CN103880186B - A kind of Wicresoft excavation multimedium subsurface infiltration is back to the treatment unit of irrigation water - Google Patents
A kind of Wicresoft excavation multimedium subsurface infiltration is back to the treatment unit of irrigation water Download PDFInfo
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- CN103880186B CN103880186B CN201410108294.XA CN201410108294A CN103880186B CN 103880186 B CN103880186 B CN 103880186B CN 201410108294 A CN201410108294 A CN 201410108294A CN 103880186 B CN103880186 B CN 103880186B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
Wicresoft's excavation multimedium subsurface infiltration is back to the treatment unit of irrigation water: supplementary unit is connected the top being positioned at captation with water-distributing device, difference of altitude is 2m; The structure of supplementary unit is two-layer wire netting central filler compound calcium carbonate particle; Water-distributing device is multiple cloth tanks arranged in parallel, and the periphery in each cloth tank lays composite geo-membrane, is filled with gravel, is enclosed with a water distributor, the tube wall of water distributor offers water hole in gravel in composite geo-membrane; Cloth tank has a gradient; Captation is multiple water legs arranged in parallel, is filled with gravel in water leg; One receipts water pipe and cloth tank are parallel laid, and the tube wall of receipts water pipe offers water hole; Receive water pipe and there is a gradient; 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; Rising pipe connects water collecting basin, and the sewage submersible sewage pump of water collecting basin connects return line, and return line is connected in supplementary unit.
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 irrigation water.
Background technology
Agricultural is the industry that China's use water is maximum, water total amount 4,000 hundred million m
3, account for more than 70% of total water consumption, wherein water quantity for irrigating agricultural field 3,600 hundred million ~ 3,800 hundred million m
3, account for the 90%-95% of Water Consumption in Agriculture.Agricultural irrigation every annual lack of water more than 300 hundred million m
3, area suffered from drought 2146.67 ten thousand hm every year on average
2, account for 1/5, Disaster Area 8,600,000 hm of arable land, the whole nation
2, every year because of drought underproduction grain 10,000,000,000 ~ 15,000,000,000 kg.
Shen Ju inland, NORTHWEST CHINA area, drought, shortage of water resources.By the treatment facility of a set of environmental protection practicality, single household, many families urban residents' sanitary sewage are carried out collection and treatment, is back to farmland irrigation water, both can water saving, the shortage of effective alleviation Water Resource in Northwest, can alleviate damage caused by a drought again, improves grain yield.
Efficiency for Soil Aquifer Treatment is usually used in villages and small towns sewage disposal, can build a small-sized Efficiency for Soil Aquifer Treatment for single household or the sanitary sewage disposal of many families, and this type case engineering is existing a lot, and practical application effect is better.But traditional filtration system quantities is relatively large, and construction cost is high, be thus badly in need of a kind of novel subsurface wastewater infiltration system, 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 irrigation water, to improve the defect existed in known technology.
For achieving the above object, Wicresoft provided by the invention excavation multimedium subsurface infiltration is back to the treatment unit of irrigation water, 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 2m 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 irrigation water;
Fig. 2 is the side schematic view that Wicresoft of the present invention excavation multimedium subsurface infiltration is back to the treatment unit of irrigation water;
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 2m 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 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 9 of 5-20cm and the water distributor 10 in even cloth hole ensure that the water distribution uniformity of sewage; In water leg, gravel 15 particle diameter of 5-30cm is greater than original position soil particle diameter, and perviousness is better, in conjunction with the receipts water pipe 14 in even cloth hole, ensure that the receipts water efficiency of device.
Reusing sewage rate after device process of the present invention 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.In addition, when Pollutant levels are higher in device water outlet, basicity and carbon source is provided by compound calcium carbonate particle, the stability that ensuring equipment is disposed of sewage by return line backflow.
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; 150≤SS≤300.
Effluent quality (unit: mg/L): COD≤150; BOD
5≤ 60; SS≤80; Effluent quality meets " agricultural irrigation water quality standard " (GB5084-2005) requirement completely.
Claims (6)
1. Wicresoft's excavation multimedium subsurface infiltration is back to a treatment unit for irrigation water, 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 2m 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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| CN105198016A (en) * | 2015-10-10 | 2015-12-30 | 中国电建集团贵阳勘测设计研究院有限公司 | Comprehensive utilization device and method for tail water of integrated domestic sewage treatment equipment |
| CN106815794A (en) * | 2017-01-17 | 2017-06-09 | 靳泓 | A kind of comprehensive sponge urban ecological planning managing device |
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|---|---|---|---|---|
| US3925206A (en) * | 1974-09-26 | 1975-12-09 | Stanley J Dea | System for home wastewater treatment and disposal |
| CN101585647A (en) * | 2009-07-09 | 2009-11-25 | 王军 | Capillary tube compound sewage treatment device |
| CN103848544A (en) * | 2014-03-21 | 2014-06-11 | 中国环境科学研究院 | Treatment device in multi-medium underground infiltration reuse technology for landscape environment water |
| CN103864228A (en) * | 2014-03-21 | 2014-06-18 | 中国环境科学研究院 | Minimally invasive excavated multimedium underground percolating in-situ recharge underground water treatment device |
| CN103864227A (en) * | 2014-03-21 | 2014-06-18 | 中国环境科学研究院 | Treatment device for recycling micro-invasive excavation multi-medium subsurface leachate as water for cultivation |
-
2014
- 2014-03-21 CN CN201410108294.XA patent/CN103880186B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3925206A (en) * | 1974-09-26 | 1975-12-09 | Stanley J Dea | System for home wastewater treatment and disposal |
| US3925206B1 (en) * | 1974-09-26 | 1986-05-06 | ||
| CN101585647A (en) * | 2009-07-09 | 2009-11-25 | 王军 | Capillary tube compound sewage treatment device |
| CN103848544A (en) * | 2014-03-21 | 2014-06-11 | 中国环境科学研究院 | Treatment device in multi-medium underground infiltration reuse technology for landscape environment water |
| CN103864228A (en) * | 2014-03-21 | 2014-06-18 | 中国环境科学研究院 | Minimally invasive excavated multimedium underground percolating in-situ recharge underground water treatment device |
| CN103864227A (en) * | 2014-03-21 | 2014-06-18 | 中国环境科学研究院 | Treatment device for recycling micro-invasive excavation multi-medium subsurface leachate as water for cultivation |
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