CN201850177U

CN201850177U - Vortex flow, laminar flow and pulse flow type anaerobic bioreactor

Info

Publication number: CN201850177U
Application number: CN2010206161305U
Authority: CN
Inventors: 梁近光; 潘心红
Original assignee: BIJIA MICROBE ENGINEERING CO LTD GUANGXI
Current assignee: BIJIA MICROBE ENGINEERING CO LTD GUANGXI
Priority date: 2010-11-22
Filing date: 2010-11-22
Publication date: 2011-06-01
Anticipated expiration: 2020-11-22

Abstract

The utility model discloses a vortex flow, laminar flow and pulse flow type anaerobic bioreactor which comprises a tank body and is characterized by also comprising an upper gas collecting hood arranged in the tank body, a lower gas collecting hood arranged at the lower side in the tank body, a return pipe arranged in middle of the lower gas collecting hood, and a water distributer arranged at the bottom of the tank body and used for inputting sewage. In the anaerobic bioreactor, the upper gas collecting hood and the lower gas collecting hood are utilized for dividing the sewage into a plurality of reaction areas, namely a laminar flow area at the upper part, a vortex flow area at the lower part and a pulse flow area at the middle part. After biogas generated by upflow is separated from solid and liquid, the solid loses flotage to form downflow; the biogas, the liquid and the solid return to respective reaction areas; and the formed vortex flow, laminar flow and pulse flow accelerate the reaction speed of the sewage, and the sewage treatment efficiency is further improved. The anaerobic bioreactor overcomes the defects of the existing UASB (Upflow Anaerobic Sludge Blanket) reactor, realizes fast starting time and high load and lowers the investment cost of equipment. Besides, available biogas and water can be obtained, and the anaerobic bioreactor is environment-friendly and applicable to the treatment of various organic sewage.

Description

Eddy current, laminar flow and pulse flow type anaerobe reactor

Technical field

The utility model relates to a kind of sewage disposal device, especially the biological sewage treatment device.

Background technology

The first UASB reactor that claims of up flow anaerobic sludge blanket reactor (Upflow Anaerobic Sludge Blanket) has been used anaerobic biological treatment sewage, has been most widely used organic sewage anaerobic biological treatment equipment since nearly 20 years.The principle of work of UASB structure of reactor is: sewage enters inside reactor from the bottom of UASB container and fully contacts with anaerobic grain sludge, anaerobic reaction takes place finish gas, liquid, the triphasic separation of solid, produce biogas attached to the gas delivery on the granule sludge, discharge reactor by collection chamber, the sewage of handling then flows out from effluent weir; Anaerobic grain sludge behind the release biogas is because the action of gravity precipitation turns back to the reaction zone of bottom.Its shortcoming is: (1) will make UASB reactor volume load efficient, stable operation will depend on the anaerobic grain sludge that forms in reactor and since sewage and anaerobic grain sludge do not have contact under the situation of other supplementary structure limited, anaerobic reaction is slow and incomplete, and efficient is low.(2) form anaerobic grain sludge in reactor, steady running generally needs about three months time, and the time is longer, and the sewage volumetric loading just can reach 5-10kgCOD/m ³.d, the chemical oxygen demand (COD) of sewage (COD) clearance just can reach more than 90%.

The utility model content

The purpose of this utility model provides eddy current, laminar flow and the pulse flow type anaerobe reactor that a kind of start time is fast, volumetric loading is high and the COD clearance is high, can satisfy the needs that organic sewage is rapidly and efficiently handled in modern industry production.

The english abbreviation of eddy current, laminar flow and pulse flow type anaerobe reactor is the TLP anaerobic biological reactor, and wherein: T is English Turbulent a---eddy current, and L is English Laminar---streamlined, P is English Pulsation---writing a Chinese character in simplified form of pulse.The main design that the TLP anaerobic biological reactor is handled organic sewage is:

1. in retort, designed have on the structure of gas skirt and following gas skirt, sewage is divided into a plurality of reaction zones sewage is fully reacted in several reaction flow states such as each reaction zone generation eddy current, laminar flow and stream of pulses and bio anaerobic mud.

2. by directly throwing in the high reactivity anaerobic sludge, adopt the biological curing technology, improve germs collect density, make the microorganism dominant microflora in bio-reactor, form the optimization regulation and control of microbial ecosystem, solve in the biochemical reaction process because the microbial population that the hazardous and noxious substances impact is caused in the water inlet is unbalance in bio-reactor, improve biological treatment, the stability of enhanced system and the anti-punching performance power of hard-to-degrade biomass.

3. utilize upper and lower gas skirt that sewage is divided into a plurality of reaction zones, top is a laminar region, and bottom and middle part form vortex cavity, stream of pulses district.Owing to be divided into several reaction zones, the upwelling that the reaction of each reaction zone forms arrives reactor head respectively, finishes gas, liquid, the triphasic separation of solid, after biogas that upwelling produces and solid, the liquid separation, the solid loss of buoyance forms katabatic drainage, gets back to reaction zone separately.Eddy current, laminar flow, stream of pulses that this structure forms have easily been accelerated the sewage speed of response, have further improved sewage treating efficiency, can prevent that granule sludge from flowing out outside the TLP anaerobic reactor simultaneously again.

This vortex cavity and laminar region, stream of pulses district are set in the TLP reactor, make that granule sludge is difficult for taking place exchanging mutually mobile between each reaction zone, microorganism growth in each reaction zone and breeding are not vulnerable to repel mutually influence, help very much the fixation of microbe growth, because by improving the flow mechanics characteristic of inside reactor, increased methods such as biomass and optimization microorganism species at each reaction zone, germs collect density is improved, microbial biomass greatly increases on the granule sludge.Because " protection " effect of the inner microorganism cells of each reaction zone; the anti-load impact ability of bio-reactor is improved; the transition environmental compatibility strengthens; whole microorganism active improves; mass-transfer performance also is improved; the biological fermentation speed of reaction improves, thereby makes the TLP reactor start-up time short, and the processing load of sewage improves fast.Prove that through test of many times reactor can be brought up to 30-40kgCOD/m at short notice ³.d, the COD clearance reaches more than 90%.

Concrete technical scheme is:

A kind of eddy current, laminar flow and pulse flow type anaerobe reactor, it comprises tank body, it is characterized in that also comprising:

Be located at the last gas skirt in the described tank body and the following gas skirt of inner underside thereof;

Be located at described gas skirt intermediary return line down;

Be located at the bottom of tank body, be used to import the water distributor of sewage.

Described top of going up gas skirt and following gas skirt is nested at interval, and the lower section is horn-like that Open Side Down.

Described water distributor is the water pipe that multistage communicates with the sewage input tube, and establishes and be distributed on the downward water outlet of each section water pipe upper shed.

The TLP anaerobic biological reactor of above structure utilizes upper and lower gas skirt that sewage is divided into a plurality of reaction zones, and top is a laminar region, and bottom and middle part form vortex cavity, stream of pulses district.Earlier a certain amount of high reactivity anaerobic sludge is put into TLP anaerobic biological reactor inside, again sewage is entered the TLP inside reactor through water distributor and fully contact fermentation, produce the anaerobe reaction with the high reactivity anaerobic sludge.Because the below of each section water service pipe on the water distributor of reactor bottom, water outlet down jet flow goes out in the reactor, constantly produces eddy effect through return line in the upwelling process.Produce the laminar flow effect again after sewage enters each reaction zone simultaneously, between each reaction zone water inlet mouth of a gorge, formed effect of Fluid Pulsation again.The biological sludge of this moment is fully contacted growth with sewage, constantly produces the biological fermentation effect, in each reaction zone, finished gas, liquid, solids constituent from.Gas is discharged from the air outlet of tank deck, and clean liquid is discharged from the jar side outlet, at the bottom of solid is sunken to jar.Thereby can constantly handle entering into jar interior sewage, draw available gas, be generally biogas, and clean water.

This TLP reactor has overcome the shortcoming of existing UASB reactor through test of many times, has realized that start time is fast, and load is high, satisfies the needs that modern industry production is rapidly and efficiently disposed of sewage, and reaches the reduction equipment investment cost again.Reclaim behind the biogas and organic sewage application continuum activated sludge process and floating method technology are handled again with the TLP reactor technology, the high difficult problem of organic sewage treatment process running cost before having solved reduces the running cost of aerobic treatment sewage greatly.Table 1 is the cost performance of two kinds of reactors.

The cost performance table 1 of TLP reactor and UASB reactor

Description of drawings

Fig. 1 is a sectional structure synoptic diagram of the present utility model.

Fig. 2 is the structural representation that Fig. 1 analyses and observe along the A-A line.

Fig. 3 is the structural representation that Fig. 1 analyses and observe along the B-B line.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Shown in Figure 1, be sectional structure synoptic diagram of the present utility model.By among the figure as can be known, be respectively arranged with side installing port 2 and the top installing port 5 that the people can come in and go out at the left side and the top of cylindrical tank 3.In the centre of jar chamber internal upper part, hang by over sling 8 and following uniform some suspension rods 10 thereof and to be provided with gas skirt 13, top of gas skirt 13 is divided into tubular on this, and the lower section is horn-like that Open Side Down.In the inboard of last gas skirt 13, be jacketed with and the identical following gas skirt 15 of last gas skirt 13 shape and structures, the top of this time gas skirt 15 also is fixedly connected by some uniform suspension rods 9 and suspension bracket 8.The inboard of the periphery of suspension bracket 8 and tank body 3 is fixedly connected.Centre at following gas skirt 15 also is interval with return line 17, and this return line 17 should be provided with the fixed support bar with suspension bracket 8 or following gas skirt 15, for the sake of simplicity, does not draw in the drawings.On tank body 3 inboards of the following hydraucone corresponding section of last gas skirt 13 and following gas skirt 15, be fixed with one respectively and enclose leg-of-mutton upper mounted plate 14 and bottom plate 16.Below the bottom and return line 17 of tank body 3, be provided with the downward water distributor 1 of a plurality of water outlet 18, the further structure of this water distributor 1 is seen Fig. 2.The top of tank body 3 is upper conical, is provided with the pneumatic outlet 6 that communicates with the outside at the crown center of tank body 3.In tank body 3 inboards, last gas skirt 13 suitable for reading to the tank deck side be collection chamber 7.Jar in collection chamber 7 is fixed with suspension bracket 8 on the inwall, on the jar inwall below this suspension bracket 8, is fixed with the water leg 11 that a circle constitutes with tank skin, and water leg 11 is suitable for reading to be fixed with the annular of catchmenting and to pull 4.Water in the water leg 11 is by outside rising pipe 12 drain tanks that are located at tank skin, recyclable utilization.

Shown in Figure 2, be the structural representation that Fig. 1 analyses and observe along the A-A line, it has mainly represented the structure of water distributor 1.By among the figure as can be known, the multistage water pipe 20 in the water distributor 1 is distributed on the bottom of tank body 3 and all communicates with sewage input tube 19, is laid with several on each section water pipe 20 and can sprays water to the water outlet 18 of jar bottom surface, easily causes eddy current during sewage in ejection.

Shown in Figure 3, be 1 structural representation of analysing and observe along the B-B line, it has mainly expressed the plan structure in the tank body 1.In the drawings, the suspension bracket of " ten " font 8 is fixedly connected with the upper end of tank body 3, see toward in by the tank body 3 of outer ring, and be water leg 11 in regular turn, the annular of catchmenting pulls 4, goes up gas skirt 13, time gas skirt 15 and return line 17.The both sides of tank body 3 are respectively equipped with the people's that can come in and go out side installing port 2 and water leg water shoot 12.

The principle of work of the utility model anaerobic biological reactor is:

Earlier a certain amount of high reactivity anaerobic sludge is put into tank body 3 from top installing port 5, then behind installing port 5 and installing port 2 good seals.Again with organic sewage from sewage input tube 19 in water distributor 1 enters tank body 3, fully contact fermentation with the high reactivity anaerobic sludge, produce the anaerobe reaction.Because the below of each section water service pipe on the water distributor 1 of tank body 3 bottoms, the water outlet 18 that a plurality of downward water sprays are arranged uniformly at intervals, the sewage of input sprays on jar bottom surface, forms the vortex cavity at the hydraucone of gas skirt 15 down between jar end, and this interval while also is the anaerobe Sludge Bed.In the upwelling process of the mixed solution of high reactivity anaerobic sludge and sewage, a part of return line 17 through the center overflows from the suitable for reading past of return line 17 again, constantly produces eddy effect between return line 17 and following gas skirt 15.In like manner, mixed solution rises in the following gas skirt 15 laterally suitable for reading, promptly goes up gas skirt 13 inboards when overflowing, and also can constantly produce eddy effect.In the chamber that 15 times loudspeaker of gas skirt and tank skin constitute down, because the inlet that mixed solution rises is narrower, and the space is less, forms effect of Fluid Pulsation easily, constitutes the effect of Fluid Pulsation district.In the chamber of last gas skirt 13 outsides and tank skin formation, because the inlet that mixed solution rises is narrower, but the space is bigger, forms circulating laminar flow easily, constitutes the laminar region.Mixed solution is also in exchange constantly between each vortex cavity, effect of Fluid Pulsation district and the laminar region, make the high reactivity anaerobic sludge fully be contacted growth with sewage, constantly produce the biological fermentation effect, in each reaction zone, finished gas, liquid, solids constituent from, and constantly rise on the ground, owing to gas, liquid, solid proportion difference, in the process that rises, the biogas that produces in the sepn process is discharged from the pneumatic outlet 6 of tank top.Liquid after the processing fall the annular of catchmenting pull 4 and water leg 11 after, flow out from rising pipe 12.Bio anaerobic mud and solid behind the release bubble because action of gravity precipitates, are finally got back to the bottom of jar downwards.Preparation is handled the sewage of next round.

Claims

1. an eddy current, laminar flow and pulse flow type anaerobe reactor, it comprises tank body, it is characterized in that also comprising:

Be located at the following gas skirt (15) of gas skirt (13) on described tank body (3) intermediary and interior below thereof;

Be located at described gas skirt (15) intermediary return line (17) down;

Be located at the bottom of tank body (3), be used to import the water distributor (1) of sewage.

2. eddy current according to claim 1, laminar flow and pulse flow type anaerobe reactor is characterized in that:

Described top of going up gas skirt (13) and following gas skirt (15) is nested at interval, and the lower section is horn-like that Open Side Down.

3. eddy current according to claim 1, laminar flow and pulse flow type anaerobe reactor is characterized in that:

Described water distributor (1) is provided with the water outlet (18) of several openings to the jar bottom surface for bottom that is distributed on tank body 3 and the multistage water pipe (20) that all communicates with sewage input tube (19) on each section water pipe (20).