CN110451726A - Photovoltaic stainless steel waste water total nitrogen handles recycling set device - Google Patents
Photovoltaic stainless steel waste water total nitrogen handles recycling set device Download PDFInfo
- Publication number
- CN110451726A CN110451726A CN201910752675.4A CN201910752675A CN110451726A CN 110451726 A CN110451726 A CN 110451726A CN 201910752675 A CN201910752675 A CN 201910752675A CN 110451726 A CN110451726 A CN 110451726A
- Authority
- CN
- China
- Prior art keywords
- water
- preposition
- reactor
- stainless steel
- calcium carbonate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 22
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 19
- 239000010935 stainless steel Substances 0.000 title claims abstract description 19
- 238000004064 recycling Methods 0.000 title claims abstract description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims description 32
- 229910052757 nitrogen Inorganic materials 0.000 title claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 114
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 68
- 239000010865 sewage Substances 0.000 claims abstract description 35
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 34
- 239000010802 sludge Substances 0.000 claims abstract description 16
- 239000013049 sediment Substances 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 238000007872 degassing Methods 0.000 claims description 8
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 5
- 229910052791 calcium Inorganic materials 0.000 claims description 5
- 239000011575 calcium Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 4
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 abstract description 13
- 229910001424 calcium ion Inorganic materials 0.000 abstract description 13
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract description 3
- 230000002308 calcification Effects 0.000 abstract description 3
- 239000003814 drug Substances 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 208000004434 Calcinosis Diseases 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 102000005701 Calcium-Binding Proteins Human genes 0.000 description 1
- 108010045403 Calcium-Binding Proteins Proteins 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 230000001546 nitrifying effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 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
- C02F11/00—Treatment of sludge; Devices therefor
-
- 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
- C02F1/006—Water distributors either inside a treatment tank or directing the water to several treatment tanks; Water treatment plants incorporating these distributors, with or without chemical or biological tanks
-
- 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
- C02F1/66—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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
Abstract
The invention discloses a kind of photovoltaic stainless steel waste water total nitrogens to handle recycling set device, including preposition calcium carbonate reactor, preposition sand-water separating device and denitrification reactor, preposition calcium carbonate reactor is equipped with the water inlet entered for treatment sewage, preposition calcium carbonate reactor is connected to by outlet pipe with preposition sand-water separating device, preposition sand-water separating device is equipped with the sediment ejection opening being discharged for silt, preposition sand-water separating device is connected to by drainage pipeline with the denitrogenation water inlet pipe of denitrification reactor, the water outlet of denitrification reactor is respectively equipped with sewage backflow pipe and water outlet, sewage backflow pipe is connected to preposition calcium carbonate reactor, the invention enables denitrification sludge calcifications to be avoided, the risk of biochemical system collapse substantially reduces；And water inlet and recirculation water can be sufficiently mixed, inlet flow-patterm can be adjusted；And the removal of calcium ion does not need additionally to add medicament, the carbonate in water outlet can be fully used, and save raw material, reduce cost of sewage disposal, energy conservation and environmental protection.
Description
Technical field
The present invention relates to a kind of wastewater processing technology, in particular to a kind of photovoltaic stainless steel waste water total nitrogen processing complete set is set
It is standby.
Background technique
In photovoltaic stainless steel waste water contain a large amount of nitrate and hydrofluoric acid, in wastewater treatment process, fluorine ion because
Its stronger corrosivity, it is necessary to be removed prior to nitrate anion.Fluorine ion is usually removed by way of introducing calcium ions precipitate at present,
In order to control the concentration of fluorine ion in reduced levels, calcium must be added excessively, be caused after defluorinating process in waste water containing higher
The calcium ion of concentration.
Existing photovoltaic stainless steel waste water total nitrogen treatment process directly passes through the waste water after fluorine removal containing higher concentration calcium ion
After crossing simple pH adjusting, it is directly entered denitrogenation biochemical system.
For denitrogenation biochemical system, water inlet endangers very big rich in calcium ion.Because carbon source is final in anti-nitration reaction
Product is to will form precipitation of calcium carbonate after carbonate, with calcium binding, after these heavys are deposited in reactor largely accumulation
It can not only make activated sludge calcification, can also cause pool wall fouling, line clogging and a series of serious problems such as sludge is hardened,
Eventually lead to the collapse of denitrification biochemical system.
Summary of the invention
In order to overcome drawbacks described above, the present invention provides a kind of photovoltaic stainless steel waste water total nitrogens to handle recycling set device, should
Photovoltaic stainless steel waste water total nitrogen handles recycling set device.
The present invention is in order to solve technical solution used by its technical problem: a kind of photovoltaic stainless steel waste water total nitrogen is processed into
Setization equipment, including preposition calcium carbonate reactor, preposition sand-water separating device and denitrification reactor, the preposition calcium carbonate reactor
It is equipped with the water inlet entered for treatment sewage, preposition calcium carbonate reactor is connected by outlet pipe and preposition sand-water separating device
Logical, preposition sand-water separating device is equipped with the sediment ejection opening being discharged for silt, and preposition sand-water separating device is anti-by drainage pipeline and denitrogenation
The denitrogenation water inlet pipe of device is answered to be connected to, the water outlet of denitrification reactor is respectively equipped with sewage backflow pipe and water outlet, sewage backflow pipe
It is connected to preposition calcium carbonate reactor.
As a further improvement of the present invention, pushing flow mixer is additionally provided in the preposition calcium carbonate reactor.
As a further improvement of the present invention, it is anti-to be located at preposition calcium carbonate for the water outlet of the water inlet and sewage backflow pipe
Device upper end side is answered, preposition sand-water separating device is connected to the preposition calcium carbonate reactor other side.
As a further improvement of the present invention, preposition sand-water separating device lower end is formed with the funnel-form knot that internal diameter gradually tapers up
Structure, sediment ejection opening are the horizontal pipe being connected to the funnel-shaped structure lower end.
As a further improvement of the present invention, preposition sand-water separating device upper end forms preposition water outlet, the preposition water outlet
It is connected to by drainage pipeline with denitrogenation water inlet pipe.
As a further improvement of the present invention, it is additionally provided between the drainage pipeline and denitrogenation water inlet pipe of preposition sand-water separating device
Intake pump.
As a further improvement of the present invention, the denitrification reactor lower layer be equipped with air inlet water distributor, air inlet water distributor with
Denitrogenation water inlet pipe is connected to, and uniform parts have several water distribution mouths on air inlet water distributor, and denitrification reactor middle layer forms denitrification reaction area,
The water outlet of denitrification reactor layer disposed thereon.
As a further improvement of the present invention, the denitrification reactor, which is located above denitrification reaction area, is additionally provided with sludge degassing
Component, sludge degassing component can deaerate the sludge that denitrification reaction area floats.
As a further improvement of the present invention, the upper end of the denitrification reactor is additionally provided with effluent weir, bottom on the outside of effluent weir
Face is equipped with separator for mud and water.
The beneficial effects of the present invention are: the present invention before sewage enters efficient denitrification reactor by being introduced into preposition carbonic acid
In calcium reactor, the phegma of sewage and sewage backflow pipe is sufficiently mixed in preposition calcium carbonate reactor, calcium ion in sewage
It is sufficiently reacted with bicarbonate ion, dissolution carbonic acid and the carbanion in phegma and generates calcium carbonate solid, calcium carbonate is solid
Body is separated by preposition grit water separator, is discharged by sediment ejection opening, greatly reduces denitrogenation biochemical system water inlet calcium ion concentration, instead
Nitrifying sludge calcification is avoided, and the risk of biochemical system collapse substantially reduces；And water inlet and recirculation water can be sufficiently mixed, into
Water pH can be adjusted；And the removal of calcium ion does not need additionally to add medicament, the carbonate in water outlet can obtain abundant benefit
With saving raw material reduces cost of sewage disposal, energy conservation and environmental protection.
Detailed description of the invention
Fig. 1 is principle schematic diagram of the invention.
Water inlet --- 1 preposition calcium carbonate reactor --- 2 pushing flow mixers --- 3 preposition grit water separator --- 4
Sediment ejection opening --- 5 denitrogenation water inlet pipes --- 6 efficient denitrification reactors --- 7 air inlet water distributor ---, 8 sludge degassing group
Part --- 9 separator for mud and water --- 10 water outlets --- 11 sewage backflow pipe --- 12
Specific embodiment
Embodiment: a kind of photovoltaic stainless steel waste water total nitrogen handles recycling set device, including preposition calcium carbonate reactor 2, preceding
Sand-water separating device 4 and denitrification reactor 7 are set, the preposition calcium carbonate reactor 2 is equipped with the water inlet entered for treatment sewage
Mouth 1, preposition calcium carbonate reactor 2 are connected to by outlet pipe with preposition sand-water separating device 4, and preposition sand-water separating device 4, which is equipped with, to be supplied
The sediment ejection opening 5 of silt discharge, preposition sand-water separating device 4 are connected to by drainage pipeline with the denitrogenation water inlet pipe of denitrification reactor 7, are taken off
The water outlet of Analysis 7 is respectively equipped with sewage backflow pipe 12 and water outlet 11, sewage backflow pipe 12 and preposition calcium carbonate reaction
Device 2 is connected to.After sewage is by entering preposition calcium carbonate reactor 2 by water inlet 1, mixed with the phegma of sewage backflow pipe 12, it is dirty
Calcium ion is reacted with bicarbonate ion, dissolution carbonic acid and the carbanion in phegma in water generates calcium carbonate solid, carbon
Sour calcium solid is separated by preposition grit water separator, is discharged by sediment ejection opening 5, and sewage advances in denitrification reactor 7, through de-
The reaction zone of Analysis 7 carries out denitrification denitrogenation reaction, and water a part part after denitrogenation is flowed back through sewage backflow pipe 12, separately
One part is discharged from water outlet 11, which will be dirty by preposition calcium carbonate reactor 2 before sewage enters denitrification reactor 7
Calcium ion carries out separating treatment in water, so that substantially reducing into calcium ion concentration in the sewage in preposition calcium carbonate reactor 2.
Pushing flow mixer 3 is additionally provided in the preposition calcium carbonate reactor 2.Pushing flow mixer 3 is by preposition calcium carbonate reaction
Sewage in device 2 is adequately mixed with the water that sewage backflow pipe 12 flows back, and then makes calcium ion and bicarbonate ion, molten
Solution carbonic acid and carbanion sufficiently react, and avoid the unreacted discharge of sewage, greatly reduce into dirty in denitrification reactor 7
The calcium ion content of water.
The water outlet of the water inlet 1 and sewage backflow pipe 12 is located at preposition 2 upper end side of calcium carbonate reactor, preposition sand
Separator 4 is connected to preposition 2 other side of calcium carbonate reactor.Ensure the water that the water outlet of sewage and sewage backflow pipe 12 is discharged into
It is sufficiently mixed in preposition calcium carbonate reactor 2, sufficiently reacts.
Preposition 4 lower end of sand-water separating device is formed with the funnel-shaped structure that internal diameter gradually tapers up, and sediment ejection opening 5 is and the funnel-form
The horizontal pipe of structure lower end connection.The structure can guarantee that silt sufficiently precipitates discharge, and sewage is avoided to be discharged from sediment ejection opening 5,
Meanwhile silting in preposition sand-water separating device 4 being avoided to block sediment ejection opening 5.
Preposition 4 upper end of sand-water separating device forms preposition water outlet 11, which passes through drainage pipeline and denitrogenation
Water inlet pipe connection.
Intake pump is additionally provided between the drainage pipeline and denitrogenation water inlet pipe of preposition sand-water separating device 4.It is improved by intake pump
The flow velocity of intake pressure and water flow reacts sewage in denitrification reactor 7 sufficiently towards reaction zone flowing.
7 lower layer of denitrification reactor is equipped with air inlet water distributor, and air inlet water distributor is connected to denitrogenation water inlet pipe, air inlet water distribution
Uniform parts have several water distribution mouths on device, and 7 middle layer of denitrification reactor forms denitrification reaction area, the water outlet position of denitrification reactor 7
Layer thereon.Water distribution uniformity is realized by air inlet water distributor, it is ensured that is sufficiently reacted in denitrification reactor 7.
The denitrification reactor 7, which is located above denitrification reaction area, is additionally provided with sludge degassing component 9, sludge degassing 9 energy of component
The enough sludge that denitrification reaction area floats deaerates.The sludge that reaction zone floats sinks after sludge degassing component 9 deaerates, further
It realizes desliming process, reduces sediment content in the water of discharge.
The upper end of the denitrification reactor 7 is additionally provided with effluent weir, and effluent weir outside bottom surface is equipped with separator for mud and water.By going out
Mill weir water outlet is conducive to silt in water outlet and further separates, improves water outlet degree of purity.
Claims (9)
1. a kind of photovoltaic stainless steel waste water total nitrogen handles recycling set device, it is characterised in that: including preposition calcium carbonate reactor
(2), preposition sand-water separating device (4) and denitrification reactor (7), the preposition calcium carbonate reactor be equipped with for treatment sewage into
The water inlet (1) entered, preposition calcium carbonate reactor is connected to by outlet pipe with preposition sand-water separating device, on preposition sand-water separating device
Equipped with the sediment ejection opening (5) being discharged for silt, preposition sand-water separating device passes through the denitrogenation water inlet pipe of drainage pipeline and denitrification reactor
Connection, the water outlet of denitrification reactor are respectively equipped with sewage backflow pipe (12) and water outlet (11) mouth, sewage backflow pipe and pre-carbon
Sour calcium reactor connection.
2. photovoltaic stainless steel waste water total nitrogen according to claim 1 handles recycling set device, it is characterised in that: described preposition
Pushing flow mixer (3) are additionally provided in calcium carbonate reaction device.
3. photovoltaic stainless steel waste water total nitrogen according to claim 1 or 2 handles recycling set device, it is characterised in that: described
The water outlet of water inlet and sewage backflow pipe is located at preposition calcium carbonate reactor upper end side, preposition sand-water separating device and pre-carbon
The connection of the sour calcium reactor other side.
4. photovoltaic stainless steel waste water total nitrogen according to claim 1 handles recycling set device, it is characterised in that: preposition sand water
Separator lower end is formed with the funnel-shaped structure that internal diameter gradually tapers up, and sediment ejection opening is the level being connected to the funnel-shaped structure lower end
Pipeline.
5. photovoltaic stainless steel waste water total nitrogen according to claim 1 handles recycling set device, it is characterised in that: preposition sand water
Separator upper end forms preposition water outlet, which is connected to by drainage pipeline with denitrogenation water inlet pipe.
6. photovoltaic stainless steel waste water total nitrogen according to claim 5 handles recycling set device, it is characterised in that: preposition sand water
Intake pump is additionally provided between the drainage pipeline and denitrogenation water inlet pipe of separator.
7. photovoltaic stainless steel waste water total nitrogen according to claim 1 handles recycling set device, it is characterised in that: the denitrogenation
Reactor lower layer is equipped with air inlet water distributor, and air inlet water distributor is connected to denitrogenation water inlet pipe, if there is uniform parts on air inlet water distributor
Dry water distribution mouth, denitrification reactor middle layer form denitrification reaction area, the water outlet of denitrification reactor layer disposed thereon.
8. photovoltaic stainless steel waste water total nitrogen according to claim 7 handles recycling set device, it is characterised in that: the denitrogenation
Reactor, which is located above denitrification reaction area, is additionally provided with sludge degassing component (9), and sludge deaerates component can will be in denitrification reaction area
Floating sludge degassing.
9. photovoltaic stainless steel waste water total nitrogen according to claim 7 handles recycling set device, it is characterised in that: the denitrogenation
The upper end of reactor is additionally provided with effluent weir, and effluent weir outside bottom surface is equipped with separator for mud and water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910752675.4A CN110451726A (en) | 2019-08-15 | 2019-08-15 | Photovoltaic stainless steel waste water total nitrogen handles recycling set device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910752675.4A CN110451726A (en) | 2019-08-15 | 2019-08-15 | Photovoltaic stainless steel waste water total nitrogen handles recycling set device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110451726A true CN110451726A (en) | 2019-11-15 |
Family
ID=68486623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910752675.4A Pending CN110451726A (en) | 2019-08-15 | 2019-08-15 | Photovoltaic stainless steel waste water total nitrogen handles recycling set device |
Country Status (1)
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| CN (1) | CN110451726A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113501622A (en) * | 2021-07-26 | 2021-10-15 | 上海东振环保工程技术有限公司 | Biological denitrification reactor and denitrification method thereof |
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-
2019
- 2019-08-15 CN CN201910752675.4A patent/CN110451726A/en active Pending
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| KR200378576Y1 (en) * | 2004-12-24 | 2005-03-17 | 주식회사 앤써브 | Biofilm denitrification filter system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113501622A (en) * | 2021-07-26 | 2021-10-15 | 上海东振环保工程技术有限公司 | Biological denitrification reactor and denitrification method thereof |
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