CN209242807U - A kind of struvite crystallization method dephosphorizing reactor - Google Patents
A kind of struvite crystallization method dephosphorizing reactor Download PDFInfo
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Abstract
The utility model provides a kind of struvite crystallization method dephosphorizing reactor, it include hollow cylinder, inhalant region is successively arranged along water inlet direction in the cylinder, reactive crystallization area, clear water Upwelling Region, exhalant region, filter plate is equipped between the inhalant region and reactive crystallization area, at least one alkali liquor allocator is equipped in the reactive crystallization area, clear water Upwelling Region top is equipped with effluent weir, the exhalant region is connected through effluent weir with clear water Upwelling Region, the inhalant region is equipped with water intake, recirculated water water inlet, the water intake is communicated by filter plate with reactive crystallization area by the road, the exhalant region is equipped with water outlet.The utility model provides a kind of struvite crystallization method dephosphorizing reactor, has the characteristics that carrier is less scaling, mass-transfer efficiency is high, reaction efficiency, is not easy to plug high with product recoveries, can be applied to the processing of high concentration N-P waste water and the recycling of phosphorus.
Description
Technical field
The utility model belongs to the Treatment and recovery recovery technology field of high concentration N-P waste water, is related to a kind of guanite
Crystallisation dephosphorizing reactor.
Background technique
The source of phosphorus includes natural source and artificial source in water, wherein artificial source is main source, main includes row
Let out object, Cleaning preparations, fertilizer, pesticide, certain industrial wastewaters etc..Nearly all sanitary sewage and part industrial wastewater, which exist, to be contained
The excessively high problem of phosphorus amount.Currently, generalling use bioanalysis and chemical method dephosphorization.It is currently running experience have shown that, removed using biology
Phosphorus method, the removal amount of phosphorus are typically about 3.5~4.5% (5~20d of sludge age) of BOD, are generally difficult only with biological phosphate-eliminating full
The discharge standard being increasingly stringenter enough.Therefore, usually chemical method is added to be pre-processed or post-processed in water process.But it passes
The chemical dephosphorization of system is a simple chemical agent adding procedure, and operation cost is high, needs a large amount of chemicals, there are secondary
Pollution and waste.
Meanwhile phosphorus is the various biogenic nutrients such as the mankind and animals and plants again, it is living in the life of cell
Key effect is played in dynamic, different from nitrogen, phosphorus is mostly one-way flow in biosphere, is a kind of non-renewable preciousness
Resource.
As it can be seen that the processing for nitrogen phosphorus waste water, will not only reach the management goal of discharge environment, meet energy conservation again and disappear
Consumption sufficiently recycles valuable nitrogen phosphor resource.Struvite crystallization method is applied to the de- of all kinds of waste water by multinomial research both domestic and external
Nitrogen dephosphorization, including breeding wastewater, landfill leachate, anaerobic digestion supernatant, semiconductor production waste water etc., not only can be effectively
The nitrogen phosphorus in water removal is removed, it is a kind of collection ecological benefits that the precipitating of generation, which can be used as slow-release fertilizer for agricultural production and flower planting,
The research hotspot of the method for treating water and water treatment field that are integrated with social benefit.
Chinese patent 201722152U discloses the device for recycling phosphorus from waste water using the guanite precipitation method, mainly by covering
Tubular reactor, packing layer, magnesium salt solution inlet pipe, lye inlet pipe, sediment discharge pipe, liquid distribution trough, pH meter and pH value control
System composition processed.Increase gas-liquid contact face by setting packing layer, on the one hand, promote the removing of carbon dioxide in waste water, it is another
Aspect provides the crystalline carrier of guanite, while also reducing the land occupation of reactor.But packing layer fixation is made in the reactor
Filler fouling risk is also brought along for the crystalline carrier of guanite, crystal yield reduces, and is also unfavorable for later maintenance.
Chinese patent 104529027A discloses the device of guanite grain crystalline method removal phosphate in waste water, including outer
Portion's cylinder receives water guide shell, is recycled back to flow tube and plug-flow recirculation assembly, it can be achieved that reaction, meeting basin, particle growth, Automatic sieve
Choosing, guanite discharging, precipitating and draining integration, the body particles structure division of guanite particle manufacture are shape knot wide at the top and narrow at the bottom
Structure, cone angle is between 10~30 °.Entire reactor configuration hydraulic flow state design rationally, but does not have carrier granular, and there is also impurity
The possibility of generation, the purity and size of guanite are uncontrollable.
Chinese patent 204369634U discloses a kind of internal-circulation type struvite crystallization device, including outer cylinder cylinder and sedimentation
Area's cylinder, three phase separator and outlet canal cylinder, inner cylinder top has been fixedly connected with dismountable stainless steel wire carrier, inner cylinder lower part
Equipped with aeration cycle device, it can be achieved that generating struvite crystallization under conditions of lye is not added.But dismountable stainless steel wire
Fixed bed still has the risk of carrier fouling and blocking, causes stainless steel wire replacement frequency high, operation and maintenance amount is big.
Utility model content
In view of the foregoing deficiencies of prior art, the purpose of this utility model is to provide a kind of struvite crystallization methods to remove
Phosphorus reaction device has the characteristics that carrier is less scaling, mass-transfer efficiency is high, reaction efficiency is high, it is high with product recoveries to be not easy to plug,
It can be applied to the processing of high concentration N-P waste water and the recycling of phosphorus.
In order to achieve the above objects and other related objects, the utility model provides a kind of struvite crystallization method except phosphorus reaction
Device includes hollow cylinder, and water inlet direction in edge is successively arranged inhalant region, reactive crystallization area, clear water upper up-flow in the cylinder
Area, exhalant region are equipped with filter plate, are equipped at least one lye in the reactive crystallization area between the inhalant region and reactive crystallization area
Distributor, clear water Upwelling Region top are equipped with effluent weir, and the exhalant region is connected through effluent weir with clear water Upwelling Region,
The inhalant region is equipped with water intake, recirculated water water inlet, and the water intake is by the road by filter plate and reactive crystallization
Area communicates, and the exhalant region is equipped with water outlet.
Preferably, the top opening of the cylinder and bottom is closed.
Preferably, the material of the cylinder is stainless steel.It is highly preferred that the stainless steel is 316L type stainless steel.
Preferably, the cylinder lateral wall where the clear water Upwelling Region is relative to the cylinder side where the reactive crystallization area
The outside flaring of wall.
It is highly preferred that cylinder where the reactive crystallization area with it is straight at the top of the cylinder where the clear water Upwelling Region
The ratio between diameter is 34:35-37.It is further preferred that cylinder and clear water Upwelling Region place where the reactive crystallization area
Cylinder at the top of diameter ratio be 34:36.
Preferably, the water intake is located on the cylinder lateral wall where the inhalant region.
Preferably, the recirculated water water inlet is located at the cylinder body bottom where the inhalant region.
Preferably, the inhalant region is equipped with drain.The drain is located at the cylinder body bottom where the inhalant region.
Preferably, the inhalant region is equipped with lower manhole.The lower manhole is located at the cylinder body bottom where the inhalant region.
Preferably, the filter plate be equipped at least one influent waste water filter cap, the influent waste water filter cap by the road with institute
Water intake is stated to be connected.The influent waste water filter cap is the ABS short handle filter cap equipped with check function.
Preferably, the filter plate is equipped at least one recirculated water water inlet filter cap, the recirculated water water inlet filter cap and water inlet
Area is connected.The recirculated water water inlet filter cap is the ABS short handle filter cap equipped with check function.
It is highly preferred that the influent waste water filter cap is intervally arranged on filter plate with recirculated water water inlet filter cap, it is adjacent described useless
The ratio of number of water water inlet filter cap and recirculated water water inlet filter cap is 1:(3~6).
Preferably, the filter plate is one-piece casting formula ABS filter plate.
Preferably, the inhalant region, reactive crystallization area are respectively equipped with pressure difference transmitter.The pressure difference transmitter is respectively equipped with
On cylinder lateral wall where the inhalant region, reactive crystallization area.The pressure difference transmitter is conventional use of pressure difference transmitter, can
Commercially obtain.
Preferably, pH sensor and temperature sensor are equipped in the reactive crystallization area.The pH sensor is conventional makes
PH sensor, the temperature sensor are conventional use of temperature sensor, both commercially available acquisition.
Preferably, the reactive crystallization area is equipped with side manhole.The side manhole is located at the cylinder where the reactive crystallization area
Body sidewall lower part.
Preferably, the cylinder lateral wall where the reactive crystallization area is successively arranged sand removing hole floor, mixing mouth along water inlet direction
Layer, at least one observation panel layer, the sand removing hole layer are equipped with multiple sand removing holes, and the mixing mouth layer is equipped with multiple plus sand mouth
With multiple observation panels, the observation panel layer is equipped with multiple observation panels.
It is highly preferred that the observation panel layer is successively arranged the first observation panel layer, the second observation panel layer along water inlet direction.
It is highly preferred that the sand removing hole is uniformly distributed on sand removing hole layer.
It is highly preferred that the observation panel is uniformly distributed on observation panel layer.
It is highly preferred that described plus sand mouth is interspersed on mixing mouth layer with observation panel.
It is highly preferred that the observation panel is equipped with blind plate.
Preferably, described plus sand mouth is added crystal seed and is selected from one of sand or minerals.The crystal seed provides guanite
The carrier of growth, and it is in fluidized state, improve mass-transfer efficiency.
It is highly preferred that the sand is quartz sand.
It is highly preferred that the minerals are garnet.
It is highly preferred that the partial size of the crystal seed is 0.25~0.35mm.
Preferably, the alkali liquor allocator is equipped with multiple lye spray heads.The lye spray head is equal on alkali liquor allocator
Even distribution.The alkali liquor allocator is conventional use of water distributor, commercially available acquisition.
It is highly preferred that being threadedly coupled between the lye spray head and alkali liquor allocator.The lye spray head is conventional uses
The commercially available acquisition of atomizer.Specifically, the lye spray head is filter screen type finer atomization nozzle.
It is highly preferred that alkali used in the lye is sodium hydroxide.
Preferably, the alkali liquor allocator is successively arranged lower layer's alkali liquor allocator, upper layer alkali liquor allocator along water inlet direction.
It is highly preferred that the diameter of lower layer's alkali liquor allocator is 0.8 of the barrel diameter where the reactive crystallization area
~0.9.
It is highly preferred that the diameter of the upper layer alkali liquor allocator is 0.5 of the barrel diameter where the reactive crystallization area
~0.7.
Preferably, the effluent weir is triangle effluent weir.
Preferably, the material of the effluent weir is stainless steel.It is highly preferred that the stainless steel is 316L type stainless steel.
Preferably, the clear water Upwelling Region is externally provided with bottle gouard moved by hands, and the bottle gouard moved by hands is through manual-chain and swing pipe phase
Connection, the swing pipe are connected with alkali liquor allocator.
Preferably, the water inlet direction is upward flow.
As described above, a kind of struvite crystallization method dephosphorizing reactor provided by the utility model, has the advantages that
(1) a kind of struvite crystallization method dephosphorizing reactor provided by the utility model, pipeline and filter cap water distribution are uniform, water inlet
Acid is first adjusted to enter pipeline, ensure pipeline non-scaling；Filter cap is provided with check function, thus not blocking pipeline.
(2) a kind of struvite crystallization method dephosphorizing reactor provided by the utility model, mass-transfer efficiency is high, above-mentioned guanite knot
Crystallization dephosphorizing reactor be fluidized bed form, due in reactor crystal seed be in fluidisation rising stream mode, and crystal seed have compared with
Big specific surface area and selectivity, struvite crystals are easier to crystallize and be continuously generated crystal in seed surface.
(3) a kind of struvite crystallization method dephosphorizing reactor provided by the utility model, reaction efficiency and product recovery efficiency
Height, adding the crystal seed that partial size is 0.25~0.35mm is reaction carriers, and phosphorus-containing wastewater, medicament and crystal seed haptoreaction are more abundant,
So that the cocrystallization of useless impurities in water is minimized, reaction and product recovery efficiency are improved, the phosphorous recovery in waste water is reachable
90% or more.
(4) a kind of struvite crystallization method dephosphorizing reactor provided by the utility model, high degree of automation, dosage control
Precisely, pH and temperature sensor are set, reaction condition and sediment outflow amount are set, improves reaction efficiency and product purity.
Detailed description of the invention
Fig. 1 is shown as the front view of the struvite crystallization method dephosphorizing reactor structure in the utility model.
Fig. 2 is shown as the flow-shape schematic diagram when operation of the struvite crystallization method dephosphorizing reactor in the utility model.
Appended drawing reference
1 cylinder
A inhalant region
B reactive crystallization area
C clear water Upwelling Region
D exhalant region
2 filter plates
21 influent waste water filter caps
22 recirculated waters water inlet filter cap
3 alkali liquor allocators
31 lower layer's alkali liquor allocators
32 upper layer alkali liquor allocators
33 lye spray heads
4 effluent weirs
5 water intakes
6 recirculated water water inlets
7 sand removing hole layers
71 sand removing holes
8 mixing mouth layers
81 add sand mouth
82 observation panels
9 observation panel layers
91 first observation panel layers
92 second observation panel layers
10 water outlets
11 drains
12 lower manholes
13 pressure difference transmitters
14 side manholes
15 bottle gouards moved by hands
16 swing pipes
Specific embodiment
The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily.
Fig. 1 is please referred to Fig. 2.It should be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to
Cooperate the revealed content of specification, so that those skilled in the art understands and reads, is not intended to limit the utility model
Enforceable qualifications, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or size
Adjustment, in the case where not influencing the effect of the utility model can be generated and the purpose that can reach, should all still fall in the utility model
Revealed technology contents obtain in the range of capable of covering.Meanwhile in this specification it is cited as "upper", "lower", " left side ",
The term on " right side ", " centre " and " one " etc. is merely convenient to being illustrated for narration, rather than enforceable to limit the utility model
Range, relativeness are altered or modified, under the content of no substantial changes in technology, enforceable when being also considered as the utility model
Scope.
As shown in Figs. 1-2, the utility model provides a kind of struvite crystallization method dephosphorizing reactor, includes hollow cylinder
1, inhalant region A, reactive crystallization area B, clear water Upwelling Region C, exhalant region D are successively arranged along water inlet direction in the cylinder 1, it is described
It is equipped with filter plate 2 between inhalant region A and reactive crystallization area B, is equipped at least one alkali liquor allocator 3, institute in the reactive crystallization area B
The clear water Upwelling Region top C is stated equipped with effluent weir 4, the exhalant region D is connected through effluent weir 4 with clear water Upwelling Region C, described
Inhalant region A is equipped with water intake 5, recirculated water water inlet 6, and the water intake 5 is by the road by filter plate 2 and reactive crystallization
Area B is communicated, and the exhalant region D is equipped with water outlet 10.
In a preferred embodiment, as shown in Figure 1, 2, the top opening of the cylinder 1 and bottom is closed.The cylinder
The material of body 1 is stainless steel, and the stainless steel is 316L type stainless steel.Keep cylinder 1 less scaling.
In a preferred embodiment, as shown in Figure 1, 2,1 side wall of cylinder where the clear water Upwelling Region C is opposite
In the outside flaring of 1 side wall of cylinder where the reactive crystallization area B.Since clear water Upwelling Region C is relative to reactive crystallization area B's
Flaring, so that water velocity reduces, the crystal seed upflow velocity of fluidisation reduces, and separates crystal seed with water body.
Further, 1 top of the cylinder where the reactive crystallization area B and the cylinder where the clear water Upwelling Region C
Diameter ratio be 34:35-37, preferably 34:36.Under aforementioned proportion relationship, the separation of solid and liquid that flaring can be made to generate is imitated
Fruit is best.
In a preferred embodiment, as shown in Figs. 1-2, the water intake 5 is located at where the inhalant region A
On 1 side wall of cylinder.Inhalant region A is flowed into convenient for waste water.The recirculated water water inlet 6 is located at 1 bottom of cylinder where the inhalant region A
Portion.Inhalant region A is flowed into convenient for recirculated water.
In a preferred embodiment, as shown in Figure 1, 2, the inhalant region A is equipped with drain 11.The drain 11
Positioned at 1 bottom of cylinder where the inhalant region A.The drain 11 is opened in overhaul of the equipments, is vented recirculated water.
In a preferred embodiment, as shown in Figure 1, 2, the inhalant region A is equipped with lower manhole 12.The lower manhole 12
Positioned at 1 bottom of cylinder where the inhalant region A.The lower manhole 12 overhauls inhalant region A pipeline and attachment convenient for user.
In a preferred embodiment, as shown in Figure 1, 2, the filter plate 2 is one-piece casting formula ABS filter plate.
In a preferred embodiment, as shown in Figure 1, 2, the filter plate 2 is equipped at least one influent waste water filter cap
21, the influent waste water filter cap 21 is connected with the water intake 5 by the road.The influent waste water filter cap 21 is equipped with only
Return the ABS short handle filter cap of function.The influent waste water filter cap 21 has check function, convenient for waste water one direction by water intake
5 flow into reactive crystallization area B through inhalant region A, on the one hand realize water distribution uniformity, on the other hand quicksand are prevented to enter.
In a preferred embodiment, as shown in Figure 1, 2, the filter plate 2 is equipped with the water inlet filter of at least one recirculated water
Cap 22, the recirculated water water inlet filter cap 22 are connected with inhalant region A.The recirculated water water inlet filter cap 22 is equipped with check function
ABS short handle filter cap.The recirculated water water inlet filter cap 22 has check function, is flowed into instead convenient for recirculated water one direction by inhalant region A
Crystal region B is answered, water distribution uniformity is on the one hand realized, on the other hand quicksand is prevented to enter.
Further, as shown in Figure 1, 2, between the influent waste water filter cap 21 and recirculated water intake filter cap 22 on filter plate 2
Every arrangement, the ratio of number of the adjacent influent waste water filter cap 21 and recirculated water water inlet filter cap 22 is 1:(3~6).Convenient for waste water
It is uniformly mixed with recirculated water, and its mixed effect is made to reach best.
In a preferred embodiment, as shown in Figure 1, 2, the inhalant region A, reactive crystallization area B are respectively equipped with pressure difference
Transmitter 13.The pressure difference transmitter 13 is respectively equipped on 1 side wall of cylinder where the inhalant region A, reactive crystallization area B.Institute
Stating pressure difference transmitter 13 is conventional use of pressure difference transmitter, commercially available acquisition.The pressure difference transmitter 13 is used for
Adjust the upflow velocity of circulating water flow and water flow.
In a preferred embodiment, pH sensor and temperature sensor are equipped in the reactive crystallization area B.The pH
Sensor is conventional use of pH sensor, and the temperature sensor is conventional use of temperature sensor, both can be from city
It buys and obtains on field.The pH sensor and temperature sensor according to the struvite crystallization solubility product under relevant temperature by adjusting
Whole pH value is to suitable crystallization condition.
In a preferred embodiment, as shown in Figure 1, 2, the reactive crystallization area B is equipped with side manhole 14.The people from side
Hole 14 is located at 1 lower sidewall of cylinder where the reactive crystallization area B.The side manhole 14 is used to overhaul the filter cap on filter plate 2,
And crystal is observed in the growing state of reactive crystallization area B.
In a preferred embodiment, as shown in Figure 1, 2,1 side wall of cylinder where the reactive crystallization area B is along water inlet
Direction is successively arranged sand removing hole layer 7, mixing mouth layer 8, at least one observation panel layer 9, and the sand removing hole layer 7 is equipped with multiple sediment outflows
Mouth 71, the mixing mouth layer 8 are equipped with multiple plus sand mouth 81 and multiple observation panels 82, and the observation panel layer 9 is equipped with multiple sights
Examine mouth 82.The sand removing hole 71 is used for the discharge of final struvite crystals.Described plus sand mouth 81 is for being added crystal seed.The observation
The case where mouth 82 generates crystal for observing response crystallization.
Further, as shown in Figure 1, 2, the observation panel layer 9 is successively arranged the first observation panel layer 91, the along water inlet direction
Two observation panel layers 92.The sand removing hole 71 is uniformly distributed on sand removing hole layer 7.The observation panel 82 is uniform on observation panel layer 9
Distribution.The observation panel 82 is equipped with blind plate.
Further, as shown in Figs. 1-2, described plus sand mouth 81 is interspersed on mixing mouth layer 8 with observation panel 82.
Further, described plus sand mouth 81 is added crystal seed and is selected from one of sand or minerals.The sand is quartz sand.Institute
Stating minerals is garnet.The partial size of the crystal seed is 0.25~0.35mm.The crystal seed provides the carrier of guanite growth,
And it is in fluidized state, improve mass-transfer efficiency.
In a preferred embodiment, as shown in Figure 1, 2, the alkali liquor allocator 3 is equipped with multiple lye spray heads 33,
The lye spray head 33 is uniformly distributed on alkali liquor allocator 3.Screw thread connects between the lye spray head 33 and alkali liquor allocator 3
It connects.The lye spray head 33 is filter screen type finer atomization nozzle.The lye spray head 33 can effectively spray lye.
In a preferred embodiment, as shown in Figure 1, 2, the alkali liquor allocator 3 is successively arranged down along water inlet direction
Layer alkali liquor allocator 31, upper layer alkali liquor allocator 32.The alkali liquor allocator 3 is by injection lye for adjusting struvite crystallization
Method removes the pH value of phosphorus reaction.
Further, as shown in Figure 1, 2, where the diameter of lower layer's alkali liquor allocator 31 is the reactive crystallization area B
1 diameter of cylinder 0.8~0.9.The diameter of the upper layer alkali liquor allocator 32 is the cylinder 1 where the reactive crystallization area B
The 0.5~0.7 of diameter.By the way that upper layer and lower layer alkali liquor allocator is arranged, and its relative position is controlled, optimal adjusting can be obtained
Effect.
In a preferred embodiment, as shown in Figure 1, the effluent weir 4 is triangle effluent weir.The effluent weir 4
Material is stainless steel, and the stainless steel is 316L type stainless steel.It can effectively ensure that clear water flows into exhalant region D.
In a preferred embodiment, as shown in Figure 1, 2, the clear water Upwelling Region C is externally provided with bottle gouard moved by hands 15, institute
It states bottle gouard moved by hands 15 and is connected through manual-chain with swing pipe 16, the swing pipe 16 is connected with alkali liquor allocator 3.The swing pipe 16
For lye to be delivered to alkali liquor allocator 3, while lifting effect is played when alkali liquor allocator 3 overhauls, can effectively go up and down
Alkali liquor allocator 3.
Below with reference to Fig. 1-2, illustrate a kind of use process of struvite crystallization method dephosphorizing reactor in the utility model.
After user obtains a kind of struvite crystallization method dephosphorizing reactor as shown in Figs. 1-2, by phosphorus-containing wastewater and magnesium salts,
PH value is adjusted after ammonium salt mixing to 5~6, obtains mixed solution, wherein magnesium salts is selected from one of magnesium sulfate, magnesium chloride or two
Kind mixing, ammonium salt are mixed selected from one or both of ammonium sulfate, ammonium chloride, and phosphorus-containing wastewater, magnesium salts, ammonium salt press PO4 3-、Mg2+、
NH4 +Molar ratio be (1.5~2.5): (0.5~1.5): (1.5~2.5) be added.Mixed solution is put into reactor, from waste water
Water inlet 5 flows into reactive crystallization area B by influent waste water filter cap 21 by the road.Meanwhile by recirculated water from recirculated water water inlet 6 through into
Pool A flows into reactive crystallization area B by recirculated water water inlet filter cap 22.Influent waste water filter cap 21 and recirculated water water inlet filter cap 22 are in filter plate
It is intervally arranged on 2, the ratio of number of the adjacent influent waste water filter cap 21 and recirculated water water inlet filter cap 22 is 1:(3~6).Mixing
Solution and recirculated water are 1:1~1:1.5 in the ratio between inflow volume of reactive crystallization area B.Added sand mouth 81 that crystal seed, crystal seed is added
Selected from one of sand or minerals, the partial size of crystal seed is 0.25~0.35mm, and the prolongation of crystal seed is 2~4 times/day, brilliant
The ratio that each supplement weight of kind accounts for mixed solution water inlet volume is 3~5g/m3.Lye tune is inputted through alkali liquor allocator 3
PH value is saved to 8~10.Make mixed solution with recirculated water the reactive crystallization after reactive crystallization area B is mixed, it is sufficiently mixed with lye, crystal seed
Splice grafting touching, obtains the water body containing crystal, and the crystal coexists with crystal seed, water body.In reactive crystallization area B, in the operation of room temperature
In environment, crystal seed provides the carrier of guanite growth, and is in fluidized state.For the crystal seed by struvite crystallization to fluidisation
On, by selecting suitable process conditions, so that the continual progress of reactive crystallization, as struvite crystals are grown into centainly
Size, overcome the flow-disturbing resistance of upward water flow, the crystal of fluidisation is gradually mobile to reactor bottom, so that reactor is from upper
To lower crystal particle diameter with rule distribution from small to large.
At regular intervals, it is discharged in reactive crystallization area B through the sand removing hole 71 on sand removing hole floor 7 after crystal sedimentation, crystal
Partial size be 0.38-0.55mm.Meanwhile sand mouth 81 being added to supplement new crystal seed.The crystal being discharged from sand removing hole 71 is placed on atmosphere
In be dried.
Water body is separated by solid-liquid separation after water inlet direction inflow clear water Upwelling Region C with crystal seed, since clear water Upwelling Region C is opposite
In the flaring of reactive crystallization area B, so that water velocity reduces, the crystal seed upflow velocity of fluidisation rests on reactive crystallization area after reducing
B separates crystal seed with water body.Water body drops to exhalant region D by effluent weir 4 and is discharged by water outlet 10.Through above-mentioned processing
Afterwards, the phosphorous recovery in waste water is up to 90% or more.
In conclusion the utility model provides a kind of struvite crystallization method dephosphorizing reactor, biography less scaling with carrier
Matter is high-efficient, reaction efficiency, is not easy to plug the feature high with product recoveries, can be applied to high concentration N-P waste water processing and
The recycling of phosphorus.So the utility model effectively overcomes various shortcoming in the prior art and has high industrial utilization value.
The above embodiments are only illustrative of the principle and efficacy of the utility model, and not for limitation, this is practical new
Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model
All equivalent modifications or change completed under mind and technical idea, should be covered by the claim of the utility model.
Claims (10)
1. a kind of struvite crystallization method dephosphorizing reactor, which is characterized in that include hollow cylinder (1), in the cylinder (1)
Inhalant region (A), reactive crystallization area (B), clear water Upwelling Region (C), exhalant region (D), the water inlet are successively arranged along water inlet direction
Filter plate (2) are equipped between area (A) and reactive crystallization area (B), at least one alkali liquor allocator is equipped in the reactive crystallization area (B)
(3), the clear water Upwelling Region top (C) is equipped with effluent weir (4), and the exhalant region (D) is through effluent weir (4) and clear water upper up-flow
(C) is connected in area, and the inhalant region (A) is equipped with water intake (5), recirculated water water inlet (6), the water intake
(5) it is communicated by the road by filter plate (2) with reactive crystallization area (B), the exhalant region (D) is equipped with water outlet (10).
2. a kind of struvite crystallization method dephosphorizing reactor according to claim 1, which is characterized in that the clear water upper up-flow
Cylinder (1) side wall where area (C) is relative to the outside flaring of cylinder (1) side wall where the reactive crystallization area (B).
3. a kind of struvite crystallization method dephosphorizing reactor according to claim 2, which is characterized in that the reactive crystallization area
(B) diameter ratio at the top of the cylinder (1) where cylinder (1) and the clear water Upwelling Region (C) where is 34:35-37.
4. a kind of struvite crystallization method dephosphorizing reactor according to claim 1, which is characterized in that on the filter plate (2)
Equipped at least one influent waste water filter cap (21), the influent waste water filter cap (21) by the road with the water intake (5) phase
Connection；The filter plate (2) is equipped at least one recirculated water water inlet filter cap (22), recirculated water water inlet filter cap (22) and water inlet
(A) is connected in area.
5. a kind of struvite crystallization method dephosphorizing reactor according to claim 4, which is characterized in that the influent waste water filter
Cap (21) is intervally arranged on filter plate (2) with recirculated water water inlet filter cap (22), the adjacent influent waste water filter cap (21) and circulation
The ratio of number of water water inlet filter cap (22) is 1:(3~6).
6. a kind of struvite crystallization method dephosphorizing reactor according to claim 1, which is characterized in that the reactive crystallization area
(B) cylinder (1) side wall where is successively arranged sand removing hole layer (7), mixing mouth layer (8), at least one observation panel along water inlet direction
Layer (9), the sand removing hole layer (7) are equipped with multiple sand removing holes (71), and the mixing mouth layer (8) is equipped with multiple plus sand mouth (81)
With multiple observation panels (82), the observation panel layer (9) is equipped with multiple observation panels (82).
7. a kind of struvite crystallization method dephosphorizing reactor according to claim 6, which is characterized in that the observation panel layer
(9) the first observation panel layer (91), the second observation panel layer (92) are successively arranged along water inlet direction；Described plus sand mouth (81) and observation panel
(82) it is interspersed in mixing mouth layer (8).
8. a kind of struvite crystallization method dephosphorizing reactor according to claim 1, which is characterized in that the alkali liquor allocator
(3) multiple lye spray heads (33) are equipped with；The alkali liquor allocator (3) is successively arranged lower layer's alkali liquor allocator along water inlet direction
(31), upper layer alkali liquor allocator (32).
9. a kind of struvite crystallization method dephosphorizing reactor according to claim 1, which is characterized in that the clear water upper up-flow
Area (C) is externally provided with bottle gouard moved by hands (15), and the bottle gouard moved by hands (15) is connected through manual-chain with swing pipe (16), the swing pipe
(16) it is connected with alkali liquor allocator (3).
10. a kind of struvite crystallization method dephosphorizing reactor according to claim 1, which is characterized in that the reactor is also
Including any of the following conditions or multinomial:
A1) inhalant region (A) is equipped with drain (11)；
A2) inhalant region (A) is equipped with lower manhole (12)；
A3) inhalant region (A), reactive crystallization area (B) are respectively equipped with pressure difference transmitter (13)；
A4 pH sensor and temperature sensor) are equipped in the reactive crystallization area (B)；
A5) the reactive crystallization area (B) is equipped with side manhole (14)；
A6) effluent weir (4) is triangle effluent weir.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110885124A (en) * | 2019-12-02 | 2020-03-17 | 怀化恒一颜料化学有限公司 | Equipment for treating quinacridone production wastewater |
| CN111205875A (en) * | 2020-01-15 | 2020-05-29 | 浙江农林大学 | Soil nitrogen and phosphorus regulating agent based on shells and agriculture and forestry solid waste and preparation method thereof |
| CN112811942A (en) * | 2020-12-14 | 2021-05-18 | 中国环境科学研究院 | Waste resource utilization method and application thereof in controlling agricultural non-point source pollution |
| CN113443692A (en) * | 2020-03-27 | 2021-09-28 | 赛奇·洛巴诺夫 | Method and apparatus for recovering size-selected nutrients from wastewater by elutriation |
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2018
- 2018-09-29 CN CN201821605754.XU patent/CN209242807U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110885124A (en) * | 2019-12-02 | 2020-03-17 | 怀化恒一颜料化学有限公司 | Equipment for treating quinacridone production wastewater |
| CN111205875A (en) * | 2020-01-15 | 2020-05-29 | 浙江农林大学 | Soil nitrogen and phosphorus regulating agent based on shells and agriculture and forestry solid waste and preparation method thereof |
| CN113443692A (en) * | 2020-03-27 | 2021-09-28 | 赛奇·洛巴诺夫 | Method and apparatus for recovering size-selected nutrients from wastewater by elutriation |
| US11220445B2 (en) | 2020-03-27 | 2022-01-11 | Sergey Lobanov | Process and apparatus for sized nutrient recovery from wastewater by elutriation |
| CN112811942A (en) * | 2020-12-14 | 2021-05-18 | 中国环境科学研究院 | Waste resource utilization method and application thereof in controlling agricultural non-point source pollution |
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