CN204079729U - A kind of percolate outer circulation anaerobic reaction system - Google Patents
A kind of percolate outer circulation anaerobic reaction system Download PDFInfo
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- CN204079729U CN204079729U CN201420611562.5U CN201420611562U CN204079729U CN 204079729 U CN204079729 U CN 204079729U CN 201420611562 U CN201420611562 U CN 201420611562U CN 204079729 U CN204079729 U CN 204079729U
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Abstract
The utility model relates to a kind of percolate outer circulation anaerobic reaction system, comprise pretreatment pool, spiral pump, well heater, anaerobic reactor and nitrated/denilrification system, pretreatment pool, spiral pump is connected successively with well heater, it is characterized in that, also comprise the COD on-line monitoring equipment of liquor C OD concentration in circulating water pool and detection circulating water pool, circulating water pool is provided with the first pipeline, second pipe, 3rd pipeline, 4th pipeline and the 5th pipeline, first pipeline is connected with well heater, second pipe is connected with nitrated/denilrification system with the 3rd pipeline, 4th pipeline is connected with anaerobic reactor with the 5th pipeline, first pipeline is provided with the first control valve, and second pipe is provided with the second control valve, and the 3rd pipeline is provided with the 3rd control valve, and the 4th pipeline is provided with the 4th control valve, and the 5th pipeline is provided with the 5th control valve.The utility model achieves repeatedly circulation anaerobic reaction, significantly improves the efficiency of anaerobic digestion percolate.
Description
Technical field
The utility model relates to field of garbage disposal, more particularly, relates to a kind of percolate outer circulation anaerobic reaction system.
Background technology
---heating---anaerobic reaction---follow-up flow process (as nitrated/denilrification system) that usual municipal garbage percolate anaerobic digestion reaction process is: pre-treatment.Percolate after heater via heating directly will enter anaerobic reactor, and the filtrate after anaerobic treatment flows directly into again follow-up flow process.When percolate organic pollutant content is high, after this system anaerobic reaction, in its effluent quality, organic content is still difficult to be down to desirable level, and COD concentration is still higher.On the other hand, the percolate after heater heats directly enters anaerobic reactor, temperature in reactor can be caused to be difficult to regulate, and fluctuation is larger.The methanobacteria played a crucial role in anaerobic reactor, to temperature sensitive.Usually in, the existence adaptive temperature of warm methanobacteria is 30-36 DEG C, exceed this scope, or temperature fluctuation all can cause organic acid to accumulate in a large number comparatively greatly, suppresses the activity of anaerobion or causes their death.
Summary of the invention
The technical problems to be solved in the utility model is, provides a kind of percolate outer circulation anaerobic reaction system, can improve anaerobic reaction efficiency, stablize anaerobic reaction temperature, reduces COD concentration in anaerobic reaction water outlet.
The utility model solves the technical scheme that its technical problem adopts: construct a kind of percolate outer circulation anaerobic reaction system, comprise pretreatment pool, spiral pump, well heater, anaerobic reactor and nitrated/denilrification system, described pretreatment pool, spiral pump is connected successively with well heater, also comprise the COD on-line monitoring equipment of liquor C OD concentration in circulating water pool and the described circulating water pool of detection, described circulating water pool is provided with the first pipeline, second pipe, 3rd pipeline, 4th pipeline and the 5th pipeline, first pipeline is connected with described well heater, second pipe is nitrated with described with the 3rd pipeline/and denilrification system is connected, 4th pipeline is connected with described anaerobic reactor with the 5th pipeline, described first pipeline is provided with the first control valve, and described second pipe is provided with the second control valve, and described 3rd pipeline is provided with the 3rd control valve, and described 4th pipeline is provided with the 4th control valve, and described 5th pipeline is provided with the 5th control valve.
In such scheme, outer circulation anaerobic reaction system also comprises valve control system, the opening and closing of described valve control system the first control valve, the second control valve, the 3rd control valve, the 4th control valve and the 5th control valve according to the detection Data Control of COD on-line monitoring equipment and open amplitude.
In such scheme, described anaerobic reactor is also provided with temperature-detecting device, described temperature-detecting device is connected with described valve control system, the opening and closing of described valve control system the first control valve, the second control valve, the 3rd control valve, the 4th control valve and the 5th control valve according to the detection Data Control of described temperature-detecting device and open amplitude.
In such scheme, described first pipeline, second pipe, the 3rd pipeline, the 4th pipeline, the 5th pipeline are equipped with under meter, and described under meter is connected with described valve control system, is regulated the uninterrupted of each pipeline by described valve control system.
In such scheme, bottom described circulating water pool, be provided with the submersible pump with COD on-line monitoring equipment connection.
The utility model additionally provides a kind of percolate outer circulation anaerobic reaction method, comprises the following steps:
S1, assemble above-mentioned outer circulation anaerobic reaction system;
S2, open the first control valve and the 4th control valve, close the second control valve and the 3rd control valve, filtrate in pretreatment pool is delivered to heater heats by spiral pump, circulating water pool is flowed into by the first pipeline, then anaerobic reactor is flowed into by the 4th pipeline, after for some time, close the first control valve; Filtrate is repeatedly flowed between circulating water pool and anaerobic reactor, until the COD concentration of COD on-line monitoring equipment Inspection is down to set(ting)value;
S3, open the 3rd control valve, the filtrate in circulating water pool enters nitrated/denilrification system.
In such scheme, in described step S2, open the second control valve, the liquid in nitrated/denilrification system is back to circulating water pool by second pipe, the COD concentration in dilution circulating water pool, then carries out anaerobic reaction by the 4th pipeline inflow anaerobic reactor.
In such scheme, when temperature in anaerobic reactor is lower than set(ting)value, increase the first pipeline flow, the water purification amount that filtrate after heating injects circulating water pool increases, in pond, water temperature rises, by regulating the relative size of the 4th control valve and the 5th control valve, increasing the water purification amount flowing into anaerobic reactor from circulating water pool, and then making temperature in anaerobic reactor rise to set(ting)value; When temperature in anaerobic reactor is higher than set(ting)value, increase second pipe flow, liquid return in nitrated/denilrification system increases to the water purification amount of circulating water pool, in pond, water temperature reduces, regulate the relative size of the 4th control valve and the 5th control valve, increase the water purification amount flowing into anaerobic reactor from circulating water pool, in reduction anaerobic reactor, temperature is in setting range.
Implement percolate outer circulation anaerobic reaction system of the present utility model, there is following beneficial effect:
1, by setting up circular buffering pond between well heater and anaerobic reactor, the percolate of COD very high concentrations can be circulated and carry out anaerobic reaction, until effluent COD concentration is down to desirable level.
2, when anaerobic reaction efficiency is certain, by the backflow of COD concentration liquids low in follow-up flow process, COD in diluting reactor water inlet, and then reach the object reducing effluent COD concentration.
3, achieve repeatedly circulation anaerobic reaction, significantly improve the efficiency of anaerobic digestion percolate.
4, due to the existence in buffer cycles pond, more sensitive to the adjustment of anaerobic reactor inflow temperature.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of the utility model percolate outer circulation anaerobic reaction system.
Embodiment
In order to there be understanding clearly to technical characteristic of the present utility model, object and effect, now contrast accompanying drawing and describe embodiment of the present utility model in detail.
As shown in Figure 1, pretreatment pool 1, spiral pump 2, well heater 3, anaerobic reactor 7, nitrated/denilrification system 4, circulating water pool 5 and COD on-line monitoring equipment 8 is comprised in percolate outer circulation anaerobic reaction system of the present utility model.
Pretreatment pool 1, spiral pump 2 are connected successively with well heater 3.The Main Function of pretreatment pool 1 is precipitation, regulates filtrate PH, preaeration stripping to remove the materials such as H2S.Filtrate in pretreatment pool 1 is sent in well heater 3 by spiral pump 2.
Circulating water pool 5 is provided with the first pipeline 601, second pipe 602, the 3rd pipeline 603, the 4th pipeline 604 and the 5th pipeline 605, and circulating water pool 5 is connected with well heater 3, nitrated/denilrification system 4 and anaerobic reactor 7 respectively.First pipeline 601 is connected with well heater 3, and second pipe 602 is connected with nitrated/denilrification system 4 with the 3rd pipeline 603, and the 4th pipeline 604 is connected with anaerobic reactor 7 with the 5th pipeline 605.First pipeline 601 is provided with the first control valve 606, and second pipe 602 is provided with the second control valve the 607, three pipeline 603 and is provided with the 3rd control valve the 608, four pipeline 604 and is provided with the 4th control valve the 609, five pipeline 605 and is provided with the 5th control valve 610.
COD on-line monitoring equipment 8, for detecting liquor C OD concentration in circulating water pool 5, is provided with the submersible pump 6 be connected with COD on-line monitoring equipment 8, is sampled by submersible pump 6 bottom circulating water pool 5.
Further, outer circulation anaerobic reaction system also comprises valve control system 9, and valve control system 9 is according to the opening and closing of detection Data Control first control valve 606, second control valve 607 of COD on-line monitoring equipment 8, the 3rd control valve 608, the 4th control valve 609 and the 5th control valve 610 and open amplitude.
Further, anaerobic reactor 7 is also provided with temperature-detecting device, temperature-detecting device is connected with valve control system 9, and valve control system 9 is according to the opening and closing of detection Data Control first control valve 606, second control valve 607 of temperature-detecting device, the 3rd control valve 608, the 4th control valve 609 and the 5th control valve 610 and open amplitude.
Further, the first pipeline 601, second pipe 602, the 3rd pipeline 603, the 4th pipeline 604, the 5th pipeline 605 are equipped with under meter, and under meter is connected with valve control system 9, is regulated the uninterrupted of each pipeline by valve control system 9.
The utility model system sets up circulating water pool 5 between well heater 3 and anaerobic reactor 7, namely to percolate repeatedly circulation anaerobic, anaerobic reaction efficiency can be improved, reduce COD concentration in anaerobic reaction water outlet, can cushion and regulate anaerobic reaction inflow temperature again, reduce temperature fluctuation.The detected result immediate feedback of COD on-line monitoring equipment 8 to valve control system 9, valve control system 9 according to detected result, each control valve switch around controlled circulation pond 5.By regulating each control valve, percolate after heating can circulate and enter anaerobic reactor 7, until COD is down to desirable level in effluent quality, be discharged into again follow-up nitrated/denilrification system 4, and the liquid that in nitrated/denilrification system 4, organic content is lower, also can be back to circulating water pool 5, the COD content in dilution pond, then enter anaerobic reactor 7.Like this, in water inlet, COD concentration reduces, and the COD concentration of water outlet also must reduce.
When in anaerobic reactor 7, temperature is lower, increase the water purification amount of the percolate injecting reactor after heating, to improve reactor temperature, and when in anaerobic reactor 7, temperature is higher, increase the backflow water yield from nitrated/denilrification system 4, reduce water temperature in circulating water pool 5, and then reduce anaerobic reactor 7 inflow temperature.
The utility model additionally provides a kind of percolate outer circulation anaerobic reaction method, comprises the following steps:
Outer circulation anaerobic reaction system in S1, assembling claim 1;
S2, open the first control valve 606 and the 4th control valve 609, close the second control valve 607 and the 3rd control valve 608, filtrate in pretreatment pool 1 is delivered to well heater 3 by spiral pump 2 and heats, circulating water pool 5 is flowed into by the first pipeline 601, then anaerobic reactor 7 is flowed into by the 4th pipeline 604, after for some time, close the first control valve 606; Filtrate is repeatedly flowed between circulating water pool 5 and anaerobic reactor 7, until the COD concentration that COD on-line monitoring equipment 8 detects is down to set(ting)value, reaches emission standard;
S3, open the 3rd control valve 608, the filtrate in circulating water pool 5 enters nitrated/denilrification system 4.
Further, in step s 2, can open the second control valve 607, the liquid in nitrated/denilrification system 4 is back to circulating water pool 5 by second pipe 602, COD concentration in dilution circulating water pool 5, then flow into anaerobic reactor 7 by the 4th pipeline 604 and carry out anaerobic reaction.
Further, when in anaerobic reactor 7, temperature is lower than set(ting)value, increase the first pipeline 601 flow, the water purification amount that filtrate after heating injects circulating water pool 5 increases, in pond, water temperature rises, by regulating the relative size of the 4th control valve 609 and the 5th control valve 610, increase the water purification amount flowing into anaerobic reactor 7 from circulating water pool 5, and then make temperature in anaerobic reactor 7 rise to set(ting)value; When in anaerobic reactor 7, temperature is higher than set(ting)value, increase second pipe 602 flow, liquid return in nitrated/denilrification system 4 increases to the water purification amount of circulating water pool 5, in pond, water temperature reduces, regulate the relative size of the 4th control valve 609 and the 5th control valve 610, increase the water purification amount flowing into anaerobic reactor 7 from circulating water pool 5, in reduction anaerobic reactor 7, temperature is in setting range.The utility model can control temperature in anaerobic reactor 7 in setting range, and in the anaerobic reactor 7 in the present embodiment, the existence adaptive temperature of warm methanobacteria is 30-36 DEG C, and corresponding temperature value setting range is also 30-36 DEG C.
The utility model mainly proposes percolate outer circulation anaerobic reaction system for the percolate of chemical oxygen demand (COD) (COD) very high concentrations within the scope of 50000 ~ 75000mg/L, percolate not in this concentration range, also can adopt this system and method.The cycle index of high density is many, and the cycle index of lower concentration is few.By setting up circular buffering pond between well heater 3 and anaerobic reactor 7, the percolate of COD very high concentrations can be circulated and carry out anaerobic reaction, until effluent COD concentration is down to desirable level.When anaerobic reaction efficiency is certain, by the backflow of COD concentration liquids low in follow-up flow process, COD in diluting reactor water inlet, and then reach the object reducing effluent COD concentration.Achieve repeatedly circulation anaerobic reaction, significantly improve the efficiency of anaerobic digestion percolate.Due to the existence in buffer cycles pond 5, can stablize and regulate temperature in anaerobic reactor 7 delicately, reducing temperature fluctuation to the negative impact of anaerobic reaction.
By reference to the accompanying drawings embodiment of the present utility model is described above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; do not departing under the ambit that the utility model aim and claim protect, also can make a lot of form, these all belong within protection of the present utility model.
Claims (5)
1. a percolate outer circulation anaerobic reaction system, comprise pretreatment pool, spiral pump, well heater, anaerobic reactor and nitrated/denilrification system, described pretreatment pool, spiral pump is connected successively with well heater, it is characterized in that, also comprise the COD on-line monitoring equipment of liquor C OD concentration in circulating water pool and the described circulating water pool of detection, described circulating water pool is provided with the first pipeline, second pipe, 3rd pipeline, 4th pipeline and the 5th pipeline, first pipeline is connected with described well heater, second pipe is nitrated with described with the 3rd pipeline/and denilrification system is connected, 4th pipeline is connected with described anaerobic reactor with the 5th pipeline, described first pipeline is provided with the first control valve, and described second pipe is provided with the second control valve, and described 3rd pipeline is provided with the 3rd control valve, and described 4th pipeline is provided with the 4th control valve, and described 5th pipeline is provided with the 5th control valve.
2. percolate outer circulation anaerobic reaction system according to claim 1, it is characterized in that, outer circulation anaerobic reaction system also comprises valve control system, and described valve control system regulates the opening and closing of described first control valve, the second control valve, the 3rd control valve, the 4th control valve and the 5th control valve according to the detection data of COD on-line monitoring equipment and opens amplitude.
3. percolate outer circulation anaerobic reaction system according to claim 2, it is characterized in that, described anaerobic reactor is also provided with temperature-detecting device, described temperature-detecting device is connected with described valve control system, the opening and closing of described valve control system the first control valve, the second control valve, the 3rd control valve, the 4th control valve and the 5th control valve according to the detection Data Control of described temperature-detecting device and open amplitude.
4. percolate outer circulation anaerobic reaction system according to claim 2, it is characterized in that, described first pipeline, second pipe, the 3rd pipeline, the 4th pipeline, the 5th pipeline are equipped with under meter, described under meter is connected with described valve control system, is regulated the uninterrupted of each pipeline by described valve control system.
5. percolate outer circulation anaerobic reaction system according to claim 1, is characterized in that, be provided with the submersible pump with COD on-line monitoring equipment connection bottom described circulating water pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201420611562.5U CN204079729U (en) | 2014-10-21 | 2014-10-21 | A kind of percolate outer circulation anaerobic reaction system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420611562.5U CN204079729U (en) | 2014-10-21 | 2014-10-21 | A kind of percolate outer circulation anaerobic reaction system |
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| CN204079729U true CN204079729U (en) | 2015-01-07 |
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| CN201420611562.5U Withdrawn - After Issue CN204079729U (en) | 2014-10-21 | 2014-10-21 | A kind of percolate outer circulation anaerobic reaction system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104261638A (en) * | 2014-10-21 | 2015-01-07 | 华新水泥股份有限公司 | Outer circulation anaerobic reaction system and outer circulation anaerobic reaction method for landfill leachate |
-
2014
- 2014-10-21 CN CN201420611562.5U patent/CN204079729U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104261638A (en) * | 2014-10-21 | 2015-01-07 | 华新水泥股份有限公司 | Outer circulation anaerobic reaction system and outer circulation anaerobic reaction method for landfill leachate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150107 Effective date of abandoning: 20160907 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |