CN204058176U - A kind of waste disposal plant - Google Patents
A kind of waste disposal plant Download PDFInfo
- Publication number
- CN204058176U CN204058176U CN201420390745.9U CN201420390745U CN204058176U CN 204058176 U CN204058176 U CN 204058176U CN 201420390745 U CN201420390745 U CN 201420390745U CN 204058176 U CN204058176 U CN 204058176U
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- Prior art keywords
- cylindrical shell
- central compartment
- waste disposal
- disposal plant
- gac
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Abstract
The utility model proposes a kind of waste disposal plant, comprise cylindrical shell and be positioned at the central compartment cylindrical shell in the middle part of described cylindrical shell, described central compartment cylindrical shell both ends open, described cylinder body bottom connects aeration tube and water inlet pipe, and described cylindrical shell is also provided with effluent weir; Described cylindrical shell and central compartment cylindrical shell are provided with the positive electrode and negative electrode that correspond to each other; Described aeration tube and vapor pipe are positioned at the bottom of described central compartment cylindrical shell.In this device, the water outlet of biochemical wastewater treatment system is processed; fluidized is formed in double shell device; gac alternately forms aerobic and environment that is anoxic in flow process, and employing granulated active carbon carries out nitration reaction in conjunction with nitrifier and denitrifying bacteria and anti-nitration reaction carries out denitrogenation.
Description
Technical field
The utility model belongs to the technical field that wastewater treatment is administered, and especially relates to and utilizes electrooxidation and gac to the device of low COD nitrogenous effluent treatment.
Background technology
In the production process of the industries such as chemical industry, pharmacy, metallurgy, produce a large amount of high-concentration waste waters, these waste water are treated, and particularly after biochemical treatment, in water outlet, organic content is very low, and mostly are the organism of bio-refractory, but still containing a large amount of nitrogens.In high concentration wastewater treatment, the ammonia nitrogen in waste water is converted into nitrate, still exists in waste water.
Along with the further propelling of country's " energy-saving and emission-reduction " policy, also more and more higher to the pollutent limit value of discharge of wastewater, especially stricter to the emission request of nitrogen.Clearly propose the important directions of discharged nitrous oxides index as the environmental protection development of " 12 " period in country " 12 " planning first, the new standard proposed in relevant industries or the exposure draft of new standard are all using the important indicator of total nitrogen as discharge of wastewater, and emission limit requires high.
The built sewage treatment facility of current above-mentioned all kinds of enterprise substantially all does not consider that total nitrogen is removed, release Hou Ge enterprise at new standard will have to transform existing utility or newly-built sewage treatment facility, therefore after existing sewage treatment facility, increase total nitrogen processing unit both can reduce investment outlay, do not affect industrial production again.
The patent No. be CN 101259977 utilize one way of life total nitrogen in landfill leachate minimizing technology that the method for microorganism removing total nitrogen and the patent No. are CN101585602 all to describe to utilize microorganism to carry out denitrogenation by nitrification and denitrification reaction, these two kinds of patents are all implement under newly constructed facility condition, not very convenient to the transformation of existing sewage treatment facility, and its nitrogen removal rate limits by nitrated reflux ratio, high clearance needs very large reflux ratio, add investment and energy consumption, and need additional carbon in some conditions.
The patent No. is that the method for CN 1,792,897 1 kinds of total nitrogen of urban sewage advanced treatment describes and carries out electrochemical reaction in municipal effluent biochemical treatment water outlet, nitrate is reduced into nitrogen, this kind of method is still inclined to principles and methods, fail to provide the device model that can be applied to project scale, simultaneously also there are no the report of practical application.
Utility model content
The utility model proposes a kind of waste disposal plant, utilize the recombining process of electrooxidation and mobility activated carbon technology, effectively remove the ammonia nitrogen in waste water and nitrate, and non-secondary pollution, working cost is low.
The technical solution adopted in the utility model is as follows:
A kind of waste disposal plant, comprise cylindrical shell and be positioned at the central compartment cylindrical shell in the middle part of described cylindrical shell, described central compartment cylindrical shell both ends open, described cylinder body bottom connects aeration tube and water inlet pipe, and described cylindrical shell is also provided with effluent weir; Described cylindrical shell and central compartment cylindrical shell are provided with the positive electrode and negative electrode that correspond to each other; Described aeration tube and vapor pipe are positioned at the bottom of described central compartment cylindrical shell,
Further preferably, described central compartment cylindrical shell bottom is trumpet type.
Further preferably, described positive electrode and negative electrode are copper electrodes.
Further preferably, described positive electrode and negative electrode are provided with titanium coating.
Further preferably, described inner barrel is provided with gac.
Further preferably, described gac accounts for 1.5 ~ 3.5% of described cylindrical shell volume.
Further preferably, the granular size of described gac is 50 ~ 150 orders.
Further preferably, described gac is fixed with nitrifier and denitrifying bacteria.
Further preferably, described effluent weir is provided with solid-liquid separator.
The cylindrical shell of the employing in the application and two tubular structures of central compartment cylindrical shell, alternately form aerobic and anaerobic environment in process waste water flow process; Central compartment inner barrel forms aerobic zone, and central compartment cylindrical shell outer perimeter forms oxygen-starved area; Ammonia nitrogen in waste water is oxidized to nitrate in aerobic zone, and the waste water after oxidation is entering electrolysis zone; The electrode that central compartment cylindrical shell top is provided with is arranged on electro-oxidation electrode, forms electrolysis zone, organism or absorption organism is on the activated carbon decomposed, larger molecular organics is decomposed into small organic molecule, for anti-nitration reaction provides carbon source; Enter oxygen-starved area after wastewater electrolytic, carry out anti-nitration reaction in oxygen-starved area, nitrated nitrogen is reduced into ammonia, thus completes removing of total nitrogen, and the small organic molecule that electrolysis zone produces is as the carbon source of anti-nitration reaction, and system does not need additional carbon.
Inner barrel is provided with or has thrown in gac, waste water enters from cylinder body bottom center, bottom aeration, central compartment cylindrical shell bottom is trumpet type, aeration by the gac of central compartment cylindrical shell upwardly, formation vacuum zone, bottom, the space, gac filled vacuum district outside central compartment cylindrical shell, the gac of inner barrel forms circulation, makes whole reactor form a circulating reaction.Gac is fixed with nitrifier and denitrifying bacteria, utilizes nitration reaction and anti-nitration reaction to complete denitrogenation.
In this device, the water outlet of biochemical wastewater treatment system is processed; fluidized is formed in double shell device; gac alternately forms aerobic and environment that is anoxic in flow process, and employing granulated active carbon carries out nitration reaction in conjunction with nitrifier and denitrifying bacteria and anti-nitration reaction carries out denitrogenation.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of waste disposal plant of the utility model;
Wherein, 1-cylindrical shell, 2-electrode anode, 3-electrode cathode, 4-solid-liquid separator, 5-effluent weir, 6-aeration tube, 7-water inlet pipe, 8-gac, 9-central compartment cylindrical shell; A-aerobic zone, B-electrolysis zone, C-oxygen-starved area; A-waste water, b-pressurized air.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical solution of the utility model, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
With reference to shown in Fig. 1, a kind of waste disposal plant, comprise cylindrical shell 1 and central compartment cylindrical shell 9, be both ends open in central compartment cylindrical shell 9, be connected with aeration tube 6 and water inlet pipe 7 bottom cylindrical shell 1, aeration tube 6 and water inlet pipe 7 are positioned at the positive bottom of central compartment cylindrical shell 9, effluent weir 5 is provided with in cylindrical shell 1, effluent weir 5 is positioned at the top of cylindrical shell 1, and central compartment cylindrical shell 9 top is provided with negative electrode 3, and cylindrical shell 1 is provided with the positive electrode 2 corresponding with electrode cathode 3.Central compartment cylindrical shell 9 bottom is trumpet type; Positive electrode 2 and negative electrode 3 are copper electrodes, and positive electrode 2 and negative electrode 3 are coated with titanium coating, increase electrode erosion resistance.
Cylindrical shell 1 inside throw in or be provided with gac 8, gac 8 account for cylindrical shell 1 without 1.5 ~ 3.5% of waste water volume, the granular size of gac 8 is 50 ~ 150 orders; Gac 8 surface is fixed with nitrifier and denitrifying bacteria.Effluent weir 5 is provided with solid-liquid separator 4, for separating of gac 8 and waste water.
During concrete use, waste water a enters in cylindrical shell 1 by water inlet pipe 7, and pressurized air b enters in cylindrical shell 1 by aeration tube 6; As illustrated by the arrows in fig. 1, pressurized air b by the gac 8 of central compartment cylindrical shell upwardly, formation vacuum zone, bottom, the space, gac 8 filled vacuum district outside central compartment cylindrical shell; Aerobic and anaerobic environment is alternately formed in process waste water flow process; Central compartment inner barrel forms aerobic zone A, and central compartment cylindrical shell outer perimeter forms oxygen-starved area C, forms electrolysis zone B between positive electrode 2 and negative electrode 3; Ammonia nitrogen in waste water is oxidized to nitrate at aerobic zone A, and the waste water after oxidation is entering electrolysis zone C; Organism or absorption organism on the activated carbon decompose by electrolysis zone C, larger molecular organics are decomposed into small organic molecule, for anti-nitration reaction provides carbon source.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (9)
1. a waste disposal plant, comprise cylindrical shell and be positioned at the central compartment cylindrical shell in the middle part of described cylindrical shell, it is characterized in that: described central compartment cylindrical shell both ends open, described cylinder body bottom connects aeration tube and water inlet pipe, and described cylindrical shell is also provided with effluent weir; Described cylindrical shell and central compartment cylindrical shell are provided with the positive electrode and negative electrode that correspond to each other; Described aeration tube and vapor pipe are positioned at the bottom of described central compartment cylindrical shell.
2. a kind of waste disposal plant as claimed in claim 1, is characterized in that: described central compartment cylindrical shell bottom is trumpet type.
3. a kind of waste disposal plant as claimed in claim 1, is characterized in that: described positive electrode and negative electrode are copper electrodes.
4. a kind of waste disposal plant as described in any one of claim 1-3, is characterized in that: described positive electrode and negative electrode are provided with titanium coating.
5. a kind of waste disposal plant as claimed in claim 4, is characterized in that: described inner barrel is provided with gac.
6. a kind of waste disposal plant as claimed in claim 5, is characterized in that: described gac accounts for 1.5 ~ 3.5% of described cylindrical shell volume.
7. a kind of waste disposal plant as described in claim 5 or 6, is characterized in that: described effluent weir is provided with solid-liquid separator.
8. a kind of waste disposal plant as described in claim 5 or 6, is characterized in that: the granular size of described gac is 50 ~ 150 orders.
9. a kind of waste disposal plant as described in claim 5 or 6, is characterized in that: described gac is fixed with nitrifier and denitrifying bacteria.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420390745.9U CN204058176U (en) | 2014-07-15 | 2014-07-15 | A kind of waste disposal plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420390745.9U CN204058176U (en) | 2014-07-15 | 2014-07-15 | A kind of waste disposal plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204058176U true CN204058176U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420390745.9U Expired - Fee Related CN204058176U (en) | 2014-07-15 | 2014-07-15 | A kind of waste disposal plant |
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| Country | Link |
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| CN (1) | CN204058176U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112162072A (en) * | 2020-09-28 | 2021-01-01 | 重庆大学 | BOD rapid detection method based on deep pretreatment of landfill leachate |
| CN112174434A (en) * | 2020-09-28 | 2021-01-05 | 重庆大学 | Reactor and method for treating landfill leachate by combining electric Fenton with denitrification biofilter |
-
2014
- 2014-07-15 CN CN201420390745.9U patent/CN204058176U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112162072A (en) * | 2020-09-28 | 2021-01-01 | 重庆大学 | BOD rapid detection method based on deep pretreatment of landfill leachate |
| CN112174434A (en) * | 2020-09-28 | 2021-01-05 | 重庆大学 | Reactor and method for treating landfill leachate by combining electric Fenton with denitrification biofilter |
| CN112162072B (en) * | 2020-09-28 | 2021-07-27 | 重庆大学 | BOD rapid detection method based on deep pretreatment of landfill leachate |
| CN112174434B (en) * | 2020-09-28 | 2021-08-10 | 重庆大学 | Reactor and method for treating landfill leachate by combining electric Fenton with denitrification biofilter |
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| 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: 20141231 Termination date: 20170715 |
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| CF01 | Termination of patent right due to non-payment of annual fee |