CN103304033A - Artificial wetland system taking oyster shell-waste brick-zeolite as composite filler - Google Patents
Artificial wetland system taking oyster shell-waste brick-zeolite as composite filler Download PDFInfo
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- CN103304033A CN103304033A CN2012100682317A CN201210068231A CN103304033A CN 103304033 A CN103304033 A CN 103304033A CN 2012100682317 A CN2012100682317 A CN 2012100682317A CN 201210068231 A CN201210068231 A CN 201210068231A CN 103304033 A CN103304033 A CN 103304033A
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Abstract
The invention discloses an artificial wetland system taking oyster shell-waste brick-zeolite as composite filler. The invention relates to a sewage treatment device, and discloses an artificial wetland ecological treatment device applicable to the treatment of various sewages such as domestic wastewater, livestock and poultry breeding wastewater and landfill leachate. The system disclosed by the invention comprises a vertical undercurrent artificial wetland device and wetland filler, wherein the wetland filler is implemented in a large particle size grading difference 'obverse and reverse particle size mixing' filling mode and taking oyster shell, waste bricks and zeolite which are large in specific surface area, good in nitrogen and phosphorus adsorption capacity and high in volume of organism holding, so that the sustainable, efficient and stable operation of an artificial wetland ecosystem is ensured. The artificial wetland system disclosed by the invention has the advantages of low cost, low energy consumption, high nitrogen and phosphorus removal efficiency, small land-occupied area, simple structure, convenient operation management and the like, is not easy to jam, and can be combined with ecological construction and urban greening functions.
Description
Technical field
It is the artificial marsh sewage treatment system of compounded mix with extra large oyster shell-useless fragment of brick-zeolite that patent of the present invention relates to a kind of.Belong to the water pollution control field.
Background technology
Artificial marsh sewage treatment system is a kind of sewage disposal technology that grows up the seventies in 20th century, treatment effect is good because having, construction and working cost are low, be easy to the generally attention that advantages such as maintenance management are subjected to countries in the world, becomes development in recent years a kind of sewage disposal new technology faster.Artificial marsh sewage treatment system has obtained widespread use at present as a kind of novel polluted-water ecological reestablishment in all kinds of polluted-waters (eutrophication water, percolate, livestock breeding wastewater, food wastewater etc.) are administered.
Artificial swamp mainly is made up of filler, plant, microorganism three parts.Wherein filler is the important component part of artificial swamp, and for wetland plant, microorganism provide growing environment, himself has also participated in the physical and chemical process of sewage purification, particularly important effect is being brought into play in the removal of phosphor in sewage element.According to the minimum law of Liebig, the phosphorus element is considered to be one of main induction factor of body eutrophication, so filler selection in the artificial marsh sewage treatment system, directly determined the dephosphorization efficiency by using of system, thereby the system that influences is to the repairing effect of polluted-water, thereby has very important meaning.
The artificial swamp filler is many based on traditional soil, sand, gravel etc. at present, but because these material absorption properties are relatively poor, artificial swamp is after operation for some time, and filler reaches capacity gradually to the absorption of phosphorus, and its clearance begins to descend.Sometimes even the plain phenomenon of resolving of phosphorus in the filler occurs, and then influence the continual and steady treatment effect of whole artificial wet land system.At present in laboratory and lab scale research, a lot of high-efficiency artificial adsorption stuffings such as haydite, modified zeolite, gac etc. are used to substitute traditional artificial swamp filler and purify experiment, and obtained treatment effect preferably, but because the cost of these fillers is higher, is difficult in and carries out large-area promotion and application in the actual engineering.
Sea oyster shell and useless fragment of brick are respectively the by products that coastal area of southeastern China aquaculture and urbanization are built.In recent years, along with extra large oyster in the ALONG COASTAL FUJIAN aquafarm " hangs " popularization of technology and the expansion of the market requirement foster, sea oyster production, working ability and scale increase substantially, sea oyster process for processing produces, has accumulated a large amount of wastes-Hai oyster shell, become one of new source of pollution in ALONG COASTAL FUJIAN rural area, caused very big harm; Simultaneously, along with the quickening of Chinese Urbanization's process, urban construction is carried out on a large scale, and building waste (comprising a large amount of useless fragments of brick) quantity discharged increases severely, and has accounted for more than 30% of municipal wastes total amount.Overwhelming majority building waste is just transported to countryside air storage or landfill without any processing, has aggravated environmental pollution.Because above-mentioned two kinds of material discharge amounts are big, effective rate of utilization is not high, and tradition utilizes the mode added value also lower, so be badly in need of opening up the new approach that utilizes.
Therefore, under laboratory condition, respectively above-mentioned 2 kinds of materials and 4 kinds of artificial swamp fillers that are widely used have been carried out the absorption property comparison test, discover that 6 kinds of fillers suction phosphorus abilities are followed successively by: extra large oyster shell＞useless fragment of brick＞volcanics＞expanded vermiculite＞zeolite＞gravel, wherein extra large oyster shell is 32.20 gkg to the theoretical saturated extent of adsorption of phosphorus element
-1, being far longer than other materials, useless fragment of brick is 0.60 gkg to the theoretical saturated extent of adsorption of phosphorus element
-1, also showing dephosphorization ability preferably, this mainly is owing to contain calcium, aluminium and the ferro element of high level in extra large oyster shell and the useless fragment of brick; And the ammonia nitrogen absorption ability of 6 kinds of materials is followed successively by: zeolite＞extra large oyster shell＞useless fragment of brick＞volcanics＞expanded vermiculite＞gravel, its mesolite, extra large oyster shell and useless fragment of brick are respectively 11.63 gkg to the theoretical saturated extent of adsorption of ammonia nitrogen
-1, 0.42 gkg
-1With 0.21 gkg
-1, the three all has stronger ammonia nitrogen absorption ability.In addition, respectively physicochemical property and the composition of 6 kinds of fillers are also analyzed, discovered that extra large oyster shell, useless fragment of brick and zeolite are easy to microorganism growth and adhere to, hydraulic performance is good, is that better suited artificial swamp makes up filler.In recent years, abroad begun extra large oyster shell is carried out sewage disposal research as the artificial swamp filler, and obtained achievement in research preferably.But because the alkalescence of extra large oyster shell strong (pH=9-10) can cause the water outlet pH of system value to raise as the artificial swamp filler on extra large oyster shell fully, and can suppress the central plant of wet land system and microbial growth.For overcoming this defective, in the building process of artificial swamp, sea oyster shell, useless fragment of brick (pH=7-8) and zeolite (pH=5-6) are by the filling that mixes of novelty, make compounded mix be easy to attached growth of microorganisms and also have stronger nitrogen phosphorus adsorptive power simultaneously, select to optimize and revise in artificial swamp fluidised form and wetland plant simultaneously, so not only can guarantee a stable artificial swamp ecosystem and sustainable high efficiency decontamination effect improving, can also reduce the construction cost of artificial swamp greatly.
Summary of the invention
The purpose of patent of the present invention is to provide a kind of low cost, less energy-consumption, is difficult for obstructions, denitrogenation dephosphorizing efficient height, floor space are little, simple in structure, operational management is the artificial wet land system of compounded mix with extra large oyster shell, give up fragment of brick and zeolite easily.
What the present invention proposed is the artificial marsh sewage treatment system of compounded mix with extra large oyster shell, useless fragment of brick and zeolite, comprises the vertical subsurface flow wetland pattern, is made up of artificial swamp pond body, packing layer, wetland plant system, water distribution system.The wet land filler layer is positioned at artificial swamp pond body, and for making things convenient for system's water outlet, body bottom in artificial swamp pond is provided with the gradient of 0.5-1%.Packing layer is divided into two-layer up and down, and filling mode is that the shop is filled out in big size grading poor " positive and negative particle diameter mixing ", and the filling mode that the shop is filled out in described big size grading poor " positive and negative particle diameter mixing " is: lower floor's matrix particle diameter is big, and upper strata matrix particle diameter is little.So packing layer is respectively from top to bottom: the thick pedosphere of 10-20 cm (can adopt the local red soil in Fujian, and mix river sand and vegetable mould), sieve; The thick extra large oyster shell of 50-100 cm-useless fragment of brick-zeolite compounded mix layer, particle size range: 5-30 mm, the concrete thickness of packing layer depend on the size of wetland pond body and handle pollution load.Artificial wet land system is owing to adopt the vertical subsurface flow wetland pattern, adopt dendritic perforation water distributing pipe at pedosphere surface water distribution uniformity, fill gravel (particle size range: 5-10 cm) be the catchment area in compounded mix layer rear end, in the middle of both flow deflector being set separates, the catchment area water outlet is discharged by rising pipe, rising pipe can be regulated the water outlet water level, and then can in the middle of the compounded mix layer, create saturated zone and unsaturation layer, utilize the common synergy of aerobic ammonia-oxidizing bacteria, anaerobic ammonia oxidizing bacteria, NOB and denitrifying bacteria, enrich the central denitrogenation approach of wetland.In addition, at well developed root system such as matrix (filler) laminar surface plantation reed or cattail and secrete the strong herbaceous plant of oxygen ability, further promote the removal of nitrogen phosphoric in the middle of the sewage.
The slave part of patent of the present invention:
(1) water sampling pipe.In order to investigate artificial wet land system removal situation to each pollutent index in the sewage in operational process, specific position in system's packing layer is buried the porous PVC pipe underground as the water sampling pipe, to make things convenient for analytical system to sewage treatment effect, experience shows that water sampling pipe after the long-time running has the danger of obstruction, therefore prevent that at water sampling tube outer surface parcel the nethike embrane that stops up from being essential, to guarantee the normal collection of water sample.
(2) dendritic perforation water distributing pipe.Even for guaranteeing the artificial wet land system water distribution, be that the pedosphere surface arranges dendritic perforation water distributing pipe at the wet land filler laminar surface, the water inlet packing layer of flowing through after the pedosphere surface evenly distributes then is collected into the catchment area and discharges by rising pipe.The setting of dendritic perforation water distributing pipe can effectively reduce the waterpower dead band in the artificial swamp, guarantees good waterpower fluidised form in the wet land system, and the pollutent in the water is into fully degraded.
(3) catchment area.For guaranteeing that artificial wet land system catchments evenly, in the artificial wet land system water side catchment area is set, (particle size range: 5-10 cm), the sewage after the processing is evenly collected then in the catchment area and is discharged by rising pipe to fill the uniform bulk gravel of particle diameter in the catchment area.The setting of catchment area can guarantee waterpower fluidised form good in the system, and prevents that latch up phenomenon from appearring in the wetland end.
(4) flow deflector.In order to guarantee the inner good waterpower fluidised form of wetland and the stability of catchment area, between packing layer and catchment area, flow deflector is set.Sewage after the processing is evenly received water by flow deflector in the catchment area, and the setting of flow deflector can guarantee the stability of catchment area, and the small size particle that prevents packing layer stops up the catchment area and then influences it receives water function.
(5) overfall facility.Heavy rain is provided with upflow tube to the impact of system in artificial wet land system when preventing rainy season, and when heavy rain caused hydraulic load excessive, sewage can directly flow away from upflow tube, avoids impacting to protect this Sewage treatment systems.
(6) material selection.In test and actual production, can select corresponding material as the case may be: the laboratory bench scale can be selected material, pilot scale or more extensive steel and concrete structure or the brick mix structures etc. of adopting such as synthetic glass or PVC sheet material for use.
The startup of patent of the present invention and steady running part:
(1) assembling of equipment.In order to obtain high sewage treating efficiency, must be connected artificial wet land system and some other affiliated facilities, form the complete Sewage treatment systems of a cover.Affiliated facility wherein comprises itself, buries water sampling pipe, ORP electrode and DO electrode underground such as the specific position in the middle of artificial swamp; By pipeline intake pump is linked to each other with dendritic perforation water distributing pipe, guarantee carrying out smoothly of Sewage treatment systems.Also having some is beyond the equipment, as the setting of being connected of switch box and system, robot control system(RCS) parameter etc., has constituted one and overlaps complete water technology thereby annex and patent of the present invention combined.
(2) filling of extra large oyster shell-useless fragment of brick-zeolite compounded mix.The wet land filler layer is filled in the body of artificial swamp pond, packing layer is divided into two-layer up and down, filling mode is that the shop is filled out in big size grading poor " positive and negative particle diameter mixing ", and the filling mode that the shop is filled out in described big size grading poor " positive and negative particle diameter mixing " is: lower floor's matrix particle diameter is big, and upper strata matrix particle diameter is little.So packing layer is respectively from top to bottom: the thick pedosphere of 10-20 cm (can adopt the local red soil in Fujian, and mix river sand and vegetable mould), sieve; The thick extra large oyster shell of 50-100 cm-useless fragment of brick-zeolite compounded mix layer, particle size range: 5-30 mm.
(3) startup of equipment.After device assembles, filler filling work are finished, can prepare start-up system.The appropriate to the occasion employing of device start manual simulation waste water is verified and is realized the key parameter control condition that the nitrogen phosphoric is removed in the sewage when patent of the present invention starts to reduce the influence of other factors.
(4) the definite and engineering regulation and control of the monitoring processing parameter of effluent index in the equipment running process.In equipment running process, some pollutent indexs such as COD, BOD, NH
4 +-N, NO
3 --N, NO
2 --N, PO
4 3-Parameters such as-P, TN and TP can reflect patent of the present invention to treatment effect and the running status of waste water, can judge that wet land system is to the removal situation of pollution element and the changing conditions of control condition from macroscopic view by monitoring.Progressively improve the concentration of each pollutent in the sewage according to the finite concentration gradient to improve the pollutant load of patent of the present invention, strengthen its processing power.By can optimize the running status of wet land system to DO, pH value and the isoparametric regulation and control of redox potential (ORP).
(5) steady running of equipment.After system starts successfully, by stablizing maintenance operation, guarantee that various operating parameters are stable.Can investigate patent of the present invention application in practice by pumping into actual waste water afterwards.
Patent of the present invention compared with prior art has the following advantages:
(1) based on physics-chem characteristic, hydraulic characteristic and the nitrogen phosphoric characterization of adsorption of extra large oyster shell, useless fragment of brick and zeolite, in patent of the present invention, adopt extra large oyster shell-useless fragment of brick-zeolite compounded mix can obviously strengthen wet land system to ammonia nitrogen, phosphorus in the sewage and the dirty absorption fixed action that suspends, the structure of compounded mix porous (especially micropore), bigger specific surface area also are very beneficial for adhering to of microorganism and grow in addition, and then are conducive to organic Degradation.Therefore, replace traditional material can improve artificial wet land system greatly to purification and the remediation efficiency of polluted-water as the artificial swamp filler with extra large oyster shell-useless fragment of brick-zeolite compounded mix.
(2) since the compounded mix that adopts the stronger extra large oyster shell of adsorptive power, useless fragment of brick (the phosphorus adsorptive power is stronger) and zeolite (the ammonia nitrogen absorption ability is stronger) as the artificial swamp substrate material, and patent of the present invention can adopt the Design Mode of drowned flow artificial wet land, can increase unit surface and handle load, so that making up the shared land area of artificial swamp reduces significantly, these southeastern coastal areas for the Chinese soil resource scarcity have more promotion and application and are worth.Simultaneously, owing to adopted extra large oyster shell and two kinds of rejected materials of useless fragment of brick, solve the environmental problem that exists, also saved the construction cost of artificial swamp greatly, and realized the high-efficiency resource recycling of culture fishery and urbanization construction solid waste.
(3) filler in the artificial wet land system has adopted big size grading poor " positive and negative particle diameter mixing " to fill out the filling mode of shop, and it is even for guaranteeing the artificial wet land system water distribution, for the vertical subsurface flow wetland pattern, be provided with dendritic perforation water distributing pipe at the wet land filler laminar surface, the water inlet packing layer of flowing through after the top layer evenly distributes then is collected into the catchment area and discharges by rising pipe.Two kinds of measures can effectively reduce the waterpower dead band in the artificial swamp, guarantee good waterpower fluidised form in the wet land system, effectively prevent the obstruction of wet land filler layer and pollutants in sewage is fully degraded.
(4) screened well developed root system, secrete that the oxygen ability is strong, the plant of good stress resistance is as constructed wetland plant, can utilize the organic acid of plant root exudation to slow down the problem of environment pH value rising in the wet land system that causes because of extra large oyster shell like this.Simultaneously, suitable wetland plant not only can strengthen the impact resistance of artificial wet land system, improves high efficiency and the stability for the treatment of system, can also promote the landscape effect of artificial swamp simultaneously.
(5) owing to be that the artificial wet land system running cost of compounded mix is low, the filling adsorption saturation capacity is big, the cycle long, microbial biomass is abundant with extra large oyster shell-useless fragment of brick-zeolite, so compare with traditional wetland, patent parallel-adder settle-out time of the present invention is long, need not frequently to change matrix, greatly reduce operation and the handling cost of artificial wet land treating system.
Description of drawings
Fig. 1 is the sectional view of extra large oyster shell-useless fragment of brick-zeolite compounded mix artificial wet land system.
Fig. 2 is the orthographic plan of extra large oyster shell-useless fragment of brick-zeolite compounded mix artificial wet land system.
Wherein, 1, pedosphere 2, extra large oyster shell-useless fragment of brick-zeolite compounded mix layer 3, wetland plant system 4, dendritic perforation water distributing pipe 5, flow deflector 6, catchment area 7, rising pipe 8, water sampling pipe 9, upflow tube 10.
Embodiment
Embodiment one: sewage pumps into artificial swamp pond body 1 by intake pump, by dendritic perforation water distributing pipe 5 at pedosphere 2 surperficial water distribution uniformities, then effluent stream is gone into catchment area 7 through extra large oyster shell-useless fragment of brick-zeolite compounded mix layer 3 by flow deflector 6 collection, last water outlet is discharged by rising pipe 8, and the water outlet water level in the artificial wet land system can be regulated by rising pipe 8.
Embodiment two: present embodiment is described in conjunction with Fig. 1 and Fig. 2, patent of the present invention comprises the vertical subsurface flow wetland pattern, this system's packing layer comprises the upper and lower (being pedosphere 2 and extra large oyster shell-useless fragment of brick-zeolite compounded mix layer 3), the upper strata is that the thick pedosphere 2(of 10-20 cm adopts the local red soil in Fujian, and mixing river sand and vegetable mould), sieve; Lower floor is the thick extra large oyster shell of 50-100 cm-useless fragment of brick-zeolite compounded mix layer 3, particle size range: 5-30 mm.The filler filling mode is that the shop is filled out in big size grading poor " positive and negative particle diameter mixing ", and the filling mode that the shop is filled out in described big size grading poor " positive and negative particle diameter mixing " is: lower floor's packing material size maximum, upper strata packing material size minimum.
Embodiment three: present embodiment is described in conjunction with Fig. 1 and Fig. 2, present embodiment is provided with rising pipe 8 in artificial wet land system, rising pipe 8 can be created unsaturation layer and saturated zone in the extra large oyster shell-useless fragment of brick-zeolite compounded mix layer 3 in system by regulating water level, thereby realize the effectively collaborative of aerobic ammonia-oxidizing bacteria, NOB, anaerobic ammonia oxidizing bacteria and denitrifying bacteria, enrich the approach that nitrogen removes in the middle of the system, improve the ammonia nitrogen removal efficient of patent of the present invention greatly.
Embodiment four: present embodiment is described in conjunction with Fig. 1 and Fig. 2, present embodiment arranges dendritic perforation water distributing pipe 5 on artificial swamp pedosphere 2 top layers, the setting of dendritic perforation water distributing pipe 5 can effectively reduce the waterpower dead band in the artificial swamp, guarantee good waterpower fluidised form in the wet land system, effectively prevent the obstruction of wet land filler layer and pollutants in sewage is fully degraded.
Embodiment five: in conjunction with Fig. 1 and Fig. 2 present embodiment is described, present embodiment is planted in artificial wet land system and is implanted with wetland plant, and screened well developed root system, secreted that the oxygen ability is strong, the plant of good stress resistance is as constructed wetland plant.
Embodiment six: present embodiment is described in conjunction with Fig. 1 and Fig. 2, the present embodiment increase has upflow tube 10, when system is impacted by heavy rain or hydraulic load when big, can utilize the upflow tube 10 reduction systems degree that is hit, guarantee effective operation of patent of the present invention.
Be described in further details below by the present invention of embodiment:
Embodiment 1: artificial swamp adopts vertical subsurface flow wetland low-water level water exit mode, and compounded mix is formed by extra large oyster shell, useless fragment of brick and zeolite mixed preparing in the system.The wet land system area is 6 m
2, the plantation wetland plant is reed.System's hydraulic load is 5 cm/d, and the mode that adopts sewage to batch is continuously intake, and intakes to be respectively 300-400 mgL for COD, ammonia nitrogen, total nitrogen, total phosphorus concentration
-1, 40-50 mgL
-1, 60-70 mgL
-1, 5-10 mgL
-1Sanitary sewage.After patent processing of the present invention, the clearance of COD, ammonia nitrogen, total nitrogen and total phosphorus is all more than 95%, and the COD in the water outlet, ammonia nitrogen, total nitrogen and total phosphorus concentration are lower than 30 mgL respectively
-1, 1 mgL
-1, 5 mgL
-1With 0.05 mgL
-1
Embodiment 2: artificial swamp adopts vertical subsurface flow wetland low-water level water exit mode, and compounded mix is formed by extra large oyster shell, useless fragment of brick and zeolite mixed preparing in the system.The wet land system area is 6 m
2, the plantation wetland plant is reed.System's hydraulic load is 2 cm/d, and the mode that adopts sewage to batch is continuously intake, and intakes to be respectively 1500-1800 mgL for COD, ammonia nitrogen, total nitrogen, total phosphorus concentration
-1, 700-750 mgL
-1, 800-1000 mgL
-1, 70-80 mgL
-1The water outlet of livestock and poultry cultivation anaerobism.After patent processing of the present invention, the clearance of COD, total phosphorus is all more than 80%, and ammonia nitrogen and nitrogen removal rate are more than 70%.
Embodiment 3: artificial swamp adopts vertical subsurface flow wetland high-water water exit mode, and compounded mix is formed by extra large oyster shell, useless fragment of brick and zeolite mixed preparing in the system.The wet land system area is 6 m
2, the plantation wetland plant is reed.System's hydraulic load is 2 cm/d, and the mode that adopts sewage to batch is continuously intake, and intakes to be respectively 1500-1800 mgL for COD, ammonia nitrogen, total nitrogen, total phosphorus concentration
-1, 700-750 mgL
-1, 800-1000 mgL
-1, 70-80 mgL
-1The water outlet of livestock and poultry cultivation anaerobism.After patent processing of the present invention, the clearance of COD, ammonia nitrogen, total nitrogen and total phosphorus is all more than 80%, owing to regulate the water outlet water level, successfully realize the common synergy of aerobic ammonia-oxidizing bacteria, anaerobic ammonia oxidizing bacteria, NOB and denitrifying bacteria at the compounded mix layer, improved the nitric efficiency of system.
Claims (8)
1. one kind is the artificial wet land system of compounded mix with extra large oyster shell-useless fragment of brick-zeolite, comprise the vertical subsurface flow wetland pattern, it is characterized in that: sewage pumps into artificial swamp pond body (1) by intake pump, by dendritic perforation water distributing pipe (5) at the surperficial water distribution uniformity of pedosphere (2), then effluent stream is gone into catchment area (7) through extra large oyster shell-useless fragment of brick-zeolite compounded mix layer (3) by flow deflector (6) collection, last water outlet is discharged by rising pipe (8), and the water outlet water level in the artificial wet land system can pass through rising pipe (8) to be regulated.
According to claim 1 a kind of be the artificial wet land system of compounded mix with extra large oyster shell-useless fragment of brick-zeolite, it is characterized in that it comprises the vertical subsurface flow wetland pattern, this system's packing layer comprises the upper and lower (being pedosphere (2) and extra large oyster shell-useless fragment of brick-zeolite compounded mix layer (3)), the upper strata is that the thick pedosphere of 10-20 cm (2) (can adopt the local red soil in Fujian, and mixing river sand and vegetable mould), sieve; Lower floor is the thick extra large oyster shell of 50-100 cm-useless fragment of brick-zeolite compounded mix layer (3), particle size range: 5-30 mm, the filler filling mode is that the shop is filled out in big size grading poor " positive and negative particle diameter mixing ", the filling mode that the shop is filled out in described big size grading poor " positive and negative particle diameter mixing " is: lower floor's packing material size is big, and the upper strata packing material size is little.
According to claim 1 a kind of be the artificial wet land system of compounded mix with extra large oyster shell-useless fragment of brick-zeolite, it is characterized in that system is provided with rising pipe (8), rising pipe (8) can be created unsaturation layer and saturated zone in the extra large oyster shell-useless fragment of brick-zeolite compounded mix layer (3) in system by regulating water level, thereby realize the effectively collaborative of aerobic ammonia-oxidizing bacteria, NOB, anaerobic ammonia oxidizing bacteria and denitrifying bacteria, enrich the approach that nitrogen removes in the middle of the system, improve the ammonia nitrogen removal efficient of patent of the present invention greatly.
According to claim 1 a kind of be the artificial wet land system of compounded mix with extra large oyster shell-useless fragment of brick-zeolite, it is characterized in that it arranges dendritic perforation water distributing pipe (5) on artificial swamp pedosphere (2) top layer, the setting of dendritic perforation water distributing pipe (5) can effectively reduce the waterpower dead band in the artificial swamp, guarantee good waterpower fluidised form in the wet land system, effectively prevent the obstruction of wet land filler layer and pollutants in sewage is fully degraded.
According to claim 1 a kind of be the artificial wet land system of compounded mix with extra large oyster shell-useless fragment of brick-zeolite, it is characterized in that in the artificial wet land system planting and be implanted with wetland plant, and screened well developed root system, secreted that the oxygen ability is strong, the plant of good stress resistance is as constructed wetland plant.
According to claim 1 a kind of be the artificial wet land system of compounded mix with extra large oyster shell-useless fragment of brick-zeolite, it is characterized in that its increase has upflow tube (10), when system suffers heavy rain impact or hydraulic load big, can utilize upflow tube (10) the reduction system degree that is hit, guarantee effective operation of patent of the present invention.
According to claim 1-6 described a kind of be the artificial wet land system of compounded mix with extra large oyster shell-useless fragment of brick-zeolite, it is characterized in that patent of the present invention can be used for the processing of polymorphic type sewage such as sanitary sewage, livestock breeding wastewater, percolate.
According to claim 1-6 described a kind of be the artificial wet land system of compounded mix with extra large oyster shell-useless fragment of brick-zeolite, the influent load that it is characterized in that patent of the present invention is 0.05-0.5 m
3/ (m
2D).
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| CN111018120A (en) * | 2019-11-27 | 2020-04-17 | 广州市龙运博环保技术有限公司 | Application of porous ecological filler system in heavy metal and/or nitrogen and phosphorus polluted aquaculture wastewater remediation |
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| CN113158142A (en) * | 2021-04-12 | 2021-07-23 | 中国科学院城市环境研究所 | Quantitative calculation method for determining contribution rate of removal path of organic pollutants in constructed wetland |
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| CN114956330A (en) * | 2022-05-06 | 2022-08-30 | 重庆大学溧阳智慧城市研究院 | Biological and ecological cooperative treatment method for leachate of garbage transfer station |
| CN114988573A (en) * | 2022-05-06 | 2022-09-02 | 重庆大学溧阳智慧城市研究院 | Artificial wetland system for treating leachate of garbage transfer station |
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| CN113158142A (en) * | 2021-04-12 | 2021-07-23 | 中国科学院城市环境研究所 | Quantitative calculation method for determining contribution rate of removal path of organic pollutants in constructed wetland |
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| CN114988573A (en) * | 2022-05-06 | 2022-09-02 | 重庆大学溧阳智慧城市研究院 | Artificial wetland system for treating leachate of garbage transfer station |
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