CN105293695A - Hybrid reactor - Google Patents
Hybrid reactor Download PDFInfo
- Publication number
- CN105293695A CN105293695A CN201510885015.5A CN201510885015A CN105293695A CN 105293695 A CN105293695 A CN 105293695A CN 201510885015 A CN201510885015 A CN 201510885015A CN 105293695 A CN105293695 A CN 105293695A
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- CN
- China
- Prior art keywords
- filter
- partition net
- shell
- water
- mixing reactor
- 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
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 31
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052742 iron Inorganic materials 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 14
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 11
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 11
- 239000011593 sulfur Substances 0.000 claims abstract description 11
- 239000002245 particle Substances 0.000 claims abstract description 8
- 239000008187 granular material Substances 0.000 claims description 9
- 238000009826 distribution Methods 0.000 claims description 8
- 238000013022 venting Methods 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 10
- 238000006479 redox reaction Methods 0.000 abstract description 3
- 238000005192 partition Methods 0.000 abstract 12
- 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 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 150000002823 nitrates Chemical class 0.000 abstract 1
- 239000000945 filler Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 229910002651 NO3 Inorganic materials 0.000 description 5
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 230000001651 autotrophic effect Effects 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000006392 deoxygenation reaction Methods 0.000 description 2
- 239000002198 insoluble material Substances 0.000 description 2
- -1 iron ion Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229920000388 Polyphosphate Polymers 0.000 description 1
- 229920000037 Polyproline Polymers 0.000 description 1
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 230000001546 nitrifying effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 229920013639 polyalphaolefin Polymers 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Abstract
The invention discloses a hybrid reactor which is characterized by comprising a closed shell, a bottom partition net, a middle partition net and an upper partition net, wherein the bottom, middle and upper partition nets are arranged in the shell in an up-down spaced mode, a space are respectively kept between the bottom partition net and the corresponding bottom surface of the shell or between the upper partition net and the corresponding top surface of the shell so as to form cavities, the space between the middle partition net and the upper partition net is filled with iron filings, the space between the middle partition net and the bottom partition net is filled with sulfur particles, the cavity at the upper part of the upper partition net is correspondingly provided with a water outlet, the cavity at the lower part of the bottom partition net is correspondingly provided with a water inlet pipe, a water feed pump is arranged on the water inlet pipe by tandem connection, and the top surface of the shell is provided with a gas vent for discharging nitrogen released in the process of denitrification. The shell of the hybrid reactor disclosed by the invention is a cylinder, so that reaction can be possibly complete; due to the iron filings and the sulfur particles, nitrate nitrogen remaining in reaction can be subjected to denitrification reaction under anaerobic conditions, and zero-valent iron can produce redox reaction with nitrates in water.
Description
Technical field
The present invention relates to technical field of sewage, particularly relate to a kind of mixing reactor.
Background technology
At present, domestic sewage disposal plant effluent alleviates mainly with city river moisturizing the water shortage problem that river and lake wetland etc. faces.But the water outlet of sewage work can not meet the requirement recovering water ecological environment, and principal pollutant nitrogen phosphorus emission still exceedes the supporting capacity of environmental capacity, is the eutrophication pollution problem of anti-water-stop body, must strengthens existing denitrification dephosphorization technique.
Biological denitrification process forms primarily of nitrification and denitrification.Nitrifying process is nitric nitrogen by mineralized nitrogen under the effect of autotrophic bacteria; Denitrification process is under the effect of heterotrophic bacterium, utilize the COD of former water that nitric nitrogen is converted into nitrogen, thus by the nitrogen removing in water.
Biological Phosphorus Removal Process supports release phosphorus by detesting, and absorbs phosphorus afterwards, then arranged outward by mud by supporting well the stage.Utilize the phosphoric acid salt of PAOs (polyP bacteria) sorption enhanced, then discharge from system in form of a sludge, realize Biological Phosphorus Removal Process.
Biological treatment process generally adopts two-stage AO technique, its previous stage carries out anoxic and aerobic reaction, advanced denitrification carries out nitrated again, because containing certain dissolved oxygen in traditional process reflows, anoxic condition is undesirable, so make denitrification process undesirable, denitrogenation is difficult to reach 90%, and the concentration of nitrate is higher, can not be well controlled.
Summary of the invention
The object of the invention is the technological deficiency for existing in prior art, and a kind of mixing reactor is provided.
The technical scheme adopted for realizing object of the present invention is:
A kind of mixing reactor, it is characterized in that, comprise closed shell, be arranged on the end filter in described housing at interval in the upper and lower, middle filter and upper filter, described end filter and upper filter keep spacing to form cavity with the bottom surface of corresponding housing or end face respectively, iron filings are filled with between described median septum and upper spacer, sulfur granule is filled with between median septum and lower clapboard, wherein, the cavity place on upper filter top is provided with water outlet accordingly, the cavity place of filter bottom, the end is provided with water inlet pipe accordingly, described water inlet pipe is serially connected with intake pump, the end face of described housing is provided with venting hole to get rid of the nitrogen of denitrification process release.
The particle diameter of described iron filings is 1mm-3mm, and the particle diameter of sulfur granules is 4mm-6mm.
The spacing of upper filter and middle filter and the gap ratio of middle filter and end filter are at 5-7.
Be fixedly installed conical water distribution baffle plate on the top of the cavity on upper filter top, described water distribution baffle plate be provided with multiple water distributing pore, the end face of described housing is provided with wash-out hole, also comprise the valve gap described wash-out hole can closed.
Described housing is cylindrical.
Compared with prior art, the invention has the beneficial effects as follows:
The housing of mixing reactor of the present invention is that right cylinder can make reaction as far as possible completely, its filler composition is bushel iron bits and sulfur granule, the remaining nitric nitrogen of reaction under anaerobic can be completed denitrification reaction by this filler, NO3-with the nitrate generation redox reaction in water, can be reduced to NO by Zero-valent Iron simultaneously
2-, NH
4+, thus reduce the concentration of nitrate.Meanwhile, the iron ion that redox produces can generate insoluble material with phosphate radical, decreases the Pollutant levels of water outlet, improves processing efficiency.The existence of iron has certain effect for deoxygenation, enhances anaerobic environment, enhances autotrophic denitrification effect.Higher compared to traditional technology clearance, operate also easier, manageable, filler cost is also lower, is very applicable to manufacture and usage.
Accompanying drawing explanation
Figure 1 shows that the structural representation of mixing reactor of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, mixing reactor of the present invention comprises closed cylindrical housing 1, be arranged on the end filter 2 in described housing at interval in the upper and lower, middle filter 3 and upper filter 4, described end filter and upper filter keep spacing to form cavity with the bottom surface of corresponding housing or end face respectively, iron filings are filled with between described median septum and upper spacer, sulfur granule is filled with between median septum and lower clapboard, wherein, the cavity place on upper filter top is provided with water outlet 5 accordingly, the cavity place of filter bottom, the end is provided with water inlet pipe 6 accordingly, described water inlet pipe is serially connected with intake pump 7, the end face of described housing is provided with venting hole.Generally, the particle diameter of the iron filings of filler is 1mm-3mm, and as 2mm, the particle diameter of sulfur granule is 4mm-6mm, as 5mm.The spacing of upper filter and middle filter and the gap ratio of middle filter and end filter are at 5-7, and namely sulfur granules and the packing volume of iron filings are than being about 1:6, and the porosity of packing layer is about 40%, and packed height determines different height by waste water quality.The venting hole of case top can get rid of the nitrogen of denitrification process release.
The housing of mixing reactor of the present invention is that right cylinder can make reaction as far as possible completely, and its filler composition is bushel iron bits and sulfur granule, and the remaining nitric nitrogen of reaction under anaerobic can be completed denitrification reaction by this filler: 55S+50NO
3-+ 38H
2o+20CO
2+ 4NH
4+=4C
5h
7o
2n+25N
2+ 55SO
2 4-+ 64H
+
Simultaneously Zero-valent Iron can with the nitrate generation redox reaction in water, by NO
3-be reduced to NO
2 -, NH
4+, thus reduce the concentration of nitrate.Meanwhile, the iron ion that redox produces can generate insoluble material with phosphate radical, decreases the Pollutant levels of water outlet, improves processing efficiency.The existence of iron has certain effect for deoxygenation, enhances anaerobic environment, enhances autotrophic denitrification effect.Higher compared to traditional technology clearance, operate also easier, manageable, filler cost is also lower, is very applicable to manufacture and usage.
Further, be fixedly installed conical water distribution baffle plate 8 on the top of the cavity on upper filter top, described water distribution baffle plate be provided with multiple water distributing pore, the end face of described housing is provided with wash-out hole 9, also comprise the valve gap described wash-out hole can closed.Can add water from top when cleaning, after utilizing water distribution baffle plate water distribution uniformity, just can complete automatic cleaning.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. a mixing reactor, it is characterized in that, comprise closed shell, be arranged on the end filter in described housing at interval in the upper and lower, middle filter and upper filter, described end filter and upper filter keep spacing to form cavity with the bottom surface of corresponding housing or end face respectively, iron filings are filled with between described median septum and upper spacer, sulfur granule is filled with between median septum and lower clapboard, wherein, the cavity place on upper filter top is provided with water outlet accordingly, the cavity place of filter bottom, the end is provided with water inlet pipe accordingly, described water inlet pipe is serially connected with intake pump, the end face of described housing is provided with venting hole to get rid of the nitrogen of denitrification process release.
2. mixing reactor as claimed in claim 1, it is characterized in that, the particle diameter of described iron filings is 1mm-3mm, and the particle diameter of sulfur granules is 4mm-6mm.
3. mixing reactor as claimed in claim 1 or 2, it is characterized in that, the spacing of upper filter and middle filter and the gap ratio of middle filter and end filter are at 5-7.
4. mixing reactor as claimed in claim 1, it is characterized in that, conical water distribution baffle plate is fixedly installed on the top of the cavity on upper filter top, described water distribution baffle plate is provided with multiple water distributing pore, the end face of described housing is provided with wash-out hole, also comprises the valve gap described wash-out hole can closed.
5. mixing reactor as claimed in claim 1, it is characterized in that, described housing is cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510885015.5A CN105293695A (en) | 2015-12-04 | 2015-12-04 | Hybrid reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510885015.5A CN105293695A (en) | 2015-12-04 | 2015-12-04 | Hybrid reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105293695A true CN105293695A (en) | 2016-02-03 |
Family
ID=55191638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510885015.5A Pending CN105293695A (en) | 2015-12-04 | 2015-12-04 | Hybrid reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105293695A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002159993A (en) * | 2000-11-27 | 2002-06-04 | Nitchitsu Co Ltd | Nitric acid removal treatment equipment |
| CN101054226A (en) * | 2007-04-30 | 2007-10-17 | 北京市环境保护科学研究院 | nitrosation and nitration method for iron and carbon, reactor using the method and sewage denitrogenation method |
| US20070262019A1 (en) * | 2005-12-23 | 2007-11-15 | Sukalyan Sengupta | Process for autotrophic denitrification using elemental sulfur and mollusk shells |
| CN101973629A (en) * | 2010-10-29 | 2011-02-16 | 南京大学 | Nitrogen and phosphorus removal method by using pyrite as biochemical filling |
| CN102642981A (en) * | 2012-04-17 | 2012-08-22 | 清华大学 | Denitrification dephosphorization device |
| CN103626293A (en) * | 2013-12-17 | 2014-03-12 | 南京大学 | Natural pyrrhotite biological filter and method for synchronously removing nitrate nitrogen and phosphorus out of water by using natural pyrrhotite biological filter |
| CN103723823A (en) * | 2013-12-19 | 2014-04-16 | 浙江大学 | Self-circulation ferric salt desulfurization anaerobic reactor |
| CN104140154A (en) * | 2013-05-09 | 2014-11-12 | 中国石油化工股份有限公司 | Pretreatment method of cellulosic ethanol fermentation waste-liquid and device thereof |
| CN104176824A (en) * | 2014-09-05 | 2014-12-03 | 北京思坦环保科技有限公司 | Ammonium nitrate wastewater biochemical treatment device and operation method thereof |
-
2015
- 2015-12-04 CN CN201510885015.5A patent/CN105293695A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002159993A (en) * | 2000-11-27 | 2002-06-04 | Nitchitsu Co Ltd | Nitric acid removal treatment equipment |
| US20070262019A1 (en) * | 2005-12-23 | 2007-11-15 | Sukalyan Sengupta | Process for autotrophic denitrification using elemental sulfur and mollusk shells |
| CN101054226A (en) * | 2007-04-30 | 2007-10-17 | 北京市环境保护科学研究院 | nitrosation and nitration method for iron and carbon, reactor using the method and sewage denitrogenation method |
| CN101973629A (en) * | 2010-10-29 | 2011-02-16 | 南京大学 | Nitrogen and phosphorus removal method by using pyrite as biochemical filling |
| CN102642981A (en) * | 2012-04-17 | 2012-08-22 | 清华大学 | Denitrification dephosphorization device |
| CN104140154A (en) * | 2013-05-09 | 2014-11-12 | 中国石油化工股份有限公司 | Pretreatment method of cellulosic ethanol fermentation waste-liquid and device thereof |
| CN103626293A (en) * | 2013-12-17 | 2014-03-12 | 南京大学 | Natural pyrrhotite biological filter and method for synchronously removing nitrate nitrogen and phosphorus out of water by using natural pyrrhotite biological filter |
| CN103723823A (en) * | 2013-12-19 | 2014-04-16 | 浙江大学 | Self-circulation ferric salt desulfurization anaerobic reactor |
| CN104176824A (en) * | 2014-09-05 | 2014-12-03 | 北京思坦环保科技有限公司 | Ammonium nitrate wastewater biochemical treatment device and operation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李孟等: "《给水处理原理》", 31 December 2013, 武汉理工大学出版社 * |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160203 |
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