CN107140738A - Nitrogen phosphor resource safe utilization device and its application in domestic sewage in rural areas - Google Patents
Nitrogen phosphor resource safe utilization device and its application in domestic sewage in rural areas Download PDFInfo
- Publication number
- CN107140738A CN107140738A CN201710269859.6A CN201710269859A CN107140738A CN 107140738 A CN107140738 A CN 107140738A CN 201710269859 A CN201710269859 A CN 201710269859A CN 107140738 A CN107140738 A CN 107140738A
- Authority
- CN
- China
- Prior art keywords
- water
- wet land
- artificial wet
- flow artificial
- drowned flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G31/00—Soilless cultivation, e.g. hydroponics
- A01G31/02—Special apparatus therefor
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Botany (AREA)
- Biotechnology (AREA)
- Environmental Sciences (AREA)
- Hydroponics (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
Nitrogen phosphor resource safe utilization device and its application in a kind of domestic sewage in rural areas, belong to environmental project technical field of sewage.Described device from left to right includes biofilter, preposition drowned flow artificial wet land, vegetable aquaculture system and rearmounted drowned flow artificial wet land successively, sanitary sewage water inlet is provided with the left of the bottom of the biofilter, the preposition drowned flow artificial wet land includes plant, fine sand layer, coarse sands layer and gravel layer successively from top to bottom；The vegetable aquaculture system includes water planting bed, water plant and field planting plate；The rearmounted drowned flow artificial wet land is sequentially provided with vegetables or landscape plant, soil horizon, fine sand layer, coarse sands layer and gravel and broken air-entrained concrete building block mixed layer from top to bottom, and bottom is provided with discharge outlet.Biology is filtered out technology, drowned flow artificial wet land technology and vegetable aquaculture planting technology and organically combined by the present invention, while ensureing that standard water discharge is discharged to sewage in the nutrient such as nitrogen phosphorus effectively utilize, a large amount of output oenanthe stoloniferas and water spinach.
Description
Technical field
The invention belongs to environmental project technical field of sewage, and in particular to nitrogen phosphor resource in a kind of domestic sewage in rural areas
Change safe utilization device and its application.
Background technology
At present, the pollution of China's town domestic sewage has been substantially achieved control, but raising with living standards of the people and
The development of urban-rural integration, the water pollution situation of rural area is increasingly severe.Simultaneously as China rural area is traditionally dirty to water
The cognition degree for contaminating improvement is relatively low, and the draining custom and improvement one-house show, supporting pipeline network construction formed for a long time is lacked, operational management
The relatively low reason of level so that domestic sewage in rural areas difficulty of governance is very big, a large amount of undressed domestic sewage in rural areas with
Meaning discharge, as one of China river, the primary pollution source in lake, such as TAI HU AREA mainly enters in the pollutant of lake, 25.1%
Nitrogen, 60% phosphorus source are in domestic sewage in rural areas.The discharge of sanitary sewage destroys Ecological Environment, hinders rural economy society
The sustainable development of meeting, therefore in the urgent need to handling domestic sewage in rural areas.
On the other hand, concentration of nitrogen and phosphorus is still higher in the domestic sewage in rural areas tail water after biological treatment, such as Jiangsu and Zhejiang Provinces area
TN concentration is 10 ~ 30 mg/L, and TP concentration is 2 ~ 5 mg/L, and tail water is directly discharged into water body, will polluted-water.Every year through sewage
The a large amount of nitrogen phosphorus for discharging and being lost in are nutriments necessary to agricultural production, therefore should carry out the recycling of domestic sewage in rural areas
Utilize, to promote the Sustainable Treatment of country sewage.
Further, since the medicine such as antibiotic and its intermediates that may be containing residual in sanitary sewage, micro disappearing
Harmful micro quantity organic pollutant such as toxic byproduct, cosmetics, or even may be polluted in drainage procedure by heavy metal etc., such as will
Sanitary sewage, or sanitary sewage after biological treatment are directly used in micro quantity organic pollutant, the heavy metal in vegetable irrigation, water
Etc. will be enriched with vegetables, so as to cause vegetables quality not meet relevant criterion.Therefore, recycling profit is being carried out to country sewage
During, rational Land use systems should be used, the dirt such as micro-content organism that may be present, heavy metal in sewage is removed in advance
Thing is contaminated, the safe utilization of nitrogen phosphor resource in sewage is realized.
The content of the invention
The technical problem of solution：For it is above-mentioned because sewage discharge and caused by the phenomenon that is lost in of a large amount of nitrogen P elements, the present invention
Nitrogen phosphor resource safe utilization device and its application in a kind of domestic sewage in rural areas are provided, can realize what sewage was effectively purified
The recycling of nitrogen phosphorus is realized simultaneously, and obtains certain economic well-being of workers and staff.
Technical scheme：Nitrogen phosphor resource safe utilization device in a kind of domestic sewage in rural areas, described device from left to right according to
It is secondary including biofilter, preposition drowned flow artificial wet land, vegetable aquaculture system and rearmounted drowned flow artificial wet land, the biofilter
Bottom side is provided with sanitary sewage water inlet, the bottom of the bottom opposite side of the biofilter and the preposition drowned flow artificial wet land
End connects, and the preposition drowned flow artificial wet land includes plant, fine sand layer, coarse sands layer and gravel layer successively from top to bottom；The water
The top side of training Vegetable System connects with the top of preposition drowned flow artificial wet land, the vegetable aquaculture system include water planting bed,
Water plant and field planting plate, the field planting plate enter water planting bed located at water planting bed top, the root of water plant through field planting plate；
The top of the rearmounted drowned flow artificial wet land connects with the top opposite side of vegetable aquaculture system, the rearmounted drowned flow artificial wet land
Vegetables or landscape plant, soil horizon, fine sand layer, coarse sands layer and gravel and broken air-entrained concrete building block are sequentially provided with from top to bottom
Mixed layer, the rearmounted drowned flow artificial wet land is additionally provided with discharge outlet, and the discharge outlet is built located at gravel with broken air entrained concrete
The bottom of block mixed layer, the right side of rearmounted drowned flow artificial wet land.
Preferably, the thickness of the fine sand layer is 15 ~ 20 cm, fine sand particle diameter is 2 ~ 4 mm；The thickness of the coarse sands layer
For 15 ~ 20 cm, particle diameter is 4 ~ 8 mm；The thickness of gravel layer is 20 ~ 25 cm, and particle diameter is 8 ~ 12 mm.
Preferably, the plant is the one or more in Siberian iris, canna, Eichhornia crassipes and wild rice stem.
Preferably, the available depth of water planting bed is 10 ~ 15 cm, superelevation in the vegetable aquaculture system（Pool wall Gao Yushui
The high difference in face）For 5 ~ 10 cm, any matrix is not filled with.
Preferably, the water plant is distinguished by season, water spinach is planted April summer and autumn ~ October, winter 11,12 in spring
Month and 1,2, plant Chinese celery March, planting density is 100 ~ 150 plants/m2, the 1/4 of the water plant planting area is gathered in every time.
Preferably, the thickness of the soil horizon is 15 ~ 20 cm；Gravel and broken air-entrained concrete building block mixed layer
Thickness is 15 ~ 20 cm, and particle diameter is 8 ~ 16 mm.
Application based on described device in domestic sewage in rural areas in nitrogen phosphor resource safe utilization.
Further, the application comprises the following steps：
After step one, domestic sewage in rural areas is collected through pipe network, a point cycle is pre-processed into biofilter, and the water distribution cycle is 20
~ 25 min, the water distribution time is 3.5 ~ 4.5min, and hydraulic load is 6 ~ 7.2 m3/(m2·d)；
The pretreated tail water of step 2 flows into preposition drowned flow artificial wet land from bottom, and hydraulic detention time is 40 ~ 48 h；
The water outlet on the preposition drowned flow artificial wet land tops of step 3 flows into vegetable aquaculture system, and hydraulic detention time is 10 ~ 15 h；
The top that the water outlet of step 4 vegetable aquaculture systems flows into the rearmounted drowned flow artificial wet land is purified again, waterpower
Residence time is the delivery port outflow after 40 ~ 48 h from the rearmounted drowned flow artificial wet land bottom.
Preferably, in the step one the water distribution cycle be 20 min, the water distribution time be 4 min, hydraulic load is 6.6
m3/(m2·d)。
Preferably, hydraulic detention time is 40 h in the step 2；Hydraulic detention time is 12 in the step 3
h；The step 4 hydraulic detention time is 40 h.
Beneficial effect：Compared with prior art, nitrogen phosphor resourceization safety profit in domestic sewage in rural areas provided by the present invention
With device and its application, biofilter technology, Artificial Wetland Techniques and vegetable aquaculture systems technology are organically combined, each unit work(
Energy Clear partition, stable and reliable operation, specific effect is as follows：
1st, with higher denitrogenation dephosphorizing efficiency；
2nd, construction cost and operating cost are low, it is easy to safeguard；
3rd, waste water control and agricultural production are organically combined, not only realizes effective purification of sewage, and realize in sewage
Nitrogen phosphor resourceization utilize；
4th, while ensureing that water outlet reaches one-level A standards, the nontoxic oenanthe stolonifera of a large amount of outputs and water spinach, not only effectively
The nutrients such as nitrogen phosphorus in sewage are make use of, and bring considerable economic benefit.
Brief description of the drawings
Fig. 1 is present invention process flow chart；
Fig. 2 is apparatus structure schematic diagram of the present invention.
In figure：1. biofilter；2. preposition drowned flow artificial wet land；3. vegetable aquaculture system；4. rearmounted drowned flow artificial wet land；
5. life tail water water inlet；6. fine sand layer；7. coarse sands layer；8. gravel layer；9. plant；10. water plant；11. it is colonized plate；12.
Water planting bed；13. soil horizon；14. gravel and broken air-entrained concrete building block mixed layer；15. vegetables or landscape plant；16. draining
Mouthful.
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, and embodiment gives detailed embodiment party
Formula and specific operating process, but the present invention is not limited to following examples.
Embodiment 1
Nitrogen phosphor resource safe utilization device in a kind of domestic sewage in rural areas, referring to Figures 1 and 2, described device from left to right according to
It is secondary including biofilter 1, preposition drowned flow artificial wet land 2, vegetable aquaculture system 3 and rearmounted drowned flow artificial wet land 4, the biological filter
The bottom side in pond 1 is provided with sanitary sewage water inlet 5, the bottom opposite side of the biofilter 1 and the preposition drowned flow artificial
The bottom of wetland 2 connects.
The preposition drowned flow artificial wet land 2 includes plant 9, fine sand layer 6, coarse sands layer 7 and gravel layer 8 successively from top to bottom.
The plant 9 is canna, and the thickness of the fine sand layer 6 is 15 cm, and fine sand particle diameter is 2 ~ 4 mm.The thickness of the coarse sands layer 7
For 15 cm, particle diameter is 4 ~ 8mm.The thickness of the gravel layer 8 is 20 cm, and particle diameter is 8 ~ 12 mm.
The top side of the vegetable aquaculture system 3 connects with the top of preposition drowned flow artificial wet land 2, the vegetable aquaculture
The top side of system 3 connects with the top of preposition drowned flow artificial wet land 2, and the vegetable aquaculture system 3 includes water planting bed 12, water
Plant 10 and field planting plate 11, the available depth of the water planting bed 12 is 10 cm, superelevation（Pool wall height and the high difference of the water surface）For
5 cm, are not filled with any matrix.The field planting plate 11 passes through field planting plate 11 located at 12 tops of water planting bed, the root of water plant 10
Into water planting bed 12.The water plant 10 is distinguished by season, plants water spinach April summer and autumn ~ October, winter 11 in spring, December
And 1,2, plant Chinese celery March, planting density is 100 plants/m2, the 1/4 of the cultivated area of water plant 10 is gathered in every time.
The top of the rearmounted drowned flow artificial wet land 4 connects with the top opposite side of vegetable aquaculture system 3, described rearmounted latent
Artificial wetland 4 be sequentially provided with from top to bottom vegetables and landscape plant 15, soil horizon 13, fine sand layer 6, coarse sands layer 7 and gravel with
Broken air-entrained concrete building block mixed layer 14, the thickness of the soil horizon 13 is 15 cm, gravel and broken air-entrained concrete building block
The thickness of mixed layer 14 is 15 cm, and particle diameter is 8 mm.The rearmounted drowned flow artificial wet land 4 is additionally provided with discharge outlet 16, the draining
Mouth 16 is located at bottom, the right side of rearmounted drowned flow artificial wet land 4 of gravel and broken air-entrained concrete building block mixed layer 14.
The application of nitrogen phosphor resource safe utilization device, comprises the following steps in a kind of domestic sewage in rural areas：
After step one, domestic sewage in rural areas is collected through pipe network, point cycle is pre-processed into biofilter 1, and the water distribution cycle is
20 min, the water distribution time is 3.5 min, and hydraulic load is 6 m3/(m2D), removed by the effect such as microbial degradation in sewage
Most of organic matter and part nitrogen phosphorus.
The pretreated tail water of step 2 enters preposition drowned flow artificial wet land 2 from bottom, and hydraulic detention time is 40 h,
Tail water can make full use of the biomembrane on filler surface, abundant root system of plant and filler in wetland bed internal flow
The effect such as retention is pre-processed to tail water, and tail water is removed by absorption, filtering, precipitation, plant absorption and microbial degradation etc.
In organic matter that may be present, micro heavy and small part nitrogen phosphorus.
Tail water after step 3 is handled through preposition drowned flow artificial wet land 2 is still organic containing most of nitrogen phosphorus and part
Thing, the delivery port from the preposition top of drowned flow artificial wet land 2 is also that the water inlet of vegetable aquaculture system 3 flows into vegetable aquaculture system 3,
Hydraulic detention time is 10 h, is removed and pre-processed by approach such as the filtering of the root system of water plant 9, vegetables absorption, microbial degradations
Nitrogen phosphorus and organic matter in water, realize that nitrogen phosphor resourceization is utilized, while output vegetables, obtain economic well-being of workers and staff, will in sewage discharge
Not high region is asked, the water outlet of vegetable aquaculture system can be discharged directly.
Only have small part nitrogen phosphorus and organic matter in the water outlet of step 4 vegetable aquacultures system 3, finally enter rearmounted undercurrent
The top of artificial swamp 4 is purified again, and hydraulic detention time is 40 h, and wet land filler and wetland plant are to remaining in water
Polluter is purified again, serves the effect of checking on, it is ensured that excellent effluent quality, so that water outlet reaches one-level A standards,
Water outlet is flowed out from the delivery port 16 of the rearmounted bottom of drowned flow artificial wet land 4.
Embodiment 2
Nitrogen phosphor resource safe utilization device in a kind of domestic sewage in rural areas, referring to Figures 1 and 2, described device from left to right according to
It is secondary including biofilter 1, preposition drowned flow artificial wet land 2, vegetable aquaculture system 3 and rearmounted drowned flow artificial wet land 4, the biological filter
The bottom side in pond 1 is provided with sanitary sewage water inlet 5, the bottom opposite side of the biofilter 1 and the preposition drowned flow artificial
The bottom of wetland 2 connects.
The preposition drowned flow artificial wet land 2 includes plant 9, fine sand layer 6, coarse sands layer 7 and gravel layer 8 successively from top to bottom.
The plant 9 is Eichhornia crassipes, and the thickness of the fine sand layer 6 is 20 cm, and fine sand particle diameter is 2 ~ 4 mm.The thickness of the coarse sands layer 7
For 20 cm, particle diameter is 4 ~ 8 mm.The thickness of the gravel layer 8 is 25 cm, and particle diameter is 8 ~ 12 mm.
The top side of the vegetable aquaculture system 3 connects with the top of preposition drowned flow artificial wet land 2, the vegetable aquaculture
The top side of system 3 connects with the top of preposition drowned flow artificial wet land 2, and the vegetable aquaculture system 3 includes water planting bed 12, water
Plant 10 and field planting plate 11, the available depth of the water planting bed 12 is 15cm, and pool wall height is 10 cm with the high difference of the water surface,
It is not filled with any matrix.The field planting plate 11 enters located at 12 tops of water planting bed, the root of water plant 10 through field planting plate 11
Water planting bed 12.The water plant 10 is distinguished by season, plants water spinach April summer and autumn ~ October, winter 11 in spring, December and 1,
2nd, Chinese celery is planted March, planting density is 150 plants/m2, the 1/4 of the cultivated area of water plant 10 is gathered in every time.
The top of the rearmounted drowned flow artificial wet land 4 connects with the top opposite side of vegetable aquaculture system 3, described rearmounted latent
Artificial wetland 4 be sequentially provided with from top to bottom vegetables and landscape plant 15, soil horizon 13, fine sand layer 6, coarse sands layer 7 and gravel with
Broken air-entrained concrete building block mixed layer 14, the thickness of the soil horizon 13 is 20 cm, gravel and broken air-entrained concrete building block
The thickness of mixed layer 14 is 20 cm, and particle diameter is 16 mm.The rearmounted drowned flow artificial wet land 4 is additionally provided with discharge outlet 16, the row
The mouth of a river 16 is located at bottom, the right side of rearmounted drowned flow artificial wet land 4 of gravel and broken air-entrained concrete building block mixed layer 14.
The application of nitrogen phosphor resource safe utilization device, comprises the following steps in a kind of domestic sewage in rural areas：
After step one, domestic sewage in rural areas is collected through pipe network, point cycle is pre-processed into biofilter 1, and the water distribution cycle is
25min, the water distribution time is 4.5min, and hydraulic load is 7.2 m3/(m2D), removed by the effect such as microbial degradation in sewage
Most of organic matter and part nitrogen phosphorus.
The pretreated tail water of step 2 enters preposition drowned flow artificial wet land 2 from bottom, and hydraulic detention time is 48 h,
Tail water can make full use of the biomembrane on filler surface, abundant root system of plant and filler in wetland bed internal flow
The effect such as retention is pre-processed to tail water, and tail water is removed by absorption, filtering, precipitation, plant absorption and microbial degradation etc.
In organic matter that may be present, micro heavy and small part nitrogen phosphorus.
Tail water after step 3 is handled through preposition drowned flow artificial wet land 2 is still organic containing most of nitrogen phosphorus and part
Thing, the delivery port from the preposition top of drowned flow artificial wet land 2 is also that the water inlet of vegetable aquaculture system 3 flows into vegetable aquaculture system 3,
Hydraulic detention time is 15 h, is removed and pre-processed by approach such as the filtering of the root system of water plant 9, vegetables absorption, microbial degradations
Nitrogen phosphorus and organic matter in water, realize that nitrogen phosphor resourceization is utilized, while output vegetables, obtain economic well-being of workers and staff, will in sewage discharge
Not high region is asked, the water outlet of vegetable aquaculture system can be discharged directly.
Only have small part nitrogen phosphorus and organic matter in the water outlet of step 4 vegetable aquacultures system 3, finally enter rearmounted undercurrent
The top of artificial swamp 4 is purified again, and hydraulic detention time is 48 h, and wet land filler and wetland plant are to remaining in water
Polluter is purified again, serves the effect of checking on, it is ensured that excellent effluent quality, so that water outlet reaches one-level A standards,
Water outlet is flowed out from the delivery port 16 of the rearmounted bottom of drowned flow artificial wet land 4.
Embodiment 3
Nitrogen phosphor resource safe utilization device in a kind of domestic sewage in rural areas, referring to Figures 1 and 2, described device from left to right according to
It is secondary including biofilter 1, preposition drowned flow artificial wet land 2, vegetable aquaculture system 3 and rearmounted drowned flow artificial wet land 4, the biological filter
The bottom side in pond 1 is provided with sanitary sewage water inlet 5, the bottom opposite side of the biofilter 1 and the preposition drowned flow artificial
The bottom of wetland 2 connects.
The preposition drowned flow artificial wet land 2 includes plant 9, fine sand layer 6, coarse sands layer 7 and gravel layer 8 successively from top to bottom.
The plant 9 is wild rice stem, and the thickness of the fine sand layer 6 is 15 cm, and fine sand particle diameter is 2 ~ 4 mm.The thickness of the coarse sands layer 7 is
15 cm, particle diameter is 4 ~ 8 mm.The thickness of the gravel layer 8 is 20 cm, and particle diameter is 8 ~ 12 mm.
The top side of the vegetable aquaculture system 3 connects with the top of preposition drowned flow artificial wet land 2, the vegetable aquaculture
The top side of system 3 connects with the top of preposition drowned flow artificial wet land 2, and the vegetable aquaculture system 3 includes water planting bed 12, water
Plant 10 and field planting plate 11, the available depth of the water planting bed 12 is 10 cm, and pool wall height is 10 cm with the high difference of the water surface,
It is not filled with any matrix.The field planting plate 11 enters located at 12 tops of water planting bed, the root of water plant 10 through field planting plate 11
Water planting bed 12.The water plant 10 is distinguished by season, plants water spinach April summer and autumn ~ October, winter 11 in spring, December and 1,
2nd, Chinese celery is planted March, planting density is 100 ~ 150 plants/m2, the 1/4 of the cultivated area of water plant 10 is gathered in every time.
The top of the rearmounted drowned flow artificial wet land 4 connects with the top opposite side of vegetable aquaculture system 3, described rearmounted latent
Artificial wetland 4 be sequentially provided with from top to bottom vegetables and landscape plant 15, soil horizon 13, fine sand layer 6, coarse sands layer 7 and gravel with
Broken air-entrained concrete building block mixed layer 14, the thickness of the soil horizon 13 is 20 cm, gravel and broken air-entrained concrete building block
The thickness of mixed layer 14 is 20 cm, and particle diameter is 8 ~ 16 mm.The rearmounted drowned flow artificial wet land 4 is additionally provided with discharge outlet 16, described
Discharge outlet 16 is located at bottom, the right side of rearmounted drowned flow artificial wet land 4 of gravel and broken air-entrained concrete building block mixed layer 14.
The application of nitrogen phosphor resource safe utilization device, comprises the following steps in a kind of domestic sewage in rural areas：
After step one, domestic sewage in rural areas is collected through pipe network, point cycle is pre-processed into biofilter 1, and the water distribution cycle is
20min, the water distribution time is 4 min, and hydraulic load is 6.6 m3/(m2D), removed by the effect such as microbial degradation in sewage
Most of organic matter and part nitrogen phosphorus.
The pretreated tail water of step 2 enters preposition drowned flow artificial wet land 2 from bottom, and hydraulic detention time is 40 h,
Tail water can make full use of the biomembrane on filler surface, abundant root system of plant and filler in wetland bed internal flow
The effect such as retention is pre-processed to tail water, and tail water is removed by absorption, filtering, precipitation, plant absorption and microbial degradation etc.
In organic matter that may be present, micro heavy and small part nitrogen phosphorus.
Tail water after step 3 is handled through preposition drowned flow artificial wet land 2 is still organic containing most of nitrogen phosphorus and part
Thing, the delivery port from the preposition top of drowned flow artificial wet land 2 is also that the water inlet of vegetable aquaculture system 3 flows into vegetable aquaculture system 3,
Hydraulic detention time is 12 h, is removed and pre-processed by approach such as the filtering of the root system of water plant 9, vegetables absorption, microbial degradations
Nitrogen phosphorus and organic matter in water, realize that nitrogen phosphor resourceization is utilized, while output vegetables, obtain economic well-being of workers and staff, will in sewage discharge
Not high region is asked, the water outlet of vegetable aquaculture system can be discharged directly.
Only have small part nitrogen phosphorus and organic matter in the water outlet of step 4 vegetable aquacultures system 3, finally enter rearmounted undercurrent
The top of artificial swamp 4 is purified again, and hydraulic detention time is 40 h, and wet land filler and wetland plant are to remaining in water
Polluter is purified again, serves the effect of checking on, it is ensured that excellent effluent quality, so that water outlet reaches one-level A standards,
Water outlet is flowed out from the delivery port 16 of the rearmounted bottom of drowned flow artificial wet land 4.
Embodiment 4
Certain domestic sewage in rural areas COD concentration is 200 ~ 300 mg/L, and TN concentration is 20 ~ 30 mg/L, and ammonia nitrogen concentration is 15 ~ 25
Mg/L, TP concentration are 2 ~ 4 mg/L, using nitrogen phosphor resource safe utilization device in the domestic sewage in rural areas described in embodiment 3.
Domestic sewage in rural areas initially enters biofilter 1 and pre-processed, and the sewage treated through biofilter 1 is by intaking
Mouth enters preposition drowned flow artificial wet land 2, and the residence time is 40 h；Through the pretreated sanitary sewage of preposition drowned flow artificial wet land 2
Into vegetable aquaculture system 3, the residence time is 12 h；After being handled through vegetable aquaculture system 3, containing a small amount of nitrogen phosphorus and organic matter
Tail water enters rearmounted drowned flow artificial wet land 4, and the residence time is 40 h.
Biofilter uses periodicity water intake mode, and its water distribution cycle is 20 min, and the water distribution time takes 4 min, water
Power load takes 6.6 m3/(m2•d)；Preposition drowned flow artificial wet land size is the m of the m of 1.4 m × 0.2 × 0.7, and available depth is 0.55
M, the plant of wetland plantation is Siberian iris.Vegetable aquaculture system dimension is 2.6m × 0.2m × 0.2m, and available depth is
0.1m, rearmounted drowned flow artificial wet land size is 1.4m × 0.2m × 0.7m, and available depth is 0.55m, and the plant of wetland plantation is same
Sample is Siberian iris.
In addition, vegetable aquaculture system 3 is not filled with any matrix, by season planting aquatic plants, summer and autumn（April-October）
Plant water spinach, winter in spring（11st, December and 1,2, March）Chinese celery is planted, planting density is 100 ~ 150 plants/m2.Aquatic vegetable is adopted
Gathered in 1/4 harvesting mode, the harvesting cycle is monthly.
Monitoring Data shows, is 40 ~ 60mg/ through COD concentration in the pretreated domestic sewage in rural areas tail water in biofilter
L, TN concentration are 10 ~ 20mg/L, and ammonia nitrogen concentration is 5 ~ 10mg/L, and TP concentration is 1 ~ 3mg/L, and eliminate has into the major part in water
Machine thing and part nitrogen phosphorus；After tail water is handled through preposition drowned flow artificial wet land, the indices into the water inlet of vegetable aquaculture system
Content be below standard value（With reference to agricultural irrigation water standard）, therefore pretreated water can give birth to as vegetables in vegetable aquaculture system
Long nutrient solution.
Domestic sewage in rural areas by device of the present invention processing after discharge, after processing the COD concentration of water body be 25 ~
35mg/L, TN concentration are 5 ~ 10mg/L, and ammonia nitrogen concentration is 0.5 ~ 2.5mg/L, and TP concentration is 0.2 ~ 0.5mg/L, and treatment effect is steady
It is calmly good.Meanwhile, reference《Jiangsu Provincial Agricultural Office matter { 2013 } 17, DZ/T 0064-1993》, in vegetable aquaculture system
Oenanthe stolonifera and water spinach carry out safety evaluatio, as a result show oenanthe stolonifera, heavy metal, micro quantity organic pollutant etc. refer in water spinach
Mark meets national standard.
Compared with other traditional handicrafts, the present invention is while ensureing that water outlet reaches one-level A standards, a large amount of nontoxic nothings of output
Harmful oenanthe stolonifera and water spinach, the nutrient such as the nitrogen phosphorus being not only effectively utilized in sewage, and bring considerable warp
Ji income.
In summary, the present invention uses different process combinations, from biofilter to preposition artificial swamp to vegetable aquaculture
System arrives rearmounted artificial swamp again, has reached the purpose of nitrogen phosphor resource safe utilization in domestic sewage in rural areas.Biofilter leads to
The most of organic matter and part nitrogen phosphorus crossed in the effect removal sewage such as microbial degradation；Preposition artificial swamp by absorption,
Filtering, precipitation, plant absorption and microbial degradation etc. remove organic matter that may be present, micro heavy and small part in tail water
Nitrogen phosphorus；Vegetable aquaculture system mainly absorbs the nitrogen P elements removed in pretreated water by water plant, realizes nitrogen phosphor resource
Utilize, and the polluter such as organics removal simultaneously；Filler and plant in rearmounted drowned flow artificial wet land is to remaining dirt in water
Dye material is purified again, the effect of checking on is served, it is ensured that excellent effluent quality, so that water outlet reaches one-level A standards.Group
The Elementary Function Clear partition of conjunction technology, stable and reliable operation.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. nitrogen phosphor resource safe utilization device in a kind of domestic sewage in rural areas, it is characterised in that described device from left to right according to
It is secondary including biofilter（1）, preposition drowned flow artificial wet land（2）, vegetable aquaculture system（3）With rearmounted drowned flow artificial wet land（4）, institute
State biofilter（1）Bottom side be provided with sanitary sewage water inlet（5）, the biofilter（1）Bottom opposite side and institute
State preposition drowned flow artificial wet land（2）Bottom connect, the preposition drowned flow artificial wet land（2）Include plant successively from top to bottom
（9）, fine sand layer（6）, coarse sands layer（7）And gravel layer（8）；The vegetable aquaculture system（3）Top side and preposition undercurrent people
Work wetland（2）Top connect, the vegetable aquaculture system（3）Including water planting bed（12）, water plant（10）With field planting plate
（11）, the field planting plate（11）Located at water planting bed（12）Top, water plant（10）Root through field planting plate（11）Into water
Train bed（12）；The rearmounted drowned flow artificial wet land（4）Top and vegetable aquaculture system（3）Top opposite side connect, it is described
Rearmounted drowned flow artificial wet land（4）Vegetables or landscape plant are sequentially provided with from top to bottom（15）, soil horizon（13）, fine sand layer（6）, it is thick
Layer of sand（7）With gravel and broken air-entrained concrete building block mixed layer（14）, the rearmounted drowned flow artificial wet land（4）It is additionally provided with draining
Mouthful（16）, the discharge outlet（16）Located at gravel and broken air-entrained concrete building block mixed layer（14）Bottom, rearmounted undercurrent people
Work wetland（4）Right side.
2. nitrogen phosphor resource safe utilization device in a kind of domestic sewage in rural areas according to claim 1, it is characterised in that
The fine sand layer（6）Thickness be 15 ~ 20 cm, fine sand particle diameter be 2 ~ 4 mm；The coarse sands layer（7）Thickness be 15 ~ 20 cm,
Particle diameter is 4 ~ 8 mm；Gravel layer（8）Thickness be 20 ~ 25 cm, particle diameter be 8 ~ 12 mm.
3. nitrogen phosphor resource safe utilization device in a kind of domestic sewage in rural areas according to claim 1, it is characterised in that
The plant（9）For the one or more in Siberian iris, canna, Eichhornia crassipes and wild rice stem.
4. nitrogen phosphor resource safe utilization device in a kind of domestic sewage in rural areas according to claim 1, it is characterised in that
The vegetable aquaculture system（3）Middle water planting bed（12）Available depth be 10 ~ 15 cm, superelevation be 5 ~ 10 cm, be not filled with any
Matrix.
5. nitrogen phosphor resource safe utilization device in a kind of domestic sewage in rural areas according to claim 1, it is characterised in that
The water plant（10）Distinguished by season, plant water spinach April summer and autumn ~ October, winter 11 in spring, December and 1,2, kind in March
Chinese celery is planted, planting density is 100 ~ 150 plants/m2, the water plant is gathered in every time（10）The 1/4 of cultivated area.
6. nitrogen phosphor resource safe utilization device in a kind of domestic sewage in rural areas according to claim 1, it is characterised in that
The soil horizon（13）Thickness be 15 ~ 20 cm；Gravel and broken air-entrained concrete building block mixed layer（14）Thickness for 15 ~
20 cm, particle diameter is 8 ~ 16 mm.
7. the application based on the device described in claim 1 in domestic sewage in rural areas in nitrogen phosphor resource safe utilization.
8. according to claim 7 in domestic sewage in rural areas nitrogen phosphor resource safe utilization device application, it is characterised in that
The application comprises the following steps：
After step one, domestic sewage in rural areas is collected through pipe network, a point cycle enters biofilter（1）Pre-processed, the water distribution cycle
For 20 ~ 25 min, the water distribution time is 3.5 ~ 4.5min, and hydraulic load is 6 ~ 7.2 m3/(m2·d)；
The pretreated tail water of step 2 flows into preposition drowned flow artificial wet land from bottom（2）, hydraulic detention time is 40 ~ 48 h；
The preposition drowned flow artificial wet lands of step 3（2）The water outlet on top flows into vegetable aquaculture system（3）, hydraulic detention time be 10 ~
15h；
Step 4 vegetable aquaculture systems（3）Water outlet flow into the rearmounted drowned flow artificial wet land（4）Top carry out it is net again
Change, hydraulic detention time is from the rearmounted drowned flow artificial wet land after 40 ~ 48h（4）The delivery port of bottom（16）Outflow.
9. the application of nitrogen phosphor resource safe utilization device in domestic sewage in rural areas according to claim 8, its feature exists
In the water distribution cycle is 20 min in the step one, and the water distribution time is 4 min, and hydraulic load is 6.6 m3/(m2·d)。
10. the application of nitrogen phosphor resource safe utilization device in domestic sewage in rural areas according to claim 8, its feature exists
In hydraulic detention time is 40 h in the step 2；Hydraulic detention time is 12 h in the step 3；The step 4 water
The power residence time is 40 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710269859.6A CN107140738B (en) | 2017-04-24 | 2017-04-24 | Safe recycling device for nitrogen and phosphorus in rural domestic sewage and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710269859.6A CN107140738B (en) | 2017-04-24 | 2017-04-24 | Safe recycling device for nitrogen and phosphorus in rural domestic sewage and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107140738A true CN107140738A (en) | 2017-09-08 |
| CN107140738B CN107140738B (en) | 2020-10-23 |
Family
ID=59774870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710269859.6A Active CN107140738B (en) | 2017-04-24 | 2017-04-24 | Safe recycling device for nitrogen and phosphorus in rural domestic sewage and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107140738B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107381826A (en) * | 2017-09-19 | 2017-11-24 | 苏州市吴江区土壤肥料技术指导站 | A kind of agriculture tail water and domestic sewage in rural areas emission reduction circulation utilization method |
| CN107686167A (en) * | 2017-10-16 | 2018-02-13 | 浙江省冶金研究院有限公司 | A kind of drowned flow artificial wet land ecosystem and processing method for handling domestic sewage in rural areas |
| CN108862594A (en) * | 2017-12-13 | 2018-11-23 | 中山市和智电子科技有限公司 | It is a kind of vibration and constant temperature artificial marsh sewage treatment system |
| CN108862597A (en) * | 2017-12-13 | 2018-11-23 | 中山市和智电子科技有限公司 | A kind of heated constant temperature formula artificial marsh sewage treatment system |
| CN109526851A (en) * | 2019-01-14 | 2019-03-29 | 浙江佰瑞拉农业科技有限公司 | The controllable factory-like pearl culture system of overall process |
| CN109618907A (en) * | 2019-02-01 | 2019-04-16 | 农政齐民科技(天津)有限公司 | The dedicated seedling system of fish and vegetable symbiotic |
| CN111333267A (en) * | 2020-03-11 | 2020-06-26 | 成都工业学院 | Efficient nitrogen and phosphorus interception water purification system and water purification method in rural domestic sewage |
| CN113371927A (en) * | 2021-04-30 | 2021-09-10 | 东南大学 | Be adapted to small-size distributed rural domestic sewage's processing system |
| CN115215515A (en) * | 2022-09-19 | 2022-10-21 | 沧州佳宜洁环保科技有限公司 | Method for treating urine through vegetation autotrophy for ecological toilet |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7674378B2 (en) * | 2006-12-19 | 2010-03-09 | Modular Wetland Systems, Inc. | Wetland water treatment system |
| CN102336500A (en) * | 2011-07-28 | 2012-02-01 | 农业部规划设计研究院 | Rural domestic sewage treatment system suitable for northern part of China and technology thereof |
| CN105776556A (en) * | 2016-04-21 | 2016-07-20 | 东南大学 | Anti-clogging economic crop type filter bed-baffle subsurface flow constructed wetland enhanced nitrogen and phosphorus removal system |
-
2017
- 2017-04-24 CN CN201710269859.6A patent/CN107140738B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7674378B2 (en) * | 2006-12-19 | 2010-03-09 | Modular Wetland Systems, Inc. | Wetland water treatment system |
| CN102336500A (en) * | 2011-07-28 | 2012-02-01 | 农业部规划设计研究院 | Rural domestic sewage treatment system suitable for northern part of China and technology thereof |
| CN105776556A (en) * | 2016-04-21 | 2016-07-20 | 东南大学 | Anti-clogging economic crop type filter bed-baffle subsurface flow constructed wetland enhanced nitrogen and phosphorus removal system |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107381826A (en) * | 2017-09-19 | 2017-11-24 | 苏州市吴江区土壤肥料技术指导站 | A kind of agriculture tail water and domestic sewage in rural areas emission reduction circulation utilization method |
| CN107686167A (en) * | 2017-10-16 | 2018-02-13 | 浙江省冶金研究院有限公司 | A kind of drowned flow artificial wet land ecosystem and processing method for handling domestic sewage in rural areas |
| CN108862594A (en) * | 2017-12-13 | 2018-11-23 | 中山市和智电子科技有限公司 | It is a kind of vibration and constant temperature artificial marsh sewage treatment system |
| CN108862597A (en) * | 2017-12-13 | 2018-11-23 | 中山市和智电子科技有限公司 | A kind of heated constant temperature formula artificial marsh sewage treatment system |
| CN109526851A (en) * | 2019-01-14 | 2019-03-29 | 浙江佰瑞拉农业科技有限公司 | The controllable factory-like pearl culture system of overall process |
| CN109618907A (en) * | 2019-02-01 | 2019-04-16 | 农政齐民科技(天津)有限公司 | The dedicated seedling system of fish and vegetable symbiotic |
| CN111333267A (en) * | 2020-03-11 | 2020-06-26 | 成都工业学院 | Efficient nitrogen and phosphorus interception water purification system and water purification method in rural domestic sewage |
| CN113371927A (en) * | 2021-04-30 | 2021-09-10 | 东南大学 | Be adapted to small-size distributed rural domestic sewage's processing system |
| CN115215515A (en) * | 2022-09-19 | 2022-10-21 | 沧州佳宜洁环保科技有限公司 | Method for treating urine through vegetation autotrophy for ecological toilet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107140738B (en) | 2020-10-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107140738A (en) | Nitrogen phosphor resource safe utilization device and its application in domestic sewage in rural areas | |
| CN104230100B (en) | Three-dimensional ecological corridor system and method for in-situ restoration of river water body | |
| CN101948214B (en) | Ecological greenbelt treatment process and system for treating rural domestic sewage | |
| CN105293841B (en) | A kind of artificial swamp and filtration system combined depth handles country sewage method and device | |
| CN105236671B (en) | A kind of ecological green land sewage disposal system and its method | |
| CN207108742U (en) | A kind of livestock/poultry wastewater treatment system | |
| CN103803762B (en) | A kind of organic composite soil efficient ecological water cleaning systems | |
| CN101391841B (en) | High-load angleworm bio-filter for processing rural decentralized wastewater | |
| CN201942568U (en) | Biochemical membrane automatic aeration vertical subsurface flow constructed wetland sewage treatment device | |
| CN204185336U (en) | For the stereo ecological gallery system of river water body in-situ immobilization | |
| CN101391855B (en) | Method for treating rural disperse sewage by using high load vermibiofilter | |
| CN1951841A (en) | Agricultural ecological canal-artificial wet land water quality improvement and ecological system reconstruction method | |
| CN106365389A (en) | Artificial wetland purifying treatment system applicable to urban black and odorous river courses | |
| CN206658724U (en) | A kind of community's irrigation system | |
| CN106396118A (en) | Low-pollution closed landscape water body circulating purification system | |
| CN105601043B (en) | A kind of domestic sewage of villages and small towns ecology microkinetic processing system | |
| CN205398237U (en) | Distributed domestic sewage purification processing system | |
| CN205023952U (en) | Vertical current subsurface flow constructed wetlands | |
| CN105314797B (en) | A kind of Worm biological filter tank of sewage sludge synchronization process and its application | |
| CN112746593B (en) | Construction method of low-maintenance ecological wetland | |
| CN204509035U (en) | Complex media marsh sewage treatment system | |
| CN207645999U (en) | A kind of resident living area initial rainwater runoff intercepts, purification equipment | |
| CN204237622U (en) | A kind of horizontal subsurface flow wetland system strengthening micropollutant water denitrogenation in winter | |
| CN106380042A (en) | Circulating water purification system and method applicable to lakes | |
| CN207330637U (en) | A kind of energy-saving and environment-friendly sewage treatment unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |