, have nitrate concentration detector, heating unit and sewage submersible sewage pump in water collecting basin, sewage submersible sewage pump connects a return line, and return line is embedded in the compound calcium carbonate particle of supplementary unit, offer water hole every 10-20cm, water hole diameter is 1-3cm.
2. treatment unit according to claim 1, wherein, water distributor adopts the pvc pipe of DN100, receives the pvc pipe that water pipe adopts DN150.
3. treatment unit according to claim 1 and 2, wherein, receives above water pipe and builds one cut-pff wall, to prevent the water outlet overflow in the horizontal direction of water distributor.
4. treatment unit according to claim 1, wherein, ground topsoil kind is implanted with that soil removability is strong, the calamus with landscape effect, cattail, reed, Canna generalis Bailey, iris and power flower again.
5. treatment unit according to claim 1, wherein, the water inlet of water inlet pipe is through simple pretreated sanitary sewage.
6. treatment unit according to claim 5, wherein, sanitary sewage is the sewage in three common compartment septic tanks.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103880186B (en) * | 2014-03-21 | 2015-11-18 | 中国环境科学研究院 | A kind of Wicresoft excavation multimedium subsurface infiltration is back to the treatment unit of irrigation water |
| CN106336084B (en) * | 2016-10-31 | 2019-03-12 | 河南科技学院 | A kind of multimedium underground diafiltration is back to the processing unit of water for scenic environment use |
| CN110720443A (en) * | 2019-11-13 | 2020-01-24 | 北京国强博源科技发展有限公司 | Insect collecting device of insect killing lamp |
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| CN1405096A (en) * | 2002-09-23 | 2003-03-26 | 清华大学 | Intensified water-layout underground infiltration water treatment method and system |
| WO2006069035A2 (en) * | 2004-12-21 | 2006-06-29 | Novozymes Biologicals, Inc. | Wastewater treatment compositions |
| CN101638289A (en) * | 2009-08-27 | 2010-02-03 | 同济大学 | Strengthened land domestic sewage treatment system with built-in filter cloth trench |
| CN101693585A (en) * | 2009-10-21 | 2010-04-14 | 中国环境科学研究院 | Septic tank-artificial wetland rural sewage courtyard type landscape treating device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103864228B (en) * | 2014-03-21 | 2015-04-08 | 中国环境科学研究院 | Minimally invasive excavated multimedium underground percolating in-situ recharge underground water treatment device |
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2014
- 2014-03-21 CN CN201410108096.3A patent/CN103848544B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1405096A (en) * | 2002-09-23 | 2003-03-26 | 清华大学 | Intensified water-layout underground infiltration water treatment method and system |
| WO2006069035A2 (en) * | 2004-12-21 | 2006-06-29 | Novozymes Biologicals, Inc. | Wastewater treatment compositions |
| CN101638289A (en) * | 2009-08-27 | 2010-02-03 | 同济大学 | Strengthened land domestic sewage treatment system with built-in filter cloth trench |
| CN101693585A (en) * | 2009-10-21 | 2010-04-14 | 中国环境科学研究院 | Septic tank-artificial wetland rural sewage courtyard type landscape treating device |
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Inventor after: Zhang Lieyu Inventor after: Xi Beidou Inventor after: Li Guowen Inventor after: Li Mingxiao Inventor after: Li Caole Inventor after: Wang Jianxin Inventor after: Wang Lei Inventor after: Xuan Youfu Inventor before: Zhang Lieyu Inventor before: Xi Beidou Inventor before: Li Guowen Inventor before: Li Mingxiao Inventor before: Li Caole Inventor before: Wang Jianxin |
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