CN109384309A - The method of waste water synchronous denitrification dephosphorizing - Google Patents
The method of waste water synchronous denitrification dephosphorizing Download PDFInfo
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- CN109384309A CN109384309A CN201811330248.9A CN201811330248A CN109384309A CN 109384309 A CN109384309 A CN 109384309A CN 201811330248 A CN201811330248 A CN 201811330248A CN 109384309 A CN109384309 A CN 109384309A
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- waste water
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- 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
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Abstract
The present invention provides a kind of methods of waste water synchronous denitrification dephosphorizing, including carry out wastewater treatment using sulphur autotrophic denitrification filter tank, and the filler in the sulphur autotrophic denitrification filter tank contains dolomite and elemental sulfur.In the method for the dolomite and elemental sulfur synchronous denitrification dephosphorizing, elemental sulfur is conducive to autotrophic denitrification microorganism for the NO in water3 ‑- N is converted into nitrogen, utilizes the PO in Ca, Mg removal waste water in dolomite4 3‑, to realize synchronous denitrification dephosphorizing.Waste water synchronous denitrification and dephosphorization method of the invention is not necessarily to additional carbon, simple process, and the functional microorganism of dolomite and elemental sulfur synchronous denitrification dephosphorizing is mainly autotrophic denitrification bacterium, microorganism growth is slower, filter tank clogging is substantially not present, therefore, through in treated the sulphur autotrophic denitrification filter tank containing dolomite and elemental sulfur synchronous denitrification dephosphorizing water outlet without superfluous organic matter there are a possibility that, sludge yield can be reduced.
Description
Technical field
The present invention relates to technical field of sewage more particularly to a kind of methods of waste water synchronous denitrification dephosphorizing.
Background technique
Due to expanding economy, improvement of living standard, the quickening of urbanization process, the nutriments such as a large amount of N, P with
River enters lake, reservoir and ocean, causes the water eutrophication problem got worse.There is an urgent need to economically viable at present
Denitrification dephosphorization technique controls the input of exogenous N, P nutriment, reduces the concentration of N, P in the water bodys such as lake, reservoir, controls water
The process of body eutrophication.
Synchronous denitrification dephosphorizing is the development trend of modern wastewater processing technology.Studying more with application is that biology is synchronous de-
Nitrogen dephosphorization technique, such as A2/ O technique, oxidation ditch process, SBR technique, Phostrip technique, improvement UCT technique etc..Due to it
Numerous complicated bioprocess is coupled in a system, be completed at the same time organic matter removal, denitrogenation dephosphorizing process, thus can not
Each interprocedual can be generated contradictory relation with avoiding, if polyP bacteria and nitrifier are to the competition of DO, sludge age, polyP bacteria and denitrification
Competition etc. of the bacterium to carbon source.Therefore the effect is unsatisfactory for its synchronous denitrification dephosphorizing.In view of traditional biological denitrificaion and biological phosphate-eliminating
Between contradiction and conflict, when the nitrogen phosphorus requirement in be discharged to sewage treatment is stringent, external sewage treatment plant is mainly using life
Object denitrogenation adds chemical dephosphorization technique, and it is up to standard that sacrifice cost exchanges effluent quality for.Also there are many biological denitrificaion and chemical dephosphorizations in China
In conjunction with research, such as biofilter denitrogenation, activated sludge process, in conjunction with dosing coagulant dephosphorization, Nitrogen/Phosphorus Removal is fine.
It can be seen that biological denitrificaion is the important channel for obtaining good Nitrogen/Phosphorus Removal in conjunction with chemical dephosphorization.
In view of some problems existing for traditional biological heterotrophic denitrification denitrogenation, sulphur autotrophic denitrification denitrogenation over closer year
Increasingly it is taken seriously.Sulphur autotrophic denitrification denitrogenation has two big advantages: 1) not needing additional carbon, it is possible to reduce cost reduces
The risk of technique；2) sludge quantity generated is few, reduces the processing of sludge.
Since 1978, studied extensively by the sulphur autotrophic denitrification of sulphur source of sulphur.Domestic and international most study
It is sulphur/lime stone autotrophic denitrification (SLAD) system.Lime stone is mainly used to produced by neutralizing during sulphur autotrophic denitrification
Acid, inorganic carbon source can also be provided for bacterium.SLAD system most starts gradually to be generalized to earth's surface later for handling underground water
Water, the secondary effluent of the sewage plant, percolate from garbage filling field etc., adaptable, denitrification effect is very good.However SLAD system
The shortcomings that there are its own mainly consumes a large amount of lime stone, and the water hardness and sulfate concentration are high out.Although in denitrification process
In have more Ca2+It generates, but since the pH of water is 7 or so, thus there is no good phosphor-removing effects by SLAD.Also there is use
Pyrite is as electron donor, however pyrite is at high cost.
Therefore, it is necessary to provide a kind of better method to solve the above problems.
Summary of the invention
The object of the present invention is to provide a kind of method of waste water synchronous denitrification dephosphorizing, this method can realize that simultaneous denitrification removes
Phosphorus, and it is not necessarily to additional organic carbon source, with operating cost is low, sludge yield is few, high-efficient and simple process advantage.
To achieve the above object, the present invention provides a kind of methods of waste water synchronous denitrification dephosphorizing, including use sulphur autotrophy
Denitrification filter pool carries out wastewater treatment, and the filler in the sulphur autotrophic denitrification filter tank contains dolomite and elemental sulfur.
Compared with prior art, in the method for the waste water synchronous denitrification dephosphorizing of the application, sulphur autotrophic denitrification is to restore
State sulphur is electron donor, NO3 -- N is the autotrophic denitrification process that electron acceptor carries out, the NO that can be effectively removed in water3 --
N.Wherein, elemental sulfur is conducive to autotrophic denitrification microorganism for the NO in water3 -- N is converted into nitrogen, using in dolomite Ca,
Mg removes the PO in waste water4 3-, to realize synchronous denitrification dephosphorizing, specific reaction equation such as formula 1 and formula 2.Wherein, elemental sulfur
Belong to the by-product during petroleum generates, cost is relatively low, therefore, significantly reduces the cost of wastewater treatment.In sulphur autotrophy
More demanding to basicity in denitrification process, easy consumption basicity, high basicity consumption rate will increase the cost of operation.The reason is that
Faintly acid is generally presented in water outlet pH, when pH is too low, will result in the accumulation of nitrite nitrogen, influences effluent quality.When pH value is lower than 5.5
When, denitrification rate just will receive serious inhibition.The application can be avoided the problem using dolomite as the source of alkali,
Without exogenously added alkali, so cost can be reduced.And dolomite can also provide carbon source for reaction, be not necessarily to additional carbon.The application's fills out
Material is only dolomite and elemental sulfur, not only simple process and at low cost.Especially dolomite and elemental sulfur synchronous denitrification dephosphorizing
Functional microorganism is mainly autotrophic denitrification bacterium, and microorganism growth is slower, filter tank clogging is substantially not present, therefore, through containing
Without existing for superfluous organic matter in water outlet that treated in the sulphur autotrophic denitrification filter tank of dolomite and elemental sulfur synchronous denitrification dephosphorizing
Possibility can reduce sludge yield.
Formula 1:
Formula 2:
Preferably, dolomite and elemental sulfur of the invention are mixed by 1~5: 1 volume ratio in sulphur autotrophic denitrification filter tank
It closes, for example, dolomite and the elemental sulfur volume ratio in sulphur autotrophic denitrification filter tank are 1: 1,2: 1,3: 1,4: 1,5: 1.More preferably
Dolomite and elemental sulfur mixed in sulphur autotrophic denitrification filter tank by 1: 1 volume ratio, denitrogenation dephosphorizing is preferable.
Preferably, the partial size of dolomite of the present invention be 1mm~10mm, such as dolomite partial size be 1mm~4mm, 4mm~
6mm, 6mm~10mm, the preferably partial size of dolomite are 4mm~6mm；The partial size of elemental sulfur is 1mm~10mm, such as elemental sulfur
Partial size be 1mm~3mm, 3mm~5mm, 5mm~10mm, wherein the partial size of preferably elemental sulfur be 3mm~5mm.
Preferably, reaction temperature is 15 DEG C~30 DEG C in sulphur autotrophic denitrification filter tank.For example, in sulphur autotrophic denitrification filter tank
Reaction temperature is 15 DEG C, 20 DEG C, 25 DEG C and 30 DEG C.In general, sulphur autotrophic denitrification technique is in cryogenic conditions, denitrifying bacterium
Activity is suppressed, and system nitrate can be made to increase, but the application using elemental sulfur/white clouds stone system carry out sulphur oneself
When supporting denitrification, denitrification effect is not very weak, it may be possible to which low temperature is active to denitrifying bacterium under elemental sulfur/white clouds stone system
Inhibit to influence smaller.
Preferably, the waste water to be processed hydraulic detention time in sulphur autotrophic denitrification filter tank is 60~150min, for example,
Hydraulic detention time is 60min, 80min, 100min, 120min, 150min in sulphur autotrophic denitrification filter tank, and preferably waterpower is stopped
Staying the time is 120min.
Preferably, the preparation in sulphur autotrophic denitrification filter tank, comprising:
(1) reactor is provided, dolomite and elemental sulfur are mixed according to a certain volume and are filled into the reactor；
(2) anoxic section sludge is added in Xiang Suoshu reactor；
(3) continuum micromeehanics mode is used, domestication sewage is added, it, can be with the white clouds by the domestication of the domestication sewage
Stone and the packed bed of elemental sulfur combination are inoculated with, and autotrophic denitrification microbial bacteria is obtained；
(4) sewage to be processed is added in Xiang Suoshu reactor, measures NO continuous 3 times3 -- N removal rate >=70%, then debug
Success, obtains autotrophic denitrification filter tank, wherein the domestication sewage and the sewage to be processed are same sewage.
Wherein, use the waste water of same sewage plant that could allow domestication waste water to the sludge acclimatization of anoxic section for seed sludge, with
Dolomite and elemental sulfur combination packed bed be inoculated with, the autotrophic denitrification microbial bacteria obtained from just have to waste water into
The effect of row denitrogenation dephosphorizing.Taming sewage is seed sludge to anoxic section sludge acclimatization, is filled out with what dolomite and elemental sulfur combined
It fills bed to be inoculated with, the autotrophic denitrification microbial bacteria obtained from just has effects that carry out denitrogenation dephosphorizing to sewage.Specifically
It can be and add sewage plant biochemical process anoxic section sludge and carry out domestication inoculation, initial operating stage hydraulic detention time is 2h, is used
Domestication sewage is added in continuum micromeehanics mode.
Preferably, the sludge age of anoxic section sludge is 30~60 days, for example sludge age is 30 days, 40 days, 50 days, 60 days.
Specific embodiment
The technical scheme of the invention is further explained by means of specific implementation, but does not constitute and appoint to of the invention
What is limited.
Embodiment 1
Waste water is derived from Pingshan area, Shenzhen Jin Lianlu sewage treatment Pilot Base, using dolomite and elemental sulfur simultaneous denitrification
The method of dephosphorization handles it, and steps are as follows:
(1) cylindrical reactor is provided, wherein diameter 1100mm is highly 3500mm, dolomite and elemental sulfur are pressed
1: 1 volume ratio mixing is filled into reactor, and the partial size of elemental sulfur is 3mm~5mm, and the partial size of dolomite is 4mm~6mm；
(2) Yu Shangyang sewage treatment plant takes a certain amount of anoxic section sludge, wherein sludge concentration (MLSS) be 4000~
6000mg/L.It will be in anoxic section sludge placing response device；
(3) continuum micromeehanics mode is used, domestication sewage is added, anoxic section sludge and domestication waste water pass through domestication in two weeks,
The packed bed combined with dolomite and elemental sulfur is inoculated with, and sulphur autotrophic denitrification microbial bacteria is turned out；
(4) waste water to be processed is added into reactor, when denitrification effect holding stabilization, then debugs success.Periodic detection
NO3 -The concentration of-N is discharged NO3 -- N concentration tends towards stability and removal rate reaches 70%, then it is assumed that debugs successfully.
(5) it is passed through waste water to be processed to debugging successful sulphur autotrophic denitrification filter tank, makes waste water and sulphur autotrophic denitrification
Microbial bacteria comes into full contact with, and reaction temperature is 25 DEG C, waste water discharge that treated.
Continuous operation monitors eight days, and a water sample was taken every 12 hours, measures its water quality indicator, the experimental data are shown in the following table institute
Show.
Wherein, hydraulic detention time 120min, water inlet TN (total nitrogen content in water) mean concentration are 4.1mg/L, into
Water TP (total phosphorus content in water) mean concentration is 0.28mg/L, and the mean concentration for being discharged TN is 0.8mg/L, is discharged being averaged for TP
Concentration is lower than 0.1mg/L, is better than surface water IV class standard, and sulphur autotrophic denitrification filter tank is stable.
Embodiment 2
The embodiment 2 and the method for the synchronous denitrification dephosphorizing of embodiment 1 are essentially identical, the difference lies in that the embodiment 2
Hydraulic detention time is 80min, and hydraulic detention time is 120min in embodiment 1.
Its TN mean concentration of intaking is 4.1mg/L, and water inlet TP mean concentration is 0.28mg/L, and the mean concentration for being discharged TN is
1.1mg/L is discharged the mean concentration of TP lower than 0.2mg/L.
Embodiment 3
The embodiment 3 and the method for the synchronous denitrification dephosphorizing of embodiment 1 are essentially identical, the difference lies in that the embodiment 3
Hydraulic detention time is 150min, and hydraulic detention time is 120min in embodiment 1.
Its TN mean concentration of intaking is 4.1mg/L, and water inlet TP mean concentration is 0.28mg/L, and the mean concentration for being discharged TN is
0.78mg/L is discharged the mean concentration of TP lower than 0.1mg/L.
Embodiment 4
The embodiment 4 and the method for the synchronous denitrification dephosphorizing of embodiment 1 are essentially identical, the difference lies in that the embodiment 4
Reaction temperature is 15 DEG C, and reaction temperature is 25 DEG C in embodiment 1.
Its TN mean concentration of intaking is 4.1mg/L, and water inlet TP mean concentration is 0.28mg/L, and the mean concentration for being discharged TN is
1.2mg/L is discharged the mean concentration of TP lower than 0.2mg/L.
Embodiment 5
The embodiment 5 and the method for the synchronous denitrification dephosphorizing of embodiment 1 are essentially identical, the difference lies in that the embodiment 5 is white
Marble and elemental sulfur are filled into reactor by 3: 1 volume ratio mixing；By dolomite and elemental sulfur by 1: 1 in embodiment 1
Volume ratio mixing is filled into reactor.
Its TN mean concentration of intaking is 4.1mg/L, and water inlet TP mean concentration is 0.28mg/L, and the mean concentration for being discharged TN is
1.0mg/L is discharged the mean concentration of TP lower than 0.17mg/L.
Embodiment 6
The embodiment 6 and the method for the synchronous denitrification dephosphorizing of embodiment 1 are essentially identical, the difference lies in that in the embodiment 6
The partial size of dolomite is 6mm~10mm.
Its TN mean concentration of intaking is 4.1mg/L, and water inlet TP mean concentration is 0.28mg/L, and the mean concentration for being discharged TN is
0.93mg/L is discharged the mean concentration of TP lower than 0.1mg/L.
Embodiment 7
The embodiment 7 and the method for the synchronous denitrification dephosphorizing of embodiment 1 are essentially identical, the difference lies in that in the embodiment 6
The partial size of dolomite is 1mm~4mm.
Its TN mean concentration of intaking is 4.1mg/L, and water inlet TP mean concentration is 0.28mg/L, and the mean concentration for being discharged TN is
1.0mg/L is discharged the mean concentration of TP lower than 0.1mg/L.
Comparative example 1
Lime stone and elemental sulfur composite filling are synchronized denitrogenation dephosphorizing test, test parameters to waste water by the comparative example 1
And step is same as described above, it is as a result as follows:
Its TN mean concentration of intaking is 4.1mg/L, and water inlet TP mean concentration is 0.28mg/L, and the mean concentration for being discharged TN is
1.0mg/L is discharged the mean concentration of TP lower than 0.23mg/L.It follows that lime stone and elemental sulfur composite filling are to total nitrogen
Difference more of the invention is removed, poor to the removal effect of total phosphorus, difference is larger compared with the present invention.
From the test result of Examples 1 to 7 and comparative example 1 it is found that waste water to be measured is removed through the waste water simultaneous denitrification of the application
After the method for phosphorus is handled, it is discharged the concentration of TN, the concentration for being discharged TP can reach even better than surface water IV category
It is quasi-.The reason is that in the method for the waste water synchronous denitrification dephosphorizing of the application, sulphur autotrophic denitrification be using reduced sulfur as electron donor,
NO3 -- N is the autotrophic denitrification process that electron acceptor carries out, the NO that can be effectively removed in water3 --N.Wherein, elemental sulfur has
Conducive to autotrophic denitrification microorganism by the NO in water3 -- N is converted into nitrogen, using in Ca, Mg removal waste water in dolomite
PO4 3-, to realize synchronous denitrification dephosphorizing, specific reaction equation such as formula 1 and formula 2.Wherein, elemental sulfur belongs to petroleum and generated
By-product in journey, cost is relatively low, therefore, significantly reduces the cost of wastewater treatment.It is right during sulphur autotrophic denitrification
Basicity is more demanding, easy consumption basicity, and high basicity consumption rate will increase the cost of operation.The reason is that water outlet pH generally present it is weak
Acidity when pH is too low, will result in the accumulation of nitrite nitrogen, influence effluent quality.When pH value is lower than 5.5, denitrification rate is just
It will receive serious inhibition.The application can be avoided the problem using lime stone as the source of alkali, be not necessarily to exogenously added alkali, so
Cost can be reduced.And dolomite can also provide carbon source for reaction, be not necessarily to additional carbon.The filler of the application is only dolomite and list
Matter sulphur, not only simple process and at low cost.The especially functional microorganism of dolomite and elemental sulfur synchronous denitrification dephosphorizing is mainly
Autotrophic denitrification bacterium, microorganism growth is slower, and filter tank clogging is substantially not present, therefore, through same containing dolomite and elemental sulfur
Walk in treated in the sulphur autotrophic denitrification filter tank water outlet of denitrogenation dephosphorizing without superfluous organic matter there are a possibility that, sludge can be reduced
Yield.Sewage treatment is suitable for using the sulphur autotrophic denitrification filter tank containing dolomite and elemental sulfur synchronous denitrification dephosphorizing simultaneously low
Warm condition still keeps good denitrification effect under cryogenic.
In embodiment 1 and embodiment 2-3, compared with Example 1, only nitrogen removal rate slightly improves embodiment 3, but unknown
Aobvious, possible cause is hydraulic detention time raising, and system is influenced by matrix limitation；And when hydraulic detention time < 120min, out
The mean concentration of water TN and the mean concentration of water outlet TP are higher, may be limited by biomass or elemental sulfur/dolomite dissolves
Rate and mass transfer influence.
Embodiment 1 is compared with embodiment 4, and what embodiment 4 was taken is cryogenic conditions, and denitrifying bacterium activity is suppressed, meeting
Increase system nitrate, but the mean concentration of its water outlet TN under cryogenic still reaches 1.2mg/L, keeps good
Denitrification effect, it may be possible to active on the denitrifying bacterium inhibition of low temperature influences smaller under elemental sulfur/white clouds stone system.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than protects to the present invention
The limitation of range is protected, although the present invention is described in detail referring to preferred embodiment, the invention is not limited to above
Revealed embodiment, and various modifications, equivalent combinations according to the essence of the present invention should be covered.
Claims (8)
1. a kind of method of waste water synchronous denitrification dephosphorizing, which is characterized in that including using sulphur autotrophic denitrification filter tank to waste water into
Row is handled, and the filler in sulphur autotrophic denitrification filter tank contains dolomite and elemental sulfur.
2. the method for waste water synchronous denitrification dephosphorizing as described in claim 1, which is characterized in that the dolomite and the simple substance
Sulphur is mixed by 1~5: 1 volume ratio.
3. the method for waste water synchronous denitrification dephosphorizing as described in claim 1, which is characterized in that the partial size of the dolomite is
4mm~6mm.
4. the method for waste water synchronous denitrification dephosphorizing as described in claim 1, which is characterized in that the partial size of the elemental sulfur is
3mm~5mm.
5. the method for waste water synchronous denitrification dephosphorizing as described in claim 1, which is characterized in that sulphur autotrophic denitrification filter tank
Middle reaction temperature is 15 DEG C~30 DEG C.
6. the method for waste water synchronous denitrification dephosphorizing as described in claim 1, which is characterized in that sulphur autotrophic denitrification filter tank
Middle hydraulic detention time is 60~150min.
7. the method for waste water synchronous denitrification dephosphorizing as described in claim 1, which is characterized in that sulphur autotrophic denitrification filter tank
Preparation, comprising:
(1) reactor is provided, dolomite and elemental sulfur are mixed according to a certain volume and are filled into the reactor；
(2) anoxic section sludge is added in Xiang Suoshu reactor；
(3) use continuum micromeehanics mode, be added domestication sewage, by it is described domestication sewage domestication, can with the dolomite and
The packed bed of the elemental sulfur combination is inoculated with, and sulphur autotrophic denitrification microbial bacteria is obtained；
(4) sewage to be processed is added in Xiang Suoshu reactor, measures NO continuous 3 times3 -- N removal rate >=70%, then debugging at
Function obtains autotrophic denitrification filter tank, wherein the domestication sewage and the sewage to be processed are same sewage.
8. the method for waste water synchronous denitrification dephosphorizing as claimed in claim 7, which is characterized in that the sludge of the anoxic section sludge
Age is 30~60 days.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111320258A (en) * | 2020-03-13 | 2020-06-23 | 湖南清之源环保科技有限公司 | Nitrogen and phosphorus removal composite filler and preparation method thereof |
| CN112520847A (en) * | 2019-09-19 | 2021-03-19 | 天津大学 | Biological retention pond filler based on sulfur autotrophic denitrification |
| CN114620832A (en) * | 2022-04-15 | 2022-06-14 | 合肥工业大学 | Sulfur-based autotrophic microbial denitrification material and preparation and application methods thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101973629A (en) * | 2010-10-29 | 2011-02-16 | 南京大学 | Nitrogen and phosphorus removal method by using pyrite as biochemical filling |
| CN103232117A (en) * | 2013-04-15 | 2013-08-07 | 湖北大学 | Low carbon nitrogen ratio micro contaminated water nitrogen removal method |
| KR101401129B1 (en) * | 2010-03-30 | 2014-06-17 | 신닛떼쯔 수미킨 엔지니어링 가부시끼가이샤 | Material for decontaminating water containing nitrate nitrogen, and method for decontaminating water containing nitrate nitrogen |
| CN105110440A (en) * | 2015-09-11 | 2015-12-02 | 合肥工业大学 | Method for deeply purifying water containing phosphorus |
| CN107512771A (en) * | 2017-07-31 | 2017-12-26 | 南京大学 | A kind of siderite/sulphur biofilter and using it synchronously go water removal in the method for nitrogen and phosphorus |
| CN108439613A (en) * | 2018-04-23 | 2018-08-24 | 南京大学 | A kind of modularization sewage denitrification and dephosphorization treatment process based on sulphur autotrophic denitrification |
-
2018
- 2018-11-09 CN CN201811330248.9A patent/CN109384309A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101401129B1 (en) * | 2010-03-30 | 2014-06-17 | 신닛떼쯔 수미킨 엔지니어링 가부시끼가이샤 | Material for decontaminating water containing nitrate nitrogen, and method for decontaminating water containing nitrate nitrogen |
| CN101973629A (en) * | 2010-10-29 | 2011-02-16 | 南京大学 | Nitrogen and phosphorus removal method by using pyrite as biochemical filling |
| CN103232117A (en) * | 2013-04-15 | 2013-08-07 | 湖北大学 | Low carbon nitrogen ratio micro contaminated water nitrogen removal method |
| CN105110440A (en) * | 2015-09-11 | 2015-12-02 | 合肥工业大学 | Method for deeply purifying water containing phosphorus |
| CN107512771A (en) * | 2017-07-31 | 2017-12-26 | 南京大学 | A kind of siderite/sulphur biofilter and using it synchronously go water removal in the method for nitrogen and phosphorus |
| CN108439613A (en) * | 2018-04-23 | 2018-08-24 | 南京大学 | A kind of modularization sewage denitrification and dephosphorization treatment process based on sulphur autotrophic denitrification |
Non-Patent Citations (1)
| Title |
|---|
| 李芳芳等: "硫磺和黄铁矿为填料的生物滤池自养反硝化强化处理二沉尾水", 《环境科学研究》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112520847A (en) * | 2019-09-19 | 2021-03-19 | 天津大学 | Biological retention pond filler based on sulfur autotrophic denitrification |
| CN111320258A (en) * | 2020-03-13 | 2020-06-23 | 湖南清之源环保科技有限公司 | Nitrogen and phosphorus removal composite filler and preparation method thereof |
| CN114620832A (en) * | 2022-04-15 | 2022-06-14 | 合肥工业大学 | Sulfur-based autotrophic microbial denitrification material and preparation and application methods thereof |
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