CN204848445U - Carbon source is thrown with controlling means based on denitrification speed analysis appearance - Google Patents
Carbon source is thrown with controlling means based on denitrification speed analysis appearance Download PDFInfo
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- CN204848445U CN204848445U CN201520593153.1U CN201520593153U CN204848445U CN 204848445 U CN204848445 U CN 204848445U CN 201520593153 U CN201520593153 U CN 201520593153U CN 204848445 U CN204848445 U CN 204848445U
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- Prior art keywords
- carbon source
- pond
- analyser
- nitrate
- anoxic pond
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 47
- 238000004458 analytical method Methods 0.000 title claims abstract description 12
- 229910002651 NO3 Inorganic materials 0.000 claims abstract description 25
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000010802 sludge Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000001301 oxygen Substances 0.000 claims abstract description 15
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 15
- 230000003750 conditioning effect Effects 0.000 claims description 13
- 238000004088 simulation Methods 0.000 claims description 4
- 238000005070 sampling Methods 0.000 claims description 3
- 206010021143 Hypoxia Diseases 0.000 abstract 4
- 238000003556 assay Methods 0.000 abstract 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 abstract 1
- 125000000369 oxido group Chemical group [*]=O 0.000 abstract 1
- 241000894006 Bacteria Species 0.000 description 15
- 239000010865 sewage Substances 0.000 description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 238000006731 degradation reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 238000010992 reflux Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000006396 nitration reaction Methods 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- JYYOBHFYCIDXHH-UHFFFAOYSA-N carbonic acid;hydrate Chemical compound O.OC(O)=O JYYOBHFYCIDXHH-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model provides a carbon source is thrown with controlling means based on denitrification speed analysis appearance, including oxygen deficiency pond, good oxygen pond, two heavy ponds, oxido reduction potential analysis appearance is equipped with in the oxygen deficiency pond, be equipped with in the good oxygen pond and dissolve oxygen analyzer and sludge concentration meter, a water sample with for being directed at the oxygen deficiency pond the two play water water samples that sink the pond carry out nitrate assay's nitrate analysis appearance, adjustment device, and be used for surveing in the oxygen deficiency pond with the analysis appearance of activated sludge denitrification speed among the adjustment device.
Description
Technical field
The utility model relates to sewage treatment area, more specifically, relates to a kind of carbon source dosing control device based on denitrification rate analyser.
Background technology
The effluent quality standard that China improves constantly proposes higher requirement to sewage disposal in denitrogenation dephosphorizing, especially the progressively strict implement of total nitrogen index.The removal technology of the main towns sewage work to total nitrogen of Present Domestic still concentrates on the denitrification denitrogenation of sewage, for the Sewage Plant that in water inlet, organic content is low or Volatile fatty acid contents is not high, except the making full use of of interior carbon source, adding of external carbon source becomes total nitrogen key up to standard.Therefore, must suitable carbon source dosing control device be developed, at utmost add carbon source according to need of production, reduce running cost.Existing Sewage Plant mainly measures some external indicators to control the dosage of carbon source, and conscientiously do not consider the auto-degradation ability of denitrifying bacteria, therefore dosage is comparatively large, cannot judge effectively to add with it to add with invalid when increase dosage simultaneously.
At present, sewage work controls generally to be realized by certain feedforward/feedback for adding of external carbon source, wherein relate to amount of inlet water in feedforward link, inside and outside return flow, influent quality, the parameters such as the nitrate of anoxic link, feedback element relates to dissolved oxygen, the sludge concentration of aerobic link, the parameter such as nitrate, total nitrogen of outputted aerobic water, is calculated the dosage of external carbon source, thus controls the accurate dispensing of dosing pump by feedforward and feedback data.
The concentration of aforesaid method energy real-time monitoring nitrate nitrogen, the denitrifying situation of active sludge is reflected by index such as indirect such as monitoring nitrate or total nitrogen etc., but for active sludge, such regulation and control are not direct for the denitrifying capacity of denitrifying bacteria, namely not from denitrifying bacteria auto-degradation ability, when the denitrifying capacity of denitrifying bacteria is stronger, the difference of regulation and control is little, but when the denitrifying capacity of denitrifying bacteria is not strong, above-mentioned regulator control system thinks that water outlet nitrate content height causes not because of carbon source, thus strengthen adding of carbon source, cause larger waste, cannot judge effectively to add when increase dosage with it simultaneously and add with invalid, therefore effectively the adding of degradation capability comprehensive descision medicament in conjunction with denitrifying bacteria self is needed badly.Therefore, the parameter in the urgent need to reflecting based on denitrifying bacteria auto-degradation ability participates in controlling.
Utility model content
In order to solve the problem, propose a kind of carbon source dosing control device based on denitrification rate analyser, comprise anoxic pond, Aerobic Pond, second pond, be equipped with in described anoxic pond: redox potential analyser, in described Aerobic Pond, be equipped with dissolved oxygen analytic instrument and sludge concentration meter; For carrying out the mensuration nitrate analysis instrument of nitrate content to the water sample of anoxic pond and secondary clarifier effluent water sample; For measuring the denitrification rate analyser of active sludge in active sludge on-the-spot in described anoxic pond and described conditioning equipment; And conditioning equipment.
Preferably, described conditioning equipment comprises simulation anoxic pond, agitator, water tank, water inlet sampling device.
Preferably, described carbon source dosing control device also comprises controller, described controller receives the signal from described redox potential analyser, nitrate analysis instrument, denitrification rate analyser, dissolved oxygen analytic instrument and sludge concentration meter, calculates carbon source dosage by these signals.
The utility model has the advantage of the denitrification ability that directly can reflect denitrifying bacteria that denitrification rate instrument can play in carbon source dosing control device, thus provide corresponding carbon source amount based on the denitrification ability of denitrifying bacteria self, accomplish fully effective adding, the dosage of accurate control carbon source, the ability of monitoring sludge denitrification denitrogenation that can be effective, can accurately add effective carbon source amount according to the self-ability of denitrifying bacteria simultaneously, even if significant quantity and ineffective dose can be distinguished when excessive adding simultaneously, regulation and control for biological denitrificaion link at utmost reduce invalid carbon source amount provides reliable basis for estimation.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of present disclosure, the embodiment of the application is described with reference to the accompanying drawings.
Fig. 1 shows according to the carbon source dosing control device based on denitrification rate analyser of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.Embodiment described is in this disclosure only the utility model part embodiment, instead of whole embodiments.Based on embodiment of the present utility model, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to protection domain of the present utility model.Protection domain of the present utility model is not by the restriction of hereafter described embodiment.
In disclosure hereafter, be understandable that, shown embodiment and example are only exemplary.Unless there is special explanation in this article, the definition that the term that the various and element mentioned in present disclosure, parts, equipment, technique are relevant and wording and those of ordinary skill in the art generally understand and implication are consistent.It should be noted that, the shape design of the various units shown in accompanying drawing, pipeline, element and assembly etc. and position are only schematic, should be appreciated that, each element shown in figure can take different forms and form according to field condition in practice, and this does not depart from spirit of the present utility model and purport.
Hereinafter by reference to the accompanying drawings, describe in detail according to the aeration control device based on denitrification rate analyser of the present utility model.
As shown in Figure 1, described carbon source dosing control device 100 comprises carbon source dosing control device 100 based on denitrification rate analyser of the present utility model: anoxic pond 101, Aerobic Pond 102 and second pond 103 and controller 104.In sewage treatment process, treatment sewage enters from anoxic pond 101, enters anoxic pond 101 and Aerobic Pond 102 carries out anoxic denitrification and aerobic nitration treatment,
Sewage after biochemical treatment, enters second pond 103, discharges after solid-liquid separation.The nitrate contained in the internal reflux mud of Aerobic Pond 102 and the external reflux mud of second pond 103 utilizes the carbon source in treatment sewage to carry out denitrification denitrogenation reaction in anoxic pond, and the organism in sewage and ammonia nitrogen, organonitrogen etc. are degraded at Aerobic Pond 102 and generated carbonic acid gas, water and nitrate.
Redox potential analyser (ORP) 105, nitrate analysis instrument 106, denitrification rate analyser 107 and conditioning equipment 109 is equipped with in anoxic pond 101.Conditioning equipment 109 is mainly as the simulation of on-the-spot anoxic pond, and comprising simulation anoxic pond, agitator, water tank and water inlet sampling device and corresponding dissolved oxygen analytic instrument, sludge concentration meter etc., conditioning equipment can every day or arrange in real time.Nitrate analysis instrument 106 is for carrying out the mensuration of nitrate content to the water outlet water sample of anoxic pond 101 and second pond 103, the signal transmission of the nitrate content of mensuration is to controller 104.Denitrification rate analyser 107 is for measuring the denitrification rate of active sludge on-the-spot in anoxic pond 101 and measuring the denitrification rate of active sludge in conditioning equipment 109.
Dissolved oxygen analytic instrument (DO) 110 and sludge concentration meter (MLSS) 111 is provided with in Aerobic Pond 102.Dissolved oxygen analytic instrument 110 is for the dissolved oxygen concentration in continuously measured sewage, and sludge concentration meter 111 is for measuring the concentration of suspended substance in wastewater treatment process.The data transfer that dissolved oxygen analytic instrument 110 and sludge concentration meter 111 record is to controller 104.
Through the sewage of anoxic denitrification and aerobic nitration treatment, enter in second pond 103.The nitrate concentration that nitrate analysis instrument 106 records judges the effect of denitrification denitrogenation as feedback control.When nitrate concentration is higher than set(ting)value, controller thinks that carbon source is inadequate, directly can increase carbon source dosage; When nitrate concentration is lower than set(ting)value, controller thinks that carbon source is applicable to, and minimizing carbon source adds and even stops adding.The effect of denitrification denitrogenation can be judged although it is so using nitrate as indirect parameter, but with it simultaneously, still need further to judge in conjunction with this direct parameter of denitrification rate.
The working process of the carbon source dosing control device based on denitrification rate analyser of the present utility model is as follows:
Carbon source dosing control device based on denitrification rate analyser of the present utility model preferentially carries out the mensuration of denitrification rate in anoxic pond 103, denitrification rate synchronously and in conditioning equipment 109 carries out contrasting to judge that whether the activity of denitrifying bacteria is normal, when monitoring activity and significantly reducing, by in conjunction with ORP, DO, the MLSS in existing system, and the parameter such as water quality, water temperature of water inlet carrys out early warning, synchronously regulates according to the parameter in conditioning equipment 109.
When the denitrification rate of the active sludge in on-the-spot anoxic pond 101 differs less with the active sludge denitrification rate in conditioning equipment 109, can think that anoxic section active sludge self is without considerable change, when both differ greatly, the dissolved oxygen in fielded system controling parameters is preferentially regulated while early warning, the parameters such as reflux ratio, when these parameter regulation effects are bad, and add according to nitrate concentration the denitrification rate that carbon source can improve mud in regulation system, then add carbon source in on-the-spot anoxic pond 101, the carbon source dosage wherein calculated by nitrate concentration and denitrification rate is effective dosage, the on-the-spot carbon source added caused for offsetting dissolved oxygen more than needed etc. is invalid dosage more, then carbon source is not added in on-the-spot anoxic pond when adding denitrification rate that carbon source can not improve mud in regulation system.
By the carbon source dosing control device based on denitrification rate analyser of the present utility model, the wherein denitrification rate instrument denitrification ability that directly can reflect denitrifying bacteria that can play in carbon source dosing control device, thus provide corresponding carbon source amount based on the denitrification ability of denitrifying bacteria self, accomplish fully effective adding, the dosage of accurate control carbon source, the ability of monitoring sludge denitrification denitrogenation that can be effective, can accurately add effective carbon source amount according to the self-ability of denitrifying bacteria simultaneously, even if significant quantity and ineffective dose can be distinguished when excessive adding simultaneously, regulation and control for biological denitrificaion link at utmost reduce invalid carbon source amount provides reliable basis for estimation.
Therefore, the utility model, by the degradation capability of denitrification rate index reflection denitrifying bacteria self, accurately can judge effective dosage of medicament further while early warning.
The above; be only the utility model preferably embodiment; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (3)
1., based on a carbon source dosing control device for denitrification rate analyser, comprise anoxic pond, Aerobic Pond, second pond,
Be equipped with in described anoxic pond: redox potential analyser, in described Aerobic Pond, be equipped with dissolved oxygen analytic instrument and sludge concentration meter;
For carrying out the mensuration nitrate analysis instrument of nitrate content to the water sample of anoxic pond and described secondary clarifier effluent water sample;
Conditioning equipment;
Active sludge on-the-spot in described anoxic pond and the denitrification rate analyser of described conditioning equipment is measured for timesharing.
2. carbon source dosing control device according to claim 1, described conditioning equipment comprises simulation anoxic pond, agitator, water tank, water inlet sampling device.
3. carbon source dosing control device according to claim 2, also comprise controller, described controller receives from described redox potential analyser, nitrate analysis instrument, denitrification rate analyser, dissolved oxygen analytic instrument and sludge concentration meter signal, calculates carbon source dosage by these signals.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520593153.1U CN204848445U (en) | 2015-08-07 | 2015-08-07 | Carbon source is thrown with controlling means based on denitrification speed analysis appearance |
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| CN201520593153.1U CN204848445U (en) | 2015-08-07 | 2015-08-07 | Carbon source is thrown with controlling means based on denitrification speed analysis appearance |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422928A (en) * | 2019-08-19 | 2019-11-08 | 中国市政工程华北设计研究总院有限公司 | A kind of anoxic pond fining carbon source adds control system and progress control method |
| CN114560561A (en) * | 2022-03-14 | 2022-05-31 | 北京碧水源科技股份有限公司 | MBR process nitrogen and phosphorus removal dosing coupling membrane pollution intelligent control system and method |
| CN115504634A (en) * | 2022-11-03 | 2022-12-23 | 江苏南大华兴环保科技股份公司 | Preposed denitrification graded biological denitrification reaction system and device |
-
2015
- 2015-08-07 CN CN201520593153.1U patent/CN204848445U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422928A (en) * | 2019-08-19 | 2019-11-08 | 中国市政工程华北设计研究总院有限公司 | A kind of anoxic pond fining carbon source adds control system and progress control method |
| CN110422928B (en) * | 2019-08-19 | 2024-01-12 | 中国市政工程华北设计研究总院有限公司 | Refined carbon source adding control system and operation control method for anoxic tank |
| CN114560561A (en) * | 2022-03-14 | 2022-05-31 | 北京碧水源科技股份有限公司 | MBR process nitrogen and phosphorus removal dosing coupling membrane pollution intelligent control system and method |
| CN114560561B (en) * | 2022-03-14 | 2023-11-03 | 北京碧水源科技股份有限公司 | Intelligent control system and method for denitrification and dephosphorization dosing coupling membrane pollution of MBR process |
| CN115504634A (en) * | 2022-11-03 | 2022-12-23 | 江苏南大华兴环保科技股份公司 | Preposed denitrification graded biological denitrification reaction system and device |
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Effective date of registration: 20160322 Address after: 100192, Beijing, Haidian District, 66 small West Road, Zhongguancun Dongsheng science and Technology Park (North Territory) D District, building 2, 4 floor Patentee after: CSD WATER SERVICE CO., LTD. Address before: 114051 Anshan city of Liaoning Province, University of Science and Technology Liaoning Longyuan apartment Patentee before: Yi Zhanbo |