CN103224293A - Artificial subsurface flow wetland and rapid maturity effectiveness method thereof - Google Patents
Artificial subsurface flow wetland and rapid maturity effectiveness method thereof Download PDFInfo
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- CN103224293A CN103224293A CN2013100695044A CN201310069504A CN103224293A CN 103224293 A CN103224293 A CN 103224293A CN 2013100695044 A CN2013100695044 A CN 2013100695044A CN 201310069504 A CN201310069504 A CN 201310069504A CN 103224293 A CN103224293 A CN 103224293A
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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
The invention provides an artificial subsurface flow wetland and a rapid maturity effectiveness method thereof, and belongs to the technical field of sewage processing. The artificial subsurface flow wetland is obtained through a step of laying a wetland bed middle and lower layer filler under a condition that the particle size, the graduation, the thickness and the material of the filler satisfy routine design requirements, a step of laying a layer of rough straw paper on the filler, and a step of laying a surface soil layer comprising sandy loam, coal dust, stone chips and the like, having a thickness of 3-5cm and having good water and air permeation abilities on the rough straw paper. The rapid maturity effectiveness method comprises a step of sprout selection, 2, wetland bed surface layer soil selection and laying, a step of sprout plantation, a step of water level adjustment, a step of high-temperature season plantation management, and a step of overwintering period management. Compared with the rural production and domestic sewage treatment of present routine artificial subsurface flow wetlands, the rapid maturity effectiveness method of the artificial subsurface flow wetland has the advantages of rapid growth and distribution of the plant root to the depth of the bed body, fast decontamination effect performance, good surface layer soil permeability, less fine sandy soil infiltration amount, large hydraulic load and the like.
Description
(1) technical field
The present invention relates to a kind of sewage disposal technology, specifically a kind of artificial current wetland and fast-ripenin onset method.
(2) background technology
The artificial swamp purification techniques begins widespread use in the whole nation in recent years, and current wetland is the artificial swamp type of present more employing, mainly is applicable to the second-stage treatment of samll cities and towns, country life sewage and breeding wastewater.The ecosystem that artificial current wetland is made up of matrix, water body, plant, animal and microorganism, waste water passes through filler by water distribution pipe with horizontal permeation or vertical permeation form, sewage is in wetland bed surperficial current downflow, the bed surface plantation waterplant that handling property is good, surviving rate is high, utilize physics, chemistry, the biological triple synergies of matrix, plant, microorganism that sewage is purified, the water body after the purification is collected discharging through the pipeline that catchments.Filling surface and root system of plant form microbial film because of a large amount of microbial growths, when waste water is flowed through microbial film, a large amount of organic and inorganic particulate matter and suspended solids are stopped by filler and root system of plant to be held back, and organic pollutant then is removed by biomembranous absorption, assimilation and dissimilation.Simultaneously, because of root system of plant discharges the transmission of oxygen, make to occur aerobic, anoxic, anaerobic state in the environment around it successively in the wet land system, inorganic nitrogen and organonitrogen are removed by nitrated, denitrification.Phosphorus and metal ion are removed by microbial assimilation, matrix absorption, plant absorbing and sludge settling.Last wet land system changes filler or the harvesting serike is finally removed pollutent.The artificial current wetland initial stage operation scheme of tradition: the one, initial operating stage is seeped in lower floor's filler under the tiny sandy soil of veneer of soil are easy because personnel activity and sewage soak into, and easily produces alluvial, choking phenomenon, influences the flow velocity of water; The 2nd, general thick 20 centimetres of topsoil, ventilation property is relatively poor, influences the reoxygenation of water; The 3rd, wetland begins bath promptly by the design water level operation, and bundle speed is slow under the root system of plant, and wet land system generally needed for 2 years from starting to long ripening.
(3) summary of the invention
Technical assignment of the present invention is at the deficiencies in the prior art, provides a kind of one step of traditional artificial current wetland startup operation method is become the cultivation of thin layer table soil, the short root of the regulation of level fast-ripenin onset method of bundle down.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of artificial current wetland, comprise that thickness is the laying of 60-80 centimetre wetland bed filler, be lower floor's filler in wetland bed particle diameter, grating, thickness, material routinely design requirements lay finish after, lay one deck toilet paper in the above, on toilet paper, lay 3-5 centimetre topsoil again.
Described wetland bed middle lower floor filler comprises gravel, pebbles, rubble and rough sand.
Described topsoil comprises the good silty loam of water-permeable and air permeable, ickings and aggregate chips.
The fast-ripenin onset method of above-mentioned artificial current wetland, this method is carried out according to the following steps:
1) selection of seedling: select well developed root system, durability against pollution is strong, clean effect is good hygrophyte, with the anosis axillary seedling of stalwartness, rhizome or stem tuber as propagulum;
2) selection of wetland bed veneer of soil and laying: outside the skim-coat soil, during other are wetland bed the particle diameter of lower floor fillers, grating, thickness, material routinely design requirements lay finish after, lay one deck toilet paper in the above, the silty loam that 3-5 centimetre of water-permeable and air permeable of laying is good on toilet paper, ickings, aggregate chips etc. are as topsoil again;
3) seedling plantation: plant wetland plant May to the October in wetland plant vegetative period, before the seedling plantation, lays pedal on wetland bed, spills line by seeding row spacing with lime and mark the plantation point, forbids directly to trample artificial swamp; Plantation is during seedling, according to the characteristic of plant together with original soil together imbed wetland bed in;
4) regulation of level: at the current wetland planting seedlings initial stage, the concentration of rushing in sewage should ascendingly increase gradually; For the first time filling into, wastewater level exceeds the wetland bed surface, make topsoil drenched, water level is dropped to about 2-4cm under the bed surface, move 1-2 after individual month by design discharge, water level is reduced under the wetland bed surface 15-25cm place operation 1 month, again water level is reduced to, develop to bed body depths with the root system of promotion plant apart from wetland bed end 15-25cm place operation 1 month, subsequently with regulation of level under the bed surface about 10cm, beginning is operation normally.
This method also comprises high temperature season plantation management: high temperature season plantation seedling, the solarization facility of should setting up defences, or regulation of level 4-6cm to the bed surface, moisturizing during high temperature by day, keep surface water to flow, make that water temperature is unlikely to be risen so high, treat that waterplant survives, just slow down the moisturizing measure after sprouting young leaves.
This method also comprises the management of the phase of surviving the winter: the seedbed takes straw or plastic film to cover to be incubated in the winter wetland, and complete liquidation is clean again when waiting for the coming year spring plant rudiment.
In order to improve the surviving rate of seedling, in the step 1), described seedling balled transplanting with the suitable pocket soil of packing, and is noted preserving moisture, and waits for sowing.
A kind of artificial current wetland of the present invention and fast-ripenin onset method compared with prior art, the beneficial effect that is produced is:
1) artificial current wetland of the present invention has simple in structurely, plants the shoot survival percent height, plant community characteristics such as be evenly distributed;
2) because topsoil is thin, ventilation property is better, is beneficial to the reoxygenation of sewage;
3) the toilet paper layer is established in the Pu under the topsoil, can prevent to ooze under the tiny particle of current wetland construction and initial operating stage veneer of soil, treat that the toilet paper layer rots, plant upper strata root system adheres to the tiny sandy soil of upper strata filler, form stable topsoil, reduced the generation of alluvial, obturator;
4) regulation of level, high-water operation in preceding 1-2 month is beneficial to the injured root system reparation of plant and sprouts new root system, water level progressively being reduced operation grows to bed of packings body depths rapidly with the root system that promotes plant again, subsequently with regulation of level 10cm place under the bed surface, the normal operation of beginning is convenient to set up as early as possible root system decontamination fauna on every side.
(4) description of drawings
Accompanying drawing 1 is the cross-sectional view of artificial current wetland of the present invention.
Among the figure, 1, wetland bed in the lower floor filler, 2, veneer of soil, 3, toilet paper.
(5) embodiment
Explain to a kind of artificial current wetland of the present invention and below the fast-ripenin onset method work below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of artificial current wetland of the present invention, its structure is outside the skim-coat soil 2, during other is wetland bed the particle diameter of lower floor filler 1, grating, thickness, material routinely design requirements lay finish after, lay one deck toilet paper 3 in the above, the silty loam that 3-5 centimetre of water-permeable and air permeable of laying is good on toilet paper 3, ickings, aggregate chips etc. are as topsoil 2 again, and described wetland bed middle lower floor filler 1 comprises gravel, pebbles, rubble and rough sand, and the wetland bed gradient of formation is 1-2%.
The fast-ripenin onset method of above-mentioned artificial current wetland, this method is carried out according to the following steps:
1) selection of seedling: selection well developed root system, the hygrophyte that durability against pollution is strong, clean effect is good, preferably the native country hygrophyte of suitable local environment., best with the anosis axillary seedling of stalwartness, rhizome or stem tuber with the seedling that degree of lignification is high as propagulum, all seedling balled transplantings, with the suitable pocket soil of packing, the protection root system is complete, and notes preserving moisture, and waits for sowing.
2) selection of wetland bed veneer of soil and laying: outside the skim-coat soil 2, during other are wetland bed the particle diameter of lower floor fillers 1, grating, thickness, material routinely design requirements lay finish after, lay one deck toilet paper 3 in the above, prevent to ooze under the tiny veneer of soil of wetland initial operating stage.It is good to lay 3-5 centimetre of water-permeable and air permeable again on toilet paper 3
Silty loam, ickings, aggregate chips etc. are as topsoil 2, and sewage with current downflow, prevents that mosquitos and flies from multiplying on the filler top layer, improve the reoxygenation effect of sewage.Lay and wetland bedly will accomplish after the water filling that the degree of depth of water surface submergence root system of plant should be tried one's best evenly in the bed, and make water surface slope and base slope basically identical as far as possible.
3) seedling plantation: constructed wetland plant vegetative period generally April to November, plant wetland plant May to October, can impel constructed wetland plant germinating growth as early as possible, the also corresponding growth time that increases plant.Before the seedling plantation, on wetland bed, lay pedal,, spill line by seeding row spacing with lime and mark the plantation point, forbid directly to trample artificial swamp with the hierarchical structure of tamper-proof filler.Plantation is during seedling, according to the characteristic of plant together with original soil together imbed wetland bed in.According to plantation season and plant characteristic, waterplant can appropriate dense planting, so that root system of plant is covered with filler as early as possible, and performance sewage disposal effect.
4) water level management: at the current wetland planting seedlings initial stage, the concentration of rushing in sewage should ascendingly increase gradually, prevents to burn seedling.For the first time fill into that wastewater level exceeds the wetland bed surface, treat that topsoil is drenched after, water level is dropped to about 2-4cm under the bed surface, by design discharge operation 1-2 month, make the seedling growth that is restored, and anchor in the bed of packings.Then, water level is reduced under the wetland bed surface 15-25cm place operation 1 month, again water level is reduced to, develop to bed body depths with the root system of promotion plant apart from wetland bed end 15-25cm place operation 1-2 month, with regulation of level 5-10cm place under the bed surface, beginning is operation normally subsequently.
5) high temperature season plantation management: high temperature season current wetland top layer sandy soil are accepted quick heating after the sun lights, after the seedling plantation rhizome portion are burnt, and cause death.The solarization facility of should setting up defences, or regulation of level 5cm to the bed surface, moisturizing during high temperature by day keeps surface water to flow, and makes that water temperature is unlikely to be risen so high, and treats that waterplant survives, and slows down the moisturizing measure again after sprouting young leaves.
6) the survive the winter management of phase: enter winter, plant later wetland seedbed and should adopt straw or plastic film to cover to be incubated, to guarantee the seedling safe overwintering, again that the coverture complete liquidation is clean when waiting for the coming year spring plant rudiment.
By the operation of above method, the wet land system soil removability is rapid-action, only needs 1 year to 1 year half from starting to mature and stable operation.
Claims (7)
1. artificial current wetland, comprise the laying of wetland bed filler, it is characterized in that, in wetland bed the particle diameter of lower floor's filler, grating, thickness, material routinely design requirements lay finish after, lay one deck toilet paper in the above, on toilet paper, lay 3-5 centimetre topsoil again.
2. a kind of artificial current wetland according to claim 1 is characterized in that, described wetland bed middle lower floor filler comprises gravel, pebbles, rubble and rough sand.
3. a kind of artificial current wetland according to claim 1 is characterized in that described topsoil comprises the good silty loam of water-permeable and air permeable, ickings and aggregate chips.
4. the fast-ripenin onset method of an artificial according to claim 1 current wetland is characterized in that this method is carried out according to the following steps:
1) selection of seedling: select well developed root system, durability against pollution is strong, clean effect is good hygrophyte, with the anosis axillary seedling of stalwartness, rhizome or stem tuber as propagulum;
2) selection of wetland bed veneer of soil and laying: outside the skim-coat soil, during other are wetland bed the particle diameter of lower floor fillers, grating, thickness, material routinely design requirements lay finish after, lay one deck toilet paper in the above, the silty loam that 3-5 centimetre of water-permeable and air permeable of laying is good on toilet paper, ickings, aggregate chips are as topsoil again;
3) seedling plantation: plant wetland plant May to the October in wetland plant vegetative period, before the seedling plantation, lays pedal on wetland bed, spills line by seeding row spacing with lime and mark the plantation point, forbids directly to trample artificial swamp; Plantation is during seedling, according to the characteristic of plant together with original soil together imbed wetland bed in;
4) regulation of level: at the current wetland planting seedlings initial stage, the concentration of rushing in sewage should ascendingly increase gradually; For the first time filling into, wastewater level exceeds the wetland bed surface, make topsoil drenched, water level is dropped to about 2-4cm under the bed surface, move 1-2 after individual month by design discharge, water level is reduced under the wetland bed surface 15-25cm place operation 1 month, again water level is reduced to, develop to bed body depths with the root system of promotion plant apart from wetland bed end 15-25cm place operation 1 month, subsequently with regulation of level under the bed surface about 10cm, beginning is operation normally.
5. the fast-ripenin onset method of artificial current wetland according to claim 4, it is characterized in that, this method also comprises high temperature season plantation management: high temperature season plantation seedling, the solarization facility of should setting up defences, or regulation of level 4-6cm to the bed surface, moisturizing during high temperature by day, keep surface water to flow, make that water temperature is unlikely to be risen so high, treat that waterplant survives, just slow down the moisturizing measure after sprouting young leaves.
6. the fast-ripenin onset method of artificial current wetland according to claim 4, it is characterized in that, this method also comprises the management of the phase of surviving the winter: the seedbed takes straw or plastic film to cover to be incubated in the winter wetland, and complete liquidation is clean again when waiting for the coming year spring plant rudiment.
7. the fast-ripenin onset method of artificial current wetland according to claim 4 is characterized in that, in the step 1), described seedling balled transplanting with the suitable pocket soil of packing, and is noted preserving moisture, and waits for sowing.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107265654A (en) * | 2017-08-08 | 2017-10-20 | 南京大学 | A kind of construction method of organic contamination artificial swamp aquatic vegetation |
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| CN1814881A (en) * | 2006-03-02 | 2006-08-09 | 陈绍华 | Degradeable regenerative cellulose fiber earthwork cloth and its working technique |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107265654A (en) * | 2017-08-08 | 2017-10-20 | 南京大学 | A kind of construction method of organic contamination artificial swamp aquatic vegetation |
| CN107265654B (en) * | 2017-08-08 | 2021-02-09 | 南京大学 | Construction method of organic pollution constructed wetland aquatic plant community |
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Application publication date: 20130731 |