CN108726733A - Treatment of Phosphorus Containing Waste Water system and its processing method - Google Patents
Treatment of Phosphorus Containing Waste Water system and its processing method Download PDFInfo
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- CN108726733A CN108726733A CN201810770439.0A CN201810770439A CN108726733A CN 108726733 A CN108726733 A CN 108726733A CN 201810770439 A CN201810770439 A CN 201810770439A CN 108726733 A CN108726733 A CN 108726733A
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- waste water
- sludge
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- phosphorus
- water
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- 239000002351 wastewater Substances 0.000 title claims abstract description 73
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 229910052698 phosphorus Inorganic materials 0.000 title claims abstract description 27
- 239000011574 phosphorus Substances 0.000 title claims abstract description 27
- 238000003672 processing method Methods 0.000 title abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 64
- 238000000034 method Methods 0.000 claims abstract description 30
- 230000000694 effects Effects 0.000 claims abstract description 24
- 230000001112 coagulating effect Effects 0.000 claims abstract description 20
- 239000000126 substance Substances 0.000 claims abstract description 15
- 238000001556 precipitation Methods 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims abstract description 13
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 12
- 238000012545 processing Methods 0.000 claims abstract description 12
- 238000009287 sand filtration Methods 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 7
- 231100000719 pollutant Toxicity 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims abstract description 7
- 150000003384 small molecules Chemical class 0.000 claims abstract description 7
- 239000000356 contaminant Substances 0.000 claims abstract description 5
- 239000002253 acid Substances 0.000 claims abstract description 4
- 229920002521 macromolecule Polymers 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 claims abstract description 4
- 239000010802 sludge Substances 0.000 claims description 55
- 238000004062 sedimentation Methods 0.000 claims description 43
- 229910019142 PO4 Inorganic materials 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 8
- 238000005189 flocculation Methods 0.000 claims description 7
- 230000016615 flocculation Effects 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 239000010452 phosphate Substances 0.000 claims description 7
- 239000000701 coagulant Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 230000033116 oxidation-reduction process Effects 0.000 claims description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 4
- 229920002401 polyacrylamide Polymers 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 claims 1
- PMZURENOXWZQFD-UHFFFAOYSA-L sodium sulphate Substances [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims 1
- 235000011152 sodium sulphate Nutrition 0.000 claims 1
- 238000005345 coagulation Methods 0.000 abstract description 8
- 230000015271 coagulation Effects 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 4
- 239000004744 fabric Substances 0.000 description 15
- 238000009826 distribution Methods 0.000 description 11
- 239000010865 sewage Substances 0.000 description 11
- 239000010801 sewage sludge Substances 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical group [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 description 4
- 235000010262 sodium metabisulphite Nutrition 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 230000003851 biochemical process Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- 229920000037 Polyproline Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910000391 tricalcium phosphate Inorganic materials 0.000 description 1
- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 description 1
- 239000003403 water pollutant Substances 0.000 description 1
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/04—Oxidation reduction potential [ORP]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
Present invention is disclosed treatment of Phosphorus Containing Waste Water system and its processing methods, wherein processing system includes at least sequentially connected pretreatment pool, for in acid condition, making macromolecule contaminant reaction generate small molecule contaminants by reducing agent, ORP measurement devices and agitating device being arranged inside；Coagulative precipitation device, for making pollutant form slightly solubility substance and being separated from water；Sandfiltration pot, for removing the tiny suspended particulate substance in waste water；Clear water regulating reservoir is used for the pH value adjustment of clear water between 6-9.This programme deft design, it is simple in structure, by the way that pretreatment pool is arranged and is pre-processed to waste water by reducing agent, it interrupts macromolecular chain and obtains small molecule, to improve the coagulation effect of follow-up waste water, advantageous condition is provided for subsequent precipitation process, greatly improves the removal efficiency of organophosphor, ensure that final effluent quality.
Description
Technical field
The present invention relates to sewage treatment fields, especially treatment of Phosphorus Containing Waste Water system and its processing method.
Background technology
Phosphorus pollution in the treatment of waste water is a main cause for leading to body eutrophication.High P content waste water main source
In food wastewater, the production of chemical fertilizer and processing, agricultural effluent etc.；There is stringent want in country and area to the discharge of this kind of waste water
It asks, therefore, it is necessary to first carry out dephosphorization processing, the emission request of certainly also other polluters avoids it from being directly discharged into rivers
In, it causes seriously to pollute, with water conservation.
Conventional phosphorus-contained wastewater treating method includes biochemical process, adsorption and dephosphorization method, chemical dephosphorization method.
1, biochemical process is to allow phosphorus in water to be consumed or convert using the principle of polyP bacteria and Denitrifying Phosphate Accumulating Organisms, dephosphorization
Rate can reach 70% or more, but microculture is complicated for operation, and processing time is long, and efficiency is low, and treated, and sludge quantity is big, dirty
The subsequent processing workload of mud increases.
2, adsorption and dephosphorization method.This carried out to the phosphorus containg substances in waste water using materials such as activated carbon, activated aluminas
Physical absorption reduces the content of phosphor in sewage with this；This method relies primarily on the adsorptivity of water-purifying material, and consumable material takes
With higher.
3, chemical dephosphorization method.It is by adding chemical dephosphorization agent medicament, being allowed to chemically react with water pollutant,
Insoluble phosphate is generated, then by the method for separation of solid and liquid, achievees the purpose that dephosphorization, this method have sinking speed fast,
Strong applicability, advantage at low cost, quick, but due to the complicated component in waste water, especially useless containing organophosphor
When directly adding coagulant in water, it is unable to give full play corresponding coagulation effect, causes the final outflow water after precipitation can not be up to standard；
Simultaneously as the design defect such as conventional water distribution, filtration of sedimentation basin, frequently result in the bad problem of sedimentation effect.
Invention content
The purpose of the present invention be exactly in order to solve the above-mentioned problems in the prior art, provide it is a kind of by pre-process with
Improve coagulation effect, to ensure the treatment of Phosphorus Containing Waste Water system and its processing method of final water quality reaching standard.
The purpose of the present invention is achieved through the following technical solutions：
Treatment of Phosphorus Containing Waste Water system includes at least sequentially connected
Pretreatment pool, in acid condition, making macromolecule contaminant reaction generate small molecule pollution by reducing agent
ORP measurement devices and agitating device is arranged inside in object；
Coagulative precipitation device, for making pollutant form slightly solubility substance and being separated from water；
Sandfiltration pot, for removing the tiny suspended particulate substance in waste water；
Clear water regulating reservoir is used for the pH value adjustment of clear water between 6-9.
Preferably, in the treatment of Phosphorus Containing Waste Water system, the coagulative precipitation device include sequentially connected coagulating basin,
Flocculation basin and sedimentation basin, the sedimentation basin are rectilinear sedimentation basin comprising the inclined plate for filtering.
Preferably, in the treatment of Phosphorus Containing Waste Water system, the sedimentation basin further includes by bubble on the inclined plate
Sludge carry out clean Accrete clearing device.
Preferably, in the treatment of Phosphorus Containing Waste Water system, the coagulative precipitation device connects sludge treatment equipment.
Preferably, in the treatment of Phosphorus Containing Waste Water system, the sludge treatment equipment includes folded spiral shell formula dewaterer.
Preferably, in the treatment of Phosphorus Containing Waste Water system, the sludge treatment equipment connects wastewater collection pond, described useless
Water collecting pit connects the pretreatment tank.
Phosphorus-contained wastewater treating method includes at least following steps：
S1, by between the pH value adjustment of waste water to 2.5 ± 0.5, addition reducing agent is reacted in waste water, and makes reaction
The oxidation-reduction potential in solution is between 250 ± 10mV afterwards；
S2 will pass through coagulating kinetics by the waste water of S1 processing；
S3, the waste water that coagulating sedimentation is obtained are filtered by sandfiltration pot；
S4 will pass through the pH value adjustment of the clear water of sandfiltration pot between 6-9.
Preferably, in the phosphorus-contained wastewater treating method, in S1, the reducing agent is sodium pyrosulfite.
Preferably, in the phosphorus-contained wastewater treating method, the S2 is comprised the following processes：
S21, make waste water pH value adjustment between 6-9, be then added to can be reacted less with phosphate radical production insoluble phosphorus
The coagulant of hydrochlorate, and reacted under blender effect；
S22 adds flocculant in the waste water by S21 processing, reacts 15-20min under blender effect；
S23 is separated by solid-liquid separation being introduced into sedimentation basin by the waste water of S22 processing.
Preferably, further include S5 in the phosphorus-contained wastewater treating method, to sedimentation basin generate sludge carry out concentration and
Dehydration, adds polyacrylamide in sludge during the dehydration process.
The advantages of technical solution of the present invention, is mainly reflected in：
This programme deft design, it is simple in structure, by the way that pretreatment pool is arranged and is pre-processed to waste water by reducing agent,
It interrupts macromolecular chain and obtains small molecule, to improve the coagulation effect of follow-up waste water, provided favorably for subsequent precipitation process
Condition, greatly improve the removal efficiency of organophosphor, ensure that final effluent quality.
This programme combines special sedimentation basin design, as inclined plate, to increase suspended matter when falling on inclined plate using tablet
Aisle spare, so as to accelerate the sinking speed of suspended matter, avoid suspended matter concentrate on a certain region cause siltation
Problem can reduce water intake velocity in combination with cloth hydroecium water distribution, reduce influence of the water impact to surface loading, reduce pair
The influence of suspended matter sedimentation effect.
Water distribution mouth is distributed on the side plate of cloth hydroecium while controlling the width of each settling zone for sedimentation basin, can ensure each
The uniformity of inclined plate region water distribution accelerates filtering rate, while avoiding disturbing to give full play to the filtration of each inclined plate
Settled suspended matter, influences sedimentation effect.
The inclined plate of sedimentation basin is tightly connected with pool wall and cloth hydroecium, can avoid sewage directly from inclined plate and pool wall and water distribution
Gap between room, which flows to above inclined plate, to be there is flow short circuit and runs mud problem, advantageously ensures that sedimentation effect；And it is each oblique
Plate is separately installed and easy to disassemble, and the repair and replacement of single inclined plate are convenient for relative to overall package, advantageously reduces zero
Part cost and maintenance difficulties.
Deflector is added on the inclined plate of sedimentation basin, ensure that water channel is uniform, avoids deformation, the sludge blockage of straight inclined plate
Situation.
Sedimentation basin clears up inclined plate by Accrete clearing device, can remove the sludge to deposit on inclined plate in time, avoid out
The problem of now blocking water stream channel, influencing outlet effect is conducive to extend service life.
It is larger compared with traditional sludge bucket height, situations such as sewage sludge storage volume is small, and moisture percentage in sewage sludge is high, the sedimentation basin of this technology
By reducing sludge bucket angle, raising sewage sludge storage area volume makes sludge reach the compression precipitating stage, reduces moisture percentage in sewage sludge,
Change sludge settling property, improve sludge concentration, in combination with mud scraper, the mobility of sludge, ensure that dirt when increasing spoil disposal
Bucket sludge discharge effects, realize sludge condensation in precipitation process, can reduce sludge condensation technique, reduce cost.
Description of the drawings
Fig. 1 is the system schematic of the present invention；
Fig. 2 is the vertical view of the sedimentation basin of the present invention；
Fig. 3 is the stereoscopic schematic diagram (partial structurtes that exhalant canal is only shown in figure) of the sedimentation basin of the present invention；
Fig. 4 is the schematic diagram of the cloth hydroecium of the sedimentation basin of the present invention；
Fig. 5 is the schematic diagram of the exhalant canal of the sedimentation basin of the present invention；
Fig. 6 be the present invention sedimentation basin in mud scraper structure sectional view.
Specific implementation mode
The purpose of the present invention, advantage and feature, by by the non-limitative illustration of preferred embodiment below carry out diagram and
It explains.These embodiments are only the prominent examples using technical solution of the present invention, it is all take equivalent replacement or equivalent transformation and
The technical solution of formation, all falls within the scope of protection of present invention.
In the description of scheme, it should be noted that term "center", "upper", "lower", "left", "right", "front", "rear",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings,
It is merely for convenience of describing and simplifying description, specific side must be had by not indicating or implying the indicated device or element
Position, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term " first ", " the
Two ", " third " is used for description purposes only, and is not understood to indicate or imply relative importance.Also, in the description of scheme
In, it is proximal end by the direction of proximal operator using operating personnel as reference, the direction far from operator is distal end.
The treatment of Phosphorus Containing Waste Water system disclosed below in conjunction with the accompanying drawings to the present invention is illustrated, and is used for dirty containing dye printing and dyeing
Water process includes at least sequentially connected as shown in Fig. 1
Pretreatment pool 40, in acid condition, making macromolecule contaminant reaction generate small molecule by reducing agent dirty
Contaminate object；
Coagulative precipitation device 50, for making pollutant form slightly solubility substance and being separated from water；
Sandfiltration pot 60, for removing the tiny suspended particulate substance in waste water；
Clear water regulating reservoir 70 is used for the pH value adjustment of clear water between 6-9.
Wherein, as shown in Fig. 1, the ORP for detecting ORP (oxidation-reduction potential) is provided in the pretreatment tank 40
Measurement device 401 and for making the well-mixed agitating device of medicament and waste water 402；The coagulative precipitation device 50 includes successively
Coagulating basin 501, flocculation basin 502 and the sedimentation basin 503 of connection, the coagulating basin 501 connect the pretreatment tank 40, the coagulation
Agitating device 5011,5021 and the detection device 5012,5022 for detecting pH value are both provided in pond 501 and flocculation basin 502.
The sedimentation basin 503 can be known various forms of sedimentation basins, preferably rectilinear sedimentation basin, also, such as
Shown in attached drawing 2 comprising pond body 1 is formed with water inlet 2 and water outlet 3 in the pond body 1, the water inlet 2 in pond body 1
Cloth hydroecium 4 be connected to, the both sides of the cloth hydroecium 4 are respectively formed settling zone 5, in each settling zone 5 it is tilting have one group it is flat
Capable inclined plate 6, the inclined plate 6 be tablet, the cloth hydroecium 4, settling zone 5 front end be provided with exhalant region 7, the exhalant region 7
It is connected to the settling zone 5, the water outlet 3 is arranged in bottom.
When work, after sewage is entered by water inlet 2 in cloth hydroecium 4, it is distributed in the settling zone 5 of its both sides, with dirt
Water continues to flow into, and sewage gradually rises to inclined plate 6, and the suspended matter in sewage contacts to stop after being blocked with inclined plate 6
It moves up and glides along inclined plate 6 under self gravitation effect and sink to the bottom of the pond body 1, clear water continues to rise to one
Determine to be flowed into the exhalant region 7 after height and be flowed out by water outlet 3.
From the point of view of specific, as shown in Fig. 3, the pond body 1 include from top to bottom organize integral top 11, middle part 12 and under
Portion 13, the cross sectional dimensions on the top 11 is more than the cross sectional dimensions at middle part 12, and it is divided into the areas Liang Ge by a partition board 9
Domain, one of region are connected to the space at the middle part 12, the space partition in another region and middle part 12, the middle part 12
It is obliquely installed, the lower part 13 is preferably sludge bucket, so as to effectively realize the discharge of sludge.
As shown in Fig. 3, the water inlet 2 is located at a high position for the pond body 1, is specifically located at one of the top 11
On side panel, and the axis direction of the water inlet 2 and the partition board 9 are perpendicular or parallel, while its inflow flow control
In 10mm/s or less.
As shown in Fig. 3, the cloth hydroecium 4 includes two opposite side plates 41, they are from 2 side of the water inlet
The inner wall of panel extend at the partition board 9 of the other side and the side panel at middle part 12, and the side plate 41 is from the upper of institute's pond body 1
Portion 11 extends to lower part 13, meanwhile, the side plate 41 can be that tablet can also be curved slab, preferably tablet, to described
The cross section of cloth hydroecium 4 is rendered as rectangle.
As shown in Fig. 4, the lower section on two side plates 41 of the cloth hydroecium 4 positioned at the inclined plate 6 is evenly distributed with one
Group water distribution mouth 42, one, increases the channel that the sewage in cloth hydroecium 4 enters settling zone 5, to ensure the uniform of water distribution
Property, in addition, when sludge is stacked into 6 end of inclined plate, remain to make sewage be distributed in settling zone 5 by the water distribution mouth 42.
In addition, in order to avoid settling zone 5 is wide, cause cloth hydroecium 4 and water distribution mouth 42 can not uniform fold the problem of, preferably
The width of each settling zone 5 is controlled between 1 ± 0.2m, so as to ensure the uniformity of water distribution.
The inclined plate 6 can be the smooth plank in various feasible surfaces, such as PVC board or PP plates, each inclined plate 6
It is arranged separately in the settling zone, the angle with horizontal plane is between 50 ° -60 °, so as to play best filtering effect
Fruit；Meanwhile side plate 41 sealed connection or microgap of each inclined plate 6 with the inner wall and cloth hydroecium 4 of the pond body 1 are set
It sets, such as their gap is not more than 5mm, specifically when installation, on pool wall and installation can be provided on the side plate of cloth hydroecium 41
Holder, adjacent stent are spaced in 50mm or so, and inclined plate 6 is separately connected two opposite holders in position by bolt, when
When using being tightly connected, as shown in Fig. 2, groove can be opened up on pond body inner wall and side plate 41, each inclined plate 6 is by that can be clamped
Rubber weather strip 14 in a groove is fastened on groove.
Further, inclined plate 6 deforms in order to prevent, so as to cause the gap variation between adjacent inclined plate, influences the equal of water channel
The problem of even property, is provided with one group of deflector (not shown) in the inclined plate 6 on the face of the bottom of pond body 1, described
The width of deflector is laid along water (flow) direction in 50mm or so, so as to increase the intensity of inclined plate 6, avoids it by flow
Impact deforms upon.
As shown in attached drawing 2, attached drawing 3, each settling zone 5 is connected by an at least exhalant canal 8 with the exhalant region 7
Logical, specifically, the exhalant canal 8 is located at the top of 5 middle swash plate 6 of the settling zone, and top is not higher than the water inlet 2
Top, in addition, since the exhalant canal 8 is installed in pond body, since pond body sedimentation or other factors lead to both sides effluent weir
Plate appearance is not contour to be caused to generate uneven, the Biased flow phenomenon of water outlet in its operational process, therefore the both sides of the exhalant canal 8 go out
The height of weir board 81 is adjustable, is realized by such as lower structure：
As shown in Fig. 5, the exhalant canal 8 include saddle 82 and it is disposed thereon with water outlet weir plate 81 be the slot of side plate
Type water channel hangs down on the top surface of the saddle 82 and is equipped with one group of stay bolt 83, and being provided on the substrate 84 of the groove profile water channel can quilt
83 perforative through-hole of the stay bolt when actual installation, is first installed a holding nut 85 and is made on each stay bolt 83
They are contour, are then run through the through-hole on pedestal 84 by a stay bolt 83 respectively, and the pedestal 84 described in one group to prop up at this time
It is support to support nut 85, when necessary, finally, then with each stay bolt 83 that is spirally connected of fixing nut 86 is fixed 84 position of pedestal.When
When needing to adjust the height of water outlet weir plate 81, the height of the holding nut 85 and fixing nut 86 of corresponding side is adjusted, two can be made
The water outlet weir plate 81 of side keeps contour.
In addition, in order to solve the problems, such as to occur sludge effect of reservoir siltation filter effect on the inclined plate 6, as shown in Fig. 3,
The bottom of the inclined plate 6 is additionally provided with desilting equipment 10, and the desilting equipment 10 includes one group of tracheae for carrying venthole 102
101, the tracheae 101 is preferably UPVC pipes, naturally it is also possible to be the tubing of other materials, be arranged under the inclined plate 6
The position of square 400mm ± 50mm, and it is parallel with the axis of water inlet 1 to be preferably provided with direction, (is not shown in figure by steam line
Go out) connection compression gas suppling device (not shown), by being supplied to the tracheae 101, gas is by the venthole 102
To form bubble in the bottom of inclined plate 6, bubble generates each inclined plate 6 strong disturbance in uphill process for blowout, so as to
So that the sludge to deposit on inclined plate 6 is generated power because of vibrations, drives sludge settling, realize the effect of dredging.
Finally, when the lower part 13 is sludge bucket, as shown in Fig. 6, the inclination angle@of the side wall 131 of the sludge bucket is (dirty
The angle of bucket side wall 131 and sludge bottom sheet 132) between 15 ± 5 °, to significantly increase the volume of sludge bucket, have
Conducive to the enrichment factor of raising sludge；Meanwhile the sedimentation basin of the high sludge condensation rate is additionally provided with mud scraper 20, the mud scraper
20 include driving motor 201, transmission shaft 202 and scraper 203, and the motor 201 is set to the top of the sedimentation basin, the biography
Moving axis 202 extends from top to the bottom position of the sludge bucket, and the distribution of the scraper 203 is in umbrella, inclination angle and the side
The inclination angle of wall 131 is close, so as to be stirred to sludge by the vulgar rotation of scraper 203, mud is made to have enough
Mobility ensure that the validity of spoil disposal.
As shown in Fig. 1, the sedimentation basin 503 connects intermediate pool 90, is provided in the intermediate pool 90 for controlling water
The ball-cock assembly water level controller 901 of position, the intermediate pool 90 by sandfiltration pot 60 described in the piping connection with delivery pump 902,
The sandfiltration pot 60 connects the clear water regulating reservoir 70, and blender 701, ball-cock assembly water level are provided in the clear water regulating reservoir 70
Controller 702, the PH test machines 703 for surveying PH and the emptying pump 704 for discharging clear water；Also, the sedimentation basin 503
Sludge treatment equipment 80 is also connected by the pipeline with sludge pump 100.
As shown in Fig. 1, the sludge treatment equipment 80 includes sewage sludge storage pond 801, for carrying out sludge condensation, wherein
It is provided with sludge pump 803, and is connected by spoil disposal pipeline and folds spiral shell formula dewaterer 802, for carrying out sludge dewatering, the folded spiral shell formula
Dewaterer 802 connects wastewater collection pond 30, and ball-cock assembly water level controller 301 is provided in the wastewater collection pond 30, described useless
It is provided with elevator pump 302 in water collecting pit 30, and the pretreatment tank 40 is connected by pipeline.
When above-mentioned treatment of Phosphorus Containing Waste Water system works, process is as follows：
S0 collects phosphorus-containing wastewater in wastewater collection pond 30, and then boosted pump 302 is delivered in pretreatment pool 40.
S1 is added sulfuric acid by between the pH value adjustment of waste water in pond to 2.5 ± 0.5 in pretreatment pool 40, preferably exists
2.5, reducing agent is then added in waste water and is reacted under the stirring of agitating device, the reducing agent is preferably burnt sulfurous
Sour sodium occurs reduction reaction by the pollutant of sodium pyrosulfite and macromolecular chain, can be broken into bigger molecule chain in waste water
Small molecule, to provide condition for subsequent coagulation, wherein the usage amount of the sodium pyrosulfite and Pollutants in Wastewater are dense
Spend related, usage amount determined generally according to the small experiment in laboratory, for example, when in sewage total phosphorus be 800mg/L, total organic phosphorus is
When 15mg/L, the additive amount of the sodium pyrosulfite controls the reaction time at 30 minutes or so in 500mg/L, works as reaction
Stopping reaction when the oxidation-reduction potential in solution is between 250 ± 10mV afterwards.
S2 will pass through coagulating kinetics by the waste water of S1 processing, and detailed process is as follows,
S21 makes the waste water after being reacted in pretreatment pool 40 from coagulating basin is flow to, first by adding sodium hydroxide by pH value
It is adjusted between 6-9, preferably 9 or so, then puts into the coagulation that can at least react production insoluble phosphate with phosphate radical
Agent, and reacted under blender effect, the coagulant is preferably Ca (OH)2, to according to chemical equation：
5Ca2++7OH-+3H2PO4=Ca5(OH)(PO4)3+6H2O；
Ca2++CO3 2-=CaCO3；
Ca(OH)2+PO4 3-—Ca3(PO4)2+OH-It is reacted, the reaction time controls between 15-20min, and according to
Amount of pollutant in the sewage of above-described embodiment, the Ca (OH)2Content be preferably 25g/L, and by control pH value 9 a left side
The right side is to make slightly solubility substance C a3(PO4)2Solubility it is minimum, preferable coagulation effect can be obtained, be it is subsequent effectively
Precipitation provides guarantee.
S22, flocculant, preferably polyacrylamide is added from flowing in flocculation basin in waste water in flocculation basin in coagulating basin,
And 15-20min is reacted under blender effect, so that the grain size of slightly solubility particulate matter further becomes larger in waste water, to carry
High sedimentation effect.
S23, the waste water gravity flow handled by flocculation basin, which enters in sedimentation basin, to be separated by solid-liquid separation, and sludge is arrived along inclined plate sedimentation
In sludge bucket, supernatant liquor overflow enters intermediate pool.
S3, then the clear liquid in intermediate pool is introduced into sandfiltration pot through delivery pump and is filtered, further remove relatively fine hang
Floating particles object enters clear water regulating reservoir after reducing the phosphorus concentration in water outlet.
PH value under the stirring action of blender, is adjusted to by S4 in clear water reserviors by adding sodium hydroxide and sulfuric acid
Between 6-9, emitted through emptying pump after final outflow water is up to standard.
S5, the sludge in efficient sedimentation tank sludge bucket are delivered to sewage sludge storage pond through sludge pump, in sewage sludge storage pond into
Row sludge condensation；Stacked sludge dewatering machine is delivered to through sludge pump carry out sludge dewatering again later；In order to further increase dirt
Appropriate polyacrylamide is added in the dehydrating effect of mud in Stacked sludge dewatering machine, the dewatered sludge outward transport disposition after press filtration,
Pressing filtering liquid is back to collecting pit, so as to effectively reduce sewage discharge.
Still there are many embodiment, all technical sides formed using equivalents or equivalent transformation by the present invention
Case is within the scope of the present invention.
Claims (10)
1. treatment of Phosphorus Containing Waste Water system, it is characterised in that：Including at least sequentially connected
Pretreatment pool（40）, in acid condition, making macromolecule contaminant reaction generate small molecule pollution by reducing agent
ORP measurement devices are arranged inside in object（401）And agitating device（402）；
Coagulative precipitation device（50）, for making pollutant form slightly solubility substance and being separated from water；
Sandfiltration pot（60）, for removing the tiny suspended particulate substance in waste water；
Clear water regulating reservoir（70）, it is used for the pH value adjustment of clear water between 6-9.
2. treatment of Phosphorus Containing Waste Water system according to claim 1, it is characterised in that：The coagulative precipitation device（50）Including
Sequentially connected coagulating basin（501）, flocculation basin（502）And sedimentation basin（503）, the sedimentation basin（503）For rectilinear sedimentation basin,
It includes the inclined plate for filtering.
3. treatment of Phosphorus Containing Waste Water system according to claim 2, it is characterised in that：The sedimentation basin（503）Further include leading to
It crosses bubble and clean Accrete clearing device is carried out to the sludge on the inclined plate.
4. treatment of Phosphorus Containing Waste Water system according to claim 1, it is characterised in that：The coagulative precipitation device（50）Connection
Sludge treatment equipment（80）.
5. treatment of Phosphorus Containing Waste Water system according to claim 4, it is characterised in that：The sludge treatment equipment（80）Including
Folded spiral shell formula dewaterer（802）.
6. treatment of Phosphorus Containing Waste Water system according to claim 4, it is characterised in that：The sludge treatment equipment（80）Connection
Wastewater collection pond（30）, the wastewater collection pond（30）Connect the pretreatment tank（40）.
7. phosphorus-contained wastewater treating method, it is characterised in that：Including at least following steps：
S1, by between the pH value adjustment of waste water to 2.5 ± 0.5, in waste water reducing agent is added is reacted, and is made molten after reaction
Oxidation-reduction potential in liquid is between 250 ± 10mV；
S2 will pass through coagulating kinetics by the waste water of S1 processing；
S3, the waste water that coagulating sedimentation is obtained are filtered by sandfiltration pot；
S4 will pass through the pH value adjustment of the clear water of sandfiltration pot between 6-9.
8. phosphorus-contained wastewater treating method according to claim 7, it is characterised in that：In S1, the reducing agent is burnt sub-
Sodium sulphate.
9. phosphorus-contained wastewater treating method according to claim 7, it is characterised in that：The S2 is comprised the following processes：
S21, make waste water pH value adjustment between 6-9, be then added to can be reacted less with phosphate radical production insoluble phosphate
Coagulant, and blender effect under reacted；
S22 adds flocculant in the waste water by S21 processing, reacts 15-20min under blender effect；
S23 is separated by solid-liquid separation being introduced into sedimentation basin by the waste water of S22 processing.
10. phosphorus-contained wastewater treating method according to claim 7, it is characterised in that：Further include S5, sedimentation basin is generated
Sludge is concentrated and is dehydrated, and adds polyacrylamide in sludge during the dehydration process.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110040871A (en) * | 2019-04-08 | 2019-07-23 | 浙江卓锦环保科技股份有限公司 | Purifying method and equipment are removed in a kind of river water dephosphorization |
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Application publication date: 20181102 |