CN115536156A - Domestic sewage treatment integrated device - Google Patents
Domestic sewage treatment integrated device Download PDFInfo
- Publication number
- CN115536156A CN115536156A CN202211376504.4A CN202211376504A CN115536156A CN 115536156 A CN115536156 A CN 115536156A CN 202211376504 A CN202211376504 A CN 202211376504A CN 115536156 A CN115536156 A CN 115536156A
- Authority
- CN
- China
- Prior art keywords
- tank
- integrated reactor
- contact oxidation
- sedimentation regulating
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention belongs to the field of rural domestic sewage treatment, and particularly relates to a rural distributed domestic sewage treatment integrated device which comprises a high-level septic tank, a sedimentation regulating tank and an integrated reactor. Wherein: the integrated reactor comprises an anaerobic tank, an anoxic tank and a contact oxidation tank, the high-level septic tank, the sedimentation regulating tank and the integrated reactor are sequentially connected in series from left to right, the height difference of the upper surface of the high-level septic tank and the upper surface of the sedimentation regulating tank is 50-55cm, the height difference of the upper surface of the sedimentation regulating tank and the upper surface of the integrated reactor is 50-55cm, and sewage can be guaranteed to freely flow to the next facility only under the action of gravity. The invention realizes a structure integrating multiple functions of anaerobic/anoxic, aerobic, biological contact oxidation, precipitation and the like in a small reactor, completes the functions of aeration, oxygenation, aeration stirring, air stripping reflux and the like by a pump, degrades organic pollutants and simultaneously synchronously nitrifies and denitrifies nitrogen.
Description
Technical Field
An integrated device for domestic sewage treatment, which belongs to the field of rural domestic sewage treatment.
Background
Rural domestic sewage has characteristics such as emission point dispersion, emission are little, quality of water and water volume fluctuation are big, and there is the difference in urban sewage pollutant composition, concentration, and traditional sewage treatment process is not suitable for.
Disclosure of Invention
The invention aims to solve the problems and provides an integrated domestic sewage treatment device.
The technical scheme of the invention is as follows:
the utility model provides a domestic sewage handles integrated device, includes high-order septic tank, sedimentation equalizing basin, integration reactor, wherein: the integrated reactor comprises an anaerobic tank, an anoxic tank and a contact oxidation tank, the high-level septic tank, the sedimentation regulating tank and the integrated reactor are sequentially connected in series from left to right, the height difference between the upper surface of the high-level septic tank and the upper surface of the sedimentation regulating tank is 50-55cm, the height difference between the upper surface of the sedimentation regulating tank and the upper surface of the integrated reactor is 50-55cm, and sewage can be guaranteed to freely flow to the next facility only under the action of gravity.
As a preferable technical scheme, the high-level septic tank is of a square tank body structure, a first water outlet is arranged at the upper part of the side wall of one side close to the sedimentation regulating tank, a flow pump is arranged between the high-level septic tank and the sedimentation regulating tank, the flow pump is connected with a water inlet of the flow pump through a first water pipe, a second water pipe is connected with the sedimentation regulating tank through a water outlet of the flow pump, and a first flow control valve is arranged at one end, close to the high-level septic tank, of the first water pipe; the water inlet quantity of the integrated reactor can be controlled by adjusting the flow rate of the flow pump according to the actual operation requirement and the water inlet quantity.
As a preferred technical scheme, the high-level septic tank is of a square tank body structure, and is long (in the x-axis direction): width (y-axis direction): height (z-axis direction) =1:1:1, the high-level septic tank is made of PE materials.
As a preferred technical scheme, the sedimentation regulating tank is of a rectangular tank body structure, a water inlet is formed in the lower portion of the side wall of one side close to the high-position septic tank, the outside of the water inlet is connected with a flow pump through a second water pipe, a second water outlet is formed in the upper portion of the side wall of one side, close to the integrated reactor, of the sedimentation regulating tank, the outside of the second water outlet is connected with a third water pipe, the integrated reactor is connected with the sedimentation regulating tank through the third water pipe, and the third water pipe extends to the position, 5-8cm away from the bottom surface, in the anaerobic tank.
As a preferred technical scheme, the sedimentation regulating tank has a rectangular tank body structure, and is long (x-axis direction): width (y-axis direction): height (z-axis direction) =1:1 to 1.5: 2-2.5, a first cover plate is arranged at the top of the sedimentation regulating tank, and the tank body and the first cover plate of the sedimentation regulating tank are both made of PE.
As an optimal technical scheme, 2 or more than 2 sewage baffle plates are arranged below a water inlet on one side wall of the sedimentation regulating tank and a second water outlet on the opposite side wall of the sedimentation regulating tank, the sewage baffle plates are arranged in a staggered mode, the included angle between each sewage baffle plate and the corresponding side wall of the sedimentation regulating tank is 55-60 degrees, and a first cover plate is arranged at the top of the sedimentation regulating tank.
As a preferred technical scheme, the sewage baffling baffle plates are arranged in a relative staggered manner; the included angle between the sewage baffling baffle and the side wall of the sedimentation regulating tank is 55-60 degrees, and the projection parts of the sewage baffling baffles on the horizontal plane are overlapped.
As a preferable technical scheme, the width (y-axis direction) of the sewage baffling baffle is the same as the width (y-axis direction) of the sedimentation regulating tank, and the length (x-axis direction) of the sewage baffling baffle is 2/3-3/4 of the length (x-axis direction) of the sedimentation regulating tank.
As a preferred technical scheme, when the sewage baffling baffle is arranged more than 2, the lowest sewage baffling baffle is 10-20 cm away from the bottom surface of the sedimentation regulating tank, and the highest sewage baffling baffle is 6-8 cm away from the second water outlet of the sedimentation regulating tank.
As a preferable technical scheme, the integrated reactor is connected with the sedimentation regulating tank through a third water pipe, and the third water pipe extends to the position, 5-8cm away from the bottom surface, in the anaerobic tank of the integrated reactor.
As a preferred technical scheme, the integrated reactor is a circular tank body, the top of the integrated reactor is provided with a third cover plate, the bottom of the integrated reactor is designed to be a cone, and fixing rings are uniformly distributed on the third cover plate above the biological contact oxidation tank along the circumference at equal intervals.
As a preferred technical scheme, the integrated reactor is respectively an anaerobic tank, an anoxic tank and a contact oxidation tank from inside to outside, the anaerobic tank is of a cylindrical tank structure, the anoxic tank and the contact oxidation tank are of circular tank structures, and the volume ratio of the anaerobic tank to the anoxic tank to the contact oxidation tank is V-anaerobic tank to V-anoxic tank to V-contact oxidation tank = 1.
As a preferable technical scheme, the anaerobic tank is closed at the bottom of the anaerobic tank, the top of the anaerobic tank is communicated with a first water passing weir at the top of the anaerobic tank, the anaerobic tank is closed at the top of the contact oxidation tank, and the bottom of the anaerobic tank is communicated with a second water passing weir arranged at the bottom of the anaerobic tank.
As a preferable technical scheme, the water flow direction in the anaerobic tank is an up-flow type, the water flow direction in the anoxic tank is a down-flow type, and the water flow direction in the contact oxidation tank is an up-flow type.
As a preferred technical scheme, the wall of the anoxic tank is fixed on the inner side wall of the contact oxidation tank through a support rod, 3-4 support rods are uniformly distributed along the periphery of the wall of the contact oxidation tank, water baffles are arranged along the periphery of the bottom of the wall of the anoxic tank, and the water baffles are obliquely arranged and form an included angle of 140-150 degrees with the wall of the anoxic tank.
As a preferable technical scheme, the three-dimensional spiral biological rope curtain type filling material is hung in the contact oxidation pond, the three-dimensional spiral biological rope curtain type filling material is hung on a third cover plate through a fixing ring, and the three-dimensional spiral biological rope curtain type filling material is purchased from a type B of a type of a Kidi group of Japan, and has the single-end width (y-axis direction) 1950mm and the single-end length (x-axis direction) 600mm.
As a preferable technical scheme, the bottom of the contact oxidation tank is provided with a microporous nano aeration pipe, the microporous nano aeration pipe is arranged along the bottom of the contact oxidation tank in a direction parallel to the circumferential line, is fixed on the side wall of the contact oxidation tank through a pipe clamp, and is connected with an external aeration pump through the aeration pipe to perform oxygenation aeration.
The preferable technical scheme is characterized in that a nitrifying liquid return pipe is arranged at the top end of the outer part of the contact oxidation tank wall and is connected with the biological contact oxidation tank and the anaerobic tank, and a third water outlet is formed in the upper part of the side wall of the contact oxidation tank far away from the sedimentation regulating tank.
Compared with the prior art/device, the invention has the beneficial effects that:
the device includes high-order septic tank, sedimentation equalizing basin, integration reactor, wherein: the integrated reactor comprises an anaerobic tank, an anoxic tank and a contact oxidation tank, the high-level septic tank, the sedimentation regulating tank and the integrated reactor are sequentially connected in series from left to right, and a certain height difference exists between two adjacent facilities of the high-level septic tank, the sedimentation regulating tank and the integrated reactor, so that sewage can be ensured to freely flow to the next facility without the help of external force; the integrated device adopts cylindrical and circular ring design, so that water flow in the device is in a circulating flow state, and the problem of a dead water area in the device is avoided. The integrated reactor is provided with a nitrifying liquid return pipe, the reflux ratio is 200-400%, and the denitrification efficiency is improved by 25-30%; the specific surface area of the three-dimensional spiral biological rope curtain type filler suspended in the contact oxidation pond reaches 4000 to 5000m 2 /m 3 The number of microorganisms is more traditional A 2 The O process is improved by 2 to 4 times. The invention ensures that a small-sized reactor is provided with a structure integrating multiple functions of anaerobic property, anoxic property, aerobic property, sedimentation and the like, the functions of aeration, oxygenation, aeration stirring, air stripping reflux and the like are completed by one pump, and the synchronous nitrification and denitrification nitrogen removal are carried out while organic pollutants are degraded.
Drawings
FIG. 1 is a cross-sectional view of the structure of the device of the present invention;
FIG. 2 is a schematic view of a sewage baffle of the apparatus of the present invention;
FIG. 3 is a schematic view of an integrated reactor cover plate and packing retaining ring of the apparatus of the present invention;
FIG. 4 is a schematic diagram of the arrangement of aeration pipes of the apparatus of the present invention;
FIG. 5 is a schematic view of the wall fixing of a contact oxidation tank of the apparatus of the present invention.
Detailed Description
The invention will be further elucidated with reference to the drawings of the invention.
As shown in fig. 1, a multistage integrated device for decentralized domestic sewage treatment in rural areas comprises a high-level septic tank, a sedimentation regulating tank and an integrated reactor, wherein: the integrated reactor comprises an anaerobic tank, an anoxic tank and a contact oxidation tank, wherein the high-level septic tank, the sedimentation regulating tank and the integrated reactor are sequentially connected in series from left to right, a certain height difference exists between two adjacent facilities of the high-level septic tank, the sedimentation regulating tank and the integrated reactor, and sewage can be ensured to freely flow to the next facility without the help of external force.
The device has the advantages that: and (3) refluxing the nitrified liquid in the aerobic pool at the rear section of the AAO process to the anaerobic pool or the anoxic pool at the front section of the process, wherein the nitrified liquid contains nitrate nitrogen generated by oxidizing ammonia nitrogen by nitrifying bacteria, and the nitrate nitrogen can be mixed with organic matters in the inlet water in the anaerobic pool or the anoxic pool after the nitrified liquid is refluxed to the front end, and denitrifying bacteria are used for denitrifying the nitrate nitrogen to realize total nitrogen removal. The nitration liquid is generally between 200 and 400 percent; the efficiency is high; the process has wide application range; the sludge expansion and the sludge backflow are avoided, and the management is simple and convenient; impact resistance and strong adaptability; the film forming is simple and the starting is fast; the energy-saving effect is obvious; the sludge yield is low.
The high-level septic tank, the sedimentation regulating tank and the integrated reactor are sequentially connected in series from left to right, the height difference between the horizontal height of the bottom surface of the high-level septic tank and the horizontal height of the top surface of the sedimentation regulating tank is 50-60 cm, and the height difference between the horizontal height of the bottom surface of the sedimentation regulating tank and the horizontal height of the top surface of the integrated reactor is 50-60 cm;
a first water outlet is formed in the upper portion of the side wall of one side, close to the sedimentation regulating tank, of the high-level septic tank, a flow pump is arranged between the high-level septic tank and the sedimentation regulating tank, the high-level septic tank is connected with a water inlet of the flow pump through a first water pipe, a second water pipe is connected with the sedimentation regulating tank through a water outlet of the flow pump, and a first flow control valve is arranged at one end, close to the high-level septic tank, of the first water pipe; the lower part of the side wall of the sedimentation regulating tank close to one side of the high-level septic tank is provided with a water inlet, the outside of the water inlet is connected with a flow pump through a second water pipe, the upper part of the side wall of the sedimentation regulating tank close to one side of the integrated reactor is provided with a second water outlet, and the outside of the second water outlet is connected with a third water pipe; 2 or more than 2 sewage baffle plates are arranged above a water inlet on the side wall of the sedimentation regulating tank close to the high-level septic tank and below a second water outlet on the side wall opposite to the high-level septic tank, the sewage baffle plates are arranged in a relative staggered manner, and the included angle between each sewage baffle plate and the side wall of the sedimentation regulating tank is 55-60 degrees;
the integrated reactor is a cylindrical tank body, the top of the integrated reactor is provided with a third cover plate, the bottom of the integrated reactor is designed as a cone, the integrated reactor is connected with the sedimentation regulating tank through a third water pipe, and the third water pipe extends to a position 5-8cm away from the bottom surface in the anaerobic tank; the integrated reactor is respectively provided with an anaerobic tank, an anoxic tank and a contact oxidation tank from inside to outside, the anaerobic tank is of a cylindrical tank structure, the anoxic tank and the contact oxidation tank are of annular tank structures, the anaerobic tank is communicated with the anoxic tank through a first water passing weir at the top of the anaerobic tank, the anoxic tank is communicated with the contact oxidation tank through a second water passing weir arranged at the bottom of the anoxic tank, the water flow direction in the anaerobic tank is of an up-flow type, the water flow direction in the anoxic tank is of a down-flow type, and the water flow direction in the contact oxidation tank is of an up-flow type; the wall of the anoxic tank is fixed on the outer wall of the contact oxidation tank through a support rod, 3-4 support rods are uniformly distributed along the periphery of the wall of the anoxic tank, the bottom of the anoxic tank is communicated with the contact oxidation tank, the upper part of the anoxic tank is sealed, water baffles are arranged along the periphery of the bottom of the wall of the anoxic tank, and the water baffles are obliquely arranged and form an angle of 140-150 degrees with the wall of the anoxic tank;
the three-dimensional spiral biological rope curtain type filler is hung in the contact oxidation pond, the three-dimensional spiral biological rope curtain type filler is hung on a third cover plate through a fixing ring, a microporous nano aeration pipe is arranged at the bottom of the contact oxidation pond, the microporous nano aeration pipe is arranged along the bottom of the contact oxidation pond in a direction parallel to the circumferential line, and is fixed on the side wall of the contact oxidation pond through a pipe clamp, and is connected with an external aeration pump through the aeration pipe for oxygenation and aeration;
the top position outside the contact oxidation pond wall sets up nitrifies the liquid back flow, nitrify liquid back flow and connect biological contact oxidation pond and anaerobism pond, contact oxidation pond keeps away from sediment equalizing basin one side lateral wall upper portion and is equipped with the third delivery port.
The sewage source of the treatment system adopting the embodiment is domestic sewage of a certain villa, the villa lives 6 people regularly, and the design treatment scale is 0.5m 3 And d, collecting the domestic sewage to a high-level septic tank through a sewer pipe, and discharging the domestic sewage after the domestic sewage is treated by a sedimentation regulating tank and an integrated reactor (anaerobic-anoxic-contact oxidation) in sequence. The quality of inlet water and the quality of outlet water of the treatment system of the embodiment are shown in the table 1 and the table 2 respectively.
Table 1 design water intake index
Table 2 designed water index
High-order septic tank, sedimentation equalizing basin, integrated reactor bury formula setting from a left side to the right side in proper order series connection, high-order septic tank upper surface level height and sedimentation equalizing basin upper surface level difference in height 50cm, sedimentation equalizing basin upper surface level height and integrated reactor upper surface level difference in height 50cm.
High-order septic tank: the design specification of the high-level septic tank is a square tank body structure, the length (along the x-axis direction) is multiplied by the width (along the y-axis direction) is multiplied by the height (along the z-axis direction) =0.8 multiplied by 0.8, the tank body is made of PE (polyethylene), the thickness of the tank body is 10mm, the inner surface and the outer surface of the tank body are coated with anticorrosive paint, the top surface of the tank body is an openable cover plate, and the cover plate and the tank body are fixedly connected through 2 hardware hinges. The approach is heavyA first water outlet is formed in the lower portion of the side wall of one side of the sedimentation regulating tank, the height of the first water outlet from the bottom surface of the tank is 5cm, and a first water pipe is arranged at the position of the first water outlet. The diameter of the first water pipe is the same as that of the first water outlet
The first water pipe is made of high-density polyethylene. The height of the lower surface of the high-level septic tank from the ground surface is 0.8m, and the horizontal height of the upper surface is consistent with that of the bottom surface.
A sedimentation regulating tank: the design specification of the sedimentation regulating tank is a cuboid tank body structure, the length (along the x-axis direction) multiplied by the width (along the y-axis direction) multiplied by the height (along the z-axis direction) =0.8 multiplied by 1.0m, the tank body is made of PE material, the thickness of the tank body is 10mm, the inner surface and the outer surface of the tank body are coated with anticorrosive paint, the top surface of the tank body is an openable cover plate, and the cover plate and the tank body are fixedly connected through 2 hardware hinges. The lower part of the side wall of the sedimentation regulating tank close to one side of the high-level septic tank is provided with a water inlet, the water inlet is positioned at a height of 5cm from the bottom surface, the upper part of the side wall of the sedimentation regulating tank close to one side of the integrated reactor is provided with a second water outlet, the second water outlet is positioned at a height of 5cm from the top surface, the second water outlet is connected with the integrated reactor through a third water pipe, and the diameters of the second water outlet and the third water pipe are equal
The third water pipe is made of high-density polyethylene. A first sewage baffling baffle and a second sewage baffling baffle are respectively distributed at the position, 10cm away from the upper part, of the water inlet on the side wall of one side of the high-level septic tank, of the sedimentation regulating tank from bottom to top; the opposite side walls of the first sewage baffling baffle and the second sewage baffling baffle are respectively provided with a third sewage baffling baffle and a fourth sewage baffling baffle in a staggered manner from bottom to top, the first sewage baffling baffle, the second sewage baffling baffle, the third sewage baffling baffle and the fourth sewage baffling baffle are not equidistant from each other along the vertical direction (the z-axis direction), and the distance between every two adjacent baffling baffles is 30cm; the included angles of the first sewage baffling baffle, the second sewage baffling baffle, the third sewage baffling baffle and the fourth sewage baffling baffle and the side wall of the sedimentation regulating tank are all 60 degrees, and the first sewage baffling baffle, the second sewage baffling baffle, the third sewage baffling baffle and the fourth sewage baffling baffleThe specifications of the baffle plates are length (along the x-axis direction) × width (along the y-axis direction) =0.5 × 0.8m, the baffle plates are made of PE materials, and the thickness of the baffle plates is 0.8mm. The height of the upper surface of the sedimentation regulating tank from the ground surface is 55cm.
An integrated reactor: the integrated reactor is made of PE, the thickness of the tank body is 15mm, and the connecting water pipes are made of pvc. The height of the upper surface of the integrated reactor from the ground is 120cm. Integration reactor upper portion is the cylinder cell body, and the top is equipped with the apron, and the bottom is the cone design, and the cell body total depth is 1.8m, and cylinder part diameter is 1.2m, from interior to exterior is anaerobism pond, oxygen deficiency pond, contact oxidation pond respectively, and the volume ratio is 1.5. The integrated reactor is connected with the sedimentation regulating tank through a water pipe, and the water pipe extends to the position 5cm away from the bottom surface in the anaerobic tank of the integrated reactor. The anaerobic tank and the anoxic tank are communicated through a first water-passing weir (a gap is reserved between the top of the first separating barrel and a third cover plate and is used for communicating the anaerobic tank and the anoxic tank) at the top of the first separating barrel between the anaerobic tank and the anoxic tank, or the plane of the end face of the upper opening end of the first separating barrel is lower than the plane of the end face of the upper opening end of the cylindrical tank body of the integrated reactor, and the lower opening end of the first separating barrel is hermetically connected with the bottom of the integrated reactor; the anoxic tank and the contact oxidation tank are communicated through a second water passing weir arranged at the bottom of a second separating cylinder between the anoxic tank and the contact oxidation tank or a gap is reserved between the lower opening end of the second separating cylinder and the tank bottom of the integrated reactor; the upper opening end of the second separating cylinder is hermetically connected with a third cover plate of the integrated reactor; the water flow direction in the anaerobic tank is an up-flow type, the water flow direction in the anoxic tank is a down-flow type, and the water flow direction in the contact oxidation tank is an up-flow type; the oxygen deficiency pond wall of the pool is fixed in the contact oxidation pond inner wall through the bracing piece, and 6 are evenly laid all around along the contact oxidation pond wall to the bracing piece, and oxygen deficiency pond wall of the pool bottom is along setting up the breakwater all around, and the breakwater slope sets up, 150 with oxygen deficiency pond wall contained angle. Fixing rings are uniformly and equidistantly arranged above the third cover plate contact oxidation pond along the circumference, B-type three-dimensional spiral biological rope curtain type packing produced by Japan emperor company is hung on the fixing rings, the width of a single end (y-axis direction) is 1250mm, and the length of the single end (x-axis direction) is 600mm. Purchase purchase of Baichuan aeration equipment Co Ltd in Jiangyun city at the bottom of contact oxidation tankThe inner diameter of the microporous nano aeration pipe is 10mm, and the outer diameter of the microporous nano aeration pipe is 16mm;3 annular micropore nanometer aeration pipe of circle in the coplanar of contact oxidation pond bottom, with the coaxial laying of contact oxidation pond, be fixed in contact oxidation pond inside wall through 8 pipe clamps on the wall, the micropore nanometer aeration pipe passes through the aeration pipe and is connected with the aeration pump of arranging ground in, the aeration pump is for purchasing the micropore oxygen-increasing machine in full wind environmental protection science and technology limited company, maximum flow 3m oxygen-increasing machine 3 And/min. The aeration pipe is provided with a gas flowmeter near one end of the aeration pump, the gas flowmeter is purchased from Xiamen Jingchuan automation technology limited company, the working pressure is 1.6Mpa, the drift diameter is 300mm, and the measuring range is 0-9898m 3 H is used as the reference value. And a nitrifying liquid return pipe is arranged at the top end of the outer wall of the contact oxidation tank and is connected with the contact oxidation tank and the anaerobic tank, the liquid in the nitrifying liquid return pipe flows into the anaerobic tank from the contact oxidation tank in a flowing mode, and the reflux ratio of nitrifying liquid is 300%. The third valve is arranged outside one end of the nitrifying liquid return pipe connected with the contact oxidation tank, the upper part of the side wall of the contact oxidation tank far away from the sedimentation regulating tank is provided with a water outlet, and the water outlet is externally connected with a water outlet pipe.
The treatment effect (mg/L) of the system in this example is shown in Table 3. Table 3 shows that COD in sewage after treatment by multi-stage integrated equipment for rural domestic sewage treatment in the embodiment Cr 、BOD 5 、SS、TP、TN、NH 3 The removal effect of N is that the effluent reaches the first grade A standard of pollutant discharge Standard of municipal wastewater treatment plant (GB 18918-2002), and is superior to the Water pollution discharge Standard of rural domestic Sewage treatment facility in Liaoning province (DB 21/3176-2019).
TABLE 3 quality of effluent water after treatment by multi-stage integrated equipment for rural domestic sewage treatment
As can be seen from the table, the treatment device and the method of the invention well remove pollutants in the sewage and ensure the treatment effect.
The above description is only a 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 are also within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An integrated device for treating domestic sewage comprises a high-level septic tank (1), a sedimentation regulating tank (9) and an integrated reactor (31);
the high-level septic tank (1), the sedimentation regulating tank (9) and the integrated reactor (31) are sequentially connected in series from left to right, the height difference between the horizontal line of the upper surface of the high-level septic tank (1) and the upper surface (or the upper opening end face) of the sedimentation regulating tank (9) is 50-55cm (the high-level septic tank is higher than the sedimentation regulating tank and the integrated reactor), the height difference between the upper surface (or the upper opening end face) of the sedimentation regulating tank (9) and the upper surface (or the upper opening end face) of the integrated reactor (31) is 50-55cm (the sedimentation regulating tank is higher than the integrated reactor), and sewage can be ensured to freely flow to the next facility only under the action of gravity; a first cover plate (30) is arranged on the upper surface of the high-level septic tank (1);
the horizontal direction of the high-level septic tank (1), the sedimentation regulating tank (9) and the integrated reactor (31) which are sequentially connected in series from left to right is the direction of an x axis, the longitudinal direction vertical to the x axis in a plane is the direction of a y axis, and the vertical direction vertical to the plane of the x axis and the y axis in a space is the direction of a z axis;
a first water outlet (2) is formed in the lower portion or the bottom of the side wall of one side, close to the sedimentation regulating tank (9), of the high-position septic tank (1), a water inlet (7) is formed in the lower portion or the bottom of the side wall of one side, close to the high-position septic tank (1), of the sedimentation regulating tank (9), the first water outlet (2) of the high-position septic tank (1) is connected with the water inlet (7) of the sedimentation regulating tank (9) through a first water pipe (5), and a first valve (6) is arranged on the first water pipe (5) to enable the high-position septic tank (1) to be connected with the sedimentation regulating tank (9) through the first water pipe (5);
a second water outlet (11) is formed in the upper part of the side wall of the sedimentation regulating tank (9) close to one side of the integrated reactor (31), and the second water outlet (11) is externally connected with a second water pipe (12); more than 2 sewage baffling baffles (10) are arranged on the side wall of the sedimentation regulating tank (9) close to the side wall of the high-level septic tank (1) and on the side wall of the sedimentation regulating tank far away from the side wall of the high-level septic tank (1) in a relatively staggered manner;
the integrated reactor (31) has an internal cavity which is a cylindrical tank body, the top of the internal cavity is provided with a third cover plate (13), and the bottom of the internal cavity is a cone or cone frustum-shaped tank bottom;
two separation cylinders which are coaxial with the cylindrical tank body and have openings at the upper end and the lower end are arranged in the integrated reactor, the integrated reactor is sequentially separated into an anaerobic tank (20), an anoxic tank (19) and a contact oxidation tank (18) from inside to outside, and the anaerobic tank (20) is of a cylindrical tank body structure;
the anaerobic tank (20) and the anoxic tank (19) are communicated with each other through a first water-passing weir (a gap is reserved between the top of the first separating cylinder and a third cover plate) at the top of the first separating cylinder between the anaerobic tank (20) and the anoxic tank (19) and are used for communicating the anaerobic tank with the anoxic tank (32) or the plane of the end surface of the upper opening end of the first separating cylinder is lower than the plane of the end surface of the upper opening end of the cylindrical tank body of the integrated reactor, and the lower opening end of the first separating cylinder is hermetically connected with the bottom of the integrated reactor;
the anoxic tank (19) is communicated with the contact oxidation tank (18) through a second water-passing weir (33) arranged at the bottom of a second partition barrel between the anoxic tank (19) and the contact oxidation tank (18) or a gap is reserved between the lower opening end of the second partition barrel and the bottom of the integrated reactor; the upper opening end of the second separating cylinder is hermetically connected with a third cover plate (13) of the integrated reactor;
the integrated reactor (31) is connected with the sedimentation regulating tank (9) through a second water pipe (12), the second water pipe (12) is connected with the anaerobic tank (20) through a second valve (3) and a third water pipe (4), and the outlet end of the third water pipe (4) is positioned in the anaerobic tank (20) and extends into the lower part of the anaerobic tank (20) and is 5-8cm away from the bottom of the tank; three-dimensional spiral biological rope curtain type packing (27) is suspended in the contact oxidation pond (18); the bottom of the contact oxidation tank (18) is provided with a microporous nano aeration pipe (29), and the aeration pipe (16) is used for carrying out oxygenation aeration through an aeration pump (17) communicated with the aeration pipe and externally arranged outside the integrated reactor; the aeration pump (17) is connected with the microporous nano aeration pipe (29) through an aeration pipe (16), and one end of the aeration pipe (16) close to the outlet of the aeration pump (17) is provided with a gas flowmeter (15); be equipped with in integration reactor cell body outside and nitrify liquid back flow (25), nitrify the one end of liquid back flow (25) with contact oxidation pond (18) upper end intercommunication position sets up, and the other end is linked together with anaerobism pond (20) bottom, nitrify liquid back flow (25) and connect contact oxidation pond (18) and anaerobism pond (20), contact oxidation pond (18) are kept away from sediment equalizing basin (9) one side lateral wall upper portion and are equipped with third delivery port (21).
2. The apparatus of claim 1, wherein:
the end surface of the upper opening end of the second partition cylinder and the end surface of the upper opening end of the cylindrical tank body of the integrated reactor are positioned on the same plane;
the outlet end of the third water pipe (4) is positioned in the anaerobic tank (20) and is 5-8cm away from the bottom of the integrated reactor, and the volume ratio of the anaerobic tank (20) to the anoxic tank (19) to the contact oxidation tank (18) is 1.5-2.8;
the high-level septic tank (1), the sedimentation regulating tank (9) and the integrated reactor (31) are sequentially connected in series from left to right, the height difference between the horizontal plane of the end surface of the top opening end of the high-level septic tank (1) and the horizontal plane of the end surface of the top opening end of the sedimentation regulating tank (9) is 15-25 cm, and the height difference between the horizontal plane of the end surface of the top opening end of the sedimentation regulating tank and the horizontal plane of the end surface of the top opening end of the integrated reactor (31) is 15-25 cm;
the high-level septic tank (1) is of a cuboid tank body structure with an opening at the upper end, a first water outlet (2) is formed in the lower part of the side wall of one side close to the sedimentation regulating tank (9), the high-level septic tank (1) is connected with the sedimentation regulating tank (9) through a first water pipe (5), and a first valve (6) is arranged at one end, close to the sedimentation regulating tank (9), of the first water pipe (5);
the sedimentation regulating tank (9) is of a cuboid tank body structure with an open upper end, a water inlet (7) is formed in the lower portion of one side wall close to the high-level septic tank (1), the outer portion of the water inlet (7) is connected through a first water pipe (5), a second water outlet (11) is formed in the upper portion of one side wall close to the integrated reactor (31) of the sedimentation regulating tank (9), and the outer portion of the second water outlet (11) is connected with a second water pipe (12); the device is characterized in that 2 or more than 3 rectangular sewage baffle plates (10) are respectively arranged above a side wall water inlet (7) close to one side of the high-level septic tank (1) and below a second water outlet (11) close to the opposite side wall of one side of the integrated reactor in the sedimentation regulating tank (9), the sewage baffle plates (10) close to the high-level septic tank and the opposite side walls close to the integrated reactor are sequentially staggered and staggered, one end of each sewage baffle plate (10) is hermetically connected with the side wall of the sedimentation regulating tank close to the high-level septic tank or the integrated reactor, and the other end of each sewage baffle plate is hermetically connected with the side wall of the sedimentation regulating tank close to the integrated reactor or the high-level septic tank, and is also hermetically connected with two side walls of the sedimentation regulating tank except two opposite side walls close to the high-level septic tank and the integrated reactor; the horizontal plane position of one end of the sewage baffling baffle (10) and the inner side wall surface of the tank, which is provided with a gap, is higher than the horizontal plane position of the opposite end of the sewage baffling baffle, the included angle between the sewage baffling baffle (10) and the side wall of the sedimentation regulating tank (9) is 55-60 degrees, and the top of the sedimentation regulating tank (9) is provided with a second cover plate (8);
the integrated reactor (31) is a cylindrical tank body, the top of the integrated reactor is provided with a third cover plate (13), the bottom of the integrated reactor is a conical or truncated cone-shaped cavity, and the integrated reactor (31) is connected with the sedimentation regulating tank (9) through a third water pipe (12);
the integrated reactor (31) is respectively an anaerobic tank (20), an anoxic tank (19) and a contact oxidation tank (18) from inside to outside, the anaerobic tank (20) is of a cylindrical tank body structure, the anoxic tank (19) and the contact oxidation tank (18) are of circular tank body structures, the anaerobic tank (20) is communicated with the anoxic tank (19) through a first water-passing weir (32) arranged at the top of a first separating cylinder or the plane of the end surface of the upper opening end of the first separating cylinder is lower than the plane of the end surface of the upper opening end of the cylindrical tank body of the integrated reactor, the anoxic tank (19) is communicated with the contact oxidation tank (18) through a second water-passing weir (33) arranged at the bottom of a second separating cylinder or a gap is reserved between the lower opening end of the second separating cylinder and the bottom of the integrated reactor, the water flow direction in the anaerobic tank (20) is of an up-flow type, the water flow direction in the anoxic tank (19) is of a down-flow type, and the water flow direction in the contact oxidation tank (18) is of an up-flow type; the outer tank wall of the anoxic tank (19) is fixed on the inner wall of the contact oxidation tank (18) through a support rod (26), namely, second separating cylinders are fixed on the inner wall of the integrated reactor tank body through the support rod, one end of the support rod is fixedly connected with the outer wall of the second separating cylinders, the other end of the support rod is fixedly connected with the inner wall of the integrated reactor tank body, 3-10 support rods (26) are uniformly distributed along the periphery of the outer tank wall (the outer wall of the second separating cylinders) of the anoxic tank (19), the bottom of the anoxic tank (19) is communicated with the contact oxidation tank (18), namely, a gap is reserved between the end face of the lower opening end of the second separating cylinders and the bottom of the integrated reactor, an annular water baffle (23) is arranged on the end face of the lower opening end of the second separating cylinders, the water baffle (23) is in a hollow cone shape with openings at the upper and lower ends of the second separating cylinders, the upper opening end of the water baffle is coaxially and fixedly connected with the lower opening end of the second separating cylinders, and the side wall face of the anoxic tank (19) forms an included angle of 140-150 degrees with the tank bottom wall, and a gap is reserved between the side wall of the anoxic tank (19);
hang three-dimensional spiral biological rope curtain formula filler (27) in contact oxidation pond (18), three-dimensional spiral biological rope curtain formula filler (27) hang on third apron (13) through solid fixed ring (14), contact oxidation pond (18) bottom sets up micropore nanometer aeration pipe (29), and annular micropore nanometer aeration pipe (29) of more than 2 are in the coplanar of contact oxidation pond (18) bottom, lay with the contact oxidation pond is coaxial, are fixed in on contact oxidation pond (18) inside wall through pipe clamp (28), are connected with the gas outlet of external aeration pump (17) through micropore nanometer aeration pipe (16) and oxygenate the aeration.
3. The apparatus of claim 1 or 2, wherein:
the sedimentation regulating tank (9) is of a cuboid tank body structure, and is long (in the x-axis direction): width (y-axis direction): height (z-axis direction) =1:1 to 1.5: 2-2.5, a second cover plate (8) is arranged at the top of the sedimentation regulating tank (9), and the tank body and the second cover plate (8) of the sedimentation regulating tank (9) are both made of PE materials;
a water inlet (7) is formed in the lower portion of the side wall of the sedimentation regulating tank (9) close to the high-level septic tank (1), and the distance between the water inlet (7) and the inner bottom surface of the sedimentation regulating tank (9) is 4-7 cm;
the projection parts of the sewage baffling baffles (10) on the side wall of one side of the sedimentation regulating tank (9) close to the high-level septic tank (1) on the horizontal plane are overlapped; the projection parts of the sewage baffling baffle plates (10) on the side wall of one side of the sedimentation regulating tank (9) close to the integrated reactor (31) on the horizontal plane are overlapped.
4. The apparatus of claim 3, wherein: the width (y-axis direction) of the sewage baffling baffle (10) is the same as the width (y-axis direction) of the sedimentation regulating tank (9), and the length (x-axis direction) of the sewage baffling baffle (10) is 2/3-3/4 of the length (x-axis direction) of the sedimentation regulating tank (9);
when the sewage baffling baffle (10) is arranged more than 2, the sewage baffling baffle (10) at the lowest end is 10-20 cm away from the bottom surface of the sedimentation regulating tank (9), and the sewage baffling baffle (10) at the uppermost end is 6-8 cm away from the second water outlet (11) of the sedimentation regulating tank (9).
5. The apparatus of claim 1, wherein: the integrated reactor (31) is connected with the sedimentation regulating tank (9) through a third water pipe (12), and the third water pipe (12) extends to the position, which is 5-8cm away from the bottom surface, in the anaerobic tank (20) of the integrated reactor (31);
the integrated reactor (31) is a cylindrical tank body, the top of the integrated reactor is provided with a third cover plate (13), the bottom of the integrated reactor is designed to be a cone, and the third cover plate (13) is uniformly and equidistantly provided with fixing rings (14) above the contact oxidation tank (18) along the circumference.
6. The apparatus of claim 1 or 2, wherein: the integrated reactor (31) is respectively an anaerobic tank (20), an anoxic tank (19) and a contact oxidation tank (18) from inside to outside, the anaerobic tank (20) is of a cylindrical tank body structure, the anoxic tank (19) and the contact oxidation tank (18) are all of circular ring-shaped tank body structures, and the volume ratio of the anaerobic tank (20), the anoxic tank (19) and the contact oxidation tank (18) is V Anaerobic tank :V Anoxic pond :V Contact oxidation pond ＝1:2.5～2.8:5～5.5。
7. The apparatus of claim 2, wherein: the water flow direction in the anaerobic tank (20) is an up-flow type, the water flow direction in the anoxic tank (19) is a down-flow type, and the water flow direction in the contact oxidation tank (18) is an up-flow type; the wall of the anoxic tank (19) is fixed on the inner side wall of the contact oxidation tank (18) through a support rod (26), 4-8 support rods are uniformly distributed on the periphery of the wall of the contact oxidation tank (18), a water baffle (23) is arranged on the periphery of the bottom of the wall of the anoxic tank (19), and the water baffle (23) is obliquely arranged and forms an included angle of 140-150 degrees with the wall of the anoxic tank (19).
8. The apparatus of claim 2, wherein: a three-dimensional spiral biological rope curtain type filling material (27) is hung in the contact oxidation pond (18), the three-dimensional spiral biological rope curtain type filling material (27) is hung on a third cover plate (13) through a fixing ring (14), the three-dimensional spiral biological rope curtain type filling material (27) is purchased from a type B of a type of a Japan emperor group, and has a single-end width (y-axis direction) 1950mm and a single-end length (x-axis direction) 600mm; the microporous nano aeration pipe (29) is purchased from Baichuan aeration equipment Limited of Jiangyin city, and has the inner diameter of 10mm and the outer diameter of 16mm.
9. The device according to claim 2, characterized in that a nitrifying liquid return pipe (25) is arranged at the top position outside the wall of the contact oxidation tank (18), the nitrifying liquid return pipe (25) is connected with the contact oxidation tank (18) and the anaerobic tank (20), a third valve (24) is arranged outside one end connected with the contact oxidation tank, the liquid in the nitrifying liquid return pipe flows from the contact oxidation tank to the anaerobic tank, a third water outlet (21) is arranged on the upper portion of the side wall of the contact oxidation tank (18) far away from the sedimentation regulating tank (9), and a water outlet pipe (22) is externally connected with the third water outlet (21).
10. The apparatus of claim 2, wherein: the device can be used for rural distributed domestic sewage treatment and is an integrated device integrating AO and a contact oxidation process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211376504.4A CN115536156A (en) | 2022-11-04 | 2022-11-04 | Domestic sewage treatment integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211376504.4A CN115536156A (en) | 2022-11-04 | 2022-11-04 | Domestic sewage treatment integrated device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115536156A true CN115536156A (en) | 2022-12-30 |
Family
ID=84719849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211376504.4A Pending CN115536156A (en) | 2022-11-04 | 2022-11-04 | Domestic sewage treatment integrated device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115536156A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116535005A (en) * | 2023-06-29 | 2023-08-04 | 成都理工大学 | Intelligent synchronous nitrification and denitrification treatment system and method for domestic sewage |
| CN118687155A (en) * | 2024-08-21 | 2024-09-24 | 常州瑞玛环保科技有限公司 | Heat accumulating incinerator |
-
2022
- 2022-11-04 CN CN202211376504.4A patent/CN115536156A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116535005A (en) * | 2023-06-29 | 2023-08-04 | 成都理工大学 | Intelligent synchronous nitrification and denitrification treatment system and method for domestic sewage |
| CN116535005B (en) * | 2023-06-29 | 2023-09-01 | 成都理工大学 | Intelligent synchronous nitrification and denitrification treatment system and method for domestic sewage |
| CN118687155A (en) * | 2024-08-21 | 2024-09-24 | 常州瑞玛环保科技有限公司 | Heat accumulating incinerator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2021036458A1 (en) | Efficient self-circulation biological denitrification device and working method therefor | |
| CN115536156A (en) | Domestic sewage treatment integrated device | |
| CN104926038B (en) | A kind of biological and ecological composite handling arrangement for rural sewage treatment | |
| CN104030441A (en) | Horizontal type three-phase biological fluidized bed and sewage treatment method thereof | |
| CN104512963A (en) | Integral multistage simultaneous nitrification and denitrification biological membrane system denitrification method and device | |
| CN108298686A (en) | A kind of purifying processing device for high COD concentration domestic sewage in rural areas | |
| CN102964037A (en) | Novel sewage treatment method by combined utilization of light filter material biological aerated filter and heavy filter material biological aerated filter | |
| CN211338961U (en) | Sewage treatment device adopting down-flow type anaerobic biological filter combined process | |
| CN105152487B (en) | Waters sewage-treatment plant and method | |
| CN106966545A (en) | Integrated sewage disposal liquid-solid separation equipment | |
| CN212375119U (en) | Sewage treatment system in multi-functional district | |
| CN108996827B (en) | Sewage plant tail water deep denitrification device based on methane oxidation | |
| CN207405026U (en) | Sewage treating and recovering device | |
| CN203938524U (en) | A kind of horizontal is three-phase biologic fluidized-bed | |
| CN112209504B (en) | Spiral-flow type bioreactor | |
| CN205933527U (en) | Denitrogenation of sewage degree of depth is with integration equipment | |
| CN201313853Y (en) | Biofilm reaction equipment for wastewater treatment | |
| CN210505759U (en) | Self-circulation efficient biological denitrification device | |
| CN210261291U (en) | Split type sewage treatment tank | |
| CN209906446U (en) | Integrated sewage advanced treatment device based on circular tank body | |
| CN109264940B (en) | Multi-stage stabilization pond sewage treatment method and system | |
| CN219567704U (en) | Domestic sewage treatment integrated device | |
| CN114656104B (en) | Energy-saving self-circulation A3O-MBBR sewage treatment device and method thereof | |
| CN109292980A (en) | A kind of adjustable multistage AO-MBBR process spent water processing unit of series and method | |
| CN211056898U (en) | MFBR sewage treatment plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |