CN102757126B - Carbon source enrichment device and enrichment method for low carbon sewage treatment - Google Patents
Carbon source enrichment device and enrichment method for low carbon sewage treatment Download PDFInfo
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- CN102757126B CN102757126B CN2012102796011A CN201210279601A CN102757126B CN 102757126 B CN102757126 B CN 102757126B CN 2012102796011 A CN2012102796011 A CN 2012102796011A CN 201210279601 A CN201210279601 A CN 201210279601A CN 102757126 B CN102757126 B CN 102757126B
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Abstract
Disclosed are a carbon source enrichment device and an enrichment method for low carbon sewage treatment. The device comprises a pool body, a water inlet, a water outlet, a mud discharge port and an effluent weir, the water inlet, the water outlet and the mud discharge port are arranged on the pool body, the effluent weir corresponds to the water outlet and is disposed in the pool body. The device is characterized in that a barrel-shaped flow guiding device is arranged in the middle in the pool body, a water inlet end is disposed on the upper portion of the flow guiding device, the water inlet end is communicated with the water inlet of the pool body through a water inlet pipeline, the bottom end of the flow guiding device serves as a water outlet end which opens downwards, a flow guiding reflection part is disposed right below the water outlet end, the top surface of the flow guiding reflection part is a flow guiding reflection working surface, the flow guiding reflection working surface is a circular conical surface with an upward vertex, the circular conical surface is coaxially arranged with the flow guiding device, and the diameter of the bottom end of the circular conical surface is larger than that of the water outlet end of the flow guiding device. Inlet water is upwards reflected to form an upward water flow through the reflection part, consequently sludges are driven to upwards move to form a suspending sludge blanket, the carbon source enrichment is achieved by the aid of the suspending sludge blanket, and the denitrifying nitrogen removal can be achieved without the addition of the carbon source.
Description
Technical field
The present invention relates to a kind of waste disposal plant and method, especially used carbon source enriching apparatus and enriching method during the low-carbon (LC) sewage disposal.
Background technology
(the carbon source shortage refers to the own carbon source shortage in the waste water or consumes carbon source excessively owing to Sewage Treatment in Process Design is unreasonable cause carbon source to lack the waste water that lacks at carbon source at present, and exist the organism that much has bio-toxicity not lacked by the carbon source that biological utilisation causes in the trade effluent), if crossing to hang down, carbon source concentration can't realize denitrification denitrogenation.Realize denitrogenation, at first must improve carbon source concentration in the waste water.And improve the mode that carbon source concentration all is the employing additional carbon, and make the water that becomes the high density of homogeneous carbon source in the pond, realize denitrification denitrogenation.The mode of this additional carbon certainly will increase the cost of water treatment.
If can be in the pond local space enrichment carbon source, improve carbon source concentration, realize denitrification denitrogenation, just additional carbon again is conducive to cut down the consumption of energy, and reduces the cost of water treatment, the generation of minimizing sludge quantity.Therefore await at present developing a kind of can be in the pond local space enrichment carbon source realize the device and method of denitrification denitrogenation, to substitute the mode of additional carbon.
Summary of the invention
In order to overcome the shortcoming that above-mentioned prior art exists, the object of the present invention is to provide a kind of low-carbon (LC) sewage disposal carbon source enriching apparatus and enriching method, realize the carbon source enrichment by forming the sludge blanket that suspends, it needn't additional carbon, can carry out denitrification denitrogenation to low-carbon (LC) waste water and handle, energy consumption is low.
For achieving the above object, low-carbon (LC) sewage disposal carbon source enriching apparatus provided by the invention comprises that Chi Tiji is arranged on the water-in on body top, pond, water outlet, is arranged on the mud discharging mouth of body bottom, pond; Correspondingly with described water outlet in the body of pond, be provided with effluent weir; The middle part is provided with the guiding device of tubular in the body of described pond, and this guiding device top arranges feed-water end, and this feed-water end is communicated with the water-in of Chi Tishang by inlet channel; The bottom of guiding device is made as downward opening water side, one fixing water conservancy diversion reflection part is set under this water side, the end face of described water conservancy diversion reflection part is water conservancy diversion reflective operation face, this water conservancy diversion reflective operation face is summit cone surface up, this cone surface and the coaxial setting of described guiding device, the diameter of cone surface bottom is greater than the diameter of guiding device water side.
The preferred version of this carbon source enriching apparatus: described guiding device inside arranges three sections diversion cavity, three sections coaxial along the vertical direction orders successively of diversion cavity are tightly connected, and three sections diversion cavity edge directions from top to bottom are designated as first diversion cavity, second diversion cavity, the 3rd diversion cavity respectively;
First diversion cavity is the right cylindrical chamber;
Second diversion cavity is conical cavity, and top end diameter is less than the bottom diameter; Its top end diameter equals the diameter of first diversion cavity;
The 3rd diversion cavity also is conical cavity, and top end diameter is greater than the bottom diameter, and its top end diameter equals the bottom diameter of second diversion cavity;
The feed-water end of guiding device is arranged on described first diversion cavity.
The preferred version of this carbon source enriching apparatus: the corresponding mud scraper that is provided with described water outlet of described pond body inner bottom part, the center transmission main shaft of described mud scraper passes the center of described guiding device, and the motor section branch of mud scraper is arranged on the top of guiding device.
Low-carbon (LC) sewage disposal carbon source enriching method provided by the invention may further comprise the steps:
A), in the body of pond, be provided with the biological activity mud of denitrification bacterial classification;
B), the waste water of low carbon source concentration enters the guiding device that is arranged in the body of pond, after guiding device changes fluidised form, flow out water side by guiding device, and through the current upwards that reflect to form of water conservancy diversion reflection part, the reflective operation face of water conservancy diversion reflection part is that the summit is at last cone surface;
C), by the biological activity mud in the reflection current drive pond body upwards upwards, and gradually, the throw out that formation one deck suspends in the pond is designated as the reaction mud layer;
D), the described reaction mud layer that forms in to step c) through water conservancy diversion reflection part reflection current upwards plays the support effect, and form collision with described reaction mud layer, under pedesis, carbon source is held back by described reaction mud layer, make described reaction mud layer internal carbon source concentration be higher than influent concentration, realize the carbon source enrichment, the denitrification bacterial classification is breeding at a high speed in described reaction mud layer, carries out denitrification denitrogenation.
In this carbon source enriching method, preferably, described guiding device inside arranges three sections diversion cavity, and three sections coaxial along the vertical direction orders successively of diversion cavity are tightly connected, and three sections diversion cavity edge directions from top to bottom are designated as first diversion cavity, second diversion cavity, the 3rd diversion cavity respectively; The feed-water end of guiding device is arranged on described first diversion cavity;
First diversion cavity is the right cylindrical chamber; The flow velocity of water is the 0.5-1.2 mm/second in described first diversion cavity;
Second diversion cavity is conical cavity, and top end diameter is less than the bottom diameter; Its top end diameter equals the diameter of first diversion cavity; Second diversion cavity with the flow velocity 0.5-1.2 mm/second speed change of water to the 0.3-0.5 mm/second;
The 3rd diversion cavity also is conical cavity, and top end diameter is greater than the bottom diameter, and its top end diameter equals the bottom diameter of second diversion cavity;
The upflow velocity 0.05-0.1 mm/second that water forms to the described water conservancy diversion reflection part through described the 3rd diversion cavity bottom.
Preferred, the upflow velocity that water forms to the described water conservancy diversion reflection part through described the 3rd diversion cavity bottom is even constant speed.
The thickness of the reaction mud layer that preferably, forms in the step c) is 2 ~ 3 meters.
Preferably, described reaction mud layer is that net is pounced on the throw out of following the STOCKS law of building bridge and forming.
Preferably, the sludge age of described reaction mud layer is 30 ~ 50.
The invention has the beneficial effects as follows: this kind carbon source enriching apparatus and enriching method form the water inlet layer of certain upflow velocity by guiding device, and at the water inlet layer activated sludge layer that formation suspends, realize the carbon source enrichment by this activated sludge layer, dynamic activity can select mud layer to solve the technical problem of selectivity and carbon source enrichment precipitation.Imitating nitrification and denitrification for the initial stage one plays a key effect.In this carbon source enriching apparatus, the carbon source concentration in the described reaction mud layer can reach 3 ~ 6 times of carbon source concentration in the guiding device water inlet, total TOC concentration water inlet for 50-100mg/l reaction mud layer in always TOC concentration can be increased to 150-600mg/l; Thereby also be conducive to cut down the consumption of energy.Because without additional carbon, so also play an important role to reducing sludge quantity.In addition, the activated sludge layer of the suspension of whole layer has improved the efficient of carbon source enrichment and the efficient that sewage water denitrification is handled.
In addition, this carbon source enriching apparatus can be realized by the settling tank transformation of existing sewage work, saves resource and the energy.
Description of drawings
The present invention is described further below in conjunction with drawings and Examples:
Fig. 1 is the structural representation of the embodiment of carbon source enriching apparatus among the present invention;
Among the figure: 1 inlet channel, the straight tube of 2 water conservancy diversion, 3 first deflection cone tubes, 4 second deflection cone tubes, 5 water conservancy diversion reflection parts, 6 mud scrapers, 7 center transmission main shafts, 9 effluent weirs, 10 water outlets, 11 reaction mud layers, 12 pond bodies, 13 water-ins, 14 guiding devices.
Embodiment
Low-carbon (LC) sewage disposal carbon source enriching apparatus shown in Figure 1 comprises pond body 12 and is arranged on water-in 13, the water outlet 10 on pond body 12 tops, is arranged on the mud discharging mouth of pond body 12 bottoms; With the described water outlet 10 corresponding effluent weirs 9 that in pond body 12, are provided with.
The middle part is provided with the guiding device 14 of tubular in the described pond body 12.These guiding device 14 tops arrange feed-water end, and this feed-water end is communicated with water-in 13 on the pond body 12 by inlet channel 1.The bottom of guiding device 14 is made as downward opening water side, one fixing water conservancy diversion reflection part 5 is set under this water side, the end face of described water conservancy diversion reflection part 5 is water conservancy diversion reflective operation face, this water conservancy diversion reflective operation face is summit cone surface up, this cone surface and described guiding device 14 coaxial settings, the diameter of cone surface bottom is greater than the diameter of guiding device 14 water sides.
These guiding device 14 inside arrange three sections diversion cavity, and three sections coaxial along the vertical direction orders successively of diversion cavity are tightly connected, and three sections diversion cavity edge directions from top to bottom are designated as first diversion cavity, second diversion cavity, the 3rd diversion cavity respectively.
First diversion cavity is the inner chamber of the straight tube 2 of water conservancy diversion, and this first diversion cavity is the right cylindrical chamber.
Second diversion cavity is conical cavity, is the inner chamber of the first deflection cone tube 3.This second diversion cavity and top end diameter are less than the bottom diameter; Its top end diameter equals the diameter of first diversion cavity.
The 3rd diversion cavity is conical cavity also, is the inner chamber of the second deflection cone tube 4.The 3rd diversion cavity top end diameter is greater than the bottom diameter, and its top end diameter equals the bottom diameter of second diversion cavity.
The feed-water end of guiding device 14 is arranged on described first diversion cavity, namely is arranged on the straight tube 2 of water conservancy diversion.
In this carbon source enriching apparatus, the corresponding mud scraper 6 that is provided with described water outlet of described pond body 12 inner bottom parts.The center transmission main shaft 7 of described mud scraper 6 passes the center of described guiding device 14, namely passes first diversion cavity, second diversion cavity, the 3rd diversion cavity.The motor section branch of mud scraper 6 is arranged on the top of guiding device.
By above-mentioned carbon source enriching apparatus, the low-carbon (LC) sewage disposal carbon source enriching method of realization may further comprise the steps:
A), in pond body 12, be provided with the biological activity mud of denitrification bacterial classification;
B), the waste water of low carbon source concentration enters the guiding device 14 that is arranged in the body of pond, after guiding device 14 changes fluidised forms, flowed out by the water side of guiding device 14, through the reflective water flow of water conservancy diversion reflection part 5 upwards; The reflective operation face of water conservancy diversion reflection part 5 is that the summit is at last cone surface;
C), by the biological activity mud in the current drive pond body 12 that reflects upwards upwards, and gradually, the throw out that formation one deck suspends in the pond is designated as and reacts mud layer 11; Described reaction mud layer 11 is pounced on the throw out of following STOCKS law (Stokes'theorem) of building bridge and forming for net.The sludge age of this reaction mud layer 11 is 30 ~ 50.
The thickness of the reaction mud layer 11 that preferably, forms in the step c) is 2 ~ 3 meters.The thickness of this reaction mud layer can be by changing the flow-shape that the makes progress realization adjustment that guiding device forms, to adapt to different process requirements.
D), the described reaction mud layer 11 that forms in to step c) through water conservancy diversion reflection part reflection current upwards plays the support effect, and form collision with described reaction mud layer 11, under pedesis, carbon source is held back by described reaction mud layer 11, make described reaction mud layer 11 internal carbon source concentration be higher than influent concentration, realize the carbon source enrichment, the denitrification bacterial classification is breeding at a high speed in described reaction mud layer 11, carries out denitrification denitrogenation.
In this carbon source enriching method, preferably, described guiding device inside arranges three sections diversion cavity, and three sections coaxial along the vertical direction orders successively of diversion cavity are tightly connected, and three sections diversion cavity edge directions from top to bottom are designated as first diversion cavity, second diversion cavity, the 3rd diversion cavity respectively; The feed-water end of guiding device is arranged on described first diversion cavity;
First diversion cavity is that the inner chamber of the straight tube 2 of water conservancy diversion is the right cylindrical chamber; The flow velocity of water is the 0.5-1.2 mm/second in described first diversion cavity;
Second diversion cavity is the i.e. inner chamber of the first deflection cone tube 3 of conical cavity, and top end diameter is less than the bottom diameter; Its top end diameter equals the diameter of first diversion cavity; Second diversion cavity with the flow velocity 0.5-1.2 mm/second speed change of water to the 0.3-0.5 mm/second;
The 3rd diversion cavity is the inner chamber of the second deflection cone tube 4 for conical cavity also, and top end diameter is greater than the bottom diameter, and its top end diameter equals the bottom diameter of second diversion cavity;
Water through described the 3rd diversion cavity bottom to the upflow velocity 0.05-0.1 mm/second of described water conservancy diversion reflection part 5 back formation.
Under the above-mentioned fluidised form condition, the reaction mud layer 11 that formation that can be more satisfactory suspends.
Preferred, water through described the 3rd diversion cavity bottom to the upflow velocity of described water conservancy diversion reflection part 5 back formation be even constant speed.
Claims (8)
1. low-carbon (LC) sewage disposal carbon source enriching apparatus comprises that Chi Tiji is arranged on the water-in on body top, pond, water outlet, is arranged on the mud discharging mouth of body bottom, pond; Correspondingly with described water outlet in the body of pond, be provided with effluent weir; It is characterized in that: the middle part is provided with the guiding device of tubular in the body of described pond, and this guiding device top arranges feed-water end, and this feed-water end is communicated with the water-in of Chi Tishang by inlet channel; The bottom of guiding device is made as downward opening water side, one fixing water conservancy diversion reflection part is set under this water side, the end face of described water conservancy diversion reflection part is water conservancy diversion reflective operation face, this water conservancy diversion reflective operation face is summit cone surface up, this cone surface and the coaxial setting of described guiding device, the diameter of cone surface bottom is greater than the diameter of guiding device water side;
Described guiding device inside arranges three sections diversion cavity, and three sections coaxial along the vertical direction orders successively of diversion cavity are tightly connected, and three sections diversion cavity edge directions from top to bottom are designated as first diversion cavity, second diversion cavity, the 3rd diversion cavity respectively;
First diversion cavity is the right cylindrical chamber;
Second diversion cavity is conical cavity, and top end diameter is less than the bottom diameter; Its top end diameter equals the diameter of first diversion cavity;
The 3rd diversion cavity also is conical cavity, and top end diameter is greater than the bottom diameter, and its top end diameter equals the bottom diameter of second diversion cavity;
The feed-water end of guiding device is arranged on described first diversion cavity.
2. low-carbon (LC) sewage disposal carbon source enriching apparatus according to claim 1, it is characterized in that: the corresponding mud scraper that is provided with described water outlet of described pond body inner bottom part, the center transmission main shaft of described mud scraper passes the center of described guiding device, and the motor section branch of mud scraper is arranged on the top of guiding device.
3. low-carbon (LC) sewage disposal carbon source enriching method is characterized in that, may further comprise the steps:
A), in the body of pond, be provided with the biological activity mud of denitrification bacterial classification;
B), the waste water of low carbon source concentration enters the guiding device that is arranged in the body of pond, after guiding device changes fluidised form, flow out water side by guiding device, and through the current upwards that reflect to form of water conservancy diversion reflection part, the reflective operation face of water conservancy diversion reflection part is that the summit is at last cone surface;
C), by the biological activity mud in the reflection current drive pond body upwards upwards, and gradually, the throw out that formation one deck suspends in the pond is designated as the reaction mud layer;
D), the described reaction mud layer that forms in to step c) through water conservancy diversion reflection part reflection current upwards plays the support effect, and form collision with described reaction mud layer, under pedesis, carbon source is held back by described reaction mud layer, make described reaction mud layer internal carbon source concentration be higher than influent concentration, realize the carbon source enrichment, the denitrification bacterial classification is breeding at a high speed in described reaction mud layer, carries out denitrification denitrogenation.
4. low-carbon (LC) sewage disposal carbon source enriching method according to claim 3, it is characterized in that, described guiding device inside arranges three sections diversion cavity, three sections coaxial along the vertical direction orders successively of diversion cavity are tightly connected, and three sections diversion cavity edge directions from top to bottom are designated as first diversion cavity, second diversion cavity, the 3rd diversion cavity respectively; The feed-water end of guiding device is arranged on described first diversion cavity;
First diversion cavity is the right cylindrical chamber; The flow velocity of water is the 0.5-1.2 mm/second in described first diversion cavity;
Second diversion cavity is conical cavity, and top end diameter is less than the bottom diameter; Its top end diameter equals the diameter of first diversion cavity; Second diversion cavity with the flow velocity 0.5-1.2 mm/second speed change of water to the 0.3-0.5 mm/second;
The 3rd diversion cavity also is conical cavity, and top end diameter is greater than the bottom diameter, and its top end diameter equals the bottom diameter of second diversion cavity;
The upflow velocity 0.05-0.1 mm/second that water forms to the described water conservancy diversion reflection part through described the 3rd diversion cavity bottom.
5. according to claim low-carbon (LC) sewage disposal carbon source enriching method according to claim 4, it is characterized in that the upflow velocity that water forms to the described water conservancy diversion reflection part through described the 3rd diversion cavity bottom is even constant speed.
6. low-carbon (LC) sewage disposal carbon source enriching method according to claim 3 is characterized in that, the thickness of the reaction mud layer that forms in the step c) is 2～3 meters.
7. according to described any one low-carbon (LC) sewage disposal carbon source enriching method of claim 3-6, it is characterized in that described reaction mud layer is that net is pounced on the throw out of following the STOCKS law of building bridge and forming.
8. low-carbon (LC) sewage disposal carbon source enriching method according to claim 7 is characterized in that, the sludge age of described reaction mud layer is 30～50.
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| CN103961912B (en) * | 2014-05-21 | 2016-01-06 | 重庆大学 | Husky device washed by machinery |
| WO2018188317A1 (en) * | 2017-04-13 | 2018-10-18 | Paques Environmental Technology (Shanghai) Co., Ltd | Anaerobic reactor and anaerobic wastewater treatment process |
| CN109626712A (en) * | 2018-03-12 | 2019-04-16 | 合肥智慧龙图腾知识产权股份有限公司 | A kind of Small Town Wastewater processing engineering reaction tank |
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| SU757473A1 (en) * | 1977-07-14 | 1980-08-23 | Vnii Vodosnabzheniya | Device for clarifying natural and waste waters |
| CN101234820A (en) * | 2008-02-28 | 2008-08-06 | 同济大学 | Jet flow water distribution device and application thereof |
| CN201309852Y (en) * | 2008-10-16 | 2009-09-16 | 广州华浩能源环保工程有限公司 | Sewage purification precipitator |
| CN201962118U (en) * | 2010-12-30 | 2011-09-07 | 江苏新琦环保有限公司 | Denitrifying water distributor |
| CN102583677A (en) * | 2012-03-12 | 2012-07-18 | 中机国际工程设计研究院有限责任公司 | Integrated water treatment purifier |
| CN202717632U (en) * | 2012-08-08 | 2013-02-06 | 山东省肿瘤防治研究院 | Carbon source enrichment device for low-carbon sewage treatment |
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- 2012-08-08 CN CN2012102796011A patent/CN102757126B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU757473A1 (en) * | 1977-07-14 | 1980-08-23 | Vnii Vodosnabzheniya | Device for clarifying natural and waste waters |
| CN101234820A (en) * | 2008-02-28 | 2008-08-06 | 同济大学 | Jet flow water distribution device and application thereof |
| CN201309852Y (en) * | 2008-10-16 | 2009-09-16 | 广州华浩能源环保工程有限公司 | Sewage purification precipitator |
| CN201962118U (en) * | 2010-12-30 | 2011-09-07 | 江苏新琦环保有限公司 | Denitrifying water distributor |
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Inventor after: Yan Xuncheng Inventor after: Jiang Jianmin Inventor after: Bao Yanan Inventor after: Wang Xingjun Inventor after: An Lihua Inventor after: Wang Yongxin Inventor before: Jiang Jianmin Inventor before: Bao Yanan Inventor before: Wang Xingjun Inventor before: An Lihua Inventor before: Yan Xuncheng Inventor before: Wang Yongxin |
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