CN216998085U - Vertical sewage treatment module integrated reactor with low operation cost - Google Patents
Vertical sewage treatment module integrated reactor with low operation cost Download PDFInfo
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- CN216998085U CN216998085U CN202220804849.4U CN202220804849U CN216998085U CN 216998085 U CN216998085 U CN 216998085U CN 202220804849 U CN202220804849 U CN 202220804849U CN 216998085 U CN216998085 U CN 216998085U
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Abstract
A vertical sewage treatment module integrated reactor with low operation cost relates to the technical field of sewage treatment. The utility model aims to solve the problems that the integrated container sewage treatment device has large gas-water ratio and low aeration utilization rate in rural sewage treatment, so that the dissolved oxygen of a backflow mixed liquid is high to destroy the anaerobic state of an anaerobic tank and the anoxic state of an anoxic tank, and the nitrogen and phosphorus removal efficiency of a system is influenced, and meanwhile, the integrated container sewage treatment device has large occupied area and the problems of sludge leakage of a secondary sedimentation tank. The vertical structure is adopted, so that the effective water depth in the reactor is increased, the aeration air quantity utilization efficiency is increased, the similar granulation of the sludge is kept, and the sludge concentration is improved; the dissolved oxygen in the reflux mixed liquid is reduced, and the nitrogen and phosphorus removal efficiency and effect of the system are prevented from being influenced by the fact that the anaerobic state of the anaerobic zone and the anoxic state of the anoxic zone are damaged by overhigh dissolved oxygen. The utility model can obtain the vertical sewage treatment module integrated reactor with low operation cost.
Description
Technical Field
The utility model relates to the technical field of sewage treatment, in particular to a vertical sewage treatment module integrated reactor with low operation cost.
Background
The problem of rural sewage treatment is a prominent short board in environmental management in China, although China has greatly promoted rural sewage treatment in recent years, and sewage treatment facilities and equipment have been built in many rural areas, most of rural sewage is not effectively treated at present, and the built sewage treatment facilities and equipment cannot effectively operate or have an unobvious treatment effect due to various problems such as equipment problems, high operation and maintenance costs, process reasons and the like. The rural sewage treatment amount is generally 100-500 tons/day, and at present, integrated container equipment of 100-300 tons/day is basically adopted for treatment, although the integrated container equipment solves the problem of partial rural sewage, the integrated container equipment of different process principles still has the defects and shortcomings, such as: the integrated container sewage treatment device in rural sewage treatment has large gas-water ratio and low aeration utilization rate, so that the dissolved oxygen of the backflow mixed liquid is high, the anaerobic state of the anaerobic tank and the anoxic state of the anoxic tank are damaged, the nitrogen and phosphorus removal efficiency of the system is influenced, and meanwhile, the integrated container sewage treatment device occupies a large area and has the problems of mud leakage in a secondary sedimentation tank and the like. The problems lead to the common problems of high investment cost, high operating cost, large occupied area, high operation and maintenance management requirements, incapability of effective treatment, complex operation and management and the like of the rural sewage integrated container equipment. Therefore, in order to solve the problem of short sewage treatment in rural areas and to promote the overall sewage treatment in rural areas, a sewage treatment device which is easy to operate, good in effect, low in cost and suitable is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a vertical sewage treatment module integrated reactor with low operation cost, which aims to solve the problems that the anaerobic state of an anaerobic tank and the anoxic state of an anoxic tank are damaged due to high dissolved oxygen of backflow mixed liquid and the nitrogen and phosphorus removal efficiency of a system is influenced because the integrated container sewage treatment device in rural sewage treatment has large gas-water ratio and low aeration utilization rate, and the integrated container sewage treatment device occupies large floor area and runs mud in a secondary sedimentation tank.
A vertical sewage treatment module integrated reactor with low operation cost comprises a water distribution area module 1-2, an anaerobic area 2-1, an anoxic area 2-2, an aerobic area 2-3, a precipitation area, a filtering area 4-1, a clear water area 4-2, a medicament feeding area 4-3 and an equipment room 4-4;
the sedimentation zone consists of a nitrifying liquid reflux zone 3-1, a sedimentation water distribution zone 3-2, a sedimentation separation zone 3-3, a sedimentation sludge reflux zone 3-4 and a supernatant fluid collecting weir 3-5, wherein the supernatant fluid collecting weir 3-5 is arranged at the top of the sedimentation zone, and the supernatant fluid collecting weir 3-5 is communicated with a water inlet of the filtration zone 4-1 through a connecting pipeline 3-5-1; a water outlet of the nitrifying liquid reflux area 3-1 is communicated with a water inlet of the sedimentation water distribution area 3-2 through a water through hole 3-1-2, a power device a 3-1-1 is arranged in the nitrifying liquid reflux area 3-1, and the power device a 3-1-1 is communicated with a water inlet of the reflux tank 1-2-3 through a pipeline; a precipitation separation zone 3-3 surrounding the periphery of the nitrifying liquid reflux zone 3-1 is arranged below the precipitation water distribution zone 3-2, and a sludge separation device 3-3-1 and a sludge level sensor 3-3-2 are arranged in the precipitation separation zone 3-3; a precipitated sludge return area 3-4 surrounding the periphery of the nitrifying liquid return area 3-1 is arranged below the precipitation separation area 3-3, the precipitated sludge return area 3-4 is communicated with a water inlet of the return tank 1-2-3 through a pipeline, a power device b 3-4-1 is arranged on the pipeline, a perforated sludge discharge pipe 3-4-2 is arranged at the bottom of the precipitated sludge return area 3-4, a water outlet of the perforated sludge discharge pipe 3-4-2 is communicated with a water inlet of the precipitated sludge discharge main pipe 3-4-3, and the bottom of the precipitated sludge return area 3-4 is communicated with the bottom of the nitrifying liquid return area 3-1;
the upper part of the settling zone is provided with a water distribution zone module 1-2, the water distribution zone module 1-2 consists of a water inlet distribution side and a water return distribution side, the water inlet distribution side consists of a water inlet tank 1-2-1, water inlet distribution tanks 1-2-2 with the same number and water inlet distribution pipes 1-2-5, the water return distribution side consists of a water return tank 1-2-3, water return distribution tanks 1-2-4 with the same number and water return distribution pipes 1-2-6, the water inlet tank 1-2-1 is provided with a main water inlet pipe 1-1, the water outlet of the water inlet tank 1-2-1 is communicated with the water inlet of the water inlet distributing tank 1-2-2 through a pipeline, and the water outlet of the water inlet distributing tank 1-2-2 is communicated with the water inlet of the water inlet distributing tank 1-2-5 through a pipeline; the water outlet of the reflux tank 1-2-3 is communicated with the water inlet of the reflux water distribution tank 1-2-4 through a pipeline, the water outlet of the reflux water distribution tank 1-2-4 is communicated with the water inlet of the reflux water distribution pipe 1-2-6 through a pipeline, the bottom of the anaerobic zone 2-1 is provided with a water distribution head 1-2-7, and the water outlets of the water inlet water distribution pipe 1-2-5 and the reflux water distribution pipe 1-2-6 are communicated with the water inlet of the water distribution head 1-2-7;
an aerobic zone 2-3 is arranged below the sedimentation zone, an aerator 2-3-1 and a carrier filler 2-3-2 are arranged in the aerobic zone 2-3, the carrier filler 2-3-2 is arranged at the lower opening of the nitrifying liquid reflux zone 3-1, and a gas-water separator 2-3-3 is arranged at the upper part of the aerobic zone 2-3; an anoxic zone 2-2 is arranged below the aerobic zone 2-3, a blast aeration fan 5-1 is arranged in the equipment room 4-4, the air outlet of the blast aeration fan 5-1 is communicated with the air inlet of the aerator 2-3-1 through a pipeline, the lower part of the anoxic zone 2-2 is provided with a residual air quantity exhaust port 5-2, and an anaerobic zone 2-1 is arranged below the anoxic zone 2-2;
an integral module consisting of a filtering area 4-1, a clear water area 4-2, a medicament feeding area 4-3 and an equipment room 4-4 is arranged below the anaerobic area 2-1, solid-liquid separation filtering equipment 4-1-1 is arranged in the filtering area 4-1, a sludge discharge pipe 4-1-2 is arranged at the bottom of the filtering area 4-1, ultraviolet disinfection equipment 4-4-2 and a sludge discharge pump 4-4-3 are arranged in the equipment room 4-4, a water outlet of the sludge discharge pipe 4-1-2 is communicated with a water inlet of a sedimentation sludge discharge main pipe 3-4-3 through a pipeline, and the sludge discharge pump 4-4-3 is arranged on the pipeline; the water outlet of the filtering area 4-1 is communicated with the water inlet of the clean water area 4-2 through a pipeline; the medicament feeding area 4-3 is communicated with the water inlet of the clear water area 4-2 through a pipeline, and a medicament feeding pump 4-3-2 is arranged on the pipeline; the water outlet of the clear water area 4-2 is communicated with the water inlet of the ultraviolet disinfection equipment 4-4-2 through a pipeline.
The utility model has the beneficial effects that:
the utility model relates to a vertical sewage treatment module integrated reactor with low operation cost, which adopts a vertical structure, greatly increases the effective water depth in the reactor, and the effective water depth in an aeration aerobic zone can reach the effective water depth of a large and medium-sized municipal sewage treatment plant and is far higher than the effective water depth of a biochemical pool of the existing integrated container equipment, thereby greatly increasing the utilization efficiency of aeration air volume in the biochemical pool, reducing the aeration air volume required by biochemistry, weakening the disturbance of the aeration process on sludge in the biochemical pool, having great effect on keeping the similar granulation of the sludge, and further improving the sludge concentration in the biochemical pool; meanwhile, the excessive aeration phenomenon is reduced, the dissolved oxygen in the backflow mixed liquid is reduced, the nitrogen and phosphorus removal efficiency and effect of the system are prevented from being influenced by the fact that the anaerobic state of the anaerobic zone and the anoxic state of the anoxic zone are damaged by the excessive dissolved oxygen in the backflow liquid, synchronous nitrogen and phosphorus removal is realized, especially when the nitrogen and phosphorus concentration of the treated sewage is high (TP is more than 8mg/L and TN is more than 60mg/L), the biological nitrogen and phosphorus removal can be efficiently and economically carried out by operating the reactor, and compared with the TN and TP removal effects, the treatment effect of the integrated container equipment of various processes is superior to that of the treatment effect of the integrated container equipment of various processes. Meanwhile, the space height is fully utilized, the occupied area is reduced, and the operation cost is reduced.
The vertical sewage treatment module integrated reactor with low operation cost realizes mud-water separation, adopts a gas lift circulation technology in a separation and sedimentation area to realize the full-range rapid discharge of precipitated sludge, has no accumulation dead zone area in a sedimentation tank, and is provided with a sludge level detection sensor to thoroughly solve the problem of sludge leakage in the sedimentation tank.
Thirdly, the vertical sewage treatment module integrated reactor with low operation cost is characterized in that water distribution of inlet water and return water is uniform by adopting a water distributor and water distribution heads, and water distribution flow is controlled by liquid level difference gravity, so that uniform and stable water distribution flow among the water distribution heads is realized. Compared with the traditional method that the water is directly fed and distributed by backflow through the lift pump of the integrated container equipment with various processes, the reactor disclosed by the utility model has the advantages that the water quantity is more stable, the water distribution is more uniform, and meanwhile, the problem of long-time occurrence of inverted siphon when the water feeding of the integrated container equipment with various processes is stopped is solved.
The utility model provides a vertical sewage treatment module integrated reactor which is in standardized design, equipment, modularization, batch production, space saving and investment cost saving and has low operation cost, and the utility model realizes the matching with the water quantity scale by controlling the number of the module reactors, thereby realizing the standardization of decentralized sewage treatment facility construction, the operation standardization and the optimization of water purification effect. The utility model can save land occupation and investment cost in the promotion of the rural sewage treatment industry, can realize the rapid construction and efficient operation of dispersed sewage plants, and has good effluent quality and stable operation.
The utility model can obtain the vertical sewage treatment module integrated reactor with low operation cost.
Drawings
FIG. 1 is a schematic view showing an internal structure of a vertical integrated reactor of a sewage treatment module in accordance with example 1, wherein 1-1 is a main water inlet pipe, 1-2 is a water distribution module, 1-2-7 is a water distribution head, 2-1 is an anaerobic zone, 2-2 is an anoxic zone, 2-3 is an aerobic zone, 2-3-1 is an aerator, 2-3-2 is a carrier filler, 2-3-3 is a gas-water separator, 3-1 is a nitrified liquid reflux zone, 3-1-1 is a power unit a, 3-1-2 is a water through hole, 3-2 is a precipitation water distribution zone, 3-3 is a precipitation separation zone, 3-3-1 is a sludge separation unit, 3-3-2 is a sludge level sensor, and 3-4 is a precipitation sludge reflux zone, 3-4-1 is a power device b, 3-4-2 is a perforated sludge discharge pipe, 3-4-3 is a precipitated sludge discharge main pipe, 3-5 is a supernatant fluid collecting weir, 3-5-1 is a connecting pipeline, 4-1 is a filtering area, 4-1-1 is solid-liquid separation filtering equipment, 4-1-2 is a sludge discharge pipe, 4-4 is an equipment room, 4-4-1 is a control cabinet, 4-4-2 is ultraviolet disinfection equipment, and 6-1 is a total water outlet pipe.
FIG. 2 is a front view of a vertical sewage treatment module integrated reactor of example 1, showing a low running cost, and FIG. 5-1 shows a blower aeration fan.
FIG. 3 is a left side view of the vertical sewage treatment module integrated reactor of example 1, showing a low running cost, and FIG. 5-2 shows a residual gas exhaust port.
FIG. 4 is a rear view of a vertical sewage treatment module integrated reactor of example 1, in which 1-1 is a total water inlet pipe, with low running cost.
FIG. 5 is a top view of the vertical sewage treatment module integrated reactor of example 1, wherein 1-1 is a total water inlet pipe, 1-2-1 is a water inlet tank, 1-2-2 is a water inlet distribution tank, 1-2-3 is a reflux tank, 1-2-4 is a reflux distribution tank, 1-2-5 is a water inlet distribution pipe, 1-2-6 is a reflux distribution pipe, and 5-1 is a blast aeration fan.
Fig. 6 is a cross-sectional view in the direction B-B in fig. 2, and fig. 1-2-7 is a water distribution head.
FIG. 7 is a sectional view taken along the direction C-C in FIG. 2, where 4-2 is a clear water region, 4-3 is a chemical dosing region, 4-3-1 is a stirrer, 4-3-2 is a dosing pump, 4-4 is a plant room, 4-4-3 is a sludge discharge pump, and 6-1 is a total water outlet pipe.
FIG. 8 is a test chart of COD removal effect of the vertical integrated sewage treatment module reactor with low operation cost, wherein ■ represents an inlet water test value, and ● represents an outlet water test value.
FIG. 9 is a test chart of the ammonia nitrogen removal effect of the vertical integrated sewage treatment module reactor with low operation cost, wherein ■ represents an inflow test value, and ● represents an outflow test value.
FIG. 10 is a test chart of TN removal efficiency of the vertical sewage treatment module integrated reactor with low operation cost, wherein ■ represents a water inlet test value, and ● represents a water outlet test value.
FIG. 11 is a test chart of TP removal effect of the integrated reactor of the vertical sewage treatment module with low operation cost, ■ represents a water inlet test value, and ● represents a water outlet test value.
Detailed Description
The first specific implementation way is as follows: the embodiment provides a vertical sewage treatment module integrated reactor with low operation cost, which comprises a water distribution area module 1-2, an anaerobic area 2-1, an anoxic area 2-2, an aerobic area 2-3, a precipitation area, a filtering area 4-1, a clear water area 4-2, a medicament feeding area 4-3 and an equipment room 4-4;
the sedimentation zone consists of a nitrifying liquid reflux zone 3-1, a sedimentation water distribution zone 3-2, a sedimentation separation zone 3-3, a sedimentation sludge reflux zone 3-4 and a supernatant liquid water collecting weir 3-5, wherein the supernatant liquid water collecting weir 3-5 is arranged at the top of the sedimentation zone, and the supernatant liquid water collecting weir 3-5 is communicated with a water inlet of the filtering zone 4-1 through a connecting pipeline 3-5-1; the water outlet of the nitrifying liquid reflux area 3-1 is communicated with the water inlet of the sedimentation water distribution area 3-2 through a water through hole 3-1-2, a power device a 3-1-1 is arranged in the nitrifying liquid reflux area 3-1, and the power device a 3-1-1 is communicated with the water inlet of the reflux tank 1-2-3 through a pipeline; a precipitation separation zone 3-3 surrounding the periphery of the nitrifying liquid reflux zone 3-1 is arranged below the precipitation water distribution zone 3-2, and a sludge separation device 3-3-1 and a sludge level sensor 3-3-2 are arranged in the precipitation separation zone 3-3; a settled sludge return-falling area 3-4 surrounding the periphery of the nitrifying liquid return-falling area 3-1 is arranged below the settling separation area 3-3, the settled sludge return-falling area 3-4 is communicated with a water inlet of the return tank 1-2-3 through a pipeline, a power device b 3-4-1 is arranged on the pipeline, a perforated sludge discharge pipe 3-4-2 is arranged at the bottom of the settled sludge return-falling area 3-4, a water outlet of the perforated sludge discharge pipe 3-4-2 is communicated with a water inlet of a settled sludge discharge main pipe 3-4-3, and the bottom of the settled sludge return-falling area 3-4 is communicated with the bottom of the nitrifying liquid return-falling area 3-1;
the upper part of the settling zone is provided with a water distribution zone module 1-2, the water distribution zone module 1-2 consists of a water inlet distribution side and a water return distribution side, the water inlet distribution side consists of a water inlet tank 1-2-1, water inlet distribution tanks 1-2-2 with the same number and water inlet distribution pipes 1-2-5, the water return distribution side consists of a water return tank 1-2-3, water return distribution tanks 1-2-4 with the same number and water return distribution pipes 1-2-6, the water inlet tank 1-2-1 is provided with a main water inlet pipe 1-1, the water outlet of the water inlet tank 1-2-1 is communicated with the water inlet of the water inlet distributing tank 1-2-2 through a pipeline, and the water outlet of the water inlet distributing tank 1-2-2 is communicated with the water inlet of the water inlet distributing tank 1-2-5 through a pipeline; the water outlet of the backflow groove 1-2-3 is communicated with the water inlet of the backflow water distribution groove 1-2-4 through a pipeline, the water outlet of the backflow water distribution groove 1-2-4 is communicated with the water inlet of the backflow water distribution pipe 1-2-6 through a pipeline, the bottom of the anaerobic zone 2-1 is provided with a water distribution head 1-2-7, and the water outlets of the water inlet water distribution pipe 1-2-5 and the backflow water distribution pipe 1-2-6 are communicated with the water inlet of the water distribution head 1-2-7;
an aerobic zone 2-3 is arranged below the sedimentation zone, an aerator 2-3-1 and a carrier filler 2-3-2 are arranged in the aerobic zone 2-3, the carrier filler 2-3-2 is arranged at the lower opening of the nitrifying liquid reflux zone 3-1, and a gas-water separator 2-3-3 is arranged at the upper part of the aerobic zone 2-3; an anoxic zone 2-2 is arranged below the aerobic zone 2-3, a blast aeration fan 5-1 is arranged in the equipment room 4-4, the air outlet of the blast aeration fan 5-1 is communicated with the air inlet of the aerator 2-3-1 through a pipeline, the lower part of the anoxic zone 2-2 is provided with a residual air quantity exhaust port 5-2, and an anaerobic zone 2-1 is arranged below the anoxic zone 2-2;
an integral module consisting of a filtering area 4-1, a clear water area 4-2, a medicament feeding area 4-3 and an equipment room 4-4 is arranged below the anaerobic area 2-1, solid-liquid separation filtering equipment 4-1-1 is arranged in the filtering area 4-1, a sludge discharge pipe 4-1-2 is arranged at the bottom of the filtering area 4-1, ultraviolet disinfection equipment 4-4-2 and a sludge discharge pump 4-4-3 are arranged in the equipment room 4-4, a water outlet of the sludge discharge pipe 4-1-2 is communicated with a water inlet of a sedimentation sludge discharge main pipe 3-4-3 through a pipeline, and the sludge discharge pump 4-4-3 is arranged on the pipeline; the water outlet of the filtering area 4-1 is communicated with the water inlet of the clear water area 4-2 through a pipeline; the medicament feeding area 4-3 is communicated with the water inlet of the clear water area 4-2 through a pipeline, and a medicament feeding pump 4-3-2 is arranged on the pipeline; the water outlet of the clear water area 4-2 is communicated with the water inlet of the ultraviolet disinfection equipment 4-4-2 through a pipeline.
When the vertical sewage treatment module integrated reactor with low operation cost is used for treating sewage, the retention time of the sewage in the anaerobic zone 2-1 is 1.0-1.25 hours, the hydraulic retention time of the anoxic zone 2-2 is 2.0-2.2 hours, the hydraulic retention time of the aerobic zone 2-3 is 4.0-5.0 hours, the retention time of the sedimentation zone is 2.0-2.5 hours, and the biochemical aeration gas-water ratio is (5-8):1, which is far smaller than that of the traditional integrated container type equipment.
The second embodiment is as follows: the present embodiment differs from the present embodiment in that: the water inlet and distribution side consists of a water inlet tank 1-2-1, 4 water inlet and distribution tanks 1-2-2 and 4 water inlet and distribution pipes 1-2-5, the backflow and distribution side consists of a backflow tank 1-2-3, 4 backflow and distribution tanks 1-2-4 and 4 backflow and distribution pipes 1-2-6, a liquid level controller is arranged in each backflow tank 1-2-3, and the start and stop of a lifting pump 3-1-1 are controlled, so that the constant backflow water amount is controlled by liquid level difference; each backflow water distribution pipe 1-2-6 is provided with an electromagnetic valve, so that the backflow ratios of 100%, 200%, 300% and 400% are accurately controlled.
Other steps are the same as those in the first embodiment.
The third concrete implementation mode: the first or second differences from the present embodiment are as follows: a filter screen is arranged between the water inlet tank 1-2-1 and the main water inlet pipe 1-1.
The other steps are the same as those in the first or second embodiment.
The fourth concrete implementation mode: the difference between this embodiment and one of the first to third embodiments is as follows: an oxidation-reduction potential instrument and a dissolved oxygen instrument are also arranged in the aerobic zone 2-3 and are used for detecting the oxidation-reduction potential and the dissolved oxygen in the aerobic zone 2-3 and controlling the operation frequency and the aeration air quantity of the blast aeration fan 5-1.
The other steps are the same as those in the first to third embodiments.
The fifth concrete implementation mode: the difference between this embodiment and one of the first to fourth embodiments is: the power device a 3-1-1 and the power device b 3-4-1 are both lifting pumps.
The other steps are the same as those in the first to fourth embodiments.
The sixth specific implementation mode: the difference between this embodiment and one of the first to fifth embodiments is as follows: the sludge separation device 3-3-1 is an inclined pipe or an inclined plate.
The other steps are the same as those in the first to fifth embodiments.
The seventh embodiment: the difference between this embodiment and one of the first to sixth embodiments is: the water outlet of the settling sludge discharge main pipe 3-4-3 is communicated with the water inlet of the sludge discharge pool through a pipeline.
The other steps are the same as those in the first to sixth embodiments.
The specific implementation mode eight: the difference between this embodiment and one of the first to seventh embodiments is: the solid-liquid separation filtering equipment 4-1-1 is an ultrafiltration membrane, a cloth filter or a sand filter.
The other steps are the same as those in the first to seventh embodiments.
The specific implementation method nine: the difference between this embodiment and the first to eighth embodiments is: and a nitrate nitrogen detector and a COD detector are arranged in the clean water area 4-2 and are used for feeding back data to an automatic control system for control and adjustment.
The other steps are the same as those in the first to eighth embodiments.
The detailed implementation mode is ten: the difference between this embodiment and one of the first to ninth embodiments is as follows: the control cabinet 4-4-1, the infrared temperature sensor and the vibration sensor are also arranged in the equipment room 4-4 and used for monitoring the working conditions of the equipment such as the blast aeration fan 5-1, the sludge discharge pump 4-4-3 and the like.
An ozone generator or a device for producing sodium hypochlorite by electrolysis is arranged in the equipment room 4-4 and is used for disinfecting the effluent in the clear water area 4-2.
The other steps are the same as those in the first to ninth embodiments.
The following examples were used to demonstrate the beneficial effects of the present invention:
example 1: a vertical sewage treatment module integrated reactor with low operation cost is a modularized integrated tank device, the diameter of which is 3m and the height of which is 10 m; comprises a water distribution area module 1-2, an anaerobic area 2-1, an anoxic area 2-2, an aerobic area 2-3, a precipitation area, a filtering area 4-1, a clear water area 4-2, a medicament feeding area 4-3 and an equipment room 4-4;
the sedimentation zone consists of a nitrifying liquid reflux zone 3-1, a sedimentation water distribution zone 3-2, a sedimentation separation zone 3-3, a sedimentation sludge reflux zone 3-4 and a supernatant fluid collecting weir 3-5, wherein the supernatant fluid collecting weir 3-5 is arranged at the top of the sedimentation zone, and the supernatant fluid collecting weir 3-5 is communicated with a water inlet of the filtration zone 4-1 through a connecting pipeline 3-5-1; the water outlet of the nitrifying liquid reflux area 3-1 is communicated with the water inlet of the sedimentation water distribution area 3-2 through a water through hole 3-1-2, a power device a 3-1-1 is arranged in the nitrifying liquid reflux area 3-1, and the power device a 3-1-1 is communicated with the water inlet of the reflux tank 1-2-3 through a pipeline; a precipitation separation zone 3-3 surrounding the periphery of the nitrifying liquid reflux zone 3-1 is arranged below the precipitation water distribution zone 3-2, and a sludge separation device 3-3-1 and a sludge level sensor 3-3-2 are arranged in the precipitation separation zone 3-3; a settled sludge return-falling area 3-4 surrounding the periphery of the nitrifying liquid return-falling area 3-1 is arranged below the settling separation area 3-3, the settled sludge return-falling area 3-4 is communicated with a water inlet of the return tank 1-2-3 through a pipeline, a power device b 3-4-1 is arranged on the pipeline, a perforated sludge discharge pipe 3-4-2 is arranged at the bottom of the settled sludge return-falling area 3-4, a water outlet of the perforated sludge discharge pipe 3-4-2 is communicated with a water inlet of a settled sludge discharge main pipe 3-4-3, and the bottom of the settled sludge return-falling area 3-4 is communicated with the bottom of the nitrifying liquid return-falling area 3-1;
the upper part of the settling zone is provided with a water distribution zone module 1-2, the water distribution zone module 1-2 consists of a water inlet distribution side and a water return distribution side, the water inlet distribution side consists of a water inlet tank 1-2-1, 4 water inlet distribution tanks 1-2-2 and 4 water inlet distribution pipes 1-2-5, the water return distribution side consists of a water return tank 1-2-3, 4 water return distribution tanks 1-2-4 and 4 water return distribution pipes 1-2-6, the water inlet tank 1-2-1 is provided with a main water inlet pipe 1-1, and a filter screen is arranged between the water inlet tank 1-2-1 and the main water inlet pipe 1-1; the water outlet of the water inlet tank 1-2-1 is communicated with the water inlet of the water inlet distribution tank 1-2-2 through a pipeline, and the water outlet of the water inlet distribution tank 1-2-2 is communicated with the water inlet of the water inlet distribution pipe 1-2-5 through a pipeline; the water outlet of the backflow tank 1-2-3 is communicated with the water inlet of the backflow water distribution tank 1-2-4 through a pipeline, the water outlet of the backflow water distribution tank 1-2-4 is communicated with the water inlet of the backflow water distribution pipe 1-2-6 through a pipeline, a liquid level controller is arranged in each backflow tank 1-2-3, and an electromagnetic valve is arranged on each backflow water distribution pipe 1-2-6; the bottom of the anaerobic zone 2-1 is provided with a water distribution head 1-2-7, and the water outlets of the water inlet distribution pipe 1-2-5 and the water return distribution pipe 1-2-6 are communicated with the water inlet of the water distribution head 1-2-7;
an aerobic zone 2-3 is arranged below the sedimentation zone, an aerator 2-3-1 and a carrier filler 2-3-2 are arranged in the aerobic zone 2-3, the carrier filler 2-3-2 is arranged at the lower opening of the nitrifying liquid reflux zone 3-1, and a gas-water separator 2-3-3 is arranged at the upper part of the aerobic zone 2-3; an anoxic zone 2-2 is arranged below the aerobic zone 2-3, a blast aeration fan 5-1 is arranged in the equipment room 4-4, an air outlet of the blast aeration fan 5-1 is communicated with an air inlet of an aerator 2-3-1 through a pipeline, a residual air quantity exhaust port 5-2 is arranged at the lower part of the anoxic zone 2-2, and an anaerobic zone 2-1 is arranged below the anoxic zone 2-2;
an integral module consisting of a filtering area 4-1, a clear water area 4-2, a medicament feeding area 4-3 and an equipment room 4-4 is arranged below the anaerobic area 2-1, solid-liquid separation filtering equipment 4-1-1 is arranged in the filtering area 4-1, a sludge discharge pipe 4-1-2 is arranged at the bottom of the filtering area 4-1, ultraviolet disinfection equipment 4-4-2 and a sludge discharge pump 4-4-3 are arranged in the equipment room 4-4, a water outlet of the sludge discharge pipe 4-1-2 is communicated with a water inlet of a sedimentation sludge discharge main pipe 3-4-3 through a pipeline, and the sludge discharge pump 4-4-3 is arranged on the pipeline; the water outlet of the filtering area 4-1 is communicated with the water inlet of the clean water area 4-2 through a pipeline; the medicament feeding area 4-3 is communicated with the water inlet of the clear water area 4-2 through a pipeline, and a medicament feeding pump 4-3-2 is arranged on the pipeline; the water outlet of the clear water area 4-2 is communicated with the water inlet of the ultraviolet disinfection equipment 4-4-2 through a pipeline.
An oxidation-reduction potentiometer and a dissolved oxygen instrument are also arranged in the aerobic zone 2-3.
The power device a 3-1-1 and the power device b 3-4-1 are both lift pumps; the sludge separation device 3-3-1 is an inclined pipe or an inclined plate; the water outlet of the settling sludge discharge main pipe 3-4-3 is communicated with the water inlet of the sludge discharge pool through a pipeline.
The solid-liquid separation filtering equipment 4-1-1 is an ultrafiltration membrane, a filter cloth filter or a sand filter; a nitrate nitrogen detector and a COD detector are arranged in the clean water area 4-2; the control cabinet 4-4-1, the infrared temperature sensor and the vibration sensor are also arranged in the equipment room 4-4; an ozone generator or a device for producing sodium hypochlorite by electrolysis is arranged in the equipment room 4-4; a plurality of upper ventilation air outlets and lower ventilation air inlets are arranged in an integral module of the filtering area 4-1, the clear water area 4-2, the medicament feeding area 4-3 and the equipment room 4-4.
Example 2: the vertical sewage treatment module integrated reactor with low operation cost in the embodiment 1 is adopted to treat sewage of a municipal sewage plant in a certain city, and is used for verifying the beneficial effects of the utility model:
the scale of the treatment was 100m3The retention time of the sewage in the anaerobic zone 2-1 is 1.0-1.25 hours, the hydraulic retention time of the anoxic zone 2-2 is 2.0-2.2 hours, the hydraulic retention time of the aerobic zone 2-3 is 4.0-5.0 hours, the hydraulic retention time of the sedimentation zone is 2.0-2.5 hours, and the ratio of biochemical aeration gas to water is (5-8): 1. The effect of removing various indexes in the sewage is as follows:
fig. 8 is a test chart of the removal effect of the vertical sewage treatment module integrated reactor with low operation cost on COD, fig. 9 is a test chart of the removal effect of the vertical sewage treatment module integrated reactor with low operation cost on ammonia nitrogen, fig. 10 is a test chart of the removal effect of the vertical sewage treatment module integrated reactor with low operation cost on TN, and fig. 11 is a test chart of the removal effect of the vertical sewage treatment module integrated reactor with low operation cost on TP.
As shown in FIG. 8, wherein ■ represents the inlet water test value, and ● represents the outlet water test value, it can be seen that the vertical integrated sewage treatment module reactor has a good effect of treating domestic sewage on COD, the inlet water COD is 300-350 mg/L, the outlet water COD is kept below 45mg/L, and the average value is 42mg/L, which can reach the national discharge first-level standard.
As shown in fig. 9, wherein ■ represents the inlet water test value, ● represents the outlet water test value, it can be seen that the nitrification of ammonia nitrogen by the vertical sewage treatment module integrated reactor is complete under the condition of sufficient alkalinity. Under the conditions that the ammonia nitrogen of inlet water is 35-48 mg/L, TN and is 40-60 mg/L, and the average value is 50.5mg/L, the ammonia nitrogen of the final outlet water is kept below 3.0mg/L, the removal rate is more than 95%, the ammonia nitrogen removal rate of the existing domestic sewage treatment plant is generally about 80%, and the ammonia nitrogen removal rate is improved by about 15% compared with the ammonia nitrogen removal rate.
As shown in FIG. 10, where ■ represents the influent water test value and ● represents the effluent water test value, in the anoxic zone 2-2, denitrifying bacteria use readily biodegradable COD in the influent water as electron acceptors to reduce nitro-nitrogen to N2Thereby removing the nitrogen nutrient elements from the water body. The vertical sewage treatment module integrated reactor can effectively perform denitrification, the total nitrogen in effluent is kept below 13mg/L, and the total nitrogen removal rate is above 75%. Compared with the total nitrogen removal rate of other integrated container equipment which is only about 50%, the total nitrogen removal rate of the integrated container equipment is improved by about 25%.
As shown in fig. 11, wherein ■ represents the water inlet test value, ● represents the water outlet test value; phosphorus removal also affects more factors. The vertical sewage treatment module integrated reactor can eliminate the influence of Dissolved Oxygen (DO), organic matters and nitro nitrogen as much as possible. The vertical sewage treatment module integrated reactor can keep the effluent TP below 0.4mg/L, and the removal rate is above 95%.
Synthesize above-mentioned test, the vertical sewage treatment module integration reactor of this embodiment low running cost is as follows to the removal effect of pollutant: the removal effect on COD and ammonia nitrogen is good, the COD of the effluent is below 45mg/L, and the ammonia nitrogen effluent is below 3.0 mg/L; TN effluent is below 13mg/L, TP effluent is about 0.4 mg/L. The removal rates of ammonia nitrogen, TN and TP are respectively up to 95%, 75% and 95%, and the water purification effect is excellent.
Of course, the above description is not intended to limit the operation cost of the vertical sewage treatment module integrated reactor of the present invention, and the operation cost of the vertical sewage treatment module integrated reactor of the present invention is not limited to the above examples, and those skilled in the art can make changes, modifications, additions or substitutions within the scope of the spirit of the vertical sewage treatment module integrated reactor of the present invention, and fall within the scope of the vertical sewage treatment module integrated reactor of the present invention.
Claims (10)
1. A vertical sewage treatment module integrated reactor with low operation cost is characterized by comprising a water distribution area module (1-2), an anaerobic area (2-1), an anoxic area (2-2), an aerobic area (2-3), a precipitation area, a filtering area (4-1), a clear water area (4-2), a medicament feeding area (4-3) and an equipment room (4-4);
the sedimentation zone consists of a nitrifying liquid reflux zone (3-1), a sedimentation water distribution zone (3-2), a sedimentation separation zone (3-3), a sedimentation sludge reflux zone (3-4) and a supernatant liquid collecting weir (3-5), wherein the supernatant liquid collecting weir (3-5) is arranged at the top of the sedimentation zone, and the supernatant liquid collecting weir (3-5) is communicated with a water inlet of the filtering zone (4-1) through a connecting pipeline (3-5-1); a water outlet of the nitrifying liquid reflux area (3-1) is communicated with a water inlet of the sedimentation water distribution area (3-2) through a water through hole (3-1-2), a power device a (3-1-1) is arranged in the nitrifying liquid reflux area (3-1), and the power device a (3-1-1) is communicated with a water inlet of the reflux tank (1-2-3) through a pipeline; a sedimentation separation area (3-3) surrounding the periphery of the nitrifying liquid reflux area (3-1) is arranged below the sedimentation water distribution area (3-2), and a sludge separation device (3-3-1) and a sludge level sensor (3-3-2) are arranged in the sedimentation separation area (3-3); a precipitated sludge return-falling area (3-4) surrounding the periphery of the nitrifying liquid return-falling area (3-1) is arranged below the precipitated separation area (3-3), the precipitated sludge return-falling area (3-4) is communicated with a water inlet of the return tank (1-2-3) through a pipeline, a power device b (3-4-1) is arranged on the pipeline, a perforated sludge discharge pipe (3-4-2) is arranged at the bottom of the precipitated sludge return-falling area (3-4), a water outlet of the perforated sludge discharge pipe (3-4-2) is communicated with a water inlet of a precipitated sludge discharge main pipe (3-4-3), and the bottom of the precipitated sludge return-falling area (3-4) is communicated with the bottom of the nitrifying liquid return-falling area (3-1);
the upper part of the settling zone is provided with a water distribution zone module (1-2), the water distribution zone module (1-2) consists of a water inlet distribution side and a water return distribution side, the water inlet distribution side consists of a water inlet tank (1-2-1), a water inlet distribution tank (1-2-2) and a water inlet distribution pipe (1-2-5), the water return distribution side consists of a water return tank (1-2-3), a water return distribution tank (1-2-4) and a water return distribution pipe (1-2-6), the water inlet tank (1-2-1) is provided with a main water inlet pipe (1-1), the water outlet of the water inlet tank (1-2-1) is communicated with the water inlet of the water inlet distribution tank (1-2-2) through a pipeline, and the water outlet of the water inlet distribution tank (1-2-2) is communicated with the water inlet distribution pipe (1-2-5) through a pipeline The water inlets are communicated; the water outlet of the backflow tank (1-2-3) is communicated with the water inlet of the backflow water distribution tank (1-2-4) through a pipeline, the water outlet of the backflow water distribution tank (1-2-4) is communicated with the water inlet of the backflow water distribution pipe (1-2-6) through a pipeline, the bottom of the anaerobic zone (2-1) is provided with a water distribution head (1-2-7), and the water outlets of the water inlet water distribution pipe (1-2-5) and the backflow water distribution pipe (1-2-6) are communicated with the water inlet of the water distribution head (1-2-7);
an aerobic zone (2-3) is arranged below the sedimentation zone, an aerator (2-3-1) and a carrier filler (2-3-2) are arranged in the aerobic zone (2-3), the carrier filler (2-3-2) is arranged at the lower opening of the nitrifying liquid reflux zone (3-1), and a gas-water separator (2-3-3) is arranged at the upper part of the aerobic zone (2-3); an anoxic zone (2-2) is arranged below the aerobic zone (2-3), a blast aeration fan (5-1) is arranged in the equipment room (4-4), the air outlet of the blast aeration fan (5-1) is communicated with the air inlet of the aerator (2-3-1) through a pipeline, a residual air quantity exhaust port (5-2) is arranged at the lower part of the anoxic zone (2-2), and an anaerobic zone (2-1) is arranged below the anoxic zone (2-2);
an integral module consisting of a filtering area (4-1), a clear water area (4-2), a medicament feeding area (4-3) and an equipment room (4-4) is arranged below the anaerobic area (2-1), solid-liquid separation filtering equipment (4-1-1) is arranged in the filtering area (4-1), a sludge discharge pipe (4-1-2) is arranged at the bottom of the filtering area (4-1), ultraviolet disinfection equipment (4-4-2) and a sludge discharge pump (4-4-3) are arranged in the equipment room (4-4), a water outlet of the sludge discharge pipe (4-1-2) is communicated with a water inlet of a sedimentation sludge discharge main pipe (3-4-3) through a pipeline, and the sludge discharge pump (4-4-3) is arranged on the pipeline; the water outlet of the filtering area (4-1) is communicated with the water inlet of the clean water area (4-2) through a pipeline; the medicament feeding area (4-3) is communicated with the water inlet of the clear water area (4-2) through a pipeline, and a feeding pump (4-3-2) is arranged on the pipeline; the water outlet of the clear water area (4-2) is communicated with the water inlet of the ultraviolet disinfection equipment (4-4-2) through a pipeline.
2. The vertical sewage treatment module integrated reactor with low operation cost according to claim 1, wherein the water inlet and distribution side comprises a water inlet tank (1-2-1), 4 water inlet and distribution tanks (1-2-2) and 4 water inlet and distribution pipes (1-2-5), the water return and distribution side comprises a water return tank (1-2-3), 4 water return and distribution tanks (1-2-4) and 4 water return and distribution pipes (1-2-6), a liquid level controller is arranged in each water return tank (1-2-3), and an electromagnetic valve is arranged on each water return and distribution pipe (1-2-6).
3. The vertical sewage treatment module integrated reactor with low operation cost according to claim 1, wherein a filter screen is arranged between the water inlet tank (1-2-1) and the main water inlet pipe (1-1).
4. The vertical sewage treatment module integrated reactor with low operation cost according to claim 1, characterized in that an oxidation-reduction potential instrument and a dissolved oxygen instrument are arranged in the aerobic zone (2-3).
5. The vertical sewage treatment module integrated reactor with low operation cost according to claim 1, wherein the power device a (3-1-1) and the power device b (3-4-1) are both lift pumps.
6. The vertical sewage treatment module integrated reactor with low operation cost according to claim 1, wherein the sludge separation device (3-3-1) is an inclined tube or an inclined plate.
7. The vertical sewage treatment module integrated reactor with low operation cost as claimed in claim 1, wherein the water outlet of the sedimentation sludge discharge header pipe (3-4-3) is communicated with the water inlet of the sludge discharge tank through a pipeline.
8. The vertical sewage treatment module integrated reactor with low operation cost according to claim 1, wherein the solid-liquid separation filtering equipment (4-1-1) is an ultrafiltration membrane, a cloth filter or a sand filter.
9. The vertical sewage treatment module integrated reactor with low operation cost according to claim 1, wherein a nitrate nitrogen detector and a COD detector are arranged in the clean water area (4-2).
10. The vertical sewage treatment module integrated reactor with low operation cost according to claim 1, characterized in that a control cabinet (4-4-1), an infrared temperature sensor and a vibration sensor are further arranged in the equipment room (4-4); an ozone generator or a device for producing sodium hypochlorite by electrolysis is arranged in the equipment room (4-4).
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