CN110040907A - The ecosystem of nitrogen phosphorus in a kind of removal aquiculture waste water - Google Patents
The ecosystem of nitrogen phosphorus in a kind of removal aquiculture waste water Download PDFInfo
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- CN110040907A CN110040907A CN201910318093.5A CN201910318093A CN110040907A CN 110040907 A CN110040907 A CN 110040907A CN 201910318093 A CN201910318093 A CN 201910318093A CN 110040907 A CN110040907 A CN 110040907A
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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
- C02F3/30—Aerobic and anaerobic processes
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
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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
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Abstract
The invention discloses a kind of ecosystems of nitrogen phosphorus in removal aquiculture waste water, including pretreatment unit, O-A-O processing unit and water storage sedimentation basin；The pretreatment unit is connected by O-A-O processing unit with water storage sedimentation basin；The pretreatment unit, including water plant area, the water district in water plant area and the separation layer for being separated between water plant area and water district；The O-A-O processing unit, including buffering adsorption zone, aerobic zone I, braiding channel, anaerobic zone, buffering dispersion canal and aerobic zone II；The water storage sedimentation basin is mainly used for the absorption, savings and precipitating for the aquiculture waste water crossed through O-A-O processing unit processes.Its advantage: effectively removing nitrogen and phosphorus pollutants in aquiculture waste water, reduces breeding wastewater receiving water body eutrophic extent and risk；Suitable for long-time, the wastewater treatment of big yield；Certain economic value can be created.
Description
Technical field
The invention belongs to environment protection fields, and in particular to a kind of ecosystem for removing nitrogen phosphorus in aquiculture waste water.
Background technique
Now with the continuous expansion of China's centralization cultivation scale, feed uses in large quantities, resulting metabolin,
The inorganic matters such as organic matter and ammonia nitrogen become new pollution sources, wherein nitrogen phosphorus more so, however cultivating wastewater purification measure but not with
On, therefore the waste water containing these pollution sources is directly discharged to neighbouring river in the case where unprocessed, seriously destroys
River ecological.
For the base of national large-scale farming Macrobrachium rosenbergii, due to water is big, processing cost is high etc., breeding wastewater
Essentially directly be discharged into neighbouring river, to cause the eutrophication of neighbouring river water, especially summer, river algae because
This mass propagation leads to water body greening.Present invention combination local conditions, using physics, biological and chemical method to cultivation
The pollutants such as the nitrogen phosphorus in waste water carry out specific aim processing, and concentration of nitrogen and phosphorus is effectively reduced in water after processing.
Summary of the invention
For the excessively high problem of nitrogen and phosphorus content in aquiculture waste water, the present invention proposes nitrogen in a kind of removal aquiculture waste water
The ecosystem of phosphorus.Its object is to effectively control concentration of nitrogen and phosphorus in aquiculture waste water, it is rich to reduce breeding wastewater receiving water body
Nutrient laden degree and risk；Suitable for long-time, the wastewater treatment of big yield.
The present invention is achieved through the following technical solutions, a kind of ecosystem removing nitrogen phosphorus in aquiculture waste water,
Including pretreatment unit, O-A-O processing unit and water storage sedimentation basin；The pretreatment unit by O-A-O processing unit with
Water storage sedimentation basin is connected；
The pretreatment unit including water plant area, the water district in water plant area and is used for water plant area
The separation layer separated between water district；
The O-A-O processing unit, including buffering adsorption zone, aerobic zone I, braiding channel, anaerobic zone, buffering dispersion canal and aerobic
Area II；
The buffering adsorption zone, including be located at water district in concrete sump, for by the aquiculture waste water in water district turn
Water pump, buffering absorption canal and the reinforced concrete pipe for being connected to the gentle attached canal of suction of concrete sump moved on in concrete sump；
The water storage sedimentation basin is mainly used for the absorption for the aquiculture waste water crossed through O-A-O processing unit processes, saves and sink
It forms sediment.
As a kind of a kind of prioritization scheme for removing the ecosystem of nitrogen phosphorus in aquiculture waste water of the present invention: institute
Stating separation layer is hollow rectangular enclosing wall, inside be successively arranged gravel layer and zeolite layer from outside to inside, and hollow cuboid encloses
It is wire gauze circumference on the outside of wall inside is surrounded by the braiding networking of several bamboo poles, and centre is hollow structure；
With non-woven geotextile interval between the gravel layer and zeolite layer；
The zeolite layer is made of modified zeolite；
The modified zeolite the preparation method is as follows: select 60 ~ 150 mesh of partial size zeolite, be put by solid-liquid volume ratio 1:20
Mechanical stirring 1h in 0.4mol/L sodium chloride solution, washes with water later to neutrality, and being placed in temperature is to dry in 70 DEG C of drying boxes,
Obtain modified zeolite.
As a kind of a kind of prioritization scheme for removing the ecosystem of nitrogen phosphorus in aquiculture waste water of the present invention: institute
The suction side for stating water pump is located in water district, and the end of the suction side is equipped with anti-mud-sucking device, the anti-mud-sucking device be with
Reinforcing bar is skeleton, and surrounding covers the cylindrical body of nylon wire.
As a kind of a kind of prioritization scheme for removing the ecosystem of nitrogen phosphorus in aquiculture waste water of the present invention: institute
It states concrete sump and is divided into filtering ponds and common pond, wherein the water outlet of the water pump is located in filtering ponds；
Filler I is filled in the filtering ponds, which is modified zeolite and HFO modification bamboo charcoal, and 1:1 is mixed by volume for the two
It closes；
The modified zeolite preparation method is as follows: selecting the zeolite of 60 ~ 150 mesh of partial size, is put by solid-liquid volume ratio 1:20
Mechanical stirring 1h in 0.4mol/L sodium chloride solution, washes with water later to neutrality, and being placed in temperature is to dry in 70 DEG C of drying boxes,
Obtain modified zeolite.
The HFO modification bamboo charcoal preparation method is as follows: the particle bamboo charcoal that partial size after drying is 10-20 mesh is added to 1g/
ML'sIn solution, room temperature lower sealing is placed for 24 hours after mixing evenly, is then rotated and is steamed under the conditions of 60 DEG C
12h is cured in hair instrument, then washed product is freeze-dried for 24 hours at room temperature to neutrality repeatedly with deionized water；
Cylindrical body stuffing box is placed in the reinforced concrete pipe, the cylindrical body stuffing box is using reinforcing bar as skeleton, surface covering
Fine and closely woven nylon wire, and inside is filled with the modified medical stone of Rare Earth Lanthanum；
The modified medical stone of the Rare Earth Lanthanum the preparation method is as follows: first medical stone is crushed, cleaned with deionized water, wait rush
It is filtered when wash water is more clear, obtains filter cake, filter cake crosses 200 meshes, obtain natural medical stone sample in 105 DEG C of drying, grinding；Match
The hydrochloric acid solution that concentration is 1mol/L is set, adds natural medical stone sample by solid-liquid volume ratio 1:10, at room temperature stir process 2h
After pump filtrate, filter cake is washed with deionized to no cl-Detection dries filter cake at 105 DEG C, and ground 200 mesh obtains sour
Activate medical stone；The La that subsequent configuration quality score is 0.5%3+Solution adjusts pH to 10 with 1mol/L ammonium hydroxide, by solid-liquid volume
Acid activation medical stone is added than 1:50, impregnates 16h at room temperature, filter cake is dried in 105 DEG C after filtering, is roasted 1h at 450 DEG C, is ground
Honed 200 mesh is put into drier and is cooled to room temperature as the modified medical stone of Rare Earth Lanthanum；
Buffering absorption canal cross section be it is trapezoidal, inside is covered with filler, and filler is that modified Du sharpens shell, vermiculite and wood powder biology
Charcoal, 1:1:1 is mixed three by volume；
Modified Du's whetstone shell sharpens shell deionized water repeated flushing the preparation method is as follows: shutting out, mistake after grinding after 105 DEG C of drying
100 meshes, then 1h is pyrolyzed at 650 DEG C in electrolytic furnace using limit oxygen heating charring, modified Du is made and sharpens shell；
The charring the preparation method is as follows: the limit oxygen of wood powder made of timber heats up of the wood powder is at 500 DEG C in electrolytic furnace
It is pyrolyzed 3h, sieves with 100 mesh sieve, can be prepared by after natural cooling；
The vermiculite the preparation method is as follows: vermiculite deionized water repeated flushing, sieved with 100 mesh sieve after being ground after 105 DEG C of drying,
It can be prepared by.
As a kind of a kind of prioritization scheme for removing the ecosystem of nitrogen phosphorus in aquiculture waste water of the present invention: institute
It states in aerobic zone I and aerobic zone II and plants agricultural economy crop.
As a kind of a kind of prioritization scheme for removing the ecosystem of nitrogen phosphorus in aquiculture waste water of the present invention: water
Aquaculture waste enters anaerobic zone by the braiding channel, to flow out to buffering dispersion canal；
The braiding channel cross section is sunken arcs shape, and middle part high-land, both ends topography is low, ratio of slope 1:500；
The anaerobic zone is that modified zeolite is wrapped up with PVA film, and inside is inserted into several and is dispersed respectively with braiding channel and buffering
The pvc pipe of canal connection；The buffering dispersion canal is equipped with cobblestone；
The grail wrapped up with non-woven geotextile is equipped between the braiding channel and anaerobic zone；
The modified zeolite the preparation method is as follows: select 60 ~ 150 mesh of partial size zeolite, be put by solid-liquid volume ratio 1:20
Mechanical stirring 1h in 0.4mol/L sodium chloride solution, washes with water later to neutrality, and being placed in temperature is to dry in 70 DEG C of drying boxes,
Obtain modified zeolite.
As a kind of a kind of prioritization scheme for removing the ecosystem of nitrogen phosphorus in aquiculture waste water of the present invention:
The aerobic zone II is equipped with the band that catchments with water storage sedimentation basin connecting place；The band that catchments is formed by stone accumulation to be set every 200cm
The notch that a width is about 5cm is set, for converging water flow, water is formed and falls, facilitate the processing to waste water.
As a kind of a kind of prioritization scheme for removing the ecosystem of nitrogen phosphorus in aquiculture waste water of the present invention:
The buffering absorption canal and I connecting place of aerobic zone are equipped with the infiltration ridge, and the infiltration ridge is for buffering water flow and avoiding filler III
Enter aerobic zone I with water flow.
For reply long-time, the aquiculture waste water discharge of big yield, aerobic zone I, anaerobic zone, aerobic zone II can be expanded
Area, three's size is equal, and each length and width may be designed as 60m × 1.2m.
To effectively remove the pollutants such as nitrogen phosphorus in aquiculture waste water, first is that being about in one length and width of cultivation side of a pond setting
The water plant area of 60m × 4m can reduce concentration of nitrogen and phosphorus in waste water at source；Second is that effectively being dropped with O-A-O processing method
Nitrogen and phosphorus content in low waste water；Third is that water storage sedimentation basin, breeding wastewater carries out 2-3h precipitation adsorption in pond, handles three times through this,
Concentration of nitrogen and phosphorus in waste water can be effectively removed.
Advantages of the present invention: 1. are suitable for the aquiculture waste water processing of long-time, big yield；2. effectively removing aquatic products to support
Nitrogen and phosphorus pollutants in waste water are grown, breeding wastewater receiving water body eutrophic extent and risk are reduced；3. apparatus structure is simple, cost
It is cheap, certain economic value can be created.
Detailed description of the invention
Fig. 1 is floor map of the present invention；
Fig. 2 is plane partial enlargement diagram in Fig. 1；
Fig. 3 is the cross section view of Fig. 1；
Fig. 4 is partial enlarged view in Fig. 3；
Fig. 5 is braiding channel, anaerobic zone and buffering dispersion canal connection schematic diagram；
In figure: 1- water plant area, 2- gravel layer, 3- zeolite layer, the anti-mud-sucking device of 4-, 5- water plant, 6- water pump, 7- buffering
Dispersion canal, 8- filtering ponds, the common pond 9-, 10- filler II, 11- road, 12- reinforced concrete pipe, 13- filler III, 14- permeate the ridge,
The aerobic zone 15- I, 16- braiding channel, 17- grail, 18- catchment band, 19- water storage sedimentation basin, 20- buffering absorption canal, 21- coagulation
Tu Chi, 22- filler I, 23-PVC pipe, 24- cobblestone, 25-PVA film, the aerobic zone 26- II, 27- separation layer, the water district 28-,
The anaerobic zone 29-.
Specific embodiment
Below with reference to embodiment, the present invention will be further described.It should be noted that embodiment is only of the invention as implementing
With reference to use, those skilled in the art can be improved further as the case may be, not depart from essence protection of the invention
Range the case where, still fall within protection scope of the present invention.
Embodiment 1
Referring to Fig.1, shown in Fig. 2, Fig. 3 and Fig. 4, a kind of ecosystem removing nitrogen phosphorus in aquiculture waste water, including pretreatment
Unit, O-A-O processing unit and water storage sedimentation basin；The pretreatment unit passes through O-A-O processing unit and water storage sedimentation basin
It is connected；
The pretreatment unit, water district 28 including water plant area 1, in water plant area 1 and is used for aquatic plant
The separation layer 27 separated between object area 1 and water district 28；
The O-A-O processing unit, including buffering adsorption zone, aerobic zone I 15, braiding channel 16, anaerobic zone 29, buffering dispersion canal 7
And aerobic zone II 26；
The buffering adsorption zone, including be located in water district 28 concrete sump 21, for by the aquaculture in water district 28
Water pump 6 that waste water is transferred in concrete sump 21, buffering absorption canal 20 and for being connected to the gentle attached canal of suction of concrete sump 21
20 reinforced concrete pipe 12；
The water storage sedimentation basin 19 be mainly used for the aquiculture waste water crossed through O-A-O processing unit processes absorption, savings and
Precipitating.
Specifically, water plant area 1 is designed and sized to 60m × 4m, and water is planted in the inside in water plant area 1 and water district 28
Plant 5, such as the stem or leaf of cattail, lotus, cattail, black algae；Can effectively it contain from the concentration for reducing nitrogen phosphorus in aquiculture waste water on source
Amount, reduces the difficulty of subsequent processing.
The separation layer 27 be hollow rectangular enclosing wall, inside be successively arranged gravel layer 2 and zeolite layer 3 from outside to inside,
And hollow rectangular enclosing wall outside is wire gauze circumference inside is surrounded by the braiding networking of several bamboo poles, and centre is hollow knot
Structure；
With non-woven geotextile interval between the gravel layer 2 and zeolite layer 3；
The modified zeolite the preparation method is as follows: select 60 ~ 150 mesh of partial size zeolite, be put by solid-liquid volume ratio 1:20
Mechanical stirring 1h in 0.4mol/L sodium chloride solution, washes with water later to neutrality, and being placed in temperature is to dry in 70 DEG C of drying boxes,
Obtain modified zeolite.Above-mentioned solid-liquid refer respectively to zeolite (Gu) and sodium chloride solution (liquid).
Specifically, the outside wire netting in hollow cuboid to inside bamboo pole braiding networking distance between the two is
24cm；Water district 28, depth are conducive to the water intaking of water pump 6, plantation in water district 28 compared with the mean depth for being deeper than the aquaculture pool
Water plant 5, such as the stem or leaf of cattail, lotus, cattail, black algae.
The suction side of the water pump 6 is located in water district 28, and the end of the suction side is equipped with anti-mud-sucking device 4, described
Anti- mud-sucking device 4 is using reinforcing bar as skeleton, and surrounding covers the cylindrical body of nylon wire.
Specifically, the cylindrical body of anti-mud-sucking device 4 can be substituted for the rotary table that basal diameter is greater than suction side, surrounding covering
Nylon wire can avoid water pump for mud and bring concrete sump 21 into, increases the work load of later process device.
The O-A-O processing unit, being will be by pretreatment unit treated aquiculture waste water followed by buffering
Adsorption zone, aerobic zone I 15, braiding channel 16, anaerobic zone 29, buffering dispersion canal 7 and aerobic zone II 26；
The concrete sump 21 divides for filtering ponds 8 and common pond 9, wherein the water outlet of the water pump 6 is located in filtering ponds 8；
It is filled with filler I 22 in the filtering ponds 8, which is modified zeolite and HFO modification bamboo charcoal, and the two is by volume
1:1 is mixed；
The modified zeolite preparation method is as follows: selecting the zeolite of 60 ~ 150 mesh of partial size, is put by solid-liquid volume ratio 1:20
Mechanical stirring 1h in 0.4mol/L sodium chloride solution, washes with water later to neutrality, and being placed in temperature is to dry in 70 DEG C of drying boxes,
Obtain modified zeolite.Above-mentioned solid-liquid refer respectively to zeolite (Gu) and sodium chloride solution (liquid).
The HFO modification bamboo charcoal preparation method is as follows: the particle bamboo charcoal that partial size after drying is 10-20 mesh is added to 1g/
In the solution of mL, room temperature lower sealing is placed for 24 hours after mixing evenly, then cures 12h in Rotary Evaporators under the conditions of 60 DEG C, then
With deionized water, washed product is freeze-dried for 24 hours at room temperature to neutrality repeatedly；
Cylindrical body stuffing box is placed in the reinforced concrete pipe 12, the cylindrical body stuffing box using reinforcing bar as skeleton, cover by surface
Fine and closely woven nylon wire is covered, and inside is filled with the modified medical stone of Rare Earth Lanthanum；
The modified medical stone of the Rare Earth Lanthanum the preparation method is as follows: first medical stone is crushed, cleaned with deionized water, wait rush
It is filtered when wash water is more clear, obtains filter cake, filter cake crosses 200 meshes, obtain natural medical stone sample in 105 DEG C of drying, grinding；Match
The hydrochloric acid solution that concentration is 1mol/L is set, adding natural medical stone sample by solid-liquid volume ratio 1:10, (solid-liquid is distinguished in the part
It refers to natural medical stone sample (Gu) and hydrochloric acid solution (liquid)), pumps filtrate after stir process 2h at room temperature, use deionized water
Filter cake is washed to no clDetection dries filter cake at 105 DEG C, and ground 200 mesh obtains acid activation medical stone；Then configuration matter
Measure the La that score is 0.5%3+Solution adjusts pH to 10 with 1mol/L ammonium hydroxide, adds acid activation medical stone by solid-liquid volume ratio 1:50
(in the part solid-liquid refer respectively to acid activation medical stone (Gu) and mass fraction be 0.5% La3+Solution (liquid)), at room temperature
16h is impregnated, filter cake is dried in 105 DEG C after filtering, and 1h is roasted at 450 DEG C, and ground 200 mesh is put into drier cooling
It is the modified medical stone of Rare Earth Lanthanum to room temperature；
Buffering absorption 20 cross section of canal be it is trapezoidal, inside is covered with filler, and filler is that modified Du sharpens shell, vermiculite and wood powder biology
Charcoal, 1:1:1 is mixed three by volume；
Modified Du's whetstone shell sharpens shell deionized water repeated flushing the preparation method is as follows: shutting out, mistake after grinding after 105 DEG C of drying
100 meshes, then 1h is pyrolyzed at 650 DEG C in electrolytic furnace using limit oxygen heating charring, modified Du is made and sharpens shell；
The charring the preparation method is as follows: the limit oxygen of wood powder made of timber heats up of the wood powder is at 500 DEG C in electrolytic furnace
It is pyrolyzed 3h, sieves with 100 mesh sieve, can be prepared by after natural cooling；
The vermiculite the preparation method is as follows: vermiculite deionized water repeated flushing, sieved with 100 mesh sieve after being ground after 105 DEG C of drying,
It can be prepared by.
In above-mentioned raw materials, Du sharpens shell and is purchased from Zhoushan Of Zhejiang Province Dinghai District Xu Wang farm, and vermiculite is purchased from Yuan Heng water purification company, wood
Powder is purchased from Hangzhou Tong Fa timber company；
Specifically, aquiculture waste water flows into filtering ponds 8 by water pump 6, is adsorbed and is filtered in filtering ponds, flows into common
Pond 9, common pond 9 are connected by reinforced concrete pipe 12 with buffering absorption canal 20, and treated, and aquiculture waste water enters buffering
Adsorb canal 20 in, in order to facilitate personnel observation it is related to processing repair, can above reinforced concrete pipe 12 laying road 11.
Agricultural economy crop such as rape, peanut etc. is planted in the aerobic zone I 15 and aerobic zone II 26.
Referring to Figure 5, aquiculture waste water enter buffering absorption canal 20 in after, further flow into the braiding channel 16 into
Enter anaerobic zone 29, to flow out to buffering dispersion canal 7；
16 cross section of braiding channel is sunken arcs shape, and middle part high-land, both ends topography is low, ratio of slope 1:500；
The anaerobic zone 29 is that modified zeolite is wrapped up with PVA film 25, and it is gentle with braiding channel 16 respectively that several are inserted into inside
The pvc pipe 23 that punching dispersion canal 7 is connected to；The buffering dispersion canal 7 is equipped with cobblestone 24；
The grail 17 wrapped up with non-woven geotextile is equipped between the braiding channel 16 and anaerobic zone 29；
The modified zeolite the preparation method is as follows: select 60 ~ 150 mesh of partial size zeolite, be put by solid-liquid volume ratio 1:20
Mechanical stirring 1h in 0.4mol/L sodium chloride solution, washes with water later to neutrality, and being placed in temperature is to dry in 70 DEG C of drying boxes,
Obtain modified zeolite.In the part solid-liquid refer respectively to zeolite (Gu) and sodium chloride solution (liquid).
Specifically, the aquiculture waste water in braiding channel 16 flows into anaerobic zone by the pvc pipe 23 being connected to braiding channel 16
29, after treatment, flowed out by the pvc pipe 23 being connected to buffering dispersion canal 7, to complete Anaerobic Treatment；The buffering point
It dissipates canal 7 and is equipped with cobblestone 24, buffering can be effectively reduced, dispersing water flow simultaneously mitigates washing away to aerobic zone II 26.
The band 18 that catchments is equipped with 19 connecting place of water storage sedimentation basin in the aerobic zone II 26；The band 18 that catchments is by stone heap
The notch that a width is about 5cm is arranged into every 200cm in product, for converging water flow, forms water and falls, facilitate to waste water
Processing.
19 design size of water storage sedimentation basin is 60m × 1.5m × 0.7m, planting aquatic plants 5 in pond, while can be fitted
When being put into bottom of pond particulate matter, such as modified zeolite；
The modified zeolite the preparation method is as follows: select 60 ~ 150 mesh of partial size zeolite, be put by solid-liquid volume ratio 1:20
Mechanical stirring 1h in 0.4mol/L sodium chloride solution, washes with water later to neutrality, and being placed in temperature is to dry in 70 DEG C of drying boxes,
Obtain modified zeolite.In the part solid-liquid refer respectively to zeolite (Gu) and sodium chloride solution (liquid).
Specifically, flow into water storage sedimentation basin from indentation, there, form water and fall to improving oxygen in water, and stop 2-3h with
Convenient for water plant and microorganism absorption degradation, it is finally discharged into river.
It is equipped with the infiltration ridge 14 in buffering absorption canal 20 and I 15 connecting place of aerobic zone, the infiltration ridge 14 is for buffering
Water flow and filler III 13 is avoided to enter aerobic zone I 15 with water flow.
Claims (8)
1. the ecosystem of nitrogen phosphorus in a kind of removal aquiculture waste water, it is characterised in that: at pretreatment unit, O-A-O
Manage unit and water storage sedimentation basin；The pretreatment unit is connected by O-A-O processing unit with water storage sedimentation basin；
The pretreatment unit including water plant area (1), the water district (28) being located in water plant area (1) and is used for
The separation layer (27) separated between water plant area (1) and water district (28)；
The O-A-O processing unit, including buffering adsorption zone, aerobic zone I (15), braiding channel (16), anaerobic zone (29), buffering point
Dissipate canal (7) and aerobic zone II (26)；
The buffering adsorption zone, including be located in water district (28) concrete sump (21), for by the water in water district (28)
Aquaculture waste is transferred to water pump (6) in concrete sump (21), buffering absorption canal (20) and for being connected to concrete sump
(21) ease up and suction the reinforced concrete pipe (12) of attached canal (20)；
The water storage sedimentation basin (19) is mainly used for the absorption for the aquiculture waste water crossed through O-A-O processing unit processes, savings
And precipitating.
2. the ecosystem of nitrogen phosphorus in a kind of removal aquiculture waste water according to claim 1, it is characterised in that: described
Separation layer (27) is hollow rectangular enclosing wall, inside be successively arranged gravel layer (2) and zeolite layer (3) from outside to inside, and it is hollow
It is wire gauze circumference on the outside of rectangular enclosing wall inside is surrounded by the braiding networking of several bamboo poles, and centre is hollow structure；
With non-woven geotextile interval between the gravel layer (2) and zeolite layer (3)；
The zeolite layer (3) is made of modified zeolite；
The modified zeolite the preparation method is as follows: select 60 ~ 150 mesh of partial size zeolite, be put by solid-liquid volume ratio 1:20
Mechanical stirring 1h in 0.4mol/L sodium chloride solution, washes with water later to neutrality, and being placed in temperature is to dry in 70 DEG C of drying boxes,
Obtain modified zeolite.
3. the ecosystem of nitrogen phosphorus in a kind of removal aquiculture waste water according to claim 1, it is characterised in that: described
The suction side of water pump (6) is located in water district (28), and the end of the suction side is equipped with anti-mud-sucking device (4), the anti-suction mud
Device (4) is using reinforcing bar as skeleton, and surrounding covers the cylindrical body of nylon wire.
4. the ecosystem of nitrogen phosphorus in a kind of removal aquiculture waste water according to claim 3, it is characterised in that: described
Concrete sump (21) is divided into filtering ponds (8) and common pond (9), wherein the water outlet of the water pump (6) is located in filtering ponds (8)；
It is filled with filler I (22) in the filtering ponds (8), which is that modified zeolite and HFO modification bamboo charcoal, the two are pressed
Volume ratio 1:1 is mixed；
The modified zeolite preparation method is as follows: selecting the zeolite of 60 ~ 150 mesh of partial size, is put by solid-liquid volume ratio 1:20
Mechanical stirring 1h in 0.4mol/L sodium chloride solution, washes with water later to neutrality, and being placed in temperature is to dry in 70 DEG C of drying boxes,
Obtain modified zeolite；
The HFO modification bamboo charcoal preparation method is as follows: the particle bamboo charcoal that partial size after drying is 10-20 mesh is added to 1g/mL'sIn solution, room temperature lower sealing is placed for 24 hours after mixing evenly, then Rotary Evaporators under the conditions of 60 DEG C
Middle curing 12h, then washed product is freeze-dried for 24 hours at room temperature to neutrality repeatedly with deionized water；
It is placed with cylindrical body stuffing box in the reinforced concrete pipe (12), the cylindrical body stuffing box is using reinforcing bar as skeleton, surface
Fine and closely woven nylon wire is covered, and inside is filled with the modified medical stone of Rare Earth Lanthanum；
The modified medical stone of the Rare Earth Lanthanum the preparation method is as follows: first medical stone is crushed, cleaned with deionized water, wait rush
It is filtered when wash water is more clear, obtains filter cake, filter cake crosses 200 meshes, obtain natural medical stone sample in 105 DEG C of drying, grinding；Match
The hydrochloric acid solution that concentration is 1mol/L is set, adds natural medical stone sample by solid-liquid volume ratio 1:10, at room temperature stir process 2h
After pump filtrate, filter cake is washed with deionized and detects to no cl, filter cake is dried at 105 DEG C, ground 200 mesh obtains sour
Activate medical stone；The La that subsequent configuration quality score is 0.5%3+Solution adjusts pH to 10 with 1mol/L ammonium hydroxide, by solid-liquid volume
Acid activation medical stone is added than 1:50, impregnates 16h at room temperature, filter cake is dried in 105 DEG C after filtering, is roasted 1h at 450 DEG C, is ground
Honed 200 mesh is put into drier and is cooled to room temperature as the modified medical stone of Rare Earth Lanthanum；
Buffering absorption canal (20) cross section be it is trapezoidal, inside is covered with filler, and it is raw that filler is that modified Du sharpens shell, vermiculite and wood powder
Object charcoal, 1:1:1 is mixed three by volume；
Modified Du's whetstone shell sharpens shell deionized water repeated flushing the preparation method is as follows: shutting out, mistake after grinding after 105 DEG C of drying
100 meshes, then 1h is pyrolyzed at 650 DEG C in electrolytic furnace using limit oxygen heating charring, modified Du is made and sharpens shell；
The charring the preparation method is as follows: the limit oxygen of wood powder made of timber heats up of the wood powder is at 500 DEG C in electrolytic furnace
It is pyrolyzed 3h, sieves with 100 mesh sieve, can be prepared by after natural cooling；
The vermiculite the preparation method is as follows: vermiculite deionized water repeated flushing, sieved with 100 mesh sieve after being ground after 105 DEG C of drying,
It can be prepared by.
5. the ecosystem of nitrogen phosphorus in a kind of removal aquiculture waste water according to claim 1, it is characterised in that: described
Agricultural economy crop is planted in aerobic zone I (15) and aerobic zone II (26).
6. the ecosystem of nitrogen phosphorus in a kind of removal aquiculture waste water according to claim 1, it is characterised in that: aquatic products
Breeding wastewater enters anaerobic zone (29) by the braiding channel (16), to flow out to buffering dispersion canal (7)；
Braiding channel (16) cross section is sunken arcs shape, and middle part high-land, both ends topography is low, ratio of slope 1:500；
The anaerobic zone (29) is that modified zeolite is wrapped up with PVA film (25), internal insertion several respectively with braiding channel
(16) pvc pipe (23) being connected to buffering dispersion canal (7)；Buffering dispersion canal (7) is equipped with cobblestone (24)；
The grail (17) wrapped up with non-woven geotextile is equipped between the braiding channel (16) and anaerobic zone (29)；
The modified zeolite the preparation method is as follows: select 60 ~ 150 mesh of partial size zeolite, be put by solid-liquid volume ratio 1:20
Mechanical stirring 1h in 0.4mol/L sodium chloride solution, washes with water later to neutrality, and being placed in temperature is to dry in 70 DEG C of drying boxes,
Obtain modified zeolite.
7. the ecosystem of nitrogen phosphorus in a kind of removal aquiculture waste water according to claim 1, it is characterised in that: in institute
It states aerobic zone II (26) and water storage sedimentation basin (19) connecting place is equipped with the band (18) that catchments；It is described catchment band (18) by stone accumulation and
The notch that one width is about 5cm is set at every 200cm, for converging water flow, forms water and falls, facilitate the place to waste water
Reason.
8. the ecosystem of nitrogen phosphorus in a kind of removal aquiculture waste water according to claim 1, it is characterised in that: in institute
It states buffering absorption canal (20) and aerobic zone I (15) connecting place is equipped with the infiltration ridge (14), the infiltration ridge (14) is for buffering water flow
And filler III (13) is avoided to enter aerobic zone I (15) with water flow.
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