CN102115298A - Device and method for treating low C/N ratio nitrified wastewater - Google Patents
Device and method for treating low C/N ratio nitrified wastewater Download PDFInfo
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- CN102115298A CN102115298A CN 201110028364 CN201110028364A CN102115298A CN 102115298 A CN102115298 A CN 102115298A CN 201110028364 CN201110028364 CN 201110028364 CN 201110028364 A CN201110028364 A CN 201110028364A CN 102115298 A CN102115298 A CN 102115298A
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000002351 wastewater Substances 0.000 title abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000010802 sludge Substances 0.000 claims abstract description 32
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 24
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000001301 oxygen Substances 0.000 claims abstract description 17
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 17
- 238000000926 separation method Methods 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 206010021143 Hypoxia Diseases 0.000 claims description 76
- 208000018875 hypoxemia Diseases 0.000 claims description 76
- 239000010865 sewage Substances 0.000 claims description 48
- 238000005273 aeration Methods 0.000 claims description 33
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 17
- 230000009189 diving Effects 0.000 claims description 12
- 239000002699 waste material Substances 0.000 claims description 8
- 238000007034 nitrosation reaction Methods 0.000 claims description 5
- 230000001737 promoting effect Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 abstract 3
- 238000005276 aerator Methods 0.000 abstract 2
- 230000001105 regulatory effect Effects 0.000 abstract 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- IOVCWXUNBOPUCH-UHFFFAOYSA-N Nitrous acid Chemical compound ON=O IOVCWXUNBOPUCH-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000001651 autotrophic effect Effects 0.000 description 2
- 238000011081 inoculation Methods 0.000 description 2
- 238000006396 nitration reaction Methods 0.000 description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- QGZKDVFQNNGYKY-OUBTZVSYSA-N Ammonia-15N Chemical compound [15NH3] QGZKDVFQNNGYKY-OUBTZVSYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- CVTZKFWZDBJAHE-UHFFFAOYSA-N [N].N Chemical class [N].N CVTZKFWZDBJAHE-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 244000062766 autotrophic organism Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003851 biochemical process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 244000144977 poultry Species 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Activated Sludge Processes (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a device and a method for treating low C/N ratio nitrified wastewater. The device comprises a regulating reservoir, a wastewater lifting pump, a first anaerobic tank, an aerobic tank, a second anaerobic tank, perforated pipe aerators, a lifting aerator pipe, a secondary sedimentation tank, a sludge pump, a submersible mixer, a steam pipe and a blower. Wastewater enters into the regulating reservoir and then enters into the aerobic tank through the lifting pump, the wastewater in the aerobic tank is aerated and heated, and meanwhile, the returned sludge in the secondary sedimentation tank synchronously enters into the aerobic tank; wastewater enters into the two anaerobic tanks through a water outlet at the bottom of the aerobic tank, the wastewater in the two anaerobic tanks is intermittently aerated, and the submersible mixer is arranged for stirring; and wastewater enters into the secondary sedimentation tank for solid-liquid separation through water outlets of the two anaerobic tanks, wherein partial sludge returns to the aerobic tank through the sludge pump, and the rest sludge is treated. The device has the advantages of low DO, (dissolved oxygen), zero external carbon source, high nitrification efficiency, simple structure, small occupied area, less investment, low running cost and continuous/intermittent operation.
Description
Technical field
The present invention relates to environmental protection technical field, relate in particular to nitrosifying waste disposal plant of a kind of low ratio of carbon to ammonium and method thereof.
Background technology
For the sewage of the high ammonia nitrogen of low ratio of carbon to ammonium, traditional biological denitrification process generally is to comprise ammonia nitrogen is oxidized to NO
2 -, NO
3 -Nitrated and with NO
2 -, NO
3 -Be reduced to N
2Two stages of denitrification; But nitrated stage dissolved oxygen is generally 3 ~ 6mg/l, and the aeration power consumption is high, and easy consumption basicity; The denitrification stage then needs organic carbon source, otherwise denitrogenation is incomplete; To the high ammonia nitrogen class of low ratio of carbon to ammonium waste water such as medicine, chemical industry, chemical fertilizer, process hides, percolate, livestock and poultry cultivations, then need add carbon sources such as methyl alcohol, starch and carry out denitrification.Add the carbon source problem for solution, effectively overcome traditional nitrated-denitrification process need support denitrifying problem as electron donor with organism.CANON technology (Completely Autotrophic N-removal Over Nitrite, complete denitrification of autotrophic organism by the nitrous acid approach) be in a reactor, to carry out short distance nitration and Anammox (Anaerobic Ammonia Oxidation, ANAMMOX) process simultaneously.Under little oxygen condition, Nitrosomas changes into nitrous acid with the ammonia nitrogen partial oxygen, consumes oxidation and creates the required anaerobic environment of ANAMMOX process; The ANAMMOX reaction takes place and generates nitrogen in the remaining ammonia nitrogen of nitrous acid that produces and part.
The stoichiometric equation formula of CANON process is as follows:
NH
+ 4?+?1.5O
2 →NO
- 2?+?H
+?+?H
2O
NH
3?+?1.32NO
- 2?+?H
+→1.02N
2?+?0.26NO
- 3?+?2H
2O
General equation formula: NH
+ 4+ 0.85O
2→ 0.435N
2+ 0.13NO
- 3+ 0.14H
++ 1.3H
2O
This technology can be saved 100% carbon source, is particularly useful for handling the high-concentration ammonia nitrogenous wastewater of low C/N; Because this process using is restricted oxygen supply mode, DO concentration is lower in the reactor, can save 60% oxygen-supplying amount.
Adopting low dissolved axygen DO method is to realize one of nitrosifying effective means, water inlet and returned sluge together enter Aerobic Pond, the whole process autotrophic nitrosification has solved the problem of carbon source, therefore will adopt the method for low DO and the method that muddy water is mixed into Aerobic Pond to combine, help nitrosifying quick startup, and the nitrosification stage that can maintain a long-term stability, have condition and be easy to control, be easy to start the advantage that water outlet is effective.
Summary of the invention
The objective of the invention is to overcome shortcomings such as existing low ratio of carbon to ammonium high ammonia-nitrogen wastewater nitrated start time of length, nitrification effect instability, nitrosifying waste disposal plant of a kind of low ratio of carbon to ammonium and method thereof are provided.
The nitrosifying waste disposal plant of low ratio of carbon to ammonium comprises equalizing tank, sewage pump, the first hypoxemia pond, Aerobic Pond, the second hypoxemia pond, perforated pipe aerating regulation, can promote aeration tube, second pond, sludge pump, diving mixer, vapour pipe and gas blower; Equalizing tank, sewage pump, Aerobic Pond connect in turn, the Aerobic Pond water-in is provided with vapour pipe, the Aerobic Pond bottom is provided with and can promotes aeration tube and water outlet, the Aerobic Pond both sides are provided with the first hypoxemia pond and the second hypoxemia pond, the first hypoxemia pond and bottom, the second hypoxemia pond are respectively equipped with perforated pipe aerating regulation, can promote aeration tube is connected with gas blower with perforated pipe aerating regulation, the first hypoxemia pond and the second hypoxemia pond are respectively equipped with diving mixer, the first hypoxemia pond and upper end, the second hypoxemia pond set out the mouth of a river respectively, and are connected in turn with second pond, sludge pump, Aerobic Pond bottom.
The nitrosifying sewage water treatment method of low ratio of carbon to ammonium is: sewage enters equalizing tank, enters Aerobic Pond by sewage pump, and the pressurized air that gas blower produces carries out aeration through promoting aeration tube to sewage, regulates the gas blower air quantity and controls dissolved oxygen at 1～2mg/L; Returned sluge in the second pond enters Aerobic Pond synchronously; Be provided with vapour pipe at the Aerobic Pond water-in, sewage is heated, control water temperature is carried out nitrosation reaction at 28～35 ℃ under pH7.6～8.5 conditions; Sewage enters the first hypoxemia pond and the second hypoxemia pond by Aerobic Pond bottom water outlet, be furnished with perforated pipe aerating regulation in two hypoxemia ponds and carry out intermittent aeration, and establish diving mixer and stir, so that the control dissolved oxygen is 0.8～1.0mg/L, the volume ratio in Aerobic Pond and hypoxemia pond is: 1:10～20; Sewage enters second pond through the first hypoxemia pond and the second hypoxemia pond water outlet and carries out solid-liquid separation, and wherein part mud is back to Aerobic Pond by sludge pump, and excess sludge goes to carry out sludge treatment.
Described from Aerobic Pond to the first hypoxemia pond and the sewage in the second hypoxemia pond adopt water inlet continuously.Adopt intermittent aeration in the described first hypoxemia pond and the second hypoxemia pond.Sewage in the described Aerobic Pond adds the heating of thermal recovery secondary steam.
The beneficial effect that the present invention compared with prior art has:
(1) it is about 60% to adopt the method for low DO can save oxygen-supplying amount, and energy-saving effect is remarkable.
(2) anti-nitration reaction need not to add organic carbon source;
(3) nitrosification efficient height, effluent quality is good;
(4) this technology have simple and compact for structure, floor space is little, reduced investment, running cost are low, flexible operation, can be continuously and advantage such as intermittent operation.
Description of drawings
Accompanying drawing is nitrosifying waste disposal plant structural representation of low ratio of carbon to ammonium and processing technological flow figure thereof;
Among the figure, equalizing tank 1, sewage pump 2, the first hypoxemia pond 3, Aerobic Pond 4, the second hypoxemia pond 5, perforated pipe aerating regulation 6, can promote aeration tube 7, second pond 8, sludge pump 9, diving mixer 10, vapour pipe 11 and gas blower 12.
Embodiment
As shown in the figure, the nitrosifying waste disposal plant of low ratio of carbon to ammonium comprises equalizing tank 1, sewage pump 2, the first hypoxemia pond 3, Aerobic Pond 4, the second hypoxemia pond 5, perforated pipe aerating regulation 6, can promote aeration tube 7, second pond 8, sludge pump 9, diving mixer 10, vapour pipe 11 and gas blower 12; Equalizing tank 1, sewage pump 2, Aerobic Pond 4 connects in turn, Aerobic Pond 4 water-ins are provided with vapour pipe 11, Aerobic Pond 4 bottoms are provided with and can promote aeration tube 7 and water outlet, Aerobic Pond 4 both sides are provided with the first hypoxemia pond 3 and the second hypoxemia pond 5, the first hypoxemia pond 3 and 5 bottoms, the second hypoxemia pond are respectively equipped with perforated pipe aerating regulation 6, can promote aeration tube 7 is connected with gas blower 12 with perforated pipe aerating regulation 6, the first hypoxemia pond 3 and the second hypoxemia pond 5 are respectively equipped with diving mixer 10, the first hypoxemia pond 3 and 5 upper ends, the second hypoxemia pond set out the mouth of a river respectively, and with second pond 8, sludge pump 9, Aerobic Pond 4 bottoms connect in turn.
The nitrosifying sewage water treatment method of low ratio of carbon to ammonium is: sewage enters equalizing tank 1 to carry out homogeneous and all measures, enter Aerobic Pond 4 by sewage pump 2, the pressurized air that gas blower 12 produces carries out aeration through promoting 7 pairs of sewage of aeration tube, regulates gas blower 12 air quantity and controls dissolved oxygen at 1～2mg/L; Returned sluge in the second pond 8 enters Aerobic Pond 4 synchronously; Be provided with vapour pipe 11 at Aerobic Pond 4 water-ins, sewage is heated, control water temperature is carried out nitrosation reaction at 28～35 ℃ under pH7.6～8.5 conditions; Sewage enters the first hypoxemia pond 3 and the second hypoxemia pond 5 by Aerobic Pond 4 bottom water outlets, be furnished with perforated pipe aerating regulation 6 in two hypoxemia ponds and carry out intermittent aeration, and establish diving mixer 10 and stir, so that the control dissolved oxygen is 0.8～1.0mg/L, the volume ratio in Aerobic Pond 4 and hypoxemia pond is: 1:10～20; Sewage enters second pond 8 through the first hypoxemia pond 3 and 5 water outlets of the second hypoxemia pond and carries out solid-liquid separation, and wherein part mud is back to Aerobic Pond 4 by sludge pump 9, and Aerobic Pond 4 sludge concentrations generally are controlled at 2000～4000mg/l.Excess sludge goes to carry out sludge treatment.
Described sewage from Aerobic Pond 4 to the first hypoxemia ponds 3 and the second hypoxemia pond 5 adopts water inlet continuously.Adopt intermittent aeration in the described first hypoxemia pond 3 and the second hypoxemia pond 5.Described Aerobic Pond 4 sewage add the heating of thermal recovery secondary steam.
The nitrosifying waste disposal plant working method of low ratio of carbon to ammonium is as follows:
(1) inoculation of microorganism and domestication: get the inoculation of similar waste water treatment plant's biochemical sludge or urban wastewater treatment firm biochemical sludge, the mud dosage is generally 1～2kg/m
3. biochemical process continuous aeration cultivation routinely during the beginning cultivation, add certain organotrophy component, dissolved oxygen is controlled at 2～4mg/L, when MLSS reaches the 3000mg/L left and right sides, reduce the aeration rate in hypoxemia district earlier, adopt the operation of intermittent aeration continuously stirring, aerobic zone is then controlled dissolved oxygen at 1～2mg/l, day by day reduce simultaneously and add the organotrophy component, stop to add organotrophy about ten days.
(2) add alkali (liming, sodium bicarbonate etc.) and regulate water inlet pH value 7.6～8.5, water inlet suitably adds some phosphoric acid salt based on ammonia nitrogen, and water inlet improves influent ammonium concentration at regular intervals continuously, and the nitrosification rate can reach more than 90% in about two months.
Undertaken by mode shown in the drawings when (3) device moves.Open intake pump 2, the waste water in the equalizing tank 1 is squeezed into Aerobic Pond 4, waste water enters hypoxemia pond 3,5 behind the aeration, then enters second pond 8 and carries out mud-water separation, and mud is back to Aerobic Pond through sludge pump 9.Supernatant liquor is discharged by water outlet.
(4) when water temperature is lower than 26 ℃, need to start heating system.
Embodiment 1:
The 2300t/d high concentration nitrogen-containing waste water of certain biotechnology company limited is introduced into equalizing tank, enter Aerobic Pond by sewage pump, the pressurized air that gas blower produces carries out aeration through promoting aeration tube to sewage, regulates the gas blower air quantity and controls dissolved oxygen at 2.0mg/L; Returned sluge in the second pond enters Aerobic Pond synchronously; Be provided with vapour pipe at the Aerobic Pond water-in, sewage is heated, control water temperature is carried out nitrosation reaction at 35 ℃ under the pH=8.5 condition; Sewage enters the first hypoxemia pond and the second hypoxemia pond by Aerobic Pond bottom water outlet, be furnished with perforated pipe aerating regulation in two hypoxemia ponds and carry out intermittent aeration, and establish diving mixer and stir, so that the control dissolved oxygen is 1.0mg/L, the volume ratio in Aerobic Pond and hypoxemia pond is: 1:20; Sewage enters second pond through the first hypoxemia pond and the second hypoxemia pond water outlet and carries out solid-liquid separation, and wherein part mud is back to Aerobic Pond by sludge pump, and excess sludge goes to carry out sludge treatment.
This method has successfully been handled such waste water, has realized qualified discharge.The factory effluent influent quality sees the following form:
Table 1 waste water composition table look-up unit: except the mg/L(pH)
| Project | Factory effluent | Effluent index |
| COD cr | 8000 | 100 |
| TN | 600 | NH 3-N：15 |
| pH | 4～5 | 6~9 |
| BOD 5 | 4000 | 20 |
| SS | 500 | 70 |
| TP | 200 | 0.50 |
Engineering is through the commissioning test more than 2 years, and treatment effect is stable, reaches the effluent quality of design, Analysis Results of Water Quality following (annual mean):
Table 2 treatment effect statistics table look-up
Embodiment 2:
Certain pharmacy high concentration nitrogen-containing waste water is introduced into equalizing tank, enters Aerobic Pond by sewage pump, and the pressurized air that gas blower produces carries out aeration through promoting aeration tube to sewage, regulates the gas blower air quantity and controls dissolved oxygen at 1.0mg/L; Returned sluge in the second pond enters Aerobic Pond synchronously; Be provided with vapour pipe at the Aerobic Pond water-in, sewage is heated, control water temperature is carried out nitrosation reaction at 28 ℃ under the pH=7.6 condition; Sewage enters the first hypoxemia pond and the second hypoxemia pond by Aerobic Pond bottom water outlet, be furnished with perforated pipe aerating regulation in two hypoxemia ponds and carry out intermittent aeration, and establish diving mixer and stir, so that the control dissolved oxygen is 0.8mg/L, the volume ratio in Aerobic Pond and hypoxemia pond is: 1:10; Sewage enters second pond through the first hypoxemia pond and the second hypoxemia pond water outlet and carries out solid-liquid separation, and wherein part mud is back to Aerobic Pond by sludge pump, and excess sludge goes to carry out sludge treatment.
Test-results shows, the clearance of COD is reached more than 60%, and ammonia-N removal rate is reached more than 85%.
Claims (5)
1. the nitrosifying waste disposal plant of low ratio of carbon to ammonium is characterized in that comprising equalizing tank (1), sewage pump (2), the first hypoxemia pond (3), Aerobic Pond (4), the second hypoxemia pond (5), perforated pipe aerating regulation (6), can promote aeration tube (7), second pond (8), sludge pump (9), diving mixer (10), vapour pipe (11) and gas blower (12); Equalizing tank (1), sewage pump (2), Aerobic Pond (4) connects in turn, Aerobic Pond (4) water-in is provided with vapour pipe (11), Aerobic Pond (4) bottom is provided with and can promotes aeration tube (7) and water outlet, Aerobic Pond (4) both sides are provided with the first hypoxemia pond (3) and the second hypoxemia pond (5), the first hypoxemia pond (3) and bottom, the second hypoxemia pond (5) are respectively equipped with perforated pipe aerating regulation (6), can promote aeration tube (7) is connected with gas blower (12) with perforated pipe aerating regulation (6), the first hypoxemia pond (3) and the second hypoxemia pond (5) are respectively equipped with diving mixer (10), the first hypoxemia pond (3) and the second hypoxemia pond (5) upper end sets out the mouth of a river respectively, and with second pond (8), sludge pump (9), Aerobic Pond (4) bottom connects in turn.
2. nitrosifying sewage water treatment method of low ratio of carbon to ammonium that use is installed according to claim 1, it is characterized in that sewage enters equalizing tank (1), enter Aerobic Pond (4) by sewage pump (2), the pressurized air that gas blower (12) produces carries out aeration through promoting aeration tube (7) to sewage, regulates gas blower (12) air quantity and controls dissolved oxygen at 1～2mg/L; Returned sluge in the second pond (8) enters Aerobic Pond (4) synchronously; Be provided with vapour pipe (11) at Aerobic Pond (4) water-in, sewage is heated, control water temperature is carried out nitrosation reaction at 28～35 ℃ under pH7.6～8.5 conditions; Sewage enters the first hypoxemia pond (3) and the second hypoxemia pond (5) by Aerobic Pond (4) bottom water outlet, be furnished with perforated pipe aerating regulation (6) in two hypoxemia ponds and carry out intermittent aeration, and establish diving mixer (10) and stir, so that the control dissolved oxygen is 0.8～1.0mg/L, the volume ratio in Aerobic Pond (4) and hypoxemia pond is: 1:10～20; Sewage enters second pond (8) through the first hypoxemia pond (3) and second hypoxemia pond (5) water outlet and carries out solid-liquid separation, wherein part mud is back to Aerobic Pond (4) by sludge pump (9), Aerobic Pond (4) sludge concentration generally is controlled at 2000～4000mg/l, and excess sludge goes to carry out sludge treatment.
3. the nitrosifying sewage water treatment method of a kind of low ratio of carbon to ammonium according to claim 2, it is characterized in that described from Aerobic Pond (4) to the first hypoxemia pond (3) and the sewage in the second hypoxemia pond (5) adopt water inlet continuously.
4. the nitrosifying sewage water treatment method of a kind of low ratio of carbon to ammonium according to claim 2 is characterized in that adopting in the described first hypoxemia pond (3) and the second hypoxemia pond (5) intermittent aeration.
5. the nitrosifying sewage water treatment method of a kind of low ratio of carbon to ammonium according to claim 2 is characterized in that: described Aerobic Pond (4) sewage adds the heating of thermal recovery secondary steam.
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|---|---|---|---|
| CN 201110028364 CN102115298B (en) | 2011-01-26 | 2011-01-26 | Device and method for treating low C/N ratio nitrified wastewater |
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|---|---|---|---|
| CN 201110028364 CN102115298B (en) | 2011-01-26 | 2011-01-26 | Device and method for treating low C/N ratio nitrified wastewater |
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| CN102115298B CN102115298B (en) | 2012-07-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515427A (en) * | 2011-12-07 | 2012-06-27 | 浙江省环境保护科学设计研究院 | Printing and dyeing waste water treatment system and process with low yield of sludge |
| CN104724828A (en) * | 2015-03-31 | 2015-06-24 | 成都信息工程学院 | Synchronous nitrification and denitrification coupled dephosphorization method for domestic sewage with low carbon nitrogen ratio |
| CN108217977A (en) * | 2018-02-06 | 2018-06-29 | 安庆师范大学 | A kind of sewage disposal system heated using recirculation water |
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| JPS5922697A (en) * | 1982-07-30 | 1984-02-04 | Kubota Ltd | Treatment of heat treated and separated liquid of sewer sludge |
| CN101289264A (en) * | 2008-06-13 | 2008-10-22 | 北京城市排水集团有限责任公司 | Combined denitrification apparatus and method by shortcut nitrification and anaerobic ammonium oxidation of sludge-digestion liquid |
| CN101353203A (en) * | 2008-09-19 | 2009-01-28 | 清华大学 | Short-cut denitrification synchronous denitrifying phosphorus removal process and apparatus |
| CN101456628A (en) * | 2009-01-15 | 2009-06-17 | 彭永臻 | Sludge slight expansion actuating apparatus and method of anoxia/aerobic biological denitrification process |
| JP2010264440A (en) * | 2009-04-17 | 2010-11-25 | Nihon Hels Industry Corp | Phosphorus and nitrogen removing method by anaerobic, low-dissolved oxygen, and high-dissolved oxygen activated sludge process |
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2011
- 2011-01-26 CN CN 201110028364 patent/CN102115298B/en not_active Expired - Fee Related
Patent Citations (5)
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|---|---|---|---|---|
| JPS5922697A (en) * | 1982-07-30 | 1984-02-04 | Kubota Ltd | Treatment of heat treated and separated liquid of sewer sludge |
| CN101289264A (en) * | 2008-06-13 | 2008-10-22 | 北京城市排水集团有限责任公司 | Combined denitrification apparatus and method by shortcut nitrification and anaerobic ammonium oxidation of sludge-digestion liquid |
| CN101353203A (en) * | 2008-09-19 | 2009-01-28 | 清华大学 | Short-cut denitrification synchronous denitrifying phosphorus removal process and apparatus |
| CN101456628A (en) * | 2009-01-15 | 2009-06-17 | 彭永臻 | Sludge slight expansion actuating apparatus and method of anoxia/aerobic biological denitrification process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515427A (en) * | 2011-12-07 | 2012-06-27 | 浙江省环境保护科学设计研究院 | Printing and dyeing waste water treatment system and process with low yield of sludge |
| CN104724828A (en) * | 2015-03-31 | 2015-06-24 | 成都信息工程学院 | Synchronous nitrification and denitrification coupled dephosphorization method for domestic sewage with low carbon nitrogen ratio |
| CN104724828B (en) * | 2015-03-31 | 2017-05-03 | 成都信息工程学院 | Synchronous nitrification and denitrification coupled dephosphorization method for domestic sewage with low carbon nitrogen ratio |
| CN108217977A (en) * | 2018-02-06 | 2018-06-29 | 安庆师范大学 | A kind of sewage disposal system heated using recirculation water |
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| Publication number | Publication date |
|---|---|
| CN102115298B (en) | 2012-07-18 |
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