CN220376529U - Synchronous denitrification MBR sewage treatment device utilizing solid carbon source - Google Patents
Synchronous denitrification MBR sewage treatment device utilizing solid carbon source Download PDFInfo
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- CN220376529U CN220376529U CN202321938986.8U CN202321938986U CN220376529U CN 220376529 U CN220376529 U CN 220376529U CN 202321938986 U CN202321938986 U CN 202321938986U CN 220376529 U CN220376529 U CN 220376529U
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- reaction tank
- solid carbon
- membrane biological
- sewage
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 97
- 239000007787 solid Substances 0.000 title claims abstract description 87
- 239000010865 sewage Substances 0.000 title claims abstract description 61
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 21
- 238000011282 treatment Methods 0.000 title claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 89
- 239000012528 membrane Substances 0.000 claims abstract description 58
- 238000005273 aeration Methods 0.000 claims abstract description 28
- 238000005276 aerator Methods 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 238000004659 sterilization and disinfection Methods 0.000 claims description 11
- 238000010992 reflux Methods 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- 238000004065 wastewater treatment Methods 0.000 claims 9
- 239000007788 liquid Substances 0.000 abstract description 7
- 241000894006 Bacteria Species 0.000 description 12
- 230000001546 nitrifying effect Effects 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000001954 sterilising effect Effects 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000007227 biological adhesion Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000000645 desinfectant Substances 0.000 description 2
- 244000000010 microbial pathogen Species 0.000 description 2
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 238000011369 optimal treatment Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a synchronous denitrification MBR sewage treatment device utilizing a solid carbon source, which relates to the technical field of sewage treatment and comprises the following components: the device comprises a contact reaction tank, a solid carbon source containing container, a membrane biological reaction tank and a blower. A first aerator pipe is arranged in the contact reaction tank; the solid carbon source containing container is arranged in the contact reaction tank and is positioned above the first aerator pipe, solid carbon sources are stored in the solid carbon source containing container, and openings are formed in the bottom wall and the side wall of the solid carbon source containing container; the membrane biological reaction tank is communicated with the contact reaction tank through an overflow port, a membrane biological reactor component is arranged in the membrane biological reaction tank, the membrane biological reactor component is connected with a self-priming pump to discharge sewage in the membrane biological reaction tank, and a second aeration pipe positioned below the membrane biological reactor component is arranged in the membrane biological reaction tank; the air blower conveys compressed air to the first aeration pipe and the second aeration pipe through the gas pipeline. The present utility model reduces operating costs when compared to using a liquid carbon source.
Description
Technical Field
The utility model relates to the technical field of sewage treatment, in particular to a synchronous denitrification MBR sewage treatment device utilizing a solid carbon source.
Background
In recent years, with the rapid development of countries, the living standard of residents is gradually improved, various nitrogen and phosphorus substances are used in large quantity, and the nitrogen and phosphorus wastewater is discharged into water after being untreated or incompletely treated, so that black and odorous water bodies begin to appear in villages and towns, and the health and stability of the whole water ecological system are affected. However, practice proves that the village and town sewage generally has the characteristics of low concentration and low C/N, the carbon source is insufficient, the nitrogen content in the sewage is relatively high, the C/N ratio is low, and a sewage biochemical system cannot effectively operate, so that the addition of the carbon source becomes a necessary condition for guaranteeing the normal operation of a village and town sewage treatment plant, and the existing mode mainly adopts an external liquid carbon source for being required by living activities of microorganisms, thereby achieving the aim of biological denitrification. The commonly used external carbon source is mainly liquid organic matters, such as glucose, methanol and other saccharides. Although the small molecular liquid carbon source has high carbon supply speed and obvious reaction effect, the liquid organic carbon dosage is generally difficult to control, transport and store in the sewage treatment process, and the toxicity of the liquid carbon source methanol is easy to produce secondary pollution.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the synchronous denitrification MBR sewage treatment device utilizing the solid carbon source, which can use the solid carbon source and reduce the running cost.
According to an embodiment of the first aspect of the present utility model, a synchronous denitrification MBR sewage treatment device using a solid carbon source includes: the device comprises a contact reaction tank, a solid carbon source containing container, a membrane biological reaction tank and a blower. The contact reaction tank is used for receiving and storing sewage, and a first aeration pipe is arranged in the contact reaction tank; the solid carbon source containing container is arranged in the contact reaction tank and is positioned above the first aeration pipe, solid carbon sources are stored in the solid carbon source containing container, and holes are formed in the bottom wall and the side wall of the solid carbon source containing container so as to facilitate sewage circulation; the membrane biological reaction tank is communicated with the contact reaction tank through an overflow port, a membrane biological reactor component is arranged in the membrane biological reaction tank, the membrane biological reactor component is connected with a self-priming pump to discharge sewage in the membrane biological reaction tank, and a second aeration pipe positioned below the membrane biological reactor component is arranged in the membrane biological reaction tank; the air blower is connected with an air pipeline, the air pipeline is connected with the first aeration pipe and the second aeration pipe, and the air blower conveys compressed air to the first aeration pipe and the second aeration pipe through the air pipeline.
The synchronous denitrification MBR sewage treatment device utilizing the solid carbon source has at least the following beneficial effects: the solid carbon source containing container is placed in the contact reaction tank, and the solid carbon source in the solid carbon source containing container can be used as a biological adhesion carrier and can also provide a carbon source in a longer time, so that the operation cost is reduced compared with that of using a liquid carbon source while the better sewage treatment effect is ensured.
According to some embodiments of the utility model, the contact reaction tank is communicated with the regulating tank to receive sewage in the regulating tank, and a grid is arranged at the inlet of the regulating tank to intercept part of solid impurities in the sewage.
According to some embodiments of the utility model, a reflux pump is connected to the membrane bioreactor for pumping out the sewage from the membrane bioreactor and delivering the sewage to the contact reactor.
According to some embodiments of the utility model, the self-priming pump is connected to a contact disinfection tank.
According to some embodiments of the utility model, the contact disinfection tank is provided with a water return pipe for discharging sewage in the contact disinfection tank into the membrane bioreactor tank, and the water return pipe is provided with a water return valve.
According to some embodiments of the utility model, a lifting device is arranged above the contact reaction tank, and the lifting device is used for taking out or putting the solid carbon source containing container into the contact reaction tank.
According to some embodiments of the utility model, the lifting device comprises two upright posts, a cross rod and lifting rings, wherein the upright posts are vertically connected to the upper ends of the contact reaction tank, two ends of the cross rod are respectively connected to the upper ends of the two upright posts, the lifting rings are connected to the cross rod, a first steel wire rope is arranged in the lifting rings in a penetrating manner, one end of the first steel wire rope is connected with the top of the solid carbon source containing container, and the other end of the first steel wire rope is connected with the upright posts.
According to some embodiments of the utility model, a sliding block is sleeved on the cross rod, the lower end of the sliding block is connected with the hanging ring, the lower end of the sliding block is connected with a fixed ring, the sliding block can move along the cross rod, the fixed ring is connected with a second steel wire rope, one end, far away from the fixed ring, of the second steel wire rope is connected with the upright post, and the first steel wire rope and the second steel wire rope are respectively connected with the two upright posts.
According to some embodiments of the utility model, the side wall of the upright is connected with a lifting lug, and the lifting lug is used for fixing the first steel wire rope or the second steel wire rope.
According to some embodiments of the utility model, the length of the cross-bar is greater than the width of the contact reaction tank to enable the solid carbon source holding container to be moved to a position that is clear above the contact reaction tank.
The synchronous denitrification MBR sewage treatment device utilizing the solid carbon source has at least the following beneficial effects:
(1) The solid carbon source is adopted, so that the solid carbon source can be used as a biological adhesion carrier and can be provided for a long time, and the cost is reduced;
(2) The membrane bioreactor is utilized to realize mud-water separation, a separation tank such as precipitation, filtration and the like is not required to be independently established, and the occupied area is small;
(3) The lifting device is used for driving the solid carbon source containing container to move, so that the solid carbon source is convenient to replace.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The utility model is further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
FIG. 2 is a schematic view of a lifting device according to an embodiment of the utility model
Fig. 3 is an enlarged view at a in fig. 2.
Reference numerals:
a contact reaction tank 100, an overflow port 101 and a first aerator pipe 110;
a solid carbon source holding container 200;
a membrane bioreactor 300, a membrane bioreactor assembly 310, a self-priming pump 320, a second aeration tube 330, and a reflux pump 340;
blower 400, gas line 410;
an adjusting tank 500, a grid 510;
a contact disinfection tank 600, a return pipe 610, and a return valve 620;
hoist device 700, stand 710, lug 711, horizontal pole 720, rings 730, first wire rope 740, slider 750, solid fixed ring 760, second wire rope 770.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, plural means two or more. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to fig. 1 to 3, a synchronous denitrification MBR sewage treatment apparatus using a solid carbon source according to an embodiment of the present utility model includes: the sewage treatment device comprises a contact reaction tank 100, a solid carbon source containing container 200, a membrane biological reaction tank 300 and a blower 400, wherein the contact reaction tank 100 is used for receiving and storing sewage, a plug flow stirrer is arranged in the contact reaction tank 100 and used for pushing the sewage in the contact reaction tank 100 to circularly flow, the specific structure of the plug flow stirrer is not described in detail in the prior art, the contact reaction tank 100 is also stored with activated sludge for purifying the sewage, the activated sludge contains denitrifying bacteria and nitrifying bacteria, and ammonia nitrogen and carbon source organic matters in the sewage are converted into nitrogen and carbon dioxide under the combined action of the denitrifying bacteria and the nitrifying bacteria, namely synchronous nitrification and denitrification are carried out in the contact reaction tank 100. Is beneficial to reducing the volume of the traditional reactor and saving the capital cost. The contact reaction tank 100 is provided with a first aeration pipe 110, the first aeration pipe 110 is provided with a plurality of small Kong Gutai carbon source containing containers 200 which are arranged in the contact reaction tank 100 at intervals and are positioned above the first aeration pipe 110, the solid carbon source containing containers 200 store solid carbon sources, and the solid carbon sources are rice hulls, corncobs and other natural cellulose-containing materials, and it is expected that the solid carbon sources are made into porous spheres which can be oversuspension in water, anaerobic denitrifying bacteria grow in the solid carbon sources, and denitrification can be realized; aerobic nitrifying bacteria grow outside to remove organic matters, and nitrifying and denitrifying processes exist simultaneously in the whole treatment process. The solid carbon source can be used as a biological adhesion carrier and can also provide long-acting carbon source supplement. The bottom wall and the side wall of the solid carbon source holding container 200 are provided with holes for sewage circulation; the membrane biological reaction tank 300 is communicated with the contact reaction tank 100 through an overflow port 101, a membrane biological reaction tank 300 is provided with a membrane biological reaction tank assembly 310, nitrifying bacteria are put into the membrane biological reaction tank 300, the membrane biological reaction tank assembly 310 is connected with a self-priming pump 320 to discharge sewage in the membrane biological reaction tank 300, and the membrane biological reaction tank 300 is provided with a second aeration pipe 330 positioned below the membrane biological reaction tank assembly 310. The blower 400 is connected with a gas pipe 410, the gas pipe 410 is connected with the first and second aeration pipes 110 and 330, and the blower 400 delivers compressed air to the first and second aeration pipes 110 and 330 through the gas pipe 410. It is expected that, because the dissolved oxygen in the contact reaction tank 100 is critical to synchronous nitrification and denitrification, the optimal effect can be achieved by controlling the concentration of the dissolved oxygen in the contact reaction tank 100 to make the nitrification rate and the denitrification rate substantially consistent, so that a flow control valve is arranged between the gas transmission pipeline 410 and the first aeration pipe 110 to control the gas output of the first aeration pipe 110, and the contact reaction tank 100 can be operated under the working conditions of continuous aeration, intermittent aeration, non-aeration and the like according to the condition of the quality of the sewage water, so that the optimal treatment efficiency can be maintained. The second aerator pipe 330 continuously introduces air into the membrane bioreactor 300 to maintain the dissolved oxygen in the membrane bioreactor 300 to reach the condition suitable for nitrifying bacteria to reproduce.
Referring to fig. 1 to 3, it can be appreciated that the contact reaction tank 100 communicates with the regulating tank 500 to receive sewage in the regulating tank 500, and a grating 510 is provided at an inlet of the regulating tank 500 to intercept a portion of solid impurities in the sewage. The regulating tank 500 plays a role in buffering, so that sewage in a period of time is fully mixed and then enters the contact reaction tank 100, and the buffer capacity for organic matter load is provided under the condition of large water quality fluctuation, so that the rapid change of nitrifying bacteria and nitrifying bacteria living environments in the contact reaction tank 100 is prevented.
Referring to fig. 1 to 3, it can be understood that the membrane bioreactor tank 300 is connected with a return pump 340, and the return pump 340 is used to pump out sewage in the membrane bioreactor tank 300 and deliver the sewage to the contact reactor tank 100. When the water quality of the effluent of the membrane biological reaction tank 300 is not qualified, the reflux pump 340 is started, the sewage in the membrane biological reaction tank 300 is conveyed to the contact reaction tank 100 for continuous treatment, and when the water quality of the effluent of the membrane biological reaction tank 300 is qualified, the reflux pump 340 is stopped.
Referring to fig. 1 to 3, it can be appreciated that the self-priming pump 320 is connected to a contact disinfection tank 600. Disinfectants such as NaClO, liquid chlorine, caClO and the like are added into the contact disinfection tank 600 to kill pathogenic microorganisms in the treated sewage. The specific structure of the contact sterilizing pond 600 is prior art and will not be described in detail.
Referring to fig. 1 to 3, it can be understood that the contact disinfection tank 600 is provided with a return pipe 610 to discharge sewage in the contact disinfection tank 600 into the membrane bioreactor tank 300 to wash the membrane bioreactor, and the return pipe 610 is provided with a return valve 620. When excessive sludge or biological film is accumulated on the membrane bioreactor and the filtration performance is affected, the water return valve 620 is opened to flush the membrane bioreactor so as to recover the filtration performance. It is contemplated that the contact sterilizing tank 600 may be higher than the membrane bioreactor tank 300 to drain water into the membrane bioreactor tank 300 by gravity, and that a water pump may be used to pump the sewage from the contact sterilizing tank 600 to the membrane bioreactor tank 300 when the contact sterilizing tank 600 is lower than or equal to the membrane bioreactor tank 300 under the limitation of topography or other conditions.
Referring to fig. 1 to 3, it can be understood that a lifting device 700 is provided above the contact reaction tank 100, and the lifting device 700 is used to take out or put in the solid carbon source holding container 200 to the contact reaction tank 100. Since the solid carbon source container 200 is large in volume and the solid carbon source needs to be replaced at regular time, the lifting device 700 is provided so as to facilitate the removal of the solid carbon source container 200 for replacing the solid carbon source inside.
Referring to fig. 1 to 3, it can be understood that the lifting device 700 includes two upright posts 710, a cross bar 720, and a lifting ring 730, the upright posts 710 are vertically connected to the upper ends of the contact reaction tank 100, two ends of the cross bar 720 are respectively connected to the upper ends of the two upright posts 710, the cross bar 720 spans the contact reaction tank 100, the lifting ring 730 is connected to the cross bar 720, a first steel wire rope 740 is threaded in the lifting ring 730, one end of the first steel wire rope 740 is connected to the top of the solid carbon source containing container 200, and the other end is connected to the upright posts 710. Lifting and lowering of the solid carbon source container 200 can be conveniently accomplished by pulling the first wire rope 740. When the weight of the solid carbon source container 200 is large, the tool such as a manual hoist can be used for assisting in pulling the steel wire rope. To reduce the weight of the solid carbon source-containing vessel 200, the solid carbon source-containing vessel 200 is composed of a steel wire mesh and a stainless steel bracket.
Referring to fig. 1 to 3, it may be understood that a slider 750 is sleeved on the cross bar 720, the lower end of the slider 750 is connected with the suspension ring 730, the lower end of the slider 750 is connected with a fixing ring 760, the slider 750 can move along the cross bar 720, the fixing ring 760 is connected with a second wire rope 770, one end of the second wire rope 770 far away from the fixing ring 760 is connected with the upright post 710, and the first wire rope 740 and the second wire rope 770 are respectively connected with the two upright posts 710. When the solid carbon source container 200 needs to be taken out, the first wire rope 740 is pulled to enable the solid carbon source container 200 to ascend, then after the solid carbon source container 200 ascends to leave the water surface, the second wire rope 770 is gradually loosened while the first wire rope 740 is pulled, and the solid carbon source container 200 is horizontally moved to a place convenient for replacing the solid carbon source. When the solid carbon source containing container 200 is required to be placed, the second steel wire rope 770 is tensioned and the first steel wire rope 740 is gradually loosened, the second steel wire rope 770 pulls the sliding block 750 to drive the solid carbon source containing container 200 to move along the transverse rod 720, the first steel wire rope 740 is gradually loosened to maintain the height of the solid carbon source containing container 200, after the solid carbon source containing container 200 moves to the position right above the contact reaction tank 100, the second steel wire rope 770 is fastened on the upright post 710, and then the first steel wire rope 740 is gradually sent out to enable the solid carbon source containing container 200 to descend into sewage in the contact reaction tank 100.
Referring to fig. 1 to 3, it will be appreciated that a lifting lug 711 is connected to a side wall of the column 710, and the lifting lug 711 is used to fix the first wire rope 740 or the second wire rope 770. And the working efficiency is improved.
Referring to fig. 1 to 3, it can be appreciated that the length of the cross bar 720 is greater than the width of the contact reaction tank 100 so that the solid carbon source holding container 200 can be moved to a position to be escaped from above the contact reaction tank 100. So that the solid carbon source-containing vessel 200 can be moved to a position in the vicinity of the contact reaction tank 100 for easy operation. The replacement speed is improved.
Working principle: the sewage enters the regulating tank 500 and is screened by the grid 510 to intercept part of solid impurities in the sewage, the regulating tank 500 plays a role of buffering, the sewage in a period of time is fully mixed and then enters the contact reaction tank 100, ammonia nitrogen and carbon source organic matters in the sewage are converted into nitrogen and carbon dioxide under the combined action of denitrifying bacteria and nitrifying bacteria in the contact reaction tank 100, the carbon source organic matters come from solid carbon sources in the solid carbon source containing container 200, the sewage in the contact reaction tank 100 enters the membrane biological reaction tank 300 through the overflow port 101 for further treatment, the sewage is filtered by the membrane biological reactor and is conveyed to the contact reaction tank 100 by the self-priming pump 320, and the sewage is added with disinfectant in the contact reaction tank 100 to kill pathogenic microorganisms in the treated sewage and then discharged into a natural water body.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.
Claims (10)
1. A synchronous denitrification MBR sewage treatment device utilizing a solid carbon source, which is characterized by comprising:
a contact reaction tank (100) for receiving and storing sewage, wherein a first aeration pipe (110) is arranged in the contact reaction tank (100);
a solid carbon source containing container (200) arranged in the contact reaction tank (100) and positioned above the first aeration pipe (110), wherein solid carbon sources are stored in the solid carbon source containing container (200), and the bottom wall and the side wall of the solid carbon source containing container (200) are provided with holes for facilitating sewage circulation;
the membrane biological reaction tank (300) is communicated with the contact reaction tank (100) through an overflow port (101), a membrane biological reactor component (310) is arranged in the membrane biological reaction tank (300), the membrane biological reactor component (310) is connected with a self-priming pump (320) to discharge sewage in the membrane biological reaction tank (300), and a second aerator pipe (330) positioned below the membrane biological reactor component (310) is arranged in the membrane biological reaction tank (300);
the air blower (400) is connected with an air pipeline (410), the air pipeline (410) is connected with the first aeration pipe (110) and the second aeration pipe (330), and the air blower (400) is used for conveying compressed air to the first aeration pipe (110) and the second aeration pipe (330) through the air pipeline (410).
2. The synchronous denitrification MBR wastewater treatment device utilizing a solid carbon source according to claim 1, wherein the device comprises: the contact reaction tank (100) is communicated with the regulating tank (500) to receive sewage in the regulating tank (500), and a grid (510) is arranged at the inlet of the regulating tank (500) to intercept part of solid impurities in the sewage.
3. The synchronous denitrification MBR wastewater treatment device utilizing a solid carbon source according to claim 2, wherein: the membrane biological reaction tank (300) is connected with a reflux pump (340), and the reflux pump (340) is used for pumping out sewage in the membrane biological reaction tank (300) and conveying the sewage to the contact reaction tank (100).
4. A synchronous denitrification MBR wastewater treatment device utilizing a solid carbon source according to claim 3, wherein: the self-priming pump (320) is connected with a contact disinfection tank (600).
5. The synchronous denitrification MBR wastewater treatment device utilizing a solid carbon source according to claim 4, wherein: the contact disinfection tank (600) is provided with a water return pipe (610) for discharging sewage in the contact disinfection tank (600) into the membrane biological reaction tank (300), and the water return pipe (610) is provided with a water return valve (620).
6. The synchronous denitrification MBR wastewater treatment device utilizing a solid carbon source according to claim 5, wherein the device comprises: lifting devices (700) are arranged above the contact reaction tank (100), and the lifting devices (700) are used for taking out the solid carbon source containing container (200) or putting the solid carbon source containing container into the contact reaction tank (100).
7. The synchronous denitrification MBR wastewater treatment device utilizing a solid carbon source according to claim 6, wherein: hoist device (700) are in including two stand (710), horizontal pole (720), rings (730), stand (710) are vertical to be connected contact reaction pond (100) upper end, horizontal pole (720) both ends are connected respectively two stand (710) upper end, rings (730) are connected on horizontal pole (720), wear to be equipped with first wire rope (740) in rings (730), first wire rope (740) one end with solid carbon source holds container (200) top and links to each other, the other end with stand (710) link to each other.
8. The synchronous denitrification MBR wastewater treatment device utilizing a solid carbon source according to claim 7, wherein: the horizontal pole (720) is gone up the cover and is equipped with slider (750), slider (750) lower extreme with rings (730) link to each other, slider (750) lower extreme is connected with solid fixed ring (760), slider (750) can be followed horizontal pole (720) are removed, gu fixed ring (760) are connected with second wire rope (770), second wire rope (770) are kept away from gu fixed ring (760) one end with stand (710) link to each other, first wire rope (740) with second wire rope (770) are connected respectively on two stand (710).
9. The synchronous denitrification MBR wastewater treatment device utilizing a solid carbon source according to claim 8, wherein: the side wall of the upright post (710) is connected with a lifting lug (711), and the lifting lug (711) is used for fixing the first steel wire rope (740) or the second steel wire rope (770).
10. The synchronous denitrification MBR wastewater treatment device utilizing a solid carbon source according to claim 9, wherein: the length of the cross bar (720) is greater than the width of the contact reaction tank (100) so that the solid carbon source holding container (200) can be moved to a position avoiding above the contact reaction tank (100).
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