CN201424414Y - Self-circulation anaerobic reactor and sewage disposal device employing same - Google Patents
Self-circulation anaerobic reactor and sewage disposal device employing same Download PDFInfo
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- CN201424414Y CN201424414Y CN2009200538822U CN200920053882U CN201424414Y CN 201424414 Y CN201424414 Y CN 201424414Y CN 2009200538822 U CN2009200538822 U CN 2009200538822U CN 200920053882 U CN200920053882 U CN 200920053882U CN 201424414 Y CN201424414 Y CN 201424414Y
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Abstract
The utility model discloses a self-circulation anaerobic reactor and a sewage disposal device employing the reactor. A primary three-phase separator and a secondary three-phase separator are sequentially arranged in the self-circulation anaerobic reactor from bottom to top; the interior of the reactor can be divided into a first reaction chamber, a second reaction chamber and a sedimentation areafrom bottom to top; the top part of the reactor is provided with a pulse mud distribution tank, wherein the interior of the pulse mud distribution tank is communicated with the inner cavity of the first reaction chamber by a main mud feeding pipe; the tip of the main mud feeding pipe in the pulse mud distribution tank takes the reversed-U shape, and the upper part of the end port of the main mud feeding pipe is provided with a siphon pipe. The disposal device comprises an aeration tank and a sedimentation tank, wherein the aeration tank is communicated with the sedimentation area of the self-circulation anaerobic reactor by a sludge recirculation pipe; and the sedimentation tank is communicated with the pulse mud distribution tank of the self-circulation anaerobic reactor by a sludge waterinlet pipe. The utility model has the advantages that the self-circulation anaerobic reactor and the sewage disposal device can be used for sludge anaerobic disposal, improves the sludge disposal efficiency and shortens the hydraulic retention time; moreover, the construction cost is not high, the running cost is lowered, and the sludge reduction effect is obvious.
Description
Technical field
The utility model relates to a kind of sewage disposal device and device, especially relates to self-circulation type anaerobic reactor and waste disposal plant.
Background technology
The 25%-65% that required investment and working cost can account for investment of entire sewage treatment plant and working cost is handled and disposed to excess sludge, become a great problem that biological wastewater treatment technology faces.The treatment scheme in high mud age is often used in the growth that reduces mud, but this treatment scheme can cause sludge settling property to worsen, and increases the aeration cost.If in the mud reflux section, add chemistry (ozone, acid or alkali) or physics (thermal treatment, ultrasonication or mechanical treatment) processing unit, excess sludge can reduce more than 60%, even can remove fully, but chemistry or physical treatment is with high costs, can increase aeration tank organic loading and aeration energy consumption simultaneously, influence the practicality of technology.Other has a kind of method is to add uncoupling agents, controlling microbial metabolism, thereby reach the purpose of excess sludge reduction, reduction rate is at 50%-80%, and energy consumption level is low, but the uncoupling agents that this method added may cause the over-drastic toxic action to microorganism, influences the Pollutant Treatment performance of technology itself, uncoupling agents need be made a big purchase in large quantities in addition, has increased running cost.Therefore exploitation does not reduce (influence) wastewater treatment efficiency, realizes the minimized biological process of wastewater treatment of surplus sludge volume, is to solve the comparatively ideal approach of mud problem in the sewage biochemical processing process.
Occurred at present a kind of aerobic-waste disposal plant of precipitation-anaerobism (OSA) technology, its OSA device essence is made up of a sludge anaerobic pond of the aeration tank in the conventional activated sludge process and settling tank and between insertion, the mud of settling tank bottom is extracted out and is entered in the anaerobic pond, under anaerobic react for some time, then the muddy water mixed solution in the anaerobic pond is mended in the aeration tank, realized aerobic-precipitation-anaerobic circulation.This mode, promptly do not need to carry out pre-treatment by physics or chemical means, do not need to add any chemical agent yet, can be under the prerequisite that does not influence effluent quality, can reduce the 20%-60% of excess sludge production, improved sludge settling property simultaneously, can transform, made that capital construction and running cost are lower traditional activated sludge process.For solve the sludge quantity that China increases substantially in the future in the future significance is arranged.
Because the OSA process sludge is anaerobic-aerobic coupled, protozoon and metazoan are very rare in the Aerobic Pond, so microorganism predation is considerably less to the influence of mud decrement.2 kinds of OSA mud decrement theories of main at present existence: a kind of theory thinks that OSA technology is by the theoretical mud decrement of realizing of energy uncoupling.Anaerobism---aerobic environment alternately in the OSA technology, make microorganism at aerobic stage by oxidation external source organic substrates synthetic ATP, can not be used for synthetic new cell, but be consumed at the energy that cell activities is kept in the conduct of anaerobism section.When microorganism gets back to the competent aerobic reactor of food, carry out margin of energy again, be used to keep the analytic metabolism of anaerobism section cell.This alternately aerobic---the anaerobism circulation stimulates microbiological degradation metabolism and anabolism to be separated, thereby reaches the effect of mud decrement; Another kind of mud attenuation theory is thought, anaerobic sludge concentration basin sludge concentration height in the OSA technology, and the residence time is long, and in the anaerobic sludge concentration basin mud decay, sludge hydrolytic or dissipation taking place is the major cause of OSA process sludge decrement.Aeration tank mud enters anaerobic environment, base consumption totally, aerobic microbiological is then because anoxic and death, anaerobism and double oxygen animalcule are in starvation, begin endogenous generation breathing.Microorganism is with mud flco even self a part of cellular material oxygenolysis, and the energy that the endogenous respiration metabolism produces is used for keeping every vital functions.Secular endogenous respiration meeting causes necrocytosis, causes the reduction of microorganism growth rate even the minimizing of biosolids amount, thereby has reached the effect of mud decrement.
Anaerobic reation pool is the key link of OSA process sludge decrement.Compare with the anaerobic zone of biological carbon and phosphorous removal function, OSA technology anaerobism section principal feature is the sludge concentration height, and the resolvability organic concentration is low.Mud after the process settling tank concentrates enters anaerobic pond, and sludge concentration is more than 2 times of traditional anaerobic zone sludge concentration; Easily the organism of aerobic degradation is degraded substantially through aeration tank and settling tank, makes that to enter the resolvability organic concentration of anaerobism section with mud quite low, therefore has significant mud relaxation phenomenon.
The common self-circulation type anaerobic reactor in sewage disposal technology (Self-Circulation, be called for short SC) be Dutch PAQUES company on the basis of s-generation anaerobic reactor (UASB) in 20th century third generation high efficiency anaerobic reactor succeeded in developing of the mid-80.Through ten years development, the SC reactor has been successfully applied to the processing of the high concentrated organic wastewater of industry such as industrial scale wastewater treatment, especially beer production, papermaking, food-processing, the citric acid of multiple industry.It is characterized in that in reactor, being equipped with the two-stage triphase separator, its inside is separated into first reaction chamber, second reaction chamber and settling region three parts from bottom to up, its inside also is provided with the self-circulation system of being made up of gas-lift tube and mud return line, reactor head is provided with gas-liquid separator, total system is similar to two UASB reactors in series operations, and lower part of reactor can be moved under high loading condiction.The organic loading of whole reactor and hydraulic load are also higher, and can realize the unpowered circulation of liquid internal, thereby have overcome the UASB reactor deficiency that granule sludge easily runs off under higher upwelling speed.And hydraulic detention time is short, and reactor volume is little.SC reactor maximum volume load can reach 20～40kgCOD/ (m
3D).70%～80% the organism of wherein intaking obtains degraded in the I chamber, a large amount of biogas of generation are collected the back by the one-level triphase separator and discharged reactor, can not produce very high gas upflow velocity in the II chamber, influences less to the loss of granule sludge.A large amount of biogas that first reaction chamber produces carry part first reaction chamber when rising mixed solution is promoted to the gas-liquid separator of SC reactor head, biogas is derived treatment system at this place with mud-water separation and quilt, mud mixture is then along return line Returning reactor bottom, and enter first reaction chamber behind the thorough mixing with water inlet, form internal recycle, improve SC reactor for treatment ability greatly.The firstth reaction chamber water outlet enters into second reaction chamber (precision processing district), and the liquid phase upflow velocity of second reaction chamber is 2-10m/h only, has guaranteed the further degraded to rest COD.The total organic removal rate of SC reactor can reach 85%-95%.Compare with other anaerobic reactors, the SC reactor have volumetric loading rate height, anti-shock loading strong, save and advantage such as take up an area of, stable, be very suitable for handling the poisonous waste water that contains high density, hardly degraded organic substance.But still do not find the SC reactor is used for the correlative study application report of sludge treatment so far.
Summary of the invention
The purpose of this utility model is to provide a kind of self-circulation type anaerobic reactor that can handle mud, its treatment effect height, and construction cost is low, and working cost is low.
Another purpose of the present utility model provides a kind of waste disposal plant that uses the self-circulation type anaerobic reactor, and the sludge reduction effect of this device is remarkable, convenient management, and working cost is low.
Technical solution of the present utility model is: a kind of self-circulation type anaerobic reactor, comprise inner one-level triphase separator and secondary triphase separator from setting gradually down, its inside is separated into first reaction chamber, second reaction chamber and settling region three parts from bottom to up, the settling region is provided with mud return line, be provided with its inside in this reactor head and advance the pulse cloth mud jar that the mud pipe communicates with the described first reaction chamber inner chamber by the master, which is provided with the mud water inlet pipe, the termination that master in pulse cloth mud jar advances the mud pipe is inverted U-shaped, and its port top is provided with siphon pipe.
Because the proportion of mud is greater than sewage, also than sewage thickness more, therefore the cloth drainage facility of depending merely on existing self-circulation type anaerobic reactor inside can't guarantee thorough mixing mud, therefore in reactor head a pulse cloth mud jar is set, behind a certain amount of mud of savings, advance disposable first reaction chamber that enters reactor of mud pipe by the master, wash away, realize the mixing of mud in reaction chamber by the stirring of mud.The termination that the master advances the mud pipe is inverted U-shaped, which is provided with siphon pipe, when mud is put aside certain altitude in the jar, by quick mobile mud in the siphon pipe air that the master advances in the mud pipe is taken away, portion forms negative pressure within it, and the mud in the cloth mud jar enters the master and advances in the mud pipe under the effect of barometric point, enter fast in first reaction chamber, form once cloth mud operation fast, be lower than mainly when entering mud tube inlet position when mud height in the cloth mud jar is reduced to, cloth mud finishes.Mud flow velocity height during cloth mud can fully stir the granule sludge in the reaction chamber like this, makes precipitating sludge contact with the granule sludge thorough mixing, the raising reaction efficiency.Whole cloth mud operation need not actuating unit, and simple in structure, cost is lower, and overall operating costs is less.
Described master in described first reaction chamber advances the mud pipe port and connects some cloth mud bend pipes, is respectively equipped with the water distribution disk of level below the outlet of each cloth mud bend pipe.After the main mud that advances in the mud pipe flows out downwards by cloth mud bend pipe, beat below the water distribution disk on because pulse mode makes that effusive mud speed is very fast, reflect through disk and to slop over the homogeneity that can fully improve cloth mud.
Another technical solution of the present invention is: a kind of waste disposal plant, comprise aeration tank and settling tank, with and inner from setting gradually one-level triphase separator and secondary triphase separator down, its inside is separated into first reaction chamber from bottom to up, the self-circulation type anaerobic reactor of second reaction chamber and settling region three parts, be provided with by leading the pulse cloth mud jar that the mud pipe communicates with the described first reaction chamber inner chamber at described self-circulation type anaerobic reactor top, this pulse cloth mud jar is provided with the mud water inlet pipe that is communicated with described settling tank, the termination that master in pulse cloth mud jar advances the mud pipe is inverted U-shaped, its port top is provided with siphon pipe, and described settling region is provided with the mud return line that is communicated with described aeration tank.
Part mud in the settling tank enters in the pulse cloth mud jar by the mud inlet pipe, enter the reactor internal reaction behind the savings certain altitude, muddy water mixed solution is after treatment extracted out from the settling region and is back in the aeration tank, make full use of can significantly degrade organic characteristic in the mud of self-circulation type anaerobic reactor, improve sludge treatment speed, whole device need not more power-equipment, and the hydraulic detention time that sludge treatment needs is shorter, and the installation and operation expense is lower.
Be provided with storage mud jar and mud lift pump between described settling tank and self-circulation type anaerobic reactor, described siphon pipe is communicated with this storage mud jar, and the import of mud lift pump is communicated with storage mud jar, and outlet is communicated with described mud water inlet pipe.Deposit the mud that settling tank is discharged by storage mud jar, use the control of mud lift pump to enter the interior sludge quantity of pulse cloth mud jar, convenient practical situation, flexible according to the operation of different sewage treatment process.
Ingress at described mud lift pump is provided with filter screen, can effectively remove bigger particle and inorganic substance, avoids the inner inorganic impurity accumulation of self-circulation type anaerobic reactor to influence treatment effect.
The utility model has the advantages that: can be used for the anaerobic treatment of mud, improve sludge treatment efficient, reduce hydraulic detention time, construction cost is not high, and working cost reduces, and the sludge reduction effect of entire sewage treatment unit is remarkable.
Description of drawings
Accompanying drawing 1 is the structural representation of sludge reduction treatment unit among the utility model embodiment;
Accompanying drawing 2 is the interior cloth water structure vertical view of reactor among the utility model embodiment;
1, the aeration tank, 2, settling tank, 3, the self-circulation type anaerobic reactor, 4, pulse cloth mud jar, 5, the master enters mud pipe, 6, cloth mud bend pipe, 7, the water distribution disk, 8, gas-lift tube, 9, gas-lift tube, 10, return line, 11, gas-liquid separator, 12, the one-level triphase separator, 13, the secondary triphase separator, 14, the settling region, 15, first reaction chamber, 16, second reaction chamber, 17, effuser, 18, filter screen, 19, mud return line, 20, the mud water inlet pipe, 21, storage mud jar, 22, the mud lift pump, 23, siphon pipe, 24, sewage, 25, water outlet, 26, aeration head.
Embodiment
Embodiment:
Consult Fig. 1, structural representation for a kind of waste disposal plant with the self-circulation type anaerobic reactor, comprise aeration tank 1 and settling tank 2, with and inner from setting gradually one-level triphase separator 12 and secondary triphase separator 13 down, its inside is separated into first reaction chamber 15 from bottom to up, the self-circulation type anaerobic reactor 3 of second reaction chamber 16 and settling region 14 3 parts, be provided with its inside in this reactor head and advance the pulse cloth mud jar 4 that mud pipe 5 communicates with described first reaction chamber, 15 inner chambers by the master, which is provided with mud water inlet pipe 20, the termination that master in pulse cloth mud jar 4 advances mud pipe 5 is inverted U-shaped, its port top is provided with siphon pipe 23, and described settling region 14 is provided with the mud return line 19 that is communicated with described aeration tank 1.Be provided with aeration head 26 in the aeration tank 1, after sewage 25 enters aeration tank 1, enter settling tank 2 precipitations through aeration, the supernatant liquor of settling tank 2 is discharged treatment unit from water outlet 25, the mud of settling tank 2 bottoms enters in the storage mud jar 21 by pipeline, the inlet of mud lift pump 22 is communicated with storage mud jar 21, and outlet is communicated with the mud water inlet pipe 20 of pulse cloth mud jar 4, and siphon pipe 23 is communicated with in the storage mud jar 21.The ingress of mud lift pump 22 is provided with filter screen 18.
Described master in described first reaction chamber 15 advances the port horizontal-extending of mud pipe 5, connects six cloth mud bend pipes 6 on it, as shown in Figure 2, is respectively equipped with the water distribution disk 7 of level below the outlet of each cloth mud bend pipe 6.To advance mud pipe 5 be circle to cloth mud bend pipe 6 with main, uniform distribution radially, and mud is become six strands by uniformly distributing respectively through cloth mud bend pipe 6, impacts water distribution disk 7 respectively, forms to reflect to slop over, and is implemented in the interior uniform distribution of first reaction chamber 15.
The mud of discharging in the settling tank 2, at first enter a storage mud groove 21, rise in the pulse cloth mud jar 4 through pump then, advancing mud pipe 5 by the master is driven in the self-circulation type anaerobic reactor 3, realize even cloth mud through self-circulation type anaerobic reactor bottom water distribution disk again, and behind the thorough mixing of mixing zone, enter the biochemical degradation that EGSB (expanded granular sludge bed) (first reaction chamber 15) is carried out COD with internal recycle muddy water mixed solution from return line 10, COD volumetric loading herein is very high, the COD of 70%-80% is degraded herein, and produces a large amount of biogas.One-level triphase separator 12 realizes that the solid-liquid gas of part separates, and biogas is collected by one-level triphase separator 12, and rises along gas-lift tube 8, and the big active higher granule sludge of density then is trapped, and gets back in first reaction chamber 15.Biogas carries part first reaction chamber when rising mixed solution is promoted in the gas-liquid separator 11 at self-circulation type anaerobic reactor 3 tops, and biogas is derived treatment system with mud-water separation from effuser 17 at this place.Mud mixture is then along return line 10 Returning reactors bottoms, and with the water inlet thorough mixing after enter first reaction chamber 15, form internal recycle.Internal recycle makes not only very high biomass in first reaction chamber, very long sludge age, and have very big up-flow speed, be generally 10-20m/h, make the granule sludge of this chamber reach fluidized state fully, thereby improve the organic ability in place to go of first reaction chamber 15 greatly.Through the mixed solution that first reaction chamber 15 was handled, can enter into second reaction chamber 16 automatically and continue to handle.The liquid upflow velocity of second reaction chamber 16 is generally 2-10m/h less than liquid upflow velocity in first reaction chamber 15.Residual organic substances in the mixed solution can further be degraded by the anaerobic grain sludge of second reaction chamber 15, strengthens the sludge reduction effect.This chamber is except proceeding the biochemical reaction degradation of organic substances, because this district's sludge concentration is low, organic loading is also lower, hydraulic detention time is longer, and internal recycle stream does not pass through this zone, and the stirring of air-flow is little, microorganism occurred and has stopped and the laminar flow environment, therefore also serve as the breeze way between first reaction chamber 15 and the settling region 14, to preventing sludge loss and guaranteeing that the effluent quality of post precipitation plays an important role.The biogas that second reaction chamber 16 produces is collected by secondary triphase separator 13, enters gas-liquid separator 11 by gas-lift tube 9.The mixed solution of second reaction chamber 16 14 carries out solid-liquid separation in the settling region, and sedimentary highly active granule sludge is got back to second reaction chamber 16.
Above-listed detailed description is specifying at one of the utility model possible embodiments, this embodiment is not in order to limit claim of the present utility model, allly do not break away from the equivalence that the utility model does and implement or change, all should be contained in the claim of this case.
Claims (5)
1, a kind of self-circulation type anaerobic reactor, comprise inner one-level triphase separator and secondary triphase separator from setting gradually down, its inside is separated into first reaction chamber, second reaction chamber and settling region three parts from bottom to up, the settling region is provided with mud return line, it is characterized in that: be provided with by the master in this reactor head and advance the pulse cloth mud jar that the mud pipe communicates with the described first reaction chamber inner chamber, which is provided with the mud water inlet pipe, the termination that master in pulse cloth mud jar advances the mud pipe is inverted U-shaped, and its port top is provided with siphon pipe.
2, a kind of self-circulation type anaerobic reactor according to claim 1 is characterized in that: the described master in described first reaction chamber advances the mud pipe port and connects some cloth mud bend pipes, is respectively equipped with the water distribution disk of level below the outlet of each cloth mud bend pipe.
3, a kind of waste disposal plant that uses the described self-circulation type anaerobic reactor of claim 1, comprise aeration tank and settling tank, with and inner from setting gradually one-level triphase separator and secondary triphase separator down, its inside is separated into first reaction chamber from bottom to up, the self-circulation type anaerobic reactor of second reaction chamber and settling region three parts, it is characterized in that: be provided with at described self-circulation type anaerobic reactor top by the master and advance the pulse cloth mud jar that the mud pipe communicates with the described first reaction chamber inner chamber, this pulse cloth mud jar is provided with the mud water inlet pipe that is communicated with described settling tank, the termination that master in pulse cloth mud jar advances the mud pipe is inverted U-shaped, its port top is provided with siphon pipe, and described settling region is provided with the mud return line that is communicated with described aeration tank.
4, a kind of waste disposal plant according to claim 3, it is characterized in that: between described settling tank and self-circulation type anaerobic reactor, be provided with storage mud jar and mud lift pump, described siphon pipe is communicated with this storage mud jar, the import of mud lift pump is communicated with storage mud jar, and outlet is communicated with described mud water inlet pipe.
5, a kind of waste disposal plant according to claim 4, it is characterized in that: the ingress at described mud lift pump is provided with filter screen.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102492726A (en) * | 2011-11-21 | 2012-06-13 | 浙江大学 | Method and device for producing hydrogen and methane through fermentation of residual sludge |
| CN102730828A (en) * | 2012-06-11 | 2012-10-17 | 苏州顶裕水务科技有限公司 | Double-internal-circulation anaerobic granular sludge biochemical reactor |
| CN104150593A (en) * | 2014-09-05 | 2014-11-19 | 重庆大学 | Two-phase one-piece sludge concentrating and digesting reactor |
| CN105800874A (en) * | 2016-05-06 | 2016-07-27 | 广西神州环保设施运营有限责任公司 | Urban domestic sewage and garbage integrated and circular type centralized treatment system |
| CN110282846A (en) * | 2019-07-31 | 2019-09-27 | 大连安能杰科技有限公司 | A kind of combination unit of medium temperature alkaline hydrolysis sludge production carbon source |
| CN110902946A (en) * | 2019-11-27 | 2020-03-24 | 苏州科技大学 | Integrated sewage treatment device |
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2009
- 2009-04-02 CN CN2009200538822U patent/CN201424414Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102492726A (en) * | 2011-11-21 | 2012-06-13 | 浙江大学 | Method and device for producing hydrogen and methane through fermentation of residual sludge |
| CN102730828A (en) * | 2012-06-11 | 2012-10-17 | 苏州顶裕水务科技有限公司 | Double-internal-circulation anaerobic granular sludge biochemical reactor |
| CN102730828B (en) * | 2012-06-11 | 2015-02-25 | 苏州顶裕水务科技有限公司 | Double-internal-circulation anaerobic granular sludge biochemical reactor |
| CN104150593A (en) * | 2014-09-05 | 2014-11-19 | 重庆大学 | Two-phase one-piece sludge concentrating and digesting reactor |
| CN104150593B (en) * | 2014-09-05 | 2016-01-27 | 重庆大学 | Two-phase integrated mud concentrating and digesting reactor |
| CN105800874A (en) * | 2016-05-06 | 2016-07-27 | 广西神州环保设施运营有限责任公司 | Urban domestic sewage and garbage integrated and circular type centralized treatment system |
| CN110282846A (en) * | 2019-07-31 | 2019-09-27 | 大连安能杰科技有限公司 | A kind of combination unit of medium temperature alkaline hydrolysis sludge production carbon source |
| CN110902946A (en) * | 2019-11-27 | 2020-03-24 | 苏州科技大学 | Integrated sewage treatment device |
| CN110902946B (en) * | 2019-11-27 | 2021-11-16 | 苏州科技大学 | Integrated sewage treatment device |
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