CN109626583A - A kind of intensified ecological intercepting system of rice field ditch nitrogen phosphorus pollution of area source - Google Patents
A kind of intensified ecological intercepting system of rice field ditch nitrogen phosphorus pollution of area source Download PDFInfo
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- CN109626583A CN109626583A CN201811601662.9A CN201811601662A CN109626583A CN 109626583 A CN109626583 A CN 109626583A CN 201811601662 A CN201811601662 A CN 201811601662A CN 109626583 A CN109626583 A CN 109626583A
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- rice field
- water
- field ditch
- cement tub
- honeycomb
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
Abstract
The invention discloses a kind of intensified ecological intercepting systems of rice field ditch nitrogen phosphorus pollution of area source, for existing rice field nitrogen phosphorus pollution of area source problem, now propose following scheme, it includes rice field ditch, water-break runoff and honeycomb cement tub, flowing has water-break runoff in the rice field ditch, and the identical honeycomb cement tub of multiple structures is provided in rice field ditch, the rice field ditch includes water inlet, water outlet, furrow bank and bottom of trench, and honeycomb cement tub is located at the top of bottom of trench, the inside of the honeycomb cement tub is filled with the mixture of host material and functional microorganism, and the top of honeycomb cement tub is provided with opening, cultivation has water plant in the honeycomb cement tub, and the root of water plant extends to the inside of host material Yu functional microorganism mixture.The present invention can achieve the effect that highly enriched interception to rice field ditch nitrogen phosphorus pollution of area source.
Description
Technical field
The present invention relates to agricultural non-point source pollution control technology field more particularly to a kind of rice field ditch nitrogen phosphorus pollution of area source
Intensified ecological intercepting system.
Background technique
During China's Rice Production, due to blindly a large amount of application chemical fertilizer, water and fertilizer management Technical comparing backwardness etc.,
Cause chemical fertilizer utilization ratio generally low, the nitrogen phosphorus major part that chemical fertilizer loses is finally flowed by irrigating water-break and rainfall runoff
Environment water causes water eutrophication, threatens water ecological setting safety, restricts rice field agricultural sustainable development.Therefore, it solves
Certainly rice field nitrogen phosphorus pollution of area source problem is for improving water body environment quality, promoting agricultural cleaning watershed construction with highly important
Meaning.
The existing technical measures for solving rice field nitrogen phosphorus pollution of area source mainly include source abatement technology, process Interception Technology
With end circulating technology, wherein abatement technology in source is the most key, relates generally to liquid manure optimum management technology, such as side slat is applied deeply
Fertile rice transplanting integrated technique, slow-release or control-release fertilizer technology, organic fertilizer substitute technology, warehouse of vibrating water-saving technology etc., these technologies
It promotes and applies and different degrees of on source has cut down nitrogen and phosphorus loading；Process Interception Technology mainly includes ecological canal, people
The engineering ecologies class recovery technique such as work wetland, wherein ecological canal technology is since it focuses on Ecological Restoration and has both landscape effect
Benefit is concerned at present.It is built by ecological canal, the self-cleaning for restoring raising system intercepts function, can effectively reduce ditch water in a canal
Body nitrogen and phosphorus loading, removal efficiency of nitrogen and phosphorus is up to 30% level above；In order to further strengthen the purification function of irrigation canals and ditches, people are also
The reinforcing for developing irrigation canals and ditches nitrogen and phosphorus pollution intercepts slot technology, intercepts slot and is placed in irrigation canals and ditches the removal effect for strengthening nitrogen phosphorus, still
Existing this reinforcing Interception Technology is that it is net not combine integrated microorganism based on material absorption retention and plant absorption effect
Change technology, so strengthening, interception effect is limited, and irrigation canals and ditches nitrogen, tp removal rate are promoted to 40% level above, and remaining nitrogen phosphorus is still
Still there is certain optimization room for promotion in terms of constituting certain threat, technological synthesis and reinforcing interception effect to water body environment.This
Outside, as the extensive construction of ecological canal is applied, the requirement to work in maintenance management for plant harvesting and irrigation canals and ditches dredging is cured
Come higher, environmental pressure brought by the straw and bed mud waste generated therewith is increasingly severe.
So in view of the above-mentioned problems, we have proposed a kind of intensified ecologicals of rice field ditch nitrogen phosphorus pollution of area source to intercept system
System.
Summary of the invention
A kind of intensified ecological intercepting system of rice field ditch nitrogen phosphorus pollution of area source proposed by the present invention, solves existing rice
Field nitrogen phosphorus pollution of area source problem.
To achieve the goals above, present invention employs following technical solutions:
A kind of intensified ecological intercepting system of rice field ditch nitrogen phosphorus pollution of area source, including rice field ditch, water-break runoff and
Honeycomb cement tub, the rice field ditch include water inlet, water outlet, furrow bank and bottom of trench, there is flowing in the rice field ditch
Water-break runoff, and the identical honeycomb cement tub of multiple structures is provided in rice field ditch, and each honeycomb cement tub
It being respectively positioned on bottom of trench inner wall, the inside of the honeycomb cement tub is filled with the mixture of host material and functional microorganism, and
The top of honeycomb cement tub is provided with opening, and cultivation has water plant, and the root of water plant in the honeycomb cement tub
Portion extends to the inside of host material Yu functional microorganism mixture.
Preferably, the honeycomb cement tub is hollow rectangular-shape, and groove body surrounding is in that honeycomb socket bore structure is set
It sets, the width of the honeycomb cement tub is the 1/3~2/3 of bottom of trench width, and length is 1~1.5 times of width, is highly higher than rice
The field water-break phase irrigation canals and ditches highest water surface.
Preferably, the host material be using after harvesting rice straw, harvesting plant residue is raw material in irrigation canals and ditches, preparation
Made of partial size < 1mm charcoal, then again by the bed mud substance of irrigation canals and ditches dredging after natural drying with the charcoal according to 20
What~30:1 mass ratio was prepared after mixing well, the packing volume of the host material accounts for the honeycomb cement tub inner body
Long-pending 2/3 or more.
Preferably, the functional microorganism is microbial bacterial agent, including roost rose of Sharon pseudomonad strain, bacillus cereus
Strain, the functional microorganism microbial inoculum are mixed with the host material according to the mass ratio of 1:20~30.
Preferably, the water plant is one or more combinations of very water, heavy water class water plant.
The invention has the benefit that 1, intensified ecological Interception Technology of the invention combines material absorption retention, plant
It absorbs, the pollutant catabolic gene action principle of the multipath of microorganism conversion, more canals is carried out to nitrogen, the phosphorus substance of rice field ditch water body
The combined purifying in road intercepts, and then height reduces the nitrogen and phosphorus loading of rice field ditch water body；2, the host material of the technology
It is entirely derived from the resource utilization of internal system waste, efficiently solves the problem of environmental pollution of ecological canal waste,
And it is cost-saved compared with exogenous material；3, the charcoal of the technology-bed mud compound matrix material is that water plant, function are micro-
Biology provides good habitat, especially bed mud material as system endogenous substance, effectively provides centainly for plant, microorganism
Carbon source, nutrient, avoid the nutrition pollution of exogenous material aggravation system, promote plant growth and microbial survival and its performance
Biological and ecological intercept function.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is water-break phase structural schematic diagram in rice field of the invention；
Fig. 3 is the structural schematic diagram of honeycomb cement tub of the invention；
Fig. 4 is nitrogen phosphorus ligands effect picture of the invention.
Figure label: 1 furrow bank, 2 bottoms of trench, 3 water-break runoffs, 4 honeycomb cement tubs, 5 host materials, 6 functional microorganisms, 7
Water plant.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Roost rose of Sharon pseudomonad strain and bacillus cereus strain used are in microorganism fungus kind in following embodiments
The existing strain that preservation administrative center is commercially available, is not related to the exploitation of novel bacterial, pertains only to its application.Also, in embodiment
Roost rose of Sharon pseudomonad used is specially that China typical culture collection center deposit number is CCTCC NO.M2014244
Bacterial strain；Bacillus cereus is specially that China Committee for Culture Collection of Microorganisms's common micro-organisms center's deposit number is
The bacterial strain of CGMCC No.8614；
Roost rose of Sharon pseudomonad zymocyte liquid and Bacillus cereus fermentation bacterium solution are using conventional method in embodiment
What culture obtained；Experimental facilities and experimental method described in following each embodiments, unless otherwise specified, be conventional equipment and often
Rule method；The material unless otherwise specified, can be commercially available on the market.
Referring to Fig.1-3, a kind of intensified ecological intercepting system of rice field ditch nitrogen phosphorus pollution of area source, including rice field ditch, move back
Water runoff 3 and honeycomb cement tub 4, the interior flowing of rice field ditch has water-break runoff 3, and multiple structures are provided in rice field ditch
Identical honeycomb cement tub 4, the rice field ditch include water inlet, water outlet, furrow bank 1 and bottom of trench 2, and honeycomb cement
Slot 4 is located on the inner wall of bottom of trench 2, and the inside of honeycomb cement tub 4 is filled with the mixture of host material 5 and functional microorganism 6,
And the top of honeycomb cement tub 4 is provided with opening, cultivating in honeycomb cement tub 4 has water plant 7, and water plant 7
Root extends to the inside of host material 5 Yu 6 mixture of functional microorganism, and honeycomb cement tub 4 is arranged in hollow rectangular-shape,
And honeycomb socket bore structure setting is presented in groove body surrounding, the width of honeycomb cement tub 4 is the 1/3~2/3 of 2 width of bottom of trench,
Length is 1~1.5 times of width, and height is slightly above the rice field water-break phase irrigation canals and ditches highest water surface, and host material 5 is with the water after harvest
It is raw material, the partial size < 1mm charcoal being prepared, then again by irrigation canals and ditches dredging that plant residue is gathered in rice straw, irrigation canals and ditches
What bed mud substance was prepared after mixing well after natural drying with the charcoal according to 20~30:1 mass ratio, host material
5 packing volume accounts for 2/3 or more of 4 inner volume of honeycomb cement tub, and functional microorganism 6 is microbial bacterial agent, including is dwelt
Rose of Sharon pseudomonad strain, bacillus cereus strain, 6 microbial inoculum of functional microorganism is with host material 5 according to the matter of 1:20~30
Amount than mixing, water plant 7 be very water, sink water class water plant one or more combinations, including reed, cattail, Lythrum salicaria,
Rib water shield.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
Embodiment: having carried out plant harvesting and dredging operation to ecological canal before test, selects representative strong neighbouring
Two almost the same ecological canals of specification are studied, will be on 10 in an ecological canal as embodiment research
Open honeycomb cement tub 4 is held, it is parallel to be staggeredly equidistantly placed in the heavier canal section of water pollution load, another irrigation canals and ditches conduct
Comparative example.Cement tub is rectangular parallelepiped structure, and length 0.6m, width 0.4m are highly 0.6m, and spacing 1.2m, water flow can
Pass freely through groove body.
Host material 5 is prepared, the resource utilization of source waste in the rice field ditch system of proving ground is entirely derived from: will
The plant residue of rice straw, irrigation canals and ditches harvesting after the harvest of rice field is prepared into charcoal under the conditions of high temperature anaerobic, crushed 1mm
Sieve, the bed mud substance of irrigation canals and ditches dredging is mixed well with charcoal 25:1 in mass ratio after natural drying, forms host material 5.
It is packed into cement tub after host material 5 and denitrogenation dephosphorizing microbial inoculum are mixed well according to the mass ratio of 25:1, loading accounts for cement
Water plant reed is cultivated in the 2/3 of slot space later, respectively the setting sampling section at the water inlet of irrigation canals and ditches and discharge outlet,
In rice field water-break phase sample detection water body nitrogen, phosphorus concentration three times, nitrogen, the tp removal rate of ecological canal are analyzed, it can from Fig. 4
Out, there is no the irrigation canals and ditches for implementing intensified ecological Interception Technology to the removal rate of total nitrogen, total phosphorus in 30% level above in comparative example, and
The irrigation canals and ditches for implementing intensified ecological Interception Technology in embodiment are more preferable to total nitrogen, the removal effect of total phosphorus in the water-break of rice field, total nitrogen, total
The removal rate of phosphorus is up to 50% or more, and removal effect is also apparently higher than existing ecological canal and strengthens what Interception Technology was reported
40% level above；It can be seen that Interception Technology of the invention reaches highly enriched interception to rice field ditch nitrogen phosphorus pollution of area source
Effect.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (5)
1. a kind of intensified ecological intercepting system of rice field ditch nitrogen phosphorus pollution of area source, including rice field ditch, water-break runoff (3) and
Honeycomb cement tub (4), which is characterized in that the rice field ditch includes furrow bank (1) and bottom of trench (2), in the rice field ditch
Flowing has water-break runoff (3), and the identical honeycomb cement tub (4) of multiple structures is provided in rice field ditch, and each described
Honeycomb cement tub (4) is respectively positioned on bottom of trench (2) inner wall, and the inside of the honeycomb cement tub (4) is filled with host material (5)
The top of the mixture of functional microorganism (6), and honeycomb cement tub (4) is provided with opening, the honeycomb cement tub (4)
Interior cultivation has water plant (7), and the root of water plant (7) extends to host material (5) and functional microorganism (6) mixture
Inside.
2. the intensified ecological intercepting system of rice field ditch nitrogen phosphorus pollution of area source according to claim 1, which is characterized in that institute
Honeycomb cement tub (4) are stated in hollow rectangular-shape, and groove body surrounding is in honeycomb socket bore structure setting, the honeycomb water
The width of mud groove (4) is the 1/3~2/3 of bottom of trench (2) width, and length is 1~1.5 times of width, is highly higher than the rice field water-break phase
The irrigation canals and ditches highest water surface.
3. the intensified ecological intercepting system of rice field ditch nitrogen phosphorus pollution of area source according to claim 1, which is characterized in that institute
State host material (5) be using after harvesting rice straw, harvesting plant residue is raw material in irrigation canals and ditches, partial size < 1mm for being prepared
Charcoal, then the bed mud substance of irrigation canals and ditches dredging is filled with the charcoal according to 20~30:1 mass ratio after natural drying again
It is prepared after point mixing, the packing volume of the host material (5) accounts for the 2/3 of honeycomb cement tub (4) inner volume
More than.
4. the intensified ecological intercepting system of rice field ditch nitrogen phosphorus pollution of area source according to claim 1, which is characterized in that institute
Stating functional microorganism (6) is microbial bacterial agent, including roost rose of Sharon pseudomonad strain, bacillus cereus strain, the function
Microorganism (6) microbial inoculum is mixed with the host material (5) according to the mass ratio of 1:20~30.
5. the intensified ecological intercepting system of rice field ditch nitrogen phosphorus pollution of area source according to claim 1, which is characterized in that institute
State one or more combinations that water plant (7) is very water, heavy water class water plant.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811601662.9A CN109626583A (en) | 2018-12-26 | 2018-12-26 | A kind of intensified ecological intercepting system of rice field ditch nitrogen phosphorus pollution of area source |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110204050A (en) * | 2019-05-29 | 2019-09-06 | 农业农村部环境保护科研监测所 | The agricultural ecological intercepting system and method for preventing area source pollutants from spreading |
| CN114230105A (en) * | 2021-12-27 | 2022-03-25 | 南京大学 | Method for reducing farmland non-point source pollution by utilizing reinforced natural irrigation and drainage ditches |
| CN115583730A (en) * | 2022-09-28 | 2023-01-10 | 西南科技大学 | Method for purifying rice field water discharge by planting hydroponic vegetables in rice field drainage ditch |
| WO2023115781A1 (en) * | 2021-12-21 | 2023-06-29 | 浙江大学 | Farmland drainage water treatment system and method based on ecological interception and cyclic purification |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966083A (en) * | 2012-11-30 | 2013-03-13 | 中国科学院东北地理与农业生态研究所 | Ecological ditch constructing method for controlling nitrogen and phosphorus in farmland drainage |
| CN206799267U (en) * | 2017-04-28 | 2017-12-26 | 南京万德斯环保科技股份有限公司 | A kind of cities and towns irrigation canals and ditches ecological purification system |
-
2018
- 2018-12-26 CN CN201811601662.9A patent/CN109626583A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966083A (en) * | 2012-11-30 | 2013-03-13 | 中国科学院东北地理与农业生态研究所 | Ecological ditch constructing method for controlling nitrogen and phosphorus in farmland drainage |
| CN206799267U (en) * | 2017-04-28 | 2017-12-26 | 南京万德斯环保科技股份有限公司 | A kind of cities and towns irrigation canals and ditches ecological purification system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110204050A (en) * | 2019-05-29 | 2019-09-06 | 农业农村部环境保护科研监测所 | The agricultural ecological intercepting system and method for preventing area source pollutants from spreading |
| WO2023115781A1 (en) * | 2021-12-21 | 2023-06-29 | 浙江大学 | Farmland drainage water treatment system and method based on ecological interception and cyclic purification |
| CN114230105A (en) * | 2021-12-27 | 2022-03-25 | 南京大学 | Method for reducing farmland non-point source pollution by utilizing reinforced natural irrigation and drainage ditches |
| CN115583730A (en) * | 2022-09-28 | 2023-01-10 | 西南科技大学 | Method for purifying rice field water discharge by planting hydroponic vegetables in rice field drainage ditch |
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