CN101805097B - Laying method of base material of underground leachate treatment system - Google Patents
Laying method of base material of underground leachate treatment system Download PDFInfo
- Publication number
- CN101805097B CN101805097B CN2010101416919A CN201010141691A CN101805097B CN 101805097 B CN101805097 B CN 101805097B CN 2010101416919 A CN2010101416919 A CN 2010101416919A CN 201010141691 A CN201010141691 A CN 201010141691A CN 101805097 B CN101805097 B CN 101805097B
- Authority
- CN
- China
- Prior art keywords
- layer
- soil
- clay
- deck
- land
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Treatment Of Biological Wastes In General (AREA)
- Processing Of Solid Wastes (AREA)
- Revetment (AREA)
Abstract
The invention relates to a laying method of the base material of a underground leachate treatment system. The method comprises the following steps: digging a filter chamber, and reinforcing the filter chamber with clay; laying a layer of clay on the bottom of the filter chamber, putting a layer of seepage-proof membrane on clay layer; arranging a number of collector pipes on the seepage-proof membrane and surrounding the pipes with a layer of gravels, meanwhile burying a plurality of sighting tubes; placing a layer of backfill in situ on the gravel layer, and a special layer of soil on top of the backfill layer; putting the water-proof containers inside the special soil layer and burying a plurality of water dispersing pipes with holes on the side walls over the water-proof containers; arranging a layer of surface tillage soil on the special soil layer; the earth surface for planting herbs is above the tillage soil layer. Water is dispersed on each layer of base material to soak the layers. Another layer of base material is placed on the above base material after a natural biodegradation of 24 hours or longer. The invention can shorten the start-up period, enhance the hydraulic loading, improves denitrification, dephosphorization as well as the universality of the system. The method of the invention can operate well in the cold weather of northern China in winter.
Description
Technical field:
The present invention relates to the collection on the spot of a kind of decentralized wastewater, on-the-spot disposal and the polluted water land treatment technology of reuse on the spot, specifically is a kind of laying method of subsurface infiltration Sewage treatment systems matrix.
Background technology:
The subsurface infiltration Sewage treatment systems is a kind of typical decentralized type sewage soil treatment technology; It is the basis with the ecological engineering science method; Follow the ecological principle of global optimization, cyclic regeneration and regional differentiation; In conjunction with the sewage natural purification function, can realize the collection on the spot of sewage, on-the-spot disposal and reuse on the spot.Therefore become one of ecological wastewater processing technology that domestic and international scientist actively advocates and study.
More to the focus of subsurface infiltration technical study at present, one of them is exactly choice of base configuration and laying method problem.The backfill soil of traditional subsurface wastewater infiltration system when engineering construction is the original position soil of excavating basically.Because the engineering construction place is different, the soil property of excavating is difficult to satisfy the requirement of filtration system hydromechanics penetrating quality; The matrix of backfill soil composition is single relatively simultaneously, only is simple backfill in the construction process, and the engineering science influence factor of on laying method, considering is less.In addition; Along with pollutant kind in the sewage increases, composition is complicated day by day, and traditional subsurface wastewater infiltration system can not satisfy the WWT demand with reuse up to standard fully aspect the configuration of matrix and the laying; Longer like system's start-up period; Hydraulic load and pollution load are low, and poor denitrification and dephosphorization effect receives cold climates restriction in winter etc.
Summary of the invention:
The object of the present invention is to provide a kind of laying method of subsurface infiltration Sewage treatment systems matrix.This method can shorten start-up period after implementing, and improves hydraulic load, improves system's denitrogenation dephosphorizing effect, improves the universality of system simultaneously, solves operation problem under northern area cold climates in the winter condition.
A kind of laying method of subsurface infiltration Sewage treatment systems matrix is: after the excavation of earthwork of diffusion cell; Tamp pad with clay in the pond around the body; Bottom, diffusion cell seepage control system is made up of clay and anti seepage membrane; Lay one deck clay earlier, re-lay anti seepage membrane after the compacting, a pond body anti seepage membrane is a seamless anti seepage membrane; Above anti seepage membrane, lay the evenly header of punching of several sidewalls; Around header, fill one deck gravel, while pre-buried several length when laying gravel are higher than the sighting tube of the filtration system degree of depth, and one deck original position backfill soil is laid in the gravel top; One deck special soil is laid in original position backfill soil top; In the special soil layer, lay waterproof ware, the water spraying pipe of pre-buried several sidewall punchings directly over the waterproof ware, the special soil top is laid one deck face of land and is ploughed earth; It is the face of land that the earth top is ploughed on the face of land, plants herbage on the face of land.Above-mentioned subsurface wastewater infiltration system matrix except that clay seam is the compacting processing, is spread water infiltration after the intact one deck matrix of other every laying, through re-laying the matrix of last layer after the time natural subsidence more than 24 hours in process of deployment.
Described anti seepage membrane, waterproof ware and water spraying pipe are processed by the high density polyethylene(HDPE) material.
Described original position backfill soil is meant the soil that the engineering construction scene is excavated, and requires PQ between 4.167 * 10
-5Cel to 1.389 * 10
-3Between the cel.
Described special soil is the mixture of high-quality planting soil, cinder, artificial preparation microbiobacterial agent and sewage work's aerobic activated sludge.
The described face of land plough earth be meant dark 20 centimetres with interior arable soil.
Beneficial effect of the present invention:
1, shortening system starts the cycle of operation.General subsurface wastewater infiltration system start-up period is about 30 days, and adopts above-mentioned hypothallus laying method, and start-up period on average shortens one thoughtful ten day, has improved the startup operational efficiency.
2, improve hydraulic load, save floor space, improve removal efficiency of nitrogen and phosphorus.General common report subsurface wastewater infiltration system hydraulic load is 2～8 centimetres/day, and the clearance of total nitrogen and total phosphorus is lower than 65% and 90%.After adopting above-mentioned hypothallus laying method, system's alternation of wetting and drying operation, psychrometric ratio is 1: 1; System's hydraulic load can be increased to 10～15 centimetres/day; Under the certain condition of the amount of disposing of sewage, can reduce floor space, the clearance of total nitrogen and total phosphorus can be promoted to more than 75% and 96% simultaneously.
3, improve the universality of system.General subsurface wastewater infiltration system only can be realized whole year operation in some areas, China south, and identical technology is difficult to be suitable at northern area.Adopt above-mentioned hypothallus laying method, water spraying pipe and header buried depth all can be arranged on and freeze below the layer winter, if manage properly, winter, wastewater treatment efficiency was influenced less, and water outlet still can reach the landscape water standard.
Description of drawings:
Fig. 1 is the longitudinal profile synoptic diagram of subsurface wastewater infiltration system matrix of the present invention.
Label among the figure: 1 is clay, and 2 is anti seepage membrane, and 3 is gravel, and 4 is the original position backfill soil, and 5 is special soil, and 6 is waterproof ware, and 7 is water spraying pipe, and 8 are the cultivated earth in the face of land, and 9 is herbage, and 10 is header, and 11 is sighting tube.
Embodiment:
Below in conjunction with embodiment the present invention is done further explain.
See Fig. 1, a kind of laying method of subsurface infiltration Sewage treatment systems matrix is: 6 square metres of subsurface wastewater infiltration system floor spaces, after the excavation of earthwork of diffusion cell, tamp pad with clay around the body in the pond, and be used to prevent that the sewage side from blending the earthwork and caving in; Bottom, diffusion cell seepage control system is made up of clay 1 and anti seepage membrane 2; The bottom, diffusion cell is laid the clay 1 of one deck 12 mm thick earlier; The seamless anti seepage membrane 2 of 1 mm thick is laid in the compacting back; Above anti seepage membrane 2, lay the evenly header 10 (10 millimeters in aperture, 10 millimeters of pitchs of holes) of punching of 3 sidewalls, be used for the sewage after the collection and treatment; Around header 10, fill 300 millimeters gravels 3 of a bed thickness (5 millimeters＜diameter＜8 millimeters), be used for filtering and holding back down oozing the suspended substance that sewage contains, prevent the obstruction of header wall pore; Pre-buried 2 long sighting tubes of 1.7 meters 11 when laying gravel 3 are used for system ventilation and water reoxygenation simultaneously; The original position backfill soil 4 of one deck 300 mm thick is laid in 3 layers of top of gravel; The special soil 5 of one deck 500 mm thick is laid in original position backfill soil 4 tops; Special soil 5 is made up of meadow burozem, slag, microbiobacterial agent and active sludge mixture, and ratio is 5: 2: 2: 1.In 5 layers of special soils, lay waterproof ware 6, the water spraying pipe 7 (5 millimeters in aperture, 10 millimeters of pitchs of holes) of pre-buried 2 sidewalls punching directly over the waterproof ware 6 is to promote diffusion and the wicking action of sewage in soil; Special soil 5 tops are laid the face of land of one deck 500 mm thick and are ploughed earth 8, and it is the face of land that earth 8 tops are ploughed on the face of land, and plantation herbage 9 is the lawn in this example on the face of land.15 centimetres/day of system's hydraulic loads in the present embodiment, the alternation of wetting and drying operation, psychrometric ratio is 1: 1; Be water distribution 24h; Fall to doing 24h, COD, ammonia nitrogen and total average nitrogen concentration are respectively 151.24 mg/litre, 35.74 mg/litre and 45.42 mg/litre in the water inlet sewage, and research shows that system's startup moves to steady running; System's start-up period is 22 days, saves 7～9 days than prior art.
A kind of laying method of subsurface infiltration Sewage treatment systems matrix is: 4 square metres of subsurface wastewater infiltration system floor spaces, after the excavation of earthwork of diffusion cell, tamp pad with clay around the body in the pond, and be used to prevent that the sewage side from blending the earthwork and caving in; Bottom, diffusion cell seepage control system is made up of clay and anti seepage membrane; The bottom, diffusion cell is laid the clay of one deck 12 mm thick earlier; The seamless anti seepage membrane of 1 mm thick is laid in the compacting back; Above anti seepage membrane, lay the evenly header (10 millimeters in aperture, 10 millimeters of pitchs of holes) of punching of 2 sidewalls, be used for the sewage after the collection and treatment; Around header, fill 200 millimeters gravels of a bed thickness (5 millimeters＜diameter＜8 millimeters), be used for filtering and holding back down oozing the suspended substance that sewage contains, prevent the obstruction of header wall pore; Pre-buried 1 long sighting tube of 1.9 meters when laying gravel is used for system ventilation and water reoxygenation simultaneously; The original position backfill soil of one deck 300 mm thick is laid in the gravel bed top, and the special soil of one deck 700 mm thick is laid in original position backfill soil top, and special soil is made up of meadow burozem, slag, microbiobacterial agent and active sludge mixture, and ratio is 5: 3: 1: 1.In the special soil layer, lay waterproof ware, the water spraying pipe (5 millimeters in aperture, 10 millimeters of pitchs of holes) of pre-buried 2 sidewalls punching directly over the waterproof ware is to promote diffusion and the wicking action of sewage in soil; The special soil top is laid one deck face of land and is ploughed 300 millimeters of earth, and it is the face of land that the earth top is ploughed on the face of land, turf plant on the face of land.3 centimetres/day of the initial hydraulic loads of system in the present embodiment, alternation of wetting and drying operation, psychrometric ratio 1: 1, promptly water distribution 18h falls to doing 18h, stable after, hydraulic load is increased to 6,10 and 15 centimetres/day gradually.Through startup operation in 2 months, system was stable, and water outlet COD, ammonia nitrogen, total nitrogen and total phosphorus all satisfy urban look water water quality standard (GB/T18921-2002), and average removal rate is respectively 83.56%, 85.64%, 80.56% and 98.67%.
A kind of laying method of subsurface infiltration Sewage treatment systems matrix is: 4 square metres of subsurface wastewater infiltration system floor spaces, after the excavation of earthwork of diffusion cell, tamp pad with clay around the body in the pond, and be used to prevent that the sewage side from blending the earthwork and caving in; Bottom, diffusion cell seepage control system is made up of clay and anti seepage membrane; The bottom, diffusion cell is laid the clay of one deck 12 mm thick earlier; The seamless anti seepage membrane of 1 mm thick is laid in the compacting back; Above anti seepage membrane, lay the evenly header (10 millimeters in aperture, 10 millimeters of pitchs of holes) of punching of 2 sidewalls, be used for the sewage after the collection and treatment; Around header, fill 200 millimeters gravels of a bed thickness (5 millimeters＜diameter＜8 millimeters), be used for filtering and holding back down oozing the suspended substance that sewage contains, prevent the obstruction of header wall pore; Pre-buried 1 long sighting tube of 1.9 meters when laying gravel is used for system ventilation and water reoxygenation simultaneously; The original position backfill soil of layer 300 mm thick is laid in the gravel bed top, and the special soil of one deck 700 mm thick is laid in original position backfill soil top, and special soil is made up of meadow burozem, slag, microbiobacterial agent and active sludge mixture, and ratio is 5: 2: 1: 2.In the special soil layer, lay waterproof ware, the water spraying pipe (5 millimeters in aperture, 10 millimeters of pitchs of holes) of pre-buried 2 sidewalls punching directly over the waterproof ware is to promote diffusion and the wicking action of sewage in soil; The special soil top is laid one deck face of land and is ploughed 300 millimeters of earth, and it is the face of land that the earth top is ploughed on the face of land, turf plant on the face of land.8 centimetres/day of system's hydraulic loads in the present embodiment, stable back gets into winter, outdoor temperature on average be-15 ℃～8 ℃, in the system water distributor on every side the hypothallus medial temperature be 4～6 ℃.Operation through 2 months; System's stable water outlet; Water outlet COD, ammonia nitrogen, total nitrogen and total phosphorus mean concns are respectively 40.54 mg/litre, 4.51 mg/litre, 7.64 mg/litre and 0.34 mg/litre; Compare when high with temperature, the water outlet Pollutant levels raise slightly, but still can satisfy (GB/T18921-2002) standard of country's " urban sewage reutilization-water for scenic environment use water quality ".
Claims (1)
1. the laying method of a subsurface infiltration Sewage treatment systems matrix; It is characterized in that: after the excavation of earthwork of diffusion cell; Tamp pad with clay in the pond around the body, bottom, diffusion cell seepage control system is made up of clay and anti seepage membrane, lays one deck clay earlier; Re-lay anti seepage membrane after the compacting, a pond body anti seepage membrane is a seamless anti seepage membrane; Above anti seepage membrane, lay the evenly header of punching of several sidewalls; Around header, fill one deck gravel, while pre-buried several length when laying gravel are higher than the sighting tube of the filtration system degree of depth, and one deck original position backfill soil is laid in the gravel top; One deck special soil is laid in original position backfill soil top; In the special soil layer, lay waterproof ware, the water spraying pipe of pre-buried several sidewall punchings directly over the waterproof ware, the special soil top is laid one deck face of land and is ploughed earth; It is the face of land that the earth top is ploughed on the face of land, plants herbage on the face of land; Above-mentioned subsurface wastewater infiltration system matrix except that clay seam is the compacting processing, is spread water infiltration after the intact one deck matrix of other every laying, through re-laying the matrix of last layer after the time natural subsidence more than 24 hours in process of deployment; Described anti seepage membrane, waterproof ware and water spraying pipe are processed by the high density polyethylene(HDPE) material; Described original position backfill soil is meant the soil that the engineering construction scene is excavated, and requires PQ between 4.167 * 10
-5Cel to 1.389 * 10
-3Between the cel; Described special soil is the mixture of high-quality planting soil, cinder, artificial preparation microbiobacterial agent and sewage work's aerobic activated sludge; The described face of land plough earth be meant dark 20 centimetres with interior arable soil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101416919A CN101805097B (en) | 2010-04-08 | 2010-04-08 | Laying method of base material of underground leachate treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101416919A CN101805097B (en) | 2010-04-08 | 2010-04-08 | Laying method of base material of underground leachate treatment system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101805097A CN101805097A (en) | 2010-08-18 |
| CN101805097B true CN101805097B (en) | 2012-02-29 |
Family
ID=42607080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101416919A Expired - Fee Related CN101805097B (en) | 2010-04-08 | 2010-04-08 | Laying method of base material of underground leachate treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101805097B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108207642A (en) * | 2017-12-22 | 2018-06-29 | 中国科学院遗传与发育生物学研究所 | A kind of construction method of ecology scene cycle breeding system |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351319B (en) * | 2011-09-19 | 2013-01-02 | 南京林业大学 | Method for biologically treating sewage through cation exchange, adsorption and filtering by using rice hull carbon |
| CN102910738A (en) * | 2012-10-23 | 2013-02-06 | 沈阳大学 | Soil infiltration bed technical method for treating rural domestic waste water under all-season condition |
| CN103395884B (en) * | 2013-06-28 | 2014-12-03 | 张列宇 | Sewage processing apparatus for depth-type underground soil percolation system |
| CN103435242B (en) * | 2013-08-30 | 2014-09-24 | 哈尔滨北方环保工程有限公司 | Manufacturing method of sludge anaerobic digestion reaction tank, and sludge anaerobic digestion reaction tank obtained by utilizing method |
| CN104710074B (en) * | 2015-02-09 | 2017-07-07 | 沈阳大学 | A kind of step series connection decentralized wastewater land treatment system |
| CN104628144B (en) * | 2015-02-09 | 2016-08-24 | 沈阳大学 | A kind of efficient denitrification polluted water land filtration system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343134B (en) * | 2008-08-26 | 2010-07-14 | 浙江林学院 | Ecological treatment apparatus and method for contamination biogas slurry of livestock and poultry cultivation |
| CN101665308B (en) * | 2009-09-11 | 2012-02-01 | 广州市市政工程设计研究院 | Method for advanced treatment of landfill leachate |
| CN101691270B (en) * | 2009-11-03 | 2012-05-30 | 何航 | Assembled packing artificial vertical subsurface flow wetland unit, application thereof and sewage treatment process |
-
2010
- 2010-04-08 CN CN2010101416919A patent/CN101805097B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108207642A (en) * | 2017-12-22 | 2018-06-29 | 中国科学院遗传与发育生物学研究所 | A kind of construction method of ecology scene cycle breeding system |
| CN108207642B (en) * | 2017-12-22 | 2020-10-09 | 中国科学院遗传与发育生物学研究所 | Construction method of ecological field circulating planting and breeding system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101805097A (en) | 2010-08-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208235696U (en) | Rainwater garden system based on sponge ecosystem water purification | |
| CN101805097B (en) | Laying method of base material of underground leachate treatment system | |
| CN110454165A (en) | One kind repairing matrix and preparation method thereof and burying method for lime stone stone pit abandoned mine pit | |
| CN210421010U (en) | Farmland ecological ditch for reducing leakage, strengthening and purifying | |
| CN1765531A (en) | Water-saving type salina physics-chemistry-biology comprehensive improvement and vegetation construction technique | |
| CN110981097A (en) | Multistage ecosystem that prevents and control agricultural non-point source phosphorus and run off | |
| CN205205608U (en) | Permeable pavement | |
| CN103111451A (en) | Valley-shaped biomass landfill | |
| CN110820679A (en) | River channel ecological revetment and construction method thereof | |
| CN102383408B (en) | Greening method for high water level impermeable saline and alkaline lands and greening system | |
| CN204875850U (en) | Rainwater garden | |
| CN107905208B (en) | Water and soil conservation structure for accelerating rock weathering in stony desertification region and construction method thereof | |
| CN113402120A (en) | Ecological interception system of agricultural non-point source pollution | |
| CN211446781U (en) | River course ecological revetment | |
| CN210559648U (en) | Step multi-section undercurrent artificial wet land treating pool | |
| CN103864228B (en) | Minimally invasive excavated multimedium underground percolating in-situ recharge underground water treatment device | |
| CN107916708A (en) | A kind of rain-flood resources Application way | |
| CN105544340A (en) | Water permeable pavement | |
| CN116145697A (en) | Combined ecological slope protection system capable of absorbing pollutants automatically and application | |
| CN212381636U (en) | Saline soil drainage and salt discharge structure without influencing ground greening planting and landscape | |
| CN211816767U (en) | Immobilized microorganism coupling type grass planting ditch | |
| CN210421033U (en) | Slope farmland runoff pollution retaining system | |
| CN109736331B (en) | Construction method for building landscape mountain by using sludge and agricultural and forestry wastes | |
| CN109396177B (en) | Ecological restoration structure of petroleum hydrocarbon-heavy metal composite pollution sludge, construction method thereof and restoration method thereof | |
| CN111955254A (en) | Forest-water symbiotic construction method for coastal high-heap areas |
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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120229 Termination date: 20120408 |