CN107986557A - A kind of synchronous coupled biological treatment process for removing agricultural runoff nitrogen phosphorus - Google Patents
A kind of synchronous coupled biological treatment process for removing agricultural runoff nitrogen phosphorus Download PDFInfo
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- CN107986557A CN107986557A CN201711149024.3A CN201711149024A CN107986557A CN 107986557 A CN107986557 A CN 107986557A CN 201711149024 A CN201711149024 A CN 201711149024A CN 107986557 A CN107986557 A CN 107986557A
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
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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
- C02F2001/007—Processes including a sedimentation step
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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
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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
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
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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
- C02F7/00—Aeration of stretches of water
Abstract
Integrated treatment, portable degree height, the coupled biological treatment process that agricultural runoff nitrogen phosphorus is comprehensively synchronously removed to all kinds of pollutant processes in sewage are carried out to rural area agricultural, life and animal husbandry sewage the present invention relates to a kind of, its feature is：The beneficial effect of recycling is generated to agricultural wastes material, during removal of impurities, purification are produced to sewage, poisonous and harmful substance is not produced, meets green and healthy environmentally friendly process requirements；Required processing equipment is simple, and use cost is relatively low, and integration manipulation is more convenient, more efficient；The total removal rate of TN, TP are high, and the removal to harmful organic substance in deep oxidation pond is thorough, there is high purification scavenging effect；The organic pollution that altered contents can promote to be difficult to degrade in sewage is decomposed, is degraded, and is converted it into material that is pollution-free or being degraded again by microorganism, is improved microbial degradation efficiency and effect.
Description
Technical field
The present invention relates to a kind of sewage treatment field, more particularly to a kind of, life agriculture to rural area and animal husbandry dirt
Water carries out integrated treatment, portable degree height, comprehensively synchronously removes agricultural runoff nitrogen phosphorus to all kinds of pollutant processes in sewage
Coupled biological treatment process.
Background technology
In recent years, with the fast development of villages and small towns economy, agricultural drain, irrigate more than water, village sewage, livestock and poultry cultivation sewage
Increase year by year Deng agricultural runoff discharge capacity, it has also become Drinking Water in China pollution of waterhead, lake storehouse eutrophication, quality of water environment are continuous
The principal element of deterioration.Agricultural runoff is highlighted the most with nitrogen and phosphorus pollution, is cut down and is intercepted agricultural runoff nitrogen and phosphorus pollution to improving water ring
Border quality is significant.At present, technology of biological membrane is because its impact load of resistance to water quality is good, easy to operate, runnability is stable, cost
The advantages that relatively low, is subject to greater attention.However, agricultural runoff can utilize organic matter, than relatively low, standard biologic embrane method only leans on internal carbon source
Efficiently use and be difficult to reach good Nitrogen/Phosphorus Removal, need additional carbon to adjust.
Types carbon sources supply at present mainly has water-soluble carbon source and solid carbon source.Wherein, though additional liquid carbon source can be obvious
Improve denitrification capability, but its operating cost is higher, and liquid carbon source is easy to run off and produces secondary pollution.And solid carbon source is because of it
Possess organic matter release slowly at the same time as bio-carrier advantage, be gradually applied to denitrification dephosphorization technique in recent years.I
State is agricultural production big country, there is the generation of the agricultural wastes such as substantial amounts of corncob, rice straw, rice husk every year, wherein the overwhelming majority
Farmers''s fuel can only be dropped or be only used as, not only causes resource greatly to waste and increases environmental pressure.In face of severe agriculture
Industry runoff pollution problem, is handled using agricultural wastes as degradable biological matter carrier applied to agricultural runoff pollution, can not only
Processing cost is reduced, and existing green resource can be utilized, new way is provided for the comprehensive utilization of agricultural wastes.In addition, agriculture
Industry discarded object production charcoal has been increasingly becoming hot topic, and charcoal specific surface area is big, can effectively adsorb pollutant, and can provide portion
Divide mineral nutrition to promote microorganism growth, standard biologic embrane method is improved significant.
Patent Office of the People's Republic of China authorized in the invention mandate for disclosing a kind of biomembrane sewage processing method in 13 days 2 months in 2013
Notification number is CN102503045B, it uses grit water separator and preaeration tank to carry out preformed precipitate and preaeration, then will locate in advance
After sewage after reason is passed through biofilter progress biofilm biofilm, the technique of progress conventional water treatment running, feature exists
Biomembrane is prevented in the contact probability that make use of inner labyrinth runner to improve sewage and biomembrane, and using ceramic substrate filler
Conglomeration, improves the treatment effeciency of sewage disposal, but it is handled by the way of point pond processing, integrated management inconvenience, and
And its water and treat agricultural waste to some low-carbon high-nitrogens is ineffective, biomembrane is to water purification in the case of carbon source deficiency
Greatly weakened, and do not handled effectively for the organic pollution of some biomembrane difficult degradations.
The content of the invention
Drinking Water in China pollution of waterhead, lake storehouse eutrophication, water environment are caused to solve above-mentioned agricultural and animal husbandry sewage
Quality constantly deteriorates, and at present on the market not for the agricultural of low-carbon high-nitrogen phosphorus content and the good processing of animal husbandry sewage
The problem of technique, there is provided a kind of integrated treatment, portable degree height to be carried out to agricultural and animal husbandry sewage, to all kinds of dirts in sewage
Contaminate the comprehensive synchronous coupled biological treatment process for removing agricultural runoff nitrogen phosphorus of thing processing.
To achieve the above object, the present invention uses following technical scheme：
A kind of synchronous coupled biological treatment process for removing agricultural runoff nitrogen phosphorus, the treatment process comprise the following steps：
1）Sewage is imported from coupled biological system water inlet, coupled biological system is divided into totally four area of the first to the 4th area, sewage
The firstth area of coupled biological system is initially entered, the firstth area is crystallizing field, and 0~0.5h of deposition is carried out in crystallizing field；
2）Will be via step 1）The post-depositional sewage imports the secondth area of coupled biological system, and the secondth area is degradable biological
Filler arranges area, and degradable biological filler arrangement is disposed with bio-carrier in area, is arranged in degradable biological filler in area
React 1~2h；
3）Will be in step 2）Sewage after being reacted in the degradable biological filler arrangement area imports the 3rd of coupled biological system
Area, the 3rd area are mixed-arrangement area, mixed-arrangement routine carrier filler and biological carbon filling material in mixed-arrangement area, in mixed-arrangement
0.5~2.5h is reacted in area；
4）Will be in step 3）Sewage after being reacted in the mixed-arrangement area imports the 4th area of coupled biological system, and the 4th area is
Modification biological carrier arranges area, and modification biological carrier arrangement is arranged special bio-modification filler in area, irradiated in visible light source
8~12h of lower reaction, exports to obtain clear water from water outlet；
Wherein step 1）The water inlet is equipped with grid, and grid is any one in mechanical grille and artificial grid, step
2）The bio-carrier be rice husk, sawdust, stalk, sawdust and corncob in any one, step 3）In conventional load
Body filler be floating type dump packing and mounted model elastic filler in any one, wherein degradable biological filler arrangement area and
Modification biological carrier arrangement area is aerated using micro- aeration mode, and crystallizing field and mixed-arrangement area are described heavy without aeration
Ji Qu tops are equipped with two lattice and keep off, and degradable biological filler arrangement area and mixed-arrangement area top are respectively provided with a lattice gear.
Preferably, step 4）The preparing raw material of the special bio-modification filler includes the material of following parts by weight：
45~50 part of five nitric hydrate bismuth, 60~65 parts of dust technologies, 75~80 parts of citric acids, 10~13 parts of ammonium metavanadates, 45~50 parts
Distilled water.
Preferably, the special bio-modification filler preparation process comprises the following steps：
a）Citric acid is divided into two parts by weight, the citric acid of five nitric hydrate bismuths and wherein half is dissolved in dust technology,
Even stirring is made into solution A, ammonium metavanadate and remaining half citric acid is dissolved in distilled water, uniform stirring is made into B solution；
b）By step a）The solution A of gained is uniformly mixed with B solution is configured to C solution, using ammonium hydroxide adjust C solution pH value to
6.2~6.5, continuous heating is stirred to solution turned blue under the conditions of 65~85 DEG C, forms blue solution；
c）To step 2）Peanut shell or melon seed cases are added in the blue solution of gained, stands, treats that peanut shell or melon seed cases are fully inhaled
Receive after surface forms colloid and take out, 24~48h is dried under the conditions of 75~85 DEG C, is calcined under the conditions of being subsequently placed at 500~550 DEG C
3~5h, after natural cooling grinding obtain active particle；
d）By step c）The poly- diethanol of the active particle of gained and 8~10 times of active particle parts by weight is codissolved in 50~300
Form mixed liquor in the distilled water of times active particle parts by weight, mixed liquor it is carried out under the conditions of 75~85 DEG C ultrasound 50~
65min, is then placed in multi-cellular structure filler, continues 55~65min ultrasounds, and taking-up drying obtains special bio-modification and fills out
Material.
Preferably, step d）The multi-cellular structure filler includes but not limited to：Sponge and polyurethane filler；Added
Multi-cellular structure filler and step d）Described in mixed liquor volume ratio be 1：4~5.
Preferably, step 2）The bio-carrier before device is put into, need to through acid or 1~2h of alkali steeping, and
It is any in square, the spherical and cylinder in the range of 1~4cm into size characteristic by being simply machined curing process
A kind of shape.
Preferably, step 3）The raw material of the biology carbon filling material are in rice husk, sawdust, stalk, sawdust and corncob
Any one or a few, under the conditions of raw material are placed in 500~600 DEG C by limit oxygen heating charing in a manner of be pyrolyzed 3~5h.
Preferably, filled out in the degradable biological filler arrangement area, mixed-arrangement area and modification biological carrier arrangement area
The filling rate of material is 10~20%.
Preferably, keep sewage when degradable biological filler arrangement area and the micro- aeration in modification biological carrier arrangement area
Middle dissolved oxygen concentration is 1.5~2.5mg/L.
Preferably, the coupled biological system is integrally controlled using PCL automatic control systems.
What biofilm treated sewage technology on the market used at present is with floating type dump packing and mounted model bullet
Routinely carrier carrys out attached biological film to property filler etc. as matrix, but these biofilm carriers routinely can only be played to be micro-
Biology provides the function of bond area, although being more than getting up early biofilm carrier there are specific surface area, its space that still makes progress, and
According to the agricultural wastes such as rice husk, sawdust, stalk, sawdust and corncob material as degradable carrier, itself is due to it
Biomorph structure, using the teaching of the invention it is possible to provide a three-dimensional porous structure with a large amount of micropores, by being machined into size characteristic 1
After the shape such as square, spherical and cylindrical in the range of~4cm, there are great specific surface area, especially corncob and sawdust
Deng internal capillary is more, is very good loose structure carrier.
In addition, degradable carrier is used as using the agricultural wastes such as rice husk, sawdust, stalk, sawdust and corncob material, moreover it is possible to
Extra carbon source enough is provided when handling low-carbon sewage for microorganism, it is strong with reference to biodegradable fiber carrier slow release carbon source and charcoal
Big absorption property, optimizes the coupled arrangement mode of conventional carrier, biodegradable fiber carrier and biological high-area carbon, with nitrate nitrogen and phosphorus
Hydrochlorate is in the agricultural runoff processing mainly polluted, can fast enriching functional microorganism, obtain high-efficient denitrification and dephosphorization effect, and energy
Effectively control effluent quality.
Degradable biological filler arranges that area and modification biological carrier arrangement area are aerated using micro- aeration mode, can make
Obtaining accompanying, growth biomembrane on carrier, there are the concentration gradient change of dissolved oxygen from surface to inside, surface is aerobic ring
Border, inside are micro-environmental hypoxia, and inside is there are aerobic suspended sludge, and with more easily nitrobacteria growth, biology
The high advantage with microorganism food chain length of amount, synchronous nitration and denitrification is realized under aerobic condition, can largely be removed in decontaminated water
Pollutant, micro- aeration mode ensure that the oxygen content in container is in a kind of best state all the time so that therein micro-
Purification of the biology to water quality pollutant, disposal ability are in peak state, enhance biomembrane to a large amount of pollutants in water quality
Clean-up effect, and micro- aeration can play more outstanding Nitrogen/Phosphorus Removal, go out relative to traditional aeration biofilter BAF
Water COD value is greatly reduced, and water outlet TP contents can also greatly decline, and the total removal rate of TP is more than 85%.
In addition special bio-modification filler also has extremely special property, its main altered contents be a kind of trivalent it is secret from
The alum salts of son, the alum salts of the secret ion of trivalent are a kind of modifying agent with certain light-catalysed performance, it can absorbed
Photoproduction e is generated after visible ray-/h+Electronics pair, photoproduction h generate hydroxyl radical free radical with water molecule reaction of the absorption in Modifiers Surface
And ultra-oxygen anion free radical, ultra-oxygen anion free radical react generation superoxide radical with hydrogen ion again, above-mentioned generation surpasses
Oxygen radical and hydroxyl radical free radical, by the structure of progressive failure organic pollution, make all there is extremely strong redox ability
It is eventually converted into the small-molecule substance such as hydrone and carbon dioxide molecule.On the other hand, itself is as the more micro- of basis material
Pore structure filler is more micropores after the alum salts of the load secret ion of trivalent with the macromolecule carrier filler for enriching loose structure
The small pore passage structure in part of structured packing is blocked, i.e., its load position main as modifying agent is multi-cellular structure filler
Hole, and the position of biofilm development then be multi-cellular structure filler skeleton structure, still may be used after biofilm development is complete
Ensureing the alum salts of the secret ion of trivalent will not be covered by biofilm structure, play good photocatalysis effect.The special life
For thing modified filler using multi-cellular structure filler as basis material, it can keep good integrality under water impact, bear thereon
The modifying agent of load has permanently effective catalytic capability, reusable.
The beneficial effects of the invention are as follows：
1）The beneficial effect of recycling is generated to agricultural wastes material, meets green and healthy environmentally friendly process requirements；
2）During removal of impurities, purification are produced to sewage, poisonous and harmful substance is not produced, meeting green and healthy environmentally friendly technique needs
Ask；
3）Required processing equipment is simple, and use cost is relatively low, and integration manipulation is more convenient, more efficient；
4）Extremely good clean-up effect can be played to the sewage of low-carbon high-nitrogen phosphorus content, the total removal rate of TN, TP are high, in depth
The removal spent in oxidation pond to harmful organic substance is thorough, there is high purification scavenging effect；
5）Micro- aeration is easy to the advantage of nitrobacteria growth, biomass height and microorganism food chain length, is realized under aerobic condition same
Nitration denitrification is walked, can largely remove the pollutant in decontaminated water；
6）The organic pollution that altered contents can promote to be difficult to degrade in sewage is decomposed, is degraded, and converts it into no dirt
Dye or the material that can be degraded again by microorganism, improve microbial degradation efficiency and effect.
Brief description of the drawings
Fig. 1 is the schematic diagram of coupled biological system in the present invention；
In figure, 1 crystallizing field, 2 degradable biological fillers arrangement area, 3 mixed-arrangement areas, 4 modification biological carriers arrangement area, 5 lattice gear,
6 visible light sources, 7 grids.
Embodiment
The technical solution in the embodiment of the present invention is clearly and completely retouched with reference to the embodiment of the present invention and attached drawing
State, it is clear that described embodiment only part of the embodiment of the present invention, rather than whole embodiments.Based on the implementation in the present invention
Example, those of ordinary skill in the art's all other embodiments obtained without making creative work, belongs to
Protection scope of the present invention.
1 is crystallizing field in figure, and 2 arrange area for degradable biological filler, and 3 be mixed-arrangement area, and 4 be modification biological carrier cloth
Area is put, 5 keep off for lattice, and 6 be visible light source, and 7 be grid, and sewage first passes around the progress physics of grid 7 after water inlet inflow and removes
It is miscellaneous, crystallizing field is flowed into, after crystallizing field 1 carries out 0~0.5h precipitations, degradable biological filler arrangement area 2 is imported, in degradable life
The reaction of mixed-arrangement area 3 0.5~2.5h of degraded is imported after 1~2h of reaction degraded is carried out in thing filler arrangement area 2, finally imports and changes
Property bio-carrier arrangement area 4, visible light source 6 effect under carry out 8~12h of advanced treating obtain clear water, four sections shift
It can prevent that carrier is stable and some floating impurities will not shift under 5 effect of Shi Ge gears.
Sewage used is all from rural sewage in embodiment.
Embodiment 1
Special bio-modification filler preparation process comprises the following steps：
a）Citric acid is divided into two parts by weight, the citric acid of five nitric hydrate bismuths and wherein half is dissolved in dust technology,
Even stirring is made into solution A, ammonium metavanadate and remaining half citric acid is dissolved in distilled water, uniform stirring is made into B solution；
b）By step a）The solution A of gained is uniformly mixed with B solution is configured to C solution, using ammonium hydroxide adjust C solution pH value to
6.2, continuous heating is stirred to solution turned blue under the conditions of 65 DEG C, forms blue solution；
c）To step 2）Peanut shell or melon seed cases are added in the blue solution of gained, stands, treats that peanut shell or melon seed cases are fully inhaled
Receive after surface forms colloid and take out, dry 24h under the conditions of 75 DEG C, calcine 3h under the conditions of being subsequently placed at 500 DEG C, after natural cooling
Grinding obtains active particle；
d）By step c）The poly- diethanol of the active particle of gained and 8 times of active particle parts by weight is codissolved in 50 times of active particles
Mixed liquor is formed in the distilled water of parts by weight, mixed liquor carries out ultrasonic 65min under the conditions of 85 DEG C to it, is then placed in block sea
Silk floss, continues 65min ultrasounds, takes out drying and obtains special bio-modification filler.
The preparing raw material of the special bio-modification filler includes the material of following parts by weight：45 part of five nitric hydrate
Bismuth, 60 parts of dust technologies, 80 parts of citric acids, 13 parts of ammonium metavanadates, 45 parts of distilled water.
Embodiment 2
Special bio-modification filler preparation process comprises the following steps：
a）Citric acid is divided into two parts by weight, the citric acid of five nitric hydrate bismuths and wherein half is dissolved in dust technology,
Even stirring is made into solution A, ammonium metavanadate and remaining half citric acid is dissolved in distilled water, uniform stirring is made into B solution；
b）By step a）The solution A of gained is uniformly mixed with B solution is configured to C solution, using ammonium hydroxide adjust C solution pH value to
6.5, continuous heating is stirred to solution turned blue under the conditions of 85 DEG C, forms blue solution；
c）To step 2）Peanut shell or melon seed cases are added in the blue solution of gained, stands, treats that peanut shell or melon seed cases are fully inhaled
Receive after surface forms colloid and take out, dry 48h under the conditions of 85 DEG C, calcine 5h under the conditions of being subsequently placed at 550 DEG C, after natural cooling
Grinding obtains active particle；
d）By step c）The poly- diethanol of the active particle of gained and 10 times of active particle parts by weight is codissolved in 300 times of activity
Mixed liquor is formed in the distilled water of grain parts by weight, mixed liquor carries out ultrasonic 50min to it under the conditions of 75 DEG C, then puts polyurethane
Filler, continues 55min ultrasounds, takes out drying and obtains special bio-modification filler.
The preparing raw material of the special bio-modification filler includes the material of following parts by weight：50 part of five nitric hydrate
Bismuth, 65 parts of dust technologies, 75 parts of citric acids, 10 parts of ammonium metavanadates, 50 parts of distilled water.
Embodiment 3
Special bio-modification filler preparation process comprises the following steps：
a）Citric acid is divided into two parts by weight, the citric acid of five nitric hydrate bismuths and wherein half is dissolved in dust technology,
Even stirring is made into solution A, ammonium metavanadate and remaining half citric acid is dissolved in distilled water, uniform stirring is made into B solution；
b）By step a）The solution A of gained is uniformly mixed with B solution is configured to C solution, using ammonium hydroxide adjust C solution pH value to
6.5, continuous heating is stirred to solution turned blue under the conditions of 75 DEG C, forms blue solution；
c）To step 2）Peanut shell or melon seed cases are added in the blue solution of gained, stands, treats that peanut shell or melon seed cases are fully inhaled
Receive after surface forms colloid and take out, dry 36h under the conditions of 80 DEG C, calcine 5h under the conditions of being subsequently placed at 550 DEG C, after natural cooling
Grinding obtains active particle；
d）By step c）The poly- diethanol of the active particle of gained and 10 times of active particle parts by weight is codissolved in 300 times of activity
Mixed liquor is formed in the distilled water of grain parts by weight, mixed liquor carries out ultrasonic 60min to it under the conditions of 80 DEG C, is then placed in bulk
Sponge, continues 60min ultrasounds, takes out drying and obtains special bio-modification filler.
The preparing raw material of the special bio-modification filler includes the material of following parts by weight：50 part of five nitric hydrate
Bismuth, 60 parts of dust technologies, 80 parts of citric acids, 10 parts of ammonium metavanadates, 50 parts of distilled water.
Embodiment 4
A kind of synchronous coupled biological treatment process for removing agricultural runoff nitrogen phosphorus, the treatment process comprise the following steps：
1）Sewage is imported from coupled biological system water inlet, coupled biological system is divided into totally four area of the first to the 4th area, sewage
The firstth area of coupled biological system is initially entered, the firstth area is crystallizing field, and deposition 0h is carried out in crystallizing field；
2）Will be via step 1）The post-depositional sewage imports the secondth area of coupled biological system, and the secondth area is degradable biological
Filler arranges area, and degradable biological filler arrangement is disposed with bio-carrier in area, is arranged in degradable biological filler in area
React 1h；
3）Will be in step 2）Sewage after being reacted in the degradable biological filler arrangement area imports the 3rd of coupled biological system
Area, the 3rd area are mixed-arrangement area, mixed-arrangement routine carrier filler and biological carbon filling material in mixed-arrangement area, in mixed-arrangement
2.5h is reacted in area；
4）Will be in step 3）Sewage after being reacted in the mixed-arrangement area imports the 4th area of coupled biological system, and the 4th area is
Modification biological carrier arranges area, and modification biological carrier arrangement is arranged special bio-modification filler in area, irradiated in visible light source
Lower reaction 12h, exports to obtain clear water from water outlet；
The filling rate of filler is 10% in degradable biological filler arrangement area, mixed-arrangement area and modification biological carrier arrangement area；
Wherein step 1）The water inlet is equipped with mechanical grille, step 2）The bio-carrier is rice husk, through acid dip
1h, and by be simply machined curing process into size characteristic square in the range of 1cm, step 3）In conventional carrier
Filler is floating type dump packing, step 3）The raw material of the biological carbon filling material are rice husk and corncob, and raw material are put
3h is pyrolyzed in a manner of limiting oxygen heating charing under the conditions of 500 DEG C, wherein degradable biological filler arrangement area and modification biological carries
Body arrangement area is aerated using micro- aeration mode, and dissolved oxygen concentration 1.5mg/L, crystallizing field is with mixed-arrangement area without exposing
Gas；
Special bio-modification filler used in the present embodiment is obtained by embodiment 1.
Embodiment 5
A kind of synchronous coupled biological treatment process for removing agricultural runoff nitrogen phosphorus, the treatment process comprise the following steps：
1）Sewage is imported from coupled biological system water inlet, coupled biological system is divided into totally four area of the first to the 4th area, sewage
The firstth area of coupled biological system is initially entered, the firstth area is crystallizing field, and deposition 0.5h is carried out in crystallizing field；
2）Will be via step 1）The post-depositional sewage imports the secondth area of coupled biological system, and the secondth area is degradable biological
Filler arranges area, and degradable biological filler arrangement is disposed with bio-carrier in area, is arranged in degradable biological filler in area
React 2h；
3）Will be in step 2）Sewage after being reacted in the degradable biological filler arrangement area imports the 3rd of coupled biological system
Area, the 3rd area are mixed-arrangement area, mixed-arrangement routine carrier filler and biological carbon filling material in mixed-arrangement area, in mixed-arrangement
0.5h is reacted in area；
4）Will be in step 3）Sewage after being reacted in the mixed-arrangement area imports the 4th area of coupled biological system, and the 4th area is
Modification biological carrier arranges area, and modification biological carrier arrangement is arranged special bio-modification filler in area, irradiated in visible light source
Lower reaction 8h, exports to obtain clear water from water outlet；
The filling rate of filler is 20% in degradable biological filler arrangement area, mixed-arrangement area and modification biological carrier arrangement area；
Wherein step 1）The water inlet is equipped with artificial grid, step 2）The bio-carrier is sawdust, through alkali steeping
1h, and by be simply machined curing process into size characteristic spherical in the range of 4cm, step 3）In conventional carrier
Filler is mounted model elastic filler, step 3）The raw material of the biological carbon filling material are sawdust and stalk, and raw material are placed in
5h, wherein degradable biological filler arrangement area and modification biological carrier are pyrolyzed under the conditions of 600 DEG C in a manner of limiting oxygen heating charing
Arrangement area is aerated using micro- aeration mode, dissolved oxygen concentration 2.5mg/L, and crystallizing field is with mixed-arrangement area without exposing
Gas；
Special bio-modification filler used in the present embodiment is obtained by embodiment 2.
Embodiment 6
A kind of synchronous coupled biological treatment process for removing agricultural runoff nitrogen phosphorus, the treatment process comprise the following steps：
1）Sewage is imported from coupled biological system water inlet, coupled biological system is divided into totally four area of the first to the 4th area, sewage
The firstth area of coupled biological system is initially entered, the firstth area is crystallizing field, and deposition 0.5h is carried out in crystallizing field；
2）Will be via step 1）The post-depositional sewage imports the secondth area of coupled biological system, and the secondth area is degradable biological
Filler arranges area, and degradable biological filler arrangement is disposed with bio-carrier in area, is arranged in degradable biological filler in area
React 2h；
3）Will be in step 2）Sewage after being reacted in the degradable biological filler arrangement area imports the 3rd of coupled biological system
Area, the 3rd area are mixed-arrangement area, mixed-arrangement routine carrier filler and biological carbon filling material in mixed-arrangement area, in mixed-arrangement
2.5h is reacted in area；
4）Will be in step 3）Sewage after being reacted in the mixed-arrangement area imports the 4th area of coupled biological system, and the 4th area is
Modification biological carrier arranges area, and modification biological carrier arrangement is arranged special bio-modification filler in area, irradiated in visible light source
Lower reaction 8h, exports to obtain clear water from water outlet；
The filling rate of filler is 15% in degradable biological filler arrangement area, mixed-arrangement area and modification biological carrier arrangement area；
Wherein step 1）The water inlet is equipped with mechanical grille, step 2）The bio-carrier is stalk, through acid dip
2h, and by being simply machined cylinder of the curing process into size characteristic in the range of 2cm, step 3）In conventional load
Body filler is floating type dump packing, step 3）The raw material of the biological carbon filling material are sawdust and corncob, by raw material
3h, wherein degradable biological filler arrangement area and modification biological are pyrolyzed under the conditions of being placed in 550 DEG C in a manner of limiting oxygen heating charing
Carrier arrangement area is aerated using micro- aeration mode, dissolved oxygen concentration 2.2mg/L, crystallizing field and mixed-arrangement area without
Aeration；
Special bio-modification filler used in the present embodiment is obtained by embodiment 2.
Embodiment 7
A kind of synchronous coupled biological treatment process for removing agricultural runoff nitrogen phosphorus, the treatment process comprise the following steps：
1）Sewage is imported from coupled biological system water inlet, coupled biological system is divided into totally four area of the first to the 4th area, sewage
The firstth area of coupled biological system is initially entered, the firstth area is crystallizing field, and deposition 0.5h is carried out in crystallizing field；
2）Will be via step 1）The post-depositional sewage imports the secondth area of coupled biological system, and the secondth area is degradable biological
Filler arranges area, and degradable biological filler arrangement is disposed with bio-carrier in area, is arranged in degradable biological filler in area
React 2h；
3）Will be in step 2）Sewage after being reacted in the degradable biological filler arrangement area imports the 3rd of coupled biological system
Area, the 3rd area are mixed-arrangement area, mixed-arrangement routine carrier filler and biological carbon filling material in mixed-arrangement area, in mixed-arrangement
2.5h is reacted in area；
4）Will be in step 3）Sewage after being reacted in the mixed-arrangement area imports the 4th area of coupled biological system, and the 4th area is
Modification biological carrier arranges area, and modification biological carrier arrangement is arranged special bio-modification filler in area, irradiated in visible light source
Lower reaction 8h, exports to obtain clear water from water outlet；
The filling rate of filler is 15% in degradable biological filler arrangement area, mixed-arrangement area and modification biological carrier arrangement area；
Wherein step 1）The water inlet is equipped with mechanical grille, step 2）The bio-carrier is corncob, is soaked through alkali
Stain 2h, and by be simply machined curing process into size characteristic square in the range of 3cm, step 3）In conventional load
Body filler is mounted model elastic filler, step 3）The raw material of the biological carbon filling material are stalk, rice husk and corncob, by original
Material is pyrolyzed 5h, wherein degradable biological filler arrangement area and modification under the conditions of being placed in 550 DEG C in a manner of limiting oxygen heating charing
Bio-carrier arrangement area is aerated using micro- aeration mode, and dissolved oxygen concentration 2.5mg/L, crystallizing field and mixed-arrangement area are not
It is aerated；
Special bio-modification filler used in the present embodiment is obtained by embodiment 3.
The water quality that clear water reserviors are imported after the processing of embodiment 4~7 is detected respectively, obtains following testing result：
1）Water outlet COD is detected：COD mean concentrations in 4 water outlet of embodiment are 16.37mg/L, and the average removal rate of COD is
88.05%, the COD mean concentrations in 5 water outlet of embodiment are 16.76mg/L, and the average removal rate of COD is 87.77%, embodiment 6
COD mean concentrations in water outlet are 17.01mg/L, and the average removal rate of COD is 87.58%, and the COD in 7 water outlet of embodiment is averaged
Concentration is 16.52mg/L, and the average removal rate of COD is 87.94%；
2）Water outlet NH3- N is detected：NH in 4 water outlet of embodiment3- N mean concentrations are 2.14mg/L, NH3The average removal rate of-N is
88.47%, the NH in 5 water outlet of embodiment3- N mean concentrations are 2.09mg/L, NH3The average removal rate of-N is 88.70%, embodiment
NH in 6 water outlets3- N mean concentrations are 2.17mg/L, NH3The average removal rate of-N is 88.27%, the NH in 7 water outlet of embodiment3-
N mean concentrations are 2.31mg/L, NH3The average removal rate of-N is 87.51%；
3）Water outlet TN is detected：TN mean concentrations in 4 water outlet of embodiment are 6.09mg/L, and the average removal rate of TN is 75.14%,
TN mean concentrations in 5 water outlet of embodiment are 6.14mg/L, and the average removal rate of TN is 74.94%, the TN in 6 water outlet of embodiment
Mean concentration is 6.21mg/L, and the average removal rate of TN is 74.65%, and the TN mean concentrations in 7 water outlet of embodiment are 6.17mg/
The average removal rate of L, TN are 74.82%；
4）Water outlet TP is detected：TP mean concentrations in 4 water outlet of embodiment are 0.89mg/L, and the average removal rate of TP is 72.14%,
TP mean concentrations in 5 water outlet of embodiment are 0.91mg/L, and the average removal rate of TP is 71.56%, the TP in 6 water outlet of embodiment
Mean concentration is 0.86mg/L, and the average removal rate of TP is 73.12%, and the TP mean concentrations in 7 water outlet of embodiment are 0.81mg/
The average removal rate of L, TP are 74.69%；
5）Water outlet BOD is detected：BOD mean concentrations in 4 water outlet of embodiment are 4.06mg/L, and the average removal rate of BOD is
85.24%, the BOD mean concentrations in 5 water outlet of embodiment are 4.11mg/L, and the average removal rate of BOD is 85.06%, and embodiment 6 goes out
BOD mean concentrations in water are 4.01mg/L, and the average removal rate of BOD is 85.42%, and the BOD in 7 water outlet of embodiment is average dense
Spend for 4.19mg/L, the average removal rate of BOD is 84.76%.
The embodiment detected value is the average value of ten measurements, and conclusion availability is higher.
A kind of synchronous coupled biological for removing agricultural runoff nitrogen phosphorus of the present invention, which is can be seen that, from above testing result handles work
Skill has good water treatment efficiency.
Claims (9)
1. a kind of synchronous coupled biological treatment process for removing agricultural runoff nitrogen phosphorus, it is characterised in that the treatment process includes
Following steps：
1）Sewage is imported from coupled biological system water inlet, coupled biological system is divided into totally four area of the first to the 4th area, sewage
The firstth area of coupled biological system is initially entered, the firstth area is crystallizing field, and 0~0.5h of deposition is carried out in crystallizing field；
2）Will be via step 1）The post-depositional sewage imports the secondth area of coupled biological system, and the secondth area is degradable biological
Filler arranges area, and degradable biological filler arrangement is disposed with bio-carrier in area, is arranged in degradable biological filler in area
React 1~2h；
3）Will be in step 2）Sewage after being reacted in the degradable biological filler arrangement area imports the 3rd of coupled biological system
Area, the 3rd area are mixed-arrangement area, mixed-arrangement routine carrier filler and biological carbon filling material in mixed-arrangement area, in mixed-arrangement
0.5~2.5h is reacted in area；
4）Will be in step 3）Sewage after being reacted in the mixed-arrangement area imports the 4th area of coupled biological system, and the 4th area is
Modification biological carrier arranges area, and modification biological carrier arrangement is arranged special bio-modification filler in area, irradiated in visible light source
8~12h of lower reaction, exports to obtain clear water from water outlet；
Wherein step 1）The water inlet is equipped with grid, and grid is any one in mechanical grille and artificial grid, step
2）The bio-carrier be rice husk, sawdust, stalk, sawdust and corncob in any one, step 3）In conventional load
Body filler be floating type dump packing and mounted model elastic filler in any one, wherein degradable biological filler arrangement area and
Modification biological carrier arrangement area is aerated using micro- aeration mode, and crystallizing field and mixed-arrangement area are described heavy without aeration
Ji Qu tops are equipped with two lattice and keep off, and degradable biological filler arrangement area and mixed-arrangement area top are respectively provided with a lattice gear.
2. a kind of synchronous coupled biological treatment process for removing agricultural runoff nitrogen phosphorus according to claim 1, its feature exist
In step 4）The preparing raw material of the special bio-modification filler includes the material of following parts by weight：45~50 part of five hydration
Bismuth nitrate, 60~65 parts of dust technologies, 75~80 parts of citric acids, 10~13 parts of ammonium metavanadates, 45~50 parts of distilled water.
3. a kind of synchronous coupled biological treatment process for removing agricultural runoff nitrogen phosphorus according to claim 2, its feature exist
In the special bio-modification filler preparation process comprises the following steps：
a）Citric acid is divided into two parts by weight, the citric acid of five nitric hydrate bismuths and wherein half is dissolved in dust technology,
Even stirring is made into solution A, ammonium metavanadate and remaining half citric acid is dissolved in distilled water, uniform stirring is made into B solution；
b）By step a）The solution A of gained is uniformly mixed with B solution is configured to C solution, using ammonium hydroxide adjust C solution pH value to
6.2~6.5, continuous heating is stirred to solution turned blue under the conditions of 65~85 DEG C, forms blue solution；
c）To step 2）Peanut shell or melon seed cases are added in the blue solution of gained, stands, treats that peanut shell or melon seed cases are fully inhaled
Receive after surface forms colloid and take out, 24~48h is dried under the conditions of 75~85 DEG C, is calcined under the conditions of being subsequently placed at 500~550 DEG C
3~5h, after natural cooling grinding obtain active particle；
d）By step c）The poly- diethanol of the active particle of gained and 8~10 times of active particle parts by weight is codissolved in 50~300
Form mixed liquor in the distilled water of times active particle parts by weight, mixed liquor it is carried out under the conditions of 75~85 DEG C ultrasound 50~
65min, is then placed in multi-cellular structure filler, continues 55~65min ultrasounds, and taking-up drying obtains special bio-modification and fills out
Material.
4. a kind of synchronous coupled biological treatment process for removing agricultural runoff nitrogen phosphorus according to claim 3, its feature exist
In step d）The multi-cellular structure filler includes but not limited to：Sponge and polyurethane filler；Added multi-cellular structure filler
With step d）Described in mixed liquor volume ratio be 1：4~5.
5. a kind of synchronous coupled biological treatment process for removing agricultural runoff nitrogen phosphorus according to claim 1,2 or 3, it is special
Sign is, step 2）The bio-carrier, need to be through acid or 1~2h of alkali steeping, and by simple before device is put into
It is machined any one shape of curing process into size characteristic in square, the spherical and cylinder in the range of 1~4cm.
6. a kind of synchronous coupled biological treatment process for removing agricultural runoff nitrogen phosphorus according to claim 1,2 or 3, it is special
Sign is, step 3）The raw material of the biology carbon filling material are any one in rice husk, sawdust, stalk, sawdust and corncob
Or it is several, under the conditions of raw material are placed in 500~600 DEG C 3~5h is pyrolyzed in a manner of limiting oxygen heating charing.
7. a kind of synchronous coupled biological treatment process for removing agricultural runoff nitrogen phosphorus according to claim 1,2 or 3, it is special
Sign is that degradable biological filler arrangement area, mixed-arrangement area and the modification biological carrier arrange the filling rate of filler in area
For 10~20%.
8. a kind of synchronous coupled biological treatment process for removing agricultural runoff nitrogen phosphorus according to claim 1,2 or 3, it is special
Sign is, when micro- aeration in the degradable biological filler arrangement area and modification biological carrier arrangement area keeps dirty oxygen in water dense
Spend for 1.5~2.5mg/L.
9. a kind of synchronous coupled biological treatment process for removing agricultural runoff nitrogen phosphorus according to claim 1,2 or 3, it is special
Sign is that the coupled biological system is integrally controlled using PCL automatic control systems.
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