CN106896190B - Whether there is or not the methods of nitrate nitrogen and assessment sludge phosphorus removal property in a kind of judgement returned sludge - Google Patents
Whether there is or not the methods of nitrate nitrogen and assessment sludge phosphorus removal property in a kind of judgement returned sludge Download PDFInfo
- Publication number
- CN106896190B CN106896190B CN201710100955.8A CN201710100955A CN106896190B CN 106896190 B CN106896190 B CN 106896190B CN 201710100955 A CN201710100955 A CN 201710100955A CN 106896190 B CN106896190 B CN 106896190B
- Authority
- CN
- China
- Prior art keywords
- sludge
- curve
- activated sludge
- phosphorus removal
- removal property
- 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.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Activated Sludge Processes (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses whether there is or not the methods of nitrate nitrogen and assessment sludge phosphorus removal property in a kind of judgement returned sludge, it include: that sewage plant sludge 1) is taken to be divided into two groups, portion washes mud, portion does not wash mud, it washes mud group to be carried out after repeatedly washing mud with buffer solution, aeration obtains corresponding two groups of breathings map OUR-t curve；2) compare two groups according to breathing map OUR-t curve, curve has rapid decrease trend in the aeration incipient stage, and reaches an OUR peak value, shows there is nitrate in the sludge reflux liquid；And OUR peak value it is higher when, show that sludge phosphorus removal property is poorer.The present invention breathes atlas analysis according to activated sludge, it is possible to determine that whether there is or not nitrate nitrogens and assessment sludge phosphorus removal property in returned sludge.
Description
Technical field
The invention belongs to sewage treatment fields, are related to a kind of analysis by breathing map to activated sludge, determine reflux
Whether there is or not the methods of nitrate nitrogen and assessment sludge phosphorus removal property in sludge.
Background technique
Water eutrophication results in water quality deterioration, has seriously affected people's production and life, and nitrogen, phosphorus are all that water body is raw
The important nutrient of object, after nitrogen, phosphorus in industrial wastewater and sanitary sewage largely enter water body, aquatile especially algae
The aquatile of mass propagation, mortality is decomposed by the microorganisms, a large amount of dissolved oxygen is consumed in decomposable process, it is molten in water
Solution oxygen concentration sharply declines, to affect the existence of the aquatiles such as fish.
Currently, biochemical method denitrogenation dephosphorizing and generally being used.Wherein, it is good mainly to pass through nitrifier for the removal of ammonia nitrogen
Oxygen nitrosation, nitrification generate nitrite anions, nitrate anion, and nitrite anions, nitrate anion are raw by denitrifying bacterium anoxic denitrification
Nitrogen is produced, is escaped from water.And the removal of phosphorus is then to discharge phosphorus, then the mistake under aerobic condition under anaerobic using dephosphorization bacterial
Degree inhales phosphorus, passes through spoil disposal dephosphorization.Denitrogenation dephosphorizing often realizes how preferably to control by the different of control condition in biochemistry pool
Condition finds the optimum condition of synchronous denitrification dephosphorizing, is of great significance to the raising of sludge denitrification dephosphorization efficiency.Due to returning
There are NO in stream sludge3 -- N will have an impact the effect of dephosphorization, therefore it provides whether there is in a kind of judgement activated sludge
NO3 -- the N and method for assessing sludge phosphorus removal property becomes current this field technical problem urgently to be resolved.
NO3 -- N refers to nitrate nitrogen, refers to nitrogen contained in nitrate.Organic matter in water and soil, which decomposes, to be generated
Ammonium salt becomes nitrate nitrogen after being oxidized.Based on nitrate nitrogen, along with nitrous (hydrochlorate) state nitrogen, ammoniacal nitrogen and organic nitrogen are total
Referred to as total nitrogen or complete (state) nitrogen.
Summary of the invention
Determine that whether there is or not nitrate nitrogens and assessment sludge in returned sludge using breathing map the purpose of the present invention is to provide a kind of
The method of phosphorus removal property, this method breathes map OUR-t curve using obtaining activated sludge under the conditions of aerobic, in aeration condition phase
With in the case where, OUR curve when comparison washes mud and do not wash two groups of activated sludge of mud determines and contains NO3 -Activated sludge group when-N
Terminating point (peak value) B that breathing map OUR-t curve obviously pulls down, and different phosphorus removal properties and OUR pull down peak point B value
Corresponding relationship, to accurately determine that whether there is or not nitrate nitrogens and assessment sludge phosphorus removal property in returned sludge.
The present invention passes through breathing map OUR-t curve, runs reality in conjunction with sewage treatment plant, analysis establishes one kind more
Simple and easy determines that whether there is or not the methods of nitrate nitrogen and assessment sludge phosphorus removal property in returned sludge.
The purpose of the present invention is what is realized by following technical proposals.
Whether there is or not nitrate nitrogens and assessment sludge phosphorus removal property in a kind of judgement returned sludge provided according to embodiments of the present invention
Method, method includes the following steps:
1) sludge sewage is taken to be divided into two groups, wherein one group with buffer solution to activated sludge carry out repeatedly it is clear
After washing, and sufficiently aeration makes activated sludge enter endogenous respiration state；
2) reaction unit is separately added into two groups of activated sludge of step 1), and carries out exposure nitrogen, make it into anaerobic condition,
It is stirred；
3) the aeration quantity parameter k of aerator is selectedLA controls the additive amount S of organic matter, obtains spirogram by calculating
Compose OUR-t curve；
4) in identical aeration condition, the breathing map OUR-t curve of two groups of activated sludge is compared, if spirogram
It is obvious to compose the rapid downward trend at starting point A or A ˊ of OUR-t curve, and reaches an OUR peak value B, then judges activity dirt
There is NO in mud3 -- N exists；
5) there is NO3 -In activated sludge existing for-N, activated sludge breathing map OUR-t curve drop-down speed obviously becomes
Greatly, and reach an OUR peak value, and when OUR peak value is higher, show that sludge phosphorus removal property is poorer.
Further, in the step 1), activated sludge enters the detailed process of endogenous respiration state are as follows:
Sludge sewage is taken, and is diluted with the ratio of volume ratio 1:3 addition tap water, by activated sludge sample
By stirring, 1/2 volume for precipitating, removing supernatant, being settled to activated sludge dilution, washed mud 3 times with PBS buffer solution, it
Active sludge intermixture is settled to the original volume of activated sludge dilution by addition tap water afterwards, is aerated 2~3h, activated sludge into
Enter endogenous respiration state.
Further, the PBS buffer solution is following components mixed liquor:
A:KH2PO4Concentration is 1.5~2.5mmolL-1；
B:Na2HPO4Concentration is 8~12mmolL-1；
C:NaCl concentration is 135~140mmolL-1；
D:KCl concentration is 2.5~3.0mmolL-1。
Further, the organic matter is single carbon source: sodium acetate or glucose, or is mixed carbon source: sanitary sewage, addition
Amount is 150~700mg/L.
Further, in the step 3), the control condition that nitrogen makes it into anaerobic condition is exposed to activated sludge are as follows:
DO is lower than 0.3 ± 0.2mg/L, and temperature is controlled at 20 ± 1 DEG C.
Further, the temperature control that step 3) obtains breathing map OUR-t curve procedures is 8~40 DEG C.
Further, map OUR-t curve is breathed according to the activated sludge under sewage treatment plant's difference operating condition, works as activated sludge
In contain NO3 -When-N, the activated sludge of summer group breathes the OUR peak point B that map OUR-t curve reachesSummerValue is significantly less than the winter
The OUR peak point B that season group activated sludge breathing map OUR-t curve reachesWinter；I.e. as the OUR that breathing map OUR-t curve reaches
When peak value is higher, show that sludge phosphorus removal property is poorer.
Whether the present invention adds NO using in sludge by analysis breathing map OUR-t curve3- N simulates returned sludge
In whether there is NO3- N judges whether there is NO in returned sludge to monitor3-N；Meanwhile map is breathed by comparison summer, winter
OUR-t curve, discovery sludge phosphorus removal property and the corresponding relationship for breathing map OUR-t curve, for determining returned sludge
In whether there is or not nitrate nitrogen and assessment sludge phosphorus removal property.
As whether there is or not the method for nitrate nitrogen and assessment sludge phosphorus removal property, sewage plant activated sludge in a kind of judgement returned sludge
Test result shows: of the invention determines that whether there is or not the sides of nitrate nitrogen and assessment sludge phosphorus removal property in returned sludge using breathing map
Method can accurately and efficiently determine that whether there is or not nitrate nitrogens and assessment sludge phosphorus removal property in returned sludge, bent according to breathing map OUR-t
Line judges whether there is NO in returned sludge with the presence or absence of drop-down point B3 -The presence of-N；And the size according to drop-down point B value, it can
To determine that whether there is or not nitrate nitrogens and assessment sludge phosphorus removal property in returned sludge.
The invention has the following advantages that
1) present invention finds spirogram addition NO3 -OUR curve incipient stage when-N obviously pulls down peak point B, can basis
Breathing map OUR-t curve judges whether there is NO in returned sludge with the presence or absence of drop-down point B3 -The presence of-N.
2) present invention finds the corresponding relationship of activated sludge difference phosphorus removal property and OUR drop-down peak point B value, thus accurately
Determine that whether there is or not nitrate nitrogens and assessment sludge phosphorus removal property in returned sludge.
3) the method for the present invention is easy to detect.Step is simple and easy, and test equipment automates, such as uses the green mark water in Xi'an
The WBM series sewage treatment wisdom that environmental science and technology Co., Ltd provides runs work station, can be in the case where unattended certainly
Dynamicization tests sludge to be tested.
Detailed description of the invention
Fig. 1 (a), (b) are respectively typical without containing NO3 -- N and contain NO3 -Map OUR-t curve is breathed when-N.
Fig. 2 (a), (b) are respectively summer without containing NO3 -- N and contain NO3 -2h breathes map OUR-t curve when-N.
Fig. 3 (a), (b) are respectively summer without containing NO3 -- N and contain NO3 -3h breathes map OUR-t curve when-N.
Fig. 4 (a), (b) are respectively winter without containing NO3 -- N and contain NO3 -2h breathes map OUR-t curve when-N.
Fig. 5 (a), (b) are respectively winter without containing NO3 -- N and contain NO3 -3h breathes map OUR-t curve when-N.
Specific embodiment
Below by accompanying drawings and embodiments, the present invention is described further.
The present invention determines that whether there is or not nitrate nitrogens and assessment sludge to remove in returned sludge by breathing atlas analysis to activated sludge
Phosphorus performance.
Present invention determine that whether there is or not nitrate nitrogens and assessment sludge phosphorus removal property in returned sludge, comprising the following steps:
1) sludge sewage is taken, is divided into two groups, wherein one group is not cleaned, another group is cleaned: using volume
Ratio addition tap water dilution than 1:3, activated sludge sample is passed through and stirs, precipitate, removing supernatant, being settled to activated sludge
1/2 volume of dilution is washed mud 3~5 times with PBS buffer solution, is added tap water later and is settled to active sludge intermixture
Then and sufficiently the original volume of activated sludge dilution is aerated 2~3h, activated sludge is made to enter endogenous respiration state；Pass through
Matrix, nitrate nitrogen, nitrite nitrogen, ammonia nitrogen, the COD etc. in former activated sludge sludge can be removed by washing mud.
Buffer solution is following components mixed liquor:
A:KH2PO4Concentration is 1.5~2.5mmolL-1；
B:Na2HPO4Concentration is 8~12mmolL-1；
C:NaCl concentration is 135~140mmolL-1；
D:KCl concentration is 2.5~3.0mmolL-1。
2) attaching dosage respectively to two groups of activated sludge of step 1) is 150~700mg/L organic matter (single carbon source: second
Sour sodium or glucose, or be mixed carbon source: sanitary sewage) guarantee that carbon source is sufficient；In order to which laboratory simulation contains NO3 -The activity of-N
Sludge, wherein not washing mud group further adds NO3 -- N is (for nitrate such as potassium nitrate, sodium nitrate；Additive amount is 18~22mg/L),
It is separately added into reaction unit, and carries out exposure nitrogen, anaerobic condition is made it into, is stirred.
The anaerobic condition control condition of activated sludge exposure nitrogen are as follows:
DO is lower than 0.3 ± 0.2mg/L, and temperature is controlled at 20 ± 1 DEG C.
3) the aeration quantity parameter k of WBM450 series aerator is selectedLA enters the dirt of endogenous respiration state in step 1)
In mud, according to selected parameter kLA, (single carbon source: sodium acetate, glucose or mixed carbon source: life is dirty for control organic matter
Water) additive amount S adjust aeration quantity parameter, obtain breathing map OUR-t curve and according to the practical dephosphorization characteristics of sludge；It obtains
The temperature control that map OUR-t curve procedures must be breathed is 8~40 DEG C；
4) in the identical situation of aeration condition, on the breathing map OUR-t curve that step 3) obtains, two groups of comparison is clear
The breathing map OUR-t curve of activated sludge is washed and does not clean, if breathing map OUR-t curve is fast at starting point A and A ˊ
Fast downward trend is obvious, and reaches a peak value B, then can judge whether have in activated sludge according to breathing map OUR-t curve
NO3 -- N exists；
Map OUR-t curve is breathed according to the activated sludge under sewage treatment plant's difference operating condition, when containing in activated sludge
NO3 -When-N, OUR peak point B that the breathing map OUR-t curve of summer group reachesSummerValue is significantly less than winter group BWinter, that is, work as breathing
When the OUR peak value that map OUR-t curve reaches is higher, show that sludge phosphorus removal property is poorer.
5) according to two groups of OUR curve, when there is NO3 -In activated sludge existing for-N, activated sludge breathes map
When OUR-t curve drop-down speed obviously becomes larger, and OUR peak value B is quickly reached, then shows that sludge phosphorus removal property is poor；And spirogram
Spectrum OUR-t curve be obviously pulled down to peak point B it is higher when, show that sludge phosphorus removal property is poorer.
Determine to take sewage plant anaerobism whether there is or not when nitrate nitrogen and assessment sludge phosphorus removal property in returned sludge using breathing map
Two parts of pond sludge, portion washes mud, and portion does not wash mud, after agitated, is aerated to obtain corresponding two groups of breathing maps OUR-t song
Whether line has NO in returned sludge if breathing map OUR-t curve has drop-down OUR peak value B3 -The presence of-N；And B value is got over
Big activated sludge dephosphorizing performance is poorer.
Effect of the present invention is further illustrated below by specific embodiment.
1) in the Xi'an some sludge sewage be sampled (sampling overview is shown in Table 1)；
2) the WBM450 series wisdom operation work station for selecting Xi'an Lv Biao water environment Science and Technology Ltd. to provide is as obtaining
The equipment for obtaining activated sludge breathing map OUR-t curve；
3) sludge sewage is taken to be divided into two groups, wherein one group is not cleaned, another group is cleaned: using volume ratio
The ratio addition tap water dilution of 1:3, by activated sludge sample, by stirring, precipitating, go, supernatant, to be settled to activated sludge dilute
1/2 volume for releasing liquid is washed mud 3 times with PBS buffer solution, is added tap water later for active sludge intermixture and is settled to active dirt
The original volume of mud dilution, is aerated 2h, and activated sludge has entered endogenous respiration state.
Buffer solution PBS:
A:KH2PO4Concentration is 1.7mmolL-1；
B:Na2HPO4Concentration is 10mmolL-1；
C:NaCl concentration is 137mmolL-1；
D:KCl concentration is 2.8mmolL-1。
4) the aeration quantity parameter k of aerator is selectedLA=5.3h-1, in the sludge that step 3) enters endogenous respiration, according to
According to selected parameter kLA=5.3h-1, the amount S=150mg/L of single carbon source sodium acetate is added in control, wherein not washing mud group into one
Step addition NO3 -- N is (for potassium nitrate；Additive amount is 20mg/L), breathing map OUR-t curve is obtained at a temperature of 20 ± 0.5 DEG C,
See shown in attached drawing 1 (a), (b)；
On the breathing map OUR-t curve of acquisition, in the identical situation of aeration condition, two groups of OUR-t curves are compared,
Starting point A and A ˊ, wherein contains NO in activated sludge3 -The terminating point (peak value) obviously pulled down when-N is B.
Embodiment analysis:
Sewage treatment plant summer, winter sludge are taken, no NO is respectively divided into3 -- N and and NO3 -Two groups of (A of-NNothing、AHaveAnd BNothing、BHave)
Breathing map OUR-t curve, as shown in Fig. 2 (a), (b), Fig. 3 (a), (b), Fig. 4 (a), (b) and Fig. 5 (a), (b).Pass through survey
Determine sewage treatment plant inflow, water outlet TP, carry out releasing phosphorus test, judges phosphorus removal property, size sequence are as follows: A > B.According to sewage
Breathing map OUR-t curve under treatment plant's difference operating condition, when containing NO3 -When-N, there is the terminating point (peak OUR obviously pulled down
Value) B appearance, the OUR peak value B that the breathing map OUR-t curve of summer group reachesSummerIt is significantly less than winter group BWinter, i.e. size order
Are as follows: A < B.That is, by taking sludge sewage to obtain breathing map OUR-t curve, according to OUR-t song
Whether the line incipient stage has terminating point (OUR peak value) B obviously pulled down appearance, can determine whether contain NO into water3 --N；According to
OUR pulls down the size of peak point B value, can determine that whether there is or not nitrate nitrogens and assessment sludge phosphorus removal property in returned sludge.
To sum up, according to the feasibility of curve proof scheme, the present invention is a kind of dirty using breathing map judgement reflux
Whether there is or not the methods of nitrate nitrogen and assessment sludge phosphorus removal property in mud.
1 sewage treatment plant's overview of table
2 summer of table, winter sewage treatment plant's embodiment
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Using control NO3 -The addition of-N compares the activated sludge dephosphorizing performance under different operating conditions, to obtain the corresponding breathing of condition
Map OUR-t curve, table 2 simply show preferred embodiment, and the organic matter that the claims in the present invention limit is single carbon source
Or mixed carbon source numerically with kLThe value protection range of a corresponding relationship can satisfy the present invention and obtain breathing map OUR-
The requirement of t curve.Except this, right of the present invention further includes the change of other environmental factors, such as temperature, pH.It is any to be familiar with this skill
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by the technical staff in art field, should all cover at this
Within the protection scope of invention.
Claims (7)
1. a kind of determine that whether there is or not the methods of nitrate nitrogen and assessment sludge phosphorus removal property in returned sludge, which is characterized in that this method packet
Include following steps:
1) sludge sewage is taken to be divided into two groups, wherein one group is cleaned multiple times activated sludge with buffer solution
Afterwards, and sufficiently aeration makes activated sludge enter endogenous respiration state；
2) reaction unit is separately added into two groups of activated sludge of step 1), and carries out exposure nitrogen, make it into anaerobic condition, carried out
Stirring；
3) the aeration quantity parameter k of aerator is selectedLA controls the additive amount S of organic matter, obtains breathing map OUR- by calculating
T curve；
4) in identical aeration condition, the breathing map OUR-t curve of two groups of activated sludge is compared, if breathing map
The rapid downward trend at starting point A or A ˊ of OUR-t curve is obvious, and reaches an OUR peak value B, then judges the activated sludge
In have NO3 -- N exists；
5) there is NO3 -In activated sludge existing for-N, activated sludge breathing map OUR-t curve drop-down speed obviously becomes larger,
And reach an OUR peak value, and when OUR peak value is higher, show that sludge phosphorus removal property is poorer.
2. it is described in accordance with the claim 1 it is a kind of determine returned sludge in whether there is or not nitrate nitrogen and assessment sludge phosphorus removal property method,
It is characterized in that, activated sludge enters the detailed process of endogenous respiration state in the step 1) are as follows:
Sludge sewage is taken, and is diluted with the ratio of volume ratio 1:3 addition tap water, activated sludge sample is passed through
1/2 volume stir, precipitate, removing supernatant, being settled to activated sludge dilution washes mud 3 times with PBS buffer solution, Zhi Houtian
Add tap water that active sludge intermixture is settled to the original volume of activated sludge dilution, be aerated 2~3h, in activated sludge enters
Source respiratory state.
3. according to claim 2 it is a kind of determine returned sludge in whether there is or not nitrate nitrogen and assessment sludge phosphorus removal property method,
It is characterized in that, the PBS buffer solution is following components mixed liquor:
A:KH2PO4Concentration is 1.5~2.5mmolL-1；
B:Na2HPO4Concentration is 8~12mmolL-1；
C:NaCl concentration is 135~140mmolL-1；
D:KCl concentration is 2.5~3.0mmolL-1。
4. it is described in accordance with the claim 1 it is a kind of determine returned sludge in whether there is or not nitrate nitrogen and assessment sludge phosphorus removal property method,
It is characterized in that, the organic matter is single carbon source: sodium acetate or glucose, or be mixed carbon source: sanitary sewage, additive amount are
150~700mg/L.
5. it is described in accordance with the claim 1 it is a kind of determine returned sludge in whether there is or not nitrate nitrogen and assessment sludge phosphorus removal property method,
It is characterized in that, exposing the control condition that nitrogen makes it into anaerobic condition to activated sludge in the step 3) are as follows:
DO is lower than 0.5mg/L, and temperature is controlled at 20 ± 1 DEG C.
6. it is described in accordance with the claim 1 it is a kind of determine returned sludge in whether there is or not nitrate nitrogen and assessment sludge phosphorus removal property method,
It is characterized in that, the temperature control that step 3) obtains breathing map OUR-t curve procedures is 8~40 DEG C.
7. it is described in accordance with the claim 1 it is a kind of determine returned sludge in whether there is or not nitrate nitrogen and assessment sludge phosphorus removal property method,
It is characterized in that, map OUR-t curve is breathed according to the activated sludge under sewage treatment plant's difference operating condition, when containing in activated sludge
There is NO3 -When-N, the activated sludge of summer group breathes the OUR peak point B that map OUR-t curve reachesSummerValue is significantly less than winter group
The OUR peak point B that activated sludge breathing map OUR-t curve reachesWinter；I.e. when the OUR peak value that breathing map OUR-t curve reaches
When higher, show that sludge phosphorus removal property is poorer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710100955.8A CN106896190B (en) | 2017-02-23 | 2017-02-23 | Whether there is or not the methods of nitrate nitrogen and assessment sludge phosphorus removal property in a kind of judgement returned sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710100955.8A CN106896190B (en) | 2017-02-23 | 2017-02-23 | Whether there is or not the methods of nitrate nitrogen and assessment sludge phosphorus removal property in a kind of judgement returned sludge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106896190A CN106896190A (en) | 2017-06-27 |
| CN106896190B true CN106896190B (en) | 2019-04-05 |
Family
ID=59184906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710100955.8A Active CN106896190B (en) | 2017-02-23 | 2017-02-23 | Whether there is or not the methods of nitrate nitrogen and assessment sludge phosphorus removal property in a kind of judgement returned sludge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106896190B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009087247A1 (en) * | 2008-01-09 | 2009-07-16 | Universidad Politecnica De Valencia | Device and method for measuring the oxygen uptake rate of activated sludge for a determined concentration of a biodegradable organic substrate |
| CN102092851A (en) * | 2011-01-04 | 2011-06-15 | 武汉理工大学 | Method for removing carbon, nitrogen and phosphorus in sewage cooperatively |
| CN105645576A (en) * | 2016-01-14 | 2016-06-08 | 西安建筑科技大学 | Judgment method and regulation and control method for growth states of activated sludge |
| CN106045046A (en) * | 2016-07-22 | 2016-10-26 | 西安建筑科技大学 | Method for evaluating activated sludge dephosphorization efficiency based on respiratory profile |
| CN106348427A (en) * | 2016-09-20 | 2017-01-25 | 西安建筑科技大学 | Method for assessing whether activated sludge adapts to new environment or not based on breath graph |
-
2017
- 2017-02-23 CN CN201710100955.8A patent/CN106896190B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009087247A1 (en) * | 2008-01-09 | 2009-07-16 | Universidad Politecnica De Valencia | Device and method for measuring the oxygen uptake rate of activated sludge for a determined concentration of a biodegradable organic substrate |
| CN102092851A (en) * | 2011-01-04 | 2011-06-15 | 武汉理工大学 | Method for removing carbon, nitrogen and phosphorus in sewage cooperatively |
| CN105645576A (en) * | 2016-01-14 | 2016-06-08 | 西安建筑科技大学 | Judgment method and regulation and control method for growth states of activated sludge |
| CN105645576B (en) * | 2016-01-14 | 2018-04-10 | 西安建筑科技大学 | A kind of judgement of Activated Sludge Growth state and regulation and control method |
| CN106045046A (en) * | 2016-07-22 | 2016-10-26 | 西安建筑科技大学 | Method for evaluating activated sludge dephosphorization efficiency based on respiratory profile |
| CN106348427A (en) * | 2016-09-20 | 2017-01-25 | 西安建筑科技大学 | Method for assessing whether activated sludge adapts to new environment or not based on breath graph |
Non-Patent Citations (1)
| Title |
|---|
| Oxygen uptake rate measurements for application at wastewater treatment plants;Marinette Hagman et al;《VATTEN》;20071231(第63期);第131–138页 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106896190A (en) | 2017-06-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhong et al. | Nutrient removal process and cathodic microbial community composition in integrated vertical-flow constructed wetland–microbial fuel cells filled with different substrates | |
| CN109596796B (en) | Method for determining anaerobic ammonia oxidation activity of river sediment | |
| Hu et al. | Minimization of nitrous oxide emission from anoxic–oxic biological nitrogen removal process: effect of influent COD/NH4+ ratio and feeding strategy | |
| CN108516617A (en) | A kind of method of sewage water denitrification processing system middle-high density anaerobic ammonium oxidizing bacteria enrichment | |
| Mannina et al. | Greenhouse gases from sequential batch membrane bioreactors: a pilot plant case study | |
| CN109133344A (en) | A method of being precisely controlled bio-denitrifying sewage additional carbon dosage | |
| CN108658229A (en) | A kind of apparatus and method of autotrophy/heterotrophism advanced nitrogen process control | |
| CN103739060B (en) | Device and method for synergistic inhibition of nitrifying bacteria activity to achieve partial nitrification employing free ammonia and free nitrous acid | |
| CN106745734B (en) | Method for analyzing nitrous oxide discharge rate in nitrification and denitrification processes of single-stage biological denitrification system | |
| CN107720946A (en) | Cascade control method in SBR sewage treatment process | |
| CN106896190B (en) | Whether there is or not the methods of nitrate nitrogen and assessment sludge phosphorus removal property in a kind of judgement returned sludge | |
| CN109912015A (en) | A kind of biological denitrification process of livestock breeding wastewater | |
| CN105722796B (en) | The control program of organic waste-water treating apparatus, the processing method of organic wastewater and organic waste-water treating apparatus | |
| Cui et al. | Experimentation and mathematical models for partial nitrification in aerobic granular sludge process | |
| CN108773899A (en) | A kind of fast culture process and culture substrate of aerobic particle mud | |
| Zhao et al. | Pollutant removal from municipal sewage by a microaerobic up-flow oxidation ditch coupled with micro-electrolysis | |
| CN205973971U (en) | Integration anaerobic ammonium oxidation granular sludge denitrification device | |
| JP4278701B1 (en) | Simulation method, simulation apparatus, biological treatment method, and biological treatment apparatus | |
| CN205398393U (en) | Two mud denitrification degree of depth nitrogen and phosphorus removal devices of AAONAO continuous flow based on on -line control | |
| Fang et al. | Significant N2O emission from a high rate granular reactor for completely autotrophic nitrogen removal over nitrite | |
| CN106830158B (en) | Iron-containing compound activated sludge and application thereof in removing estrogen in sewage | |
| CN103911421A (en) | Method used for quantitative measurement of bacteria activity of full autotrophic nitrogen removal technology | |
| CN111812186B (en) | The method comprises the following steps of 15 Quantitative method of nitrogen in N isotope labeled tracer river and lake sediment in different conversion paths | |
| CN105692916B (en) | A kind of function microbial inoculum reinforcing enriching apparatus and acclimation method for river reparation | |
| CN107445297A (en) | A kind of startup method for handling pig farm biogas slurry SNAD techniques |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |