CN210736467U

CN210736467U - Sewage treatment system

Info

Publication number: CN210736467U
Application number: CN201921349146.1U
Authority: CN
Inventors: 吴庭安
Original assignee: Guangzhou Suzn Biology Technology Co ltd
Current assignee: Guangzhou Suzhen Environmental Technology Co.,Ltd.
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-06-12
Anticipated expiration: 2029-08-20

Abstract

The utility model relates to the field of sewage treatment, a sewage treatment system is disclosed, including electro-catalytic treatment district, the treatment district that just sinks, biochemical treatment district and disinfection treatment district, through the configuration optimization design, biochemical treatment district disposes at least a set of anaerobism pond and a plurality of groups's aerobic tank, the anaerobism pond is used for denitrogenation and dephosphorization, aerobic tank is used for removing the organic matter in the sewage, be provided with high-efficient biological elasticity filler in the anaerobism pond, be provided with the three-dimensional combination filler of elasticity in the aerobic tank, can three-dimensionally all-round evenly spread full cloth in the effective area, make gas, water, biomembrane obtain fully mixing infiltration contact exchange, improve the transfer rate and the utilization ratio of oxygen; through reasonable configuration, a water distribution device and an oxygenation aeration pipeline are arranged in the aerobic tank, the aerobic tank is aerated through a Rotz blower and an air pipeline, the internal circulation of the aerobic tank is increased, organic pollutants are fully degraded through biological oxidation and adsorption, and efficient treatment is achieved.

Description

Sewage treatment system

Technical Field

The utility model relates to a sewage treatment field, especially a sewage treatment system.

Background

Introduction of common sewage treatment processes:

(1) the sewage treatment facilities with daily treatment capacity of more than 20 ten thousand cubic meters (excluding 20 ten thousand cubic meters per day) are generally adopted by a conventional activated sludge method according to the recommendation of urban sewage treatment and pollution control technical policies. Other mature techniques may also be employed; sewage treatment facilities with daily treatment capacity of 10-20 ten thousand cubic meters can select mature processes such as a conventional activated sludge method, an oxidation ditch method, an SBR method, an AB method and the like; the sewage treatment facilities with daily treatment capacity below 10 ten thousand cubic meters can adopt technologies such as an oxidation ditch method, an SBR method, a hydrolytic aerobic method, an AB method, a biological filter method and the like, and can also adopt a conventional activated sludge method.

(2) According to the requirements of urban sewage treatment and pollution control technical policies, a secondary enhanced treatment process with strong dephosphorization and denitrification functions is adopted in areas with control requirements on nitrogen and phosphorus pollutants. The sewage treatment facilities with daily treatment capacity of more than 10 ten thousand cubic meters generally adopt technologies such as an A/O method, an A/A/O method and the like. Other equivalent techniques can also be judiciously selected; the sewage treatment facilities with daily treatment capacity below 10 ten thousand cubic meters can adopt an A/O method, an A/A/O method, an oxidation ditch method with dephosphorization and denitrification effects, an SBR method, a hydrolytic aerobic method, a biological filter method and the like.

(3) According to the permission of urban sewage treatment and pollution prevention technical policies, under the conditions of strictly evaluating environmental influence and meeting the requirements of national relevant standards and water body self-purification capacity, the treatment method of discharging urban sewage into the great river or deep sea can be judiciously adopted. When the effluent of the secondary treatment of the urban sewage can not meet the water environment requirement, the urban sewage can be further treated by utilizing available conditions such as wasteland, vacant land and the like and adopting natural purification technologies such as a land treatment system, a stable pond and the like in a conditional area.

The A/O method water treatment process has the following defects:

(1) because an independent sludge reflux system is not provided, sludge with unique functions cannot be cultured, and the degradation rate of substances difficult to degrade is low;

(2) in order to improve the denitrification efficiency, the internal circulation ratio must be increased, thereby increasing the operation cost. In addition, the internal circulation liquid comes from the aeration tank and contains a certain DO, so that the A section is difficult to maintain an ideal anoxic state, the denitrification effect is influenced, and the denitrification rate is difficult to reach 90%.

Disclosure of Invention

An object of the utility model is to provide a sewage treatment system to satisfy the purification treatment to municipal sewage, especially to the secondary strengthening treatment who contains nitrogen phosphorus sewage, optimize original process flow, improve water purification ability.

For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a, a sewage treatment system, included the electro-catalysis treatment zone, just heavy treatment area, biochemical treatment district and disinfection treatment area, the electro-catalysis treatment area just heavy treatment area, biochemical treatment district and disinfection treatment area between loop through sewer line interconnect, just heavy treatment area and biochemical treatment area between form the closed loop of circulation treatment through sewer line.

Wherein, the electro-catalysis processing area has included a plurality of sump wells and electro-catalysis equipment subassembly, and a plurality of sump wells are parallelly connected and distribute, and the sump well bottom is provided with the elevator pump, and the elevator pump passes through the sewer line and links to each other with the electro-catalysis equipment subassembly, and the electro-catalysis equipment subassembly has included the electro-catalysis oxidation pond, and the electro-catalysis oxidation pond both ends are provided with negative plate and anode plate, and the middle part is filled there is catalytic material, and the bottom is provided with the bagger, and the bagger top is provided with a plurality of agitators of group.

Wherein, just sinking the treatment area and having included equalizing basin and just sinking the pond, through sewer line intercommunication each other between equalizing basin and the just sinking pond, set up the water inlet on the just sinking pond, the equalizing basin bottom is provided with a plurality of sets of elevator pump, installs the blow off pipe on a plurality of sets of elevator pump respectively, is provided with the check valve on the blow off pipe, and a plurality of sets of blow off pipe link to each other with sewer line one end through the intercommunication valve, and the sewer line other end links to each other with the water inlet that just sinks the pond.

Wherein, the biochemical treatment district has included at least a set of anaerobism pond, the good oxygen pond and the sedimentation tank of a plurality of groups, be provided with high-efficient biological elasticity filler in the anaerobism pond, be provided with elasticity three-dimensional combination filler in the good oxygen pond, water distribution device and oxygenation aeration pipeline, the aeration pipeline that oxygenates is the matrix and arranges and set up in good oxygen pond bottom, water distribution device sets up in oxygenation aeration pipeline top, elasticity three-dimensional combination filler hangs below water distribution device, be located between water distribution device and the oxygenation aeration pipeline, be provided with the mud backwash pump in the sedimentation tank, the mud backwash pump passes through the mud pipeline and links to each other with the anaerobism pond.

Preferably, the biochemical treatment area also comprises a sludge tank, the sludge tank is communicated with the anaerobic tank and the primary sedimentation tank through a sludge pipeline, a plate-and-frame filter press is arranged outside the sludge tank, and the plate-and-frame filter press is communicated with the sludge tank through a self-contained pump and a sludge pipeline.

Preferably, the biochemical treatment area also comprises a plurality of sets of Rotz blowers, and the plurality of sets of Rotz blowers are connected with the oxygenation aeration pipeline through an air pipeline.

Wherein, the disinfection treatment area comprises a clean water tank and a disinfection tank, and the disinfection tank is an ultraviolet disinfection tank.

The utility model discloses following beneficial effect has:

1. the utility model discloses a configuration optimization design, biochemical treatment district disposes the good oxygen pond of a set of anaerobism pond and a plurality of groups at least, and the anaerobism pond is used for the nitrogen and phosphorus removal, and good oxygen pond is used for removing the organic matter in the sewage, is provided with high-efficient biological elasticity filler in the anaerobism pond, is provided with the three-dimensional combination of elasticity filler in the good oxygen pond, and the full cloth of can three-dimensional all-round evenly stretching in the effective area makes gas, water, biomembrane obtain fully mixing infiltration contact exchange, improves the transfer rate and the utilization ratio of oxygen.

2. Through reasonable configuration, a water distribution device and an oxygenation aeration pipeline are arranged in the aerobic tank, the aerobic tank is aerated through a Rotz blower and an air pipeline, the internal circulation of the aerobic tank is increased, organic pollutants are fully degraded through biological oxidation and adsorption, and efficient treatment is achieved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Description of the main part symbols:

1: a water collecting well, 2: lift pump, 3: electrocatalytic oxidation cell, 4: a regulating reservoir, 5: a primary sedimentation tank, 6: anaerobic tank, 7: aerobic tank, 8: sedimentation tank, 9: sludge reflux pump, 10: sludge impoundment, 11: roots blower, 12: clean water tank, 13: disinfection tank, 14: sewer line, 15: sludge piping, 16: air duct, 17: level controller, 18: a check valve.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

As shown in figure 1, the utility model discloses a sewage treatment system, included the electro-catalysis treatment zone, just heavy treatment area, biochemical treatment area and disinfection treatment area, the electro-catalysis treatment zone just heavy treatment area, biochemical treatment area and disinfection treatment area between loop through sewer line 14 interconnect, just heavy treatment area and biochemical treatment area between form the closed loop of circulation processing through sewer line 14.

The electrocatalysis treatment area comprises a plurality of water collecting wells 1 and an electrocatalysis equipment assembly, the water collecting wells 1 are distributed in parallel, a lifting pump 2 is arranged at the bottom of the water collecting well 1, the lifting pump 2 is connected with the electrocatalysis equipment assembly through a sewage pipeline 14, the electrocatalysis equipment assembly comprises an electrocatalysis oxidation tank 3, cathode plates and anode plates are arranged at two ends of the electrocatalysis oxidation tank 3, the middle part of the electrocatalysis oxidation tank is filled with a catalytic material, a mud bucket is arranged at the bottom of the electrocatalysis oxidation tank, and a plurality of groups of stirrers are arranged above the mud; the primary sedimentation treatment area comprises an adjusting tank 4 and a primary sedimentation tank 5, the adjusting tank 4 and the primary sedimentation tank 5 are mutually communicated through a sewage pipeline 14, a water inlet is formed in the primary sedimentation tank 5, a liquid level controller 17 is arranged in the middle of the adjusting tank 4, a plurality of groups of lifting pumps 2 are arranged at the bottom of the adjusting tank, a plurality of groups of sewage discharge pipes are respectively arranged on the plurality of groups of lifting pumps 2, check valves 18 are arranged on the sewage discharge pipes, the plurality of groups of sewage discharge pipes are connected with one end of the sewage pipeline 14 through communicating valves, and the other end of the sewage pipeline 14 is connected with the water inlet of the; the biochemical treatment area comprises at least one group of anaerobic tanks 6, a plurality of groups of aerobic tanks 7 and a sedimentation tank 8, wherein efficient biological elastic fillers are arranged in the anaerobic tanks 6, elastic three-dimensional combined fillers, a water distribution device and an oxygenation aeration pipeline are arranged in the aerobic tanks 7, the oxygenation aeration pipeline is arranged at the bottom of the aerobic tanks 7 in a matrix manner, the water distribution device is arranged above the oxygenation aeration pipeline, the elastic three-dimensional combined fillers are suspended below the water distribution device and positioned between the water distribution device and the oxygenation aeration pipeline, a sludge reflux pump 9 is arranged in the sedimentation tank 8, and the sludge reflux pump 9 is connected with the anaerobic tanks 6 through sludge pipelines 15; the biochemical treatment area also comprises a sludge tank 10, the sludge tank 10 is communicated with the anaerobic tank 6 and the primary sedimentation tank 5 through a sludge pipeline 15, a plate-and-frame filter press is arranged outside the sludge tank 10, and the plate-and-frame filter press is communicated with the sludge tank 10 through a self-contained pump and the sludge pipeline 15; the biochemical treatment area also comprises a plurality of sets of Rotz blowers 11, and the plurality of sets of Rotz blowers 11 are connected with an oxygenation aeration pipeline through an air pipeline 16; the disinfection treatment area comprises a clean water tank 12 and a disinfection tank 13, and the disinfection tank 13 is an ultraviolet disinfection tank.

The working principle is as follows:

after the domestic wastewater and the laboratory wastewater are collected by the water collecting well 1, the sewage is pumped and transferred into the electro-catalytic oxidation tank 3 by the lift pump 2, the organic pollutants in the sewage are electrolyzed and catalyzed by electrodes and catalytic materials in an electrocatalytic oxidation tank 3, then enter an adjusting tank 4 for homogenization and uniform amount, a pre-aeration system is arranged in the adjusting tank 4, then a signal is transmitted by a liquid level controller 17 and is sent to a primary sedimentation tank 5 by a lift pump 2 for sedimentation, the wastewater automatically flows to an anaerobic tank 6 for acidification, hydrolysis, nitrification and denitrification, the concentration of organic matters is reduced, partial ammonia nitrogen phosphorus is removed, and then the wastewater flows into an aerobic tank 7 for aerobic biochemical reaction, most organic pollutants are degraded through biological oxidation and adsorption, effluent automatically flows to the sedimentation tank 8 for solid-liquid separation, supernatant of the sedimentation tank 8 flows into the clean water tank 12, then flows into a disinfection tank 13, and is discharged after reaching the standard after killing harmful strains in water by an ultraviolet lamp. Wherein the sludge reflux pump 9 arranged in the sedimentation tank 8 partially refluxes the sludge in the sedimentation tank 8 to the anaerobic tank 6, the other part of the sludge is delivered to the sludge tank 10, the sludge is digested by a plate-and-frame filter press to be made into mud cakes and then is transported outwards at regular intervals, and the supernatant in the sludge tank 10 refluxes to the regulating tank 4 for retreatment.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.

Claims

1. The sewage treatment system is characterized by comprising an electro-catalytic treatment area, a primary sedimentation treatment area, a biochemical treatment area and a disinfection treatment area, wherein the electro-catalytic treatment area, the primary sedimentation treatment area, the biochemical treatment area and the disinfection treatment area are sequentially connected with one another through sewage pipelines, and a closed loop for circular treatment is formed between the primary sedimentation treatment area and the biochemical treatment area through the sewage pipelines.

2. The wastewater treatment system of claim 1, wherein: the electrocatalysis treatment area comprises a plurality of water collecting wells and electrocatalysis equipment components, the water collecting wells are distributed in parallel, a lifting pump is arranged at the bottom of each water collecting well and is connected with the electrocatalysis equipment components through a sewage pipeline, the electrocatalysis equipment components comprise an electrocatalysis oxidation tank, cathode plates and anode plates are arranged at two ends of the electrocatalysis oxidation tank, catalytic materials are filled in the middle of the electrocatalysis oxidation tank, a mud bucket is arranged at the bottom of the electrocatalysis oxidation tank, and a plurality of groups of stirrers are arranged above the mud bucket.

3. A wastewater treatment system according to claim 2, characterized in that: the primary sedimentation treatment area comprises an adjusting tank and a primary sedimentation tank, the adjusting tank and the primary sedimentation tank are mutually communicated through a sewage pipeline, a water inlet is formed in the primary sedimentation tank, a plurality of groups of lift pumps are arranged at the bottom of the adjusting tank, a plurality of groups of lift pumps are arranged on the lift pumps, a check valve is arranged on the sewage pipeline, a plurality of groups of sewage pipes are connected with one end of the sewage pipeline through a communication valve, and the other end of the sewage pipeline is connected with the water inlet of the primary sedimentation tank.

4. A wastewater treatment system according to claim 3, characterized in that: the biochemical treatment district aerobic tank and the sedimentation tank of at least a set of anaerobism pond, a plurality of groups have been included, the anaerobism pond in be provided with high-efficient biological elasticity filler, the aerobic tank in be provided with elasticity three-dimensional combination filler, water distribution device and oxygenate aeration pipeline, the aeration pipeline of oxygenating be the matrix and arrange and set up in aerobic tank bottom, the water distribution device set up in oxygenating aeration pipeline top, elasticity three-dimensional combination filler hang in water distribution device below, be located between water distribution device and the aeration pipeline of oxygenating, the sedimentation tank in be provided with the sludge reflux pump, the sludge reflux pump pass through the sludge conduit and link to each other with the anaerobism pond.

5. The wastewater treatment system of claim 4, wherein: the biochemical treatment area also comprises a sludge tank, the sludge tank is communicated with the anaerobic tank and the primary sedimentation tank through a sludge pipeline, a plate-and-frame filter press is arranged outside the sludge tank, and the plate-and-frame filter press is communicated with the sludge tank through a self-contained pump and a sludge pipeline.

6. The wastewater treatment system of claim 5, wherein: the biochemical treatment area also comprises a plurality of sets of Rotz air blowers, and the plurality of sets of Rotz air blowers are connected with the oxygenation aeration pipeline through air pipelines.

7. The wastewater treatment system of claim 1, wherein: the disinfection treatment area comprises a clean water tank and a disinfection tank, and the disinfection tank is an ultraviolet disinfection tank.