CN213012184U - UASB waste water anaerobic reactor - Google Patents
UASB waste water anaerobic reactor Download PDFInfo
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- CN213012184U CN213012184U CN202021103081.5U CN202021103081U CN213012184U CN 213012184 U CN213012184 U CN 213012184U CN 202021103081 U CN202021103081 U CN 202021103081U CN 213012184 U CN213012184 U CN 213012184U
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Abstract
The utility model provides a UASB waste water anaerobic reactor, including a retort, the retort upper end is equipped with a marsh gas and collects mouth and a waste water delivery port, the retort top is provided with a pulse water-locator, sets gradually under from the top three-phase separator, suspension district, mud district and a water distribution system in the retort, the pulse water-locator with water distribution headtotail, the retort lower extreme is external to have a water pump, the water inlet of water pump with three-phase separator lower extreme intercommunication, the water pump with the water distribution system reaches three-phase separator below constitutes a waste water inner loop, pulse water-locator upper end is equipped with a waste water inlet. The utility model discloses an optimize water distribution system architecture and waste water circulation, reduced the short stream phenomenon, increased rivers and washed out the water distribution system and made impact force and coverage, guaranteed the organic matter in the waste water and mud abundant contact reaction, improved treatment load and shock resistance load capacity.
Description
Technical Field
The utility model relates to a waste water treatment technical field especially relates to a UASB waste water anaerobic reactor.
Background
Anaerobic biological treatment utilizes the metabolism of anaerobic microorganisms, reduced organic matters are used as hydrogen acceptors under the condition of not providing exogenous energy, and methane gas with energy value is generated at the same time, so that the anaerobic biological treatment is suitable for organic wastewater treatment, and the wastewater is recycled. As a technology capable of converting pollutants in sewage into renewable clean energy, namely biogas, an Upflow Anaerobic Sludge Blanket (UASB) process can be suitable for the treatment of sewage with different solid contents, has the advantages of simple structure, convenient operation and relatively low manufacturing cost, is increasingly emphasized by the sewage treatment industry, and has wide application. However, the UASB technology in the prior art still has some defects.
1) The flow state of water flow in UASB is complicated, because of the result of gas production, a rising gas flow is formed in the reactor, and partial muddy water mixed liquid is driven to move upwards, meanwhile, the medium around the gas flow and the water flow moves downwards to cause reverse mixing, the flow state causes short flow of water, and dead corners are easily formed at places far away from the rising gas flow and the water flow. Therefore, reasonable water inlet and distribution modes are needed for stable operation of the UASB system, and the problems of nonuniform water distribution, blockage and the like easily occur in the UASB in actual engineering.
2) The impact load resistance is weak.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects, the utility model provides a UASB waste water anaerobic reactor with few dead angles and strong impact load resistance capability at high treatment load wing.
For reaching this purpose, the utility model provides a UASB waste water anaerobic reactor, including a retort, the retort upper end is equipped with a marsh gas and collects mouth and a waste water delivery port, the retort top is provided with a pulse water distributor, sets gradually under to from last three-phase separator, suspension district, mud district and a water distribution system in the retort, the pulse water distributor with water distribution headtotail, the retort lower extreme is external to have a water pump, the water inlet of water pump with three-phase separator lower extreme intercommunication, the water pump with the retort constitutes a waste water inner loop, pulse water distributor upper end is equipped with a waste water inlet.
Preferably, the top of the reaction tank is provided with an effluent weir, and the wastewater outlet is communicated with the effluent weir.
Preferably, the water replenishing system comprises a star-shaped water distributor, and a preset number of water distribution pipes are circumferentially arranged on the star-shaped water distributor.
Further preferably, the diameters of the water distribution pipes are reduced from the center of the star-shaped water distributor to the outside in sequence.
Preferably, the water distribution pipes are uniformly provided with a predetermined number of water distribution holes, and the diameters of the water distribution holes are sequentially reduced from the center to the outside of the star-shaped water distributor.
Further preferably, the water distribution pipes are arranged in an inclined manner, and one end of each water distribution pipe close to the central water inlet of the star-shaped water distributor is lower than one end of each water distribution pipe far away from the central water inlet of the star-shaped water distributor.
The utility model discloses following beneficial effect has: the utility model has the advantages that by optimizing the structure of the water distribution system and the wastewater circulation, the problem that the wastewater cannot be in full contact reaction with the sludge due to the short flow phenomenon caused by insufficient pressure at the rear end is avoided, and simultaneously, the impact force and the coverage range caused by the fact that water flows rush out of the water distribution system are increased, so that organic matters in the wastewater are in full contact reaction with the sludge, the reaction efficiency and effect are improved, and the treatment load is high; the internal circulation of the wastewater is increased, so that the concentration of organic matters at the bottom of the reaction tank is reduced, the impact load resistance of the reactor is improved, simultaneously, the bottom sludge is expanded due to the large water amount, the full contact reaction of the organic matters in the wastewater and microorganisms is ensured, and the treatment load is improved.
Drawings
FIG. 1 is a schematic structural view of a UASB wastewater anaerobic reactor provided by the present invention.
Detailed Description
The embodiments described below are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1
Referring to fig. 1, the embodiment provides a UASB anaerobic wastewater reactor, including a retort 1, retort 1 upper end is equipped with a marsh gas and collects mouth 11 and a waste water outlet 12, the top is equipped with an play weir 2 in retort 1, waste water outlet 12 with play weir 2 intercommunication. The reactor is characterized in that a pulse water distributor 3 is arranged above the reaction tank 1, a wastewater inlet 31 is formed in the upper end of the pulse water distributor 3, a three-phase separator 4, a suspension zone 5, a sludge zone 6 and a water distribution system are sequentially arranged in the reaction tank 1 from top to bottom, the water distribution system comprises a star-shaped water distributor 7, and a preset number of water distribution pipes 71 are circumferentially arranged on the star-shaped water distributor 7. The pulse water distributor 3 is communicated with a central water inlet of the star-shaped water distributor 7. The water distribution pipes 71 are arranged obliquely, and one end of each water distribution pipe close to the central water inlet of the star-shaped water distributor 7 is lower than one end of each water distribution pipe far away from the central water inlet of the star-shaped water distributor 7. The diameters of the water distribution pipes 71 are reduced from the central water inlet of the star-shaped water distributor 7 to the outside in sequence. The water distribution pipes 71 are uniformly provided with a predetermined number of water distribution holes, and the diameters of the water distribution holes are sequentially increased from the central water inlet to the outer side of the star-shaped water distributor 7. The pulse water distributor 3 is arranged above the reaction tank 1, wastewater flows from a high position to a low position and is superposed under the action of gravity, so that the impact force generated when the wastewater is distributed from the central water inlet of the star-shaped water distributor 7 to the water distribution pipes 71 on the periphery is increased, the impact force generated when the water is flushed out of the water distribution pipes 71 is further enhanced, the wastewater is in full contact reaction with sludge, and the treatment load is increased; in addition, in the prior art, because the water distribution pipes 71 are long and water flows are not cut off, the pressure at the rear ends of the water distribution pipes 71 is insufficient, so that a short flow phenomenon occurs, wastewater cannot fully contact and react with sludge, most of the water distribution pipes 71 or water distribution plates are horizontally arranged in the reaction tank 1, water flows vertically and straightly flow out, the flowing range of wastewater is small, dead corners are easily formed at places far away from ascending gas and water flows, so that the reaction efficiency and the quality are low, the diameters of the water distribution pipes 71 from the center to the outer side of the star-shaped water distributor 7 are sequentially reduced, so that the rear end pressure is increased, the short flow phenomenon caused by the insufficient rear end pressure is avoided, the reaction efficiency and the reaction effect are improved, and similarly, the pressure required for flushing the rear end water flows is reduced by sequentially reducing the diameters of the water distribution holes from the center to the outer side of the star-shaped water distributor 7, so that the short flow phenomenon caused by the insufficient rear, the reaction efficiency and effect are improved, the water distribution pipe 71 is obliquely arranged, so that water flow is obliquely flushed out, and the water flow coverage is increased, so that the contact reaction rate of waste water and sludge is increased, the reaction dead angle is reduced, the reaction efficiency and effect are increased, and the treatment load is improved.
The water distribution system is externally connected with a water pump 8, a water inlet of the water pump 8 is communicated with the lower end of the three-phase separator, a water outlet of the water pump 8 is communicated with the lower end of the reaction tank 1, and the water pump 8 and the reaction tank 1 form a waste water internal circulation 9. Circulating water with the intaking that waste water inlet 31 got into is at 1 bottom intensive mixing of retort, makes 1 bottom organic matter concentration of retort reduces to improved the impact load resistance ability of reactor, the while heavy water yield also makes bottom mud can expand, has guaranteed the organic matter in the waste water and the abundant contact reaction of microorganism, has improved the treatment load.
The utility model has the advantages that by optimizing the structure of the water distribution system and the wastewater circulation, the problem that the wastewater cannot be in full contact reaction with the sludge due to the short flow phenomenon caused by insufficient pressure at the rear end is avoided, and simultaneously, the impact force and the coverage range caused by the fact that the water flow rushes out of the non-sleep system are increased, so that the organic matters in the wastewater are in full contact reaction with the sludge, the reaction efficiency and effect are improved, and the treatment load is high; the waste water internal circulation is increased, so that the concentration of organic matters at the bottom of the reaction tank 1 is reduced, the impact load resistance of the reactor is improved, simultaneously, the bottom sludge is expanded due to the large water volume, the full contact reaction of the organic matters in the waste water and microorganisms is ensured, and the treatment load is improved.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the scope of the invention, which is defined by the appended claims.
Claims (6)
1. The utility model provides a UASB waste water anaerobic reactor, includes a retort, the retort upper end is equipped with a marsh gas and collects mouth and a waste water delivery port, a serial communication port, the retort top is provided with a pulse water-locator, sets gradually under to from last triphase separator, suspension district, mud district and a water distribution system in the retort, the pulse water-locator with water distribution headtotail, the retort lower extreme is external to have a water pump, the water inlet of water pump with triphase separator lower extreme intercommunication, the water pump with water distribution system reaches triphase separator below constitutes a waste water inner loop, pulse water-locator upper end is equipped with a waste water inlet.
2. The UASB anaerobic wastewater reactor according to claim 1, wherein the top of the reactor tank is provided with an effluent weir, and the wastewater outlet is communicated with the effluent weir.
3. The UASB anaerobic wastewater reactor according to claim 1, wherein the water distribution system comprises a star-type water distributor having a predetermined number of water distribution pipes circumferentially provided thereon.
4. The UASB anaerobic wastewater reactor according to claim 3, wherein the water distributor is reduced in diameter from the center of the star-shaped water distributor to the outside in sequence.
5. The UASB anaerobic wastewater reactor according to claim 3, wherein the water distribution pipes are uniformly provided with a predetermined number of water distribution holes, and the diameters of the water distribution holes decrease from the center to the outside of the star-shaped water distributor.
6. The UASB anaerobic wastewater reactor according to claim 3, wherein the water distributor is inclined such that the end of the water distributor close to the central water inlet of the star-shaped water distributor is lower than the end of the water distributor far away from the central water inlet of the star-shaped water distributor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021103081.5U CN213012184U (en) | 2020-06-15 | 2020-06-15 | UASB waste water anaerobic reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021103081.5U CN213012184U (en) | 2020-06-15 | 2020-06-15 | UASB waste water anaerobic reactor |
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| Publication Number | Publication Date |
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| CN213012184U true CN213012184U (en) | 2021-04-20 |
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| CN202021103081.5U Active CN213012184U (en) | 2020-06-15 | 2020-06-15 | UASB waste water anaerobic reactor |
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