CN202046977U

CN202046977U - Anaerobic-aerobic integrated reactor

Info

Publication number: CN202046977U
Application number: CN2011201660477U
Authority: CN
Inventors: 张建昆; 孙钦花
Original assignee: Xuzhou University of Technology
Current assignee: Xuzhou University of Technology
Priority date: 2011-05-16
Filing date: 2011-05-16
Publication date: 2011-11-23
Anticipated expiration: 2021-05-16

Abstract

The utility model discloses an anaerobic-aerobic integrated reactor and belongs to a sewage treatment device. The anaerobic-aerobic integrated reactor comprises a shell body, wherein an inner cavity of the shell body is divided into two chambers, one is an ABR (Anaerobic Baffle Reactor), and the other is a BAF (biological aeration filter); the ABR and the BAF are communicated to form a whole through a connecting pipe; and two ends of the connecting pipe are respectively connected at the upper parts of the ABR and the BAF. The anaerobic-aerobic integrated reactor is an integrated reactor which has the beneficial effects of simple structure, convenience in management, high treatment efficiency, long contact time, good outlet water quality, small occupation, reduced engineering investment and the like.

Description

The anaerobic-aerobic integrated reactor

Technical field

The utility model relates to a kind of waste disposal plant, specifically is a kind of anaerobic-aerobic integrated reactor.Mainly be applicable to and handle various organic waste waters, especially high concentrated organic wastewater.

Background technology

At present often adopting anaerobic process or aerobic method two big classes aspect the biological treatment of organic waste water, with respect to aerobic method, anaerobic treatment has lot of advantages, and for example sludge yield is low, energy consumption is low, recyclable biogas etc.But anaerobic biological treatment method at present commonly used exists variety of issue or defective, as the upflow anaerobic sludge blanket process that is most widely used (UASB) needs complicated triphase separator, under cold condition or initial start stage or when handling low-concentration organic waste water processing efficiency low.

Anaerobic baffled reactor (ABR) is a kind of high efficiency anaerobic reactor of the exploitation eighties in last century, ABR is a new high-efficiency reactor of being made up of many compartments, the ABR reactor is a kind of many cell structure of Continuous Flow, sewage is flowed through each compartment successively and is obtained degraded, each compartment of reactor all has an anaerobic sludge layer, its function and UASB reaction zone are similar, and different is that the ABR reactor is not provided with triphase separator.Advantages such as the existing biological interception capacity of its technology is strong, operational management convenience, dependable performance.But the ABR reactor is a kind of as anaerobic biological treatment technology, general character with anaerobic biological treatment, though promptly organism is had the high processing rate, but still contain a large amount of organism in the reactor water outlet, water outlet can not reach emission standard, often behind anaerobic reactor, need to add aerobic treatment, further remove the organism in the anaerobic reactor water outlet.

BAF (BAF) is the aerobic sewage treatment process that rises the phase at the beginning of the nineties in last century, it has the advantages that to integrate bio-oxidation and hold back suspended substance, save the post precipitation pond, have the volumetric loading height, hydraulic detention time is short, initial cost is few, effluent quality is high a bit.

What processing organic waste water generally adopted on the engineering is the anaerobic-aerobic combination process, but two complete equipments that existing anaerobic-aerobic combination process is independent often, investment is all bigger with occupation of land, and anaerobic reactor directly combines the equipment that makes with the general employing of aerobic reactor and is easy to generate short stream, influences treatment effect.

Summary of the invention

For solving the problems referred to above and the defective that the anaerobic-aerobic combining process equipment exists, the utility model provides a kind of anaerobic-aerobic integrated reactor, is the integrated reactor with ABR reactor and BAF reactor for treatment sewage.This apparatus structure is simple, convenient management, treatment efficiency height, duration of contact is long, effluent quality good, floor space is little, has reduced the integrated reactor of advantages such as construction investment.

The utility model adopts following technical scheme to realize: a kind of anaerobic-aerobic integrated reactor, comprise housing, the inner chamber of housing is separated into two chambers with dividing plate, one is anaerobism anaerobic baffled reactor ABR, another is BAF reactor B AF, by pipe connecting anaerobic baffled reactor ABR and BAF reactor B AF is communicated with the formation one in the middle of both; The two ends of described pipe connecting are connected to the top of anaerobic baffled reactor ABR and BAF reactor B AF.

Enter in the ABR reactor of anaerobism section through pretreated sewage, in this stage anaerobic reaction takes place, the degraded of process anerobe reduces the organic concentration in the sewage greatly.Enter into the top of BAF reactor again via coupling device through the sewage of anaerobic treatment, sewage from up to down flows, by the oxygenation of BAF reactor, for aerobic bacteria provides oxygen, aerobic microbiological decomposes remaining organism in the sewage, pollutants in sewage concentration is further reduced, and reach emission request.

The beneficial effects of the utility model are:

1, the utility model is combined into one anaerobic reactor and aerobic reactor, and structure of reactor is compact simple, has reduced cost, has reduced volume;

2, under the anaerobic-aerobic condition, can efficiently remove the organic waste water of high density, and surplus sludge volume is few, can save mudpan and excess sludge treatment step, save capital cost and working cost;

3, adopt anaerobic baffled reactor, the vertical traverse baffle of arranging in this reactor had both played and had mixed the effect of stirring, and had increased the duration of contact of anaerobic sludge and sewage again, had improved treatment effect.

4, the utility model has adopted the treatment process of ABR+BAF combination, can handle the organic waste water of high density, and treatment effect is good, can effectively guarantee effluent quality.

Description of drawings

Fig. 1 is an anaerobic-aerobic integrated reactor cross-sectional view of the present utility model.

Fig. 2 is an anaerobic-aerobic integrated reactor two dimensional structure synoptic diagram of the present utility model.

Among the figure: 1, water inlet pipe, 2, sludge gas collecting device, 3, communicating pipe, 4, control valve, 5, the back flushing rising pipe, 6, packing layer, 7, supporting layer, 8, aerating apparatus, 9, water outlet and back flushing water inlet pipe, 10, division plate, 11, traverse baffle, 12, anaerobic baffled reactor ABR, 13, BAF reactor B AF, 14, housing.

Embodiment

As shown in Figure 1 and Figure 2, the utility model comprises housing 14, housing 14 is a rectangle, its inner chamber is separated into two chambers with dividing plate, one is anaerobic baffled reactor ABR12, another is BAF reactor B AF13, by pipe connecting 3 anaerobic baffled reactor ABR12 and BAF reactor B AF13 is communicated with the formation one in the middle of both; The two ends of described pipe connecting 3 are connected to the top of anaerobic baffled reactor ABR12 and BAF reactor B AF13.

Be provided with the traverse baffle 11 of 3-5 division plate 10 and quantity correspondence in anaerobic baffled reactor ABR 12 reactors, present embodiment is established 3 division plates 10 anaerobic baffled reactor is separated into 4 compartments.Division plate and traverse baffle are vertically installed, and are welded on the housing 14 of reactor, in a side of reactor water-in 1 are arranged, and the biogas escape pipe is arranged at top.The top of anaerobic baffled reactor ABR 12 also is equipped with sludge gas collecting device 2.

In the BAF reactor B AF13 aerating apparatus 8 is installed, bottom-up device successively has supporting layer 7 and packing layer 6.Present embodiment aerating apparatus 8 is installed in the bottom.By the bottom water outlet and back flushing water inlet pipe 9 are arranged, the control valve 4 of back flushing rising pipe 5 and control back flushing rising pipe is arranged at top.

Sewage treatment process is: entered by water inlet pipe 1 in the ABR reactor of anaerobism section through pretreated sewage, anaerobic reaction takes place in this stage in flow through the successively ABR reactor of four compartments of sewage, reduces greatly through the organic concentration in the degradation of sewage of anerobe.Enter into the top of BAF reactor again via communicating pipe 3 through the sewage of anaerobic treatment, sewage from up to down flows, by aeration aerating device 8 to the oxygenation of the BAF of aerobic section reactor, for aerobic bacteria provides oxygen, then decompose remaining organism in the sewage attached to the aerobic microbiological on the filler, be that Pollutant levels in the water further reduce, and reach emission request, via rising pipe 9 water outlets; When the microbial film thickness on the filler is blocked up, can carry out back flushing, at first water inlet pipe 1 stops into water, and opens control valve 4, and back flushing water inlet pipe 9 carries out back flushing, and the water outlet of back flushing is discharged by back flushing rising pipe 5.Described anaerobic-aerobic integrated reactor global shape is a rectangle.

Claims

1. anaerobic-aerobic integrated reactor, it is characterized in that comprising housing (14), the inner chamber of housing (14) is separated into two chambers with dividing plate, one is anaerobic baffled reactor ABR (12), another is BAF reactor B AF (13), by pipe connecting (3) anaerobic baffled reactor ABR (12) and BAF reactor B AF (13) is communicated with the formation one in the middle of both; The two ends of described pipe connecting (3) are connected to the top of anaerobic baffled reactor ABR (12) and BAF reactor B AF (13).

2. anaerobic-aerobic integrated reactor according to claim 1, it is characterized in that described anaerobic baffled reactor ABR (12) is provided with the traverse baffle (11) of 3-5 division plate (10) and quantity correspondence in reactor, division plate (10) and traverse baffle (11) are vertically installed, be welded on the housing of reactor, side at reactor has water-in (1), and the biogas escape pipe is arranged at top.

3. anaerobic-aerobic integrated reactor according to claim 1 is characterized in that being equipped with in the described BAF reactor B AF (13) aerating apparatus (8), and bottom-up device successively has supporting layer (7) and packing layer (6).

4. anaerobic-aerobic integrated reactor according to claim 1 is characterized in that in the top of anaerobic baffled reactor ABR (12) sludge gas collecting device (2) being installed also.