CN108341437A - A kind of biology gaseous-waste holdup system - Google Patents
A kind of biology gaseous-waste holdup system Download PDFInfo
- Publication number
- CN108341437A CN108341437A CN201810070308.1A CN201810070308A CN108341437A CN 108341437 A CN108341437 A CN 108341437A CN 201810070308 A CN201810070308 A CN 201810070308A CN 108341437 A CN108341437 A CN 108341437A
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- Prior art keywords
- biological
- ceramic particle
- gaseous
- waste holdup
- layer
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a kind of biological gaseous-waste holdup systems, the biology gaseous-waste holdup system is followed successively by from top to bottom plants soil layer, the first permeable geotextile layer, packing layer, the second permeable geotextile layer and drainage blanket, surrounding and bottom are equipped with geotextiles, and described filler layer contains following component：Filler matrix, hydrophilic biological ceramic particle, the biological ceramic particle includes hollow biological ceramic particle shell, the porous hydrophilic material being filled in the biological ceramic particle shell, the biological ceramic particle shell is equipped at least part of opening that can expose the porous hydrophilic material, and the porous hydrophilic material is prepared by polyvinyl alcohol polymerization foaming.The present invention provides a kind of biological gaseous-waste holdup systems, biological ceramic particle is formed by biological ceramic particle shell and the porous hydrophilic material being filled in biological ceramic particle shell, effectively improve the nitrogen of packing layer and the removal ability of phosphorus, the filtration characteristic of packing layer is improved simultaneously, it effectively prevent packing layer to block, rainwater to improve biological gaseous-waste holdup system is percolated ability, and biological gaseous-waste holdup system is made to be less likely to occur to block.
Description
Technical field
The present invention relates to sponge urban rainwater processing technology fields, more particularly, to a kind of biological gaseous-waste holdup system.
Background technology
It is a kind of emerging low influence exploitation runoff rainwater control facility in situ that biology, which is detained facility, has good runoff dirty
Contaminate control effect, runoff volume cuts down achievement and peak flow control effect and economic and practical, can be widely applied to urban afforestation.
But due to randomness and complexity that Runoff, water change, existing biology is detained facility to pollutant in runoff rainwater
Removal rate fluctuation range is larger, not satisfactory to nitrogen, the removal effect of phosphorus in runoff, and filler soil is easy to happen blocking, diafiltration
Effect declines, and constrains the usage time of the facility, just needs soil removal and replacement using the very short time.There is an urgent need for reinforce the performance to filler
Research, design percolation effect is good, be less likely to occur block biology be detained facility.
Invention content
The present invention is the defect overcome described in the above-mentioned prior art, provides a kind of biological gaseous-waste holdup system.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of biology gaseous-waste holdup system, is followed successively by plants soil layer, the first permeable geotextile layer, packing layer, second thoroughly from top to bottom
Water geotextile layer and drainage blanket, surrounding and bottom are equipped with geotextiles, and described filler layer is made of filler matrix and biological ceramic particle, institute
State biological ceramic particle shell and the porous hydrophilic material being filled in the biological ceramic particle shell, the biology that biological ceramic particle includes hollow
Haydite shell is equipped with opening, states porous hydrophilic material and is prepared by polyvinyl alcohol polymerization foaming.
The porous hydrophilic material obtained by polyvinyl alcohol polymerization foaming has good water penetration, and filtration characteristic is excellent, energy
Significantly improve the filtration characteristic of packing layer.Porous structure can also improve the oxygen content of packing layer, be conducive to the adherency of microorganism
And growth, strengthen the denitrogenation dephosphorizing ability of packing layer by the effect of microorganism, can effectively reduce rainwater COD, porous structure is also
Be conducive to rainwater circulation, can effectively prevent the blocking of biological gaseous-waste holdup system.
Rainwater by plant soil layer plant and soil tentatively filter, absorb after after, packing layer is penetrated into, in packing layer
Further filtering, absorption, into drainage blanket.When bottom is permeable geotextiles, water can penetrate permeable soil after entering drainage blanket
Work cloth is discharged.
Preferably, the biological ceramic particle shell is equipped with >=2 openings.Opening on biological ceramic particle shell is conducive to increase porous
Water wetted material adsorbs duct to the infiltration of rainwater, is also conducive to the circulation of absorption rainwater, can further promote biological gaseous-waste holdup system
It is percolated smoothness.
Preferably, the filling rate of porous hydrophilic material is 30%~50% in the haydite.
Preferably, the volume of the biological ceramic particle is 0.3~0.7cm3, the thickness of the biological ceramic particle shell is 1.0~
2.0mm, the biological ceramic particle quality are the 1.0%~1.2% of the filler matrix quality.
In order to ensure that the materials such as biological ceramic particle and soil can be sufficiently mixed uniformly, the volume of biological ceramic particle is 0.3~
0.7cm3.Biological ceramic particle shell needs enough voltage endurance capabilities, will not rupture, so thickness is unsuitable excessively thin.In order to ensure filling foot
The thickness of enough porous hydrophilic materials, biological ceramic particle shell is also unsuitable blocked up.So that biological gaseous-waste holdup system obtains suitable diafiltration speed
Degree, if biological ceramic particle dosage is too low, effective drainage porosity is low, and anti-clogging ability and infiltration rate are inadequate.Dosage is excessively high, then has
It is excessive to imitate porosity, rain penetration excessive velocities may be made and the pollutant in rainwater is caused to have little time by packing layer absorption point
Solution.
Preferably, the filler matrix is mixed by cattail matrix soil with fine sand.
In this field, cattail matrix soil is generally cattail clast and is mixed with soil, and cattail is generally cut into length
3cm, the fine strip shape of wide 1cm or so, with soil by weight 3:2 are uniformly mixed, and the porosity of the soil is generally 35% ±
5%.When cattail matrix soil is mixed with fine sand as filler matrix, the weight ratio of cattail matrix soil and fine sand is generally 2:1,
Those skilled in the art can reasonably be adjusted on this basis.Cattail matrix soil uses in biological gaseous-waste holdup system
When, the ability with consolidation system denitrogenation dephosphorizing.
Preferably, described filler layer also contains iron powder, and the iron powder quality is the 2%~4% of the filler matrix quality.
Iron powder can promote the removal of phosphorus in rainwater, by mixing addition iron powder in packing layer so that biological gaseous-waste holdup system is grown
The ability of phase dephosphorization, to further increase the dephosphorization ability of biological gaseous-waste holdup system.
Preferably, the thickness of described filler layer is 700~900mm.
Preferably, the biological gaseous-waste holdup system further includes overflow pipe, the upper end of the overflow pipe be higher by plant soil layer 10~
The lower end of 100cm, the overflow pipe are connected to city planting ductwork.When meeting with heavy rain, biological gaseous-waste holdup system has little time the rainwater of processing,
City planting ductwork is then flowed by overflow pipe, avoids the plant of biological gaseous-waste holdup system by water submerged.
Preferably, the plant soil layer includes coating and soil horizon.The coating for planting soil layer is generally bark, leaf, covers
It is soil horizon under cap rock.Planting in biological gaseous-waste holdup system is in soil horizon, can be native when rainwater enters biological gaseous-waste holdup system
Earth and plant tentatively filter, absorb after be further processed into packing layer.
Preferably, the plant the thickness of the layer is 100~200mm.
Preferably, the drainage blanket is gravel layer, and grain size of gravel is 0.5~3.0cm.Gravel layer can be such that packing layer filters
Rainwater afterwards is quickly drained.
Preferably, the thickness of the drainage blanket is 200~300mm.
Preferably, the geotextiles are permeable geotextiles.It is laid with geotextiles, energy in the surrounding of biological gaseous-waste holdup system and bottom
It is permeable geotextiles enough to prevent original soil invasion around, the geotextiles, is conducive to rain penetration.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention provides a kind of biological gaseous-waste holdup systems, by biological ceramic particle shell and are filled in porous in biological ceramic particle shell
Water wetted material forms biological ceramic particle, effectively improves the nitrogen of packing layer and the removal ability of phosphorus, while improving packing layer
Filtration characteristic effectively prevent packing layer to block, and the rainwater to improve biological gaseous-waste holdup system is percolated ability, makes biological gaseous-waste holdup system
It is less likely to occur to block.
Description of the drawings
Fig. 1 is the schematic diagram of the biological gaseous-waste holdup system of the present invention.
Specific implementation mode
The present invention is further illustrated With reference to embodiment.
The present invention is so filler matrix and the biological ceramic particle preparation of embodiment are as follows：
1, filler matrix
Filler matrix is mixed by cattail matrix soil with fine sand, and cattail matrix soil may be used commonly used in the art
Method be prepared.Cattail matrix soil in the present embodiment is using following preparation method：Cattail is cut into long 3cm, wide 1cm
The fine strip shape of left and right, with soil by weight 3:2 are uniformly mixed, and the porosity of the soil is 35% ± 5%.Fine sand is using commercially available
Common fine sand.The weight ratio of cattail matrix soil and fine sand is 2:1, cattail matrix soil and fine sand mixing form filler base
Matter.
2, the preparation method of biological ceramic particle：
(1) prepared by biological ceramic particle shell：
S1. powder is mixed to get using municipal dewatered sludge, ferric trichloride, flyash and clay, ferric trichloride is that municipal administration is dry
The 1.0% of sludge weight, flyash are the 120% of municipal dewatered sludge weight, and clay is the 50% of municipal dewatered sludge weight, powder
Grain size be less than or equal to 0.09mm；Use polyphenyl foam particle for template, polyphenyl foam is sphere, the grain size of template is 2~
8mm；The moisture content of municipal dewatered sludge is 7.0%~9.0%；
S2. the cmc soln that one layer of mass concentration is 1.2% is soaked in template；
S3. then the template of S2. is put into powder, is allowed to surface and speckles with the powder that a layer thickness is 0.3~0.5mm；
S4. the template of S3. is then put into pan-pelletizer, and powder is added, needed to squirt powder therebetween, matter may be used
A concentration of 1.2% cmc soln is measured to squirt powder, be prepared in the wet haydite shell containing template, thickness is
Then 0.5~2.5mm cuts out two openings；
S5. by the dry 6min that sets that there are two the wet haydite shells being open at 100 DEG C of S4.；Then at 1000~1100 DEG C
20~25min of lower drying, cooling obtain biological ceramic particle shell.
(2) prepared by biological ceramic particle：
Modified polyvinylalcohol is added to the water, is heated to 70 DEG C, insulated and stirred 1h, fento cellulose is added and continues to stir
0.5h is cooled to 60 DEG C, and plasticized starch, alkylbenzene sulfonate, methylcellulose and calcium carbonate is added, and stirring 1h is suspended
The suspension is poured into rapidly in the biological ceramic particle shell prepared in multiple (1), places after ten minutes, will send out at room temperature by liquid
Bubble case, which is placed in baking oven, to be cured；It cannot shake before this in foam box, especially foam uphill process；Foam is placed in 100
DEG C baking oven in cure 0.5h, obtained polyvinyl alcohol foam biological ceramic particle.Part polyethylene alcohol foam be might have from opening
Place's protrusion will be cut from opening protrusion except to get to polyvinyl alcohol foam biological ceramic particle.
Embodiment 1
A kind of biology gaseous-waste holdup system, plants soil layer 1, the first permeable geotextile layer 2, fills out as shown in Figure 1, being followed successively by from top to bottom
The bed of material 3, the second permeable geotextile layer 4 and drainage blanket 5, surrounding and bottom are equipped with geotextiles 6, and packing layer 3 is by filler matrix and life
Object haydite forms, and biological ceramic particle includes hollow biological ceramic particle shell and the porous hydrophilic material being filled in the biological ceramic particle shell
Material.The thickness of packing layer 3 is 800mm in the present embodiment, and packing layer is uniformly mixed using filler matrix and biological ceramic particle and is formed, raw
Object haydite is polyvinyl alcohol foam biological ceramic particle, is set on biological ceramic particle shell there are two being open, polyvinyl alcohol foam fills out in haydite
It is 30% to fill rate, and biological ceramic particle quality is the 1.0% of filler matrix quality.Drainage blanket 5 is gravel layer, and the thickness of gravel layer is
250mm, the grain size of gravel are 2.0cm, and it includes coating and soil horizon to plant soil layer 1, and coating is bark, leaf, under coating
It is soil horizon, for planting in soil horizon, plant the thickness of the layer is 200mm.
Embodiment 2~6
A kind of biology gaseous-waste holdup system, substantially the same manner as Example 1, design parameter is shown in Table 1.
Embodiment 8
Difference lies in the iron powders in filler matrix also containing matrix gross mass 3% with embodiment 7 for the present embodiment.Comparison
Example 1
Difference lies in packing layer contains only filler matrix to the present embodiment, does not add biological ceramic particle with embodiment 1.
Comparative example 2
Difference lies in packing layer contains filler matrix and biological ceramic particle to the present embodiment, and biological ceramic particle is hollow with embodiment 1
It is not filled with.
Comparative example 3
Difference lies in packing layer contains filler matrix and polyvinyl alcohol foam, porous hydrophilic to the present embodiment with embodiment 1
Material character is same as Example 1, outer layer inanimate object haydite shell.
As a result it detects
1. detection method
(1) removal efficiency of nitrogen and phosphorus detects
The drainage blanket rainwater for taking surface rain, biological gaseous-waste holdup system respectively, measures the content of ammonia nitrogen, total nitrogen, total phosphorus, then
Calculate ammonia nitrogen removal frank, nitrogen removal rate, total tp removal rate.Wherein ammonia nitrogen NH4 +N content uses Berthelot spectrophotometry
HJ 535-2009 detections, total nitrogen TN contents use the anti-light splitting of molybdenum antimony using potassium persulfate oxidation GB11894-89 detections, total phosphorus TP
Photometry GB 11893-89 detections.
(2) long-term filtration characteristic monitoring
Test method is：Before test, first adds water, the water surface to be unlikely to cover overflow port into biological gaseous-waste holdup system, work as biology
When the infiltration rate of gaseous-waste holdup system is stablized, biological gaseous-waste holdup system is in saturation state at this time；A part of water is then taken out, biology is made
The supratectal water depth of gaseous-waste holdup system is 5cm, then starts timing, and the supratectal water for recording biological gaseous-waste holdup system disappears
The time of mistake；Time is shorter, and infiltration rate is faster.
It is changed with time by monitoring infiltration rate, compares the anti-clogging ability of the different biological gaseous-waste holdup system of filler.
In order to reduce influence of the moisture evaporation to test result, in test, the top of biological gaseous-waste holdup system is covered using film.
2. testing result
The testing result of the nitrogen phosphorus ligands of Examples 1 to 7 and comparative example 1~3 is as shown in table 2 below.
| Serial number | Ammonia nitrogen removal frank/% | Nitrogen removal rate/% | Total tp removal rate/% |
| Embodiment 1 | 93.61 | 40.40 | 58.13 |
| Embodiment 2 | 95.58 | 43.35 | 60.10 |
| Embodiment 3 | 91.64 | 38.43 | 57.15 |
| Embodiment 4 | 90.65 | 37.44 | 56.16 |
| Embodiment 5 | 96.56 | 44.34 | 60.10 |
| Embodiment 6 | 94.59 | 42.37 | 59.12 |
| Embodiment 7 | 97.55 | 47.29 | 62.08 |
| Embodiment 8 | 96.56 | 45.32 | 69.96 |
| Comparative example 1 | 34.48 | 17.73 | 29.56 |
| Comparative example 2 | 55.18 | 24.63 | 36.45 |
| Comparative example 3 | 63.06 | 27.59 | 47.29 |
The biological gaseous-waste holdup system that can be seen that the present invention from the experimental result of table 2 has good nitrogen phosphorus ligands effect, nitrogen
Tp removal rate is apparently higher than comparative example, illustrates that the biological ceramic particle of the present invention effectively improves biology and is detained ammonia in processing rainwater
The ability of nitrogen, total nitrogen, total phosphorus.
The long-term filtration characteristic testing result of embodiment and comparative example is as shown in table 3.
Table 3
| Test serial number | Test period | Embodiment 1 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| 1 | Initially | 0.59h | 1.18h | 0.43h | 0.83h |
| 2 | Every 1 week | 0.59h | 1.18h | 0.45h | 0.93h |
| 3 | Every 1 week | 0.69h | 1.38h | 0.51h | 1.02h |
| 4 | Every 1 week | 0.69h | 2.18h | 0.53h | 1.11h |
| 5 | Every January | 0.89h | 3.45h | 0.57h | 1.63h |
| 6 | Every January | 0.99h | 4.31h | 0.60h | 2.01h |
| 7 | Every January | 1.09h | 5.03h | 0.89h | 2.98h |
| 8 | Every January | 1.09h | 5.71h | 1.91h | 3.45h |
| 9 | Every January | 1.19h | 6.03h | 2.98h | 4.02h |
| 10 | Every March | 1.29h | 6.9h | 3.02h | 4.51h |
| 11 | Every March | 1.49h | 7.37h | 4.15h | 5.34h |
Subsequent long-term experiment the result shows that, the biological gaseous-waste holdup system of embodiment effectively improves the diafiltration of packing layer
Can, it effectively prevent packing layer to block, improves biological gaseous-waste holdup system rain penetration ability, biological gaseous-waste holdup system is made to be not easy to block up
Plug.And as can be seen that can keep good filtration characteristic in 1 year from the time, and comparative example is after 3 months, diafiltration
Performance is decreased obviously, it is seen that hydrophilic porous material can significantly improve the water permeability of biological ceramic particle.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate examples made by the present invention, and is not to this
The restriction of the embodiment of invention.It for those of ordinary skill in the art, on the basis of the above description can be with
It makes other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all in this hair
All any modification, equivalent and improvement etc., should be included in the claims in the present invention made by within bright spirit and principle
Within protection domain.
Claims (9)
1. a kind of biology gaseous-waste holdup system, which is characterized in that be followed successively by plant soil layer from top to bottom（1）, the first permeable geotextile layer
（2）, packing layer（3）, the second permeable geotextile layer（4）And drainage blanket（5）, surrounding and bottom are equipped with geotextiles（6）, the filler
Layer（3）Including filler matrix and biological ceramic particle, the biological ceramic particle includes hollow biological ceramic particle shell and is filled in the biology
Porous hydrophilic material in haydite shell, the biological ceramic particle shell are equipped with opening, and the porous hydrophilic material is polymerize by polyvinyl alcohol
Foaming is prepared.
2. biological gaseous-waste holdup system according to claim 1, which is characterized in that the biological ceramic particle shell is equipped with >=2 openings.
3. biological gaseous-waste holdup system according to claim 1, which is characterized in that the filling rate of porous hydrophilic material in the haydite
It is 30% ~ 50%.
4. biological gaseous-waste holdup system according to claim 3, which is characterized in that the volume of the biological ceramic particle is 0.3 ~ 0.7cm3,
The thickness of the biological ceramic particle shell be 1.0 ~ 2.0mm, the biological ceramic particle quality be the filler matrix quality 1.0% ~
1.2%。
5. biological gaseous-waste holdup system according to claim 1, which is characterized in that the filler matrix is by cattail matrix soil and carefully
Sand mixes.
6. biological gaseous-waste holdup system according to claim 5, which is characterized in that also contain iron powder in the filler matrix, it is described
Iron powder quality is the 2% ~ 4% of the filler matrix quality.
7. according to any one of claim 1 to the 6 biological gaseous-waste holdup system, which is characterized in that further include overflow pipe（7）, described
Overflow pipe（7）Upper end（71）It is higher by and plants 10 ~ 100cm of soil layer, the overflow pipe（7）Lower end（72）It is connected to city planting ductwork.
8. biological gaseous-waste holdup system according to claim 1, which is characterized in that the plant soil layer（1）Including coating and soil
Layer.
9. biological gaseous-waste holdup system according to claim 1, which is characterized in that the drainage blanket（5）For gravel layer, grain size of gravel
For 1 ~ 3cm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810070308.1A CN108341437A (en) | 2018-01-24 | 2018-01-24 | A kind of biology gaseous-waste holdup system |
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| CN109024845A (en) * | 2018-08-17 | 2018-12-18 | 西南交通大学 | A kind of sponge urban road biology stranded belt |
| CN113371782A (en) * | 2021-06-19 | 2021-09-10 | 昆明理工大学 | Material for filtering leaching solution in phosphogypsum slag yard |
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| CN113371782A (en) * | 2021-06-19 | 2021-09-10 | 昆明理工大学 | Material for filtering leaching solution in phosphogypsum slag yard |
| CN113371782B (en) * | 2021-06-19 | 2022-05-31 | 昆明理工大学 | Material for filtering leaching solution in phosphogypsum slag yard |
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Application publication date: 20180731 |
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