CN102079575A

CN102079575A - Anaerobic reaction device

Info

Publication number: CN102079575A
Application number: CN2011100555603A
Authority: CN
Inventors: 周继伟; 周桂生
Original assignee: SHANGHAI BAIFENG ENVIRONMENTAL ENGINEERING Co Ltd
Current assignee: SHANGHAI BAIFENG ENVIRONMENTAL ENGINEERING Co Ltd
Priority date: 2011-03-09
Filing date: 2011-03-09
Publication date: 2011-06-01

Abstract

The invention provides an anaerobic reaction device, relating to the technical field of sewage treatment and solving the technical problems that the existing device is high in production cost, operation cost and sludge disposal expense, and is inconvenient for maintenance. The anaerobic device comprises an anaerobic pool, wherein a sludge pump is arranged outside the anaerobic pool; the anaerobic pool is internally provided with a negative pressure chamber, a muddy water dispersing tube and an automatic suction tube; the lower end tune port of the muddy water dispersing tube is converged inwardly and downwardly into a frustum-shaped pool bottom nozzle, and the lower tube wall of the muddy water dispersing tube is provided with multiple side nozzles; the negative pressure chamber is positioned right above the muddy water dispersing tube, the opening at the lower end of the negative pressure chamber connects a muddy water mixing tube, a primary compression tube and a secondary converging-diverging tube to the upper tube port of the muddy water dispersing tube; the feed tube port of the sludge pump stretches into the lower part of the pool cavity of the anaerobic pool, and the discharge tube of the sludge pump is connected with the negative pressure chamber; and the tube body of the automatic suction tube penetrates through the side wall of the negative pressure chamber. The anaerobic reaction device provided by the invention has the advantages of low production and operation cost and sludge disposal expense, and is convenient for maintenance.

Description

Anaerobic reaction device

Technical field

The present invention relates to sewage disposal technology, particularly relate to a kind of technology that is used for the anaerobic reaction device of anerobic sowage processing.

Background technology

Be provided with anaerobic processing device in most of sewage treatment project, as anaerobic processing devices such as UASB, IC, EGSB.Existing anaerobic processing device all is provided with an anaerobic pond, in anaerobic pond, be provided with the mud that contains anerobe, in order to make the sewage thorough mixing of bacterial classification, mud and fresh remittance, in anaerobic pond, also be provided with filler and assisting agitating apparatus, and water, gas, solid three-phase separator be set, therefore existing anaerobic processing device exists the manufacturing cost height, and the following mixing component of liquid level is when breaking down, below liquid level, keep in repair after needing to stop production, so maintaining is also very inconvenient.

In addition, because existing anaerobic processing device all is the sewage that adopts alr mode mixed strains, mud and fresh remittance, can can there be a lot of dead angle areas in therefore existing anaerobic processing device in anaerobic pond, bacterial classification in these dead angle areas, mud tend to mix inhomogeneous with the sewage of fresh remittance, in order to guarantee wastewater treatment efficiency, often need long mixing the time, the current consumption of therefore existing anaerobic processing device is also bigger, and its running cost is higher; And bacterial classification, mud mix the inhomogeneous organic degradation speed that exists with the tiny solid form that also can influence with the sewage of fresh remittance, makes that the outer discharge capacity of mud of existing anaerobic processing device is also bigger, and the sludge disposal expense is also higher relatively.

Summary of the invention

At the defective that exists in the above-mentioned prior art, technical problem to be solved by this invention provides a kind of low cost of manufacture, and maintaining is convenient, and running cost is low, the anaerobic reaction device that the sludge disposal expense is low.

In order to solve the problems of the technologies described above, a kind of anaerobic reaction device provided by the present invention, comprise anaerobic pond, be equipped with the sludge blanket that one deck contains anerobe at the bottom of the pond of described anaerobic pond, it is characterized in that: described anaerobic pond outside is provided with a sludge pump, is provided with a negative pressure chamber, a muddy water diffuser tube, a self-straw in the described anaerobic pond;

Described muddy water diffuser tube is the straight tube of a both ends open, and its pipe shaft is vertical, and its lower end mouth of pipe inwardly converges nozzle at the bottom of the pond of a taper type downwards, and tube wall upper edge, its underpart circumferential axis is arranged with and is communicated with its tube chamber and mouth a plurality of side nozzle of below outward;

Described negative pressure chamber is the hollow cavity of both ends open about in the of, be positioned at the muddy water diffuser tube directly over, its lower ending opening is connected in series a muddy water mixing tube, compressed pipe, scalable pipe of the secondary upper end mouth of pipe to the muddy water diffuser tube from top to bottom successively, and is communicated with the muddy water diffuser tube;

The sludge pump inlet pipe mouth of pipe of described sludge pump stretches into the cell cavity bottom of anaerobic pond, and its mud pumps the upper end open of pipe coupling negative pressure chamber;

Described self-straw both ends open, its pipe shaft runs through the sidewall of negative pressure chamber, and the mouth of pipe that is positioned at the negative pressure chamber outside is at the bottom of the pond of anaerobic pond.

Further, a described compressed pipe is a up big and down small taper type pipe fitting, the scalable pipe of described secondary be a middle part greatly, the little pipe fitting in two up and down.

Anaerobic reaction device provided by the invention, substituted assisting agitating apparatus in the existing anaerobic reaction device with sludge pump, do not need to add filler and triphase separator, its manufacturing cost is lower, and external sludge pump maintaining is also very convenient, this device utilizes the muddy water jet of the side nozzle ejection on the nozzle and bottom tube wall at the bottom of the pond of muddy water diffuser tube lower end to stir mud in the anaerobic pond pool bottom sludge layer, make the mud in the anaerobic pond, sewage and anerobe mix fully, and the what is more important top layer of drawing by self-straw by the supernatant liquor of uviolizing in anaerobic reaction device with muddy water mixing jetting at the bottom of the pond and after in whole pond, stirring, can quicken organic degraded to the existence of tiny solid form, can further reduce the outer discharge capacity of mud, and then reduction sludge disposal expense, and in anaerobic pond, can there be dead angle area yet, can guarantee bacterial classification, the sewage uniform mixing of mud and fresh remittance, its mixing time is shorter, it is little to have current consumption, the advantage that running cost is low.

Description of drawings

Fig. 1 is the structural representation of the anaerobic reaction device of the embodiment of the invention.

Embodiment

Below in conjunction with description of drawings embodiments of the invention are described in further detail, but present embodiment is not limited to the present invention, every employing analog structure of the present invention and similar variation thereof all should be listed protection scope of the present invention in.

As shown in Figure 1, a kind of anaerobic reaction device that the embodiment of the invention provided, comprise anaerobic pond 10, be equipped with the sludge blanket 9 that one deck contains anerobe at the bottom of the pond of described anaerobic pond 10, it is characterized in that: described anaerobic pond 10 outsides are provided with a sludge pump 12, are provided with a negative pressure chamber 1, a muddy water diffuser tube 6, a self-straw 2 in the described anaerobic pond 10;

Described muddy water diffuser tube 6 is straight tubes of a both ends open, its pipe shaft is vertical, its lower end mouth of pipe inwardly converges nozzle 8 at the bottom of the pond of a taper type downwards, and tube wall upper edge, its underpart circumferential axis is arranged with and is communicated with its tube chamber and mouth four side nozzle 7 of below outward;

Described negative pressure chamber 1 is the hollow cavity of both ends open about in the of, be positioned at muddy water diffuser tube 6 directly over, its lower ending opening is connected in series a muddy water mixing tube 3, compressed pipe 4, scalable pipe 5 of the secondary upper end mouth of pipe to muddy water diffuser tube 6 from top to bottom successively, and is communicated with muddy water diffuser tube 6;

Sludge pump inlet pipe 11 mouths of pipe of described sludge pump 12 stretch into the cell cavity bottom of anaerobic pond 10, and its mud pumps the upper end open that pipe 13 connects negative pressure chamber 1;

Described self-straw 2 both ends opens, its pipe shaft runs through the sidewall of negative pressure chamber 1, and the mouth of pipe that is positioned at the negative pressure chamber outside is at the bottom of the pond of anaerobic pond 10.

In the embodiment of the invention, a described compressed pipe 4 is up big and down small taper type pipe fittings, the scalable pipe 5 of described secondary be a middle part greatly, the little pipe fitting in two up and down.

When the embodiment of the invention is carried out sewage disposal, the mouth of pipe that self-straw is arranged in the negative pressure chamber outside sewage of anaerobic pond that must submerge, and be positioned at the upper strata of anaerobic pond sewage.

When the embodiment of the invention is carried out sewage disposal, start sludge pump earlier, sludge pump constantly extracts mud mixture in the anaerobic pond by its sludge pump pump inlet pipe, the mud mixture that sludge pump extracts pumps pipe through its mud and pumps into negative pressure chamber, mud mixture diffuses to form negative pressure after entering negative pressure chamber, the supernatant water that is positioned at the upper strata in the sewage in the anaerobic pond under the suction function of negative pressure chamber by self-straw negative suction chamber, and in negative pressure chamber, enter the mixing of muddy water mixing tube with the mud mixture that pumps into, being introduced into a compressed pipe after mixing finishes in the muddy water mixing tube once contracts, expand and expand, entering the scalable pipe of secondary again carries out secondary and contracts, expand and expand, and then enter the muddy water diffuser tube and compress aeration, last again at the bottom of the pond of muddy water diffuser tube lower end four side nozzle on nozzle and the bottom tube wall evenly spray, the muddy water that forms the stirring ejection is ejected at the bottom of the pond and in whole pond and stirs, make non-setting the rolling of mud in the anaerobic pond pool bottom sludge layer, reach mud, sewage and anerobe mix purpose fully, acceleration further reduces the outer discharge capacity of mud to the organic degraded that the tiny solid form exists.

The maximum service area of the embodiment of the invention is 16m ²The jet length of nozzle can reach about 2.5m at the bottom of the pond, mud stirs height and can reach more than the 8m, can guarantee mud, sewage and anerobe mix in the pond fully, and form metastable clear water layer on the top layer, thereby make the anaerobic sludge that enters later process obtain effectively catching, reduce the operating pressure of follow-up workshop section, and after the top layer of drawing by self-straw is ejected at the bottom of the pond by the supernatant liquor of uviolizing and stirs in whole pond, can quicken organic degraded to the existence of tiny solid form, can further reduce the outer discharge capacity of mud, existing relatively anaerobic reaction device, the outer discharge capacity of its mud can reduce more than 40%.

The embodiment of the invention is used in combination with the hydrolysis anaerobic pond, and the COD clearance is reached about 50%, and the SS clearance reaches more than 40%, and chroma removal rate reaches about 90%.

Claims

1. anaerobic reaction device, comprise anaerobic pond, be equipped with the sludge blanket that one deck contains anerobe at the bottom of the pond of described anaerobic pond, it is characterized in that: described anaerobic pond outside is provided with a sludge pump, is provided with a negative pressure chamber, a muddy water diffuser tube, a self-straw in the described anaerobic pond;

2. device according to claim 1 is characterized in that: a described compressed pipe is a up big and down small taper type pipe fitting, the scalable pipe of described secondary be a middle part greatly, the little pipe fitting in two up and down.