CN110590086A - On-line backwashing type cultivation sewage treatment equipment - Google Patents
On-line backwashing type cultivation sewage treatment equipment Download PDFInfo
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- CN110590086A CN110590086A CN201911110624.8A CN201911110624A CN110590086A CN 110590086 A CN110590086 A CN 110590086A CN 201911110624 A CN201911110624 A CN 201911110624A CN 110590086 A CN110590086 A CN 110590086A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
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- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention provides an online backwashing type culture sewage treatment device which comprises a filter tank, an anaerobic tank, a membrane biological reaction tank, a disinfection tank, a clean water tank and a sludge tank. The filtering tank is internally provided with a plurality of grating plates, and the filtering tank is provided with a lifting device for lifting the grating plates, so that the grating plates are convenient to maintain, and the filtering tank is convenient and flexible; the membrane biological reaction tank comprises a first membrane biological reaction tank and a second membrane biological reaction tank, the treatment work of the culture sewage can be carried out simultaneously, one of the membrane biological reaction tank and the second membrane biological reaction tank can be used for sewage treatment, and the other membrane biological reaction tank can be used for backwashing.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to an online backwashing type cultivation sewage treatment device.
Background
With the continuous development of economy, various water pollutions appear around our lives. Particularly in areas with more advanced animal husbandry. As the livestock excrements are more, the excrement needs to be cleaned by water, so that a large amount of water is wasted, and the environment and local water resources are seriously polluted. Once polluted, the water resource will seriously affect human health, so in order to keep the water resource from being polluted, the livestock farm needs to establish sewage treatment equipment.
The online backwashing type cultivation sewage treatment equipment in the prior art is large in size, low in purification efficiency, and particularly needs to be suspended when the sewage treatment equipment needs to be cleaned and maintained for a long time, so that the purification efficiency is seriously influenced. Waste residues and waste gases generated in the sewage treatment process can not be effectively treated, so that resource waste is caused.
Disclosure of Invention
The invention provides an online backwashing type aquaculture sewage treatment device, which does not need to pause the operation of the device when backwashing is needed, greatly improves the purification efficiency of sewage, greatly improves the utilization of waste residues and waste gases generated during sewage purification, and avoids resource waste.
The technical scheme of the invention is realized as follows: the on-line backwashing type culture sewage treatment equipment comprises a filtering tank for precipitating and filtering sewage, an anaerobic tank for removing nitrogen and phosphorus from the precipitated and filtered sewage, a membrane biological reaction tank for decomposing organic matters in the nitrogen and phosphorus removed sewage, a disinfection tank for disinfecting the membrane filtered sewage, a clean water tank for containing the disinfected sewage and a sludge tank for containing filtered waste residues;
a plurality of grating plates are arranged in the filter tank in a sliding manner, the apertures of the grating plates are sequentially reduced according to the water flow direction, a lifting device used for lifting the grating plates is arranged above the filter tank in a sliding manner, a filter tank sewage discharge port used for discharging sludge is arranged below the filter tank, and the filter tank sewage discharge port is communicated with the sludge tank;
the anaerobic tank is arranged in a closed manner, the anaerobic tank is communicated with the filter tank through a first connecting pipe, a lifting pump is fixedly arranged on the first connecting pipe, a stirrer driven by a stirring motor is rotatably arranged in the anaerobic tank, a first water pump is arranged in the anaerobic tank, the first water pump sends sewage to the membrane biological reaction tank through a second connecting pipe, an air outlet hole is further formed above the anaerobic tank, an anaerobic tank sewage discharge port is formed below the anaerobic tank, and the anaerobic tank sewage discharge port is communicated with the sludge tank;
the membrane biological reaction tank is provided with a first membrane biological reaction tank and a second membrane biological reaction tank, a first biological membrane component is arranged in the first membrane biological reaction tank, a first aeration device is arranged below the first biological membrane component, a third connecting pipe is connected above the first biological membrane component, the third connecting pipe is connected with a first branch water pipe and communicated with the disinfection tank, a first electromagnetic valve and a first self-priming pump are arranged on the first branch water pipe, the first electromagnetic valve is arranged at the upstream of the first self-priming pump, the third connecting pipe is also connected with a second branch water pipe and communicated with the clean water tank, a second electromagnetic valve and a first back-flushing pump for back flushing of the first biological membrane component are fixedly arranged on the second branch water pipe, and the second electromagnetic valve is arranged at the downstream of the first back-flushing pump; a second biological membrane component is arranged in the second membrane biological reaction tank, a second aeration device is arranged below the second biological membrane component, a fourth connecting pipe is connected above the second biological membrane component, the fourth connecting pipe is connected with a third branch water pipe and communicated with the disinfection tank, a third electromagnetic valve and a second self-priming pump are arranged on the third branch water pipe, the third electromagnetic valve is arranged at the upstream of the second self-priming pump, the fourth connecting pipe is also connected with a fourth branch water pipe and communicated with the clean water tank, a fourth electromagnetic valve and a second backwashing pump for backwashing the second biological membrane component are fixedly arranged on the fourth branch water pipe, and the fourth electromagnetic valve is arranged at the downstream of the second backwashing pump;
disinfect pond top and be equipped with a disinfectant that is used for puting in disinfectant and put in the case, install one in the disinfection pond will sewage is carried extremely in the disinfection pond the second water pump in clean water basin.
As an improvement of the invention, the lifting device comprises sliding guide rails arranged on two sides of the filtering tank, a lifting frame is slidably mounted on the sliding guide rails, a winding drum driven by a lifting motor is rotatably mounted on the lifting frame, a rope is wound on the winding drum, a lifting hook is arranged at one end of the rope, a lifting ring matched with the lifting hook is arranged on each grating plate, and the lifting motor is mounted on the lifting frame.
As an improvement of the invention, the stirrer comprises a stirring shaft connected with the stirring motor, and a plurality of stirring blades are arranged on the stirring shaft.
As an improvement of the invention, the first aeration device and the second aeration device respectively comprise an aeration pipe arranged at the bottom of the membrane biological reaction tank, each aeration pipe is provided with a plurality of aeration holes, and each aeration pipe is connected with an aeration fan.
As an improvement of the invention, the second connecting pipe is connected with a fifth branch water pipe to the first membrane biological reaction tank, and a fifth electromagnetic valve is fixedly installed on the fifth branch water pipe; the second connecting pipe is also connected with a sixth branch water pipe to the second membrane biological reaction tank, and a sixth electromagnetic valve is fixedly installed on the sixth branch water pipe.
As an improvement of the invention, a plurality of ribs are arranged in the filter tank, and the grating plate is slidably arranged between the two ribs.
As an improvement of the invention, the lifting motor is connected with the winding drum through a belt pulley and a belt.
By adopting the technical scheme, the invention has the beneficial effects that: the on-line backwashing type culture sewage treatment equipment comprises a filtering tank for precipitating and filtering sewage, an anaerobic tank for removing nitrogen and phosphorus from the precipitated and filtered sewage, a membrane biological reaction tank for decomposing organic matters in the nitrogen and phosphorus removed sewage, a disinfection tank for disinfecting the membrane filtered sewage, a clean water tank for containing the disinfected sewage and a sludge tank for containing filtered waste residues;
the filter tank is internally provided with a plurality of grating plates in a sliding manner, the apertures of the grating plates are sequentially reduced according to the water flow direction, sundries and large excrement in the culture sewage are blocked at the upper streams of the grating plates, the first connecting pipe is prevented from being blocked, a lifting device for lifting the grating plates is slidably arranged above the filter tank, when the grating plates need to be replaced or cleaned, the grating plates are lifted by the lifting device, time and labor are saved, a filter tank sewage discharge port for discharging the sludge is arranged below the filter tank, and the filter tank sewage discharge port is communicated with the sludge tank; debris that do not pass through the grid board and the waste residue that deposits here in through the timely row of filtering ponds drain to sludge impoundment, wait for follow-up utilization, both avoided the wasting of resources, prevented simultaneously again because of the grid board jam that the waste residue too many lead to in the filtering ponds.
The anaerobic tank is sealed, an anaerobic environment is created, nitrogen and phosphorus removal is facilitated, the anaerobic tank is communicated with the filter tank through a first connecting pipe, a lifting pump is fixedly installed on the first connecting pipe, a stirrer driven by a stirring motor is rotatably installed in the anaerobic tank, sewage in the anaerobic tank is stirred, the nitrogen and phosphorus removal rate of the culture sewage is accelerated, a first water pump is arranged in the anaerobic tank, the first water pump sends the sewage to the membrane biological reaction tank through a second connecting pipe, a gas outlet hole is further formed above the anaerobic tank and can be connected to the methane tank, an anaerobic tank sewage discharge port is formed below the anaerobic tank, and the anaerobic tank sewage discharge port is communicated with the sludge tank; can improve the utilization rate of waste gas and waste residue and avoid resource waste.
The membrane biological reaction tank is provided with a first membrane biological reaction tank and a second membrane biological reaction tank, a first biological membrane component is arranged in the first membrane biological reaction tank, a first aeration device is arranged below the first biological membrane component, a third connecting pipe is connected above the first biological membrane component, the third connecting pipe is connected with a first branch water pipe and communicated with the disinfection tank, a first electromagnetic valve and a first self-priming pump are arranged on the first branch water pipe, the first electromagnetic valve is arranged at the upstream of the first self-priming pump, the third connecting pipe is also connected with a second branch water pipe and communicated with the clear water tank, a second electromagnetic valve and a first back-flushing pump for the first biological membrane component are fixedly arranged on the second branch water pipe, and the second electromagnetic valve is arranged at the downstream of the first back-flushing pump; a second biological membrane component is arranged in the second membrane biological reaction tank, a second aeration device is arranged below the second biological membrane component, a fourth connecting pipe is connected above the second biological membrane component, the fourth connecting pipe is connected with a third branch water pipe and communicated with the disinfection tank, a third electromagnetic valve and a second self-priming pump are arranged on the third branch water pipe, the third electromagnetic valve is arranged at the upstream of the second self-priming pump, the fourth connecting pipe is also connected with a fourth branch water pipe and communicated with a clean water tank, a fourth electromagnetic valve and a second backwashing pump for backwashing the second biological membrane component are fixedly arranged on the fourth branch water pipe, and the fourth electromagnetic valve is arranged at the downstream of the second backwashing pump;
by adopting the structure, the first membrane biological reaction tank and the second membrane biological reaction tank can simultaneously purify the aquaculture sewage, so that the purification efficiency of the aquaculture sewage is improved; one of the first membrane biological reaction tank and the second membrane biological reaction tank can be used for sewage purification, and the other one can be used for back washing, so that back washing can be realized, sewage purification is not delayed, and the treatment rate of the aquaculture sewage is further improved; the backwashing pump is communicated with the clean water tank, and the treated culture sewage is utilized to perform backwashing work of the membrane reaction assembly, so that the utilization rate of the treated culture sewage is improved.
The disinfection pond top is equipped with a disinfectant input box that is used for puting in disinfectant, installs a second water pump that carries sewage to the clean water basin in will disinfecting the pond in the disinfection pond, carries out disinfection treatment to the sewage after the biomembrane filters, has improved the purification degree of breeding sewage.
Because hoisting device has a hoisting frame including setting up in the sliding guide of filtering ponds both sides, slidable mounting has a hoisting frame on the sliding guide, rotates on the hoisting frame and installs a reel by promoting motor drive, and the winding has the rope on the reel, and the one end of rope is equipped with a lifting hook, all is equipped with a rings with lifting hook looks adaptation on each grid board, promotes the motor and installs on the hoisting frame. When the grid plate is lifted, the lifting frame slides to the position of the grid plate required to be lifted, so that the grid plate lifting work can be carried out, the operation is flexible and convenient, and the maintenance efficiency of the grid plate is greatly improved.
The first aeration device and the second aeration device respectively comprise an aeration pipe arranged at the bottom of the membrane biological reaction tank, a plurality of aeration holes are formed in each aeration pipe, each aeration pipe is connected with an aeration fan, and the aeration fans continuously send air to the membrane biological reaction tank, so that the oxidative decomposition of microorganisms on the first biological membrane component and the second biological membrane component on organic matters in the aquaculture sewage is accelerated, and the treatment efficiency of the aquaculture sewage is improved.
The second connecting pipe is connected with a fifth branch water pipe to the first membrane biological reaction tank, and a fifth electromagnetic valve is fixedly arranged on the fifth branch water pipe; the second connecting pipe is also connected with a sixth branch water pipe to the second membrane biological reaction tank, and a sixth electromagnetic valve is fixedly arranged on the sixth branch water pipe. The water purification and back flushing work of the first membrane biological reaction tank and the second membrane biological reaction tank is controlled by the switch of the electromagnetic valve.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the lifting device;
wherein: 1-a filtering tank; 2-an anaerobic tank; 3-a membrane biological reaction tank; 4-a disinfection tank; 5-a clean water tank; 6-a sludge tank; 7-ribs; 8-a grid plate; 9-a first connection pipe; 10-a lifting device; 11-a sliding guide; 12-a hoisting frame; 13-a hoisting motor; 14-a reel; 15-a hook; 16-a hoisting ring; 17-a belt pulley; 18-a belt; 19-a sewage draining outlet of the filtering tank; 20-a lift pump; 21-a stirring motor; 22-a stirrer; 23-stirring shaft; 24-stirring blades; 25-a first water pump; 26-a second connecting tube; 27-a fifth branch water pipe; 28-a first membrane biological reaction tank; 29-a fifth solenoid valve; 30-a sixth branch water pipe; 31-a second membrane biological reaction tank; 32-a sixth solenoid valve; 33-air outlet holes; 34-a sewage discharge outlet of the anaerobic tank; 35-a first biofilm assembly; 36-a first aeration device; 37-a third connecting tube; 38-a first branch water pipe; 39-a first solenoid valve; 40-a first self-priming pump; 41-a second branch water pipe; 42-a second solenoid valve; 43-a first backwash pump; 44-a second biofilm assembly; 45-a second aeration device; 46-a fourth connecting tube; 47-a third branch water pipe; 48-third solenoid valve; 49-a second self-priming pump; 50-a fourth branch water pipe; 51-a fourth solenoid valve; 52-a second backwash pump; 53-an aerator pipe; 54-aeration holes; 55-an aeration fan; 56-disinfectant feeding box; 57-second water pump.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The on-line backwashing type aquaculture sewage treatment equipment shown in fig. 1 to 2 comprises a filtering tank 1 for precipitating and filtering sewage, an anaerobic tank 2 for removing nitrogen and phosphorus from the precipitated and filtered sewage, a membrane biological reaction tank 3 for decomposing organic matters from the nitrogen and phosphorus removed sewage, a disinfection tank 4 for disinfecting the membrane filtered sewage, a clear water tank 5 for containing the disinfected sewage and a sludge tank 6 for containing filtered waste residues.
A plurality of convex edges 7 are arranged in the filtering tank 1, a grating plate 8 is slidably mounted between every two adjacent convex edges 7, the aperture of the grating plate 8 is sequentially reduced according to the water flow direction, sundries and large excrement in the culture sewage are blocked at the upper part of the grating plate 8, the blockage of a first connecting pipe 9 is avoided, a lifting device 10 used for lifting the grating plate 8 is slidably mounted above the filtering tank 1, the lifting device 10 comprises sliding guide rails 11 arranged at two sides of the filtering tank 1, a lifting frame 12 is slidably mounted on the sliding guide rails 11, a winding drum 14 driven by a lifting motor 13 is rotatably mounted on the lifting frame 12, a rope is wound on the winding drum 14, a lifting hook 15 is arranged at one end of the rope, each grating plate 8 is provided with a lifting ring 16 matched with the lifting hook 15, the lifting motor 13 is mounted on the lifting frame 12, and the lifting motor 13 is connected with the winding drum 14 through a belt pulley 17 and a belt 18. When the grid plate 8 needs to be replaced or cleaned, the lifting frame 12 slides to the position of the grid plate 8 needing to be lifted, the grid plate 8 is lifted by the lifting device 10, the operation is flexible and convenient, time and labor are saved, and the maintenance efficiency of the grid plate 8 is greatly improved. A filter tank sewage discharge outlet 19 for discharging sludge is arranged below the filter tank 1, and the filter tank sewage discharge outlet 19 is communicated with the sludge tank 6; sundries which do not pass through the grating plate 8 and waste residues precipitated in the grating plate are timely discharged to the sludge tank 6 through the filtering tank sewage discharge outlet 19 to wait for subsequent utilization, so that not only is resource waste avoided, but also the grating plate 8 blockage caused by too much waste residues in the filtering tank 1 is prevented.
The anaerobic tank 2 is arranged in a closed manner, so that an anaerobic environment is created, nitrogen and phosphorus removal is facilitated, the anaerobic tank 2 is communicated with the filter tank 1 through a first connecting pipe 9, a lifting pump 20 is fixedly installed on the first connecting pipe 9, a stirrer 22 driven by a stirring motor 21 is rotatably installed in the anaerobic tank 2, the stirrer 22 comprises a stirring shaft 23 connected with the stirring motor 21, a plurality of stirring blades 24 are arranged on the stirring shaft 23, the stirring shaft 23 is used for stirring sewage in the anaerobic tank 2, the nitrogen and phosphorus removal speed of the cultured sewage is accelerated, a first water pump 25 is arranged in the anaerobic tank 2, the first water pump 25 is used for delivering the sewage to the membrane biological reaction tank 3 through a second connecting pipe 26, the second connecting pipe 26 is connected with a fifth branch water pipe 27 to a first membrane biological reaction tank 28, and a fifth electromagnetic valve 29 is fixedly installed on the fifth branch water pipe 27; the second connecting pipe 26 is further connected with a sixth branch water pipe 30 to a second membrane biological reaction tank 31, and a sixth electromagnetic valve 32 is fixedly installed on the sixth branch water pipe 30. The water purification and back flushing work of the first membrane biological reaction tank 28 and the second membrane biological reaction tank 31 is controlled by the switch of the electromagnetic valve. An air outlet hole 33 is also arranged above the anaerobic tank 2, the air outlet hole 33 can be connected to the methane tank, an anaerobic tank sewage outlet 34 is arranged below the anaerobic tank 2, and the anaerobic tank sewage outlet 34 is communicated with the sludge tank 6; can improve the utilization rate of waste gas and waste residue and avoid resource waste.
The membrane biological reaction tank 3 is provided with a first membrane biological reaction tank 28 and a second membrane biological reaction tank 31, and the first membrane biological reaction tank 28 and the second membrane biological reaction tank 31 can simultaneously purify the aquaculture sewage, so that the purification efficiency of the aquaculture sewage is improved; one of the first membrane biological reaction tank 28 and the second membrane biological reaction tank 31 can be used for sewage purification, and the other one can be used for back washing, so that the back washing can be realized, the sewage purification is not delayed, and the treatment rate of the aquaculture sewage is further improved; a first biological membrane component 35 is arranged in the first membrane biological reaction tank 28, a first aeration device 36 is arranged below the first biological membrane component 35, a third connecting pipe 37 is connected above the first biological membrane component 35, the third connecting pipe 37 is connected with a first branch water pipe 38 and communicated with the disinfection tank 4, a first electromagnetic valve 39 and a first self-priming pump 40 are arranged on the first branch water pipe 38, the first electromagnetic valve 39 is arranged at the upstream of the first self-priming pump 40, the third connecting pipe 37 is also connected with a second branch water pipe 41 and communicated with the clean water tank 5, a second electromagnetic valve 42 and a first back-flushing pump 43 for back flushing of the first biological membrane component 35 are fixedly arranged on the second branch water pipe 41, and the second electromagnetic valve 42 is arranged at the downstream of the first back-flushing pump 43; a second biological membrane component 44 is arranged in the second membrane biological reaction tank 31, a second aeration device 45 is arranged below the second biological membrane component 44, a fourth connecting pipe 46 is connected above the second biological membrane component 44, the fourth connecting pipe 46 is connected with a third branch water pipe 47 to be communicated with the disinfection tank 4, a third electromagnetic valve 48 and a second self-priming pump 49 are arranged on the third branch water pipe 47, the third electromagnetic valve 48 is arranged at the upstream of the second self-priming pump 49, the fourth connecting pipe 46 is also connected with a fourth branch water pipe 50 to be communicated with the clean water tank 5, a fourth electromagnetic valve 51 and a second backwashing pump 52 for backwashing the second biological membrane component are fixedly arranged on the fourth branch water pipe 50, the fourth electromagnetic valve 51 is arranged at the downstream of the second backwashing pump 52, the first backwashing pump 43 and the second backwashing pump 52 are respectively communicated with the clean water tank 5, and the backwashing work of the membrane reaction component is carried out by using the treated culture sewage, the utilization rate of the treated aquaculture sewage is improved. (ii) a
The first aeration device 36 and the second aeration device 45 both comprise an aeration pipe 53 arranged at the bottom of the membrane biological reaction tank 3, each aeration pipe 53 is provided with a plurality of aeration holes 54, each aeration pipe 53 is connected with an aeration fan 55, and the aeration fan 55 continuously sends air to the membrane biological reaction tank 3, so that the oxidative decomposition of microorganisms on the first biological membrane component 35 and the second biological membrane component on organic matters in the aquaculture sewage is accelerated, and the treatment efficiency of the aquaculture sewage is improved.
The disinfectant feeding box 56 for feeding disinfectant is arranged above the disinfection tank 4, the second water pump 57 for conveying sewage in the disinfection tank 4 to the clean water tank 5 is installed in the disinfection tank 4, the sewage after biological membrane filtration is disinfected, and the purification degree of the aquaculture sewage is improved.
The culture sewage is conveyed to the filter tank 1 through a conveying pipeline, then is precipitated at the upstream of the grating plate 8 in the filter tank 1 and is filtered through the grating plate 8, sundries and large excrement in the culture sewage are stopped by the grating plate 8 and then are precipitated, then is discharged to the sludge tank 6 through the filter tank drain outlet 19, the culture sewage filtered through the grating plate 8 is conveyed to the anaerobic tank 2 through the lifting pump 20 for nitrogen and phosphorus removal, the stirrer 22 stirs the culture sewage to accelerate the process of nitrogen and phosphorus removal, the generated waste gas is conveyed to the methane tank through the gas outlet for utilization, and the first water pump 25 conveys the culture sewage after nitrogen and phosphorus removal to the membrane biological reaction tank 3 for organic matter decomposition.
When the fifth electromagnetic valve 29 and the sixth electromagnetic valve 32 are both in an open state, the first membrane biological reaction tank 28 and the second membrane biological reaction tank 31 can work simultaneously, at the moment, the first electromagnetic valve 39 and the third electromagnetic valve 48, the first aeration device 36 and the second aeration device 45 are also in an open state, the second electromagnetic valve 42 and the fourth electromagnetic valve 51 are in a closed state, when the membrane reaction components need to be backwashed, the fifth electromagnetic valve 29, the first electromagnetic valve 39, the fourth electromagnetic valve 51 and the first aeration device 36 are all in an open state, and the sixth electromagnetic valve 32, the second electromagnetic valve 42, the third electromagnetic valve 48 and the second aeration device 45 are all in a closed state, so that the first water pump 25 sends the sewage to the first membrane biological reaction tank 28 for purification treatment, and the second membrane biological reaction tank 31 is backwashed.
The first self-priming pump 40 works, the first backwashing pump 43 stops running, the sewage treated by the first biological membrane assembly 35 is sent to the disinfection tank 4 for disinfection, and the sewage is sent to the clean water tank 5 after disinfection so as to be discharged after reaching the standard. The second backwashing pump 52 works, the second self-sucking pump 49 stops working, and the water in the clean water tank 5 is conveyed to the second biological membrane component through the second self-sucking pump 49 for backwashing. After the backwashing of the second membrane biological reaction tank 31 is finished, the backwashing work can be carried out on the first membrane biological reaction tank 28, and at the moment, the sewage treatment is carried out on the second membrane biological reaction tank 31.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The on-line backwashing type culture sewage treatment equipment is characterized by comprising a filtering tank, an anaerobic tank, a membrane biological reaction tank, a disinfection tank, a clean water tank and a sludge tank, wherein the filtering tank is used for precipitating and filtering sewage;
a plurality of grating plates are arranged in the filter tank in a sliding manner, the apertures of the grating plates are sequentially reduced according to the water flow direction, a lifting device used for lifting the grating plates is arranged above the filter tank in a sliding manner, a filter tank sewage discharge port used for discharging sludge is arranged below the filter tank, and the filter tank sewage discharge port is communicated with the sludge tank;
the anaerobic tank is arranged in a closed manner, the anaerobic tank is communicated with the filter tank through a first connecting pipe, a lifting pump is fixedly arranged on the first connecting pipe, a stirrer driven by a stirring motor is rotatably arranged in the anaerobic tank, a first water pump is arranged in the anaerobic tank, the first water pump sends sewage to the membrane biological reaction tank through a second connecting pipe, an air outlet hole is further formed above the anaerobic tank, an anaerobic tank sewage discharge port is formed below the anaerobic tank, and the anaerobic tank sewage discharge port is communicated with the sludge tank;
the membrane biological reaction tank is provided with a first membrane biological reaction tank and a second membrane biological reaction tank, a first biological membrane component is arranged in the first membrane biological reaction tank, a first aeration device is arranged below the first biological membrane component, a third connecting pipe is connected above the first biological membrane component, the third connecting pipe is connected with a first branch water pipe and communicated with the disinfection tank, a first electromagnetic valve and a first self-priming pump are arranged on the first branch water pipe, the first electromagnetic valve is arranged at the upstream of the first self-priming pump, the third connecting pipe is also connected with a second branch water pipe and communicated with the clean water tank, a second electromagnetic valve and a first back-flushing pump for back flushing of the first biological membrane component are fixedly arranged on the second branch water pipe, and the second electromagnetic valve is arranged at the downstream of the first back-flushing pump; a second biological membrane component is arranged in the second membrane biological reaction tank, a second aeration device is arranged below the second biological membrane component, a fourth connecting pipe is connected above the second biological membrane component, the fourth connecting pipe is connected with a third branch water pipe and communicated with the disinfection tank, a third electromagnetic valve and a second self-priming pump are arranged on the third branch water pipe, the third electromagnetic valve is arranged at the upstream of the second self-priming pump, the fourth connecting pipe is also connected with a fourth branch water pipe and communicated with the clean water tank, a fourth electromagnetic valve and a second backwashing pump for backwashing the second biological membrane component are fixedly arranged on the fourth branch water pipe, and the fourth electromagnetic valve is arranged at the downstream of the second backwashing pump;
disinfect pond top and be equipped with a disinfectant that is used for puting in disinfectant and put in the case, install one in the disinfection pond will sewage is carried extremely in the disinfection pond the second water pump in clean water basin.
2. The on-line back-flushing aquaculture sewage treatment device of claim 1, wherein said lifting device comprises sliding rails disposed on both sides of said filter tank, said sliding rails are slidably mounted with a lifting frame, said lifting frame is rotatably mounted with a drum driven by a lifting motor, said drum is wound with a rope, one end of said rope is provided with a hook, each of said grid plates is provided with a hanging ring adapted to said hook, and said lifting motor is mounted on said lifting frame.
3. The on-line back-flush aquaculture sewage treatment plant of claim 1, wherein said agitator comprises an agitator shaft connected to said agitator motor, said agitator shaft having a plurality of agitator blades thereon.
4. The on-line backwashing type aquaculture sewage treatment facility of claim 1, wherein the first aeration device and the second aeration device each comprise an aeration pipe arranged at the bottom of the membrane biological reaction tank, each aeration pipe is provided with a plurality of aeration holes, and each aeration pipe is connected with an aeration fan.
5. The on-line back-flushing aquaculture sewage treatment plant of claim 1, wherein said second connecting pipe is connected to a fifth branch water pipe to said first membrane biological reaction tank, said fifth branch water pipe being fixedly equipped with a fifth electromagnetic valve; the second connecting pipe is also connected with a sixth branch water pipe to the second membrane biological reaction tank, and a sixth electromagnetic valve is fixedly installed on the sixth branch water pipe.
6. The on-line backwash type aquaculture sewage treatment apparatus of claim 1 wherein said filter tank has a plurality of ribs formed therein, said grid plate being slidably mounted between said ribs.
7. The on-line backwash type aquaculture sewage treatment apparatus of claim 2 wherein said lifting motor is connected to said drum by a pulley and a belt.
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| CN201911110624.8A CN110590086A (en) | 2019-11-14 | 2019-11-14 | On-line backwashing type cultivation sewage treatment equipment |
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| CN201911110624.8A CN110590086A (en) | 2019-11-14 | 2019-11-14 | On-line backwashing type cultivation sewage treatment equipment |
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| CN112931389A (en) * | 2021-02-08 | 2021-06-11 | 山东康科润海洋科技有限公司 | Water treatment system for fish culture based on industrial production |
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