CN211946462U - Composite denitrification biological pond - Google Patents
Composite denitrification biological pond Download PDFInfo
- Publication number
- CN211946462U CN211946462U CN202020105799.1U CN202020105799U CN211946462U CN 211946462 U CN211946462 U CN 211946462U CN 202020105799 U CN202020105799 U CN 202020105799U CN 211946462 U CN211946462 U CN 211946462U
- Authority
- CN
- China
- Prior art keywords
- pipe
- biological pond
- biological
- pond body
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model discloses a composite denitrification biological pool, which comprises a biological pool body, wherein the biological pool body consists of a water distribution system, a gas backwashing system, biological fillers, a filler bracket, a backwashing wastewater drainage channel, a backwashing wastewater drainage pipe and a carbon source accurate feeding control system; the water distribution system comprises a water inlet pipe, water distribution pipes, a water outlet pipe and a water outlet channel, wherein the water inlet pipe communicated with the biological pond body is installed on one end face of the bottom of the biological pond body, the water distribution pipes are evenly and equidistantly arranged on the water inlet pipe positioned in the biological pond body, the water outlet channel is arranged at the upper part of the biological pond body, the water outlet pipe is installed at the side end of the upper part of the biological pond body, the water outlet pipe is distributed at one side deviating from the water inlet pipe, and the water outlet pipe can; the gas backwashing system comprises a backwashing air pipe and an air inlet control valve, and the backwashing air pipe is installed on one side of the biological pond body deviating from the water inlet pipe. The utility model discloses possess high-efficient stable, manage simple and low-cost, advantage that the energy consumption is low.
Description
Technical Field
The utility model relates to a sewage advanced treatment technical field specifically is a compound biological pond of denitrogenation.
Background
In recent years, due to the rapid development of our society, the improvement of economic level and the acceleration of the urbanization process, local discharge standards of urban sewage and sewage treatment plants are respectively issued everywhere, along with the improvement of the discharge standards and the increase of the environment-friendly law enforcement, especially the requirements of total nitrogen and total phosphorus, the eutrophication of water bodies can be caused by overhigh discharge standard, and the discharge pressure of the sewage treatment plants reaching the standard is increased. 2019, the country also publishes a three-year action scheme for improving the quality and the efficiency of urban sewage, and proposes that the quality and the efficiency of sewage treatment are taken as important problems related to the livelihood and the key field of internal demand is enlarged, and the urban domestic sewage collection and treatment capacity and level are comprehensively improved, so that the sewage treatment plant simultaneously faces the problems of improving the quality and the efficiency, saving energy and reducing consumption. The prior sewage treatment plant can cause that part of indexes of the sewage treatment plant can not stably reach the standard due to various reasons such as system design, treatment process, management measures, a collection system, inlet water quality fluctuation and the like, and particularly ammonia nitrogen and total nitrogen indexes almost become the ubiquitous problem of the sewage treatment plant in China.
At present, the national emission standards for ammonia nitrogen and total nitrogen of most sewage treatment plants are respectively 5(8) mg/L and 15mg/L, the local emission standards are respectively improved to 1.5mg/L and 10mg/L, and the total nitrogen requirements of partial basins and parts are improved to be less than 5mg/L, so that the method for ensuring the total nitrogen to reach the standard usually adopts strengthening measures, treatment structure increasing and other methods, for example, aeration biological filters, denitrification filters, carbon source adding and other methods are additionally arranged in a deep treatment section, typical treatment processes comprise deep bed denitrification filters, aeration biological filter forms denitrification filters, continuous sand bed denitrification filters and the like, but the treatment processes are limited by factors such as filter structure, filler type and the like, the problems of large water head loss, complex operation management, high energy consumption, lower treatment efficiency and the like still exist, and the requirements of the latest emission standards are difficult to meet, therefore, driven by the upgrading and efficiency improvement, energy conservation and consumption reduction of sewage treatment and the up-to-standard process, the problems of high efficiency, stability, simple management and low cost are needed to be solved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a compound biological pond of denitrogenation has solved the technical problem that above-mentioned background proposed.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a compound biological pond of denitrogenation, includes biological pond body, its characterized in that: the biological pond body consists of a water distribution system, a gas backwashing system, biological fillers, a filler bracket, a backwashing wastewater drainage channel, a backwashing wastewater drainage pipe and a carbon source accurate feeding control system;
the water distribution system comprises a water inlet pipe, water distribution pipes, a water outlet pipe and a water outlet channel, wherein the water inlet pipe communicated with the biological pond body is installed on one end face of the bottom of the biological pond body, the water distribution pipes are evenly and equidistantly arranged on the water inlet pipe positioned in the biological pond body, the water outlet channel is arranged at the upper part of the biological pond body, the water outlet pipe is installed at the side end of the upper part of the biological pond body, the water outlet pipe is distributed at one side deviating from the water inlet pipe, and the water outlet pipe can;
the gas backwashing system comprises a backwashing air pipe and an air inlet control valve, and the backwashing air pipe is arranged on one side of the biological pond body, which is far away from the water inlet pipe;
a filler bracket is arranged in the biological pond body, and biological filler is filled between the filler brackets;
biological pond body upper portion is equipped with backwash waste water drainage canal, biological pond body upper portion is installed and is led to backwash waste water drain pipe of canal fluid intercommunication with backwash waste water, and backwash waste water drain pipe deviates from outlet pipe one side.
Preferably, the form of the biological tank body can be a concrete structure and a steel structure.
Preferably, the biological pond body is provided with a water inlet control valve, the water outlet pipe is provided with a water outlet control valve, the water inlet pipe is communicated with the water distribution pipe through fluid, and the outlet of the water distribution pipe is directed at the bottom of the biological pond body.
Preferably, the biological pond body is provided with four backwashing air branch pipes which are distributed at equal intervals, the distance between the branch pipes is about 500-700 mm, the branch pipes are connected with an air main pipe, an air inlet control valve is arranged on the backwashing air main pipe, and a backwashing wastewater discharge control valve is arranged on the backwashing wastewater discharge pipe.
Preferably, the carbon source accurate adding control system comprises a water inlet online flowmeter, a feed-forward nitrate nitrogen online instrument, a post-feedback nitrate nitrogen online instrument, a pool dissolved oxygen online instrument, a control device and a variable-frequency carbon source adding pump.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. the utility model can realize the removal of ammonia nitrogen and total nitrogen respectively and the synchronous removal of ammonia nitrogen and total nitrogen, and has high removal rate; when the carbon source is sufficient in an anoxic environment, the total nitrogen of effluent can be ensured to be lower than 3 mg/L; the nitrification efficiency is high in the aerobic environment, and the ammonia nitrogen in the effluent can reach the undetected standard; under the facultative environment, the synchronous removal function of ammonia nitrogen and total nitrogen can be realized, and higher removal rate is kept.
2. The utility model discloses a little resistance water distribution system and high porosity biofilm carrier, therefore water distribution system and packing district head loss are very little, and general unit lattice is less than 100 mm.
3. The light biological filler has the advantages that the porosity of the internal carrier is high, the specific surface area is large, the biological adhesive force is strong, the chemical and biological stability is good, the porosity of the internal carrier is 95 percent, the microorganism can be effectively fixed, the microbial adhesive amount is increased, and the concentration of the microorganism fixed on the carrier can reach 15g/L (dry weight), so that the high removal rate of the microorganism is ensured; even under an aerobic environment, the single carrier sequentially has aerobic, facultative, anoxic and anaerobic environments from outside to inside, and can simultaneously realize the removal of ammonia nitrogen, total nitrogen and COD; the process belongs to a biomembrane method, reduces the output of excess sludge, and can reduce the output of excess sludge by more than 70 percent for domestic sewage;
4. the utility model does not need to be provided with a water backwashing system, only needs gas backwashing when being used as an anoxic denitrification tank, can realize backwashing without stopping water, and discharges backwashing wastewater through a backwashing wastewater pipeline; when the biological aerated tank is used, no backwashing is needed.
5. The utility model discloses can hold back the suspended solid simultaneously, go out water SS and be about 15-20mg/L under the oxygen deficiency denitrification operating mode, under the good oxygen aeration operating mode, can not load spherical suspension filler, directly load the functional carrier in the filler district, go out water SS and be about 10-15 mg/L.
6. The service life of the biological filler of the utility model is not less than 10 years.
7. The utility model has simple operation management; only gas backwashing is needed under an anoxic denitrification environment, the backwashing period is 48-72h, and the valves needing to be operated and controlled are only electric valves of a backwashing air pipeline and a backwashing wastewater pipeline; no back washing is needed in aerobic aeration environment and facultative environment.
8. The utility model discloses the working costs is low, and the equipment that moves in this system operation process mainly is aeration fan or backwash fan, therefore the energy consumption is low, and the working costs is low.
Drawings
FIG. 1 is a schematic view of a multi-cell parallel front sectional structure of the present invention;
FIG. 2 is the schematic view of the cross-sectional structure of the single tank side of the present invention
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 2, the present invention provides a technical solution of a composite denitrification biological tank: a composite denitrification biological pool comprises a biological pool body, wherein the biological pool body is respectively used as an aeration biological pool, a denitrification biological pool or a synchronous nitrification and denitrification biological pool, the operation mode is flexible, and the biological pool can be switched under three working conditions; the biological pond body is designed to be used in a multi-grid parallel connection mode or a single-grid mode; the biological tank body can be in a concrete structure or a steel structure.
The biological pond body consists of a water distribution system, a gas backwashing system, biological fillers, a filler bracket, a backwashing wastewater drainage channel, a backwashing wastewater drainage pipe and a carbon source accurate feeding control system;
the water distribution system comprises a water inlet pipe, water distribution pipes, a water outlet pipe and a water outlet channel, wherein the water inlet pipe communicated with the biological pond body is installed on one end face of the bottom of the biological pond body, the water distribution pipes are evenly arranged on the water inlet pipe in the biological pond body at equal intervals, the water outlet channel is arranged on the upper portion of the biological pond body, the water outlet pipe is installed at the side end of the upper portion of the biological pond body, the water outlet pipe is distributed at one side, which is far away from the water inlet pipe, and can be in fluid communication with the water outlet channel; the water inlet pipe positioned in the biological pond body is made of UPVC, and a one-pipe one-point type small-resistance water distribution system is adopted; the opening at the tail end of the water distribution pipe points to the bottom of the pool; the service area of each water distribution pipe is 4-9 square meters.
The gas backwashing system comprises a backwashing air pipe and an air inlet control valve, and the backwashing air main pipe is arranged on one side of the biological pond body, which is far away from the water inlet pipe; the biological pond is characterized in that four backwashing air branch pipes are arranged on the biological pond body at equal intervals, the distance between every two adjacent branch pipes is about 500-700 mm, the biological pond body is connected with an air main pipe, an air inlet control valve is arranged on the backwashing air main pipe, and a backwashing wastewater discharge control valve is arranged on the backwashing wastewater discharge pipe; the lower part of the backwashing air pipe, which is positioned on the liquid surface in the biological tank body, is made of UPVC or ABS; each grid of backwashing pipelines is arranged into a loop; the back washing branch pipe is a perforated pipe in the air distribution mode, the bottom of the branch pipe is inclined at 45 degrees and is perforated in a downward staggered mode, the aperture is phi 4mm, and the flow rate of an orifice is not more than 5m/s during air back washing
A filler bracket is arranged in the biological pond body, and biological filler is filled between the filler brackets; the total height of the biological filler region is not more than 3m, and the filler region is layered after the total height exceeds 3 m; the biological filler is a light suspended combined filler, the combined filler consists of two parts, the external part is a spherical suspended filler formed by injection molding of polypropylene or polyethylene, the diameter is 100mm or 60mm, the interior of a sphere is a modified polyurethane-based functionalized carrier, the size of the carrier is a cube of 25mm-35mm, and the porosity of the carrier is more than 95%; the filling rate of the combined filler in the biological filler area is not more than 75 percent. The biological filler mainly plays a role of a biological carrier and has the function of intercepting suspended matters. The biological filler can also adopt light soft fillers such as biochemical quick-separation balls, and the filling rate is not more than 75%. The filler support is composed of two parts, one is a support beam, which is generally a concrete structure or section steel. Secondly, the bracket adopts a PP porous plate or a glass fiber reinforced plastic grid and is directly fixed on the supporting beam
Biological pond body upper portion is equipped with backwash waste water drainage canal, biological pond body upper portion is installed and is led to backwash waste water drain pipe of canal fluid intercommunication with backwash waste water, and backwash waste water drain pipe deviates from outlet pipe one side.
Furthermore, the carbon source accurate adding control system comprises a water inlet online flowmeter, a feed-forward nitrate nitrogen online instrument, a post-feedback nitrate nitrogen online instrument, a pool dissolved oxygen online instrument, a control device and a variable-frequency carbon source adding pump.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a compound biological pond of denitrogenation, includes biological pond body, its characterized in that: the biological pond body consists of a water distribution system, a gas backwashing system, biological fillers, a filler bracket, a backwashing wastewater drainage channel, a backwashing wastewater drainage pipe and a carbon source accurate feeding control system;
the water distribution system comprises a water inlet pipe, water distribution pipes, a water outlet pipe and a water outlet channel, wherein the water inlet pipe communicated with the biological pond body is installed on one end face of the bottom of the biological pond body, the water distribution pipes are evenly and equidistantly arranged on the water inlet pipe positioned in the biological pond body, the water outlet channel is arranged at the upper part of the biological pond body, the water outlet pipe is installed at the side end of the upper part of the biological pond body, the water outlet pipe is distributed at one side deviating from the water inlet pipe, and the water outlet pipe can;
the gas backwashing system comprises a backwashing air pipe and an air inlet control valve, and the backwashing air pipe is arranged on one side of the biological pond body, which is far away from the water inlet pipe;
a filler bracket is arranged in the biological pond body, and biological filler is filled between the filler brackets;
biological pond body upper portion is equipped with backwash waste water drainage canal, biological pond body upper portion is installed and is led to backwash waste water drain pipe of canal fluid intercommunication with backwash waste water, and backwash waste water drain pipe deviates from outlet pipe one side.
2. The composite denitrification biological pond as recited in claim 1, wherein: the biological tank body can be in a concrete structure or a steel structure.
3. The composite denitrification biological pond as recited in claim 1, wherein: the biological pond is characterized in that a water inlet control valve is installed on the biological pond body, a water outlet control valve is installed on the water outlet pipe, the water inlet pipe is communicated with the water distribution pipe through a fluid, and the outlet of the water distribution pipe is directed at the bottom of the biological pond body.
4. The composite denitrification biological pond as recited in claim 1, wherein: the biological pond is characterized in that four backwashing air branch pipes are arranged on the biological pond body and distributed at equal intervals, the branch pipes are connected to a main pipe, an air inlet control valve is installed on the backwashing air main pipe, and a backwashing wastewater discharge control valve is installed on the backwashing wastewater discharge pipe.
5. The composite denitrification biological pond as recited in claim 1, wherein: the carbon source accurate adding control system comprises a water inlet online flowmeter, a feed-forward nitrate nitrogen online instrument, a post-feedback nitrate nitrogen online instrument, a pool dissolved oxygen online instrument, a control device and a variable-frequency carbon source adding pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020105799.1U CN211946462U (en) | 2020-01-17 | 2020-01-17 | Composite denitrification biological pond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020105799.1U CN211946462U (en) | 2020-01-17 | 2020-01-17 | Composite denitrification biological pond |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211946462U true CN211946462U (en) | 2020-11-17 |
Family
ID=73174165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020105799.1U Active CN211946462U (en) | 2020-01-17 | 2020-01-17 | Composite denitrification biological pond |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211946462U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113135616A (en) * | 2020-01-17 | 2021-07-20 | 北京弘昇达环境科技有限公司 | Composite denitrification biological pond |
-
2020
- 2020-01-17 CN CN202020105799.1U patent/CN211946462U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113135616A (en) * | 2020-01-17 | 2021-07-20 | 北京弘昇达环境科技有限公司 | Composite denitrification biological pond |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108163965B (en) | Fixed bed biological film contained micro-electrolysis deep denitrification and dephosphorization cabin | |
| CN107879472B (en) | Sewage treatment device and method | |
| CN105060460A (en) | Layered biological filter for removing nitrogen and phosphorus | |
| CN204162577U (en) | Integration enamel assembling tank body waste disposal plant | |
| CN214528587U (en) | Rural domestic sewage treatment system of nitrogen and phosphorus removal integration | |
| CN218910039U (en) | Efficient mud membrane symbiotic denitrification and dephosphorization sewage treatment system | |
| CN105084650A (en) | Microaeration circulation integrated sewage biological ecological processing system and method | |
| CN211946462U (en) | Composite denitrification biological pond | |
| CN205011588U (en) | Waters sewage treatment plant | |
| CN203768187U (en) | Continuous loop aerated domestic sewage treatment device | |
| CN203486968U (en) | Sewage treatment reaction pool | |
| CN113135616A (en) | Composite denitrification biological pond | |
| CN209906446U (en) | Integrated sewage advanced treatment device based on circular tank body | |
| CN217265052U (en) | Biochemical tower with high-efficiency cyclone aerator and settling tank | |
| CN211814035U (en) | Integrated sewage treatment equipment | |
| CN104743671A (en) | Vertical tube denitrification filler device | |
| CN212982574U (en) | Improved upflow denitrification reactor | |
| CN114516707A (en) | Biological treatment system device for wastewater | |
| CN210457647U (en) | Sewage treatment device | |
| CN210065318U (en) | Integrated sewage treatment equipment | |
| CN109942149A (en) | A kind of MIO-MBBR integrated sewage treating apparatus and its technique | |
| CN111302494A (en) | Deep bed multiplication MBBR reactor for town sewage treatment | |
| CN206512077U (en) | A kind of combination filter tank that mark transformation is proposed for sewage plant | |
| CN215559724U (en) | GSAO jar integration sewage treatment device | |
| CN220723802U (en) | Bamboo tube type biomembrane reactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |