CN106348427A - Method for assessing whether activated sludge adapts to new environment or not based on breath graph - Google Patents
Method for assessing whether activated sludge adapts to new environment or not based on breath graph Download PDFInfo
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Abstract
The invention discloses a method for assessing whether activated sludge adapts to a new environment or not based on a breath graph, comprising: 1) subjecting activated sludge of a wastewater treatment plant to breath graph analysis to obtain two breath graph DO-t curves; 2) fitting the two breath graph DO-t curves respectively obtain their slopes so as to obtain endogenous respiratory rate OURe, and total respiratory rate OURt after the addition of a nitrogen source and a carbon source; 3) acquiring OURe/OURt-t curve; 4) assessing whether the activated sludge adapts to a new environment or not according to the variation trend of the OURe/OURt-t curve; the curve tends to rise and then stabilize or rise and then fall, which indicates that the activated sludge is adaptive to the new environment; if the curve still remains rising, namely tending to continuously rise, one week after environmental conditions change, it is indicated that the activated sludge is not adaptive to the new environment. By judging according to the endogenous respiratory rate (OURe/OURt) trend of the activated sludge, whether the activated sludge adapts to a new environment or not is assessed simply and effectively.
Description
Technical field
The invention belongs to sewage treatment area, it is related to a kind of analysis by activated sludge is breathed with collection of illustrative plates, assessment activity
The method whether mud shakes down.
Background technology
Activated sludge process is the sewage disposal technology being most widely used at present, accounts for the 90% of urban sewage treatment process
With technique for treating industrial wastewater 50% about above.And the core of activated sludge process is exactly activated sludge, stain disease is processed
The quality of effect depends on the characteristic of Microbial Communities in Activated Sludge, but the change of environmental condition often affects activated sludge knot
Structure and the change of activity, thus affect the treatment effect of stain disease.Thus, understand the tolerance journey to environmental change for the activated sludge
Spend, whether assessment activated sludge shakes down and be just particularly important in other words.
At present, numerous studies are concentrated mainly in the determination of activity of activated sludge, and rarely have to whether activated sludge adapts to
The method that new environment is estimated.Measure activity of activated sludge method have a lot, including activated sludge atp determination,
Active sludge oxygen-consuming rate algoscopy and dehydrogenase activity method etc..In activated sludge, atp comparision contents are stable, the life of biology
Long speed does not interfere with atp/ living organism amount ratio, and after biological death, atp disappears at once.The concentration of atp and active sludge biological
Amount is directly related, also directly related with the rate of metabolism of active sludge microorganism.Highly active activated sludge, microorganism has
There are high metabolic speed, the intracellular atp having high concentration；Active sludge oxygen-consuming rate (our) can provide activated sludge to live
The essential information of property, when our value is for 20～40g o2/ (kgvss h), shows that activated sludge is active, if our value is 5
During～10g o2/ (kgvss h), its value is relatively low, shows that activity of activated sludge is poor；Dehydrogenase activity method is to utilize dehydrogenase
Catalyzing organic dehydrogenation, then hydrogen be delivered to specific hydrogen acceptor (in Aerobic Process for Treatment, last hydrogen acceptor is molecular oxygen),
And the biological treatment of waste water is exactly to make the Organic substance in waste water be decomposed into relatively simple compound using the effect of microorganism,
Therefore, the activity of dehydrogenase also represent the activity of activated sludge.But the above is all the mensure to activity of activated sludge,
Whether not direct method assessment activated sludge shakes down at present.
Along with existing middle or small sewage treatment, due to the talent, equipment shortage it is impossible to simple, efficiently
To the change of environment (such as: do, temperature, ph, chemical agent addition etc.) condition, whether lower activated sludge adapts to the change of environment,
Accurately assessed and judged.Based on above present situation, propose a kind of method, establish a kind of letter by breathing atlas analysis
The method whether single easy assessment activated sludge shakes down becomes current this area technical problem urgently to be resolved hurrily.
Content of the invention
It is an object of the invention to provide a kind of assess, based on breathing collection of illustrative plates, the method whether activated sludge shakes down,
The method utilize aerobic under the conditions of obtain activated sludge breathing collection of illustrative plates do-t curve, its slope is obtained by matching, then draws
Go out a curve of oure/ourt-t, by the variation tendency of oure/ourt-t curve, whether accurate evaluation activated sludge adapts to
Environment.
A kind of method whether adapting to environment as assessment activated sludge, Sewage Plant activated sludge test result shows: I
Invent the method that whether shakes down of activated sludge is assessed based on breathing collection of illustrative plates can be accurately and efficiently to activated sludge
Whether shake down and be estimated.
The purpose of the present invention is realized by following technical proposals.
1. a kind of of offer according to embodiments of the present invention assesses what whether activated sludge shaked down based on breathing collection of illustrative plates
Method, the method comprises the following steps:
1) take sludge sewage, with buffer solution, activated sludge is cleaned multiple times, and abundant aeration,
Activated sludge is made to enter endogenous respiration state；
2) after activated sludge enters endogenous respiration state, it is sufficiently stirred for, obtain first paragraph breathing collection of illustrative plates do-t curve, intend
Conjunction obtains its slope, as activated sludge endogenous respiration rate oure；
3) in step 2) be separately added into nitrogen source and carbon source in activated sludge, then fully aeration to dissolved oxygen do reach 7mg/l with
On, it is sufficiently stirred for, obtains another section of breathing collection of illustrative plates do-t curve, matching obtains its slope, as total breathing rate ourt；
4) repeat step 1) -3), respectively obtain time dependent endogenous respiration rate oure value and always breathe speed with mud
Rate ourt value；
5) use the drafting of oure/ourt ratio with regard to the curve of time t, according to the variation tendency of oure/ourt-t curve, comment
Estimate whether activated sludge shakes down, if curve be in first rise after steadily or downward trend after first rising, indicate activated sludge
It is adapted to new environment；If curve is in continue ascendant trend, indication activated sludge is not suitable with new environment；
Described adaptable new environment includes: activated sludge switchs to the environment of low dissolved oxygen from normal dissolved oxygen；In activated sludge
Chlorine dosage is the environment of low chlorine dose；
The unconformable new environment of described activated sludge includes: in activated sludge, chlorine dosage is the environment of high chlorine dose.
Further, described step 1) in, the detailed process that activated sludge enters endogenous respiration state is:
Take the activated sludge 300ml of sewage treatment plant, and with the ratio interpolation tap water of volume ratio 1:3, mud is carried out dilute
Release, activated sludge sample is passed through 1/2 volume stir, precipitate, removing supernatant, being settled to activated sludge diluent, Ran Houyong
Pbs buffer solution, with 0.2ml/s, enters 3s detergent active mud once, so repeats to wash mud 3 times, adds tap water afterwards and will live
Property mud mixed liquid be settled to the original volume of activated sludge diluent, i.e. 1.2l, aeration 2h, activated sludge enters endogenous respiration shape
State.
Further, described step 2), 3) in, breathing the following condition of collection of illustrative plates do-t curve negotiating control obtain:
Control do persistent period decline stage t:5≤t≤25min and do decline stage excursion: 6.0≤do≤
4.0mg/l.
Further, step 2), 3) in obtain breathing collection of illustrative plates do-t curve procedures temperature control be 8～45 DEG C.
Further, step 1) in, the buffer solution of described cleaning mud is pbs buffer solution, and this buffer solution is following
Component mixed liquor:
A:kh2po4Concentration is 1.5～2.5mmol l-1；
B:na2hpo4Concentration is 8～12mmol l-1；
C:nacl concentration is 135～140mmol l-1；
D:kcl concentration is 2.5～3.0mmol l-1.
Further, step 3) described in mud added in the every in mass ratio 1g activated sludge of nitrogen source add 3～14mg nitrogen
Element quality nitrogen-containing compound.
Further, step 3) described in mud add nitrogen source be Nitrogen element inorganic matters or Nitrogen element Organic substance, institute
Stating Nitrogen element inorganic matters is ammonium chloride or ammonium sulfate；Described Nitrogen element Organic substance is carbamide.
Further, step 3) described in mud added in the every in mass ratio 1g activated sludge of carbon source add 200～700mg
Carbon elements Organic substance；Described carbon source is single carbon source: sodium acetate, glucose, or starch.
Further, described add nitrogen source and the mass ratio of carbon source adds according to dried activated sludge ratio.
Further, described normal dissolved oxygen do is 2-4mg/l, and described low dissolved oxygen is do ＜ 0.5mg/l；
Described low chlorine dose is naclo≤8 ‰ in activated sludge, and high chlorine dose is naclo >=15 ‰ in activated sludge.
Further, the decision method that whether described activated sludge shakes down is:
Judge whether activated sludge shakes down according to the variation tendency of oure/ourt-t curve: 1. curve is in and first goes up
After rising steadily or downward trend after first rising, indication activated sludge is adapted to new environment；2. curve changes one in environmental condition
Still rising after week, that is, be in continue ascendant trend, illustrate endogenous respiration rate oure in increase, the exhaling of corresponding feature flora
Inhale speed weakening, indication activated sludge cannot shake down, and the activity of feature flora is by continuous decrease until disappearing,
Disintegrate eventually；3. curve is on a declining curve, and indication new environment is conducive to the existence of feature flora, is conducive to the life of activated sludge
Long.
The invention has the advantages that
1) present invention finds endogenous respiration rate oure and total breathing rate ourt ratio (oure/ourt) in breathing collection of illustrative plates
With accurate evaluation activated sludge whether the relation between whether the variation tendency of t and activated sludge shake down in time, can
Shake down, and then the index shaking down for solving instruction activated sludge provides effective decision method, has one
Fixed directive significance.
2) the inventive method is easy to detect.Step is simple, and test equipment automatization, such as using Xi'an green mark water
The wbm series sewage disposal wisdom that environmental science and technology company limited provides runs work station, you can in the case of unattended certainly
Dynamicization is tested to mud to be tested.
3) parameter that the present invention is used not this non-intuitive of water quality characterize Sewage Plant ruuning situation index, but close
Note is on the core main body mud of sewage disposal.The oneself state of mud is only the key that real impact Sewage Plant is run.And this
Invention provided with activated sludge endogenous respiration ratio (oure/ourt) with regard to the variation tendency of time t, as activated sludge be
The no indication index shaking down, even more simple, intuitive is easy in the detection.
Brief description
Fig. 1 (a) (b) (c) (d) is respectively Xi'an Sewage Plant activated sludge to be reduced do and is adding different amounts of chlorine
Under the conditions of sour sodium, obtained (oure/ourt)-t curve.
Specific embodiment
Below by drawings and Examples, the present invention is described further.
By breathing atlas analysis to activated sludge, the present invention assesses whether activated sludge shakes down.
Whether present invention assessment activated sludge shakes down, and comprises the following steps:
1) take sludge sewage 300ml, add tap water with the ratio of volume ratio 1:3 and mud is diluted,
Activated sludge sample is passed through 1/2 volume stir, precipitate, removing supernatant, being settled to activated sludge diluent, then use pbs
Buffer solution, with 0.2ml/s, enters 3s detergent active mud once, so repeats to wash mud 3 times, and adding tap water afterwards will be dirty for activity
Mud mixed liquor is settled to the original volume of activated sludge diluent, i.e. 1.2l, and abundant aeration 2h, so that activated sludge is entered endogenous
Breathing state；
Buffer solution is following components mixed liquor:
A:kh2po4 concentration is 1.5～2.5mmol l-1；
B:na2hpo4 concentration is 8～12mmol l-1；
C:nacl concentration is 135～140mmol l-1；
D:kcl concentration is 2.5～3.0mmol l-1.
2) it is sufficiently stirred for after entering endogenous respiration state, is obtained first paragraph do-t curve, matching is obtained its slope, that is,
For activated sludge endogenous respiration rate oure；
3) in step 2) terminate after, mud adds in the every in mass ratio 1g activated sludge of nitrogen source and adds the nitrogenous unit of 3～14mg
Plain inorganic matters (ammonium chloride or ammonium sulfate) or Nitrogen element Organic substance (carbamide).Add the every in mass ratio 1g activated sludge of carbon source
Middle addition 200～700mg carbon elements Organic substance (sodium acetate, glucose or starch).Fully aeration to dissolved oxygen do reach 7mg/l with
On, it is sufficiently stirred for, finally obtains another section of breathing collection of illustrative plates do-t curve, matching obtains its slope, as total breathing rate ourt；
Breathing collection of illustrative plates do-t curve meets condition: controls do persistent period decline stage t:5≤t≤25min and do to decline
Phase change scope: 6.0≤do≤4.0mg/l.The temperature control obtaining breathing collection of illustrative plates do-t curve procedures is 8～45 DEG C.
Add nitrogen source and the mass ratio of carbon source adds according to dried activated sludge ratio.
4) repeat step 1)～3), respectively obtain time dependent endogenous respiration rate oure value and always breathe speed with mud
Rate ourt value.
5) use the drafting of oure/ourt ratio with regard to the curve of time t, according to the variation tendency of oure/ourt-t curve, comment
Estimate whether activated sludge shakes down: 1. curve be in first rise after steadily or downward trend after first rising, indicate activated sludge
It is adapted to new environment；2. curve is still rising after environmental condition changes one week, that is, be in continue ascendant trend, endogenous exhaling is described
Inhaling speed oure is increasing, and the breathing rate of corresponding feature flora is weakening, and indication activated sludge cannot shake down,
Continuous decrease until disappearing, is finally disintegrated by the activity of feature flora；3. curve is on a declining curve, and indication new environment is conducive to
The existence of feature flora, is conducive to the growth of activated sludge.
Wherein, feature flora includes autotrophic bacteria and heterotrophic bacteria.
Total breathing rate ourt=endogenous respiration rate oure+ is to remove the breathing rate of the autotrophic bacteria based on ammonia nitrogen+go
Except bod5Heterotrophic bacteria breathing rate.
Activated sludge is suitable for new environment and includes:
1. activated sludge switchs to the environment of low dissolved oxygen in normal dissolved oxygen；Normal dissolved oxygen do is 2-4mg/l, and described low dissolved oxygen is
Do ＜ 0.5mg/l；2. in activated sludge chlorine dosage≤8 ‰ environment.
Activated sludge cannot shake down including: in activated sludge chlorine dosage be naclo >=15 ‰ environment.
Further illustrate effect of the present invention below by specific embodiment.
1) to from Xi'an sewage treatment plant a2/ o process activity mud is sampled；
2) the wbm450 series wisdom that Xi'an Lv Biao water environment Science and Technology Ltd. provides is selected to run work station as obtaining
Obtain the equipment that activated sludge breathes collection of illustrative plates do-t curve；
3) take sludge sewage 300ml, and add tap water dilution with the ratio of volume ratio 1:3, by activity
Mud sample passes through 1/2 volume stir, precipitate, removing supernatant, being settled to activated sludge diluent, is washed with pbs buffer solution
Mud 3 times, adds tap water afterwards and active sludge intermixture is settled to the original volume of activated sludge diluent, i.e. 1.2l, fully
Aeration 2h, activated sludge enters endogenous respiration state；
4) in step 3) after mud enters endogenous respiration, carry out being sufficiently stirred for 30min, obtain breathing collection of illustrative plates do-t curve,
Take the segment that dissolved oxygen is 6-4mg/l, matching obtains its slope, that is, obtain endogenous respiration rate oure；
Table 1 gives different embodiment technological parameter situations in this experiment and enumerates.
The different embodiment raw material process parameter of table 1
5) in step 4) terminate after, add nitrogen source so that ammonia nitrogen concentration is 50mg/l, add carbon source so that cod in container
Concentration is 300mg/l, and then fully aeration reaches 7mg/l level above to dissolved oxygen do, carries out afterwards being sufficiently stirred for 30min, in temperature
Obtain another section of breathing collection of illustrative plates do-t curve under degree, take the segment that dissolved oxygen is 6-4mg/l, matching obtains its slope, then can obtain
Add total breathing rate ourt after carbon to mud plus nitrogen；
6) reducing do (< 0.5mg/l) and adding repetition on the basis of different amounts of sodium hypochlorite (2 ‰, 8 ‰, 15 ‰)
Above step has carried out continuous monitoring to mud, time dependent endogenous respiration rate oure value and dirt under the conditions of obtaining each
Mud total breathing rate our value, draws the curve with regard to time t with oure/ourt ratio.
Embodiment is analyzed:
Take Xi'an sewage treatment plant a2/ o process activity mud, by reducing do (wherein normal do is 2-4mg/l),
With add different amounts of sodium hypochlorite, record the breathing collection of illustrative plates do-t curve under the conditions of each.By the breathing collection of illustrative plates do-t obtaining
Curve, obtains the oure/ourt curve under each environmental condition, as shown in Figure 1.Fig. 1 (a) is that reactor runs under normal dissolved oxygen
For a period of time, switch to low dissolved oxygen (< 0.5mg/l) environment after, change its environment again after a period of time, restore it into normal dissolved oxygen
It is simultaneously introduced 15 ‰ naclo, the curvilinear motion figure of activated sludge oure/ourt-t；And Fig. 1 (b) be restart experiment after, activity
Mud is survived a period of time under normal dissolved oxygen, after switch to the oure/ourt-t curve of existence under low dissolved oxygen (< 0.5mg/l) and become
Change figure；Fig. 1 (c) (d) is two tests of same time, and in figure rectangle broken line represents that naclo's adds process, after adding 2 ‰
A period of time adds 8 ‰ then to stop adding the activated sludge oure/ourt-t curvilinear motion figure of naclo.Find adding not
After commensurability sodium hypochlorite, under high chlorine dose (15mg/g ss), mud disintegrates, and that is, mud cannot shake down；And low
Under chlorine dose (2 ‰, 8 ‰), mud then will not disintegrate, and that is, mud is adapted to new environment, and in the test reducing do, mud is not sent out
Raw disintegration, that is, mud is adapted to new environment.Contrast its each under the conditions of oure/ourt-t curve it is clear that: 1. curve
Under low dissolved oxygen or low chlorine dose environmental condition be in first rise after steadily or downward trend after first rising, when adding 2 ‰ latter one section
Between add and stop chlorination after 8 ‰ naclo, curve be also in first rise after downward trend, indication activated sludge is adapted to new ring
Border, the rising of its transience is because that microorganism is carrying out accommodation；2. the high chlorine dose environmental condition lower curve 15 ‰ is in
Continue ascendant trend, indication activated sludge cannot shake down, and the sustained activity of feature flora declines until disappearing, finally
Disintegrate.3. curve is in direct downward trend, and indication new environment is conducive to the existence of feature flora, is conducive to the life of activated sludge
Long.The activated sludge situation that the oure/ourt-t plots changes that this is obtained with experiment are reflected is consistent, fits like a glove.?
That is, obtain breathing collection of illustrative plates do-t curve by taking sludge sewage, oure/ourt-t is obtained according to it bent
Whether line, by the variation tendency of this curve, just can accurate evaluation activated sludge shake down.
As fully visible, the present invention is a kind of method whether being shaked down based on breathing collection of illustrative plates assessment activated sludge.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
By the way of the dosage of adjustment do amount and chlorine, control the change of do-t curve do t, do decline stage persistent period decline stage
Changing scope, thus obtaining breathing collection of illustrative plates do-t curve, then obtaining in oure/ourt-t curve procedures, here simply show
Preferred embodiment, except this, right of the present invention also includes the change of other environmental factorss, such as temperature, ph etc..Any it is familiar with this skill
The technical staff in art field the invention discloses technical scope in, the change or replacement that can readily occur in, all should cover at this
Within the protection domain of invention.
Claims (10)
1. a kind of method whether being shaked down based on breathing collection of illustrative plates assessment activated sludge is it is characterised in that the method includes
Following steps:
1) take sludge sewage, with buffer solution, activated sludge is cleaned multiple times, and abundant aeration, make work
Property mud enter endogenous respiration state；
2) after activated sludge enters endogenous respiration state, it is sufficiently stirred for, obtains first paragraph breathing collection of illustrative plates do-t curve, matching obtains
To its slope, as activated sludge endogenous respiration rate oure；
3) in step 2) it is separately added into nitrogen source and carbon source in activated sludge, then fully aeration reaches more than 7mg/l to dissolved oxygen do, fills
Divide stirring, obtain another section of breathing collection of illustrative plates do-t curve, matching obtains its slope, as total breathing rate ourt；
4) repeat step 1) -3), respectively obtain time dependent endogenous respiration rate oure value and the total breathing rate of mud
Ourt value；
5) use the drafting of oure/ourt ratio with regard to the curve of time t, according to the variation tendency of oure/ourt-t curve, assessment is lived
Property mud whether shake down, if curve be in first rise after steadily or downward trend after first rising, indication activated sludge is permissible
Shake down；If curve is in continue ascendant trend, indication activated sludge cannot shake down；
The adaptable new environment of described activated sludge includes: activated sludge switchs to the environment of low dissolved oxygen from normal dissolved oxygen, or activity
In mud, chlorine dosage is the environment of low chlorine dose；
The unconformable new environment of described activated sludge includes: in activated sludge, chlorine dosage is the environment of high chlorine dose.
2. according to a kind of method whether being shaked down based on breathing collection of illustrative plates assessment activated sludge described in claim 1, its
It is characterised by, described step 1) in, activated sludge enters endogenous respiration state detailed process and is:
Take the activated sludge 300ml of sewage treatment plant, and add tap water with the ratio of volume ratio 1:3 and mud is diluted, will
Activated sludge sample passes through 1/2 volume stir, precipitate, removing supernatant, being settled to activated sludge diluent, is then delayed with pbs
Rush solution with 0.2ml/s, enter 3s detergent active mud once, so repeat to wash mud 3 times, add tap water afterwards by activated sludge
Mixed liquor is settled to the original volume of activated sludge diluent, i.e. 1.2l, aeration 2h, and activated sludge enters endogenous respiration state.
3. according to a kind of method whether being shaked down based on breathing collection of illustrative plates assessment activated sludge described in claim 1, its
Be characterised by, described step 2), 3) in, breathing the following condition of collection of illustrative plates do-t curve negotiating control obtain:
Control do persistent period decline stage t:5≤t≤25min and do decline stage excursion: 6.0≤do≤4.0mg/l.
4. according to a kind of method whether being shaked down based on breathing collection of illustrative plates assessment activated sludge described in claim 1, its
Be characterised by, step 2), 3) in obtain breathing collection of illustrative plates do-t curve procedures temperature control be 8～45 DEG C.
5. according to a kind of method whether being shaked down based on breathing collection of illustrative plates assessment activated sludge described in claim 1, its
It is characterised by, step 1) in, the buffer solution of described cleaning mud is pbs buffer solution, and this buffer solution mixes for following components
Conjunction liquid:
A:kh2po4Concentration is 1.5～2.5mmol l-1；
B:na2hpo4Concentration is 8～12mmol l-1；
C:nacl concentration is 135～140mmol l-1；
D:kcl concentration is 2.5～3.0mmol l-1.
6. according to a kind of method whether being shaked down based on breathing collection of illustrative plates assessment activated sludge described in claim 1, its
Be characterised by, step 3) described in mud added in the every in mass ratio 1g activated sludge of nitrogen source add 3～14mg nitrogen matter
Amount nitrogen-containing compound；Described is Nitrogen element inorganic matters or Nitrogen element Organic substance to mud addition nitrogen source, described Nitrogen element
Inorganic matters are ammonium chloride or ammonium sulfate；Described Nitrogen element Organic substance is carbamide.
7. according to a kind of method whether being shaked down based on breathing collection of illustrative plates assessment activated sludge described in claim 1, its
Be characterised by, step 3) described in mud added in the every in mass ratio 1g activated sludge of carbon source add 200～700mg carbon containing unit
Plain Organic substance；Described carbon elements Organic substance is single carbon source: sodium acetate, glucose or starch.
8. according to a kind of method whether being shaked down based on breathing collection of illustrative plates assessment activated sludge described in claim 1, its
It is characterised by, activated sludge is added with nitrogen source and the mass ratio of carbon source adds according to dried activated sludge ratio.
9. according to a kind of method whether being shaked down based on breathing collection of illustrative plates assessment activated sludge described in claim 1, its
It is characterised by, described normal dissolved oxygen do is 2-4mg/l, described low dissolved oxygen is do ＜ 0.5mg/l；
Described low chlorine dose is naclo≤8 ‰ in activated sludge, and high chlorine dose is naclo >=15 ‰ in activated sludge.
10. according to a kind of method whether being shaked down based on breathing collection of illustrative plates assessment activated sludge described in claim 1, its
It is characterised by, the decision method whether described activated sludge shakes down is:
Judge whether activated sludge shakes down according to the variation tendency of oure/ourt-t curve: after 1. curve is in first rising
Downward trend after rising steadily or first, indication activated sludge is adapted to new environment；2. curve is after environmental condition changes one week
Still rising, that is, be in continue ascendant trend, illustrating that endogenous respiration rate oure is increasing, the breathing speed of corresponding feature flora
Weakening, indication activated sludge cannot shake down rate, the activity of feature flora by continuous decrease until disappearing, last solution
Body；3. curve is on a declining curve, and indication new environment is conducive to the existence of feature flora, is conducive to the growth of activated sludge.
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| CN107502651A (en) * | 2017-08-09 | 2017-12-22 | 西安建筑科技大学 | A kind of method that activated Sludge System robustness is assessed in invigoration effect based on calcium |
| CN108375610A (en) * | 2018-01-18 | 2018-08-07 | 大连民族大学 | A kind of bearing calibration for analyzing sludge enzymatic activity based on temperature inhibiting rate |
| CN108675439A (en) * | 2018-05-18 | 2018-10-19 | 西安建筑科技大学 | A method of selection sewage disposal process regulation measure |
| CN108918491A (en) * | 2018-07-16 | 2018-11-30 | 西安建筑科技大学 | A method of breathing map and spectrum combination determine river state and self-purification capacity |
| CN110579567A (en) * | 2019-09-06 | 2019-12-17 | 西安建筑科技大学 | Method for evaluating denitrification effect of activated sludge based on respiratory map |
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| CN107502651A (en) * | 2017-08-09 | 2017-12-22 | 西安建筑科技大学 | A kind of method that activated Sludge System robustness is assessed in invigoration effect based on calcium |
| CN107502651B (en) * | 2017-08-09 | 2020-03-17 | 西安建筑科技大学 | Method for evaluating robustness of activated sludge system based on calcium strengthening effect |
| CN108375610A (en) * | 2018-01-18 | 2018-08-07 | 大连民族大学 | A kind of bearing calibration for analyzing sludge enzymatic activity based on temperature inhibiting rate |
| CN108675439A (en) * | 2018-05-18 | 2018-10-19 | 西安建筑科技大学 | A method of selection sewage disposal process regulation measure |
| CN108675439B (en) * | 2018-05-18 | 2020-08-28 | 西安建筑科技大学 | Method for selecting regulation and control measures in sewage treatment process |
| CN108918491A (en) * | 2018-07-16 | 2018-11-30 | 西安建筑科技大学 | A method of breathing map and spectrum combination determine river state and self-purification capacity |
| CN108918491B (en) * | 2018-07-16 | 2020-11-06 | 西安建筑科技大学 | Method for determining river state and self-purification capacity by combining respiration spectrum and spectrum |
| CN110579567A (en) * | 2019-09-06 | 2019-12-17 | 西安建筑科技大学 | Method for evaluating denitrification effect of activated sludge based on respiratory map |
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