CN210176686U - Integrated sewage and wastewater treatment tank - Google Patents
Integrated sewage and wastewater treatment tank Download PDFInfo
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- CN210176686U CN210176686U CN201920907344.9U CN201920907344U CN210176686U CN 210176686 U CN210176686 U CN 210176686U CN 201920907344 U CN201920907344 U CN 201920907344U CN 210176686 U CN210176686 U CN 210176686U
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Abstract
The utility model relates to an integration sewage and wastewater treatment jar, include: a tank, a stirrer and an air pump; the interior of the tank body is divided into six layers, and the tank body sequentially comprises a water inlet adjusting area, an anaerobic area, an aerobic first area, an anoxic area, an aerobic second area and a secondary sedimentation area from top to bottom; wherein: an anoxic and aerobic two-component AO denitrification process; an anaerobic, aerobic, anoxic and aerobic two-component AOAO process; the utility model discloses for traditional sewage treatment process equipment, under guaranteeing that play water quality of water is up to standard principle, have load-resisting impact nature, unmanned on duty nature, maintain simplicity, go out water stability, integrated level height, the few advantage of capital construction expense.
Description
Technical Field
The utility model belongs to sewage treatment device field, in particular to dirty waste water treatment jar of integration.
Background
The development and improvement of the living standard of industrialization, modern agriculture and everyone, creates huge material wealth and brings serious pollution to the water environment; with the progress of sewage treatment technology, sewage treatment is gradually oriented to industries and villages and towns with small sewage quantity while solving the problem of large water environment pollution.
In order to ensure that the environment is well protected while the economy is developed, in many industries such as hotels and ecological villages, the amount of sewage and wastewater generated daily is very small, and if the sewage and wastewater is directly discharged without treatment, the serious pollution of the received water body (the water in the pond is black and smelly, and the like) can be caused; the sewage treatment in villages and towns is mature day by day, but residents in unplanned natural villages are scattered, and the local situation is severe in some places, so that the residents cannot directly take over and store sewage to a sewage treatment station for treatment, and therefore point source sewage treatment facilities need to be built on site.
In view of the above mentioned treatment directions, the sewage and wastewater with small water volume relates to the fluctuation conditions of personnel and production relative to the urban sewage, and the pollution concentration of the sewage and wastewater is high and low (the BOD of the inlet water is low, the ammonia nitrogen, the total nitrogen and the total phosphorus are high) and the fluctuation coefficient of the sewage and wastewater is large.
In order to make the sewage and wastewater treatment stably reach the standard and discharge and be unattended, and meet the national policy requirements for water pollution control, in recent years, some domestic environmental protection enterprises develop processes suitable for small-volume sewage and wastewater treatment on the basis of the original processes, such as: chinese pot, Smart-sdt, A2O-MBBR, etc., process pairs for each such as the following:
aiming at the prior advanced process which is suitable for treating the sewage with small water amount at present in China, the main problems are as follows: because the carbon-nitrogen ratio and the carbon-phosphorus ratio of the sewage and the wastewater are low, the fluctuation of the incoming water is large, from the biochemical aspect, some biological phosphorus removal systems are not designed, the total phosphorus is required to reach the first-level B standard, and the standard reaching is difficult under the condition of no medicine addition; from the fluid dynamics angle, the operation cost is reduced, and because the water yield is little, no mixing system, the cell body has more or less dead angle to cause the accumulation of mud or filler, directly influence the play water quality.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in filling the not enough of prior art, provides an integration sewage and wastewater treatment jar, adapts to small-size sewage treatment characteristics, can realize stabilizing discharge to reach standard.
Therefore, the utility model discloses specific scheme is as follows:
dirty waste water treatment jar of integration includes: a tank, a stirrer and an air pump;
the interior of the tank body is divided into six layers, and the tank body sequentially comprises a water inlet adjusting area, an anaerobic area, an aerobic first area, an anoxic area, an aerobic second area and a secondary sedimentation area from top to bottom;
a first exhaust pipe is fixed on the upper part of the tank wall of the water inlet adjusting area, a first water passing pipe communicated with the anaerobic area is vertically fixed in the center of the water inlet adjusting area, a flow dividing pipe communicated with the anoxic area is vertically fixed in the water inlet adjusting area, a lifting rubber plug is installed at a pipe orifice at the upper end of the flow dividing pipe, a basket grid is fixed in the water inlet adjusting area, and a water inlet communicated with the basket grid is arranged at the top of the tank body;
a second exhaust pipe is fixed on the upper part of the tank wall of the anaerobic zone, a first water collecting tank is arranged in the center of the anaerobic zone, the lower end of the first water passing pipe extends into the first water collecting tank, and the lower part of the first water collecting tank is connected with at least one first water distribution pipe; a water pipe II communicated with the aerobic zone I is vertically fixed in the anaerobic zone; the anaerobic zone is filled with filler, and the tank wall of the anaerobic zone is provided with a sludge discharge port;
a third exhaust pipe is fixed on the upper part of the tank wall of the first aerobic zone, a third water passing pipe communicated with the anoxic zone is vertically fixed in the center of the first aerobic zone, the first aerobic zone is filled with filler, and a first aeration device is arranged at the bottom of the first aerobic zone;
a fourth exhaust pipe is fixed on the upper part of the tank wall of the anoxic zone, a second water collecting tank is arranged in the center of the anoxic zone, the lower end of the third water passing pipe extends into the second water collecting tank, and the lower part of the second water collecting tank is connected with at least one second water distribution pipe; a water pipe IV communicated with the aerobic zone II is vertically fixed in the anoxic zone; a degasser is fixed in the anoxic zone, the degasser is communicated with the anoxic zone through a water outlet pipe, and the degasser is communicated with the aerobic zone through a nitrifying liquid return pipe; the anoxic zone is filled with filler;
a fifth exhaust pipe is fixed on the upper part of the tank wall of the second aerobic zone, a fifth water pipe communicated with the second sedimentation zone is vertically fixed in the center of the second aerobic zone, a second aeration device is arranged at the bottom of the second aerobic zone, and a filler is filled in the second aerobic zone;
the upper part of the tank wall of the secondary sedimentation zone is fixedly provided with a sixth exhaust pipe, the tank wall of the secondary sedimentation zone is provided with a water outlet, at least one circle of water passing weir is arranged from the center to the tank wall in the secondary sedimentation zone, and the bottom of the secondary sedimentation zone is provided with a perforated mud pipe; the perforated sludge discharge pipe is connected with a sludge return pipe which is respectively communicated with the inside of the anaerobic zone and the sludge discharge port;
the stirrer is fixed in the center of the top of the tank body, and a stirring shaft of the stirrer vertically and downwards sequentially penetrates through the water passing pipe I, the water collecting tank I, the water passing pipe III and the water collecting tank II; the part of the stirring shaft positioned in the water inlet adjusting area is connected with a stirring blade, and the stirring shaft is fixedly connected with the water collecting tank I and the water collecting tank II respectively;
the air pump is respectively connected with the first aeration device, the second aeration device, the sludge return pipe and the nitrified liquid return pipe through pipelines.
Preferably, the tank body is a cylinder.
Preferably, the lifting rubber plug comprises a rubber plug, a screw rod and a nut; the nut is fixed on the top of the tank body, and the lead screw is in threaded connection with the nut; the rubber buffer is the back taper platform shape, the one end of lead screw and the big terminal surface center fixed connection of rubber buffer, the other end of lead screw stretches out jar body and is fixed with the hand wheel.
Preferably, the first aeration device and the second aeration device are both annular aeration hoses; the aeration hose is made of high polymer polyurethane.
Preferably, the fillers in the anaerobic zone, the aerobic zone I, the anoxic zone and the aerobic zone II are all polyurethane fillers.
Preferably, stainless steel mesh nets for preventing the filler from losing are fixed at the upper pipe orifices of the water passing pipe II, the water passing pipe IV and the water passing pipe V through hoops.
Preferably, the first exhaust pipe, the second exhaust pipe, the third exhaust pipe, the fourth exhaust pipe, the fifth exhaust pipe and the sixth exhaust pipe are connected with a main exhaust pipe.
Preferably, the automatic control system further comprises an electric automatic control cabinet positioned outside the tank body and used for monitoring equipment, and the air pump is integrated in the electric automatic control cabinet.
The beneficial effects of the utility model reside in that:
the utility model has the treatment capacity of 0.5-1m3The small-sized sewage treatment integrated equipment is suitable for treating sewage and wastewater produced in single households or less than 5 households in the countryside, ecological villages and the like in days; the process composition of the equipment is as follows: adjusting by a water inlet grating, anaerobic treatment, aerobic treatment, anoxic treatment, aerobic treatment and secondary sedimentation. Wherein: an Anoxic and aerobic two-component AO denitrification process (Anoxic-Oxic); the AOAO process (Anaerobic-Oxic) is composed of Anaerobic, aerobic, Anoxic and aerobic.
The effluent index of the utility model can be controlled above the first-level B emission standard of GB18918-2002 discharge Standard of pollutants for municipal wastewater treatment plants; part of indexes (such as COD, BOD, ammonia nitrogen and the like) are controlled above the first-level A discharge standard.
The utility model discloses an integration level is high, outside the electric control system of outside confession personnel operation, adjusting zone will intake, anaerobic zone, good oxygen district, anoxic zone, good oxygen two districts and two sink each functional areas of district and integrate in same jar internally, jar body can adopt to bury formula installation, except that equipment foundation (concrete foundation, or can adopt sand as the basis, basic thickness 200mm), need not additionally to do other civil engineering structures, the appearance is pleasing to the eye, save area, the trade and the rural and town installation requirement of the fully provided little water yield.
The water distribution and stirring system is reasonably designed in the tank body, the water receiving tank and the water distribution pipe are combined to form an integral water distribution and stirring device, the water receiving tank is connected with the stirring shaft of the stirrer, the stirrer drives the water receiving tank to rotate, and further drives the water distribution pipe to rotate, distribute water and stir simultaneously, so that functional areas (anaerobic areas and anoxic areas) which are not provided with aeration are enabled to distribute water uniformly and have good flow state, muddy water is fully mixed, and the filler and sludge are effectively prevented from being completely precipitated; compared with the sewage purification device of 0.5-1T/D on the market, the device realizes complete mixing and stirring in the true sense and has low energy consumption.
Drawings
Fig. 1 is a schematic top view of the present invention;
FIG. 2 is a schematic sectional view of section 1-1 in FIG. 1;
FIG. 3 is a schematic sectional view taken along line 2-2 in FIG. 1;
FIG. 4 is a plan view of the aerobic zone;
FIG. 5 is a plan view of the secondary sedimentation zone;
FIG. 6 is a schematic view of a structure for preventing filler loss;
wherein: 1-tank body, 2-stirrer, 21-stirring shaft, 22-angle iron stirring blade, 3-air pump, 4-water inlet adjusting area, 41-first exhaust pipe, 42-first water passing pipe, 43-shunt pipe, 44-rubber plug, 45-screw rod, 46-nut, 47-hand wheel, 48-basket grid, 49-water inlet, 5-anaerobic area, 51-second exhaust pipe, 52-second water passing pipe, 53-first water collecting tank, 54-first water distributing pipe, 55-mud discharging port, 6-first aerobic area, 61-third exhaust pipe, 62-third water passing pipe, 63-first aeration device, 7-anoxic area, 71-fourth exhaust pipe, 72-fourth water passing pipe, 73-second water collecting tank, 74-water distributing pipe, 75-degasser, water inlet adjusting area, 5-first air outlet pipe, 42-third water passing pipe, 25-second aeration device, 3-second water distributing pipe, 75-degasser, 76-a water outlet pipe, 77-a nitrifying liquid return pipe, 8-an aerobic second zone, 81-a fifth exhaust pipe, 82-a fifth water passing pipe, 83-a second aeration device, 9-a secondary settling zone, 91-a sixth exhaust pipe, 92-a water outlet, 93-a perforated sludge discharge pipe, 94-a sludge return pipe, 95-a water passing weir, 10-a main exhaust pipe, 11-a hoop, 12-a stainless steel mesh net and 13-a sleeve.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments.
An integrated waste water treatment tank as shown in figures 1 to 3 comprising: a tank 1, a stirrer 2 and an air pump 3.
The tank body 1 of the present embodiment is a cylinder, and can be designed into other shapes as required, the interior of the tank body 1 is divided into six layers, from top to bottom, which are a water inlet adjusting zone 4, an anaerobic zone 5, an aerobic first zone 6, an anoxic zone 7, an aerobic second zone 8 and a secondary sedimentation zone 9.
And a first exhaust pipe 41 (positioned above the liquid level) is fixed at the upper part of the tank wall of the water inlet adjusting area 4 and is used for exhausting the waste gas generated in the area.
A water passing pipe I42 communicated with the anaerobic zone 5 is vertically fixed in the center of the water inlet adjusting zone 4, and sewage automatically flows through a pipe orifice at the upper end of the water passing pipe I42 and falls to the anaerobic zone 5 below; the shunt tubes 43 communicated with the anoxic zone 7 are vertically fixed in the water inlet adjusting zone 4, and lifting rubber stoppers are installed at the upper end tube openings of the shunt tubes 43.
The lifting rubber plug can be adjusted in a lifting mode and used for adjusting the water passing amount of the flow dividing pipe 43, and the specific implementation mode of the lifting rubber plug in the embodiment is that the lifting rubber plug comprises a rubber plug 44, a screw rod 45 and a nut 46.
The nut 46 is fixed on the top of the tank body 1, and the screw rod 45 is in threaded connection with the nut 46; the rubber stopper 44 is in the shape of an inverted frustum, the diameter of the large end face of the rubber stopper 44 can be slightly larger than the pipe diameter of the shunt pipe 43, one end of the screw rod 45 is fixedly connected with the center of the large end face of the rubber stopper 44, and the other end of the screw rod 45 extends out of the tank body 1 and is fixed with a hand wheel 47.
Can drive lead screw 45 and rubber buffer 44 rotation through rotatory hand wheel 47 like this to according to the degree of depth that rubber buffer 44 goes into shunt tubes 43, adjust by the dirty waste water flow that the adjusting zone 4 of intaking directly gets into anoxic zone 7, provide the carbon source for denitrification in the anoxic zone 7.
A basket grid 48 is fixed in the water inlet adjusting area 4, and the top of the tank body 1 is provided with a water inlet 49 communicated with the basket grid 48, namely, sewage enters the equipment from the water inlet 49 and is adjusted by the grid.
A second exhaust pipe 51 is fixed on the upper part of the tank wall of the anaerobic zone 5 and is used for exhausting waste gas generated in the zone; the center of the anaerobic zone 5 is provided with a first water receiving tank 53, the lower end of the first water passing pipe 42 extends into the first water receiving tank 53, and the lower part of the first water receiving tank 53 is connected with two first water distribution pipes 54.
The first water collecting tank 53 and the first water distribution pipe 54 are combined into a whole and play the dual roles of water distribution and stirring at the same time, so that the sewage from the water inlet adjusting area 4 is uniformly distributed, and the stirring is carried out to prevent the filler and the sludge from being completely precipitated.
A water pipe II 52 communicated with the aerobic zone 6 below is vertically fixed in the anaerobic zone 5, and sewage flows into the water pipe II 52 from an upper pipe orifice and falls down automatically; the anaerobic zone 5 is filled with polyurethane filler (omitted in the figure, and the person skilled in the art can refer to the existing filler form), and the tank wall of the anaerobic zone 5 is provided with a sludge discharge port 55 (with a solenoid valve for controlling the opening and closing).
A third exhaust pipe 61 is fixed on the upper part of the tank wall of the aerobic first zone 6 and is used for exhausting waste gas generated in the zone; a water pipe III 62 communicated with the anoxic zone 7 is vertically fixed in the center of the aerobic zone I6, sewage flows into the aerobic zone I6 from a pipe opening at the upper end of the water pipe III 62 and falls freely, polyurethane filler is also filled in the aerobic zone I6, and an aeration device I63 is arranged at the bottom of the aerobic zone I6.
Referring to fig. 4, the first aeration device 63 of the present embodiment is a circular aeration hose made of polyurethane.
The oxygen utilization rate of the selected high-molecular polyurethane aeration membrane is high, and meanwhile, when the aeration oxygenation is carried out on the aerobic first zone 6 (the aerobic second zone 8), the circular tank body 1 is circular, so that dead corners can be eliminated by aeration through matching with the circular aeration hose, the oxygen utilization rate can reach over 28 percent, and compared with a traditional disc-type aerator, the oxygen utilization rate is greatly improved, and the energy consumption is saved.
A fourth exhaust pipe 71 is fixed on the upper part of the tank wall of the anoxic zone 7, a second water collecting tank 73 is arranged in the center of the anoxic zone 7, the lower end of the third water passing pipe 62 extends into the second water collecting tank 73, and the lower part of the second water collecting tank 73 is connected with two second water distribution pipes 74; the second water collecting tank 73 and the second water distribution pipe 74 are combined into a whole and play the dual functions of water distribution and stirring.
A fourth water passing pipe 72 communicated with the second aerobic zone 8 is vertically fixed in the anoxic zone 7, and sewage flows into the upper end pipe orifice of the fourth water passing pipe 72 and falls down automatically; a degasser 75 is fixed in the anoxic zone 7, the degasser 75 is communicated with the anoxic zone 7 through a water outlet pipe 76, and the degasser 75 is communicated with the aerobic zone 8 through a nitrifying liquid return pipe 77; the anoxic zone 7 is also filled with polyurethane filler.
The degasser 75 is a commercially available product, and a person skilled in the art can select a suitable form by himself, because the embodiment adopts a gas stripping mode to lift the nitrified liquid, the nitrified liquid lifted to the anoxic zone 7 cannot be avoided to contain dissolved oxygen, and in order to ensure the content of the dissolved oxygen in the anoxic zone 7, the degasser 75 is arranged, and the nitrified liquid flowing up from the gas stripping reflux passes through a central partition plate in the degasser 75, and flows into the anoxic zone 7 automatically after gas-liquid separation.
A fifth exhaust pipe 81 is fixed on the upper part of the tank wall of the aerobic second zone 8 and used for exhausting waste gas generated in the zone; a water pipe five 82 communicated with the secondary sedimentation zone 9 is vertically fixed in the center of the aerobic secondary zone 8, an aeration device two 83 (the specific structure and the material are the same as those of the aeration device one 63) is arranged at the bottom of the aerobic secondary zone 8, and polyurethane filler is also filled in the aerobic secondary zone 8.
In this embodiment, polyurethane filler is filled in the anaerobic zone 5, the aerobic zone 6, the anoxic zone 7 and the aerobic zone 8, and in order to prevent the filler from flowing away, stainless steel mesh nets 12 for preventing the filler from flowing away are fixed at the pipe orifices at the upper ends of the water pipe two 52, the water pipe four 72 and the water pipe five 82 through clamps 11, as shown in fig. 6; the third water passing pipe 62 is also required to be penetrated by the stirring shaft 21 of the stirrer 2, so that the filler is not easy to enter when the stirring shaft 21 rotates, or a stainless steel mesh net can be also arranged at the pipe orifice of the third water passing pipe 62 according to requirements, and only a hole is reserved in the center of the stainless steel mesh net for the stirring shaft 21 to penetrate.
An exhaust pipe six 91 is fixed on the upper part of the tank wall of the secondary sedimentation zone 9 and is used for exhausting waste gas generated in the secondary sedimentation zone; in the present embodiment, the exhaust pipe one 41, the exhaust pipe two 51, the exhaust pipe three 61, the exhaust pipe four 71, the exhaust pipe five 81 and the exhaust pipe six 91 are connected through a main exhaust pipe 10, so that the exhaust gas is uniformly discharged outside, so as to be buried in a tank body conveniently.
The tank wall of the secondary sedimentation zone 9 is provided with a water outlet 92, as shown in fig. 5, two circles of water passing weirs 95 are arranged from the center to the tank wall in the secondary sedimentation zone 9, and the bottom of the secondary sedimentation zone 9 is provided with a perforated mud pipe 93.
The perforated sludge discharge pipe 93 is connected with a sludge return pipe 94, the sludge return pipe 94 is provided with two outlets, one is connected with the inside of the anaerobic zone 5 and is a sludge return port (the pipe orifice is controlled by an electromagnetic valve to be switched on and off), and the other is communicated with the sludge discharge port 55 (the electromagnetic valve is also controlled to be switched on and off); the precipitated sludge generated in the unit flows back to the upper anaerobic zone 5 unit in a gas stripping mode to supplement the concentration of the activated sludge, and simultaneously the aged sludge can be discharged out of the equipment through a sludge discharge port 55, and the aged sludge contains nitrogen and phosphorus and can be used as an organic fertilizer for crops.
The stirrer 2 is fixed at the center of the top of the tank body 1, and a stirring shaft 21 of the stirrer 2 vertically and downwards penetrates through the first water passing pipe 42, the first water collecting groove 53, the third water passing pipe 62 and the second water collecting groove 73 in sequence.
Wherein, a sleeve 13 is welded at the center of the bottom plate of the anaerobic zone 5, and a stirring shaft 21 passes through the sleeve 13; a pipe orifice at the lower end of the sleeve 13 extends into the aerobic first zone 6 and is positioned above the third water passing pipe 62 (positioned above the liquid level), and a pipe orifice at the upper end of the sleeve 13 is higher than the second water passing pipe 52 (positioned above the liquid level) and is not contacted with the first water collecting groove 53; the sleeve 13 is used for the stirring shaft 21 to pass through the bottom plate of the anaerobic zone 5 without leading the sewage in the anaerobic zone 5 to directly flow into the aerobic zone 6.
The part of the stirring shaft 21 positioned in the water inlet adjusting area 4 is connected with two angle iron stirring blades 22, and the stirring shaft 21 is fixedly connected with the water receiving tank I53 and the water receiving tank II 73 into a whole; thus, the angle iron stirring blades 22, the water collecting tank I53 and the combined water distribution pipe I54, and the water collecting tank II 73 and the combined water distribution pipe II 74 can be driven by the stirrer 2 to rotate and stir together.
The air pump 3 is independent from the tank body 1, and is respectively connected with the first aeration device 63 and the second aeration device 83 through pipelines and electromagnetic valves to provide aeration, and meanwhile, the air pump 3 is also respectively connected with the sludge return pipe 94 and the nitrification liquid return pipe 77 through pipelines and electromagnetic valves to lift the sludge and the nitrification liquid by utilizing the air stripping principle.
In order to facilitate electrical control of the tank device, in this embodiment, an independent electrical automatic control cabinet for monitoring equipment may be disposed outside the tank 1, the electrical automatic control cabinet belongs to a supporting device of the tank device, and is not an innovation point of the present application.
The utility model discloses a basic working process as follows:
the collected sewage and wastewater is treated by a water inlet 49 and a lifting basket grid 48 of the device through a water outlet pipeline of a septic tank or an oil separation tank and then enters a water inlet adjusting area 4, after large suspended matters are removed from the sewage and wastewater is homogenized and uniformly adjusted, part of the sewage and wastewater automatically flows through a water pipe I42 and enters an anaerobic area 5 (generally about 40% of the water inlet flow), and the other part of the sewage and wastewater enters an anoxic area 7 through a flow dividing pipe 43 (about 60% of the water inlet flow); the flow of the shunt tube 43 is adjusted by the lifting rubber plug, no water flows through the device after the hand wheel 47 is rotated to screw the rubber plug 44, and the hand wheel 47 is rotated reversely to adjust the fit clearance between the rubber plug 44 and the shunt tube 43, so that water flows through the device.
The area is provided with the angle iron stirring blades 22, and because the section of the tank body 1 is circular, the water inflow is very small, and the hydraulic stirring cannot be utilized, the stirring blades 22 are driven by the stirrer 2 to stir, so that no deposit exists in the area; the basket grid 48 needs to be cleaned regularly, and the tank body 1 above the basket grid 48 can be designed into a movable and detachable cover plate.
Sewage and wastewater in a water pipe I42 of the water inlet regulating tank 4 automatically flows into the anaerobic zone 5, phosphorus is fully released in the anaerobic zone 5, a polyurethane filler is arranged in the anaerobic zone 5, microorganisms are enriched on the surface of the filler, and the filling rate is 15%; a water distribution stirring device consisting of a water receiving tank I53 and a water distribution pipe I54 is arranged in the anaerobic zone, sewage and wastewater automatically flow into the water distribution pipe 54 after being collected by the water receiving tank I53, and are uniformly distributed in the anaerobic zone 5 and stirred under the driving action of the stirrer 2, so that the phenomena of filler and sludge accumulation are prevented; the hydraulic retention time of the sewage and the wastewater in the unit is as follows: HRT is 2.7 h; the sludge concentration in the unit is as follows: MLSS is 3000 mg/L.
The sewage and wastewater treated by the anaerobic zone 5 automatically flows into the aerobic first zone 6 unit through a water pipe II 52; the sewage and wastewater are subjected to removal of organic matters, nitrosation and nitration of ammonia nitrogen, phosphorus-accumulating bacteria fully absorb phosphorus in excess by utilizing energy stored in the body to form phosphate to be stored in sludge, and the process mainly removes the organic matters, the ammonia nitrogen and total phosphorus in the sewage and wastewater.
The aeration device I63 in the unit adopts a ring-type aeration hose made of high polymer polyurethane material, and the density of the openings is 8000 per meter; polyurethane filler is also arranged in the aerobic first zone 6, microorganisms are enriched on the surface of the filler, and the filling rate is 20%; and when relevant pollutants are removed, the air of the aeration device I63 is used for stirring, so that the filler accumulation site is avoided. The hydraulic retention time of the sewage and the wastewater in the unit is as follows: HRT is 10.77 h; the sludge concentration in the unit is as follows: MLSS is 3000 mg/L.
The sewage and wastewater treated by the aerobic first zone 6 automatically flows into the anoxic zone 7 through a third water pipe 62; because the sewage and wastewater treated by the aerobic zone 6 contains a large amount of nitrate, in order to ensure that the total nitrogen of the effluent reaches the standard and save energy consumption, the shunt pipe 43 arranged in the inlet regulating reservoir 4 shunts most of the sewage and wastewater to enter the unit at the same time, so as to provide an organic carbon source for denitrification, thereby ensuring the removal of the total nitrogen. Polyurethane filler is also arranged in the unit, microorganisms are enriched on the surface of the filler, and the filling rate is 15%.
The anoxic pond area 7 is also internally provided with a water distribution stirring device consisting of a second water collecting tank 73 and a second water distribution pipe 74, sewage and wastewater are collected by the second water collecting tank 73 and then automatically flow into the water distribution pipe 74, and water is uniformly distributed in the anoxic area 7 and the filler is stirred under the driving action of the stirrer 2, so that the filler and sludge accumulation are prevented.
Meanwhile, nitrified liquid from the lower aerobic second zone 8 enters a deaerator 75 from a nitrified liquid return pipe 77 through the gas stripping action to reduce dissolved oxygen in the nitrified liquid, and then flows in from a water outlet pipe 76 to perform denitrification and denitrification in the unit; the hydraulic retention time of the sewage and the wastewater in the unit is as follows: HRT is 6.73 h; the sludge concentration in the unit is as follows: MLSS is 3000 mg/L.
The sewage and wastewater treated by the anoxic zone 7 automatically flows into the aerobic zone 8 through a water pipe IV 72, the sewage and wastewater deeply complete the removal of organic matters, the nitrosation and nitrification of ammonia nitrogen, phosphorus accumulating bacteria fully absorb phosphorus in excess by utilizing the energy stored in the body, phosphate is formed and stored in sludge, and the process mainly and deeply removes the organic matters, the ammonia nitrogen and total phosphorus in the sewage and wastewater.
The second aeration device 83 in the unit also adopts an annular aeration hose made of a high polymer polyurethane material, and the hole opening density is as follows: 8000 pieces/m; polyurethane filler is also arranged in the aerobic second zone 8. Microorganisms are enriched on the surface of the filler, and the filling rate is 20 percent; and the second aeration device 83 is used for air stirring while removing related pollutants, so that the generation of a filler accumulation site is avoided.
The return mode of the nitrifying liquid return pipe 77 of the unit is that air generated by the air pump 3 enters the nitrifying liquid return pipe 77 through an electromagnetic valve and a pipeline, and the nitrifying liquid of the unit returns to the anoxic zone 7 in an air stripping mode; the hydraulic retention time of the sewage and the wastewater in the unit is as follows: HRT is 6.73 h; the sludge concentration in the unit is as follows: MLSS is 3000 mg/L.
The sewage and wastewater treated by the aerobic second zone 8 automatically flows into the second settling zone 9 through the fifth water pipe 82, the sewage and wastewater are subjected to solid-liquid separation in the second settling zone 9, and the separated supernatant automatically flows through the multistage water weir 95 and is finally discharged out of the equipment through the water outlet 92.
Activated sludge precipitated at the bottom of the secondary sedimentation zone 9 passes through a perforated sludge discharge pipe 93, and is discharged and returned sludge (the returned sludge is used in the equipment debugging stage and does not return under normal conditions) from a sludge return pipe 94 to the sludge discharge port 55 periodically in a manner of air stripping; the main parameters of the unit are: the surface load was 0.55 m/h.
The device is a sewage and wastewater treatment device with the weight of 0.5-1 ton/day compared with the prior device in practice, the water inlet is rural domestic sewage in the same place, the water outlet index is first-level B, and the results are shown in the following table:
therefore, the utility model discloses it all has certain advantage to consider from aspects such as construction cost, play water stability, personnel's operating level.
The above description is only for the preferred embodiment of the present invention, but the protection 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 all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention is subject to the protection scope of the claims.
Claims (8)
1. Dirty waste water treatment jar of integration, its characterized in that: the method comprises the following steps: a tank, a stirrer and an air pump;
the interior of the tank body is divided into six layers, and the tank body sequentially comprises a water inlet adjusting area, an anaerobic area, an aerobic first area, an anoxic area, an aerobic second area and a secondary sedimentation area from top to bottom;
a first exhaust pipe is fixed on the upper part of the tank wall of the water inlet adjusting area, a first water passing pipe communicated with the anaerobic area is vertically fixed in the center of the water inlet adjusting area, a flow dividing pipe communicated with the anoxic area is vertically fixed in the water inlet adjusting area, a lifting rubber plug is installed at a pipe orifice at the upper end of the flow dividing pipe, a basket grid is fixed in the water inlet adjusting area, and a water inlet communicated with the basket grid is arranged at the top of the tank body;
a second exhaust pipe is fixed on the upper part of the tank wall of the anaerobic zone, a first water collecting tank is arranged in the center of the anaerobic zone, the lower end of the first water passing pipe extends into the first water collecting tank, and the lower part of the first water collecting tank is connected with at least one first water distribution pipe; a water pipe II communicated with the aerobic zone I is vertically fixed in the anaerobic zone; the anaerobic zone is filled with filler, and the tank wall of the anaerobic zone is provided with a sludge discharge port;
a third exhaust pipe is fixed on the upper part of the tank wall of the first aerobic zone, a third water passing pipe communicated with the anoxic zone is vertically fixed in the center of the first aerobic zone, the first aerobic zone is filled with filler, and a first aeration device is arranged at the bottom of the first aerobic zone;
a fourth exhaust pipe is fixed on the upper part of the tank wall of the anoxic zone, a second water collecting tank is arranged in the center of the anoxic zone, the lower end of the third water passing pipe extends into the second water collecting tank, and the lower part of the second water collecting tank is connected with at least one second water distribution pipe; a water pipe IV communicated with the aerobic zone II is vertically fixed in the anoxic zone; a degasser is fixed in the anoxic zone, the degasser is communicated with the anoxic zone through a water outlet pipe, and the degasser is communicated with the aerobic zone through a nitrifying liquid return pipe; the anoxic zone is filled with filler;
a fifth exhaust pipe is fixed on the upper part of the tank wall of the second aerobic zone, a fifth water pipe communicated with the second sedimentation zone is vertically fixed in the center of the second aerobic zone, a second aeration device is arranged at the bottom of the second aerobic zone, and a filler is filled in the second aerobic zone;
the upper part of the tank wall of the secondary sedimentation zone is fixedly provided with a sixth exhaust pipe, the tank wall of the secondary sedimentation zone is provided with a water outlet, at least one circle of water passing weir is arranged from the center to the tank wall in the secondary sedimentation zone, and the bottom of the secondary sedimentation zone is provided with a perforated mud pipe; the perforated sludge discharge pipe is connected with a sludge return pipe which is respectively communicated with the inside of the anaerobic zone and the sludge discharge port;
the stirrer is fixed in the center of the top of the tank body, and a stirring shaft of the stirrer vertically and downwards sequentially penetrates through the water passing pipe I, the water collecting tank I, the water passing pipe III and the water collecting tank II; the part of the stirring shaft positioned in the water inlet adjusting area is connected with a stirring blade, and the stirring shaft is fixedly connected with the water collecting tank I and the water collecting tank II respectively;
the air pump is respectively connected with the first aeration device, the second aeration device, the sludge return pipe and the nitrified liquid return pipe through pipelines.
2. The integrated sewage and wastewater treatment tank of claim 1, wherein: the tank body is a cylinder.
3. The integrated sewage and wastewater treatment tank of claim 1, wherein: the lifting rubber plug comprises a rubber plug, a screw rod and a nut; the nut is fixed on the top of the tank body, and the lead screw is in threaded connection with the nut; the rubber buffer is the back taper platform shape, the one end of lead screw and the big terminal surface center fixed connection of rubber buffer, the other end of lead screw stretches out jar body and is fixed with the hand wheel.
4. The integrated sewage and wastewater treatment tank according to claim 1 or 2, characterized in that: the first aeration device and the second aeration device are both annular aeration hoses; the aeration hose is made of high polymer polyurethane.
5. The integrated sewage and wastewater treatment tank of claim 1, wherein: the fillers in the anaerobic zone, the aerobic zone I, the anoxic zone and the aerobic zone II are all polyurethane fillers.
6. The integrated sewage and wastewater treatment tank of claim 1, wherein: and stainless steel mesh nets for preventing the filler from losing are fixed at the upper end pipe orifices of the water passing pipe II, the water passing pipe IV and the water passing pipe V through the hoops.
7. The integrated sewage and wastewater treatment tank of claim 1, wherein: the first exhaust pipe, the second exhaust pipe, the third exhaust pipe, the fourth exhaust pipe, the fifth exhaust pipe and the sixth exhaust pipe are connected with a main exhaust pipe.
8. The integrated sewage and wastewater treatment tank of claim 1, wherein: the automatic control device also comprises an electric automatic control cabinet which is positioned outside the tank body and used for monitoring equipment, and the air pump is integrated in the electric automatic control cabinet.
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| CN201920907344.9U CN210176686U (en) | 2019-06-17 | 2019-06-17 | Integrated sewage and wastewater treatment tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116081807A (en) * | 2023-03-16 | 2023-05-09 | 山东和正环保工程有限公司 | Sewage biochemical treatment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116081807A (en) * | 2023-03-16 | 2023-05-09 | 山东和正环保工程有限公司 | Sewage biochemical treatment device |
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