CN103880153B - A kind of high water-base fluid landscape ground filtration system for rural sewage treatment and treatment process - Google Patents
A kind of high water-base fluid landscape ground filtration system for rural sewage treatment and treatment process Download PDFInfo
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- CN103880153B CN103880153B CN201410146559.5A CN201410146559A CN103880153B CN 103880153 B CN103880153 B CN 103880153B CN 201410146559 A CN201410146559 A CN 201410146559A CN 103880153 B CN103880153 B CN 103880153B
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Abstract
The present invention discloses a kind of high water-base fluid landscape ground filtration system for rural sewage treatment, and water distributor is evenly distributed on crop both sides, along the some equidistant drip hole of pipe range directional spreding on it; Water shoot is distributed in the middle of two row crops, along the water vent of the sewage after the some collection and treatments of pipe range directional spreding on it, and the permeable geomembrane of water shoot outer cladding; Water distributor is parallel with water shoot; Waste water after process is pooled in pump well by the header perpendicular to water shoot direction.The present invention also discloses the treatment process of country sewage.The present invention does not carry out drip irrigation with drip irrigation emitter but directly punches on dropper, and such sewage is directly from drip hole instillation soil, and the phenomenon that effectively prevent emitter clogging occurs; Introduce underdrainage system, effectively improve the sewage treatment capacity of system and the water outlet after being beneficial to collection and purification; Take full advantage of the abundant landscape ground of china natural resources as sewage disposal carrier, do not transform soil, construction is simple, and convenient management, sustainability is better.
Description
Technical field
The present invention relates to ecological wastewater processing technical field, be specifically related to a kind of high water-base fluid landscape ground filtration system for rural sewage treatment and treatment process.
Background technology
Along with the fast development of rural areas in our country economy, environmental problem is more and more serious.Current, country sewage is to Rural areas living environment with resident is healthy causes great harm, and national water environment safety in serious threat.The Rural areas density of population is low, sparsely populated, builds sewage work and not only spends comparatively large, and can waste a large amount of cleaning water in the process of conveying dirt.Therefore, at a low price, efficient, eco-friendly ecological wastewater processing technology more and more obtains the attention of investigator.
Land treatment system controls sewage and is administered on soil, is purified by physics, chemistry and biological process when effluent stream is through soil.Compared with traditional sewage work, this technology has the advantages such as power consumption is low, operation and management expense is few, is applicable to process small rural community, housing group and little commercial unit waste water.Slow land treatment system particularly in the middle of land treatment system, utilizes soil-natural ecosystems, is that in land treatment technique, economic benefit is maximum, and water and nutritive ingredient utilize a best type.
Traditional soil slow rate treatment system running cost is low, is easy to safeguard, but hydraulic load is less, and processing power is limited.Australian Scientists proposes a kind of waste water soil treatment system of improvement, i.e. FILTER (filtrationandirrigatedcroppingforlandtreatmentandeffluen treuse) waste water soil treatment system.This system is mainly irrigated with sewage, and intensive underdrainage system has been installed in inside, and building of outlet system also has higher professional technical.This system can keep higher sewage to receive and processing power all the year round, but cost is more expensive, and maintenance cost is high and supporting pumping equipment requires high.
At present, some investigators of China also improve traditional land treatment system, to increasing the hydraulic load of system, enhanced sewage treatment effect.Name is called that the patent of " a kind of high water-base fluid land percolation system " (application number is 201320220941.7) adds the integral parts such as cloth tank, hand-stuff layer, supporting layer, rising pipe in systems in which; The Patent design pond of a brick pool wall of concrete floor that denomination of invention is " a kind of land percolation system of applicable process domestic sewage in rural areas " (application number is 201220364493.3), is made up of topsoil, lower soil, sealing coat, supporting layer and impervious barrier in pond.These researchs serve certain effect to the hydraulic load improving land percolation system, but they have all carried out artificial reforming to Soil structure, are unfavorable for the Sustainable development of land ecosystem.
Summary of the invention
The object of this invention is to provide a kind of high water-base fluid landscape ground filtration system for rural sewage treatment, high to solve existing land percolation system investments cost, destroy the defects such as soil structures.The invention also discloses the treatment process of filtration system process country sewage.
For addressing the aforementioned drawbacks, the present invention by the following technical solutions:
For a high water-base fluid landscape ground filtration system for rural sewage treatment, comprise landscape ground, water distributor, water shoot, header, pump well; Water distributor is evenly distributed on crop both sides, along the some equidistant drip hole of pipe range directional spreding on water distributor; Water shoot is distributed in the middle of two row crops, along the water vent of the sewage after pipe range directional spreding some collection landscape grounds soil treatment on water shoot, and the permeable geomembrane of water shoot outer cladding; Water distributor is parallel with water shoot, and the thickness of soil between water distribution tube layer and draining tube layer is 0.2m ~ 0.8m; Water shoot one end is communicated on header, and header is vertical with water shoot; Header one end is closed, and one end is water outlet, is communicated to pump well, and header falls 0.5% ~ 5% along pump well direction ratio, and water outlet arranges valve and lift pump.
The permeable geomembrane of described water distributor outer cladding.
Described landscape ground comprises mulberry field, orchard or nursery stock woods, and described orchard comprises apple orchard, citrus orchard, theatre, vineyard or peach garden.
Described water distributor is plastics tubing, and bore is 8 ~ 16mm; Drip hole utilizes laser or mechanical punching, pitch-row 0.1 ~ 1.0m, aperture 0.5 ~ 2.0mm.
Described water shoot and header are plastic film capicitor, bore 40 ~ 120mm.
Described water distributor is apart from crop 0.3 ~ 0.8m, buried depth 0 ~ 0.4m; Described water shoot buried depth 0.2 ~ 1.2m, adjacent drainage channel tube spacing 2 ~ 10m.
Described pump well capacity is 0.5 ~ 10m
3.
One deck filtrate is provided with, the thickness 1.5 ~ 20mm of filtrate between described water shoot and the permeable geomembrane of outer cladding; Filtrate is diatomite, molecular sieve, filter sand.
The above-mentioned high water-base fluid landscape ground filtration system for rural sewage treatment is utilized to carry out the method for rural sewage treatment, the drip hole of pretreated country sewage on water distributor is comprised the steps: to flow into landscape ground soil, through 1 ~ 2d balance period, by sewage purification under the acting in conjunction of plant, soil, microorganism, draw water with lift pump afterwards, the water body after purification is made to slowly flow across soil, water shoot and header, enter in pump well, draw water after terminating, pass pump and valve make water level reach balance.
The present invention is to provide a kind of reduced investment, engineering structure is simple, maintenance management is convenient, treatment effect is good, do not destroy the high water-base fluid landscape ground filtration system of the applicable Rural areas decentralized type sewage process of soil structures, has the following advantages:
(1) do not carry out drip irrigation with drip irrigation emitter but directly punch on dropper, such sewage is directly from drip hole instillation soil, and the phenomenon that effectively prevent emitter clogging occurs; (2) introduce underdrainage system, effectively improve the sewage treatment capacity of system and the water outlet after being beneficial to collection and purification; (3) in the period that crop vital activity is lower and rainfall is larger, this system still can process a certain amount of waste water, thus decreases the expense of rainy season and winter storage waste water; (4) take full advantage of the abundant landscape ground of china natural resources as sewage disposal carrier, do not transform soil, construction is simple, convenient management, and sustainability is better; (5) be provided with the better effects if of one deck filtrate between water shoot and the permeable geomembrane of outer cladding, can not be blocked.(6) waste water is discharged by treatment method for rural sewage of the present invention after the acting in conjunction purification of plant, soil, microorganism, and reach the effect of purification, the ammonia nitrogen simultaneously in waste water and organic substance facilitate the growth of ornamental plant.
Accompanying drawing explanation
Fig. 1 is two dimensional structure schematic diagram of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 1.
1 be water distributor, 2 be water shoot, 3 be permeable geomembrane, 4 be header, 5 be valve, 6 be pump well, 7 for drip hole.
Embodiment
Below in conjunction with drawings and Examples the present invention done and further explain.
China's landscape ground resource is extremely abundant, and 2013 China statistical annual reports show China field and forest land area account for 26.07% of soil total amount.According to investigations, at lower hydraulic loading rate (500mmyr
-1) condition under, the sanitary sewage that landscape ground soil can receive rural area to produce completely, and ornamental plant water demand amount is comparatively large, water tolerance is comparatively strong, therefore utilizes landscape ground system to have larger application potential to process sanitary sewage.
For a high water-base fluid landscape ground filtration system for rural sewage treatment, as shown in Figure 1 to Figure 3, landscape ground, water distributor 1, water shoot 2, header 4, pump well 6 is comprised.Landscape ground comprises mulberry field, orchard or nursery stock woods etc., and orchard comprises apple orchard, citrus orchard, theatre, vineyard or peach garden etc.Water distributor 1 is plastics tubing, and bore is 8 ~ 16mm, is evenly distributed on crop both sides, apart from crop 0.3 ~ 0.8m, buried depth 0 ~ 0.4m.Along the some drip hole 7 equidistantly utilizing laser or machinery to beat of pipe range directional spreding on water distributor 1, pitch-row 0.1 ~ 1.0m, aperture 0.5 ~ 2.0mm, on water distributor, drip hole is immediately below pipe, the permeable geomembrane of water distributor 1 outer cladding (strengthen water sport and hinder soil movement).Water shoot 2 is plastic film capicitor, bore 40 ~ 120mm, is distributed in the middle of two row crops, adjacent drainage channel pipe 2 spacing 2 ~ 10m, water shoot 2 buried depth 0.2 ~ 1.2m.Along the water vent of the sewage after pipe range directional spreding some collection landscape grounds soil treatment on water shoot 2, the permeable geomembrane 3 (strengthen water sport and hinder soil movement) of water shoot 2 outer cladding.Be provided with one deck filtrate, better effects if between water shoot and the permeable geomembrane of outer cladding, can not be blocked.Thickness 1.5 ~ the 20mm of filtrate; Filtrate is diatomite, molecular sieve, filter sand.Water distributor 1 is parallel with water shoot 2, and the thickness of soil between water distribution tube layer and draining tube layer is 0.2m ~ 0.8m.Water shoot 2 one end is communicated on header 4, and header 4 is vertical with water shoot 2.Header 4 is plastic film capicitor, bore 40 ~ 120mm, and one end is closed, and one end is water outlet, is communicated to pump well 6, and header 4 falls 0.5% ~ 5% along pump well 6 direction ratio, and water outlet arranges valve 5 and lift pump.Pump well 6 capacity is 0.5 ~ 10m
3.
The method that landscape ground filtration system of the present invention is disposed of sewage: flow into landscape ground soil through the drip hole 7 of pretreated country sewage on water distributor 1, through 1 ~ 2d balance period, by sewage purification under the acting in conjunction of plant, soil, microorganism, draw water with lift pump afterwards, the water body after purification is made to slowly flow across soil, water shoot 2 and header 4, enter in pump well 6, draw water after terminating, pass pump and valve 5 make water level reach balance.
Embodiment 1
The test of high water-base fluid landscape ground filtration system process country sewage has been carried out in grape field, Hou Hong village, Yixing City Wan Shi town, Jiangsu Province.Water distributor employing internal diameter is the black polyethylene plastics tubing of 12mm, and aperture 0.8mm, pitch-row 50cm, be distributed in earth's surface, grapevine both sides, apart from crop 0.625m.Underdrainage tube spacing 2.5m, buried depth 0.6m, underground drain and header adopt HDPE corrugated drain pipe, bore 100mm.Header ratio falls 1%.By testing water distributor hydraulic performance, when pressure is 0.01MPa, the average discharge of drip hole is 1.65Lh
-1, drip irrigation uniformity coefficient is 85.4%.
System operation time be in September, 2011 to November, altogether receive sewage 6 times (total hydraulic loading rate is 162.0mm), each run balance period is 1d.Water inlet suspended particulate (SS), total nitrogen (TN), ammonia nitrogen (NH
4 +-N), total phosphorus (TP) and chemical oxygen demand (COD) (COD) mean concns be respectively 72.98mgL
-1, 429.73mgL
-1, 375.46mgL
-1, 46.32mgL
-1, 439mgL
-1.System is to SS, TN, NH
4 +the average removal rate of-N, TP and COD is respectively: 86.1%, 78.2%, 78.0%, 94.6%, 76.8%.Test-results illustrates, high water-base fluid landscape ground filtration system has good removal effect to country sewage.This system investments is economized, engineering structure is simple, maintenance management is convenient, is the sewage disposal technology being relatively applicable to being applied in Rural areas.
Last it is noted that above-described embodiment does not limit the present invention in any form, the technical scheme that the mode that all employings are equal to replacement or equivalent transformation obtains, is all among protection scope of the present invention.
Claims (4)
1., for a high water-base fluid landscape ground filtration system for rural sewage treatment, it is characterized in that, comprise landscape ground, water distributor, water shoot, header and pump well; Described landscape ground comprises mulberry field or orchard, and described orchard comprises apple orchard, citrus orchard, theatre, vineyard or peach garden; Described water distributor is plastics tubing, and bore is 8 ~ 16mm; Along the some equidistant drip hole of pipe range directional spreding on water distributor, drip hole utilizes laser or mechanical punching, pitch-row 0.1 ~ 1.0m, aperture 0.5 ~ 2.0mm; The permeable geomembrane of water distributor outer cladding; Water distributor is evenly distributed on crop both sides, apart from crop 0.3 ~ 0.8m, buried depth 0 ~ 0.4m; Described water shoot and header are plastic film capicitor, bore 40 ~ 120mm; Along the water vent of the sewage after pipe range directional spreding some collection landscape grounds soil treatment on water shoot, the permeable geomembrane of water shoot outer cladding; Water shoot is distributed in the middle of two row crops, buried depth 0.2 ~ 1.2m, adjacent drainage channel tube spacing 2 ~ 10m; Water distributor is parallel with water shoot, and the thickness of soil between water distribution tube layer and draining tube layer is 0.2m ~ 0.8m; Water shoot one end is communicated on header, and header is vertical with water shoot; Header one end is closed, and one end is water outlet, is communicated to pump well, and header falls 0.5% ~ 5% along pump well direction ratio, and water outlet arranges valve and lift pump.
2. the high water-base fluid landscape ground filtration system for rural sewage treatment according to claim 1, it is characterized in that, described pump well capacity is 0.5 ~ 10m
3.
3. the high water-base fluid landscape ground filtration system for rural sewage treatment according to claim 1, is characterized in that, be provided with one deck filtrate between described water shoot and the permeable geomembrane of outer cladding, the thickness 1.5 ~ 20mm of filtrate; Filtrate is diatomite, molecular sieve or filter sand.
4. utilize the high water-base fluid landscape ground filtration system for rural sewage treatment described in claim 1 to carry out the method for rural sewage treatment, it is characterized in that, the drip hole of pretreated country sewage on water distributor is comprised the steps: to flow into landscape ground soil, through 1 ~ 2d balance period, by sewage purification under the acting in conjunction of plant, soil, microorganism, draw water with lift pump afterwards, the water body after purification is made to slowly flow across soil, water shoot and header, enter in pump well, draw water after terminating, pass pump and valve make water level reach balance.
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| CN105060496B (en) * | 2015-07-16 | 2017-09-29 | 山东大学 | Anti-clogging drip irrigation water-distributing soil rapid infiltration system and its operation method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102219335A (en) * | 2011-03-17 | 2011-10-19 | 上海昌保环境科技有限公司 | Earthworm soil diafiltration for ecologically processing domestic sewage with earthworm soil diafiltration |
| CN202577273U (en) * | 2012-03-13 | 2012-12-05 | 中国二十冶集团有限公司 | Well point pipe network device of silt backfill soil layer |
| WO2013191313A1 (en) * | 2012-06-19 | 2013-12-27 | Byeon Chanwoo | Ecologically sustainable multi-cell and multi-lane structured biotope system utilizing wetland, pond, and settling reservoir structures |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203340578U (en) * | 2013-05-22 | 2013-12-18 | 厦门鹭路兴绿化工程建设有限公司 | Automatic irrigation management system of urban road green belt |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102219335A (en) * | 2011-03-17 | 2011-10-19 | 上海昌保环境科技有限公司 | Earthworm soil diafiltration for ecologically processing domestic sewage with earthworm soil diafiltration |
| CN202577273U (en) * | 2012-03-13 | 2012-12-05 | 中国二十冶集团有限公司 | Well point pipe network device of silt backfill soil layer |
| WO2013191313A1 (en) * | 2012-06-19 | 2013-12-27 | Byeon Chanwoo | Ecologically sustainable multi-cell and multi-lane structured biotope system utilizing wetland, pond, and settling reservoir structures |
Non-Patent Citations (1)
| Title |
|---|
| 园林地慢速渗滤系统处理农村分散式生活污水;段增强等;《农业工程学报》;20121231;第28卷(第23期);第193页第1.2-1.4节，图1-2，第194页第2.2-2.3节 * |
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