CN108178296A - A kind of method for strengthening anaerobic waste water biological phosphate-eliminating - Google Patents
A kind of method for strengthening anaerobic waste water biological phosphate-eliminating Download PDFInfo
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- CN108178296A CN108178296A CN201810100187.0A CN201810100187A CN108178296A CN 108178296 A CN108178296 A CN 108178296A CN 201810100187 A CN201810100187 A CN 201810100187A CN 108178296 A CN108178296 A CN 108178296A
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- waste water
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- 239000002351 wastewater Substances 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000005728 strengthening Methods 0.000 title claims abstract description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 40
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 39
- 239000011574 phosphorus Substances 0.000 claims abstract description 39
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 24
- 230000029087 digestion Effects 0.000 claims abstract description 18
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 claims abstract description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 20
- 239000010802 sludge Substances 0.000 claims description 18
- 239000010865 sewage Substances 0.000 claims description 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 8
- 229910004879 Na2S2O5 Inorganic materials 0.000 claims description 6
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 2
- 238000010899 nucleation Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 230000004060 metabolic process Effects 0.000 abstract 1
- 241000196324 Embryophyta Species 0.000 description 8
- 238000001914 filtration Methods 0.000 description 6
- 239000003643 water by type Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000003814 drug Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 238000012851 eutrophication Methods 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005842 biochemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- DJFBJKSMACBYBD-UHFFFAOYSA-N phosphane;hydrate Chemical compound O.P DJFBJKSMACBYBD-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- 229920000037 Polyproline Polymers 0.000 description 1
- 238000011953 bioanalysis Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 239000003653 coastal water Substances 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- IBIRZFNPWYRWOG-UHFFFAOYSA-N phosphane;phosphoric acid Chemical compound P.OP(O)(O)=O IBIRZFNPWYRWOG-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000001890 transfection Methods 0.000 description 1
- 238000002525 ultrasonication 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
-
- 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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved 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
- C02F1/70—Treatment of water, waste water, or sewage by reduction
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
Abstract
The present invention discloses a kind of method for strengthening anaerobic waste water biological phosphate-eliminating, and exogenous agent Na is added into phosphorus-containing wastewater2S2O5And/or Na2SO3It is uniformly mixed, pH value of waste water is adjusted to 6.0 8.0, anaerobic digestion is reacted at 15 45 DEG C, total phosphorus in waste water releases hydrogen phosphide under anaerobe metabolism and is removed from water body, so that the total phosphorus load that biochemical treatment of wastewater enters aerobic stage is substantially reduced, the method for the present invention is simple and practicable, and phosphor-removing effect is apparent.
Description
Technical field
The present invention relates to a kind of methods of anaerobic waste water biological phosphate-eliminating, and in particular to addition exogenous agent strengthens anaerobic waste water
The method of biological phosphate-eliminating, belongs to technical field of biological treatment of wastewater.
Background technology
At present, eutrophication causes serious negative effect to natural water, such as lake " wawter bloom " and coastal waters " red tide "
It happens occasionally, and grows in intensity, not only endanger all conglomeraties such as agricultural, fishery, tourist industry, also water hygiene and food are pacified
Constitute grave danger entirely.The restricted substance for causing body eutrophication is mainly phosphorus, only when in water phosphorus it is dense
When, what is provided constraints is only nitrogen.It can be seen that the phosphorus effectively removed in waste water is even more important more than the meaning for going to denitrogenate.Drop
The method of low body eutrophication control phosphorus pollution mainly includes bioanalysis, chemical precipitation method, absorption method, ion-exchange etc..
Traditional sewage treatment plant is using polyP bacteria anaerobic phosphorus release, the biological removal of phosphorus in wastewater technical principle of aerobic phosphorus absorption, only to phosphorus
The conversion of object phase is carried out, by phosphorus by being transferred in solid phase sludge in liquid phase, phosphorus also needs subsequently to be further processed in sludge.Chemistry
Method dephosphorization process chemical agent consumption simultaneously generates a large amount of chemical sludges, causes secondary environmental pollution and processing cost is relatively high；
The technical operation such as dialysis, ion-exchange are of high cost, complicated for operation, it is also difficult to meet the actual motion demand of waste water dephosphorization.
Biological Phosphorus Removal Processes are relatively economic methods, under anaerobic condition by the phosphorus in waste water be converted into hydrogen phosphide from
And achieve the purpose that dephosphorization, it gradually attracts attention.Devai et al. is in 1988 for the first time in municipal sewage plant
Detect hydrogen phosphide, phosphorus balance calculation shows that：The loss of sewage treatment plant's Phosphorus From Wastewater reaches 30-40%.Existing application CN
104828939 A disclose " a kind of method of phosphor-containing organic wastewater multistage dephosphorization production hydrogen phosphide ", and the method includes configurations to detest
Oxygen reactor, microbiological fuel cell and microorganism electrolysis cell, three are sequentially connected, and are electrolysed by anaerobic fermentation, microorganism
Pond the two reaction members realize multistage dephosphorization production hydrogen phosphide, while dephosphorization efficiency is improved, the phosphatization hydrogen purity of generation compared with
Height, but technical process is rather complicated.Existing application 106365309 A of CN disclose " a kind of phosphorus-containing wastewater anaerobic organism dephosphorization and
The method of phosphorus recycling ", mainly by controlling the organic loading of sewerage and phosphorus load enriched phosphorus hydrochlorate reducing bacteria, utilizes phosphorus
Phosphate transfection in waste water is turned to hydrogen phosphide and achievees the purpose that dephosphorization by hydrochlorate reducing bacteria；It yet there are no related to the application
Phosphorus removing method disclose.
Invention content
The present invention provides a kind of method for strengthening anaerobic waste water biological phosphate-eliminating, anaerobism generation of this method based on microorganism
It thanks, Na is added into phosphorus-containing wastewater2S2O5Etc. reproducibilities medicament, the phosphate in waste water is promoted to be easier to obtain electronics so as to turn
Hydrogen phosphide is turned to, and the purpose of waste water dephosphorization is escaped and realized from water body.
The technology contents of the present invention are as follows：
（1）By the anaerobic pond sludge seeding of municipal sewage plant to mixing in the reactor of pending phosphorus-containing wastewater is equipped with, instead
Answer mixed liquor sludge concentration in device（MLSS）Not less than 3000mg/L；
（2）In step（1）Exogenous agent is added in mixture, then adjusts mixture ph as 6.0-8.0, and be passed through nitrogen to make
Dissolved oxygen content is not higher than 0.2mg/L in reactor；
（3）Step（2）Mixture anaerobic digestion at 15-45 DEG C is reacted in reactor, and phosphorus-containing wastewater is acted in anaerobe
It is lower to discharge hydrogen phosphide and decline the total phosphorus content in waste water, that is, realize waste water dephosphorization.
The exogenous agent is Na2S2O5And/or Na2SO3, dosage 0.3-2.0g/L.
The anaerobic digestion time is 48-144h.
The present invention has following advantage：
1）By directly adding external source reproducibility medicament in anaerobic reactor, the purpose of anaerobic waste water biological phosphate-eliminating is realized；Phase
Than this traditional biological dephosphorization process of anaerobic phosphorus release-aerobic phosphorus absorption-mud discharging, present invention process process is simple, phosphor-removing effect
Significantly；
2）The present invention directly reduces the total phosphorus content of anaerobic biochemical reaction system, hence it is evident that the phosphorus for reducing follow-up aerobic biochemical pool is born
Lotus helps to realize biochemical system final outflow water phosphorus qualified discharge.
Specific embodiment
The present invention is described in further detail below by embodiment, but the scope of the present invention is not limited in described
Hold.
Embodiment 1
Sanitary sewage 1.5L after filtering is packed into the biochemical reactor that dischargeable capacity is 3L, is inoculated with municipal sewage plant
Anaerobic pond sludge, in reactor mixed liquor sludge concentration be 3120mg/L, total phosphorus content 435mg/L；Two groups of parallel examinations are set
It tests, one of which adds exogenous agent Na2S2O5, dosage 0.7g/L disposably adds Na into reactor2S2O5Afterwards,
It stirs and evenly mixs, and adjusts mixture ph to 7.0, being passed through nitrogen makes dissolved oxygen content in reactor be 0.01mg/L, then seals
Close reactor；Another set is blank control, does not add exogenous agent, adjusting mixture ph to 7.0, after being passed through nitrogen 3min
Dissolved oxygen content is made in reactor to be 0.01mg/L, closed reactor；Two groups of reactors are placed under the conditions of 15 DEG C of waters bath with thermostatic control
Anaerobic digestion 144h；Oscillating reactions device, takes and digests mixed liquor in reactor in right amount, its total phosphorus content is measured after ultrasonication；
The total tp removal rate of blank control group is 0.8%, and the total tp removal rate of test group waste water for adding exogenous agent is 24.1%；Anaerobic biological
After reaction system addition exogenous agent, waste water dephosphorization promotion with obvious effects.
Embodiment 2
Sanitary sewage 1.5L after filtering is packed into the biochemical reactor that dischargeable capacity is 3L, is inoculated with municipal sewage plant
Anaerobic pond sludge, in reactor mixed liquor sludge concentration be 14580mg/L, total phosphorus content 2247mg/L；Set two groups it is parallel
Experiment, one of which add exogenous agent Na2S2O5, dosage 1.3g/L adds rear mixing points for 2 times, adjusts pH of mixed
Value is to 8.0, and being passed through nitrogen makes in reactor dissolved oxygen content be 0.05mg/L, the anaerobic digestion under the conditions of 25 DEG C of waters bath with thermostatic control
120h, remaining operating process are same as Example 1；Blank control group does not add the environment item such as exogenous agent, digestion time, temperature
Part is identical with test group；The total tp removal rate of blank control group is 4.2%, adds the total tp removal rate of test group waste water of exogenous agent
It is 17.9%.
Embodiment 3
Sanitary sewage 1.5L after filtering is packed into the biochemical reactor that dischargeable capacity is 3L, is inoculated with municipal sewage plant
Anaerobic pond sludge, in reactor mixed liquor sludge concentration be 4330mg/L, total phosphorus content 648mg/L；Two groups of parallel examinations are set
It tests, one of which adds exogenous agent Na2SO3, dosage 1.5g/L, after disposably adding, adjust mixed liquor pH value to
8.0, and being passed through nitrogen makes in reactor dissolved oxygen content be 0.1mg/L, the anaerobic digestion 100h under the conditions of 45 DEG C of waters bath with thermostatic control,
Remaining operating process is same as Example 1；Blank control group does not add exogenous agent, the environmental conditions such as digestion time, temperature with
Test group is identical.The total tp removal rate of blank control group is 0.3%, and the total tp removal rate of test group waste water for adding exogenous agent is
8.6%。
Embodiment 4
Sanitary sewage 1.5L after filtering is packed into the biochemical reactor that dischargeable capacity is 3L, is inoculated with municipal sewage plant
Anaerobic pond sludge, in reactor mixed liquor sludge concentration be 4330mg/L, total phosphorus content 648mg/L；Two groups of parallel examinations are set
It tests, one of which adds exogenous agent Na simultaneously2S2O5With Na2SO3, the mass ratio of the two is 2:1, total amount is added as 2.0g/L；
After disposably adding, mixed liquor pH value is adjusted to 7.0, and being passed through nitrogen makes dissolved oxygen content in reactor be 0.07mg/L；In
Anaerobic digestion 80h under the conditions of 35 DEG C of waters bath with thermostatic control, remaining operating process are same as Example 1；Blank control group does not add external source
Medicament, the environmental conditions such as digestion time, temperature are identical with test group.The total tp removal rate of blank control group is 3.6%, adds external source
The total tp removal rate of test group waste water of medicament is 25.6%.
Embodiment 5
Sanitary sewage 1.5L after filtering is packed into the biochemical reactor that dischargeable capacity is 3L, is inoculated with municipal sewage plant
Anaerobic pond sludge, in reactor mixed liquor sludge concentration be 4320mg/L, total phosphorus content 640mg/L.Two groups of parallel examinations are set
It tests, one of which adds exogenous agent Na2S2O5, total amount is added as 1.5g, adds the Na of 0.75g for the first time2S2O5Afterwards, it adjusts
Mixed liquor pH value is to 6.0, the anaerobic digestion 48h under the conditions of 20 DEG C of waters bath with thermostatic control；And then the secondary Na for adding 0.75g2S2O5, after
Continuous anaerobic digestion is passed through nitrogen for 24 hours, before anaerobic digestion makes dissolved oxygen content in reactor be 0.15mg/L；Remaining operating process with
Embodiment 1 is identical.Blank control group does not add exogenous agent, and the environmental conditions such as digestion time, temperature are identical with test group；Blank
The total tp removal rate of control group is 3.3%, and the total tp removal rate of test group waste water for adding exogenous agent is 11.2%.
Embodiment 6
Sanitary sewage 1.5L after filtering is packed into the biochemical reactor that dischargeable capacity is 3L, is inoculated with municipal sewage plant
Anaerobic pond sludge, in reactor mixed liquor sludge concentration be 4210mg/L, total phosphorus content 560mg/L；Two groups of parallel examinations are set
It tests, one of which adds exogenous agent Na2S2O5, dosage 0.3g/L, after disposably adding, adjust mixed liquor pH value to
7.0, and being passed through nitrogen makes dissolved oxygen content in reactor be 0.2mg/L；The anaerobic digestion 72h under the conditions of 30 DEG C of waters bath with thermostatic control,
Remaining operating process is same as Example 1；Blank control group does not add exogenous agent, the environmental conditions such as digestion time, temperature with
Test group is identical.The total tp removal rate of blank control group is 0.4 %, and the total tp removal rate of test group waste water for adding exogenous agent is
6.2%。
After experiment proves anaerobic biochemical reaction system addition exogenous agent, waste water dephosphorization promotion with obvious effects.
Claims (3)
- A kind of 1. method for strengthening anaerobic waste water biological phosphate-eliminating, which is characterized in that concrete operations are as follows：（1）By the anaerobic pond sludge seeding of municipal sewage plant to mixing in the reactor of pending phosphorus-containing wastewater is equipped with, instead Mixed liquor sludge concentration in device is answered to be not less than 3000mg/L；（2）In step（1）Exogenous agent is added in mixture, then adjusts mixture ph as 6.0-8.0, and be passed through nitrogen to make Dissolved oxygen content is not higher than 0.2mg/L in reactor；（3）Step（2）Mixture anaerobic digestion at 15-45 DEG C is reacted in reactor, and phosphorus-containing wastewater is acted in anaerobe It is lower to discharge hydrogen phosphide and decline the total phosphorus content in waste water, that is, realize waste water dephosphorization.
- 2. the method according to claim 1 for strengthening anaerobic waste water biological phosphate-eliminating, it is characterised in that：Exogenous agent is Na2S2O5And/or Na2SO3, dosage 0.3-2.0g/L.
- 3. the method according to claim 1 for strengthening anaerobic waste water biological phosphate-eliminating, it is characterised in that：Anaerobic digestion time is 48-144h。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810100187.0A CN108178296A (en) | 2018-02-01 | 2018-02-01 | A kind of method for strengthening anaerobic waste water biological phosphate-eliminating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810100187.0A CN108178296A (en) | 2018-02-01 | 2018-02-01 | A kind of method for strengthening anaerobic waste water biological phosphate-eliminating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918811A (en) * | 2018-07-27 | 2018-11-30 | 玖龙纸业（沈阳）有限公司 | A kind of test method that detection chemical industry auxiliary material influences anaerobic-aerobic |
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| CN106365313A (en) * | 2016-10-27 | 2017-02-01 | 沈阳建筑大学 | Device for biological phosphorus removal through biological phosphate reduction process |
| CN106673299A (en) * | 2016-12-06 | 2017-05-17 | 广州富生源环保工程有限公司 | Sewage step-by-step dephosphorization and purification process |
-
2018
- 2018-02-01 CN CN201810100187.0A patent/CN108178296A/en active Pending
Patent Citations (4)
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|---|---|---|---|---|
| CN102603064A (en) * | 2012-04-01 | 2012-07-25 | 南京大学 | Method for synchronously removing nitrogen and phosphorus in sewage containing nitrogen and phosphorus |
| CN102775020A (en) * | 2012-07-25 | 2012-11-14 | 华南理工大学 | Coupling type sewage purification and regeneration treating method capable of removing phosphorus efficiently |
| CN106365313A (en) * | 2016-10-27 | 2017-02-01 | 沈阳建筑大学 | Device for biological phosphorus removal through biological phosphate reduction process |
| CN106673299A (en) * | 2016-12-06 | 2017-05-17 | 广州富生源环保工程有限公司 | Sewage step-by-step dephosphorization and purification process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108918811A (en) * | 2018-07-27 | 2018-11-30 | 玖龙纸业（沈阳）有限公司 | A kind of test method that detection chemical industry auxiliary material influences anaerobic-aerobic |
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Application publication date: 20180619 |