CN202449956U - Sewage treatment equipment of subsidiary facility of expressway promoting COD (Chemical Oxygen Demand) to discharge with standard level - Google Patents
Sewage treatment equipment of subsidiary facility of expressway promoting COD (Chemical Oxygen Demand) to discharge with standard level Download PDFInfo
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- CN202449956U CN202449956U CN 201120545415 CN201120545415U CN202449956U CN 202449956 U CN202449956 U CN 202449956U CN 201120545415 CN201120545415 CN 201120545415 CN 201120545415 U CN201120545415 U CN 201120545415U CN 202449956 U CN202449956 U CN 202449956U
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Abstract
The utility model relates to sewage treatment equipment of a subsidiary facility of an expressway promoting COD (Chemical Oxygen Demand) to discharge with a standard level. Sewage treatment scale of the subsidiary facility of the expressway is designed normally according to a predetermined volume of traffic in a design document, but actually within several years after traffic is opened, the predetermined volume of traffic cannot reached fundamentally, thus, the model of the equipment selected and used is oversize and the sewage treatment effect is poor. The sewage treatment equipment of the subsidiary facility of the expressway promoting COD to discharge with the standard level provided by the utility model is provided with an oil separator, a grating, an adjusting pool, a biological contact oxidation pond, a secondary sedimentation tank and a disinfecting pool connected with each other through a sewer pipe. The secondary sedimentation tank is connected with a sludge tank, a COD online monitor is arranged at a water outlet of the disinfecting pool, and the secondary sedimentation tank is provided with a sewage pump which is connected with the adjusting pool through a backflow sewer pipe. The sewage treatment equipment of the subsidiary facility of the expressway promoting COD to discharge with the standard level provided by the utility model reduces the sewage treatment cost greatly, relieves the contradiction that the equipment is smaller in water quantity in an initial operating stage of the expressway but increased in water quantity in middle and later stages, judges whether effluent COD meets the standard or not online, and performs backflow retreatment to discharge with the standard level.
Description
Technical field
The utility model relates to a kind of sewage disposal device, is specifically related to a kind of motorway affiliated facility sewage disposal device of the COD of promotion qualified discharge.
Background technology
At present, domestic more buried integrated sewage treating apparatus is made up of preliminary sedimentation tank, equalizing tank, A level biological tank, O level biological tank, second pond, sludge sump and sterilization pool.Sewage is at first removed bigger PM for particulate matter through preliminary sedimentation tank, and the back gets into equalizing tank and carries out the water quality and quantity adjusting, wherein establishes sump pump in the equalizing tank; Sewage is promoted to A level biological tank, O level biological tank in the integrated apparatus; Sewage is accomplished main organic matter removal task through the gas blower aeration in these two ponds, the back gets into second pond, in this mud-water separation; Supernatant effluxes after flowing into the sterilization pool sterilization, and the sludge part that precipitates is back to equalizing tank and participates in work of treatment again.General sewage disposal device type selecting does not often match with the actual sewage amount utmost point, and aeration is 24 hour operation in 24 hours then, causes running cost higher, and the water outlet ammonia nitrogen removal frank is not high, and can't judge that can water outlet reach corresponding emission standard.
Motorway affiliated facility WWT scale generally designs according to the prognosis traffic volume in the design document, but practical situation are just to be open to traffic to reach the volume of traffic of expectation in several years at all, and this has just caused equipment choosing model present situation bigger than normal.So, be open to traffic the back water yield and the lectotype selection utmost point do not match, and cause wastewater treatment efficiency not good, even can not be up to standard.And the most COD removal effect of buried sewage treatment equipment on the home market is bad at present.
Summary of the invention
The purpose of the utility model provides a kind ofly to be alleviated contradiction that less and middle and later periods of initial operating stage water yield water yield increases, can onlinely judge the whether motorway affiliated facility sewage disposal device of the promotion COD qualified discharge that refluxes or discharge up to standard of water outlet COD.
The technical scheme that the utility model adopted is:
Promote the motorway affiliated facility sewage disposal device of COD qualified discharge; Be disposed with the grid, equalizing tank, biological contact oxidation pond, second pond and the sterilization pool that are connected through waste pipe; Second pond is connected with sludge sump through sludge pipe, it is characterized in that:
The water outlet of described sterilization pool is provided with COD on-line monitoring appearance;
In the described second pond sump pump is set, sump pump is connected with equalizing tank through the backflow waste pipe.
Be provided with submersible pump in the described equalizing tank sewage is promoted to biological contact oxidation pond.
Be provided with aeration tube in described equalizing tank, biological contact oxidation pond and the sludge sump, be connected with blower fan on the aeration tube.
The upper reaches of described grid are provided with oil trap, and grid is connected through waste pipe with oil trap.
Described sludge sump is provided with mud return line, and mud return line is connected with biological contact oxidation pond.
The utlity model has following advantage:
The utility model can significantly reduce WWT running cost; The contradiction that alleviation equipment is less in the motorway initial operating stage water yield, the middle and later periods water yield increases effectively improves wastewater treatment efficiency, and can onlinely judge whether water outlet COD is up to standard; Reflux and handle again, accomplish qualified discharge.
Description of drawings
Fig. 1 is the utility model composition diagram.
Among the figure, 1-oil trap, 2-grid, 3-equalizing tank, 4-biological contact oxidation pond, 5-second pond, 6-sludge sump, 7-sterilization pool, 8-COD on-line monitoring appearance, 9-blower fan, 10-submersible pump, 11-waste pipe, 12-aeration tube, 13-sludge pipe.
Embodiment
Below in conjunction with embodiment the utility model is carried out detailed explanation.
The motorway affiliated facility sewage disposal device of the described promotion of the utility model COD qualified discharge; Be disposed with the oil trap 1, grid 2, equalizing tank 3, biological contact oxidation pond 4, second pond 5 and the sterilization pool 7 that are connected through waste pipe 11, second pond 5 is connected with sludge sump 6 through sludge pipe 13.The water outlet of sterilization pool 7 is provided with COD on-line monitoring appearance 8, in the second pond 5 sump pump is set, and sump pump is connected with equalizing tank 3 through backflow waste pipe 11.Be provided with submersible pump 10 in the equalizing tank 3 sewage is promoted to biological contact oxidation pond 4.Be provided with aeration tube 12 in equalizing tank 3, biological contact oxidation pond 4 and the sludge sump 6, be connected with blower fan 9 on the aeration tube 12.Sludge sump 6 is provided with mud return line 13, and mud return line 13 is connected with biological contact oxidation pond 4.
Sewage gets into oil trap 1 through waste pipe 11; Vegetable and animals oils in the removal motorway affiliated facility sewage and the petroleum-type in the carwash sewage etc.; Remove back entering equalizing tanks 3 such as larger particles and hair through grid 2, carry out the adjusting of water quality, the water yield at this, the back is promoted to integrated apparatus by submersible pump 10---biological contact oxidation pond 4; Sewage is degraded in this pond and is removed the organic pollution materials of the overwhelming majority; Afterwards from flowing to second pond 5, carry out after the mud-water separation supernatant and drain into sterilization pool 7 and carry out disinfection, the mud that precipitates gets into sludge sump 6 and handles; Mud part after the processing is back to biological contact oxidation pond through sludge pipe 13, part discharging.The water outlet of post precipitation replenishes water inlet in the less situation refluxed of affiliated facility water displacement in early stage, has so promptly solved the problem of the initial stage water shortage that is open to traffic, and has also improved the COD clearance of equipment; Under the bigger situation of the water yield, flow to COD on-line monitoring appearance 8 and carry out monitoring water quality on line and judgement; When the then discharging all up to standard of COD index, not up to standard like the COD index, promptly the COD clearance is not high; Explain that the biological treatment time is not enough; Need to reflux and carry out a biological disposal upon once more,, be back to equalizing tank 3 and handle again for increasing the reaction times.
In addition, the system of the utility model is accomplished by PLC automatic control cabinet.When the submersible pump in the equalizing tank 3 10 was opened, the sump pump in the second pond cut out, and when the submersible pump in the equalizing tank 3 10 cut out, the sump pump in the second pond started operation, and closed automatically when moving to low-water level; Perhaps to the water yield low ebb that possibly occur, such as 0-7 point in morning, the morning 9-11 point, afternoon 13-17 point, afternoon 19-21 point and five periods of 23-24 point night reflux, and the low-water level termination of pumping is set.The automatic control cabinet is provided with manually and automatic two kinds of situation, wherein mainly is control water inlet and aeration under the automatic condition.Existing submersible sewage pump adopts automatic liquid level control, promptly opens or close intake pump according to the height of water level, and blower fan then is operation continuously in 24 hours basically.
Under the very little situation of the water yield, liquid level starts and possibly all can not start once in several days, has so just caused the waste of aeration; And under the situation of not having water inlet; Microbial film in the treatment facility is easy to wear out, even comes off, and continues aeration in this case; Increased flow turbulence, quickened biomembranous aging and come off.Therefore; Aeration and water inlet control are carried out related, be i.e. started aeration in the time of water inlet, perhaps to the water yield peak that possibly occur; Carry out continuous aeration such as morning 7-9 point, noon 11-13 point, afternoon 17-19 point and four periods of 21-23 point night; Be aeration 8 hours every day, be 1/3rd of original aeration time, practice thrift 2/3rds running cost.
Claims (5)
1. promote the motorway affiliated facility sewage disposal device of COD qualified discharge; Be disposed with the grid (2), equalizing tank (3), biological contact oxidation pond (4), second pond (5) and the sterilization pool (7) that are connected through waste pipe (11); Second pond (5) is connected with sludge sump (6) through sludge pipe (13), it is characterized in that:
The water outlet of described sterilization pool (7) is provided with COD on-line monitoring appearance (8);
Described second pond is provided with sump pump in (5), and sump pump is connected with equalizing tank (3) through backflow waste pipe (11).
2. the motorway affiliated facility sewage disposal device of promotion COD qualified discharge according to claim 1 is characterized in that:
Be provided with submersible pump (10) in the described equalizing tank (3) sewage is promoted to biological contact oxidation pond (4).
3. the motorway affiliated facility sewage disposal device of promotion COD qualified discharge according to claim 1 and 2 is characterized in that:
Be provided with aeration tube (12) in described equalizing tank (3), biological contact oxidation pond (4) and the sludge sump (6), be connected with blower fan (9) on the aeration tube (12).
4. the motorway affiliated facility sewage disposal device of promotion COD qualified discharge according to claim 3 is characterized in that:
The upper reaches of described grid (2) are provided with oil trap (1), and grid (2) is connected through waste pipe (11) with oil trap (1).
5. the motorway affiliated facility sewage disposal device of promotion COD qualified discharge according to claim 4 is characterized in that:
Described sludge sump (6) is provided with mud return line (13), and mud return line (13) is connected with biological contact oxidation pond (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120545415 CN202449956U (en) | 2011-12-23 | 2011-12-23 | Sewage treatment equipment of subsidiary facility of expressway promoting COD (Chemical Oxygen Demand) to discharge with standard level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120545415 CN202449956U (en) | 2011-12-23 | 2011-12-23 | Sewage treatment equipment of subsidiary facility of expressway promoting COD (Chemical Oxygen Demand) to discharge with standard level |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202449956U true CN202449956U (en) | 2012-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120545415 Expired - Fee Related CN202449956U (en) | 2011-12-23 | 2011-12-23 | Sewage treatment equipment of subsidiary facility of expressway promoting COD (Chemical Oxygen Demand) to discharge with standard level |
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| Country | Link |
|---|---|
| CN (1) | CN202449956U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111499109A (en) * | 2020-04-29 | 2020-08-07 | 浙江佳人新材料有限公司 | Chemical fiber sewage treatment process |
-
2011
- 2011-12-23 CN CN 201120545415 patent/CN202449956U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111499109A (en) * | 2020-04-29 | 2020-08-07 | 浙江佳人新材料有限公司 | Chemical fiber sewage treatment process |
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| 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: 20120926 Termination date: 20201223 |
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| CF01 | Termination of patent right due to non-payment of annual fee |