CN217173390U

CN217173390U - Multistage biochemical MBBR sewage treatment device

Info

Publication number: CN217173390U
Application number: CN202123248018.8U
Authority: CN
Inventors: 蒋莲; 贾晓龙; 张金福; 杨海波; 蒋学余
Original assignee: JIANGSU YUTONG ENVIRONMENTAL PROTECTION EQUIPMENTCO Ltd
Current assignee: JIANGSU YUTONG ENVIRONMENTAL PROTECTION EQUIPMENTCO Ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-08-12
Anticipated expiration: 2031-12-22

Abstract

The utility model belongs to the technical field of the biochemical sewage application of dispersion, specifically disclose multistage biochemical MBBR sewage treatment device, including box bottom plate, first box, second box, inlet, liquid outlet, transitional coupling pipe, first aeration intake pipe, first aeration control valve, second aeration intake pipe and second aeration control valve etc.. The beneficial effects of the utility model reside in that: the design structure is reasonable, the sewage treatment of the whole structure is efficient, the energy consumption is low, and the occupied area is low; according to the water pollution degree of the distributed domestic sewage, MBBR membranes are respectively filled, so that the domestic sewage is in aeration zones, anoxic zones and anaerobic zones which are obviously arranged at all levels, and the degradation of organic pollutants, nitrogen removal and phosphorus removal are realized; the gradient filtration-saving area is arranged at the tail end, and the membrane group device is arranged in the disinfection tank, so that the pollution problem of the MBBR membrane is solved, the service life of the MBBR membrane is prolonged, and the water quality of tail water reaches the first grade A standard of pollutant discharge Standard of urban Sewage treatment plant (GB 18918-2002).

Description

Multistage biochemical MBBR sewage treatment device

Technical Field

The utility model belongs to the technical field of dispersion domestic sewage treatment uses, concretely relates to multistage biochemical MBBR sewage treatment device is particularly useful for the water pollution treatment of distributed domestic sewage.

Background

Domestic sewage is wastewater discharged in daily life of residents and mainly comes from residential buildings and public buildings, such as houses, institutions, schools, hospitals, shops, public places, industrial enterprise toilets and the like. The pollutants contained in the domestic sewage are mainly organic matters (such as protein, carbohydrate, fat, urea, ammonia nitrogen and the like) and a large amount of pathogenic microorganisms (such as parasitic ova, enteroinfectious viruses and the like). Organic matters existing in domestic sewage are extremely unstable and easily decomposed to generate offensive odor. Bacteria and pathogens propagate in large quantities by taking organic matters in domestic sewage as nutrition, and can cause epidemic of infectious diseases. Therefore, domestic sewage must be treated before being discharged.

The existing domestic sewage treatment equipment is not suitable for water pollution treatment of town distributed domestic sewage, and mainly has the advantages of low treatment efficiency, poor effect, large energy consumption of the treatment equipment, large occupied area and the like.

Therefore, based on the above problem, the utility model provides a multistage biochemical MBBR sewage treatment device.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing a multistage biochemical MBBR sewage treatment device, the problem that the quality of water pollution treatment of solving current distributed domestic sewage exists.

The technical scheme is as follows: the utility model provides a multi-stage biochemical MBBR sewage treatment device, which comprises a box body bottom plate, a first box body, a second box body, a liquid inlet, a liquid outlet, a transitional connecting conduit, a first aeration air inlet pipe, a first aeration control valve, a second aeration air inlet pipe and a second aeration control valve; the first box body and the second box body are symmetrically arranged on a box body bottom plate; the liquid inlet and the liquid outlet are respectively arranged on the outer walls of the end surfaces of the first box body and the second box body; two ends of the transitional connecting conduit are respectively connected with the side walls of the other ends of the first box body and the second box body; the first aeration air inlet pipe and the first aeration control valve are respectively arranged on the first box body.

According to the technical scheme, the first box body consists of five box bodies which are connected in sequence, wherein the five box bodies are sequentially arranged to be an anaerobic and anoxic zone, an aerobic zone, an anaerobic and anoxic zone, an aerobic zone and an anaerobic and anoxic zone; the second box body consists of five box bodies which are connected in sequence, and the five box bodies are sequentially arranged into an aerobic zone, an anaerobic and anoxic zone, an aerobic zone, a precipitation coarse filtration zone and a disinfection fine filtration zone, MBBR membranes are respectively filled in the aerobic zone, the anaerobic and anoxic zone, the aerobic zone, the precipitation coarse filtration zone and the disinfection fine filtration zone, wherein the five box bodies are sequentially arranged into a ladder shape, and sewage flows in the five box bodies in sequence; the minimum anaerobism of the first box of notch cuttype is greater than the high size in the highest end aerobic zone of notch cuttype second box with anoxic zone height dimension, and wherein, the minimum of first box is the anaerobism and the anoxic zone of transitional coupling pipe one side.

According to the technical scheme, the lower parts of the side walls of the symmetry planes of the first box body and the second box body are respectively provided with an emptying valve.

This technical scheme, be provided with backward flow submersible sewage pump on the thick filtration district of sediment of second box, the both ends of backward flow pipe are connected with the anaerobism of first box and anoxic zone lateral wall, backward flow submersible sewage pump respectively, and wherein, the anaerobism that the backward flow pipe is connected is located inlet one side with anoxic zone lateral wall.

According to the technical scheme, the first box body and the second box body are respectively provided with four first observation windows and four second observation windows.

Compared with the prior art, the utility model discloses a multistage biochemical MBBR sewage treatment device's beneficial effect lies in: 1. the design structure is reasonable, the sewage treatment of the whole structure is efficient, the energy consumption is low, and the occupied area is small; 2. according to the water quality pollution degree of the distributed domestic sewage, MBBR membranes are respectively filled in each zone, so that the domestic sewage is in aeration zones, anoxic zones and anaerobic zones which are obviously arranged at all levels, and the degradation of organic pollutants, nitrogen removal and phosphorus removal are efficiently realized; 3. the gradient filtration-saving area is arranged at the tail end, and the membrane group device is arranged in the disinfection tank, so that the pollution problem of the MBBR membrane is well solved, the service life of the MBBR membrane is greatly prolonged, and simultaneously, the quality of tail water is ensured to reach the first-class A standard of pollutant discharge Standard of municipal wastewater treatment plant (GB 18918-.

Drawings

FIG. 1 is a schematic view of the top view structure of the multi-stage biochemical MBBR sewage treatment equipment of the present invention.

Detailed Description

The invention will be further elucidated with reference to the drawings and the specific embodiments.

Examples

The multi-stage biochemical MBBR sewage treatment equipment shown in FIG. 1 comprises a box bottom plate 1, a first box 7, a second box 11, a liquid inlet 8, a liquid outlet 12, a transitional connecting conduit 13, a first aeration air inlet pipe 2, a first aeration control valve 10, a second aeration air inlet pipe 14 and a second aeration control valve 15;

the first box body 7 and the second box body 11 are symmetrically arranged on the box body bottom plate 1;

the liquid inlet 8 and the liquid outlet 12 are respectively arranged on the outer walls of the end surfaces of the first box body 7 and the second box body 11;

two ends of the transitional connecting pipe 13 are respectively connected with the side walls of the other ends of the first box body 7 and the second box body 11;

the first aeration air inlet pipe 2 and the first aeration control valve 10 are respectively arranged on the first box body 7.

The multistage biochemical MBBR sewage treatment equipment with the structure is preferred, the first box body 7 consists of five box bodies which are sequentially connected, and MBBR membranes are respectively filled in an anaerobic and anoxic zone, an aerobic zone, an anaerobic and anoxic zone, an aerobic zone and an anaerobic and anoxic zone which are sequentially arranged, wherein the five box bodies are sequentially arranged into a step shape, and sewage flows in the five box bodies (the height sizes of the anaerobic and anoxic zone, the aerobic zone, the anaerobic and anoxic zone, the aerobic zone and the anaerobic and anoxic zone are sequentially decreased);

the second box body 11 consists of five box bodies which are connected in sequence, and is sequentially provided with an aerobic zone, an anaerobic and anoxic zone, an aerobic zone, a precipitation coarse filtration zone and a disinfection fine filtration zone, wherein MBBR membranes are respectively filled in the aerobic zone, the anaerobic and anoxic zone, the aerobic zone, the precipitation coarse filtration zone and the disinfection fine filtration zone, the five box bodies are sequentially provided with a ladder type, and sewage flows in the five box bodies in sequence (the height sizes of the aerobic zone, the anaerobic and anoxic zone, the aerobic zone, the precipitation coarse filtration zone and the disinfection fine filtration zone are sequentially decreased);

the height dimension of the anaerobic and anoxic zone at the lowest end of the stepped first box 7 is greater than the height dimension of the aerobic zone at the highest end of the stepped second box 11, wherein the lowest end of the first box 7 is the anaerobic and anoxic zone on one side of the transition connecting pipe 13.

Preferably, the lower parts of the symmetrical surface side walls of the first box body 7 and the second box body 11 are respectively provided with an emptying valve 9 for cleaning the first box body 7 and the second box body 11.

The multistage biochemical MBBR sewage treatment device of this structure is preferred, is provided with backward flow dive sewage pump 6 on the sediment coarse filtration district of second box 11, and the both ends of backward flow pipe 16 are connected with the anaerobism and the anoxic zone lateral wall of first box 7, backward flow dive sewage pump 6 respectively, and wherein, the anaerobism that backward flow pipe 16 connects is located inlet 8 one side with the anoxic zone lateral wall for in the anaerobism and the anoxic zone that the sewage suction that will deposit the coarse filtration district sediment is located inlet 8 one side in the first box 7, carry out the circulation processing once more.

Preferably, the first box 7 and the second box 11 are respectively provided with four first observation windows 7-1 and four second observation windows 11-1 for observing the sewage states in the first box 7 and the second box 11 so as to discharge faults and ensure the safety of sewage treatment of the first box 7 and the second box 11.

Multistage biochemical MBBR sewage treatment device (novel multistage biochemical A) with the structure ^X -O ^Y MBBR sewage treatment equipment), an anaerobic and anoxic zone (an X-grade A zone) and an aerobic zone (a Y-grade O zone) thoroughly solve the daily dilemma of distributed domestic sewage treatment and implement higher standard discharge, fill up the technical blank in the field, and have great popularization value in distributed places such as railway station zones, subway stations, expressway service areas, civil aviation station buildings, new rural villages and the like.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. Multistage biochemical MBBR sewage treatment device which characterized in that: comprises a box body bottom plate (1), a first box body (7), a second box body (11), a liquid inlet (8), a liquid outlet (12), a transition connecting conduit (13), a first aeration air inlet pipe (2), a first aeration control valve (10), a second aeration air inlet pipe (14) and a second aeration control valve (15); the first box body (7) and the second box body (11) are symmetrically arranged on the box body bottom plate (1); the liquid inlet (8) and the liquid outlet (12) are respectively arranged on the outer walls of the end surfaces of the first box body (7) and the second box body (11); two ends of the transition connecting guide pipe (13) are respectively connected with the side walls of the other ends of the first box body (7) and the second box body (11); the first aeration air inlet pipe (2) and the first aeration control valve (10) are respectively arranged on the first box body (7).

2. The multistage biochemical MBBR sewage treatment plant of claim 1, characterized in that: the first box body (7) consists of five box bodies which are connected in sequence, and the five box bodies are sequentially arranged into an anaerobic and anoxic zone, an aerobic zone, an anaerobic and anoxic zone, an aerobic zone and an anaerobic and anoxic zone, wherein MBBR membranes are respectively filled in the anaerobic and anoxic zone, the aerobic zone, the anaerobic and anoxic zone, the aerobic zone and the anaerobic and anoxic zone, wherein the five box bodies are sequentially arranged into a step shape, and sewage flows in the five box bodies in sequence; the second box body (11) consists of five box bodies which are connected in sequence, and is sequentially provided with an aerobic zone, an anaerobic and anoxic zone, an aerobic zone, a precipitation coarse filtration zone and a disinfection fine filtration zone, wherein MBBR membranes are respectively filled in the aerobic zone, the anaerobic and anoxic zone, the aerobic zone, the precipitation coarse filtration zone and the disinfection fine filtration zone, the five box bodies are sequentially provided with a ladder type, and sewage flows in the five box bodies in sequence; the minimum of the first box of notch cuttype (7) anaerobism and anoxic zone height dimension are greater than the maximum of notch cuttype second box (11) aerobic zone height dimension, and wherein, the minimum of first box (7) is the anaerobism and the anoxic zone of transitional coupling pipe (13) one side.

3. The multistage biochemical MBBR sewage treatment plant of claim 1, characterized in that: and the lower parts of the side walls of the symmetrical surfaces of the first box body (7) and the second box body (11) are respectively provided with an emptying valve (9).

4. The multistage biochemical MBBR sewage treatment plant of claim 1, characterized in that: and a backflow submersible sewage pump (6) is arranged on the sedimentation coarse filtration area of the second box body (11), two ends of a backflow guide pipe (16) are respectively connected with the anaerobic and anoxic area side wall of the first box body (7) and the backflow submersible sewage pump (6), and the anaerobic and anoxic area side wall connected with the backflow guide pipe (16) is positioned on one side of the liquid inlet (8).

5. The multistage biochemical MBBR sewage treatment plant of claim 1 or 3, wherein: the first box body (7) and the second box body (11) are respectively provided with four first observation windows (7-1) and four second observation windows (11-1).