CN201077804Y - Intrinsic cycle anaerobic flow equalizing double reaction tower - Google Patents

Intrinsic cycle anaerobic flow equalizing double reaction tower Download PDF

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Publication number
CN201077804Y
CN201077804Y CNU2007201047848U CN200720104784U CN201077804Y CN 201077804 Y CN201077804 Y CN 201077804Y CN U2007201047848 U CNU2007201047848 U CN U2007201047848U CN 200720104784 U CN200720104784 U CN 200720104784U CN 201077804 Y CN201077804 Y CN 201077804Y
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tower
gas
reaction
anaerobic
communicated
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CNU2007201047848U
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Chinese (zh)
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宁平
殷在飞
王学谦
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Kunming University of Science and Technology
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Kunming University of Science and Technology
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Abstract

The utility model relates to an internal circulating anaerobic uniform-flow dual-reactor, which comprises an internal circulating reaction tower and an upflow anaerobic tower. The utility model is characterized in that the internal circulating reaction tower and the upflow anaerobic tower are connected in series; the internal circulating reaction tower comprises a flow equalizer, a reaction bucket, a gas collecting hood, a gas-liquid separator, a sewage collecting channel and other members; the upflow anaerobic tower comprises a water distributor, an anaerobic bucket, a three-phase separator, a settling bucket, a water collecting channel and other members; wastewater enters into a hydrocyclone from an water inlet pipe in the tangent direction via a nozzle, fully mixed with returned sludge from the gas-liquid separator, and distributed in a reaction zone, thereby enabling the internal circulation of the mixed liquid; after the reaction and gas-liquid separation in a first tower, wastewater enters into the upflow anaerobic tower for anaerobic reaction via a connecting hose of the two towers, then the wastewater treatment is completed. The utility model has the advantages of high concentration of the sludge in the reaction tower, large amount of microorganism, capability of internal circulation, even distribution of the sludge, good mass transfer effect, and high COD concentration of treated wastewater over 10000mg/L.

Description

The two reaction towers of internal circulating anaerobic current-sharing
One, technical field:
The utility model belongs to a kind of chemical technique device of sewage treatment area.
Two, background technology
The characteristic feature of anaerobic biological treatment technology is that processing power is big, and energy consumption is low, is easy to control etc., is extensively accepted by people.The s-generation anaerobic biological treatment technology that occurs from traditional anaerobism contact process to the seventies in 20th century has quite high volumetric loading, stable operation, and reactor volume is little, characteristics such as reduced investment.Along with the development of producing, the high concentrated organic wastewater that increases is gradually handled a difficult problem that has become the puzzlement people, and contradictions such as resource, energy consumption, occupation of land also become outstanding, and the anaerobic treatment technology that continuation research and development technology economy is more optimized just seems and necessitates.Third generation anaerobic biological treatment technology, when pushing away internal-circulation anaerobic reactor (being called for short the IC reactor), come down to two reactors are stacked, be characterized in: microorganism is present in the reactor with the granule sludge fixed form, sludge concentration is very high, and volumetric loading is very high; Has higher purification efficiency; Has bigger aspect ratio, generally 3~5 or higher; Floor space is little.
Internal-circulation anaerobic reactor makes internal-circulation anaerobic reactor that very high processing capacity be arranged because the COD volumetric loading increases substantially, and also has many problems simultaneously:
(1) anaerobic treatment is a kind of method of biological wastewater treatment, improve the speed and the efficient of anaerobic treatment, just must provide microorganism a suitable growing environment, keep having in the reactor mud of high density, also need a good mass transfer process simultaneously, promptly waste water must have the chance that fully contacts with mud, organism could react with microorganism, improves treatment of organic matters of organic efficient.In the internal-circulation anaerobic reactor, waste water and mud also lack this contact conditions, cause waste water treatment efficiency undesirable.
(2) the internal-circulation anaerobic reactor internal structure is very complicated, design requirements height, constructional difficulties.The reactor aspect ratio is big, and this has just brought two large problems: 1. increase the power of intake pump, improved working cost, the superiority of original anaerobic treatment maximum is exactly that energy consumption is low, and the anaerobic treatment energy consumption just this, therefore, the superiority that the anaerobic treatment energy consumption is low has been lost; 2. because internal-circulation anaerobic reactor, moves heavy every m up to 18~25m 2Area up to 20 tons~26 tons, this has just substantially exceeded earth bearing strength, even Equipment Foundations also will be handled under the reasonable situation of geologic condition, investment cost increases, this is difficult to accept to general sewage disposal enterprise, applies just to have run into difficulty.
(3) in anaerobic reaction, exist substantial connection between organic loading, gas production rate and the degree of treatment three.Especially for high concentrated organic wastewater, because anaerobic reaction, waste water PH descends very big, has reached the degree that microorganism can not be born at last, and internal-circulation anaerobic reactor just is difficult to regulate, and this has just limited the range of application of IC reactor.
The utility model has carried out deep research to the inherent laws of internal circulating anaerobic reactor for treatment technology, and in conjunction with engineering practice, the problem at existing internal-circulation anaerobic reactor exists has proposed to improve one's methods, and makes this technology more perfect.
Three, technology contents
The utility model provides the two reaction towers of a kind of internal circulating anaerobic current-sharing, reactor is divided into two independently reaction towers, connected by internal recycle reaction tower and upper reaches anaerobism tower and to bring into play separately advantage, reaching increases rate of mass transfer, improves sewage treating efficiency, uses more extensive purpose.
Fig. 1 is a composition structure iron of the present utility model, is connected by internal recycle reaction tower A and upper reaches anaerobism tower B and realizes.
The internal recycle reaction tower A comprises current equalizer 1, reaction container 2, gas collection cap 3, gas-liquid separator 4, sewage collecting canal 5, waste water inlet pipe 12 and mud return line 13; Upper reaches anaerobism tower B comprises water distributor 6, anaerobism bucket 7, triphase separator 8, settling box 9, braiding channel 10 and wastewater effluent pipe 16; Also comprise joint outer part sludge pump 11, double tower communicating pipe 14 and sludge pipe 15.The current equalizer structure as shown in Figure 2, it comprises swirler 17, float valve 18 and nozzle 19.Current equalizer 1 is arranged at the bottom of internal recycle reaction tower A, the heart is provided with a mud return line 13 and is communicated with the gas-liquid separator 4 that is arranged at internal recycle reaction tower top therein, gas collection cap 3 is arranged at internal recycle reaction tower top and is communicated with sewage collecting canal 5, water inlet pipe 12 enters swirler by a nozzle 18 from tangential direction, sewage collecting canal 5 by entering upper reaches anaerobism tower B double tower communicating pipe 14 the bottom and be communicated with water distributor 6, triphase separator 8 is arranged at the top of the upper reaches anaerobism tower B that is lower than gas collection cap 3 positions, it is communicated with gas collection cap 3, settling box 9 is between triphase separator and braiding channel, wastewater effluent pipe 16 is communicated with braiding channel 10, sludge pump 11 is arranged at outer its of two towers and is communicated with gas-liquid separator 4 with sludge pipe 15, and several float valves 18 are distributed on the current equalizer.
The design's principle of work: wastewater inlet pipe enters swirler by a nozzle from tangential direction, the returned sluge thorough mixing next with gas-liquid separator, equably mud mixture is distributed in the reaction zone by float valve then, impel waste water fully to contact with mud granule, the formed mud mixture of current equalizer enters reaction container equably, under the high concentration sludge effect, most of organism is converted into biogas, the mixed solution upwelling is under the fierceness of biogas is stirred, make the interior mud of this reaction container be swollen Swelling and fluidized state, strengthened the muddy water surface in contact, mud keeps higher activity therefrom.Along with increasing of biogas output, a part mud mixture by biogas-lift to the gas-liquid separator of Top portion, mixture that is raised and biogas are thus lifted in the gas-liquid separator in collecting hood, Ni water Hun He Wu The turns back to bottom current equalizer along return line, has realized the internal recycling of mixed solution.After separating admittedly, first tower reaction and gas-liquid enter the water distributor of second tower (upper reaches anaerobism tower) by the double tower pipe connecting by the wastewater collection canal, equably waste water is distributed in anaerobic zone and carries out second-stage treatment, COD further is degraded, the reacted mud of anaerobic zone, the gentle triphase separator that enters of water, enter gas-liquid separator behind the collecting methane, mud mixture carries out solid-liquid separation in the settling region, supernatant liquor is drained from rising pipe after evenly being collected by braiding channel, and sedimentary granule sludge returns in the second anaerobic zone Sludge Bed.
Compare with known technology and the utility model has the advantages that:
(1) volumetric loading height: sludge concentration height in the reaction tower, microbial biomass is big, and has internal recycle, the mud uniform distribution, mass transfer effect is good.
(2) handle waste water COD concentration height: owing to be divided into two towers, operational condition can be controlled, flexible operation, and COD concentration can reach more than the 10000mg/L, handles very skillfully.
(3) inner automated cycle, needn't additionaling power: common anaerobic reactor will keep certain flow velocity, to realize fluidization, be to realize round-robin, and the two reaction towers of this IC current-sharing are realized the mixed solution internal recycle with the natural pond Gas that Zi Shen Productivity gives birth to as the power that promotes, and needn't establish recycle pump by external pressurized, saved power consumption, reaction tower is lower simultaneously, and the water inlet power consumption is few, has really carried out less energy-consumption.
(4) stable water outlet is good: utilize two Grade reaction towers to divide Grade anaerobic treatment, prolong the biological residence time, the roof is carried out in reaction, the convenient adjusting, and decontamination effect improving is better, and stable water outlet is better.
(5) start-up period is short: sludge activity height in the IC reactor, biological propagation is fast, provides favourable condition for reactor starts fast.
(6) because the tower height degree reduces by one times, every m 2The area loading has only 10 tons, and less than general requirement to earth bearing strength, the based process ratio is easier to less investment.
Four, description of drawings: Fig. 1 is a composition structure iron of the present utility model, and 1 is current equalizer among the figure, the 2nd, and reaction container, the 3rd, gas collection cap, the 4th, gas-liquid separator, the 5th, sewage collecting canal, the 6th, water distributor, the 7th, anaerobism bucket, the 8th, triphase separator, the 9th, settling box, the 10th, braiding channel, the 11st, sludge pump, the 12nd, waste water inlet pipe, the 13rd, mud return line, 14 double tower communicating pipe, 15 is sludge pipe, the 16th, and the wastewater effluent pipe.Fig. 2 is the composition structure iron of current equalizer, and 17 is swirlers, the 18th among the figure, float valve, the 19th, nozzle.
Five, embodiment:
Below in conjunction with its Fig. 1, utility model is further specified.
Embodiment: connect by internal recycle reaction tower A and upper reaches anaerobism tower B and to realize.
The internal recycle reaction tower A comprises current equalizer 1, reaction container 2, gas collection cap 3, gas-liquid separator 4, sewage collecting canal 5, waste water inlet pipe 12 and mud return line 13; Upper reaches anaerobism tower B comprises water distributor 6, anaerobism bucket 7, triphase separator 8, settling box 9, braiding channel 10 and wastewater effluent pipe 16; Also comprise joint outer part sludge pump 11, double tower communicating pipe 14 and sludge pipe 15.The current equalizer structure as shown in Figure 2, it comprises swirler 17, float valve 18 and nozzle 19.Current equalizer 1 is arranged at the bottom of internal recycle reaction tower A, the heart is provided with a mud return line 13 and is communicated with the gas-liquid separator 4 that is arranged at internal recycle reaction tower top therein, gas collection cap 3 is arranged at internal recycle reaction tower top and is communicated with sewage collecting canal 5, water inlet pipe 12 enters swirler by a nozzle 18 from tangential direction, sewage collecting canal 5 by entering upper reaches anaerobism tower B double tower communicating pipe 14 the bottom and be communicated with water distributor 6, triphase separator 8 is arranged at the top of the upper reaches anaerobism tower B that is lower than gas collection cap 3 positions, it is communicated with gas collection cap 3, settling box 9 is between triphase separator and braiding channel, wastewater effluent pipe 16 is communicated with braiding channel 10, sludge pump 11 is arranged at outer its of two towers and is communicated with gas-liquid separator 4 with sludge pipe 15, and several float valves 18 are distributed on the current equalizer.
Processing power 5000 ton per day beer waste waters, COD concentration 2000mg/L, the first tower height diameter 6.5m, tower height 10.5m, the second tower diameter 6.5m, tower height 9m, water outlet COD300mg/L, COD removes efficient 85%.

Claims (1)

1. two reaction towers of an internal circulating anaerobic current-sharing, it is characterized in that: it is connected by internal recycle reaction tower A and upper reaches anaerobism tower B and realizes, the internal recycle reaction tower A comprises current equalizer (1), reaction container (2), gas collection cap (3), gas-liquid separator (4), sewage collecting canal (5), waste water inlet pipe (12) and mud return line (13), upper reaches anaerobism tower B comprises water distributor (6), anaerobism bucket (7), triphase separator (8), settling box (9), braiding channel (10) and wastewater effluent pipe (16), also comprise joint outer part sludge pump (11), double tower communicating pipe (14) and sludge pipe (15), current equalizer comprises swirler (17), float valve (18) and nozzle (19), current equalizer (1) is arranged at the bottom of internal recycle reaction tower A, the heart is provided with a mud return line (13) and is communicated with the gas-liquid separator that is arranged at internal recycle reaction tower top (4) therein, gas collection cap (3) is arranged at internal recycle reaction tower top and is communicated with sewage collecting canal (5), water inlet pipe (12) enters swirler by a nozzle (18) from tangential direction, sewage collecting canal (5) by entering upper reaches anaerobism tower B double tower communicating pipe (14) the bottom and be communicated with water distributor (6), triphase separator (8) is arranged at the top of the upper reaches anaerobism tower B that is lower than gas collection cap (3) position, it is communicated with gas collection cap (3), settling box (9) is between triphase separator and braiding channel, wastewater effluent pipe (16) is communicated with braiding channel (10), sludge pump (11) is arranged at outside two towers, it is communicated with gas-liquid separator (4) with sludge pipe (15), and several float valves (18) are distributed on the current equalizer.
CNU2007201047848U 2007-07-10 2007-07-10 Intrinsic cycle anaerobic flow equalizing double reaction tower Expired - Fee Related CN201077804Y (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105879822A (en) * 2016-06-20 2016-08-24 长沙华时捷环保科技发展股份有限公司 Rotational flow and turbulent flow reaction device for wastewater treatment
CN107311422A (en) * 2017-08-11 2017-11-03 江苏浦坤纳米科技有限公司 A kind of sludge reduction reaction system and processing method
CN109437496A (en) * 2018-12-29 2019-03-08 科盛环保科技股份有限公司 A kind of energy-saving Treatment of Beer Wastewater system
CN112209504A (en) * 2020-09-21 2021-01-12 世纪华扬环境工程有限公司 Spiral-flow type bioreactor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105879822A (en) * 2016-06-20 2016-08-24 长沙华时捷环保科技发展股份有限公司 Rotational flow and turbulent flow reaction device for wastewater treatment
CN107311422A (en) * 2017-08-11 2017-11-03 江苏浦坤纳米科技有限公司 A kind of sludge reduction reaction system and processing method
CN109437496A (en) * 2018-12-29 2019-03-08 科盛环保科技股份有限公司 A kind of energy-saving Treatment of Beer Wastewater system
CN109437496B (en) * 2018-12-29 2019-08-20 科盛环保科技股份有限公司 A kind of energy-saving Treatment of Beer Wastewater system
CN112209504A (en) * 2020-09-21 2021-01-12 世纪华扬环境工程有限公司 Spiral-flow type bioreactor
CN112209504B (en) * 2020-09-21 2023-01-17 世纪华扬环境工程有限公司 Spiral-flow type bioreactor

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Granted publication date: 20080625

Termination date: 20110710