CN109534623A - The system for improving drowned flow artificial wet land wastewater treatment efficiency is added based on charcoal - Google Patents
The system for improving drowned flow artificial wet land wastewater treatment efficiency is added based on charcoal Download PDFInfo
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- CN109534623A CN109534623A CN201910039883.XA CN201910039883A CN109534623A CN 109534623 A CN109534623 A CN 109534623A CN 201910039883 A CN201910039883 A CN 201910039883A CN 109534623 A CN109534623 A CN 109534623A
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- 239000003610 charcoal Substances 0.000 title claims description 107
- 238000004065 wastewater treatment Methods 0.000 title claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 63
- 238000012856 packing Methods 0.000 claims abstract description 47
- 239000002131 composite material Substances 0.000 claims abstract description 21
- 239000011256 inorganic filler Substances 0.000 claims abstract description 21
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 21
- 239000000945 filler Substances 0.000 claims abstract description 18
- 239000010457 zeolite Substances 0.000 claims abstract description 17
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 12
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical group O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000004568 cement Substances 0.000 claims abstract description 8
- 239000004088 foaming agent Substances 0.000 claims abstract description 8
- 239000002893 slag Substances 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- -1 ceramsite Substances 0.000 claims abstract description 6
- 241000196324 Embryophyta Species 0.000 claims description 50
- 244000005700 microbiome Species 0.000 claims description 18
- 239000000758 substrate Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 14
- 235000019738 Limestone Nutrition 0.000 claims description 5
- 239000006028 limestone Substances 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- 235000005273 Canna coccinea Nutrition 0.000 claims description 4
- 235000014676 Phragmites communis Nutrition 0.000 claims description 4
- 241001070941 Castanea Species 0.000 claims description 3
- 235000014036 Castanea Nutrition 0.000 claims description 3
- 240000007049 Juglans regia Species 0.000 claims description 3
- 235000009496 Juglans regia Nutrition 0.000 claims description 3
- 235000020234 walnut Nutrition 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 239000012634 fragment Substances 0.000 claims description 2
- 238000003306 harvesting Methods 0.000 claims description 2
- 240000008555 Canna flaccida Species 0.000 claims 1
- 239000010865 sewage Substances 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 13
- 238000009826 distribution Methods 0.000 abstract description 5
- 239000011159 matrix material Substances 0.000 abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 9
- 229910052799 carbon Inorganic materials 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 239000002028 Biomass Substances 0.000 description 6
- 238000000746 purification Methods 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 5
- 239000000706 filtrate Substances 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- 239000011574 phosphorus Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 235000013399 edible fruits Nutrition 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 241000234587 Canna Species 0.000 description 3
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- DPJRMOMPQZCRJU-UHFFFAOYSA-M thiamine hydrochloride Chemical compound Cl.[Cl-].CC1=C(CCO)SC=[N+]1CC1=CN=C(C)N=C1N DPJRMOMPQZCRJU-UHFFFAOYSA-M 0.000 description 3
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 238000006396 nitration reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 244000205574 Acorus calamus Species 0.000 description 1
- 235000011996 Calamus deerratus Nutrition 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 241001464837 Viridiplantae Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- JYIBXUUINYLWLR-UHFFFAOYSA-N aluminum;calcium;potassium;silicon;sodium;trihydrate Chemical compound O.O.O.[Na].[Al].[Si].[K].[Ca] JYIBXUUINYLWLR-UHFFFAOYSA-N 0.000 description 1
- 238000004173 biogeochemical cycle Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910001603 clinoptilolite Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 235000015816 nutrient absorption Nutrition 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 125000004151 quinonyl group Chemical group 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000005068 transpiration Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
本发明提供一种基于生物炭添加提高潜流人工湿地污水处理效果的系统，属于污水治理领域，所述系统包括潜流湿地池体、进水管、出水管、布水管和填料层，所述填料层垂直方向由上到下依次为植物基质填料层、生物填料层和无机物填料层，所述植物基质填料层垂直方向由上到下依次为湿地植物、第一生物炭层、植物基质层、砾石层和第二生物炭层，所述生物填料层垂直方向由上到下依次为复合生物填料层和第三生物炭层，所述无机物填料层为沸石、钢渣、陶粒、水泥和发泡剂，所述布水管贯穿于潜流湿地内部，所述填料层顶部与进水管相连通，所述填料层底部与出水管相连通，本发明有效解决了潜流人工湿地易堵塞、氨氮去除效果不好的问题。
The invention provides a system for improving the sewage treatment effect of subsurface constructed wetlands based on the addition of biochar, belonging to the field of sewage treatment. The direction from top to bottom is the plant matrix filler layer, the biological filler layer and the inorganic filler layer. The vertical direction of the plant matrix filler layer is the wetland plants, the first biochar layer, the plant matrix layer, and the gravel layer in order from top to bottom. and the second biochar layer, the biological filler layer is a composite biological filler layer and a third biochar layer from top to bottom in the vertical direction, and the inorganic filler layer is zeolite, steel slag, ceramsite, cement and foaming agent The water distribution pipe runs through the interior of the subsurface wetland, the top of the packing layer is communicated with the water inlet pipe, and the bottom of the filler layer is communicated with the water outlet pipe. question.
Description
Technical field
The present invention relates to sewage treatment fields, improve drowned flow artificial wet land dirt based on charcoal addition more particularly to one kind
The system of water treatment efficiency.
Background technique
The composite system that artificial swamp is made of filler (matrix), plant and microorganism etc., sewage, sludge are controlled
Dosing into the system, sewage and sludge during flowing in a certain direction, mainly using soil, artificial dielectric, plant,
The physics of microorganism, chemistry, the triple synergistic effects of biology, a kind of technology that sewage, sludge are handled.Its by filtering,
Absorption, coprecipitated, ion exchange, plant absorption and microorganism decomposition realize the high-efficient purification to pollutant, while passing through nutrition
The biogeochemical cycle of substance and moisture promotes green plants to grow and make its volume increase, realizes the recycling and nothing of waste water
Evilization.Its mechanism of action mainly include absorption, delay, filtering, redox, precipitating, microorganism decomposition, conversion, plant masking,
Residue accumulated, water transpiration and Nutrient Absorption and the effect of all kinds of animals etc..Artificial swamp presses current direction, can be divided into surface
Wetland, level stream current wetland and vertical current current wetland three classes are flowed, mainly take cobble, the gravel for being laid with different-grain diameter at present
The filtrates such as stone, cinder are constituted, and the water plants such as reed, calamus, canna are planted on wetland, and sewage is by water inlet one end edge
Horizontal direction passes sequentially through sandstone, medium, root system of plant during flowing, and water outlet one end is flowed to, to reach purification purpose.
Although current wetland has very high clean-up effect, there is also following defects: (1) filtrate of current wetland takes different-grain diameter
Stone, gravel etc. constitute, the filtrate for being usually present upper layer small particle in the process of running goes downwards to middle lower layer, causes wetland hole
Rate changes, and causes wetland siltation blocking, reduces wetland service life and purification efficiency；(2) it needs when building wetland to filtrate
Progress gradation sizing lays building and requires height, slightly handles and not will result in filtrate strictly with grade change, reduces wetland purification effect
Fruit.(3) wetland construction needs more manpower and material resources, and construction requirements are larger, and management service cost is larger.(4) purification efficiency is inclined
It is low, it is different to different polluted water purification effects.
Charcoal is to be pyrolyzed a kind of high carbonaceous solids residue obtained after biomass, it has carbon solidification effect, can effectively be subtracted
Few CO2The discharge of gas, charcoal remain the good pore structure of original biomass, have biggish porosity and specific surface
Product, there are also the functional groups such as a large amount of carboxyls, carbonyl, quinonyl for biological carbon surface, have stronger ion-exchange capacity.Charcoal adds
Add the capturing ability that can be significantly improved to the plants needed nutrient matter such as organic matter, nitrogen, phosphorus, enhance absorption of the plant to them,
The growth of wetland plant is remarkably promoted, strengthens the removal ability to pollutant indirectly.
Wetland plant also produces a large amount of biomass while removing pollutant, and rotten stalk of withering reenters
System causes secondary pollution, it is therefore necessary to the withered biomass of cleaning in time.Obtained biomass is cleared up to generally use at burning
Reason, not only waste of resource, also creates atmosphere pollution, is charcoal by biomass pyrolytic and is used in wet land system again,
It can effectively solve problem above.
Summary of the invention
The purpose of the present invention is overcoming deficiency in the prior art, provide a kind of based on charcoal addition raising drowned flow artificial
The system of wetland wastewater treatment efficiency, the charcoal which passes through the wetland plant pyrolysis that will be withered are added to drowned flow artificial
In wetland, solve the problems, such as that current wetland easily blocks, goes dephosphorization nitrogen limited.
To achieve the above object, the present invention provides following schemes:
The present invention provides a kind of system added based on charcoal and improve drowned flow artificial wet land wastewater treatment efficiency, the system
System include current wetland pond body, water inlet pipe, outlet pipe, water distributor and packing layer, described filler layer vertical direction from top to bottom according to
Secondary is plant substrates packing layer, biologic packing material layer and inorganic fillers layer, and the plant substrates packing layer vertical direction is arrived from above
Under be followed successively by wetland plant, the first biological layer of charcoal, plant substrates layer, gravel layer and the second biological layer of charcoal, the biologic packing material layer
Vertical direction is followed successively by composite biological packing layer and third biology layer of charcoal from top to bottom, and the inorganic fillers layer is zeolite, steel
Slag, haydite, cement and foaming agent, the water distributor are connected at the top of described filler layer with water inlet pipe through inside current wetland
Logical, described filler layer bottom is connected with outlet pipe.
Further, the inorganic fillers layer lower part of described filler layer vertical direction is connected with the 4th biological layer of charcoal.
Further, the charcoal is mixed by harvesting constructed wetland plant, walnut shell and chestnut peel waste.
Further, the first biological layer of charcoal described in the plant substrates packing layer with a thickness of 300-400mm, the plant
Object hypothallus is made of zeolite, charcoal, fine sand, lime stone and loam, the plant substrates layer with a thickness of 100-150mm,
The gravel layer with a thickness of 100-200mm, the described second biological layer of charcoal with a thickness of 150-300mm.
Further, in the biologic packing material layer third biology layer of charcoal with a thickness of 100-150mm, the compound bio is filled out
The bed of material with a thickness of 100-150mm.
Further, the described 4th biological layer of charcoal with a thickness of 200-300mm.
Further, the wetland plant is reed, water certain herbaceous plants with big flowers, canna.
Further, the inorganic fillers layer is 20-35 parts of zeolites, 5-8 parts of steel slags, 6-10 parts of haydites, 1-3 parts of cement
With 0.2-1.0 parts of foaming agents.The preparation method of the zeolite is that natural clinoptilolite particle is placed in mortar to grind, and is then sieved
Point, the zeolite little particle that partial size is not more than 0.15mm is obtained, is measured by changing inorganic additive in PVC ball process
The hollow suspension ball of different densities, to adapt to the different amount of zeolite sticked, so that obtaining density is 0.92-0.97mg
cm3New zeolite filler.
Further, the partial size of the charcoal is 8-100mm.
Further, the composite biological packing layer is by the microorganism being loaded on inside hollow float ball and basalt fragment
Filler composition.
The present invention has following technical effect that
The present invention is mixed and made into charcoal using wetland plant, walnut shell and chestnut peel, and charcoal is added to undercurrent people
Work wetland forms composite system, and when composite system is run, the described first biological layer of charcoal has effectively filtered the particulate matter etc. in sewage
The arrangement of impurity, the first biological layer of charcoal and the second biological layer of charcoal enhances the gas permeability of wetland plant rhizosphere, convenient for conveying oxygen
To plant root, the habitat of good growth, breeding is provided for root microorganism, while can also reinforce and maintain medium to water
Transmittability.
Composite biological packing layer of the present invention is coated by biological layer of charcoal up and down, on the one hand, flows through the dirt of the second biological layer of charcoal
Nitrate nitrogen in water is, as carbon source slow release carbon, to provide progress into Organic substance in water and the second biological layer of charcoal for complex microorganism
The carbon source of anti-nitration reaction, then sewage passes through complex microorganism packing layer, and dissolved oxygen content increases, and the ammonia nitrogen in water sufficiently drops
Solution is nitrate nitrogen, and subsequent sewage flows through third biology layer of charcoal, and third biology layer of charcoal further provides carbon source for anti-nitration reaction, dirty
Water, which needs not move through reflux, can be improved the removal effect of nitrogen.
The composite biological packing layer of inorganic filler of the present invention and hollow float ball cladding is effectively raised at fluidised form
Disturbance of the water body in packing area improves coefficient of oxygen utilization, promotes mass transfer of the pollutant into biomembrane system benefit of the present invention
The bubble in sewage water body can be carried out to multiple cutting with itself special structure, improve the mass-transfer efficiency of oxygen, improve gas
Water distribution ability, efficiently solve the problems, such as drowned flow artificial wet land easily block, ammonia nitrogen removal effect it is bad.
Detailed description of the invention
Fig. 1 is charcoal of the present invention addition enhancing drowned flow artificial wet land processing system the schematic diagram of the section structure.
Wherein, 1 is current wetland pond body, and 2 be the 4th biological layer of charcoal, and 3 be inorganic fillers layer, and 4 be third biology layer of charcoal,
5 be composite biological packing layer, and 6 be the second biological layer of charcoal, and 7 be gravel layer, and 8 be biological packing layer, and 9 be the first biological layer of charcoal, 10
It is outlet pipe for plant substrates layer, 11,12 be water inlet pipe.
Specific embodiment
Below in conjunction in the embodiment of the present invention technical solution and attached drawing be clearly and completely described, it is clear that retouched
The embodiment stated is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work, belongs to the present invention
The range of protection.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, With reference to embodiment
The present invention is described in further detail.
Embodiment 1
As shown in Figure 1, the system comprises current wetland pond body, water inlet pipe, outlet pipe, water distributor and packing layer, work
When, sewage enters system through water inlet pipe 12, and water distribution uniformity, into packing layer, water inlet is followed by the first biological layer of charcoal 9, plant
The biological layer of charcoal 6 of hypothallus 8, gravel layer 7, second, composite biological packing layer 5, third biology layer of charcoal 4, inorganic fillers layer 3 and the
Four biological layer of charcoal 2, will treated water through 11 discharge system of outlet pipe outside, the plant substrates layer is by zeolite, charcoal, thin
Sand, lime stone and loam composition, the plant substrates layer with a thickness of 100mm, wetland plant selects canna in the present embodiment,
The first biological layer of charcoal with a thickness of 300mm, the gravel layer with a thickness of 100mm, the thickness of the described second biological layer of charcoal
For 200mm, in the biologic packing material layer third biology layer of charcoal with a thickness of 100mm, the composite biological packing layer with a thickness of
150mm, the 4th biological layer of charcoal with a thickness of 250mm, the inorganic fillers layer is 25 parts of zeolites, 6 parts of steel slags, 8 parts of potteries
Grain, 2 parts of cement and 0.6 part of foaming agent, the partial size of charcoal is 8mm in the embodiment of the present invention.The contained a large amount of suspended matters of water inlet
With colloidal substance by the first biological layer of charcoal retention, as the amount of the flowing of water body, contained suspended material of intaking is reduced, while first
Biological layer of charcoal can adsorb a large amount of organic substance, be conducive to wetland plant rhizosphere microorganism and carry out denitrification, first is raw
Object layer of charcoal can also absorb solar heat, increase wetland temperature, convenient for the use of the system in winter.Water inlet continues flow through nothing
Machine object packing layer, the setting of inorganic fillers layer make it at fluidised form, improve coefficient of oxygen utilization.The two sides of composite biological packing layer are
Biological layer of charcoal, on the one hand, charcoal can adsorb the metabolin of microorganism, on the other hand, can slowly provide microorganism progress
The carbon source of denitrification.The phosphorus in water inlet is further adsorbed in the setting of 4th biological layer of charcoal, improves the absorption effect of nitrogen phosphorus in water
Fruit.
Embodiment 2
As shown in Figure 1, the system comprises current wetland pond body, water inlet pipe, outlet pipe, water distributor and packing layer, work
When, sewage enters system through water inlet pipe 12, and water distribution uniformity, into packing layer, water inlet is followed by the first biological layer of charcoal 9, plant
The biological layer of charcoal 6 of hypothallus 8, gravel layer 7, second, composite biological packing layer 5, third biology layer of charcoal 4, inorganic fillers layer 3 and the
Four biological layer of charcoal 2, will treated water through 11 discharge system of outlet pipe outside, the plant substrates layer is by zeolite, charcoal, thin
Sand, lime stone and loam composition, the plant substrates layer with a thickness of 150mm, wetland plant selects reed, institute in the present embodiment
State the first biological layer of charcoal with a thickness of 350mm, the gravel layer with a thickness of 150mm, the described second biological layer of charcoal with a thickness of
150mm, in the biologic packing material layer third biology layer of charcoal with a thickness of 150mm, the composite biological packing layer with a thickness of
100mm, the 4th biological layer of charcoal with a thickness of 200mm, the inorganic fillers layer is 20 parts of zeolites, 5 parts of steel slags, 6 parts of potteries
Grain, 1 part of cement and 0.2 part of foaming agent, the partial size of charcoal is 50mm in the embodiment of the present invention.The contained a large amount of suspended matters of water inlet
With colloidal substance by the first biological layer of charcoal retention, as the amount of the flowing of water body, contained suspended material of intaking is reduced, while first
Biological layer of charcoal can adsorb a large amount of organic substance, be conducive to wetland plant rhizosphere microorganism and carry out denitrification, first is raw
Object layer of charcoal can also absorb solar heat, increase wetland temperature, convenient for the use of the system in winter.Water inlet continues flow through nothing
Machine object packing layer, the setting of inorganic fillers layer make it at fluidised form, improve coefficient of oxygen utilization.The two sides of composite biological packing layer are
Biological layer of charcoal, on the one hand, charcoal can adsorb the metabolin of microorganism, on the other hand, can slowly provide microorganism progress
The carbon source of denitrification.The phosphorus in water inlet is further adsorbed in the setting of 4th biological layer of charcoal, improves the absorption effect of nitrogen phosphorus in water
Fruit.
Embodiment 3
As shown in Figure 1, the system comprises current wetland pond body, water inlet pipe, outlet pipe, water distributor and packing layer, work
When, sewage enters system through water inlet pipe 12, and water distribution uniformity, into packing layer, water inlet is followed by the first biological layer of charcoal 9, plant
The biological layer of charcoal 6 of hypothallus 8, gravel layer 7, second, composite biological packing layer 5, third biology layer of charcoal 4, inorganic fillers layer 3 and the
Four biological layer of charcoal 2, will treated water through 11 discharge system of outlet pipe outside, the plant substrates layer is by zeolite, charcoal, thin
Sand, lime stone and loam composition, the plant substrates layer with a thickness of 150mm, wetland plant selects water certain herbaceous plants with big flowers, institute in the present embodiment
State the first biological layer of charcoal with a thickness of 400mm, the gravel layer with a thickness of 200mm, the described second biological layer of charcoal with a thickness of
300mm, in the biologic packing material layer third biology layer of charcoal with a thickness of 150mm, the composite biological packing layer with a thickness of
150mm, the 4th biological layer of charcoal with a thickness of 300mm, the inorganic fillers layer is 35 parts of zeolites, 8 parts of steel slags, 10 parts of potteries
Grain, 3 parts of cement and 1 part of foaming agent, the partial size of charcoal is 100mm in the embodiment of the present invention.The contained a large amount of suspended matters of water inlet
With colloidal substance by the first biological layer of charcoal retention, as the amount of the flowing of water body, contained suspended material of intaking is reduced, while first
Biological layer of charcoal can adsorb a large amount of organic substance, be conducive to wetland plant rhizosphere microorganism and carry out denitrification, first is raw
Object layer of charcoal can also absorb solar heat, increase wetland temperature, convenient for the use of the system in winter.Water inlet continues flow through nothing
Machine object packing layer, the setting of inorganic fillers layer make it at fluidised form, improve coefficient of oxygen utilization.The two sides of composite biological packing layer are
Biological layer of charcoal, on the one hand, charcoal can adsorb the metabolin of microorganism, on the other hand, can slowly provide microorganism progress
The carbon source of denitrification.The phosphorus in water inlet is further adsorbed in the setting of 4th biological layer of charcoal, improves the absorption effect of nitrogen phosphorus in water
Fruit.
It is 0.020m in inflow3/ h in the case of hydraulic detention time 10-15 is small, tests charcoal of the present invention and increases
Strong type current wetland and common current wetland are shown in Table 1 to the disposition of sanitary sewage, treatment effect.
Table 1
As shown in Table 1, charcoal of the invention enhancing drowned flow artificial wet land is equal to the removal rate of nitrogen, phosphorus and organic pollutant
Higher than common current wetland, after being processed, water outlet suspended solid particles is few, and turbidity, coloration are lower, and effluent quality reaches country
" urban wastewater treatment firm pollutant emission standard " (GB18918-2002) level-one A standard, basically reaches surface water V class standard.
Embodiment described above is only that preferred embodiment of the invention is described, and is not carried out to the scope of the present invention
It limits, without departing from the spirit of the design of the present invention, those of ordinary skill in the art make technical solution of the present invention
Various changes and improvements, should all fall into claims of the present invention determine protection scope in.
Claims (10)
1. a kind of add the system for improving drowned flow artificial wet land wastewater treatment efficiency based on charcoal, which is characterized in that the system
System include current wetland pond body, water inlet pipe, outlet pipe, water distributor and packing layer, described filler layer vertical direction from top to bottom according to
Secondary is plant substrates packing layer, biologic packing material layer and inorganic fillers layer, and the plant substrates packing layer vertical direction is arrived from above
Under be followed successively by wetland plant, the first biological layer of charcoal, plant substrates layer, gravel layer and the second biological layer of charcoal, the biologic packing material layer
Vertical direction is followed successively by composite biological packing layer and third biology layer of charcoal from top to bottom, and the inorganic fillers layer is zeolite, steel
Slag, haydite, cement and foaming agent, the water distributor are connected at the top of described filler layer with water inlet pipe through inside current wetland
Logical, described filler layer bottom is connected with outlet pipe.
2. according to claim 1 add the system for improving drowned flow artificial wet land wastewater treatment efficiency based on charcoal,
It is characterized in that, the inorganic fillers layer lower part of described filler layer vertical direction is connected with the 4th biological layer of charcoal.
3. according to claim 1 add the system for improving drowned flow artificial wet land wastewater treatment efficiency based on charcoal,
It is characterized in that, the charcoal is mixed by harvesting constructed wetland plant, walnut shell and chestnut peel waste.
4. according to claim 1 add the system for improving drowned flow artificial wet land wastewater treatment efficiency based on charcoal,
It is characterized in that, the first biological layer of charcoal with a thickness of 300-400mm, the plant substrates layer described in the plant substrates packing layer
Be made of zeolite, charcoal, fine sand, lime stone and loam, the gravel layer with a thickness of 100-200mm, second biology
Layer of charcoal with a thickness of 150-300mm.
5. according to claim 1 add the system for improving drowned flow artificial wet land wastewater treatment efficiency based on charcoal,
It is characterized in that, third biology layer of charcoal with a thickness of 100-150mm, the thickness of the composite biological packing layer in the biologic packing material layer
Degree is 100-150mm.
6. according to claim 2 add the system for improving drowned flow artificial wet land wastewater treatment efficiency based on charcoal,
Be characterized in that, the 4th biological layer of charcoal with a thickness of 200-300mm.
7. according to claim 1 add the system for improving drowned flow artificial wet land wastewater treatment efficiency based on charcoal,
It is characterized in that, the wetland plant is reed, water certain herbaceous plants with big flowers, canna.
8. according to claim 1 add the system for improving drowned flow artificial wet land wastewater treatment efficiency based on charcoal,
It is characterized in that, the inorganic fillers layer is 20-35 parts of zeolites, 5-8 parts of steel slags, 6-10 parts of haydites, 1-3 parts of cement and 0.2-
1.0 parts of foaming agents.
9. according to claim 3 add the system for improving drowned flow artificial wet land wastewater treatment efficiency based on charcoal,
It is characterized in that, the partial size of the charcoal is 8-100mm.
10. according to claim 5 add the system for improving drowned flow artificial wet land wastewater treatment efficiency based on charcoal,
It is characterized in that, the composite biological packing layer is by the microorganism being loaded on inside hollow float ball and basalt fragment filler group
At.
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| CN113387446A (en) * | 2021-07-13 | 2021-09-14 | 中国科学院、水利部成都山地灾害与环境研究所 | Landscape type multi-medium tail water treatment vertical subsurface flow constructed wetland |
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