CN106517665A - Acid pickling and passivating wastewater treatment system - Google Patents
Acid pickling and passivating wastewater treatment system Download PDFInfo
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- CN106517665A CN106517665A CN201611126932.6A CN201611126932A CN106517665A CN 106517665 A CN106517665 A CN 106517665A CN 201611126932 A CN201611126932 A CN 201611126932A CN 106517665 A CN106517665 A CN 106517665A
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- tank
- pond
- microvovtex
- waste water
- acid wash
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- 239000002253 acid Substances 0.000 title claims abstract description 24
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 22
- 238000005554 pickling Methods 0.000 title abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 230000003647 oxidation Effects 0.000 claims abstract description 28
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 28
- 239000002351 wastewater Substances 0.000 claims abstract description 25
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 238000005352 clarification Methods 0.000 claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 7
- 239000001301 oxygen Substances 0.000 claims abstract description 7
- 239000004576 sand Substances 0.000 claims abstract description 6
- 238000000926 separation method Methods 0.000 claims abstract description 6
- 238000004062 sedimentation Methods 0.000 claims abstract description 5
- 238000000151 deposition Methods 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 21
- 238000002161 passivation Methods 0.000 claims description 21
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 9
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 6
- 238000001556 precipitation Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000008394 flocculating agent Substances 0.000 claims description 4
- 230000002906 microbiologic effect Effects 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract description 6
- 235000011941 Tilia x europaea Nutrition 0.000 abstract description 6
- 239000004571 lime Substances 0.000 abstract description 6
- 239000008267 milk Substances 0.000 abstract description 6
- 210000004080 milk Anatomy 0.000 abstract description 6
- 235000013336 milk Nutrition 0.000 abstract description 6
- FZGIHSNZYGFUGM-UHFFFAOYSA-L iron(ii) fluoride Chemical compound [F-].[F-].[Fe+2] FZGIHSNZYGFUGM-UHFFFAOYSA-L 0.000 abstract 1
- 239000010802 sludge Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 239000001110 calcium chloride Substances 0.000 description 3
- 229910001628 calcium chloride Inorganic materials 0.000 description 3
- 239000000920 calcium hydroxide Substances 0.000 description 3
- 235000011116 calcium hydroxide Nutrition 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000010786 composite waste Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 229910052586 apatite Inorganic materials 0.000 description 1
- 238000002306 biochemical method Methods 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 229910052588 hydroxylapatite Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 description 1
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 239000010457 zeolite 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
- 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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses an acid pickling and passivating wastewater treatment system. The acid pickling and passivating wastewater treatment system comprises a mechanical neutralization reaction tank (1) and is characterized in that passivating wastewater treated by the mechanical neutralization reaction tank (1) is conveyed to a microvortex clarification tank (2), is conveyed to a biochemical anoxic tank (3) after clarification through a reaction in the microvortex clarification tank (2), flows automatically into a biological contact oxidation tank (4) with dissolved oxygen controlled at 3.0 g/l or higher after treated by the biochemical anoxic tank (3), is conveyed to a radial flow type secondary sedimentation tank (5) for solid-liquid separation after treated by the a biological contact oxidation tank (4) and is sequentially treated by an intermediate water tank (6), a sand filter (7) and an activated carbon filter (8) after treated by the secondary sedimentation tank (5), and obtained clear water is conveyed to a clear water tank (9). The same fluoride iron removal efficiency can be realized by combining the mechanical neutralization reaction tank with the microvortex clarification tank, the trouble for adding lime milk is avoided, and the acid pickling and passivating wastewater treatment system has the characteristics of high practicability, low operation cost and little investment and is suitable for being popularized and used.
Description
Technical field
The present invention relates to acid wash passivation technical field of waste water processing, specifically one kind can solve the problem that existing system runs
The acid wash passivation Waste Water Treatment of the sludge drift mud of middle generation, the phenomenon such as spoil disposal is smooth, lime milk dosing is relatively difficult.
Background technology
The sludge that existing acid wash passivation Waste Water Treatment is also easy to produce when running floats mud, spoil disposal smooth, lime milk dosing
The phenomenon such as relatively difficult, it is difficult to meet use requirement.And dosing when removing Natural zeolite of existing acid wash passivation Waste Water Treatment
Milk of lime is more bothered.
The content of the invention
The purpose of the present invention is the problem existed for prior art, there is provided one kind is produced in can solve the problem that existing system operation
The acid wash passivation Waste Water Treatment of raw sludge drift mud, the spoil disposal phenomenon such as smooth, lime milk dosing is relatively difficult.
The purpose of the present invention is solved by the following technical programs：
A kind of acid wash passivation Waste Water Treatment, including mechanical neutralization reaction pond, it is characterised in that：Described machinery neutralization
Reaction tank is sent to microvovtex depositing reservoir after passivating wastewater is processed, biochemical anoxic pond is sent into after the reaction clarification of microvovtex depositing reservoir, biochemical
Gravity flow after anoxic pond process enters biological contact oxidation pond of the dissolved oxygen control in more than 3.0g/l, biological contact oxidation pond process
Sending into Radial Flow Secondary Sedimentation Tank afterwards carries out separation of solid and liquid, Jing after second pond process sequentially sends into intermediate pool, sand filter, activated carbon
Clear water is obtained after filter process and is sent to clear water reserviors.
Add NaOH solution blunt to adjust when agitator in the mechanical neutralization reaction pond is stirred to passivating wastewater
Change the pH value of waste water.
Passivating wastewater after described mechanical neutralization reaction pond process adds calcium chloride molten in being sent to the way of microvovtex depositing reservoir
Liquid, and the fluorine ion that flocculating agent is added in microvovtex depositing reservoir to go in eliminating water.
The flow velocity of intaking of the microvovtex depositing reservoir is 0.8-1.0 meter per seconds, goes out for the upflow velocity at 3-5 meter per seconds, cone angle
Upflow velocity at water pipe is 4-6 mm/seconds, minute time of staying 10-15.
Insoluble matter precipitation in the microvovtex depositing reservoir is sent into sludge-tank and dry mud outward transport is obtained Jing after filter press process.
Elastic filler is configured with described biological contact oxidation pond using the carrier as aerobic microbiological.
It is clear that wastewater fraction after described biological contact oxidation pond process carries out reaction in being back to microvovtex depositing reservoir again
Clearly.
Described mechanical neutralization reaction pond and biological contact oxidation pond send into air using blower fan when using.
The present invention has the following advantages compared to existing technology：
The present invention replaces the neutralization precipitation pond of original system by adopting mechanical neutralization reaction pond and microvovtex depositing reservoir, removes
Fluorine ion substitutes milk of lime with calcium chloride, can reach same fluoride ion removing efficiency, and eliminate lime milk dosing
Trouble, obtains good operational effect；With practical, operating cost is low, small investment the characteristics of, suitably promote the use of.
Description of the drawings
Schematic diagram of the accompanying drawing 1 for the acid wash passivation Waste Water Treatment of the present invention.
Wherein：1 mechanical neutralization reaction pond；2 microvovtex depositing reservoirs；3 biochemical anoxic ponds；4 biological contact oxidation ponds；
5 second ponds；6 intermediate pools；7 sand filters；8 active carbon filters；9 clear water reserviors；10 blower fans；11 sludge
Pond；12 filter presses.
Specific embodiment
The present invention is further illustrated with embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1：A kind of acid wash passivation Waste Water Treatment, including mechanical neutralization reaction pond 1, mechanical neutralization reaction pond
1 passivating wastewater is processed after be sent to microvovtex depositing reservoir 2, biochemical anoxic pond 3 is sent into after the reaction clarification of microvovtex depositing reservoir 2, it is biochemical to lack
Gravity flow after oxygen pond 3 is processed enters biological contact oxidation pond 4 of the dissolved oxygen control in more than 3.0g/l, at biological contact oxidation pond 4
After reason send into Radial Flow Secondary Sedimentation Tank 5 carry out separation of solid and liquid, Jing second pond 5 process after sequentially send into intermediate pool 6, sand filter 7,
Clear water is obtained after the process of active carbon filter 8 and is sent to clear water reserviors 9.Specifically, the agitator in mechanical neutralization reaction pond 1 is to blunt
Change and NaOH solution is added when waste water is stirred to adjust the pH value of passivating wastewater, it is blunt after the process of mechanical neutralization reaction pond 1
Change during waste water is sent to the way of microvovtex depositing reservoir 2 and add calcium chloride solution, and flocculating agent is added in microvovtex depositing reservoir 2 to go eliminating water
In fluorine ion, the insoluble matter precipitation in microvovtex depositing reservoir 2 sends into sludge-tank 11 and obtains outside dry mud Jing after the process of filter press 12
Fortune；Elastic filler is configured with biological contact oxidation pond 4 using the carrier as aerobic microbiological, while biological contact oxidation pond 4
Wastewater fraction after process carries out reaction clarification in being back to microvovtex depositing reservoir 2 again.In above-mentioned processing system, machinery neutralization
Reaction tank 1 and biological contact oxidation pond 4 send into air using blower fan 10 when using.And the water inlet of the microvovtex depositing reservoir 2 for being adopted
Flow velocity is 3-5 meter per seconds, the upflow velocity at cone angle be 0.8-1.0 meter per seconds, the upflow velocity of water outlet pipe part be 4-6 mm/seconds,
Minute time of staying 10-15；High efficiency reactor of the microvovtex depositing reservoir 2 using cone, little with volume, capacity of outlet water is high,
The various medicaments for adding in reactor, can carry out fully thoroughly vortex mixing reaction simultaneously, and can remove big with water
Grain sediment, the sediment body refuse to precipitating carry out periodic exhaustion and go out in vitro.
When the acid wash passivation Waste Water Treatment of the present invention is used, passivation for stainless steel waste water enters wastewater equalization pond, the pond
Play regulating pondage, the effect of balanced water quality.Liquid level gauge is set in pond, the operation of waste water lifting pump is controlled.Composite waste Jing machines
The mechanical agitator of tool neutralization reaction pond 1 adds NaOH solution and adjusts pH value while stirring, make phosphorus generate hydroxyl under this pH value
Base apatite is removing；Calcium chloride solution is added during waste water after stir process is sent to microvovtex depositing reservoir 2, and micro-
Flocculating agent (PAC, PAM) is added in whirlpool depositing reservoir 2, reaction is sufficiently mixed in microvovtex depositing reservoir 2 and is generated calcirm-fluoride, hydroxy-apatite
The insoluble sediment such as stone, magnesium carbonate, eliminates the fluorine ion of the overwhelming majority in water by precipitation；Adjust in 2 water outlet of microvovtex depositing reservoir
Individually or with the composite waste of 4 partial reflux of biological contact oxidation pond into biochemical anoxic pond 3, biochemical anoxic pond 3 after whole pH value
From inflow biological contact oxidation pond 4 after process；Aerobic biochemical technique in biological contact oxidation pond 4, with load height, does not produce
The advantages of sludge bulking, facility small volume, stable and reliable operation, convenient management, the dissolved oxygen control in biological contact oxidation pond 4
In more than 3.0g/l, whole biochemical treatment process is to rely on the various aerobic microbiologicals being attached on filler come what is completed, makes
Organic substance obtains further oxidation Decomposition, while in the case of carbonization tends to completely, contacting oxygen by aerobe
Change is acted on, and the organic substance in sewage is converted into NO2-N、NO3- N, biological contact oxidation pond 4 adopt biological contact oxidation process,
The method has biomass high, and volumetric loading is big, and anti impulsion load ability is strong, does not produce sludge bulking, and surplus sludge volume is few, place
The advantages of reason effect stability, convenient operation and management, configuration novel elastic filler in biological contact oxidation pond 4, in this, as aerobic
Microorganism carrier, the specific surface area of this filler are big, easy to be filmed and demoulding, with certain soft elastic, not easy to knot groups；Biology connects
4 water outlet of tactile oxidation pond is precipitated into second pond 5；As the water outlet after the process of biological contact oxidation pond 4 contains the biology that comes off
The fine grained impurity that film and other a small amount of pre-treatments are not removed, so waste water must carry out separation of solid and liquid；Waste water is in radial-flow two
After heavy pond 5 carries out separation of solid and liquid, sequentially send into acquisition clear water after intermediate pool 6, sand filter 7, active carbon filter 8 are processed and send
Toward clear water reserviors 9.
The actual effect of the acid wash passivation Waste Water Treatment of present invention offer is provided below by data.
Acid wash passivation waste water raw water influent quality：CODCrFor 736mg/L, total nitrogen be 1380mg/L, total phosphorus be 5.1mg/L,
It is 5.6 for 130mg/L, pH value that ammonia nitrogen is 27.4mg/L, SS；Wastewater effluent water quality after process：CODCr(press for 19.9mg/L
400mg/L design), NH3- N is 9.93mg/L (designing by 50mg/L), total phosphorus for 2.87mg/L (pressing 10mg/L designs), total nitrogen
For 5.23mg/L (designing by 10mg/L), chloride be 25mg/L, total chromium be 0.1mg/L, nickel be that 0.138mg/L, iron are
0.618mg/L, fluoride are 5.5mg/L, nitrate nitrogen is 1.18mg/L, nitrite nitrogen is 0.085mg/L, sulfate is
160mg/L, turbidity are 3.47mg/L, total alkalinity is 563mg/L, total alkalinity is 40.5mg/L, colourity is 32 times, pH value is
7.36th, salt content is 3500mg/L, meets three-level discharge and receives pipe standards.
The present invention replaces the neutralization precipitation pond of original system by adopting mechanical neutralization reaction pond and microvovtex depositing reservoir, removes
Fluorine ion substitutes milk of lime with calcium chloride, can reach same fluoride ion removing efficiency, and eliminate lime milk dosing
Trouble, obtains good operational effect；With practical, operating cost is low, small investment the characteristics of, suitably promote the use of.
Above example technological thought only to illustrate the invention, it is impossible to which protection scope of the present invention is limited with this, it is every
According to technological thought proposed by the present invention, any change done on the basis of technical scheme, the scope of the present invention is each fallen within
Within；The technology that the present invention is not directed to can be realized by prior art.
Claims (8)
1. a kind of acid wash passivation Waste Water Treatment, including mechanical neutralization reaction pond (1), it is characterised in that：In described machinery
Microvovtex depositing reservoir (2) is sent to after processed passivating wastewater, is sent into after microvovtex depositing reservoir (2) reaction clarification biochemical
Anoxic pond (3), gravity flow after biochemical anoxic pond (3) is processed control the biological contact oxidation pond in more than 3.0g/l into dissolved oxygen
(4) Radial Flow Secondary Sedimentation Tank (5) is sent into after, biological contact oxidation pond (4) is processed carries out separation of solid and liquid, Jing after second pond (5) process
Sequentially send into acquisition clear water after intermediate pool (6), sand filter (7), active carbon filter (8) are processed and be sent to clear water reserviors (9).
2. acid wash passivation Waste Water Treatment according to claim 1, it is characterised in that：The mechanical neutralization reaction pond
(1) NaOH solution is added when the agitator in is stirred to passivating wastewater to adjust the pH value of passivating wastewater.
3. acid wash passivation Waste Water Treatment according to claim 1, it is characterised in that：Described mechanical neutralization reaction pond
(1) passivating wastewater after processing adds calcium chloride solution in being sent to the way of microvovtex depositing reservoir (2), and in microvovtex depositing reservoir (2)
The fluorine ion that flocculating agent is added to go in eliminating water.
4. the acid wash passivation Waste Water Treatment according to claim 1 or 3, it is characterised in that：The microvovtex depositing reservoir (2)
Water inlet flow velocity be 3-5 meter per seconds, the upflow velocity at cone angle be 0.8-1.0 meter per seconds, the upflow velocity of water outlet pipe part be 4-6 millis
Meter per second, minute time of staying 10-15.
5. the acid wash passivation Waste Water Treatment according to claim 1 or 3, it is characterised in that：The microvovtex depositing reservoir (2)
In insoluble matter precipitation send into sludge-tank (11) and the outward transport of dry mud obtained Jing after filter press (12) process.
6. acid wash passivation Waste Water Treatment according to claim 1, it is characterised in that：Described biological contact oxidation pond
(4) elastic filler is configured with using the carrier as aerobic microbiological.
7. the acid wash passivation Waste Water Treatment according to claim 1 or 6, it is characterised in that：Described biological contact oxidation
Changing during the wastewater fraction after pond (4) are processed is back to microvovtex depositing reservoir (2) carries out reaction clarification again.
8. the acid wash passivation Waste Water Treatment according to claim 1 or 6, it is characterised in that：Described machinery neutralization is anti-
Ying Chi (1) and biological contact oxidation pond (4) send into air using blower fan (10) when using.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611126932.6A CN106517665A (en) | 2016-12-09 | 2016-12-09 | Acid pickling and passivating wastewater treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611126932.6A CN106517665A (en) | 2016-12-09 | 2016-12-09 | Acid pickling and passivating wastewater treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106517665A true CN106517665A (en) | 2017-03-22 |
Family
ID=58342802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611126932.6A Pending CN106517665A (en) | 2016-12-09 | 2016-12-09 | Acid pickling and passivating wastewater treatment system |
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|---|---|---|---|---|
| CN1616362A (en) * | 2004-07-28 | 2005-05-18 | 汤世伟 | Automatic processing process for acid waste water containing fluorine |
| CN2910912Y (en) * | 2005-02-04 | 2007-06-13 | 王玉清 | High-efficiency, energy-saving, microvovtex coagulation settling clarification tank |
| CN101215052A (en) * | 2007-12-28 | 2008-07-09 | 张大群 | Technique and device for treating sewage to reclaimed water |
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