CN211226811U - Integrated sewage treatment equipment - Google Patents
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- CN211226811U CN211226811U CN201921947032.7U CN201921947032U CN211226811U CN 211226811 U CN211226811 U CN 211226811U CN 201921947032 U CN201921947032 U CN 201921947032U CN 211226811 U CN211226811 U CN 211226811U
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- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model relates to a sewage treatment field provides an integration sewage treatment device. The integrated sewage treatment equipment comprises a central cylinder, a guide cylinder and an outer cylinder; the middle part of the central cylinder is provided with a filtering unit for removing suspended matters in sewage, and the bottom area of the central cylinder is communicated with a water inlet pipe; the guide cylinder is arranged between the outer cylinder and the central cylinder and is used for guiding the fluid overflowing from the central cylinder to the bottom of the outer cylinder; the middle part of the outer cylinder is provided with a biological contact oxidation packing layer, and the bottom of the outer cylinder is provided with a second aeration pipe. The integrated sewage treatment equipment provided by the utility model integrates primary intensified filtration and secondary biological contact oxidation, the fluid retention time is shorter, and the treatment efficiency is higher; the filler in the biological contact oxidation filler layer can be used for rapidly degrading the organic pollutant load fluctuating in the incoming water, keeping the quality of the outgoing water stable, and effectively solving the problems that the rainwater in the intercepting well directly overflows to pollute the river channel and increase the treatment load of a sewage plant.
Description
Technical Field
The utility model relates to a sewage treatment technical field especially relates to an integration sewage treatment device.
Background
The catch basin is an important component in a combined drainage pipe network system, and in dry seasons, sewage of the combined drainage pipe network firstly enters the catch basin to be collected, and then enters a sewage treatment plant through a sewage main pipe at the rear end of the catch basin to be treated; in rainy season, part of rainwater and sewage enter the intercepting well to be intercepted and flow into a rear-end sewage pipe to enter a sewage plant, and the mixed water of the rest rainwater and the sewage is discharged into a river channel through an overflow port at the upper end of the intercepting well.
Generally, the COD of municipal sewage plants is required to be more than 150mg/L according to the plant feeding standard, the COD of the mixed sewage of the actual intercepting well is 50 mg/L-70 mg/L, the microorganism culture of the biochemical section of the water plant is not facilitated, and the sewage plant needs to additionally add a carbon source, so that the treatment cost is greatly increased. At present, the quality of the sewage of the intercepting well in rainy season in most cities in south China can not reach the standard of municipal sewage plants for entering the factory, and can not reach the standard of overflow drainage. If the sewage of the intercepting well is directly discharged into the river in rainy season, the river channel can be polluted due to more organic pollutants such as COD (chemical oxygen demand), ammonia nitrogen and the like contained in the sewage, so that the initial rain pollution is caused, and the black and odorous water body is caused. Therefore, at present, equipment which occupies a small area and can quickly and efficiently treat the sewage of the intercepting well at the bypass is urgently needed, so that the treated effluent can meet the water quality requirement of direct drainage, and the treated concentrated sewage can meet the requirement of a sewage plant for entering the sewage plant.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an integration sewage treatment device for solve among the current vatch basin direct overflow of rainy season sewage and pollute the river course and increase the problem that the sewage factory handled the burden.
In order to solve the technical problem, the utility model provides an integrated sewage treatment device, which comprises a central cylinder, a guide cylinder and an outer cylinder; the middle part of the central cylinder is provided with a filtering unit for removing suspended matters in sewage, and the bottom area of the central cylinder is communicated with a water inlet pipe; the guide cylinder is arranged between the outer cylinder and the central cylinder and is used for guiding the fluid overflowing from the central cylinder to the bottom of the outer cylinder; the middle part of the outer barrel is provided with a biological contact oxidation packing layer, and the bottom of the outer barrel is provided with a second aeration pipe.
The biological contact oxidation filler layer comprises an upper barrier net, a lower barrier net and polyurethane sponge filled between the upper barrier net and the lower barrier net, and the upper barrier net and the lower barrier net are fixedly arranged in the outer barrel.
The filtering unit comprises an upper blocking net, a lower blocking net and a filtering layer filled between the upper blocking net and the lower blocking net, the upper blocking net and the lower blocking net are fixedly installed in the central cylinder, and the filtering layer comprises a polyurethane sponge layer and a fiber ball filling layer located above the polyurethane sponge layer.
Wherein the inner diameter ratio of the central cylinder to the outer cylinder is 0.3-0.6.
The top of the central cylinder is provided with a plurality of overflow ports, and the overflow ports are distributed in a multilayer manner along the axial direction of the central cylinder.
The outer cylinder and the central cylinder share a sleeve structure at the bottom, the guide cylinder is a cylinder body with openings at two ends, and the bottom of the guide cylinder is arranged in a suspended mode.
The bottom of the central cylinder is provided with a first aeration pipe, a first sludge discharge pipe is arranged below the filtering unit in the central cylinder, and a second sludge discharge pipe is arranged below the biological contact oxidation packing layer in the outer cylinder.
The first aeration pipe and the second aeration pipe are both connected with the same fan, and the fan is used for blowing air or oxygen into the first aeration pipe or the second aeration pipe.
The device comprises an outer barrel, a coagulation dosing device and a flocculation device, wherein the coagulation dosing device is positioned outside the outer barrel and used for mixing and flocculating the fluid to be treated and the medicament.
The coagulation dosing device comprises a medicine box and a mixer, the mixer is simultaneously connected with a sewage pipe and the medicine box, and a water outlet of the mixer is communicated with the water inlet pipe.
The integrated sewage treatment equipment provided by the utility model integrates the primary intensified filtration of the filtration unit and the secondary biological contact oxidation of the biological contact oxidation packing layer, so that the fluid retention time is shorter, and the treatment efficiency is higher; the filler in the biological contact oxidation filler layer can be used for rapidly degrading the organic pollutant load fluctuating in the incoming water, the quality of the outgoing water is kept stable, the ammonia nitrogen content of the outgoing water is stabilized below 1mg/L, the COD concentration is stabilized below 30mg/L, the first-level A outgoing water standard is met, and the problems that the rainwater in the intercepting well directly overflows to pollute a river channel and the treatment burden of a sewage plant is increased are effectively solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a perspective view of an integrated sewage treatment apparatus according to an embodiment of the present invention;
fig. 2 is a longitudinal sectional view of the integrated sewage treatment apparatus shown in fig. 1.
In the figure: 10. a central barrel; 11. a first aeration pipe; 12. an overflow port; 13. a first sludge discharge pipe; 20. a draft tube; 30. an outer cylinder; 31. a second aeration pipe; 32. an effluent weir; 33. a water outlet groove; 34. a second sludge discharge pipe; 40. a biological contact oxidation filler layer; 41. putting a block net; 42. a lower net; 50. a filtration unit; 51. an upper blocking net; 52. a lower blocking net; 60. and (4) a water inlet pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The integrated sewage treatment apparatus as shown in fig. 1 and 2 includes a central cylinder 10, a guide cylinder 20, and an outer cylinder 30. The guide cylinder 20 is disposed between the center cylinder 10 and the outer cylinder 30, and guides the fluid overflowing from the center cylinder 10 into the outer cylinder 30. The middle part of the outer cylinder 30 is provided with a biological contact oxidation packing layer 40, the middle part of the central cylinder 10 is provided with a filtering unit 50, and the biological contact oxidation packing layer 40 and the filtering unit 50 are both used for filtering fluid. The second aeration pipe 31 is installed at the bottom of the outer tub 30, and the bottom region of the central tub 10 communicates with the water inlet pipe 60.
In the embodiment of the present invention, the filtering unit 50 is used for filtering suspended matters in sewage; the second aeration pipe 31 is used for supplying oxygen to the biological contact oxidation packing layer 40, and organic matters carried by sewage are absorbed and degraded by microorganisms on the surface of the biological packing in the biological contact oxidation packing layer 40 to form a biological film, so that the organic matters in the water body are adsorbed and degraded. When the biological contact oxidation filling layer filter is used, fluid enters the bottom of the central cylinder 10 along the water inlet pipe 60, moves upwards from the bottom of the central cylinder 10, overflows into the guide cylinder 20 after being filtered by the filtering unit 50, then flows to the outer cylinder 30, and is discharged after being secondarily filtered by the biological contact oxidation filling layer 40. The biological contact oxidation packing layer 40 in the integrated sewage treatment equipment adopts a biological membrane technology, the problems of sludge expansion, sludge floating, sludge loss and the like do not exist, and the problems of mass transfer, oxygen supply and blockage do not need to be worried about, so that the sludge condition and the change operation parameters in a reaction area do not need to be monitored frequently, and the daily operation management is simpler and more convenient.
The embodiment of the utility model provides an integration sewage treatment device, total dwell time is only 2.6 hours, has the function of regulation, one-level intensive filtration and the biochemical degradation of second grade concurrently, and traditional sewage treatment plant's total dwell time is 12 ~ 24 hours even more, and this integration sewage treatment device fluid dwell time is shorter under the contrast, and treatment effeciency is higher. In the fluctuation range of the inflow ammonia nitrogen concentration of 10-30 mg/L and the COD concentration of 50-160 mg/L, the integrated sewage treatment equipment can rapidly degrade the organic pollutant load fluctuating in the inflow water by virtue of the filler in the biological contact oxidation packing layer 40, the stable outflow ammonia nitrogen of the outflow water quality is kept to be below 1mg/L, the COD concentration is kept to be below 30mg/L, the first-level A outflow water standard is met, and the problems that the rainwater in the intercepting well directly overflows to pollute a river channel and increase the treatment burden of a sewage plant are effectively solved.
Compare in traditional sewage treatment plant, the embodiment of the utility model provides an integration sewage treatment device collects the one-level intensive filtration of filter unit 50 and the biological contact oxidation of second grade of biological contact oxidation packing layer 40 as an organic whole, and at 25 ℃, the ammonia nitrogen NH in urceolus 30 is as an organic whole4 -The N nitrification efficiency reaches 250-600 g/(m3.d), which is much higher than 30-50 g/(m) of the traditional sewage treatment plant3D), a storage tank and a primary sedimentation tank are not needed, the suspended matter (SS) of the effluent is less than 15mg/L, the effluent is clear, a secondary sedimentation tank is not needed, and the investment land is greatly reduced. The daily treatment capacity of the integrated sewage treatment equipment is not less than 100 t-300 t, and the surface load treatment efficiency is 7.7t/m2And the surface load treatment efficiency of the traditional sewage treatment plant is 0.22-0.15 t/m2Compared with the prior art, the embodiment of the utility model provides an integration sewage treatment device, area of land used significantly reduces, adopts the formula of burying moreover, accords with very much the urban area and holds back the little current situation of well bypass sewage treatment planning area.
Wherein, the biological contact oxidation filler layer 40 comprises an upper barrier net 41, a lower barrier net 42 and polyurethane sponge filled between the upper barrier net 41 and the lower barrier net 42. Preferably, polyurethane sponge fills the space between the upper and lower screens 41, 42. The polyurethane sponge has extremely strong biological adhesiveness, and the full-filling fixed bed mode is adopted, so that the biofilm-forming biomass of the biological contact oxidation packing layer 40 is very large, the organic pollutant load which fluctuates in the incoming water can be rapidly degraded, and the stability of the quality of the outgoing water can be kept. Further, the upper barrier net 41 includes a plurality of fan-shaped stainless steel nets, the edges of the stainless steel nets are wrapped with stainless steel sheets, the stainless steel nets are made of 304 stainless steel, and the sizes of the mesh holes are 20mm × 20 mm. Specifically, the upper barrier net 41 and the lower barrier net 42 respectively comprise 12 stainless steel nets, the upper barrier net 41 and the lower barrier net 42 are respectively fixedly connected with a bracket through bolts, and the bracket is an angle iron bracket.
In the embodiment of the present invention, the density of the polyurethane sponge and the fiber balls filled in the central cylinder 10 and the outer cylinder 30 is close to 1g/cm3The filling material belongs to light filling material, is convenient to fill, has low requirement on the structural strength of equipment, and is convenient to construct and install. In addition, the two fillers are low in price and economical.
Wherein, the outer cylinder 30 comprises a cylindrical cylinder wall, the periphery and the bottom of which are sealed, and the top of which is open. The top of the outer cylinder 30 is provided with a water outlet weir 32, the water outlet weir 32 is connected with the cylinder wall of the outer cylinder 30 to form a ring-shaped water outlet groove 33, and the wall of the water outlet groove 33 is provided with a water outlet. The upper and lower screens 41, 42 are located between the first aeration pipe 11 and the effluent weir 32. When sewage flows over the effluent weir 32 through the biological contact oxidation packing layer 40, enters the annular effluent groove 33 and flows out along the annular effluent groove 33.
The filtering unit 50 includes an upper screen 51, a lower screen 52 and a filtering layer, and the filtering layer is located between the upper screen 51 and the lower screen 52. The lower blocking nets 52 are all circular sheets and comprise annular angle steel brackets and stainless steel nets welded and fixed in the annular angle steel. The stainless steel net is made of 304 stainless steel, and the meshes are 20mm multiplied by 20 mm; the annular angle steel bracket adopts Q235. The upper baffle net 51 is detachably connected with the annular angle iron bracket by bolts, and meshes of the upper baffle net 51 are consistent with meshes of stainless steel in the lower baffle net 52 in size. The upper barrier net 51 and the lower barrier net 52 are provided in one-to-one correspondence with the positions of the upper barrier net 41 and the lower barrier net 42. The filtering layer comprises a sponge filtering layer and a fiber ball filtering layer, and the fiber ball filtering layer is positioned above the sponge filtering layer. The sponge filtering layer comprises a plurality of polyurethane sponges with different specifications; the fiber ball filtering layer is formed by filling fiber balls. Preferably, the filtering layer fills the space between the upper barrier net 51 and the lower barrier net 52.
Specifically, the central cylinder 10 and the outer cylinder 30 in the embodiment of the present invention are of a sleeve structure sharing a cylinder bottom, the guide cylinder 20 is sleeved outside the central cylinder 10, and a gap exists between the bottom of the guide cylinder 20 and the shared cylinder bottom, so that the guide cylinder 20 is installed between the central cylinder 10 and the outer cylinder 30 in a suspended manner. After the fluid overflows from the bottom of the central cylinder 10, the fluid is drained by the cylinder wall of the guide cylinder 20 and flows into the cylinder bottom of the outer cylinder 30. Preferably, the axis of the central cylinder 10, the axis of the guide cylinder 20 and the axis of the outer cylinder 30 coincide with each other. In the embodiment of the utility model, the central cylinder 10, the guide cylinder 20 and the outer cylinder 30 are all made of Q235-A carbon structural steel, so that the anti-corrosion effect is good; the inner and outer walls of the central cylinder 10, the inner and outer walls of the guide cylinder 20 and the inner wall of the outer cylinder 30 are all subjected to oil coating and corrosion prevention treatment, so that the service life is prolonged.
The embodiment of the present invention provides a center tube 10, a draft tube 20 and an outer tube 30, wherein the inner diameters are designed according to different daily throughput requirements, and the embodiment of the present invention is not specifically limited. Preferably, the inner diameter ratio of the central cylinder 10 to the outer cylinder 30 is 0.3-0.6, so that the retention time of the water body in the central cylinder 10 and the outer cylinder 30 is sufficient, and the treatment speed is increased on the premise of ensuring the filtering effect.
Wherein, the draft tube 20 is fixedly connected with the outer side of the tube wall of the central tube 10 through an angle iron bracket. The periphery and the bottom of the central cylinder 10 are sealed, and the top is open or closed. The top of the central cylinder 10 is provided with a plurality of overflow ports 12, and the plurality of overflow ports 12 are uniformly distributed along the circumference of the central cylinder 10. Specifically, the plurality of overflow ports 12 are arranged in three layers up and down along the axial direction of the central cylinder 10, and each layer of overflow port 12 is distributed in a staggered manner with the overflow ports 12 of the adjacent layers.
In order to facilitate timely discharge of sludge blocked by the biological contact oxidation packing layer 40 and the filtering unit 50, the bottom of the central cylinder 10 is provided with a first aeration pipe 11 and a first sludge discharge pipe 13, and the first aeration pipe 11 and the first sludge discharge pipe 13 are matched to realize back flush pollution discharge. A second sludge discharge pipe 34 is installed at the bottom of the outer tub 30. The first sludge discharge pipe 13 is positioned between the lower baffle net 52 and the cylinder bottom, and the second sludge discharge pipes 34 are positioned between the lower barrier net 42 and the cylinder bottom of the outer cylinder 30. The first sludge discharge pipe 13 is connected with an external sewage pipeline through the cylinder walls of the central cylinder 10 and the outer cylinder 30, and the second sludge discharge pipe 34 is connected with the external sewage pipeline through the cylinder wall of the outer cylinder 30.
In the embodiment of the present invention, the first aeration pipe 11 and the second aeration pipe 31 are both connected to the same blower. Under the action of the fan, air or oxygen is alternately blown into the first aeration pipe 11 and the second aeration pipe 31. It should be noted that the first aeration pipe 11 and the second aeration pipe 31 may be connected to a blower, respectively, and this is not particularly limited. The first aeration pipe 11 is used for realizing that the first aeration pipe 11 and the second aeration pipe 31 are both annular pipes after backwashing. Wherein, first aeration pipe 11 is the annular pipe of single circle setting, and second aeration pipe 31 is the annular pipe of inside and outside two circles setting, is equipped with a plurality of trompils on the two circles pipeline of second aeration pipe 31 respectively, and the both sides symmetric distribution of every circle pipeline is followed to a plurality of trompils, and every limit sets up 30 trompils, and every circle pipeline is seted up 60 trompils altogether, and the aperture of each trompil is 3 mm. The first aeration pipe 11 is welded and fixed to the bottom of the central tube 10 by angle steel, and the second aeration pipe 31 is welded and fixed to the bottom of the outer tube 30 by angle steel. The first aeration pipe 11 is positioned above the water inlet pipe 60, the hole axis of the opening is obliquely upwards arranged relative to the horizontal direction, and the included angle between the hole axis and the horizontal direction is 40-50 degrees. Preferably, the angle between the axis of the opening and the horizontal is 45 °. The connecting pipes of the first aeration pipe 11 and the fan, and the connecting pipes of the second aeration pipe 31 and the fan are all installed on the outer wall of the central cylinder 10, and the connecting pipes extend along the axial direction of the central cylinder 10.
The embodiment of the utility model provides an in integrated sewage treatment device still including coagulating charge device, should coagulate charge device external in the outside of urceolus 30 for make pending fluid and medicament mix flocculation. Specifically, this charge device thoughtlessly congeals includes medical kit and blender, and the blender links to each other with medical kit and sewage pipe simultaneously, and the delivery port of blender links to each other with inlet tube 60. A medicine feeding pump is arranged on a communication pipeline between the mixer and the medicine chest so as to pump the medicine into the mixer to be fully mixed with the sewage. Wherein the agents comprise polyaluminium chloride agents, sodium hydroxide agents and polyacrylamide so as to flocculate the sewage and supplement alkalinity. The high-efficiency coagulation rapid filtration system composed of the mixer and the central cylinder 10 can remove most suspended substance impurities in the water body in a short time and adjust the pH value of the inlet water, so that the inlet water meets the biochemical inlet water requirement.
Further, the mixer includes a first mixer and a second mixer. The first mixer is provided with a sewage inlet and a dosing port, the dosing port of the first mixer is used for adding a polyaluminium chloride medicament and a sodium hydroxide medicament, the water outlet of the first mixer is communicated with the water inlet of the second mixer, the dosing port of the second mixer is used for adding a polyacrylamide medicament, and the water outlet of the second mixer is communicated with the water inlet pipe 60. When the quality of the inlet water is turbid and the alkalinity is insufficient, the agents supplemented in the mixer can rapidly supplement the alkalinity and coagulate muddy water, so that most suspended matters in the sewage are flocculated to form massive floccules, and the floccules are rapidly removed through the filtering unit of the central cylinder 10.
The embodiment of the utility model provides an integration sewage treatment device, the regional fast filter district that regards as in the central section of thick bamboo 10, the region between the outer wall of draft tube 20 and central section of thick bamboo 10 is the diversion district, and the region between the outer wall of draft tube 20 and the inner wall of urceolus 30 is biological contact oxidation district.
When the device is used, after sewage is coagulated and the alkalinity is supplemented through the coagulation dosing device, micro impurities such as suspended matters in the sewage are coagulated to form large floccules, and then the large floccules enter the bottom of the central cylinder 10 along the water inlet pipe 60 to be filtered. In the process of ascending flow of sewage in the central cylinder 10, large floccules formed by coagulation are intercepted by the filtering unit 50 to further realize the removal of suspended matters, filtered clear water flows into the flow guide area from an overflow port 12 at the upper end of the central cylinder 10 and is communicated with the bottom of the outer cylinder biological contact oxidation area from the lower end of the flow guide area, and under the action of gravitational potential energy, the sewage after being filtered to remove the suspended matters in the water enters the bottom of the biological contact oxidation area through the flow guide area.
Then, the sewage flows upward through the biological contact oxidation packing layer 40, the biological contact oxidation packing layer 40 is in an aerobic state under the continuous aeration and oxygen supply of the second aeration pipe 31, and organic matters such as COD, ammonia nitrogen and the like carried in the sewage are absorbed and degraded by the microorganisms of the biological contact oxidation packing layer 40 to grow and form a biological film with high activity. The biological membranes adsorb and degrade a large amount of organic matters such as ammonia nitrogen, COD and the like in the water body through substance exchange, and are used as necessary nutrient sources for the continuous growth of the biological membranes. Through long-time operation, the biomembrane on the surface of the biological contact oxidation filler layer 40 can continuously grow and thicken, and a small amount of aged biomembrane can be taken out along with the effluent, and can not be trapped and blocked in the biological contact oxidation filler layer 40. Meanwhile, the inner part of the biological contact oxidation packing layer 40 gradually forms a partial anoxic zone along with the continuous growth and thickening of the biological membrane, and the low dissolved oxygen state and COD in the water body and nitrate generated by the nitrification and metabolism of the external biological membrane create conditions for the propagation of denitrifying bacteria, so that the device realizes the function of partial synchronous nitrification and denitrification.
In addition, the fast filtering area in the central cylinder 10 will enter an aeration emptying stage after being used for a period of time, when the stage begins, the first aeration pipe 11 will open the first aeration electromagnetic valve under the control of the time relay to start aeration, when the gas-water ratio is more than 10: 1, the filter layer in the whole filter unit 50 is changed from a stacking compression state to a swelling state, and suspended matters intercepted by the filter layer in the filter unit 50 fall off under the air-water washing and are mixed with sewage to form muddy water mixed liquid. A first sludge discharging electromagnetic valve is mounted on a first sludge discharging pipe 13 at the bottom of the central cylinder 10, the first sludge discharging electromagnetic valve can be synchronously opened under the action of a time relay for emptying, and sludge-water mixed liquid continuously descends under the continuous strong air water flushing action and flows out of the integrated sewage treatment equipment from the first sludge discharging pipe 13 at the bottom. After the evacuation is finished, the first aeration electromagnetic valve and the first sludge discharge electromagnetic valve are closed simultaneously, the filtering layer losing the buoyancy of the water body is quickly restored to a natural stacking and compressing state, and the water inlet filtration is restarted after the regeneration is finished. When the first aeration electromagnetic valve is opened, the second aeration electromagnetic valve installed on the second aeration pipe 31 is in a closed state, and the fan only introduces air into the first aeration pipe 11.
Because the sludge production amount of the biological contact oxidation process is less, the sludge discharge period of the outer cylinder 30 is much longer than that of the central cylinder 10. The actual operation shows that the outer cylinder 30 only needs to discharge mud once for several months. When the outer barrel 30 needs to discharge the sludge, water inlet is stopped, the second sludge discharge pipe 34 at the bottom of the outer barrel 30 is opened for emptying, and the second sludge discharge pipe 34 is closed after emptying is finished, so that water inlet can be recovered again.
The embodiment of the utility model provides an integration sewage treatment device, the water yield is higher than 85%, can hold back well sewage and make its play water reach sewage plant one-level A effluent standard and can directly arrange the river in the short time fast processing, has alleviateed the treatment pressure of rear end sewage plant greatly, and the concentrated muddy water COD of surplus that central section of thick bamboo 10 produced in the evacuation stage is between 150 ~ 200mg/L, accords with the requirement of advancing the factory of sewage plant, can directly get into the sewage plant through holding back the terminal sewer pipe of well and handle.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. An integrated sewage treatment device is characterized by comprising a central cylinder, a guide cylinder and an outer cylinder; the middle part of the central cylinder is provided with a filtering unit for removing suspended matters in sewage, and the bottom area of the central cylinder is communicated with a water inlet pipe; the guide cylinder is arranged between the outer cylinder and the central cylinder and is used for guiding the fluid overflowing from the central cylinder to the bottom of the outer cylinder; the middle part of the outer barrel is provided with a biological contact oxidation packing layer, and the bottom of the outer barrel is provided with a second aeration pipe.
2. The integrated sewage treatment device according to claim 1, wherein the bio-contact oxidation packing layer comprises an upper barrier net, a lower barrier net and polyurethane sponge filled between the upper barrier net and the lower barrier net, and the upper barrier net and the lower barrier net are fixedly installed in the outer barrel.
3. The integrated sewage treatment device according to claim 1 or 2, wherein the filtering unit comprises an upper baffle net, a lower baffle net and a filtering layer filled between the upper baffle net and the lower baffle net, the upper baffle net and the lower baffle net are fixedly installed in the central cylinder, and the filtering layer comprises a polyurethane sponge layer and a fiber ball filling layer located above the polyurethane sponge layer.
4. The integrated sewage treatment apparatus of claim 1, wherein the inner diameter ratio of the central cylinder to the outer cylinder is 0.3 to 0.6.
5. The integrated sewage treatment device of claim 1, wherein a plurality of overflow ports are arranged at the top of the central cylinder, and the plurality of overflow ports are distributed in multiple layers along the axial direction of the central cylinder.
6. The integrated sewage treatment device according to claim 1, wherein the outer cylinder and the central cylinder share a bottom sleeve structure, the guide cylinder is a cylinder body with openings at two ends, and the bottom of the guide cylinder is suspended.
7. The integrated sewage treatment apparatus according to claim 1, wherein a first aeration pipe is installed at the bottom of the central cylinder, a first sludge discharge pipe is installed below the filtering unit in the central cylinder, and a second sludge discharge pipe is installed below the bio-contact oxidation packing layer in the outer cylinder.
8. The integrated sewage treatment apparatus of claim 7, wherein the first aeration pipe and the second aeration pipe are both connected to the same blower for blowing air or oxygen into the first aeration pipe or the second aeration pipe.
9. The integrated sewage treatment device according to claim 1, further comprising a coagulation and dosing device located outside the outer cylinder for mixing and flocculating the fluid to be treated and the medicament.
10. The integrated sewage treatment equipment according to claim 9, wherein the coagulation and dosing device comprises a medicine box and a mixer, the mixer is simultaneously connected with a sewage pipe and the medicine box, and a water outlet of the mixer is communicated with the water inlet pipe.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113121029A (en) * | 2021-05-13 | 2021-07-16 | 江阴市港城市政工程有限公司 | Municipal administration sewage pipes adsorbs deodorizing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113121029A (en) * | 2021-05-13 | 2021-07-16 | 江阴市港城市政工程有限公司 | Municipal administration sewage pipes adsorbs deodorizing device |
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