CN106211844B - A kind of prevention and control of farmland nitrogen and phosphorus pollution and restorative procedure - Google Patents
A kind of prevention and control of farmland nitrogen and phosphorus pollution and restorative procedure Download PDFInfo
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- CN106211844B CN106211844B CN201610564945.5A CN201610564945A CN106211844B CN 106211844 B CN106211844 B CN 106211844B CN 201610564945 A CN201610564945 A CN 201610564945A CN 106211844 B CN106211844 B CN 106211844B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
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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
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
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Abstract
The invention belongs to field of ecological agricultural, the prevention and control of specially a kind of farmland nitrogen and phosphorus pollution and restorative procedure include the following steps：A carries out the setting of farmland ditch；B installs farmland irrigating device above sump；C farmland fertilizations；The subsequent supplementary fertilizer in the farmlands d takes filtering ponds to assemble farmland water, carries out concentration of nitrogen and phosphorus analysis, is then needed after being diluted the farmland water of filtering ponds according to farmland, be sprayed to farmland.The case where it effectively prevents and repairs farmland nitrogen and phosphorus pollution.
Description
Technical field
The invention belongs to field of ecological agricultural, the prevention and control of specially a kind of farmland nitrogen and phosphorus pollution and restorative procedure.
Background technology
In China, agricultural non-point source pollution has become an important factor for influencing water environment, is becoming China's ecological environment and is disliking
One of the main reason for change, seriously restricts the sustainable development of agricultural and rural economy environment.And cause agricultural non-point source pollution
The main reason for be chemical fertilizer, pesticide it is a large amount of input with unreasonable use, this leads to the concentration of total nitrogen and total phosphorus in agricultural drain
High, a large amount of remaining nitrogen phosphorus are entered river, lake after rain drop erosion by crisscross river network system, cause algae
Class eutrophication problem protrudes, harmless very big.
Currently, striving to the above problem, there is related art scheme, such as a kind of Chinese patent CN105002869A " reductions
The method of farmland nitrogen discharge and phosphorus discharge ", includes the following steps：(1) agricultural run-off is determined, clearly converge node；(2) to agricultural run-off into
Row is collected and preliminary treatment；(3) purified treatment is carried out to agricultural run-off；(4) agricultural run-off is regulated and stored and is purified water；
(5) purified water stablizes discharge.A kind of method reducing farmland nitrogen discharge and phosphorus discharge of the present invention, is easy to implement, operating cost is low, passes through
Transformation to existing farmland ditch, the pool and newly-built partial trench, the pool, and the locality appropriate with purification function is prepared wherein
Water plant, and it is aided with engineering technology means appropriate, it realizes to the nutrients such as agricultural non-point source pollution, especially nitrogen, phosphorus
It intercepts and removes, and be finally reached control agricultural non-point source pollution and improve the purpose of quality of water environment.Also there is Chinese patent
CN102001752A " one kind is using Phalaris grass as sociales ", builds the related cultivation skill of farmland nitrogen phosphorus ecological intercepting irrigation canals and ditches phytobiocoenose
Art and method belong to the technical fields such as agricultural non-point source pollution control and water environment treatment.This method provides Phalaris grass seeds groups to build
Related seed adopts storage, sowing, rich water running, overwinter management and cradles a series of technical measures such as harvest in journey.The technology is answered
With can effectively solve the problems, such as existing ecological intercepting irrigation canals and ditches because structure of plant community owe rationally caused by rainy season impeded drainage.This two
Person is to be collected to agricultural run-off and carry out purifying water body and then will be purified by planting aquatic plants in the trench
Water body is discharged.
Also have and the super phosphorus of dry farmland is fixed, then build irrigation canals and ditches pool wet land system, it is efficient to carry out biological fixation
Denitrogenation dephosphorizing；Again, wetland plant Fertilizer Transformed returning to the field.Such as a kind of " the reduction nonirrigated farmland sources Dan Linmian Chinese patent CN103071671A
The method of pollution ", including such as lower part：First, using FGD gypsum, i.e. desulfurized gesso of flue gas, to dryland soil excess phosphorus element into
Row is fixed, and the runoff loss of soluble state phosphorus element is reduced, and realizes farmland in-situ phosphorus element emission reduction；Secondly, structure irrigation canals and ditches pool wet land system,
Carry out biological fixation high-efficient denitrification and dephosphorization；Again, wetland plant Fertilizer Transformed returning to the field reduces the throwing of chemical fertilizer soluble nitrogen phosphorus
Enter.For the method from hindering control simultaneously in generation, after being lost in, in terms of pollution sources three, final realize controls nonirrigated farmland nitrogen and phosphorus pollution
Purpose.Also there is another method to excavate filtering ponds, clear water is focused in the pond on the side of farmland, drop is realized by backwashing
Low farmland concentration of nitrogen and phosphorus, such as Chinese patent CN 102786110A.
The shortcomings that these methods：First, being to take up a large area, the usable floor area in farmland is reduced, is not that peasant gladly receives
Mode；Second is that quantities is big, take time and effort；Third, can not real-time judgment farmland concentration of nitrogen and phosphorus；Fourth, can not ensure applied nitrogen
The utilization rate of phosphorus.
Invention content
In order to solve the above technical problems, the present invention provides prevention and control and the restorative procedure of a kind of farmland nitrogen and phosphorus pollution, effectively
The case where preventing and repairing farmland nitrogen and phosphorus pollution.
To realize the above-mentioned technical purpose, the specific technical solution that the present invention takes is that a kind of farmland nitrogen and phosphorus pollution is prevented
Control and restorative procedure, include the following steps：A carries out the setting of farmland ditch, and irrigation canals and ditches are arranged by agricultural run-off direction, is converged in irrigation canals and ditches
Filtering ponds are arranged in the position of stream, and the inner wall of filtering ponds is protected using filter screen, and the bottom of filtering ponds is equipped with successively from top to bottom
Ultrafiltration membrane supporting network and ultrafiltration membrane, ultrafiltration membrane are filtered for realizing to the nitrogen phosphorus composition in the water of farmland, and filtering ponds are for gathering
Collect the farmland water after ultrafiltration membrance filter；Meanwhile the center of filtering ponds is equipped with sump, the well head size of sump was less than
The size in filter tank, sump is for collecting the farmland water after ultrafiltration membrance filter；
B installs farmland irrigating device above sump, and the farmland irrigating device draws water source from sump；
C farmland fertilizations discharge base manure before farmland is cultivated, and the amount of base manure is farmland planting institute's fertilizer requirement in total
60-80%；It ploughs shallowly after 3-5 days after discharging base manure, shallow plowing number, which is subject to, ensures that base manure submerges farmland；Fertilizer application condition：Farmland
It is dry, and without rainwater, base manure is preferably farm manure within 1-5 days after fertilising, if coming without rainwater within 7-10 days discharging base manure, is filled
Device enabling is irrigate, irrigation rig is from drawing water for field irrigation in sump；
The subsequent supplementary fertilizer in the farmlands d
It takes filtering ponds to assemble farmland water, carries out concentration of nitrogen and phosphorus analysis, then needed the farmland of filtering ponds according to farmland
After water is diluted, it is sprayed to farmland.
The well head of technical solution as an improvement of the present invention, sump carries boss, and the height of boss is less than filtering ponds
Depth.
Technical solution as an improvement of the present invention, farm manure need decomposed fermentation before release.
Technical solution as an improvement of the present invention, the concentration of the farmland water assembled in filtering ponds nitrogen phosphorus composition after a test
After twice of nitrogen phosphorus composition concentration needed for farmland, the farmland water of extractable filtering ponds carries out solarization system, obtains solid particulate matter,
It is used next time or after dilution for storing for supplementing other farmland nitrogen phosphorus compositions.
Technical solution as an improvement of the present invention can be mixed with chemical fertilizer in farm manure；The weight ratio of farm manure and chemical fertilizer is
5：1.
It is a further object of the present invention to provide the curing schemes of farm manure, include the following steps：
Step 1: excavating aerobic fermentation tank in the good place of daylighting；
Step 2: coarse sand and chemical fertilizer are carried out 1：The mixing of 1 mass ratio, obtains mixture A, and the coarse sand refers to particle
Size is all higher than the sandstone of 5mm；
Step 3: by mixture A and farm manure in mass ratio 1:(5-10) it carries out after evenly mixing, mixture A and farmers'
Fertilizer preferably 1:5-6 is put into aerobic fermentation tank and in aerobic fermentation tank opening covering thin transparent film；
Step 4: after standing 10-20 days, the farm manure being separated by solid-liquid separation takes out liquid portion in aerobic fermentation tank, will cure
It is discharged in farmland after liquid portion is diluted in pond；Solid matter in aerobic fermentation tank continues to be placed on aerobic fermentation tank, opens curing
Hyaline membrane on pond allows solid matter evaporable water in aerobic fermentation tank to obtain dry solid matter, then by dry solid matter into
Row is directly spread on farmland surface after shaking off the intermediate coarse sand of removal.
The improved technical solution of curing scheme as farm manure, chemical fertilizer are the substance for including following parts by weight, carbonic acid
2-10 parts of 2-5 parts of iron, 3-10 parts of calcium carbonate and ammonium carbonate.
Advantageous effect
By establishing irrigation canals and ditches and filtering ponds and sump so that farmland ponding can be flowed by irrigation canals and ditches to be pooled to
In filtering ponds, and the recycling of water body after the filtering and filtering of ponding is completed so that it is convenient to which nitrogen phosphorus composition can be in water body in farmland
Drive under leave farmland again and can be completed in filtering ponds recycling, without causing nitrogen phosphorus fertilizer to be lost in；Water body can also collect simultaneously
Assemble the collection, it can be achieved that low concentration of nitrogen and phosphorus water body under the action of well, and the water body collected is also reusable, realizes nitrogen
The dual recycling of water body of phosphate fertilizer and low concentration of nitrogen and phosphorus；Further more, filtering ponds possess always the water body in farmland, measurement can be passed through
Nitrogen phosphorus element content in filtering ponds can detect the concentration of nitrogen and phosphorus in farmland, realize the real-time monitoring to farmland concentration of nitrogen and phosphorus；
Most important difference lies in be not required to prevent nitrogen phosphorus composition by addition building ecological pool or the ecological forest with the prior art
It flows in surface water, meets farmland itself lock phosphorus lock nitrogen and water lock, give full play to the utilization rate of nitrogen phosphorus in base manure, avoid repeating
Nitrogen phosphorus fertilizer is augmented, the usage amount of external nitrogen phosphorus fertilizer is reduced, realizes ecological circulation.
Description of the drawings
The layout drawing of the filtering ponds and sump in the farmlands of the present invention Fig. 1；
1, filter screen in figure；2, sump；3, ultrafiltration membrane；4, filtering ponds；5, boss.
Specific implementation mode
It is clearer for the purpose and technical solution that make the embodiment of the present invention, below in conjunction with the attached of the embodiment of the present invention
Figure, is clearly and completely described the technical solution of the embodiment of the present invention.Obviously, described embodiment is of the invention
A part of the embodiment, instead of all the embodiments.Based on described the embodiment of the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of without creative work, shall fall within the protection scope of the present invention.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific terminology) there is meaning identical with the general understanding of the those of ordinary skill in fields of the present invention.Should also
Understand, those terms such as defined in the general dictionary, which should be understood that, to be had and the meaning in the context of the prior art
The consistent meaning of justice, and unless defined as here, will not be with idealizing or the meaning of too formal be explained.
Embodiment 1
A kind of prevention and control of farmland nitrogen and phosphorus pollution and restorative procedure, include the following steps：
A carries out the setting of farmland ditch, and irrigation canals and ditches are arranged by agricultural run-off direction, and filtering ponds are arranged in the position of irrigation canals and ditches confluence
4, the inner walls of filtering ponds 4 is protected using filter screen 1, the bottoms of filtering ponds 4 be equipped with successively from top to bottom 3 supporting network of ultrafiltration membrane with
Ultrafiltration membrane 3, ultrafiltration membrane 3 are filtered for realizing to the nitrogen phosphorus composition in the water of farmland, and filtering ponds 4 are for assembling 3 mistake of ultrafiltration membrane
Farmland water after filter；Meanwhile the center of filtering ponds 4 is equipped with sump 2, the well head size of sump 2 is less than filtering ponds 4
Size, sump 2 is for collecting 3 filtered farmland water of ultrafiltration membrane；
In the present embodiment, in order to reduce filtering ponds 4 when collecting high concentration N-P water to the pressure of entrance ultrafiltration membrane 3
The well head of power, sump 2 carries boss 5, and the height of boss 5 is less than the depth of filtering ponds 4, in this way when farmland water is more,
Water body can cover the boss 5 of sump 2, be filtered by the ultrafiltration membrane 3 on 2 boss 5 of sump, and filtered water body is fallen directly into
In sump 2, and the water body of high concentration of nitrogen and phosphorus then collect in filtering ponds 4 by the periphery of boss 5；When in farmland, water is less, water
Body is directly pooled to the periphery of boss 5 in filtering ponds 4, is filtered for 2 mouthfuls not in sump.Here the size of filtering ponds 4 is set
2 mouthfuls of sizes of ratio sump of meter are big and 2 mouthfuls of another objects for being equipped with boss 5 of sump are, can possess constantly in filtering ponds 4
The water body assembled from farmland, therefore can judge farmland nitrogen by detecting the nitrogen and phosphorus content in filtering ponds 4 in water body
Phosphorus content.
B installs farmland irrigating device above sump 2, and the farmland irrigating device draws water source from sump 2；
Irrigation rig described in the present embodiment is drawn water using high-pressure hydraulic pump from sump 2；
C farmland fertilizations discharge base manure before farmland is cultivated, and the amount of base manure is farmland planting institute's fertilizer requirement in total
60-80%；It ploughs shallowly after 3-5 days after discharging base manure, shallow plowing number, which is subject to, ensures that base manure submerges farmland；Fertilizer application condition：Farmland
It is dry, and without rainwater, base manure is preferably farm manure within 1-5 days after fertilising, if coming without rainwater within 7-10 days discharging base manure, is filled
Device enabling is irrigate, irrigation rig is from drawing water for field irrigation in sump 2；
The subsequent supplementary fertilizer in the farmlands d
It takes filtering ponds 4 to assemble farmland water, carries out concentration of nitrogen and phosphorus analysis, then needed the agriculture of filtering ponds 4 according to farmland
After water in field is diluted, it is sprayed to farmland；Also the concentration of the farmland water that can assemble in filtering ponds 4 nitrogen phosphorus composition after a test is super
After crossing twice of nitrogen phosphorus composition concentration needed for farmland, the farmland water of extractable filtering ponds 4 carries out solarization system, obtains solid particulate matter,
Obtained solid particulate matter, which can be used for storing, to be used or after dilution for supplementing other farmland nitrogen phosphorus compositions next time.
In order to improve the stability of fertilizer in farm manure, chemical fertilizer can be mixed in farm manure；The weight ratio of farm manure and chemical fertilizer
It is 5：1.
In order to fully extract the nutrition of farm manure, farm manure needs decomposed fermentation before release, the curing scheme of farm manure,
Include the following steps：Step 1: excavating aerobic fermentation tank in the good place of daylighting；Step 2: coarse sand and chemical fertilizer are carried out 1：1 quality
The mixing of ratio, obtains mixture A, and the coarse sand refers to the sandstone that particle size is all higher than 5mm；Step 3: by mixture A and agriculture
Family's fertilizer in mass ratio 1:(5-10) it carries out after evenly mixing, mixture A and farm manure are preferably 1:5-6 is put into aerobic fermentation tank simultaneously
In aerobic fermentation tank opening covering thin transparent film；Step 4: after standing 10-20 days, the farm manure being separated by solid-liquid separation takes out curing
Liquid portion in pond discharges after being diluted liquid portion in aerobic fermentation tank in farmland；Solid matter in aerobic fermentation tank continues
It is placed on aerobic fermentation tank, opens the hyaline membrane on aerobic fermentation tank, allows solid matter evaporable water in aerobic fermentation tank to obtain dry solid matter, so
It is directly spread on farmland surface after carrying out the intermediate coarse sand of removal by dry solid matter afterwards.
Wherein, chemical fertilizer is the substance for including following parts by weight, 2-5 parts of ferric carbonate, 3-10 parts of calcium carbonate and ammonium carbonate 2-
10 parts.It is using the main reason for this formula, the chemical composition in farm manure is mainly bicarbonate, in digest process
In, bicarbonate can resolve into water and carbonate, and this process is reversible, can be inhibited after increasing carbonate chemical fertilizer
The positive process of this reversible reaction, and then retain the fertilizer of farm manure.
During different embodiments, the substance of following parts by weight can be used in chemical fertilizer：
Example 1,2 parts of 2 parts of ferric carbonate, 10 parts of calcium carbonate and ammonium carbonate；
Example 2,10 parts of 5 parts of ferric carbonate, 3 parts of calcium carbonate and ammonium carbonate；
Example 3,6 parts of 3 parts of ferric carbonate, 5 parts of calcium carbonate and ammonium carbonate；
Example 4,4 parts of 4 parts of ferric carbonate, 7 parts of calcium carbonate and ammonium carbonate.
Implementation result
Using two pieces of farmlands with homalographic of the same nitrogen and phosphorus pollution degree in same region, respectively farmland A and farmland B,
The prevention and control of the present embodiment 1 and restorative procedure are implemented to farmland A and are carried out at the same time plantation, farmland B is directly planted, in 1 year
1.5 times of the farmland B yield of interior farmland A yield；The amount of nitrogen phosphorus fertilizer used in the A of farmland is 1/3 of the amount of nitrogen phosphorus fertilizer used in the A of farmland,
After the completion of plantation in 1 year, it is that farmland B remains the 1/4 of concentration of nitrogen and phosphorus that farmland A, which remains concentration of nitrogen and phosphorus,.
It these are only embodiments of the present invention, the description thereof is more specific and detailed, but can not therefore be interpreted as pair
The limitation of the scope of the claims of the present invention.It should be pointed out that for those of ordinary skill in the art, not departing from the present invention
Under the premise of design, various modifications and improvements can be made, these are all belonged to the scope of protection of the present invention.
Claims (7)
1. prevention and control and the restorative procedure of a kind of farmland nitrogen and phosphorus pollution, it is characterised in that：Include the following steps：A carries out farmland ditch
Setting, irrigation canals and ditches are set by agricultural run-off direction, filtering ponds are set in the position of irrigation canals and ditches confluence, the inner walls of filtering ponds is using filtering
Net protection, the bottom of filtering ponds are equipped with ultrafiltration membrane supporting network and ultrafiltration membrane successively from top to bottom, and ultrafiltration membrane is for realizing to agriculture
Nitrogen phosphorus composition in water in field is filtered；Meanwhile the center of filtering ponds is equipped with sump, the well head size of sump is less than
The size of filtering ponds, sump is for collecting the farmland water after ultrafiltration membrance filter；
B installs farmland irrigating device above sump, and the farmland irrigating device draws water source from sump；
C farmland fertilizations discharge base manure before farmland is cultivated, the amount of base manure for farmland planting institute's fertilizer requirement in total 60-
80%；It ploughs shallowly after 3-5 days after discharging base manure, shallow plowing number, which is subject to, ensures that base manure submerges farmland；Fertilizer application condition：Farmland is dry
It is dry, and without rainwater, base manure is selected as farm manure within 1-5 days after fertilising, if coming without rainwater within 7-10 days discharging base manure, irrigates dress
Set enabling, irrigation rig is from drawing water for field irrigation in sump；
The subsequent supplementary fertilizer in the farmlands d
Take filtering ponds assemble farmland water, carry out concentration of nitrogen and phosphorus analysis, then according to farmland need by the farmland water of filtering ponds into
After row dilution, it is sprayed to farmland.
2. prevention and control and the restorative procedure of a kind of farmland nitrogen and phosphorus pollution according to claim 1, it is characterised in that：Sump
Well head carries boss, and the height of boss is less than the depth of filtering ponds.
3. prevention and control and the restorative procedure of a kind of farmland nitrogen and phosphorus pollution according to claim 1, it is characterised in that：Farm manure exists
Decomposed fermentation is needed before release.
4. prevention and control and the restorative procedure of a kind of farmland nitrogen and phosphorus pollution according to claim 1, it is characterised in that：In filtering ponds
The concentration of nitrogen phosphorus composition is more than that can extract filtering needed for farmland after twice of nitrogen phosphorus composition concentration to the farmland water of aggregation after a test
The farmland water in pond carries out solarization system, obtains solid particulate matter, is used next time or after dilution for storing for supplementing other
Farmland nitrogen phosphorus composition.
5. prevention and control and the restorative procedure of a kind of farmland nitrogen and phosphorus pollution according to claim 1, it is characterised in that：In farm manure
It is mixed with chemical fertilizer；The weight ratio of farm manure and chemical fertilizer is 5：1.
6. prevention and control and the restorative procedure of a kind of farmland nitrogen and phosphorus pollution according to claim 5, which is characterized in that farm manure is
It is cured using following steps：
Step 1: excavating aerobic fermentation tank in the good place of daylighting；
Step 2: coarse sand and chemical fertilizer are carried out 1：The mixing of 1 mass ratio, obtains mixture A, and the coarse sand refers to particle size
It is all higher than the sandstone of 5mm；
Step 3: by mixture A and farm manure in mass ratio 1:(5-10) after evenly mixing, be put into aerobic fermentation tank and ripe
Change pond opening covering thin transparent film；
Step 4: after standing 10-20 days, the farm manure being separated by solid-liquid separation takes out liquid portion in aerobic fermentation tank, will be in aerobic fermentation tank
Liquid portion discharges after being diluted in farmland；Solid matter in aerobic fermentation tank continues to be placed on aerobic fermentation tank, opens on aerobic fermentation tank
Hyaline membrane, allow solid matter evaporable water in aerobic fermentation tank to obtain dry solid matter, then tremble dry solid matter
It is directly spread on farmland surface after falling the intermediate coarse sand of removal.
7. prevention and control and the restorative procedure of a kind of farmland nitrogen and phosphorus pollution according to claim 6, which is characterized in that chemical fertilizer is packet
Include the substance of following parts by weight, 2-10 parts of 2-5 parts of ferric carbonate, 3-10 parts of calcium carbonate and ammonium carbonate.
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| CN201610564945.5A CN106211844B (en) | 2016-07-19 | 2016-07-19 | A kind of prevention and control of farmland nitrogen and phosphorus pollution and restorative procedure |
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| CN106211844B true CN106211844B (en) | 2018-08-03 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535624A (en) * | 2011-11-18 | 2012-07-04 | 江苏大学 | Sewage concentration drainage device |
| CN203568939U (en) * | 2013-09-27 | 2014-04-30 | 南京宏博环保实业有限公司 | Agricultural non-point source pollution control system |
| CN103803760A (en) * | 2014-01-26 | 2014-05-21 | 河海大学 | Wet land purification system with serially-connected rice field drainage ditches in irrigated area |
| CN104386882A (en) * | 2014-11-26 | 2015-03-04 | 武汉市润之达石化设备有限公司 | Biological ultrafiltration membrane sewage treatment device |
| CN104594446A (en) * | 2015-01-22 | 2015-05-06 | 浙江大学 | Initial runoff collection, purification and recycling system and initial runoff collection, purification and recycling method thereof |
| CN105002869A (en) * | 2015-07-08 | 2015-10-28 | 江苏田娘农业科技有限公司 | Method of reducing farmland nitrogen and phosphorus emissions |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140224717A1 (en) * | 2013-02-12 | 2014-08-14 | Graham John Gibson Juby | Wastewater treatment system with microbial fuel cell power |
-
2016
- 2016-07-19 CN CN201610564945.5A patent/CN106211844B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535624A (en) * | 2011-11-18 | 2012-07-04 | 江苏大学 | Sewage concentration drainage device |
| CN203568939U (en) * | 2013-09-27 | 2014-04-30 | 南京宏博环保实业有限公司 | Agricultural non-point source pollution control system |
| CN103803760A (en) * | 2014-01-26 | 2014-05-21 | 河海大学 | Wet land purification system with serially-connected rice field drainage ditches in irrigated area |
| CN104386882A (en) * | 2014-11-26 | 2015-03-04 | 武汉市润之达石化设备有限公司 | Biological ultrafiltration membrane sewage treatment device |
| CN104594446A (en) * | 2015-01-22 | 2015-05-06 | 浙江大学 | Initial runoff collection, purification and recycling system and initial runoff collection, purification and recycling method thereof |
| CN105002869A (en) * | 2015-07-08 | 2015-10-28 | 江苏田娘农业科技有限公司 | Method of reducing farmland nitrogen and phosphorus emissions |
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| CN106211844A (en) | 2016-12-14 |
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