CN203668119U - Circulating turn-back flow oxidation ditch - Google Patents
Circulating turn-back flow oxidation ditch Download PDFInfo
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- CN203668119U CN203668119U CN201420042796.2U CN201420042796U CN203668119U CN 203668119 U CN203668119 U CN 203668119U CN 201420042796 U CN201420042796 U CN 201420042796U CN 203668119 U CN203668119 U CN 203668119U
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- ditch
- section
- oxidation
- oxidation ditch
- pond
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Abstract
The utility model discloses a circulating turn-back flow oxidation ditch which comprises an oxidation ditch body. A first ditch, a second ditch, a third ditch and a fourth ditch are sequentially arranged to form the oxidation ditch body, and aeration machines are arranged in the oxidation ditch body, so that aerobic sections are formed in the fronts of the aeration machines. The circulating turn-back flow oxidation ditch is characterized in that an anaerobic tank is parallelly arranged outside the first ditch, a preconditioning hypoxia section and an anaerobic section are formed in the anaerobic tank in a separated manner, a sludge return pipeline connected with a sludge return pump room is arranged on the anaerobic tank in a communicated manner and respectively communicated into the preconditioning hypoxia section and the anaerobic section, feed water in the oxidation ditch body sequentially and circularly flows through the tail end of the first ditch, the fourth ditch, the third ditch, the second ditch and the starting position of the first ditch, sewage is treated, and a water outlet is formed in the starting position of the first ditch. The circulating turn-back flow oxidation ditch has the advantages that the circulating turn-back flow oxidation ditch is simple in structure, fine in phosphorous removal effect and more stable in effluent quality, implementation, regulation and control are facilitated and the like.
Description
Technical field
The utility model relates to the sewage treatment oxidation ditch in a kind of sewage work, especially a kind of circulating baffling oxidation ditch.
Background technology
Circulating baffling oxidation ditch, is again Carrousel oxidation ditch, and it is made up of the oxidation ditch of mutually connecting side by side and from beginning to end, and sewage circulates and processes therein.Carrousel oxidation ditch uses directed aeration and the agitator of controlling, and transmits horizontal velocity to mixed solution, thereby the mixed solution being stirred is flowed at the closed channel internal recycle of oxidation ditch.Therefore oxidation ditch has special hydromechanics fluidised form, the feature of existing complete mixing reactor, has again the feature of plug flow reactor, has obvious dissolved oxygen concentration gradient in ditch, what be positioned at aerator front is aerobic section, is anoxic section away from the section of aerator position.
Traditional circulating baffling oxidation ditch, the effect of its dephosphorization is poor, and its effluent quality is generally controlled by the DO content in monitoring water treatment procedure simultaneously, and it judges that reliability is poor, and in water treatment procedure, Modulatory character is poor, and water quality is difficult to stably reaching standard.
Utility model content
For the deficiencies in the prior art, technical problem to be solved in the utility model is, how to provide a kind of phosphor-removing effect good, is beneficial to regulation and control, the circulating baffling oxidation ditch that effluent quality is more stable.
In order to solve the problems of the technologies described above, in the utility model, adopt following technical scheme:
A kind of circulating baffling oxidation ditch, comprise the oxidation ditch body being formed by tactic the first ditch, the second ditch, the 3rd ditch and the 4th ditch, article four, ditch head and the tail are connected successively and make sewage be circulating baffling therein to flow, be provided with aerator and make aerator front form aerobic section in oxidation ditch body, it is characterized in that, described the first ditch outside is set side by side with an anaerobic pond, in described anaerobic pond, be separated by and be formed with pre-anoxic section and anaerobism section, pre-anoxic section place and anaerobism section are communicated with setting and pre-anoxic section has water-in, described anaerobism section is provided with the first ditch afterbody and is communicated with the inlet channel arranging away from pre-anoxic section one end, on described anaerobic pond, be also communicated with and be provided with the sludge return pipe being connected with sludge reflux pump house, described sludge return pipe is communicated to respectively in pre-anoxic section and anaerobism section, in oxidation ditch body, water inlet is successively through the first ditch end place to the four ditches, the 3rd ditch, the second ditch is again to the first ditch section start and circulate and realize sewage disposal, the first ditch section start is provided with water outlet.
In the utility model, set up anaerobic pond in the first ditch outside, then introduced sludge return pipe, in anaerobic pond, can carry out in advance anaerobic reaction like this, greatly improved phosphor-removing effect.In anaerobic pond, be separated to form pre-anoxic section and anaerobism section, can guarantee better the production of anaerobic reaction, guarantee the raising of phosphor-removing effect.
As optimization, described the first ditch section start water outlet is outside equipped with the dephosphorization agent being connected with second pond and adds pond, and described dephosphorization agent adds pond and the first ditch and anaerobic pond mutually by arranging.
After optimizing like this, can be by adding the mode of dephosphorization agent, further improve water outlet phosphor-removing effect, simultaneously, dephosphorization agent adds pond and is positioned at outside the first ditch section start water outlet, after dephosphorization agent adds like this, flow in the process of second pond can with the abundant hybrid reaction of current, the throw out generating, entering under second pond postprecipitation, is guaranteed phosphor-removing effect.Dephosphorization agent adds pond and the first ditch and anaerobic pond mutually by arranging, and shares like this two sides pool wall, has saved pond body setup cost.
As further optimization, in described anaerobic pond, in anaerobism section, be also provided with an ORP meter.
Like this, can count the redox potential value detecting in anaerobism section by ORP, dephosphorization response situation in judgement and grasp anaerobic pond, if exceed normal range, can regulate reflux ratio by sludge reflux pump, realize the regulation and control except phosphorus reaction, guarantee that phosphor-removing effect is good.When concrete enforcement, judgement except phosphorus reaction whether normal redox potential determination range value can obtain according to specific experiment experience at ordinary times, generally can be between-500 ~-300mV, if lower than this scope, improve return sludge ratio by the sludge reflux amount of controlling sludge return pipe, if higher than this scope, reduce return sludge ratio by the sludge reflux amount of controlling sludge return pipe, the redox potential in anaerobic pond is remained between-500 ~-300mV; Can guarantee phosphor-removing effect.
In addition, as optimization, in described oxidation ditch body, near being also provided with in the aerobic section of water outlet, the 2nd ORP counts, DO counts and ammonia nitrogen detecting sensor.
Like this, can detect in real time redox potential value, DO value and the ammonia nitrogen value in oxidation ditch body aerobic section by the 2nd ORP meter, DO meter and ammonia nitrogen detecting sensor simultaneously, judge by redox potential value wherein whether reaction is normally carried out and regulate and control.Specifically, whether the redox potential value that can relatively judge detection falls in normal range, if do not fall into normal range, can regulate and control aeration rate by aerator, change reaction tank aerobic section DO value and adjust reaction, make the redox potential value detecting drop into normal range, this value range obtains according to specific experiment experience, is generally between 100 ~ 150mV.Ammonia nitrogen detecting sensor also can, for detecting in real time ammonia nitrogen value, to react effluent quality situation, be beneficial to and realize interlock regulation and control.The sensor arranging is positioned at the aerobic section near water outlet, can guarantee that detected result reacts effluent quality situation better, improves regulation and control accuracy.
Like this, in the utility model, the ORP of two Position Design meter, can detect corresponding redox potential value; Can realize based on ORP interlock control technique, having solved reservoir area Sewage Plant exists and does not mate with oxygen-supplying amount with system oxygen requirement in the single index regulation and control of DO, the problems such as the higher and power consumption of the TN being caused by nitrate-N accumulation, TP under high temperature season operation is higher, and there is sludge bulking and the problem such as water outlet ammonia nitrogen is higher in low temperature season operation, be that reservoir area oxidation ditch process sewage effluents water quality further improves and the energy-saving and cost-reducing technical support that provides.It has can realize regulation and control better, guarantees that effluent quality is more stable, avoids the advantages such as energy dissipation, realizes the continual and steady up to standard and energy-saving and cost-reducing effect of water outlet.
In sum, the utlity model has simple in structurely, be beneficial to enforcement, the advantage such as phosphor-removing effect is good, is beneficial to regulation and control, and effluent quality is more stable.
Accompanying drawing explanation
Fig. 1 is the structural representation of the circulating baffling oxidation ditch of the utility model employing.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of circulating baffling oxidation ditch, comprise the oxidation ditch body 1 being formed by tactic the first ditch, the second ditch, the 3rd ditch and the 4th ditch, article four, ditch head and the tail are connected successively and make sewage be circulating baffling therein to flow, be provided with aerator 6 and make aerator 6 fronts form aerobic sections in oxidation ditch body 1, described the first ditch outside is set side by side with an anaerobic pond, in described anaerobic pond, be separated by and be formed with pre-anoxic section 11 and anaerobism section 2, pre-anoxic section 11 places and anaerobism section 2 are communicated with setting and pre-anoxic section 11 has water-in, described anaerobism section 2 is provided with the first ditch afterbody and is communicated with the inlet channel 4 arranging away from pre-anoxic section 11 one end, on described anaerobic pond, be also communicated with and be provided with the sludge return pipe 3 being connected with sludge reflux pump house, described sludge return pipe 3 is communicated to respectively in pre-anoxic section 11 and anaerobism section 2, the interior water inlet of oxidation ditch body 1 is successively through the first ditch end place to the four ditches, the 3rd ditch, the second ditch is again to the first ditch section start and circulate and realize sewage disposal (in figure, arrow represents water (flow) direction), the first ditch section start is provided with water outlet.Described the first ditch section start water outlet is outside equipped with the dephosphorization agent being connected with second pond and adds pond 10, and described dephosphorization agent adds pond 10 and the first ditch and anaerobic pond mutually by arranging.In described anaerobic pond, in anaerobism section 2, be also provided with an ORP meter 8.In described oxidation ditch body, in the close aerobic section of water outlet, be also provided with the 2nd ORP meter 9, DO meter 7 and ammonia nitrogen detecting sensor 5.
When concrete enforcement, sludge concentration meter can also be further set in anaerobic pond, improve the monitoring to sludge return pipe sludge reflux effect, guarantee better the carrying out of the anaerobic reaction in it, improve phosphor-removing effect.When concrete enforcement, guarantee oxidizing reaction in order to improve aeration effect, described aerator is set to three, lay respectively at the 4th ditch to the three ditch turning points, the 3rd ditch to the second ditch turning point and second to the first ditch turning point.
The utility model not only phosphor-removing effect is good, and can realize based on ORP interlock control technique, having solved reservoir area Sewage Plant exists and does not mate with oxygen-supplying amount with system oxygen requirement in the single index regulation and control of DO, the problems such as the higher and power consumption of the TN being caused by nitrate-N accumulation, TP under high temperature season operation is higher, and there is sludge bulking and the problem such as water outlet ammonia nitrogen is higher in low temperature season operation, be that reservoir area oxidation ditch process sewage effluents water quality further improves and the energy-saving and cost-reducing technical support that provides.It has can realize regulation and control better, guarantees that effluent quality is more stable, avoids the advantages such as energy dissipation, realizes the continual and steady up to standard and energy-saving and cost-reducing effect of water outlet.
Claims (4)
1. a circulating baffling oxidation ditch, comprise the oxidation ditch body being formed by tactic the first ditch, the second ditch, the 3rd ditch and the 4th ditch, article four, ditch head and the tail are connected successively and make sewage be circulating baffling therein to flow, be provided with aerator and make aerator front form aerobic section in oxidation ditch body, it is characterized in that, described the first ditch outside is set side by side with an anaerobic pond, in described anaerobic pond, be separated by and be formed with pre-anoxic section and anaerobism section, pre-anoxic section place and anaerobism section are communicated with setting and pre-anoxic section has water-in, described anaerobism section is provided with the first ditch afterbody and is communicated with the inlet channel arranging away from pre-anoxic section one end, on described anaerobic pond, be also communicated with and be provided with the sludge return pipe being connected with sludge reflux pump house, described sludge return pipe is communicated to respectively in pre-anoxic section and anaerobism section, in oxidation ditch body, water inlet is successively through the first ditch end place to the four ditches, the 3rd ditch, the second ditch is again to the first ditch section start and circulate and realize sewage disposal, the first ditch section start is provided with water outlet.
2. circulating baffling oxidation ditch as claimed in claim 1, is characterized in that, described the first ditch section start water outlet is outside equipped with the dephosphorization agent being connected with second pond and adds pond, and described dephosphorization agent adds pond and the first ditch and anaerobic pond mutually by arranging.
3. circulating baffling oxidation ditch as claimed in claim 1, is characterized in that, is also provided with an ORP meter in described anaerobic pond in anaerobism section.
4. the circulating baffling oxidation ditch as described in claim 1 or 3, is characterized in that, in described oxidation ditch body, near being also provided with in the aerobic section of water outlet, the 2nd ORP counts, DO counts and ammonia nitrogen detecting sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420042796.2U CN203668119U (en) | 2014-01-23 | 2014-01-23 | Circulating turn-back flow oxidation ditch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420042796.2U CN203668119U (en) | 2014-01-23 | 2014-01-23 | Circulating turn-back flow oxidation ditch |
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| Publication Number | Publication Date |
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| CN203668119U true CN203668119U (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420042796.2U Expired - Fee Related CN203668119U (en) | 2014-01-23 | 2014-01-23 | Circulating turn-back flow oxidation ditch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105668785A (en) * | 2014-11-17 | 2016-06-15 | 成都安捷宜康环保科技有限公司 | Treatment method for municipal sewage through filling material and oxidation ditch combined process |
-
2014
- 2014-01-23 CN CN201420042796.2U patent/CN203668119U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105668785A (en) * | 2014-11-17 | 2016-06-15 | 成都安捷宜康环保科技有限公司 | Treatment method for municipal sewage through filling material and oxidation ditch combined process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20150123 |
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| EXPY | Termination of patent right or utility model |