CN203486964U

CN203486964U - Anaerobic sludge red reactor

Info

Publication number: CN203486964U
Application number: CN201320534572.9U
Authority: CN
Inventors: 胡晋明; 顾心艺
Original assignee: SHANGHAI CHECOA ENVIRONMENTAL TECHNOLOGY Co Ltd
Current assignee: SHANGHAI CHECOA ENVIRONMENTAL TECHNOLOGY Co Ltd
Priority date: 2013-08-29
Filing date: 2013-08-29
Publication date: 2014-03-19
Anticipated expiration: 2023-08-29

Abstract

The utility model discloses an anaerobic sludge bed reactor which comprises a three-phase separator arranged at the top in a tank type reactor, wherein the three-phase separator comprises a gas-liquid inclined plate separation module and a solid-liquid inclined plate separation module; an effluent weir is arranged at the top of the solid-liquid inclined plate separation module; a partition baffle is arranged between the two groups of inclined plate separation modules; wastewater is pumped into a water inlet main pipe through a reactor feed pump and enters the reactor through a water distributor; the wastewater flows upward through a sludge bed layer to generate a biological reaction with anaerobic bacteria to generate a great quantity of biogas; when the mixed liquid goes upward to a gas-liquid interface, a great quantity of biogas is separated from the mixed liquid; the mixed liquid without most of the biogas enters the gas-liquid inclined plate separation module from the top of the gas-liquid inclined plate separation module to realize gas-liquid separation and partial solid-liquid separation; the biogas flows upward to be collected at the top of the reactor and finally is fed into a biogas treatment unit through a biogas pipe orifice for treatment; furthermore, the mixed liquid without gas enters the solid-liquid inclined plate separation module to realize solid-liquid separation. In the reactor disclosed by the utility model, the three-phase separator is simple to process, the module is relatively small, and the price is low; compared with the existing reactor, the reactor disclosed by the utility model has obvious advantages.

Description

A kind of anaerobic mud bed reactor

Technical field

The utility model relates to a kind of anaerobic mud bed reactor.

Background technology

At present, to have internal-circulation type anaerobic reactor (IC), anaerobism upper reaches Sludge Bed-strainer (UBF) and anaerobic baffled reactor (ABR) and UASB reactor etc. be the typical third generation anaerobic reactor of representative to more conventional efficient anaerobic treatment system.

Internal-circulation type anaerobic reactor (Internal Circulation, be called for short IC) be in 20th century high efficiency anaerobic reactor succeeded in developing on the basis of UASB reactor of the mid-80 by Dutch Paques company, IC reactor is actually by bottom and two, top UASB reactors in series and is formed by stacking, and comprises 4 different functional units: mixing portion, expanded bed part, precision processing part and backflow part.IC reactor has following characteristics: aspect ratio is larger, and floor space is little, and construction investment economizes; Organic loading rate is high, and liquid upflow velocity is large, and hydraulic detention time is short; Stable water outlet, anti impulsion load ability is strong; Waste water applied widely, can to process basic, normal, high concentration waste water and contain toxic substance.But the problem existing has 1) can not use floc sludge, system is easily run mud; 2) the triphase separator requirement on machining accuracy of IC reactor is very high, expensive.

Anaerobism upper reaches Sludge Bed-strainer (Upflow Blanket Filter is called for short UBF) is the novel combined anaerobic reactor that the Guiot of Canadian succeeded in developing on the basis of UASB and AF in 1984.This novel reactor can be given full play to the advantage of UASB and two kinds of high efficiency reactors of AF, is a new bio treatment technology that has development and application values.Its bottom is the Sludge Bed that high concentration particle mud forms, and top is the filter material layer that filler and the microbial film that adheres to thereof form., easily there is mud and be easy to come off in the packing area on UBF top, therefore need thereafter to connect second pond, is used for the sludge concentration of the system that maintains.And the microbial film adhering on filler easily stops up filler, will the mixed solution moving upward be caused to resistance, cause gas, liquid, solid three-phase to be difficult to separation.UBF needs specific filler, and price comparison is expensive.

Anaerobic baffled reactor (ABR) is that McCarty and Bachmann equal a kind of new and effective anaerobic reactor that nineteen eighty-two proposes.Its construction features are: in reactor, along hydraulic flow to multilayer insulating panel is set, reactor is separated into the reaction chamber of several series connection, each reaction chamber is after a first up-flow, to fall stream, similar anaerobic mud bed unit.ABR simple structure need to not arrange complicated modular assembly in reaction tank, less demanding to the detailing of reactor; But also there are many problems, mainly: 1) in order to guarantee certain current and aerogenesis lift velocity, this just causes the ABR reactor can not be too dark, and under same volumetric loading, floor space is larger, invests larger; 2) water inlet of ABR reactor is difficult to be uniformly distributed, and has waterpower dead angle and biological dead band; 3), because reaction density progressively successively decreases from high to low, the first compartment of ABR reactor has to bear the localised load much larger than mean load, cannot resist impact load, fluctuation of service.

The upflow velocity of UASB reactor is generally 1-1.5m/h, and the hydraulic mixing poor effect of UASB inside reactor designs when bad and usually can cause short stream, so design loading do not increase, and pool volume is larger than this reactor.Conventionally the design loading of UASB reactor is 6-8kgCOD/m3/d.

Utility model content

The purpose of this utility model is to propose a kind of anaerobic mud bed reactor, and it can solve the problem that above-mentioned prior art exists.

For achieving the above object, the utility model can be achieved by the following technical programs:

A kind of anaerobic mud bed reactor of the present utility model, comprise a totally enclosed tank type reactor, evenly be arranged on some cloth water dispensers that tank type reactor bottom connects by the female Guan Yuyi reactor charging pump of water inlet respectively, be arranged on the biogas mouth of pipe of tank type reactor head, also comprise the triphase separator that is arranged on this tank type reactor inner top, this triphase separator comprises that gas-liquid swash plate separation module and solid-liquid swash plate separation module form, the top of solid-liquid swash plate separation module is provided with effluent weir, in the middle of these two groups of swash plate separation modules, be provided with a separation baffles, in this reactor, be provided with mud bed, the collecting methane region being provided with in reactor top, and described gas-liquid swash plate separation module and solid-liquid swash plate separation module one side are provided with sludge bucket.

In the utility model, the spacing in described gas-liquid swash plate separation module and solid-liquid swash plate separation module between swash plate is set to 80mm, and the angle of inclination of swash plate is set to 53-60 degree.

In the utility model, described cloth water dispenser is six channels designs.

In the utility model, also include the circulation line being arranged on reactor, waste water is back to water into the female Guan Yuyuan water of water and mixes through recycle pump from the circulating line on reactor top.

In the utility model, on this reactor, be provided with the pressure unit interface of setting pressure transmitter.

In the utility model, on this reactor, be provided with mud mouth, thief hole and sampling line.

In the utility model, at the top of described reactor, be provided with viewing window; At top and bottom, be respectively arranged with hand-hole; In bottom, be provided with drain.

Owing to adopting above scheme, compare with IC reactor, in anaerobic mud bed reactor of the present utility model, triphase separator processing is simple, module is less, cheap, so, sludge bed reactor of the present utility model, can be applied to IC reactor for treatment sewage completely, but the sewage that contains high concentration suspended matter is the advantage place of this reactor, compare with other anaerobic reactors, the utlity model has larger aspect ratio, adopt out water cycle, there is higher upflow velocity and volumetric loading, floor space is little, reduce investment outlay, and adopt novel water distributor design, can guarantee that inlet channel is difficult for stopping up, former water carries out water distribution by female pipe of intaking, then by arm, enter water distributor, water distributor is the design of six passages, the exit velocity of each passage designs according to the flow velocity of 3m/s, because exit velocity is larger, the anaerobic sludge of reactor bottom can guarantee best mixing requirement with the effect of mixing of former water, therefore the utility model is compared with other reactors, has obvious advantage, with UBF anaerobic reactor, compare, without filler, also do not need second pond, triphase separator can well be realized the separation of gas, liquid, solid three-phase, thereby guarantees stable water outlet, with UASB reactor, compare, this reactor upflow velocity can reach 4-6m/h, and the upflow velocity of UASB reactor is generally 1-1.5m/h, so hydraulic mixing poor effect of UASB inside reactor, design when bad and usually can cause short stream, therefore design loading does not increase, and pool volume is larger than this reactor.Conventionally the design loading of UASB reactor is 6-8kgCOD/m3/d, and this reactor can reach 10-15kgCOD/m3/d.

Accompanying drawing explanation

The utility model is described in further detail with specific embodiment with reference to the accompanying drawings below:

Fig. 1 is triphase separator vertical view in the utility model;

Fig. 2 is along the sectional view of A-A face in Fig. 1;

Fig. 3 is along the sectional view of B-B face in Fig. 1;

Fig. 4 is along the sectional view of C-C face in Fig. 1;

Fig. 5 is three phase separation schematic diagram between gas-liquid separation module swash plate;

Fig. 6 is three phase separation schematic diagram between solid-liquid separation module swash plate;

Fig. 7 is traditional three phase separation schematic diagram;

Fig. 8 is the utility model front cross-sectional view;

Fig. 9 is the utility model reverse side sectional view;

Figure 10 is the layout drawing of cloth water dispenser in the utility model.

Wherein: 1, the female pipe of water inlet; 2, cloth water dispenser; 3, triphase separator; 4, effluent weir; 5, thief hole; 6, stopple coupon; 7, mud mouth; 8, drain; 9, hand-hole; 10, pressure unit interface; 11, viewing window; 12, collecting methane region; 13, the biogas mouth of pipe; 14, the vacuum pressure valves mouth of pipe; 15, gas-liquid swash plate separation module; 16, solid-liquid swash plate separation module; 17, sludge bucket; 18, mud is discharged seam; 19; Reactor cell body; 20; Separation baffles; 21; Effluent pipe mouth

Embodiment

As Figure 1-4, triphase separator 3 in the utility model is comprised of gas-liquid swash plate separation module 15 and solid-liquid swash plate separation module 16, in the middle of two groups of swash plate modules, by a separation baffles 20, separated, mixed solution enters from the top of first group of gas-liquid swash plate separation module 15, the direction of current is for flowing downward, the micro-bubble of now carrying secretly in current swash plate separation module 15 interior on flow, simultaneously swash plate separation module 15 be designed with enough contacts area can so that a considerable amount of micro-bubble finally from water, separate and rise to Chi Ding, there is the downward landing of mud of part to sludge bucket 17 simultaneously, therefore in the module of first group, the solid-liquid separation of gas-liquid separation and part is achieved.

Current enter second group of solid-liquid swash plate separation module 16 after first group of gas-liquid swash plate separation module 15 isolated gas, second group of solid-liquid swash plate separation module upper design, there is effluent weir 4, therefore the direction of current is for upwards flowing, now the suspended particulate in water precipitates downwards in swash plate module, as long as there are enough desilting areas can reach certain deposition efficiency, the suspended particulate precipitating enters sludge bucket 17 and is then back to Sludge Bed, and the sewage that enters top effluent weir 4 is discharged reactor cell body 19 by effluent pipe mouth 21.

This three phase separation equipment is mainly used in separated biogas, sewage and anaerobic sludge in high density, highly salt containing organic waste water anaerobic reactor.Particularly, in the situation that mud can not form granule sludge, this three phase separation equipment can be avoided the phenomenon of sludge loss effectively, maintains the normal operation of system; And traditional triphase separator is not good for non-particulate mud separating effect, while processing the virose waste water of anaerobion, be easy to cause the loss of mud, the normal running of anaerobic system must rely on and constantly supplement anaerobic sludge.

During operation, current, bubble and suspended sludge flow from bottom to top in reaction tank, directly separated from water at liquid-gas interface place portion gas while rising to reaction tank top, because effluent weir 4 is arranged on the top of solid-liquid swash plate separation module 16, cause the flow direction of current to be seen shown in Fig. 4, first current first enter gas-liquid swash plate separation module 15 from top, the direction of current is downward, as shown in Figure 6, and the gas of carrying secretly in current upwards rises all the time, when current flow between swash plate, gas can rise to the larger bubble of swash plate lower surface formation on top, then along swash plate, rise to the water surface separated from water, the suspended substance of carrying secretly can be deposited to the upper surface of bottom swash plate finally in the sludge bucket 17 of swash plate landing, the current of isolating gas then enter in solid-liquid swash plate separation module 16, now the direction of current is for making progress, and the downward precipitation of the suspended substance of carrying secretly in current, while flowing between swash plate, first suspended substance is deposited on swash plate and realizes and then along swash plate, being slipped in sludge bucket 17 with the separated of current, the current rear effluent weir 4 that is located at top that finally enters of solid-liquid swash plate separation module 16 of flowing through, and then discharge reaction tank by effluent pipe mouth 21, the mud being collected in sludge bucket 17 is back to Sludge Bed by the mud discharge seam 18 of sludge bucket bottom, the fundamental cause why mud can discharge from mud discharge seam 18 is that the mixed solution in triphase separator 3 causes its density to be greater than the mixed solution density outside triphase separator 3 owing to having removed after gas, and contain a large amount of gas in mixed solution outside triphase separator 3, cause density to be less than the mixed solution that removes gas in module, therefore mud can be discharged gas-entrained mixed solution and cannot be discharged seam 18 from mud and enter in triphase separator 3.

Spacing in this triphase separator between each swash plate is set to 80mm, and the angle of inclination of swash plate is set to 53-60 degree, and above basic parameter can be adjusted according to the medium of concrete processing.

And traditional triphase separator as shown in Figure 7, the mixed solution of rising mud when flowing through triphase separator is back in mud bed along inclined-plane, and collection and confinement of gases is finally discharged by biogas pipeline between two panels, and sewage enters effluent weir and discharges reaction tank.Flow velocity in gap is the key of controlling as can be seen from the above description, when the flow velocity of current and gas is excessive, mud can be by the system of taking out of, therefore will to guarantee that enough separating areas must be done very large for this traditional triphase separator, and separating effect designs when bad also can exist risk.

While using reactor of the present utility model to carry out wastewater treatment, as Figure 7-9, former water pumps into into the female pipe 1 of water through reactor charging pump, uniformly distributing enters reactor to the cloth water dispenser 2 of reactor bottom, sewage produces a large amount of biogas after upwards flowing through mud bed and anaerobic bacterium generation biological respinse, when rising to liquid-gas interface, mixed solution have a large amount of biogas separated from mixed solution, collecting methane region in reactor top collects 12, then the mixed solution of deviating from most of biogas enters gas-liquid swash plate separation module 15 from top, biogas upwards flows, mixed solution flows downward to realize the further separated of biogas and mixed solution, isolated collecting methane is to reactor head, the mixed solution of isolating biogas and part mud then enters solid-liquid swash plate separation module 16, mixed solution is realized solid-liquid separation by swash plate, the current of realizing after gas-liquid and solid-liquid separation enter reactor outflow tube mouth 21 discharge reaction tanks through effluent weir 4, biogas enters marsh gas treating system by the biogas mouth of pipe 13 at top.The mud of separating through gas-liquid and solid-liquid swash plate separation module 16 is collected in sludge bucket 17 and then by mud, discharges seam 18 and be back in Sludge Bed assurance anaerobic reactor and maintain certain sludge concentration, the fundamental cause why mud can discharge from mud discharge seam 18 is that the mixed solution in triphase separator 3 causes its density to be greater than the mixed solution density outside triphase separator 3 owing to having removed gas, therefore mud can be discharged gas and cannot be discharged seam 18 from mud and enter in triphase separator, gas can only upwards flow with mixed solution, most of gas is directly diffused into top, rest part biogas enters gas-liquid swash plate separation module 15 wherein with mixed solution from the top of triphase separator 3, at this region biogas and mixed solution, be able to further separated.

This reactor is provided with circulation line: waste water is back to water into the female pipe 1 of water through recycle pump from reactor top circulating line, after evenly mixing with former water, cloth water dispenser 2 by reactor bottom enters reactor again, to regulate the upflow velocity of reactor, upflow velocity scope is 4～6m/h.

This reactor is provided with safety features: pressure unit interface 10, for setting pressure transmitter, can monitor continuously the pressure in reactor, and if run into high pressure or negative pressure, can send guard signal to middle control computer; Vacuum pressure valves interface 14, when producing high pressure or negative pressure abnormal, can discharge or suck gas by this equipment, avoids affecting the structural strength of tank body.

This reactor is provided with mud mouth 7, to input or output mud to reactor.

This reactor is provided with thief hole 5 and sampling line 6, for obtaining water sample and the mud sample of different heights, grasps the operation conditions of reactor.

This reactor is provided with to be observed and maintenance facility: at the top of reactor, be provided with viewing window 11, so that the effect of observing response solid-liquid separation, gas-liquid separation; Meanwhile, at top and bottom, be provided with hand-hole 9, so that maintenance; In bottom, be provided with drain 8, to drain waste water in tank body.

But above-mentioned embodiment is exemplary, be to be this patent to be comprised to the restriction of scope in order better to make those skilled in the art can understand this patent, can not to be interpreted as; So long as according to spirit that this patent discloses do be anyly equal to change or modify, all fall into the scope that this patent comprises.

Claims

1. an anaerobic mud bed reactor, comprise a totally enclosed tank type reactor, evenly be arranged on some cloth water dispensers that tank type reactor bottom connects by the female Guan Yuyi reactor charging pump of water inlet respectively, be arranged on the biogas mouth of pipe of tank type reactor head, it is characterized in that: also comprise that one is arranged on the triphase separator of this tank type reactor inner top, this triphase separator comprises that gas-liquid swash plate separation module and solid-liquid swash plate separation module form, the top of solid-liquid swash plate separation module is provided with effluent weir, in the middle of these two groups of swash plate separation modules, be provided with a separation baffles, in this reactor, be provided with mud bed, in reactor top, be provided with collecting methane region, and described gas-liquid swash plate separation module and solid-liquid swash plate separation module one side are provided with sludge bucket.

2. anaerobic mud bed reactor according to claim 1, is characterized in that: the spacing in described gas-liquid swash plate separation module and solid-liquid swash plate separation module between swash plate is set to 80mm, and the angle of inclination of swash plate is set to 53-60 degree.

3. anaerobic mud bed reactor according to claim 1, is characterized in that: described cloth water dispenser is six channels designs.

4. anaerobic mud bed reactor according to claim 3, is characterized in that: also comprise the circulation line being arranged on reactor, waste water is back to water into the female Guan Yuyuan water of water and mixes through recycle pump from the circulating line on reactor top.

5. anaerobic mud bed reactor according to claim 4, is characterized in that: the pressure unit interface that is provided with setting pressure transmitter on this reactor.

6. anaerobic mud bed reactor according to claim 5, is characterized in that: on this reactor, be provided with mud mouth, thief hole and sampling line.

7. anaerobic mud bed reactor according to claim 6, is characterized in that: the top at described reactor is provided with viewing window; At top and bottom, be respectively arranged with hand-hole; In bottom, be provided with drain.