CN209276327U - Integrated CASS biological tank process spent water processing equipment - Google Patents

Abstract

The utility model discloses an integrated CASS biological pool process sewage treatment equipment, including a flocculation pool, a reaction pool, a biological filter pool and an equipment room. The flocculation pool is divided into an aeration stirring area and a vertical flow sedimentation area. The vertical flow sedimentation area is connected, and the reaction pool is divided into a pretreatment area and a CASS treatment area. The pretreatment area is respectively connected with the upper part of the vertical flow sedimentation area and the bottom of the CASS treatment area. The bottom of the pretreatment area and the CASS treatment area is provided with a first Aeration system, the upper part of the CASS treatment area is equipped with a decanter, the decanter is connected to the bottom of the biological filter, and the equipment room is equipped with a raw water lifting pump, a fan unit and an electric control cabinet; the sewage treatment equipment CASS of the utility model The sewage treatment process is simple, the floor area is small, and the investment is low. The sewage is successively processed through the aeration mixing zone, the vertical flow sedimentation zone, the pretreatment zone, the CASS treatment zone and the biological filter for multi-level process treatment, which can effectively improve the sewage concentration. Organic matter removal rate and effluent water quality are good.

Description

Integrated CASS biological pool process sewage treatment equipment

technical field

The utility model belongs to the technical field of sewage treatment equipment, in particular to an integrated CASS biological pool process sewage treatment equipment.

Background technique

CASS (Cyclic Activated Sludge System) is the abbreviation of the cyclic activated sludge method, which is developed on the basis of SBR, that is, a biological selector is added to the water inlet of the SBR tank to realize continuous water inlet (sedimentation period, Continuous water inflow during the drainage period), intermittent drainage. The CASS process integrates reaction, precipitation, drainage, and functions. The degradation of pollutants is a push-flow process in time, while microorganisms are in the periodic changes of aerobic, anoxic, and anaerobic, so as to achieve the removal of pollutants. At the same time, it also has good denitrification and phosphorus removal functions.

The traditional CASS sewage treatment equipment is unreasonably arranged, occupies a large area, and has high investment costs. In addition, the impact of water flow disturbance during the sewage treatment process is large, the anaerobic and aerobic reactions are insufficient, and the sewage treatment effect is not good. Therefore, an integrated CASS biological pool process sewage treatment equipment is proposed. The sewage treatment equipment CASS sewage treatment process is simple, the floor area is small, and the investment is low. The sewage successively passes through the aeration mixing zone, the vertical flow sedimentation zone, and the pretreatment zone. , CASS treatment area and biological filter for multi-level process treatment, which effectively improves the removal rate of organic matter in sewage, and the effluent quality of sewage after treatment by this sewage treatment equipment is good.

Utility model content

Aiming at the deficiencies of the existing technology, the utility model provides an integrated CASS biological pool process sewage treatment equipment. The sewage treatment equipment CASS sewage treatment process is simple, the floor area is small, and the investment is low. The flow sedimentation area, pretreatment area, CASS treatment area and biofilter are used for multi-level process treatment, which effectively improves the removal rate of organic matter in sewage. After the sewage is treated by the sewage treatment equipment, the effluent water quality is good.

The utility model is realized through the following technical solutions:

Integrated CASS biological tank process sewage treatment equipment, including flocculation tank, reaction tank, biological filter and equipment room; the flocculation tank is divided into an aeration stirring zone and a vertical flow sedimentation zone, and the aeration stirring zone is connected to the vertical flow sedimentation zone The aeration and stirring area is equipped with a perforated aeration and stirring device, and the aeration and stirring area is connected to the water inlet pipe, and the vertical flow sedimentation area is equipped with a vertical flow sedimentation system; the reaction tank is divided into a pretreatment area and a CASS treatment area. The area is connected with the upper part of the vertical flow sedimentation area, and the pretreatment area is connected with the bottom of the CASS treatment area. The CASS treatment area provides reaction gas to promote the organic pollutants in the sewage to be oxidized and decomposed by microorganisms. The upper part of the CASS treatment area is equipped with a decanter, which is used to discharge the clear water in the upper layer of the CASS treatment area; the bottom of the biofilter The decanter is connected with the CASS treatment area, and the clean water treated by the CASS treatment area can enter the biofilter for further treatment. The upper part of the biofilter is provided with a drain; the equipment room is equipped with a raw water lifting pump and a fan unit and the electric control cabinet, the perforated aeration stirring device, the raw water lift pump and the fan unit are electrically connected with the electric control cabinet respectively, and the perforated aeration stirring device, the raw water lift pump and the fan are controlled through the electric control cabinet, and the raw water lift pump is used to transfer the The sewage is pumped into the aeration mixing zone through the water inlet pipe for treatment, and the fan unit is used to provide air source for the first aeration system;

During sewage treatment, the sewage enters the aeration mixing zone through the water inlet pipe, and the sewage enters the vertical flow sedimentation zone after being fully aerated and stirred in the aeration mixing zone, and enters the pretreatment zone after being decelerated by the vertical flow sedimentation system, and the sewage passes through the pretreatment zone The rapid transfer mechanism of microbial enzymes quickly adsorbs most of the soluble organic matter in the sewage, and the pretreated sewage in the pretreatment area enters the CASS treatment area for further degradation by microorganisms, and the activated sludge gradually sinks to the bottom of the tank, and the upper water in the CASS treatment area becomes Clean, clean water flows into the biofilter through the decanter, and the clean water can be further filtered in the biofilter and discharged from the upper outlet of the biofilter; the sewage treatment equipment CASS sewage treatment process is simple, the floor area is small, The investment is low, the removal rate of organic matter is high after multi-level process treatment, and the quality of effluent water is good. The sewage treatment equipment can carry out continuous treatment of continuous influent water.

Further, the upper part of the pretreatment area is provided with a water distribution pipe, and one end of the water distribution pipe is connected with the upper part of the vertical flow sedimentation area, and the sewage in the vertical flow sedimentation area enters the pretreatment area through the water distribution pipe, and the water distribution pipe can reduce the sewage entering the pretreatment area. Fluctuations in water flow during pretreatment of the zone.

Further, the water distribution pipe is provided with a plurality of water outlet holes, so that the sewage in the vertical flow sedimentation area enters the upper area of the pretreatment area evenly, and reduces water flow disturbance.

Further, the sewage treatment equipment also includes a sludge tank, which is arranged on the top of the equipment room, which can effectively reduce the equipment footprint.

Further, a sludge return system is provided between the pretreatment area, the CASS treatment area and the sludge pool, and the sludge return system can pump the activated sludge settled in the pretreatment area and the CASS treatment area into the sludge return pool, and also The activated sludge in the sludge return tank can be supplemented to the pretreatment area and the CASS treatment area to promote microbial degradation.

Further, the biofilter is provided with a ceramsite layer, and the clear water entering the biofilter from the CASS treatment area can be further filtered through the ceramsite layer.

Further, the bottom of the biological filter is provided with a second aeration system, and the second aeration system is connected with the fan unit, which can provide a source of air to the biological filter through the second aeration system, and is suitable for entering the biological filter. The clean water is further aerated.

Further, an ultraviolet disinfection tube is provided in the equipment room, and the ultraviolet disinfection tube is connected with the drain of the biological filter, and the water discharged from the biological filter can be further disinfected through the ultraviolet disinfection tube.

Further, the water inlet of the decanter is higher than the outlet of the biofilter.

The beneficial effects of the utility model are: the integrated CASS bio-pool process sewage treatment equipment of the utility model, the sewage treatment equipment CASS sewage treatment process is simple, the floor area is small, the investment is low, and it passes through the aeration stirring area, the vertical Flow sedimentation area, pretreatment area, CASS treatment area and biofilter for multi-level process treatment, which effectively improves the removal rate of organic matter in sewage. After the sewage is treated by the sewage treatment equipment, the quality of the effluent is good. The sewage treatment equipment can carry out continuous treatment. Continuous water treatment can effectively improve the efficiency of sewage treatment.

Description of drawings

In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the specific implementation or the prior art. Throughout the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, elements or parts are not necessarily drawn in actual scale.

Fig. 1 is a front structural schematic diagram of the utility model.

Fig. 2 is a top view of the utility model.

In the attached drawings: 1-flocculation tank, 11-aeration stirring area, 12-vertical flow sedimentation area, 13-perforated aeration stirring device, 14-inlet pipe, 15-vertical flow sedimentation system, 2-reaction tank, 21- Pretreatment area, 22-CASS treatment area, 23-decanter, 24-water distribution pipe, 3-biological filter, 31-drain outlet, 32-ceramic layer, 4-equipment room, 41-raw water lift pump, 42 -Fan unit, 43-Electric control cabinet, 44-Ultraviolet disinfection pipe, 51-First aeration system, 52-Second aeration system, 6-Sludge tank, 7-Sludge return system.

Detailed ways

Embodiments of the technical solutions of the present utility model will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present utility model more clearly, so they are only examples, and should not be used to limit the protection scope of the present utility model.

In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "inner", "outer", "upper", "lower", "top", "bottom" etc. are based on those shown in the accompanying drawings. Orientation or positional relationship is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the utility model. limit.

As shown in Figure 1-2, the integrated CASS biological tank process sewage treatment equipment includes a flocculation tank 1, a reaction tank 2, a biofilter 3, an equipment room 4 and a sludge tank 6; the flocculation tank 1 is divided into aeration Stirring zone 11 and vertical flow sedimentation zone 12, aeration stirring zone 11 is connected with vertical flow sedimentation zone 12, aeration stirring zone 11 is provided with perforated aeration stirring device 13, and aeration stirring zone 11 is connected with water inlet pipe 14, vertical The flow sedimentation area 12 is provided with a vertical flow sedimentation system 15; the reaction tank 2 is divided into a pretreatment area 21 and a CASS treatment area 22, and the top of the pretreatment area 21 is provided with a water distribution pipe 24, and one end of the water distribution pipe 24 is connected to the vertical flow sedimentation The upper part of the area 12 is connected, and the sewage in the vertical flow sedimentation area 12 enters the pretreatment area 21 through the water distribution pipe 24. The water distribution pipe 24 can reduce the water flow fluctuation generated when the sewage enters the pretreatment area 21. The pretreatment area 21 and the CASS treatment area 22 bottoms are connected, the bottom of the pretreatment area 21 and the CASS treatment area 22 is provided with a first aeration system 51, the first aeration system 51 is used to provide reaction gas to the pretreatment area 21 and the CASS treatment area 22, to promote sewage The organic pollutants in the biofilter are oxidized and degraded by microorganisms, the top of the CASS treatment area 22 is provided with a decanter 23, and the decanter 23 is used to discharge the clear water in the upper layer of the CASS treatment area 22; the bottom of the biofilter 3 passes through the decanter 23 communicates with the CASS treatment area 22, the biofilter 3 is provided with a ceramsite layer 32, and the bottom of the ceramsite layer 32 is provided with a second aeration system 52, the second aeration system 52 is connected with the fan unit 42, and is controlled by the CASS The clear water entering the biofilter 3 from the treatment area 22 is further aerated by the second aeration system 52 and further filtered by the ceramsite layer 32. The upper part of the biofilter 3 is provided with a drain 31; the equipment room 4 It is equipped with raw water lifting pump 41, fan unit 42, electric control cabinet 43 and ultraviolet disinfection pipe. Control the perforated aeration mixing device 13, the raw water lifting pump 41 and the fan, the raw water lifting pump 41 is used to pump the sewage to be treated into the aeration mixing zone 11 through the water inlet pipe 14 for processing, and the fan unit 42 is used to aerate the first The system 51 provides an air source, and the ultraviolet sterilizing pipe 44 communicates with the outlet 31 of the biofilter 3, and the water discharged from the biofilter 3 can be further sterilized through the ultraviolet sterilizing pipe 44; the sludge pool 6 is arranged in the equipment room The top of 4 can effectively reduce the floor area of the sewage treatment equipment; a sludge return system 7 is arranged between the pretreatment area 21, the CASS treatment area 22 and the sludge pool 6, and the sludge return system 7 can pretreat The activated sludge settled in the zone 21 and the CASS treatment zone 22 is pumped into the sludge tank 6, and the activated sludge in the sludge tank 6 can also be supplemented to the pretreatment zone 21 and the CASS treatment zone 22 to promote microbial degradation.

In this embodiment, the water distribution pipe 24 is provided with a plurality of water outlet holes, so that the sewage in the vertical flow sedimentation area 12 enters the upper area of the pretreatment area 21 uniformly, reducing water flow disturbance.

In this embodiment, the water inlet of the decanter 23 is higher than the outlet 31 of the biological filter 3 .

The working principle of this embodiment: during sewage treatment, the sewage enters the aeration mixing zone 11 through the water inlet pipe 14, and the sewage enters the vertical flow sedimentation zone 12 after being fully aerated and stirred in the aeration mixing zone 11, and the sewage is treated by the vertical flow sedimentation system 15 After that, it enters the pretreatment area 21 through the water distribution pipe 24, and the sewage rapidly absorbs most of the soluble organic matter in the sewage through the rapid transfer mechanism of microbial enzymes in the pretreatment area 21. After further degradation treatment, the activated sludge gradually sinks to the bottom of the tank, the upper layer water in the CASS treatment area 22 becomes clear, and the clean water flows into the bottom of the biological filter 3 through the decanter 23, and the clear water passes through the second step in the upward return process of the biological filter 3. The second aeration system 52 conducts aeration treatment and ceramsite filtration treatment, and enters the ultraviolet sterilizing pipe 44 from the upper drain 31 of the biofilter 3 , and discharges after being sterilized by the ultraviolet sterilizing pipe 44 . The CASS sewage treatment process of the sewage treatment equipment is simple, occupies a small area, and has low investment. The hierarchical process treatment effectively improves the removal rate of organic matter in the sewage. After the sewage is treated by the sewage treatment equipment, the effluent water quality is good. The sewage treatment equipment can carry out continuous inflow and continuous treatment, effectively improving the efficiency of sewage treatment.

In the description of the utility model, a large number of specific details have been explained. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure the understanding of this description.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present utility model. , which should be included in the claims of the utility model and the scope of the specification.

Claims (8)

1. Integrated CASS biological tank process sewage treatment equipment, including flocculation tank (1), reaction tank (2), biological filter tank (3) and equipment room (4), characterized in that: the flocculation tank (1) is divided into It is an aeration stirring area (11) and a vertical flow sedimentation area (12), the aeration stirring area (11) is connected with the vertical flow sedimentation area (12), and the aeration stirring area (11) is equipped with a perforated aeration stirring device ( 13), and the aeration stirring area (11) is connected to the water inlet pipe (14), the vertical flow sedimentation area (12) is equipped with a vertical flow sedimentation system (15), and the reaction tank (2) is divided into a pretreatment area (21) and the CASS treatment area (22), the pretreatment area (21) is connected with the upper part of the vertical flow sedimentation area (12), the pretreatment area (21) is connected with the bottom of the CASS treatment area (22), the pretreatment area (21) and The bottom of the CASS treatment area (22) is provided with a first aeration system (51), and the first aeration system (51) is used to provide reaction gas to the pretreatment area (21) and the CASS treatment area (22), and the CASS treatment area (22) is provided with a decanter (23), the bottom of the biofilter (3) communicates with the CASS treatment area (22) through the decanter (23), and the upper part of the biofilter (3) is provided with There is a drain (31), and the equipment room (4) is equipped with a raw water lifting pump (41), a fan unit (42) and an electric control cabinet (43), a perforated aeration stirring device (13), a raw water lifting pump ( 41) and the fan unit (42) are electrically connected with the electric control cabinet (43) respectively. 2. The integrated CASS biological pool process sewage treatment equipment according to claim 1, characterized in that: the upper part of the pretreatment area (21) is provided with a water distribution pipe (24), and one end of the water distribution pipe (24) is connected to the vertical The upper part of the flow sedimentation zone (12) is connected. 3. The integrated CASS biological pool process sewage treatment equipment according to claim 1, characterized in that: the sewage treatment equipment also includes a sludge pool (6), and the sludge pool (6) is arranged in the equipment room (4) the top of. 4. The integrated CASS biological tank process sewage treatment equipment according to claim 3, characterized in that: there is a sewage tank between the pretreatment area (21), the CASS treatment area (22) and the sludge pool (6). Mud return system (7). 5. The integrated CASS bio-tank process sewage treatment equipment according to claim 1, characterized in that: the bio-filter (3) is provided with a ceramsite layer (32). 6. The integrated CASS biological tank process sewage treatment equipment according to claim 1 or 5, characterized in that: the bottom of the biological filter (3) is provided with a second aeration system (52), and the second aeration The system (52) is connected to the fan unit (42). 7. The integrated CASS biological pool process sewage treatment equipment according to claim 1, characterized in that: the equipment room (4) is provided with an ultraviolet disinfection tube (44), and the ultraviolet disinfection tube (44) is connected with the biofilter (3) drain outlets (31) are connected. 8. The integrated CASS biological tank process sewage treatment equipment according to claim 1, characterized in that: the water inlet of the decanter (23) is higher than the outlet (31) of the biofilter (3).