CN105236671B - A kind of ecological green land sewage disposal system and its method - Google Patents
A kind of ecological green land sewage disposal system and its method Download PDFInfo
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- CN105236671B CN105236671B CN201510638115.8A CN201510638115A CN105236671B CN 105236671 B CN105236671 B CN 105236671B CN 201510638115 A CN201510638115 A CN 201510638115A CN 105236671 B CN105236671 B CN 105236671B
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Biological Treatment Of Waste Water (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The present invention relates to a kind of ecological green land sewage disposal system, it is characterised in that：Including the regulating reservoir sequentially connected, ecological green land pond and three-dimensional sustained release chemical feed pipe, and additionally provide the processing method of ecological green land sewage disposal system：Include intercept process of (1) sewage through the regulating reservoir, suspension and fine sand grain can be intercepted：(2) sewage after step (1) intercept process enter through the water distribution system and enter the ecological green land pond, sewage from it is upper and pass sequentially through the water distribution layer set in ecological green land pond, root layer, microorganism grown layer, adsorption layer, cushion and collection water layer enter captation：(3) catchment (4) output clear water, compared with prior art, the advantage of the invention is that biomembrance process and Artificial Wetland Techniques are organically combined in microorganism grown layer, increase biologic packing material, microorganism is promoted to anchor at enrichment and growth on filler with membranaceous, microorganism is in immobilized state, and microorganism simultaneously has aerobic and anaerobism alternate environment, increases microbial action effect.
Description
Technical field
The present invention relates to a kind of sewage disposal technology, more particularly to one kind to be carried out sewage efficiently using Eco-Green Space System
Denitrogenation, the processing system and method for dephosphorization.
Background technology
With developing rapidly for China's economy, population increase, living standards of the people step up, industrialization and urbanization
The quickening of paces, water consumption sharply increase, and quantity of wastewater effluent also accordingly increases, and exacerbate shortage and the water environment of freshwater resources
Pollution.The aggravation of water environment pollution problem also causes body eutrophication problem also outstanding day by day, therefore in sewage effluent
The requirement of nitrogen, phosphorus index also improving constantly.The GB18918-2002 of China's issue in 2002《Urban wastewater treatment firm is dirty
Contaminate thing discharge standard》Middle one-level A standards require that TP is less than 0.5mg/l, and ammonia nitrogen is less than 5mg/l, and total nitrogen is less than 15mg/l.This will
Ask in sewage disposal technology, it is necessary to focus on the removal of the nutriments such as nitrogen, phosphorus.General Modern sewage handling process is divided into
One-level, two level and three-level (advanced treating), coagulation is generally physical treatment, and there are grid, setting pot the step of generally comprising,
Two stage treatment is generally biological treatment, such as activated sludge process, biomembrance process, firsts and seconds processing hydraulic art technology and equipment oneself
Discharge standard through being difficult to reach requirement, particularly nitrogen phosphorus, but nitrogen phosphorus is the major pollutants of water pollution again, to be reached de-
The purpose of nitrogen dephosphorization, often still to add some sewage three-level (depth) treatment measures behind these techniques.Three-level is (deep
Degree) main method of processing has the stripping of ammonia, coagulant sedimentation, selective ion exchange deammoniation, sand filtration method, precipitation method dephosphorization to live
Property carbon adsorption, ion-exchange and electroosmose process etc., but these above-mentioned methods exist more that treating capacity is small or cost is high, place
It is numerous to manage equipment, maintains the shortcomings that complicated, some can also cause secondary pollution.
Artificial swamp is a kind of Novel sewage handling process to grow up the 1970s, and he is utilized in natural system
Physics, chemistry and the triple synergies of biology realize the purification of sewage.And traditional artificial swamp matrix mainly by soil,
Sandstone etc. is formed, and in sewage purification process, by the huge specific surface area of matrix, one layer of biomembrane is formed on its surface, raw
A small amount of microorganism can be adsorbed in the filtrate gap of thing film, the organic matter in sewage can be removed by self-acting so as to microorganism
With nitrogen phosphorus, but content of microorganisms in filtrate is less therefore microbial action is limited, and excessive free state microorganism easily causes
Filter clogging, so as to reduce absorption to soluble solid in sewage and dissimilarity organic matter, precipitation and the ability of removal, because
This, high in order to seek to design a kind of biomembrane content, matrix is not easily blocked, the Manual moist ground of heat-insulating property and good permeability
Matter, the Chinese patent application of an Application No. 201410375798.8 (publication No. CN104118941A)《A kind of efficient denitrification
Dephosphorization constructed wetland device》Provide one kind to apply immobilized microorganism in artificial wet land system, it includes artificial swamp
Pond, inlet pipeline, aerator and water unit, in addition to immobilized microorganism plate, described artificial swamp pond is from top to bottom
Totally 5 layers, it is followed successively by：Aerobic immobilized microorganism layer, gravel layer, Slag Layer, anaerobic immobilized microbial layer and furfural slag blanket；Institute
State and immobilized microorganism plate is provided with aerobic immobilized microorganism layer, immobilized sludge plate top is provided with by water inlet pipe and cloth
The inlet pipeline of water branch pipe composition, water inlet pipe pass through pool wall, Liquid valve and fluid flowmeter, immobilization are provided with water inlet pipe
The aerator being made up of aeration house steward and aeration branch pipe is installed, aeration house steward passes through pool wall, and aeration is always on the downside of microorganism plate
Gas valve and gas flow meter is installed on pipe；Described anaerobic immobilized microbial layer is provided with immobilized microorganism group
Part, immobilized microorganism component internal are provided with immobilized microorganism plate；Described water unit is by apopore, water leg and collection
Sink drain is formed, and filter is installed at apopore, and water unit is arranged on artificial swamp pond upper end and pond where water inlet pipe
Wall opposes；Described artificial swamp pond is built using steel and concrete structure, and pond body internal side wall and bottom surface set impervious barrier；It will be fixed
Change microorganism, microorganism aerobic Anaerobic Treatment and artificial swamp to organically combine, strengthen the effect of microorganism in artificial swamp, have
Effect improves wastewater treatment efficiency, and floor space is small, and cost of investment is low.But the phase can be due to after operation for the artificial swamp
Because its water distribution is uneven, crosses passband and decline, in matrix microorganism can not normal growth, especially build initial stage or water inlet in wetland
In the case that variation water quality is larger, in Wetland Substrate microorganism can not normal growth, when Wetland Substrate to organic matter, nitrogen, phosphorus inhale
After attached saturation, wetland variation effect can be decreased obviously.
Therefore, in order to strengthen the denitrogenation of artificial swamp, dephosphorization ability, it is necessary to make further to change to existing artificial swamp
Enter.
The content of the invention
A technical problem to be solved by this invention be for above-mentioned state of the art and providing one kind can effectively go
Except the ecological green land sewage disposal system of sewage nitrogen, phosphorus.
Another technical problem to be solved by this invention is to provide a kind of above-mentioned life for above-mentioned state of the art
State greenery patches sewage water treatment method.
Technical scheme is used by the present invention solves above-mentioned technical problem：The ecological green land sewage disposal system, it is special
Sign is：Including the regulating reservoir sequentially connected, ecological green land pond and three-dimensional sustained release chemical feed pipe, wherein：
The regulating reservoir, include sewage input port and sewage delivery outlet, the regulating reservoir is at least divided into one and is used for
The chamber of suspension and fine sand grain is filtered, and oriented ecological green land pond water distribution is set in the sewage delivery outlet of regulating reservoir
Submersible sewage pump；
The ecological green land pond, for removing the organic matter in sewage, ammonia nitrogen and phosphorus, include the water distribution of connection regulating reservoir
System, wetland plant, Wetland Substrate and captation, wherein, the Wetland Substrate is respectively collection water layer from bottom to up, is buffered
Layer, adsorption layer, microorganism grown layer root layer, water distribution layer, and the water distribution system is evenly distributed with the water distribution layer and is planted has
The wetland plant, the captation are then arranged in the collection water layer；
Dosing rod containing sustained release dephosphorization agent and disinfectant in the solid sustained release chemical feed pipe, in the adjusted pond of sewage, dives
In the state of dirty pump and water distribution system are flowed into the ecological green land pond, the wetland plant and wetland in ecological green land pond can be passed through
After the micro-ecological environment processing that matrix is built jointly, most exited into afterwards through the captation at three-dimensional sustained release chemical feed pipe
Reason.
Further, thick bar grating, slice grid and partition wall are disposed with the regulating reservoir, wherein, it is described every
The bottom of disconnected wall has the through hole that can prevent that suspension and fine sand grain from passing through, and at the 2/3 of regulating reservoir, by regulating reservoir
It is divided into volume ratio for 2：1 first chamber and second chamber, the thick bar grating and slice grid may be contained within first chamber,
For 4~10mm and at the 1/2 of first chamber, the grizzly bar spacing of the slice grid is the grizzly bar spacing of the thick bar grating
2~6mm is simultaneously located at the 3/4 of first chamber, and the submersible sewage pump is then arranged in second chamber.Regulating reservoir passes through thick, slice
Grid first filters off the larger suspension and fine sand grain of particle, while the suspension and fine sand grain filtered without both can be by the
The partition wall of three lines of defence stops, recycles submersible sewage pump that the sewage tentatively filtered is pumped into ecological green land pond.
Further, the collection water layer uses big cobblestone and stone according to 1:2、1:1 or 2:1 ratio uniform paving
Be located on the captation, laying height is 50~200mm, wherein, the particle diameter of cobblestone and stone be respectively 5~25mm,
10~30mm；
The cushion is using melon seeds piece and thin cobblestone according to 1:1、1:2 or 2:1 ratio uniform, which is laid on, to catchment
Laying height is 50~150mm on layer, wherein, the particle diameter of melon seeds piece and thin cobblestone is 3~20mm, 3~25mm respectively；
The adsorption layer to total phosphorus using can have vermiculite that good adsorption acts on, can efficiently adsorb conversion ammonia nitrogen and total
The zeolite or ceramic filter material of nitrogen, vermiculite is with zeolite or vermiculite with ceramic filter material according to 1:1、1:2、2:1、3:1 ratio is equal
On the buffer layer, laying height is 200~300mm for even laying, wherein, vermiculite particle diameter is 3~10mm, ceramic filter material and zeolite
Particle diameter is respectively 1~5mm and 1~5mm；
The microorganism grown layer is formed using the laying of 30~60 mesh engineering sands, and laying height is 300~500mm, interior
Portion sets biological membrane assembly, and the biological membrane assembly is made up of biofilm filler and filler support, wherein, the filler support uses
Rectangular frame made of reinforcing bar, and every 0.2~0.8m in the framework2A biofilm filler is laid in unit area, and it is described
Biofilm filler includes 3 D elastic filler or combined stuffing, wherein, the 3 D elastic filler by ultimate strength for >=
The strand and axial cord of 71dan and tensile strength >=15 collectively form, and combined stuffing is 150~200* of φ by specification
100mm fibre bundle, plastic sheet, sleeve pipe, axial cord composition；
Described root layer uses that thin cobblestone particle diameter is 3~25mm and 40 mesh engineering sands use 49:51 ratio is carried out
It is well mixed to be laid on microorganism grown layer, 100~150mm of laying height；
The water distribution layer, for burying water distributor to protect water distributor not to be destroyed, using cobblestone and melon seeds piece according to
Ratio is 1:2、1:1 or 2:1 ratio laying, the particle diameter of its cobble are 3~20mm, 3~25mm of particle diameter of melon seeds piece,
Laying height is 100~150mm.
Applicant carried out the correlation test of substantial amounts of filling kind, particle diameter and grading, and tens engineering practices, hair
It is bright go out the filler combination and grading mode, can most effectively improve wastewater treatment efficiency, reduce artificial swamp floor space, subtract
Few substrate clogging, and facilitate follow-up maintenance and operational management, in the design and implementation process of concrete engineering, further according to design
The different requirements of Inlet and outlet water water quality, adjust the thickness proportion of packing layer.Optimal specific embodiment is：
The collection water layer is using big cobblestone and stone according to 1:2 ratio uniform is laid on the captation,
Laying height is 50mm, wherein, the particle diameter of cobblestone and stone is respectively 5mm, 10mm；
The cushion is using melon seeds piece and thin cobblestone according to 1:1 ratio uniform is laid on collection water layer and lays height
Spend for 100mm, wherein, the particle diameter of melon seeds piece and thin cobblestone is 10mm, 10mm respectively；
The adsorption layer to total phosphorus using can have vermiculite that good adsorption acts on, can efficiently adsorb conversion ammonia nitrogen and total
The vermiculite of nitrogen is with zeolite according to 1:On the buffer layer, laying height is 200mm for 2 ratio uniform laying, wherein, vermiculite particle diameter is
10mm, the particle diameter of zeolite is 5mm；
The microorganism grown layer is formed using the laying of 30 mesh engineering sands, and laying height is 200mm, and inside sets biology
Membrane module, the biological membrane assembly are made up of biofilm filler and filler support, wherein, the filler support is using made of reinforcing bar
Rectangular frame, and per 0.5m in the framework2In unit area lay a biofilm filler, and the biofilm filler include it is vertical
Body elasticity filler or combined stuffing, wherein, the 3 D elastic filler by ultimate strength for >=71dan and tensile strength >=
15 strand and axial cord collectively forms, and combined stuffing is by fibre bundle that specification is 150~200*100mm of φ, plastics
Piece, sleeve pipe, axial cord composition；
Described root layer uses that thin cobblestone particle diameter is 5mm and 40 mesh engineering sands use 49:51 ratio is mixed
Uniformly it is laid on microorganism grown layer, laying height 100mm；
The water distribution layer, for burying water distributor to protect water distributor not to be destroyed, using cobblestone and melon seeds piece according to
Ratio is 1:2 ratio laying, the particle diameter of its cobble is 3mm, and the particle diameter of melon seeds piece is 3mm, and laying height is 100mm.
Further, the water distribution system supervisor uses pvc pipe, and caliber is 25~80mm, by 200~1000mm distance
It is uniformly distributed and shallow embedding is in water distribution layer, every supervisor sets a cloth water distributor, the cloth moisture at a distance of 200~800mm
Cloth device uses turning spurt water device, exposed 30~50mm in water distribution layer, is uniformly sprinkled water to surrounding.Can will be through using the water distribution system
The sewage of preliminary treatment is more uniformly dispersed in the surface in ecological green land pond, and the sewage for carrying out next step is deeply handled.
Further, the wetland plant can be canna, reed, calamus, cyperus alternifolius, iris, rush and wild rice stem
Formed etc. the plantation of a kind of and several wetland plants, plantation standoff distance is 150~300mm.Particularly when reed and wild rice stem replace
During plantation, reed pump oxygen function is relatively strong, the effect of wild rice stem sorption enhanced nitrogen, phosphorus is excellent, and the oxygen that can effectively improve aerobic area is dense
Degree, promote to release the efficient growth of phosphorus bacterium, and two plant growth cycles are shorter, can remove the nutrients such as nitrogen, phosphorus in time, prevent
Only there is the superfluous situation of nutrient to occur, while wild rice stem, reed are as industrial crops, also certain economic utilization valency
Value, can compensate land acquisition, the economic loss that electrical expenses are brought to a certain extent, meet the sustainable strategy of country's proposition
Demand for development and Rural Recycling Economy Development target.
Further, discharge outlet is provided with outside the three-dimensional sustained release chemicals dosing plant, the sustained release in the dosing rod set in it
Dephosphorization agent and disinfectant are according to 1:9~9:1 ratio mixes, and dosage is 1~3ppm.
The present invention also provides a kind of processing method of ecological green land sewage disposal system, it is characterised in that：Step is as follows：
(1) intercept process of the sewage through the regulating reservoir, suspension and fine sand grain big in sewage can be intercepted：
(2) sewage after step (1) intercept process enters through the water distribution system and enters the ecological green land pond, dirty
Water from it is upper and pass sequentially through the water distribution layer set in ecological green land pond, root layer, microorganism grown layer, adsorption layer, cushion and
Collection water layer enters captation：
(3) catchment, the clear water of ecological green land bottom of pond layer flows into the three-dimensional sustained release chemical feed pipe through the captation；
(4) clear water is exported, is discharged by the three-dimensional chemical feed pipe that is sustained.
Compared with prior art, the advantage of the invention is that sewage disposal is divided into primary physical treatment, the life of two level
Thing processing and three-level are disinfected, and thick, fine fack and partition wall processing are passed sequentially through in primary treatment, to filter off suspension and thin
Sand particle, the biological film process of two level is mainly that sewage passes through by respectively collection water layer, cushion, adsorption layer are micro- from bottom to up
Biological growth layer, root layer, after water distribution layer processing, to reach the purpose of denitrogenation dephosphorizing, key is also resided in microorganism grown layer
It is middle to organically combine biomembrance process and Artificial Wetland Techniques, increase biologic packing material, promote microorganism to be anchored at membranaceous on filler
Enrichment and growth, microorganism are in immobilized state, and microorganism is simultaneously imitated with aerobic and anaerobism alternate environment, increase microbial action
Fruit, therefore artificial swamp blocking is not easily caused, improve the overall wastewater treatment efficiency of artificial swamp.Form multi-level biota
Fall, main target is expedites the emergence of denitrification flora and release phosphorus flora, is natural because the region is in the fibrous root grown layer of plant
And oxygen layer, denitrification flora and release phosphorus flora relative growth under this anoxia condition and enliven, be advantageous to denitrification and release phosphorus progress,
Reach the effect of synchronous high-efficiency dephosphorization and denitrogenation, at the same also using can adsorption of nitrogen, the material of phosphorus construct adsorption layer, for effective
Control water outlet total nitrogen, total phosphorus；Finally, set to meet an urgent need in ecological green land water side and add spacetabs type dephosphorization agent and sanitizer device depth
Degree control effluent quality.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention 1；
Fig. 2 is the structural representation of filler support in biological membrane assembly in the embodiment of the present invention 1.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
Embodiment one
As shown in figure 1, this ecological green land sewage disposal system includes the regulating reservoir 1 that sequentially connects, ecological green land pond 2 and vertical
Body is sustained chemical feed pipe 3, wherein：
1) regulating reservoir 1, includes sewage input port 4 and sewage delivery outlet, regulating reservoir 1 successively by least by thick bar grating 5,
Slice grid 6 and partition wall 7 are separated into four rooms (level Four), and pipeline communication is used between room and room：Wherein, the bottom tool of partition wall 7
There is the through hole 26 that can prevent suspension and fine sand grain from passing through, and at the 2/3 of regulating reservoir 1, regulating reservoir 1 is divided into volume
Than for 2：1 first chamber and second chamber, thick bar grating 5 and slice grid 6 may be contained within first chamber, thick bar grating 5
Grizzly bar spacing for 4mm and at the 1/2 of first chamber, the grizzly bar spacing of slice grid 6 is 26mm and is located at first chamber
3/4 at, and submersible sewage pump 25 is then arranged at second chamber i.e. in fourth ventricle；
Purpose：The suspension that previous room can so be reduced flows into next room；
The fourth ventricle of regulating reservoir 1 is referred to as sewage lifting pump chamber, and the sewage delivery outlet of regulating reservoir 1 is mounted with a table flotation ball and dived
Dirty pump 25, after thick strip grid and stria grid remove and take out dregs, after water level reaches work liquid level, according to reality
Situation can use two ways to carry out water distribution：First, after reaching work liquid level, water distribution floats submersible sewage pump 25 up to water level is less than always
Ball work liquid level；2nd, after ball float reaches work liquid level, using water inlet 15min, 5min water intake mode is stopped, until water level
Less than work liquid level, such sewage is promoted to ecological green land pond 2 by ball float submersible sewage pump 25.
2) shape in ecological green land pond 2 can depending on site operation situation, can just, can toroidal it is indefinite, bottom and
Surrounding is laid after rammed earth using brick mix structure 19, laid inside impermeable layer 18, bottom laying water header 23, and
It is uniformly distributed the side pipe 24 that catchments；
Six layers of Wetland Substrate of laying in pond body, it is respectively to collect water layer 11, cushion 12, adsorption layer 13, micro- life from bottom to up
Thing grown layer 14, root layer 15, water distribution layer 16；Water distribution system 8, which is responsible for, wherein in water distribution layer 16 uses pvc pipe, caliber 25mm,
It is uniformly distributed by 200mm distance and shallow embedding is in water distribution layer 16, water distributor input is mounted with ball float through water distribution supervisor's connection
The sewage delivery outlet of regulating reservoir 1 of immersible pump, every supervisor set a cloth water distributor 10, cloth water distributor 10 at a distance of 200mm
Using turning spurt water device, the exposed 30mm in water distribution layer 16, uniformly sprinkled water to surrounding, will be through preliminary using the energy of water distribution system 8
The sewage of processing is more uniformly dispersed in the surface in ecological green land pond 2, easily penetrates multilayer Wetland Substrate；
Collecting system, there is water header 23 to be managed using PE, and caliber 25mm, the side pipe 24 that catchments passes through with water header 23
Reducing tee connects, and is often evenly distributed at a distance of 400-1000mm on water header 23, and the side pipe 24 that catchments uses PE materials, caliber
For 15mm, catchment 24 liang of STHs of side pipe, aperture 2mm, and pitch-row is uniformly distributed for 200mm.
Purpose；Sewage is after the multi task process of six layers of Wetland Substrate, and through catchmenting, side pipe 24 enters water header 23, so
Ecological green land pond 2 is flowed out afterwards to be handled into three-dimensional sustained release chemical feed pipe 3.
3) wetland plant 9
Mainly have：Canna, reed, calamus, cyperus alternifolius, iris, rush and wild rice stem etc..Various plants can be with hybrid
Plant, can be planted with burst, plantation standoff distance is 150mm.Wetland plant 9 uses reed and wild rice stem interval kind in the present embodiment one
Plant.
4) in embodiment one every layer of Wetland Substrate medium size composition building form：
| Wetland Substrate | Dielectric material |
| Water distribution layer 16 | 3mm cobblestones：3mm melon seeds piece=1:2, laying height is 100mm |
| Root layer 15 | The thin cobblestones of 5mm：40 mesh engineering sand=49:51, laying height is 100mm |
| Microorganism grown layer 14 | 30 mesh engineering sands, laying height is 300mm |
| Adsorption layer 13 | 10mm vermiculites：5mm zeolite=1:2, laying height is 200mm |
| Cushion 12 | 10mm melon seeds pieces：Thin cobblestone=1 of 10mm:1, laying height is 100mm |
| Collect water layer 11 | 5mm cobblestones：10mm stone=1:2, laying height is 50mm |
Wherein, six layers of Wetland Substrate from top to bottom, change from small to big by media particle size, and water distribution layer 16 is used to bury water distributor, protects
Shield water distributor is not destroyed and is effectively distributed sewage.
Root layer 15, wetland plant can be ensured while ensureing that sewage crosses passband by being mixed using thin cobblestone with sand
9 good roots, good environment is provided for its growth.
Microbial layer, because filler has abundant specific surface area and good bioaffinity, while using with one
The filler support of intensity is determined as shown in Fig. 2 the filler support uses rectangular frame made of reinforcing bar, and it is every in the framework
0.2m2A biofilm filler is laid in unit area, microorganism is in immobilized state, placement direction and water (flow) direction phase
Together, for adsorbing microorganism and organic pollution, microorganism anchors at enrichment and growth on filler with membranaceous, forms multi-level life
Thing group, main cultivation target is denitrification flora and releases phosphorus flora, and especially the region is in the fibrous root grown layer of plant, is
Natural simultaneous oxygen layer, denitrification flora and release phosphorus flora relative growth under this anoxia condition and enliven, be advantageous to denitrification with releasing
Phosphorus is carried out, and reaches the effect of synchronous high-efficiency dephosphorization and denitrogenation.
Adsorption layer 13, equivalent to total phosphorus in sewage and the storage or saving layer of total nitrogen, treat the nutrition of the microorganism of microbial layer
Its inadequate growth is taken, and because vermiculite has good suction-operated to total phosphorus, can be effectively adsorbed as by wetland plant 9
Absorbed with microorganism, the organophosphor of conversion, phosphate, zeolite and ceramic filter material can efficiently adsorb conversion ammonia nitrogen and total nitrogen, supply
Microorganism sorption enhanced, in case the microorganism of microbial layer is dead.If further front end process total nitrogen, total phosphorus are effectively to be controlled
System, unnecessary total nitrogen, total phosphorus will again be adsorbed in adsorption layer 13, slowly released always in the relatively low situation of influent concentration
Nitrogen, total phosphorus carry out the process of the above.
Therefore, the system lays six layers of Wetland Substrate, and Artificial Wetland Techniques and biomembrane are used in microorganism grown layer 14
Technology is combined, and by reasonably laying Wetland Substrate, builds biomembrane establishment, is improved denitrifying bacterium and is released the biofilm ring of phosphorus bacterium
Border, just begun to use even in system or inflow fluctuate larger situation, microorganism also can efficient biofilm, normal growth
Microorganism enhances to act synergistically with wetland plant 9, is advantageous to remove total nitrogen, total phosphorus in sewage.Leech is used in Wetland Substrate
Stone, zeolite or ceramic filter material etc. lay adsorption layer 13, the materials such as nitrogen, phosphorus are further adsorbed, deep-controlled nitrogen, phosphorus water outlet are dense
Degree, realizes efficient denitrification, the effect of dephosphorization.A kind of dosing for being sustained dephosphorization agent and disinfectant proportioning is especially added in end to fill
Postpone, dephosphorization again is carried out to water outlet and realizes disinfection.Above technology ensures that effluent quality reaches《Urban wastewater treatment firm
Pollutant emission standard》GB19819-2002 one-levels B and the above standard.
Its experimental result is following, and (this result is not increase the three-dimensional sustained release device water of chemical feed pipe 3 in end using septic tank to match somebody with somebody
The experimental result of water)：
In the case where not installing three-dimensional sustained release chemicals dosing plant 3, be can be seen that by the experiment of one month even in water inlet
In the case of fluctuation, sewage disposal can reach《Urban wastewater treatment firm pollutant emission standard》GB19819-2002 mono-
Level B standard, can reach one-level A requirement in third and fourth week, especially control of the system to total nitrogen and total phosphorus is preferable.Illustrate one
Kind efficient denitrification, the multifunctional ecological greenery patches system of dephosphorization have actual application value.
5) sewage water treatment method (process) of the embodiment of the present invention:
(1) intercept process in the adjusted pond 1 of sewage, can intercept suspension and fine sand grain big in sewage：
(2) sewage after step (1) intercept process enters through the water distribution system 8 and enters ecological green land pond 2, sewage
From upper and pass sequentially through the water distribution layer 16 set in ecological green land pond 2, root layer 15, microorganism grown layer 14, adsorption layer 13, slow
Rush layer 12 and collection water layer 11 enters captation：
(3) catchment, the clear water of the bottom of ecological green land pond 2 flows into three-dimensional sustained release chemical feed pipe 3 through captation；
(4) clear water is exported, is discharged by solid sustained release chemical feed pipe 3.
Embodiment two
The invention is related to a kind of efficient denitrification, the multifunctional ecological greenery patches system of dephosphorization, and it can be used for rural area villages and small towns, small
The regions such as living area are explored in type community, central business district, landscape water body, high-speed service area, oil drilling living area, field for a long time
Sanitary sewage disposal, do not limited by job site place, the Eco-Green Space System can be any according to the shape in place
Deformation, can be used cooperatively with surrounding landscape, and the special Eco-Green Space System is used at the sewage of region (such as landscape water body)
During reason, the three-dimensional sustained release device of chemical feed pipe 3 of leading portion regulating reservoir 1 and end can remove according to the actual requirements, the area with embodiment one
It is not：The medium size composition building form of every layer of Wetland Substrate in embodiment two：
| Wetland Substrate | Dielectric material |
| Water distribution layer 16 | 3mm cobblestones：3mm melon seeds piece=1:2, laying height is 150mm |
| Root layer 15 | The thin cobblestones of 3mm：40 mesh engineering sand=49:51, laying height is 150mm |
| Microorganism grown layer 14 | 40 mesh engineering sands, laying height is 500mm |
| Adsorption layer 13 | 10mm vermiculites：5mm zeolite=1:2, laying height is 300mm |
| Cushion 12 | 20mm melon seeds pieces：Thin cobblestone=1 of 20mm:1, laying height is 150mm |
| Collect water layer 11 | 25mm cobblestones：30mm stone=1:1, laying height is 200mm |
The wastewater influent water quality of table one
Structure by ecological green land sewage disposal system and the experimental result after the processing of sewage it is following (this result be
The experimental result of the three-dimensional sustained release device water of chemical feed pipe 3 of end increase)：
| Monitor site | Sampling time | Suspension | CODcr | BOD5 | Ammonia nitrogen | Total phosphorus | Total nitrogen |
| Water inlet | First week | 125 | 200.3 | 100.5 | 30.0 | 4.88 | 50.7 |
| Water outlet | First week | 12 | 42.1 | 13.5 | 0.3 | 3.28 | 15.9 |
| Water inlet | Second week | 121 | 150.3 | 110.7 | 22.3 | 3.14 | 27.8 |
| Water outlet | Second week | 11 | 35.7 | 10.1 | 0.242 | 0.73 | 12.0 |
| Water inlet | 3rd week | 144 | 158.0 | 80.5 | 16.0 | 2.04 | 11.7 |
| Water outlet | 3rd week | 9 | ＜ 30 | 8.9 | 0.388 | 0.42 | 24.5 |
| Water inlet | 4th week | 20 | 120.6 | 98.0 | 22.2 | 2.88 | 10.5 |
| Water outlet | 4th week | 8 | ＜ 27 | 8.5 | 0.500 | 0.29 | 13.2 |
Similarly, in the case where not installing three-dimensional sustained release chemicals dosing plant, even if can be seen that by the experiment of one month
In the case where intaking in the presence of fluctuation, sewage disposal can reach《Urban wastewater treatment firm pollutant emission standard》GB19819-
2002 one-level B standard, third and fourth week can reach one-level A requirement, and especially control of the system to total nitrogen and total phosphorus is preferable.
Illustrate a kind of efficient denitrification, the multifunctional ecological greenery patches system of dephosphorization has actual application value.
Embodiment three
Difference with embodiment two is that the three-dimensional sustained release device of chemical feed pipe 3 of leading portion regulating reservoir 1 and end has setting, and often
Layer Wetland Substrate medium size composition building form be：
| Wetland Substrate | Dielectric material |
| Water distribution layer 16 | 4mm cobblestones：4mm melon seeds piece=2:1, laying height is 120mm |
| Root layer 15 | The thin cobblestones of 5mm：40 mesh engineering sand=49:51, laying height is 100mm |
| Microorganism grown layer 14 | 40 mesh engineering sands, laying height is 400mm |
| Adsorption layer 13 | 5mm vermiculites：5mm zeolite=1:2, laying height is 250mm |
| Cushion 12 | 15mm melon seeds pieces：Thin cobblestone=2 of 25mm:1, laying height is 150mm |
| Collect water layer 11 | 20mm cobblestones：30mm stone=1:1, laying height is 150mm |
Structure by ecological green land sewage disposal system and the experimental result after the processing of sewage it is following (this result be
The three-dimensional sustained release device of chemical feed pipe 3 of end increase, the sustained release dephosphorization agent and disinfectant in it in dosing rod 21 of setting are according to 1:9 ratios
Example mixing, dosage are 3ppm experimental result)：
| Monitor site | Sampling time | Suspension | CODcr | BOD5 | Ammonia nitrogen | Total phosphorus | Total nitrogen |
| Water inlet | First week | 120 | 300.3 | 200.5 | 40.0 | 4.88 | 50.7 |
| Water outlet | First week | 10 | 32.2 | 13.5 | 10 | 2.38 | 25.6 |
| Water inlet | Second week | 131 | 150.3 | 110.7 | 22.3 | 3.14 | 27.8 |
| Water outlet | Second week | 10 | 35.7 | 10.1 | 0.242 | 0.73 | 12.0 |
| Water inlet | 3rd week | 124 | 158.0 | 80.5 | 16.0 | 2.04 | 11.7 |
| Water outlet | 3rd week | 8 | ＜ 25 | 9.8 | 0.25 | 0.32 | 21.5 |
| Water inlet | 4th week | 20 | 120.6 | 98.0 | 22.2 | 2.88 | 10.5 |
| Water outlet | 4th week | 9 | ＜ 33 | 6.5 | 0.300 | 0.45 | 15.2 |
Similarly, in the case of the three-dimensional sustained release chemicals dosing plant of installation, by the experiment of one month can be seen that even in
In the case that water inlet has fluctuation, sewage disposal can reach《Urban wastewater treatment firm pollutant emission standard》GB19819-
2002 one-level B standard, third and fourth week can reach one-level A requirement, and especially control of the system to total nitrogen and total phosphorus is preferable.
Illustrate a kind of efficient denitrification, the multifunctional ecological greenery patches system of dephosphorization has actual application value.
Claims (7)
- A kind of 1. ecological green land sewage disposal system, it is characterised in that：Including the regulating reservoir (1) sequentially connected, ecological green land pond (2) and solid is sustained chemical feed pipe (3), wherein：The regulating reservoir (1), includes sewage input port (4) and sewage delivery outlet, and the regulating reservoir (1) is at least divided into one For filtering the chamber of suspension and fine sand grain, and in the sewage delivery outlet of regulating reservoir (1), the oriented ecological green land is set The submersible sewage pump (25) of pond (2) water distribution；The ecological green land pond (2), for removing the organic matter in sewage, ammonia nitrogen and phosphorus, include the cloth of connection regulating reservoir (1) Water system (8), wetland plant (9), Wetland Substrate and captation, wherein, the Wetland Substrate is respectively to catchment from bottom to up Layer (11), cushion (12), adsorption layer (13), microorganism grown layer (14), root layer (15), water distribution layer (16), the water distribution layer (16) water distribution system (8) is evenly distributed with and is planted the wetland plant (9), and the captation is then arranged on institute State in collection water layer (11)；The collection water layer (11) is using big cobblestone and stone according to 1:2、1:1 or 2:1 ratio uniform is laid on described On captation, laying height is 50~200mm, wherein, the particle diameter of cobblestone and stone is respectively 5~25mm, 10~30mm；The cushion (12) is using melon seeds piece and thin cobblestone according to 1:1、1:2 or 2:1 ratio uniform, which is laid on, to catchment Laying height is 50~150mm on layer (11), wherein, the particle diameter of melon seeds piece and thin cobblestone be respectively 3~20mm, 3~ 25mm；The adsorption layer (13) to total phosphorus using can have vermiculite that good adsorption acts on, can efficiently adsorb conversion ammonia nitrogen and total The zeolite or ceramic filter material of nitrogen, vermiculite is with zeolite or vermiculite with ceramic filter material according to 1:1、1:2、2:1、3:1 ratio is equal Even to be laid on cushion (12), laying height is 200~300mm, wherein, vermiculite particle diameter is 3~10mm, ceramic filter material and boiling The particle diameter of stone is respectively 1~5mm and 1~5mm；The microorganism grown layer (14) is formed using the laying of 30~60 mesh engineering sands, and laying height is 300~500mm, interior Portion sets biological membrane assembly (17), and the biological membrane assembly (17) is made up of biofilm filler and filler support, wherein, the filler Support uses rectangular frame made of reinforcing bar, and every 0.2~0.8m in the framework2A biofilm is laid in unit area to fill out Material, and the biofilm filler includes 3 D elastic filler or combined stuffing, wherein, the 3 D elastic filler is by being broken Strength collectively forms for the strand and axial cord of >=71dan and tensile strength >=15, and combined stuffing is φ 150 by specification ~200*100mm fibre bundle, plastic sheet, sleeve pipe, axial cord composition；Described root layer (15) uses that thin cobblestone particle diameter is 3~25mm and 40 mesh engineering sands use 49:51 ratio is carried out It is well mixed to be laid on microorganism grown layer (14), 100~150mm of laying height；The water distribution layer (16), for burying water distributor to protect water distributor not to be destroyed, using cobblestone and melon seeds piece according to Ratio is 1:2、1:1 or 2:1 ratio laying, the particle diameter of its cobble are 3~20mm, 3~25mm of particle diameter of melon seeds piece, Laying height is 100~150mm；Dosing rod (21) containing sustained release dephosphorization agent and disinfectant in the three-dimensional sustained release chemical feed pipe (3), in the adjusted pond of sewage (1) in the state of, submersible sewage pump (25) and water distribution system (8) are flowed into the ecological green land pond (2), ecological green land pond can be passed through (2) after the processing of micro-ecological environment that wetland plant (9) and Wetland Substrate is built jointly, most afterwards through the captation flow out into Enter three-dimensional sustained release chemical feed pipe (3) to be handled.
- 2. ecological green land sewage disposal system according to claim 1, it is characterised in that：In the regulating reservoir (1) successively Thick bar grating (5), slice grid (6) and partition wall (7) are provided with, wherein, the bottom of the partition wall (7) has and can prevent from hanging The through hole (26) that float and fine sand grain pass through, and at the 2/3 of regulating reservoir (1), regulating reservoir (1) is divided into volume ratio is 2：1 first chamber and second chamber, the thick bar grating (5) and slice grid (6) may be contained within first chamber, described thick The grizzly bar spacing of bar grating (5) is 4~10mm and is located at the 1/2 of first chamber that the grizzly bar spacing of the slice grid (6) is 2~6mm is simultaneously located at the 3/4 of first chamber, and the submersible sewage pump (25) is then arranged in second chamber.
- 3. ecological green land sewage disposal system according to claim 1, it is characterised in that：The collection water layer (11) is using big Cobblestone and stone are according to 1:2 ratio uniform is laid on the captation, and laying height is 50mm, wherein, goose ovum The particle diameter of stone and stone is respectively 5mm, 10mm；The cushion (12) is using melon seeds piece and thin cobblestone according to 1:1 ratio uniform is laid on the upper berth of collection water layer (11) If being highly 100mm, wherein, the particle diameter of melon seeds piece and thin cobblestone is 10mm, 10mm respectively；The adsorption layer (13) to total phosphorus using can have vermiculite that good adsorption acts on, can efficiently adsorb conversion ammonia nitrogen and total The vermiculite of nitrogen is with zeolite according to 1:2 ratio uniform is laid on cushion (12), and laying height is 200mm, wherein, vermiculite grain Footpath is 10mm, and the particle diameter of zeolite is 5mm；The microorganism grown layer (14) is formed using the laying of 30 mesh engineering sands, and laying height is 400mm, and inside sets biology Membrane module (17), the biological membrane assembly (17) are made up of biofilm filler and filler support, wherein, the filler support uses steel Rectangular frame made of muscle, and per 0.5m in the framework2One biofilm filler of laying in unit area, and the biofilm filler Include 3 D elastic filler or combined stuffing, wherein, the 3 D elastic filler is >=71dan and drawing by ultimate strength The strand and axial cord for stretching intensity >=15 collectively form, and combined stuffing is by fiber that specification is 150~200*100mm of φ Beam, plastic sheet, sleeve pipe, axial cord composition；Described root layer (15) uses that thin cobblestone particle diameter is 5mm and 40 mesh engineering sands use 49:51 ratio is mixed Uniformly it is laid on microorganism grown layer (14), laying height 100mm；The water distribution layer (16), for burying water distributor to protect water distributor not to be destroyed, using cobblestone and melon seeds piece according to Ratio is 1:2 ratio laying, the particle diameter of its cobble is 3mm, and the particle diameter of melon seeds piece is 3mm, and laying height is 100mm.
- 4. ecological green land sewage disposal system according to claim 1, it is characterised in that：Water distribution system (8) supervisor Using pvc pipe, caliber is 25~80mm, is uniformly distributed by 200~1000mm distance and shallow embedding is in water distribution layer (16), every Supervisor sets a cloth water distributor (10) at a distance of 200~800mm, and the cloth water distributor (10) uses turning spurt water device, naked 30~50mm in water distribution layer (16) is exposed at, is uniformly sprinkled water to surrounding.
- 5. ecological green land sewage disposal system according to claim 1, it is characterised in that：The wetland plant (9) can be with It is that one or more of wetland plant (9) plantations form in canna, reed, calamus, cyperus alternifolius, iris, rush and wild rice stem, plants Kind standoff distance is 150~300mm.
- 6. ecological green land sewage disposal system according to claim 1, it is characterised in that：The three-dimensional sustained release chemicals dosing plant Discharge outlet (22) is provided with outside, the sustained release dephosphorization agent and disinfectant in the dosing rod (21) set in it are according to 1:9~9:1 ratio Mixing, dosage is 1~3ppm.
- A kind of 7. processing side of ecological green land sewage disposal system according to claim 1~6 any one claim Method, it is characterised in that：Step is as follows：(1) intercept process of the sewage through the regulating reservoir (1), suspension and fine sand grain big in sewage can be intercepted：(2) sewage after step (1) intercept process enters the ecological green land pond (2) through the water distribution system (8), and sewage is certainly The water distribution layer (16) set in ecological green land pond (2) is passed sequentially through under above, root layer (15), microorganism grown layer (14), inhales Attached layer (13), cushion (12) and collection water layer (11) enter captation：(3) catchment, the clear water of ecological green land pond (2) bottom flows into the three-dimensional sustained release chemical feed pipe (3) through the captation；(4) clear water is exported, is discharged by the three-dimensional chemical feed pipe (3) that is sustained.
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| CN105645699A (en) * | 2016-04-07 | 2016-06-08 | 成都赋阳技术开发有限公司 | Sewage purification treatment device |
| CN105858907B (en) * | 2016-06-27 | 2018-08-24 | 贵州一道环境建设有限公司 | A kind of artificial swamp and processing method of processing family domestic sewage |
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| CN109626701A (en) * | 2017-10-09 | 2019-04-16 | 天津职业技术师范大学 | Full-automatic sewage processing unit monitoring system |
| CN110028172A (en) * | 2019-04-15 | 2019-07-19 | 北京中通建科节能环保技术研究院有限公司 | A kind of zero energy consumption sewage disposal system |
| CN110219615B (en) * | 2019-05-31 | 2021-11-05 | 山东科技大学 | Coal seam pulsating water injection drilling hole sealing device and hole sealing method |
| CN111574000A (en) * | 2020-06-17 | 2020-08-25 | 广西金妙松环保工程有限公司 | Hydraulic ecological purification system |
| CN113264641A (en) * | 2021-05-27 | 2021-08-17 | 江苏海绵城市技术研究院有限公司 | Multistage ecological wetland high-efficiency purification system |
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