CN110482706A - It is a kind of that brick is given up as the artificial wet land system of compounded mix using zeolite-sea oyster shell- - Google Patents
It is a kind of that brick is given up as the artificial wet land system of compounded mix using zeolite-sea oyster shell- Download PDFInfo
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- CN110482706A CN110482706A CN201910804747.5A CN201910804747A CN110482706A CN 110482706 A CN110482706 A CN 110482706A CN 201910804747 A CN201910804747 A CN 201910804747A CN 110482706 A CN110482706 A CN 110482706A
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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
- 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
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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Abstract
The present invention discloses a kind of using the useless brick of zeolite-sea oyster shell-as the artificial wet land system of compounded mix, the artificial swamp ecological treatment apparatus of the polymorphic types sewage treatment such as sanitary sewage, livestock breeding wastewater, landfill leachate.The present invention includes vertical subsurface flow wetland device, the filling mode of paving is filled out using big size grading poor " positive and negative partial size mixing ", and using extra large oyster shell, useless three kinds of large specific surface areas of brick and zeolite, nitrogen phosphorus adsorption capacity is good, the biological volume of holding is high material as main wet land filler, the lasting, efficient of Constructed Wetland Ecology System, stable operation ensure that.The invention patent has many advantages, such as that at low cost, low energy consumption, is not easy to plug, denitrogenation dephosphorizing is high-efficient, occupied area is small, structure is simple, operational management is convenient, and can combine with ecological construction and urban greening function.
Description
Technical field
The invention belongs to field of water pollution control, and in particular to a kind of to give up brick as compounded mix using zeolite-sea oyster shell-
Artificial wet land system.
Background technique
Artificial marsh sewage treatment system is a kind of sewage disposal technology to grow up the 1970s, because having place
Reason effect is good, builds the advantages that management low with operating cost, easy to maintain and the most attention by countries in the world, becomes in recent years
To develop a kind of faster New Technology about Wastewater Treatment.Artificial marsh sewage treatment system is as a kind of novel polluted-water ecology
Recovery technique, at present at all kinds of polluted-waters (eutrophication water, landfill leachate, livestock breeding wastewater, food wastewater etc.)
It is widely applied in improvement.
Artificial swamp is mainly made of filler, plant, microorganism three parts.Wherein filler is the important composition of artificial swamp
Part provides growing environment for wetland plant, microorganism, its own has also assisted in the physical and chemical process of sewage purification, special
It is not to be played an important role to the removal of phosphor in sewage element.According to Liebig minimum law, phosphorus element is considered to be water body richness battalion
One of major inducing factor of feedingization, thus in artificial marsh sewage treatment system filler selection, directly determine system
Dephosphorization efficiency to influence system to the repairing effect of polluted-water, thus has a very important significance.
Performance of Constructed Wetlands Substrates is mostly based on traditional soil, sand, gravel etc. at present, but due to these material absorption properties compared with
Difference, after running for a period of time, filler progressivelyes reach saturation to the absorption of phosphorus to artificial swamp, and removal rate is begun to decline.Sometimes
Even there is the phenomenon that phosphorus element parses in filler, and then influences the continual and steady treatment effect of entire artificial wet land system.Mesh
It is preceding laboratory and lab scale research in, many high-efficiency artificial adsorption stuffings such as haydite, modified zeolite, active carbon etc. are used to substitute
Traditional Performance of Constructed Wetlands Substrates carries out purification experiment, and achieves preferable treatment effect, but due to the cost of these fillers
It is higher, it is difficult to carry out the promotion and application of large area in practical projects.
Extra large oyster shell and useless brick are the by-product of coastal area of southeastern China aquaculture and Process of Urbanization Construction respectively.In recent years,
With the popularization of oyster " hanging culture " technology extra large in ALONG COASTAL FUJIAN aquatic farm and the expansion of the market demand, extra large oyster production, processing energy
Power and scale increase substantially, and extra large oyster production and processing generates, has accumulated a large amount of waste-sea oyster shell, become ALONG COASTAL FUJIAN township
New one of the pollution sources in village, cause very big harm；Meanwhile with the quickening of Urbanization Process In China, the big rule of urban construction
Mould is carried out, and building waste (including the brick that largely gives up) discharge amount increases severely, and has accounted for 30% of municipal refuse total amount or more.Exhausted big portion
Divide building waste to be just transported to countryside air storage or landfill without any processing, exacerbates environmental pollution.Due to above two
Discharge material amount is big, effective rate of utilization is not high, and traditional Land use systems added value is relatively low, so being badly in need of opening up new utilization
Approach.Therefore, above-mentioned 2 kinds of materials and 4 kinds of Performance of Constructed Wetlands Substrates being widely used are carried out respectively in laboratory conditions
Absorption property comparative test, research find that 6 kinds of fillers inhale phosphorus ability successively are as follows: extra large oyster shell > is useless, and brick > volcanic rock > expands leech
Stone > zeolite > gravel, wherein extra large oyster shell is 32.20gkg to the theoretical saturated extent of adsorption of phosphorus element-1, it is far longer than other materials
Material, the brick that gives up are 0.60gkg to the theoretical saturated extent of adsorption of phosphorus element-1, also show preferable dephosphorization ability, this mainly by
The calcium containing high level, aluminium and ferro element in extra large oyster shell and useless brick；And the ammonia nitrogen absorption ability of 6 kinds of materials is successively are as follows:
The sea zeolite > oyster shell > gives up brick > volcanic rock > expanded vermiculite > gravel, and wherein zeolite, extra large oyster shell and useless brick are to ammonia nitrogen
Theoretical saturated extent of adsorption is respectively 11.63gkg-1、0.42g·kg-1And 0.21gkg-1, three all has stronger ammonia nitrogen
Adsorption capacity.In addition, also analyzed the physicochemical properties of 6 kinds of fillers and composition respectively, research finds extra large oyster shell, useless
Brick and zeolite are easy to microorganism growth attachment, and hydraulic characteristic(s) is good, are better suited artificial swamp building fillers.In recent years,
Foreign countries have started to carry out sewage treatment research for extra large oyster shell as Performance of Constructed Wetlands Substrates, and achieve preferable research achievement.But
It is that will lead to system water outlet pH for extra large oyster shell as Performance of Constructed Wetlands Substrates completely since the alkalinity of extra large oyster shell is relatively strong (pH=9-10)
Value increases, and can inhibit the growth of plant and microorganism in wet land system.To overcome this defect, in the structure of artificial swamp
During building, extra large oyster shell, useless brick (pH=7-8) and zeolite (pH=5-6) carry out mixing filling by innovative, make compound fill out
Material is easy to attached growth of microorganisms and has stronger nitrogen phosphorus adsorption capacity simultaneously, while in artificial swamp fluidised form and wetland plant
It is optimized and revised in selection, can not only guarantee a stable Constructed Wetland Ecology System in this way and continues efficiently to purify
Effect can also substantially reduce the construction cost of artificial swamp.
Summary of the invention
The purpose of the present invention is to provide a kind of low cost, low energy consumption, be not easy to plug, denitrogenation dephosphorizing is high-efficient, land occupation face
Product is small, structure is simple, operational management is easily using extra large oyster shell, useless brick and zeolite as the artificial wet land system of compounded mix.
It is proposed by the present invention a kind of using the useless brick of zeolite-sea oyster shell-as the artificial wet land system of compounded mix including vertical
Drowned flow artificial wet land mode, sewage are pumped into artificial swamp pond body by intake pump, by dendritic perforation sparge pipe in soil layer surface
Water distribution uniformity, then sewage flow through zeolite-sea oyster shell-give up brick compounded mix layer by deflector remittance gathering ground, finally by
Outlet pipe discharge is discharged, and the water outlet water level in artificial wet land system can be adjusted by outlet pipe.
Including vertical subsurface flow wetland mode, which includes the upper and lower (i.e. soil horizon and zeolite-sea
Oyster shell-gives up brick compounded mix layer), (Red Earth in Fujian Province soil can be used, and mixes river sand and fertile soil) thickness 10- in upper layer of soil layer
20cm, sieving；Lower layer's zeolite-sea oyster shell-gives up brick compounded mix thickness 50-100cm, particle size range: 5-30mm, filler filling
Mode is that big size grading poor " positive and negative partial size mixing " fills out paving, and the big size grading poor " positive and negative partial size mixing " fills out filling out for paving
Fill mode are as follows: lower layer's packing material size is big, and upper layer packing material size is small.
System is provided with outlet pipe, outlet pipe by adjust water level can the useless brick of zeolite-sea oyster shell-in systems it is compound
Unsaturation layer and zone of saturation are created in packing layer, to realize aerobic ammonia-oxidizing bacteria, nitrite oxidizing bacteria, anaerobic ammonia oxidizing bacteria
With effective collaboration of denitrifying bacterium, enriches nitrogen in system and remove approach, improve ammonia nitrogen removal efficiency of the invention.
Dendritic perforation sparge pipe is set on artificial swamp soil horizon surface layer, the setting of dendritic perforation sparge pipe can effectively reduce
Waterpower dead zone in artificial wet land system guarantees good hydraulic flow state in wet land system, and wet land filler layer is effectively prevent to block
And the pollutant in sewage can be made to obtain fully degraded.
Kind is implanted with wetland plant in artificial wet land system, and has screened well developed root system, secreted that oxygen ability is strong, plant of good stress resistance
Object is as constructed wetland plant.
Increase has overflow pipe, when system is impacted by heavy rain or hydraulic loading is larger, reduces system using overflow pipe
Be hit degree, guarantees effective operation of the invention.
Processing for the polymorphic types sewage such as sanitary sewage, livestock breeding wastewater, landfill leachate.
Influent load is 0.05-0.5m3/(m2·d)
It is artificial as the artificial marsh sewage treatment system of compounded mix, including vertical subsurface flow using the useless brick of zeolite-sea oyster shell-
Wetland mode is made of artificial swamp pond body, packing layer, wetland plant system, water distribution system.Wet land filler layer is located at Manual moist
In ground pond body, for convenience of system water outlet, artificial swamp pool bottom is provided with the gradient of 0.5-1%.Packing layer is divided into upper and lower two
Layer, filling mode are that big size grading poor " positive and negative partial size mixing " fills out paving, and the big size grading is poor " positive and negative partial size mixing "
Fill out the filling mode of paving are as follows: underlying substrate partial size is big, and overlayer matrix partial size is small.So packing layer is respectively as follows: 10- from top to bottom
20cm thickness soil horizon (can be used Fujian locality red soil, and mix river sand and fertile soil), sieving；50-100cm thickness zeolite-sea oyster
Shell-gives up brick compounded mix layer, particle size range: 5-30mm, and the specific thickness of packing layer depends on size and the place of wetland pond body
Manage pollutional load.Artificial wet land system is due to using vertical subsurface flow wetland mode, using dendritic perforation sparge pipe in soil
Layer surface water distribution uniformity is gathering ground, setting among the two in compounded mix layer rear end filling gravel (particle size range: 5-10cm)
Deflector separates, and gathering ground water outlet is discharged by outlet pipe, the adjustable water outlet water level of outlet pipe, and then can be in compounded mix layer
Zone of saturation and unsaturation layer are created, aerobic ammonia-oxidizing bacteria, anaerobic ammonia oxidizing bacteria, nitrite oxidizing bacteria and denitrifying bacterium are utilized
Common synergistic effect, enriches the Approach of Removal of Nitrogen in wetland.In addition, planting reed or cattail etc. in matrix (filler) layer surface
Well developed root system and the strong herbaceous plant of oxygen ability is secreted, further promotes the removal of nitrogen P elements in sewage.
Slave part of the invention:
(1) water sampling pipe.
In order to investigate artificial wet land system in the process of running to the removal situation of pollutant index each in sewage, it is being
Specific position in system packing layer buries porous PVC pipe as water sampling pipe, to facilitate analysis system to imitate the processing of sewage
Fruit, it has been experienced that water sampling pipe has the danger of blocking after longtime running, therefore prevents from blocking up in water sampling tube outer surface package
The nethike embrane of plug be it is required, to guarantee the normal acquisition of water sample.
(2) dendritic perforation sparge pipe.To guarantee that artificial wet land system water distribution is uniform, in wet land filler layer surface, that is, soil horizon
Dendritic perforation sparge pipe is arranged in surface, and water inlet flows through packing layer after soil layer surface is uniformly distributed and then collects leads into gathering ground
Cross outlet pipe discharge.The setting of dendritic perforation sparge pipe can effectively reduce the waterpower dead zone in artificial swamp, guarantee wet land system
Interior good hydraulic flow state makes to obtain fully degraded into the pollutant in water.
(3) gathering ground.For guarantee artificial wet land system catchment uniformly, artificial wet land system water outlet be arranged gathering ground,
The bulk gravel (particle size range: 5-10cm) of uniform particle sizes is filled in gathering ground, treated, and sewage is uniform in gathering ground
It collects and is then discharged by outlet pipe.The setting of gathering ground can guarantee good hydraulic flow state in system, and prevent wetland end
It causes blockages.
(4) deflector.In order to guarantee the stability of good hydraulic flow state and gathering ground inside wetland, in packing layer and
Deflector is set between gathering ground.Treated sewage uniformly receives water in gathering ground by deflector, and the setting of deflector can
The stability for guaranteeing gathering ground prevents the small size particle of packing layer from blocking gathering ground and then influences it to receive water function.
(5) overfall facility.Impact of the heavy rain to system when rainy season in order to prevent, is provided with overflow in artificial wet land system
Pipe, when heavy rain causes hydraulic loading excessive, sewage can directly flow away from overflow pipe, to protect this sewage disposal system from punching
It hits.
(6) material selection.In test and actual production, corresponding material: laboratory can be selected as the case may be
Bench scale can be selected the materials such as organic glass or PVC board, pilot scale or steel and concrete structure or brick mix structure can be used more on a large scale
Deng.
Starting and stable operation part of the invention:
(1) assembling of equipment.In order to obtain high sewage treating efficiency, it is necessary to artificial wet land system and some other attached
Belong to combination of facilities to connect, forms the sewage disposal system of complete set.Affiliated facility therein includes itself, such as
Specific position in artificial swamp buries water sampling pipe, ORP electrode and DO electrode；By pipeline intake pump and dendritic
Sparge pipe of perforating is connected, it is ensured that sewage disposal system is gone on smoothly.Also some is other than equipment, such as distribution box and system
Connection, the setting of robot control system(RCS) parameter etc., attachment and the present invention are combined to constitute at the water of complete set
Science and engineering skill.
(2) filling of the useless brick compounded mix of zeolite-sea oyster shell-.Wet land filler layer is filled in artificial swamp pond body, is filled out
The bed of material is divided into upper layer and lower layer, and filling mode is that big size grading poor " positive and negative partial size mixing " fills out paving, and the big size grading is poor
" positive and negative partial size mixing " fills out the filling mode of paving are as follows: underlying substrate partial size is big, and overlayer matrix partial size is small.So packing layer is from upper
It is respectively as follows: under and 10-20cm thickness soil horizon (Fujian locality red soil can be used, and mix river sand and fertile soil), is sieved；50-
100cm thickness oyster shell-waste brick-zeolite compounded mix layer, particle size range: 5-30mm.
(3) starting of equipment.After equipment assembling, filler filling work are completed, activation system can be prepared.Equipment opens
Move it is appropriate to the occasion use manual simulation's waste water to reduce the influence of other factors, verify the present invention starting when realize sewage in nitrogen P elements
The key parameter control condition of removal.
(4) determination of the monitoring technological parameter of effluent index and engineering regulate and control in equipment running process.It was run in equipment
Cheng Zhong, some pollutant index such as COD, BOD, NH4 +-N、NO3 --N、NO2 --N、PO4 3-The parameters such as-P, TN and TP can reflect this hair
Bright treatment effect and operating status to waste water can judge wet land system to the removal situation of pollution element by monitoring from macroscopic view
And the situation of change of control condition.The concentration of each pollutant in sewage is stepped up according to a certain concentration gradient to improve this hair
Bright pollutant burden enhances its processing capacity.It can by the regulation to parameters such as DO, pH value and oxidation-reduction potentials (ORP)
Optimize the operating status of wet land system.
(5) stable operation of equipment.After system starts successfully, by stablizing maintenance operation, guarantee various operation ginsengs
Number is stablized.Later the application of the present invention in practice can be investigated by being pumped into actual waste water.
Compared with the prior art, the present invention has the following advantages:
(1) special based on extra large oyster shell, the physicochemical characteristics of useless brick and zeolite, hydraulic characteristic and the absorption of nitrogen P elements
Property, in the present invention, using zeolite-sea oyster shell-give up brick compounded mix can be remarkably reinforced wet land system to ammonia nitrogen in sewage,
Phosphorus and the dirty absorption fixed function that suspends, the in addition porous structure of compounded mix (especially micropore), biggish specific surface area
Also it is very beneficial for the attachment and growth of microorganism, and then is conducive to the degradation of organic matter.Therefore, with zeolite-sea oyster shell-
Useless brick compounded mix, which replaces traditional material as Performance of Constructed Wetlands Substrates, can greatly improve artificial wet land system to polluted-water
Purification and remediation efficiency.
(2) due to using the stronger extra large oyster shell of adsorption capacity, useless brick (phosphorus adsorption capacity is stronger) and zeolite (ammonia nitrogen absorption
Ability is stronger) compounded mix as artificial swamp host material, and the design pattern of drowned flow artificial wet land can be used in the present invention,
Unit area processing load can be increased, so that the building occupied land area of artificial swamp is greatly lowered, this is right
It is worth in the southeastern coastal areas of Chinese soil resource scarcity with more promotion and application.Simultaneously as use extra large oyster shell with
Useless two kinds of obsolete materials of brick, solve existing environmental problem, the construction cost of artificial swamp are also greatly saved, and realize
The high-efficiency resource recycling of culture fishery and Process of Urbanization Construction solid waste.
(3) filler in artificial wet land system uses the filling side that big size grading poor " positive and negative partial size mixing " fills out paving
Formula, and to guarantee that artificial wet land system water distribution is uniform, for vertical subsurface flow wetland mode, it is arranged in wet land filler layer surface
Dendritic perforation sparge pipe, water inlet, which flows through packing layer after surface layer is uniformly distributed and then collects, passes through outlet pipe row into gathering ground
Out.Two kinds of measures can effectively reduce the waterpower dead zone in artificial swamp, guarantee good hydraulic flow state in wet land system, effectively anti-
Only wet land filler layer blocks and the pollutant in sewage can be made to obtain fully degraded.
(4) it screened well developed root system, secreted that oxygen ability is strong, plant of good stress resistance is as constructed wetland plant, it in this way can be with
The problem of environmental pH increases in wet land system caused by being slowed down using the organic acid of plant root exudation because of extra large oyster shell.Meanwhile
The impact resistance of artificial wet land system not only can be enhanced in suitable wetland plant, improves the high efficiency and stabilization of processing system
Property, while the landscape effect of artificial swamp can also be promoted.
(5) since using the useless brick of zeolite-sea oyster shell-, filler low as the artificial wet land system operating cost of compounded mix is inhaled
Attached saturation capacity is big, the period is long, microbial biomass is abundant, so parallel-adder settle-out time of the present invention is long compared with traditional wetland, is not necessarily to
Frequently replacement matrix, greatly reduces the operation and management cost of artificial wet land treating system.
Detailed description of the invention
Fig. 1, Fig. 2 are the sectional view and plan view of the useless brick compounded mix artificial wet land system of zeolite-sea oyster shell-respectively.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
The present invention includes artificial swamp pond body 1, soil horizon 2, oyster shell-waste brick-zeolite compounded mix layer 3, wetland plant
Object system 4, dendritic perforation sparge pipe 5, deflector 6, gathering ground 7, outlet pipe 8, water sampling pipe 9, overflow pipe 10.
One: sewage is pumped into artificial swamp pond body 1 by intake pump, uniform on 2 surface of soil horizon by dendritic perforation sparge pipe 5
Water distribution, then sewage flows through the useless brick compounded mix layer 3 of zeolite-sea oyster shell-and is collected by deflector 6 into gathering ground 7, is finally discharged
It is discharged by outlet pipe 8, the water outlet water level in artificial wet land system can be adjusted by outlet pipe 8.
Two: illustrating that present embodiment, the present invention include vertical subsurface flow wetland mode in conjunction with Fig. 1 and Fig. 2, which fills out
The bed of material includes the upper and lower (i.e. soil horizon 2 and oyster shell-waste brick-zeolite compounded mix layer 3), and upper layer is 10-20cm thick
Soil horizon 2 (uses Fujian locality red soil, and mixes river sand and fertile soil), sieving；Lower layer is 50-100cm thickness zeolite-sea oyster
Shell-gives up brick compounded mix layer 3, particle size range: 5-30mm.Filler filling mode be big size grading it is poor " positive and negative partial size mix
Close " paving is filled out, the big size grading poor " positive and negative partial size mixing " fills out the filling mode of paving are as follows: lower layer's packing material size is maximum, upper layer
Packing material size is minimum.
Three: illustrating that present embodiment, present embodiment are provided with outlet pipe in artificial wet land system in conjunction with Fig. 1 and Fig. 2
8, outlet pipe 8 can create unsaturation layer in the useless brick compounded mix layer 3 of zeolite-sea oyster shell-in systems by adjusting water level
And zone of saturation, to realize effective association of aerobic ammonia-oxidizing bacteria, nitrite oxidizing bacteria, anaerobic ammonia oxidizing bacteria and denitrifying bacterium
Together, the approach for enriching nitrogen removing in system, greatly improves ammonia nitrogen removal efficiency of the invention.
Four: illustrating that present embodiment, present embodiment are arranged dendritic on 2 surface layer of artificial swamp soil horizon in conjunction with Fig. 1 and Fig. 2
The setting of perforation sparge pipe 5, dendritic perforation sparge pipe 5 can effectively reduce the waterpower dead zone in artificial swamp, guarantee wet land system
Interior good hydraulic flow state effectively prevent wet land filler layer to block and the pollutant in sewage can be made to obtain fully degraded.
Five: illustrating present embodiment in conjunction with Fig. 1 and Fig. 2, present embodiment is planted in artificial wet land system is implanted with wetland plant
Object, and screened well developed root system, secreted that oxygen ability is strong, plant of good stress resistance is as constructed wetland plant.
Six: illustrating present embodiment in conjunction with Fig. 1 and Fig. 2, present embodiment increase has overflow pipe 10, when system is by heavy rain
When impact or hydraulic loading are larger, it is hit degree using 10 reduction system of overflow pipe, guarantees effective operation of the invention.
The present invention is described in further details below by embodiment:
Embodiment 1: artificial swamp uses vertical subsurface flow wetland low water level water exit mode, and compounded mix is by sea in system
Oyster shell, useless brick and zeolite mixed preparing form.Wet land system area is 6m2, plantation wetland plant is reed.System waterpower is negative
Lotus is 5cm/d, is intake by the way of the continuous dosing of sewage, and intaking as COD, ammonia nitrogen, total nitrogen, total phosphorus concentration is respectively 300-
400mg·L-1、40-50mg·L-1、60-70mg·L-1、5-10mg·L-1Sanitary sewage.After present invention processing,
COD, ammonia nitrogen, COD of the removal rate in 95% or more, water outlet of total nitrogen and total phosphorus, ammonia nitrogen, total nitrogen and total phosphorus concentration difference are low
In 30mgL-1、1mg·L-1、5mg·L-1And 0.05mgL-1。
Embodiment 2: artificial swamp uses vertical subsurface flow wetland low water level water exit mode, and compounded mix is by sea in system
Oyster shell, useless brick and zeolite mixed preparing form.Wet land system area is 6m2, plantation wetland plant is reed.System waterpower is negative
Lotus is 2cm/d, is intake by the way of the continuous dosing of sewage, and intaking as COD, ammonia nitrogen, total nitrogen, total phosphorus concentration is respectively 1500-
1800mg·L-1、700-750mg·L-1、800-1000mg·L-1、70-80mg·L-1Livestock and poultry cultivation anaerobic effluent.By this
Invention processing after, COD, total phosphorus removal rate 80% or more, ammonia nitrogen and nitrogen removal rate are 70% or more.
Embodiment 3: artificial swamp uses vertical subsurface flow wetland high water level water exit mode, and compounded mix is by sea in system
Oyster shell, useless brick and zeolite mixed preparing form.Wet land system area is 6m2, plantation wetland plant is reed.System waterpower is negative
Lotus is 2cm/d, is intake by the way of the continuous dosing of sewage, and intaking as COD, ammonia nitrogen, total nitrogen, total phosphorus concentration is respectively 1500-
1800mg·L-1、700-750mg·L-1、800-1000mg·L-1、70-80mg·L-1Livestock and poultry cultivation anaerobic effluent.By this
After invention processing, COD, ammonia nitrogen, total nitrogen and total phosphorus removal rate 80% or more, water level is discharged due to adjusting, compound
Packing layer is successfully realized the common collaboration of aerobic ammonia-oxidizing bacteria, anaerobic ammonia oxidizing bacteria, nitrite oxidizing bacteria and denitrifying bacterium
Effect, improves the nitric efficiency of system.
Claims (8)
1. a kind of give up brick as the artificial wet land system of compounded mix using zeolite-sea oyster shell-, including vertical subsurface flow wetland mould
Formula, it is characterised in that: sewage is pumped into artificial swamp pond body (1) by intake pump, by dendritic perforation sparge pipe (5) in soil horizon
(2) surface water distribution uniformity, then sewage flow through zeolite-sea oyster shell-give up brick compounded mix layer (3) by deflector (6) remittance
Gathering ground (7).
2. it is according to claim 1 a kind of using the useless brick of zeolite-sea oyster shell-as the artificial wet land system of compounded mix,
It is characterized in that, being finally discharged and being discharged by outlet pipe (8), the water outlet water level in artificial wet land system can be adjusted by outlet pipe (8).
3. it is according to claim 1 a kind of using the useless brick of zeolite-sea oyster shell-as the artificial wet land system of compounded mix,
It is characterized in that, including vertical subsurface flow wetland mode, which includes the upper and lower (i.e. soil horizon (2) and boiling
Stone-sea oyster shell-gives up brick compounded mix layer (3)), upper layer of soil layer (2) (using Red Earth in Fujian Province soil, and mixes river sand and humic
Soil) thickness 10-20cm, sieving；Lower layer's zeolite-sea oyster shell-gives up brick compounded mix layer (3) thickness 50-100cm, particle size range: 5-
30mm, filler filling mode are that big size grading poor " positive and negative partial size mixing " fills out paving, big poor " the positive and negative partial size of size grading
The filling mode of paving is filled out in mixing " are as follows: lower layer's packing material size is big, and upper layer packing material size is small.
4. it is according to claim 1 a kind of using the useless brick of zeolite-sea oyster shell-as the artificial wet land system of compounded mix,
It is characterized in that, outlet pipe (8) can be created by adjusting water level in the useless brick compounded mix layer (3) of zeolite-sea oyster shell-in systems
Make unsaturation layer and zone of saturation.
5. it is according to claim 1 a kind of using the useless brick of zeolite-sea oyster shell-as the artificial wet land system of compounded mix,
It is characterized in that, dendritic perforation sparge pipe (5) is set on artificial swamp soil horizon (2) surface layer.
6. it is according to claim 1 a kind of using the useless brick of zeolite-sea oyster shell-as the artificial wet land system of compounded mix,
It is characterized in that, kind is implanted with wetland plant in artificial wet land system, and screens well developed root system, secretes that oxygen ability is strong, plant of good stress resistance
Object is as constructed wetland plant.
7. it is according to claim 1 a kind of using the useless brick of zeolite-sea oyster shell-as the artificial wet land system of compounded mix,
It is characterized in that, increase has overflow pipe (10).
8. it is a kind of using oyster shell-waste brick-zeolite as the artificial wet land system of compounded mix described in -6 according to claim 1,
It is characterized in that the influent load of the invention patent is 0.05-0.5m3/(m2·d)。
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| CN201910804747.5A Withdrawn CN110482706A (en) | 2019-08-28 | 2019-08-28 | It is a kind of that brick is given up as the artificial wet land system of compounded mix using zeolite-sea oyster shell- |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112028246A (en) * | 2020-07-23 | 2020-12-04 | 北京建工资源循环利用投资有限公司 | Constructed wetland filler and constructed wetland system |
| CN112062596A (en) * | 2020-08-07 | 2020-12-11 | 兰州理工大学 | Novel environment-friendly wetland filler brick and preparation method thereof |
-
2019
- 2019-08-28 CN CN201910804747.5A patent/CN110482706A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112028246A (en) * | 2020-07-23 | 2020-12-04 | 北京建工资源循环利用投资有限公司 | Constructed wetland filler and constructed wetland system |
| CN112062596A (en) * | 2020-08-07 | 2020-12-11 | 兰州理工大学 | Novel environment-friendly wetland filler brick and preparation method thereof |
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