CN105366889A - High-standard urban sewage nitrogen and phosphorus removal system without external carbon sources - Google Patents
High-standard urban sewage nitrogen and phosphorus removal system without external carbon sources Download PDFInfo
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- CN105366889A CN105366889A CN201510843645.6A CN201510843645A CN105366889A CN 105366889 A CN105366889 A CN 105366889A CN 201510843645 A CN201510843645 A CN 201510843645A CN 105366889 A CN105366889 A CN 105366889A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
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Abstract
The present invention relates to a high-standard urban sewage nitrogen and phosphorus removal system without external carbon sources. Urban sewage is fed into an urban sewage water inlet of a chemical-biological flocculation reaction tank; flocculant is fed into a flocculant adding port of the chemical-biological flocculation reaction tank; a drainage port of the chemical-biological flocculation reaction tank is connected with a water inlet of a sedimentation tank by a pipe; a drainage port of the sedimentation tank is connected with a water inlet of a mainstream anammox reaction tank by a pipe; a drainage port of the mainstream anammox reaction tank is connected to a drainage pipeline; and a sludge discharge port of the sedimentation tank is connected into the urban sewage water inlet of the chemical-biological flocculation reaction tank by a pipe. According to the system provided by the present invention, an anammox process and a traditional process are integrated organically, the drawback that in the case of a large amount of water flow and significant fluctuations of water quality, quantity and environmental conditions, the anammox process runs unstably is avoided; nitrogen removal efficiency is high; and the external carbon sources are not required even if the carbon nitrogen ratio is low.
Description
Technical field
The present invention relates to a kind of Sewage treatment systems, is a kind of town sewage high standard denitrification dephosphorization system without the need to additional carbon.
Background technology
Along with the continuous aggravation of body eutrophication, the denitrogenation dephosphorizing of town sewage receives much concern always.Traditional biological denitrification phosphorous removal technique is widely applied in urban wastewater treatment, but there is the weak points such as energy and material consumption is higher, technical process is longer, floor space is larger, when sewage carbon-nitrogen ratio is on the low side, also need to add a large amount of external carbon source.Therefore, Application and Development sewage disposal novel process system that is efficient, green, low-carbon (LC) has become the important trend of current and following sewage disposal.
As novel biological dinitrification technology, Anammox, can significantly energy efficient compared with traditional denitrification process process, and without the need to additional carbon, and sludge yield is little, has broad based growth prospect, is subject to the extensive concern of domestic and international sewage disposal investigator.This technology is under anaerobic, and by peculiar microorganism colony, be directly electron donor with ammonia nitrogen, nitrite nitrogen is final electron acceptor(EA), and ammonia nitrogen and nitrite nitrogen are transformed into nitrogen, without the need to providing organic carbon source, can realize biological denitrificaion.
At present, Anammox technical study and engineer applied mainly concentrate on the denitrogenation of high temperature industrial waste water with high ammoniac nitrogen or anaerobic sludge digestion liquid, and the denitrogenation processing applied research for town sewage is also very limited.Urban wastewater treatment amount is large, complicated component, influence factor are many, and the prevailing technology Anammox technology that research and development are applicable to town sewage has important practical significance.
Anammox technology is used for town sewage and still has many comparatively distinct issues.Such as, influent ammonium concentration and water temperature lower and when obviously fluctuating, effective suppression of nitrobacteria (NOB) and the effectively catching of anaerobic ammonia oxidizing bacteria (Anammox) comparatively difficult, therefore, when this technology is used for the urban wastewater treatment of normal temperature, need under certain applicable elements and operating parameter, the denitrification effect of stability and high efficiency could be obtained.In addition, the actual motion clearance of denitrification of anaerobic ammonium oxidation and stability are subject to many factors restriction, are difficult to the effluent quality directly obtaining lower concentration, obtain high-level Nitrogen/Phosphorus Removal, also must arrange dephosphorization unit and meticulous denitrogenation unit.Therefore, itself and traditional denitrification dephosphorization technique system are carried out fusion and integrated, give full play to Anammox techniques save carbon source, the energy, stable, the reliable advantage of conventional art, it can be town sewage, particularly the efficient low-consume denitrogenation dephosphorizing of low carbon-nitrogen ratio sewage provides new way, and forms novel process for removing nitrogen and phosphor from sewage system.
Because organism can have a negative impact to autotrophic type anaerobic ammonia oxidizing bacteria, need to be removed before sewage enters anaerobic ammonia oxidation reactor, if but by its direct aerobe oxidation, to consider and unreasonable from resource reclaim angle as far as possible.In the applied research of the current prevailing technology of Anammox in the world, substantially all combine with anaerobic sludge digestion and effluent Anammox, to promote power self-support and carbon neutralization.Obviously different from foreign town sewage quality, China's town sewage, particularly southern area, concentration of wastewater is relatively low, and low, the inorganic suspended solids ratio of organic content is high, carbon-nitrogen ratio is generally on the low side, very unfavorable to denitrogenation dephosphorizing, therefore, the high standard stably reaching standard of process water outlet should as the primary goal of process system, mud acidifying and anaerobic digestion, as the important means of internal carbon source exploitation and mud decrement, take into account the recovery energy of organic matter of sewage on this basis.
Organism and suspended solids are separated in form of a sludge, directly as carbon source, or being re-used as high-quality carbon source by fermentation afterwards to add in traditional biological denitrification dephosphorization technique process, is recycle the cost-effective approach of " internal carbon source " organic one.Main component in mud is carbohydrate, protein, fat and grease, inherently a kind of carbon source be utilized, under anaerobic fermenting also can output great amount of soluble organism, especially micromolecular VFA is the high-quality matrix easily by denitrifying bacteria and dephosphorization bacterial utilization.Utilize mud or sludge fermentation liquid to supplement water-inlet carbon source, can biological denitrification dephosphorization efficiency be improved, the operation stability of enhanced process system and reliability.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of organism can effectively removed in sewage, suspended solids and nitrogen and phosphorus thing are provided, be easy to realize urban wastewater treatment firm stable water outlet up to standard, reduce energy and material consumption, promote that the resource utilization of sewage and a kind of of recovery energy are without the need to the town sewage high standard denitrification dephosphorization system of additional carbon simultaneously.
According to technical scheme provided by the invention, described a kind of town sewage high standard denitrification dephosphorization system without the need to additional carbon, it comprises chemical-biological flocculation reaction tank, settling tank and main flow Anammox reaction tank; Chemical-biological flocculation reaction tank is provided with town sewage water inlet interface, flocculation agent interpolation interface and drainage interface, and settling tank is provided with into water interface, drainage interface and spoil disposal interface, main flow Anammox reaction tank is provided with into water interface and drainage interface; At the town sewage water inlet interface access town sewage of chemical-biological flocculation reaction tank, interface access flocculation agent is added at the flocculation agent of chemical-biological flocculation reaction tank, the drainage interface of chemical-biological flocculation reaction tank is connected by pipeline with the water inlet interface of settling tank, the drainage interface of settling tank is connected by pipeline with the water inlet interface of main flow Anammox reaction tank, the drainage interface of main flow Anammox reaction tank connects drainage pipeline, and the spoil disposal interface of settling tank accesses the town sewage water inlet interface of chemical-biological flocculation reaction tank by a pipeline.
Described chemical-biological flocculation reaction tank is biological flocculation basin, chemical flocculation basin or chemical-biological combined flocculation pond.
Also comprise denitrogenation-phosphorus removal bio pond and solid-liquid separation tank, denitrogenation-phosphorus removal bio pond is provided with into water interface, enters mud interface and drainage interface, and solid-liquid separation tank is provided with into water interface, drainage interface and spoil disposal interface; The drainage interface of described main flow Anammox reaction tank is connected by pipeline with the water inlet interface in denitrogenation-phosphorus removal bio pond, the spoil disposal interface of settling tank enters mud interface by another pipeline access denitrogenation-phosphorus removal bio pond, the drainage interface in denitrogenation-phosphorus removal bio pond is connected by pipeline with the water inlet interface of solid-liquid separation tank, the spoil disposal interface of solid-liquid separation tank is connected by pipeline with the mud interface that enters in denitrogenation-phosphorus removal bio pond, and the drainage interface of solid-liquid separation tank is arranged outward by pipeline.
Also comprise denitrogenation-phosphorus removal bio pond and solid-liquid separation tank, denitrogenation-phosphorus removal bio pond is provided with into water interface, enters mud interface and drainage interface, and solid-liquid separation tank is provided with into water interface, drainage interface and spoil disposal interface, pipeline between the drainage interface of described settling tank and the water inlet interface of main flow Anammox reaction tank separates the water inlet interface that denitrogenation-phosphorus removal bio pond is accessed on a road, the spoil disposal interface of settling tank enters mud interface by another pipeline access denitrogenation-phosphorus removal bio pond, the drainage interface in denitrogenation-phosphorus removal bio pond is connected by pipeline with the water inlet interface of solid-liquid separation tank, the drainage interface of solid-liquid separation tank accesses the drainage pipeline that the drainage interface of described main flow Anammox reaction tank connects by pipeline, the spoil disposal interface of solid-liquid separation tank is connected by pipeline with the mud interface that enters in denitrogenation-phosphorus removal bio pond.
Also comprise denitrogenation-phosphorus removal bio pond, solid-liquid separation tank and sludge fermentation pond, denitrogenation-phosphorus removal bio pond is provided with into water interface, enters mud interface and drainage interface, and solid-liquid separation tank is provided with into water interface, drainage interface and spoil disposal interface, and sludge fermentation pond is provided with into mud interface, spoil disposal interface and drainage interface, the drainage interface of described main flow Anammox reaction tank is connected by pipeline with the water inlet interface in denitrogenation-phosphorus removal bio pond, the drainage interface in denitrogenation-phosphorus removal bio pond is connected by pipeline with the water inlet interface of solid-liquid separation tank, the spoil disposal interface of solid-liquid separation tank is connected by pipeline with the mud interface that enters in denitrogenation-phosphorus removal bio pond, the drainage interface of solid-liquid separation tank is arranged outward by pipeline, the spoil disposal interface of settling tank enters mud interface by another pipeline access sludge fermentation pond, the drainage interface in sludge fermentation pond accesses the water inlet interface in denitrogenation-phosphorus removal bio pond by pipeline, the spoil disposal interface in sludge fermentation pond is arranged outward by pipeline.
Also include anaerobic sludge digestion pond, anaerobic sludge digestion pond is provided with into mud interface and spoil disposal interface; What the spoil disposal interface of described settling tank and the pipeline entered between mud interface in sludge fermentation pond separated that a road accesses anaerobic sludge digestion pond enters mud interface, the spoil disposal interface in sludge fermentation pond enters mud interface by pipeline access anaerobic sludge digestion pond, and the spoil disposal interface in anaerobic sludge digestion pond is arranged outward by pipeline.
Also comprise denitrogenation-phosphorus removal bio pond, solid-liquid separation tank and sludge fermentation pond; Denitrogenation-phosphorus removal bio pond is provided with into water interface, enters mud interface and drainage interface, and solid-liquid separation tank is provided with into water interface, drainage interface and spoil disposal interface, and sludge fermentation pond is provided with into mud interface, spoil disposal interface and drainage interface; Pipeline between the drainage interface of described settling tank and the water inlet interface of main flow Anammox reaction tank separates the water inlet interface that denitrogenation-phosphorus removal bio pond is accessed on a road, the drainage interface in denitrogenation-phosphorus removal bio pond is connected by pipeline with the water inlet interface of solid-liquid separation tank, the drainage interface of solid-liquid separation tank accesses the drainage pipeline that the drainage interface of described main flow Anammox reaction tank connects by pipeline, the spoil disposal interface of solid-liquid separation tank is connected by pipeline with the mud interface that enters in denitrogenation-phosphorus removal bio pond; The spoil disposal interface of described settling tank enters mud interface by another pipeline access sludge fermentation pond, and the drainage interface in sludge fermentation pond accesses the water inlet interface in denitrogenation-phosphorus removal bio pond by pipeline, the spoil disposal interface in sludge fermentation pond is arranged outward by pipeline.
Also comprise anaerobic sludge digestion pond, anaerobic sludge digestion pond is provided with into mud interface and spoil disposal interface; What the spoil disposal interface of described settling tank and the pipeline entered between mud interface in sludge fermentation pond separated that a road accesses anaerobic sludge digestion pond enters mud interface, the spoil disposal interface in sludge fermentation pond enters mud interface by pipeline access anaerobic sludge digestion pond, and the spoil disposal interface in anaerobic sludge digestion pond is arranged outward by pipeline.
Described main flow Anammox reaction tank is segmentation pulling flow type Anammox reaction tank, recirculation channel type Anammox reaction tank or integrated pulling flow type Anammox reaction tank.
Described denitrogenation-phosphorus removal bio pond is for being common A
2/ O biological tank, improvement A
2/ O biological tank, A/O denitrification organisms pond or A/O phosphorus removal bio pond.
Described solid-liquid separation tank is second pond or MBR pond.
The present invention has the following advantages:
1. anaerobic ammonia oxidation process and traditional technology organically blend by system of the present invention, avoid at large discharge and water quality and quantity and envrionment conditions obviously fluctuate anaerobic ammonia oxidation process fluctuation of service drawback, play the advantage of the two, mutually learn from other's strong points to offset one's weaknesses, technical process is relatively simple, and nitric efficiency is high, also without the need to additional carbon under low ratio of carbon to ammonium condition, not only be applicable to urban wastewater treatment firm new construction, be also suitable for putting forward mark improvement project, and the optimizing operation of process system.
2. system of the present invention has merged internal carbon source utilization and these two kinds of novel process key elements of short range biological denitrification simultaneously, high-level Nitrogen/Phosphorus Removal can be obtained when processing low carbon-nitrogen ratio sewage without the need to additional carbon, during high-carbon nitrogen ratio sewage, also can realize the recovery energy of organic matter of sewage in processes; Adopt biology to be effectively separated organic matter of sewage with the mode of chemical flocculation precipitation, consume energy low, effective; Nitration reaction controlled at Nitrification Stage, reduce aeration rate demand, excess sludge production is low; Add the less energy-consumption feature of Anammox, the overall energy and material consumption of whole process system obviously reduces, and improves the sustainability of Sewage treatment systems.
3. system of the present invention has very strong combustion adjustment handiness, and can adjust flexibly according to influent quality and processing requirements and switch, stable effluent quality reaches the emission standard of GB18918-2002 one-level A or requirements at the higher level, and future in engineering applications is wide.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the embodiment of the present invention 1.
Fig. 2 is the process flow diagram of the embodiment of the present invention 2.
Fig. 3 is the process flow diagram of the embodiment of the present invention 3.
Fig. 4 is the process flow diagram of the embodiment of the present invention 4.
Fig. 5 is the process flow diagram of the embodiment of the present invention 5.
Fig. 6 is the process flow diagram of the embodiment of the present invention 6.
Fig. 7 is the process flow diagram of the embodiment of the present invention 7.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1
As shown in Figure 1, a kind of town sewage high standard denitrification dephosphorization system without the need to additional carbon, it comprises chemical-biological flocculation reaction tank 1, settling tank 2 and main flow Anammox reaction tank 3, chemical-biological flocculation reaction tank 1 is provided with town sewage water inlet interface, flocculation agent interpolation interface and drainage interface, settling tank 2 is provided with into water interface, drainage interface and spoil disposal interface, main flow Anammox reaction tank 3 is provided with into water interface and drainage interface, at the town sewage water inlet interface access town sewage of chemical-biological flocculation reaction tank 1, interface access flocculation agent is added at the flocculation agent of chemical-biological flocculation reaction tank 1, the drainage interface of chemical-biological flocculation reaction tank 1 is connected by pipeline with the water inlet interface of settling tank 2, the drainage interface of settling tank 2 is connected by pipeline with the water inlet interface of main flow Anammox reaction tank 3, the drainage interface of main flow Anammox reaction tank 3 connects drainage pipeline, the spoil disposal interface of settling tank 2 accesses the town sewage water inlet interface of chemical-biological flocculation reaction tank 1 by a pipeline.
Described chemical-biological flocculation reaction tank 1 can by the mode operation in biofloculation reaction tank 11, chemical flocculation reaction tank 12 or chemical-biological combined flocculation pond 13.When running according to chemical flocculation reaction tank 12 or chemical-biological combined flocculation pond 13, reaction tank short mix district's residence time is 0.5 ~ 1.0min, and velocity slope is 200 ~ 300Ns/m
2, the mixing zone residence time 10 ~ 25min at a slow speed, velocity slope is 40 ~ 70Ns/m
2, add PAM0.1 ~ 0.5mg/L if desired; When running according to biofloculation reaction tank 11 or chemical-biological combined flocculation pond 13, mud 0.3 ~ 1d in age, hydraulic detention time 0.5 ~ 1h.
Described settling tank 2 sedimentation time 1.5 ~ 2h, surface load 1.5 ~ 3m
3/ (m
2h).
Described main flow Anammox reaction tank 3 is segmentation pulling flow type Anammox reaction tank 31, recirculation channel type Anammox reaction tank 32 or integrated pulling flow type Anammox reaction tank 33, and reaction tank nitrogen removal rate all reaches more than 50%.The segmentation pulling flow type reaction tank 31 nitrosification district residence time 1 ~ 5h, DO1.5 ~ 2mg/L, the Anammox district residence time 2 ~ 6h, DO concentration is no more than 0.2mg/L, adds floating stuffing in reactor, filler packing ratio 30% ~ 50%; Recirculation channel type Anammox reaction tank 32 hydraulic detention time 2 ~ 6h, DO0.5 ~ 1.5mg/L, adds floating stuffing in reactor, filler packing ratio 20% ~ 40%; Integration pulling flow type Anammox reaction tank 33 hydraulic detention time 2 ~ 6h, DO0.2 ~ 1.0mg/L, reaction tank is with the form enrichment culture functional microorganism of granule sludge.
Embodiment 2
As shown in Figure 2, this embodiment is on the basis of embodiment 1, also add denitrogenation-phosphorus removal bio pond 4 and solid-liquid separation tank 5, denitrogenation-phosphorus removal bio pond 4 is provided with into water interface, enters mud interface and drainage interface, and solid-liquid separation tank 5 is provided with into water interface, drainage interface and spoil disposal interface; The drainage interface of described main flow Anammox reaction tank 3 is connected by pipeline with the water inlet interface in denitrogenation-phosphorus removal bio pond 4, the spoil disposal interface of described settling tank 2 enters mud interface by another pipeline access denitrogenation-phosphorus removal bio pond 4, the drainage interface in denitrogenation-phosphorus removal bio pond 4 is connected by pipeline with the water inlet interface of solid-liquid separation tank 5, the spoil disposal interface of solid-liquid separation tank 5 is connected by pipeline with the mud interface that enters in denitrogenation-phosphorus removal bio pond 4, and the drainage interface of solid-liquid separation tank 5 is arranged outward by pipeline.
Described denitrogenation-phosphorus removal bio pond 4 is common A
2/ O biological tank 41, improvement A
2/ O biological tank 42, A/O denitrification organisms pond 43 or A/O phosphorus removal bio pond 44.Improvement A
2/ O biological tank is at common A
2anaerobic/anoxic regulatory region is set up in the front end of/O technique anaerobic zone.Common A
2/ O biological tank 41 mud 15 ~ 20d in age, hydraulic detention time is 8 ~ 12h, anaerobic zone 1.0 ~ 1.5h, oxygen-starved area 1.0 ~ 3.0h; Improvement A
2/ O biological tank 42 runs mud 15 ~ 20d in age, and hydraulic detention time is pre-oxygen-starved area 20 ~ 30min, anaerobic zone 1.0 ~ 1.5h, oxygen-starved area 1.0 ~ 4h, and water inlet 10% ~ 50% water yield enters pre-oxygen-starved area; A/O denitrification organisms pond 43 mud 11 ~ 23d in age, hydraulic detention time is 8 ~ 14h, oxygen-starved area 0.5 ~ 3h; A/O phosphorus removal bio pond 44 mud 3.5 ~ 7d in age, hydraulic detention time is 3 ~ 8h, anaerobic zone 1 ~ 2h.
Described solid-liquid separation tank 5 is second pond 51 or MBR pond 52.Second pond 51 residence time 1.5 ~ 2h, surface load 0.7 ~ 0.8m
3/ (m
2h); MBR pond 52 membrane flux 0.5 ~ 0.75m
3/ (m
2h).
Embodiment 3
As shown in Figure 3, this embodiment is on the basis of embodiment 1, also add denitrogenation-phosphorus removal bio pond 4 and solid-liquid separation tank 5, denitrogenation-phosphorus removal bio pond 4 is provided with into water interface, enters mud interface and drainage interface, and solid-liquid separation tank 5 is provided with into water interface, drainage interface and spoil disposal interface, pipeline between the drainage interface of described settling tank 2 and the water inlet interface of main flow Anammox reaction tank 3 separates the water inlet interface that denitrogenation-phosphorus removal bio pond 4 is accessed on a road, the spoil disposal interface of settling tank 2 enters mud interface by another pipeline access denitrogenation-phosphorus removal bio pond 4, the drainage interface in denitrogenation-phosphorus removal bio pond 4 is connected by pipeline with the water inlet interface of solid-liquid separation tank 5, the drainage interface of solid-liquid separation tank 5 accesses the drainage pipeline that the drainage interface of described main flow Anammox reaction tank 3 connects by pipeline, the spoil disposal interface of solid-liquid separation tank 5 is connected by pipeline with the mud interface that enters in denitrogenation-phosphorus removal bio pond 4.Described denitrogenation-phosphorus removal bio pond 4 is common A
2/ O biological tank 41, improvement A
2/ O biological tank 42, A/O denitrification organisms pond 43 or A/O phosphorus removal bio pond 44.Described solid-liquid separation tank 5 is second pond 51 or MBR pond 52.
Embodiment 4
As shown in Figure 4, this embodiment is on the basis of embodiment 1, also add denitrogenation-phosphorus removal bio pond 4, solid-liquid separation tank 5 and sludge fermentation pond 6, denitrogenation-phosphorus removal bio pond 4 is provided with into water interface, enters mud interface and drainage interface, and solid-liquid separation tank 5 is provided with into water interface, drainage interface and spoil disposal interface, and sludge fermentation pond 6 is provided with into mud interface, spoil disposal interface and drainage interface, the drainage interface of described main flow Anammox reaction tank 3 is connected by pipeline with the water inlet interface in denitrogenation-phosphorus removal bio pond 4, the drainage interface in denitrogenation-phosphorus removal bio pond 4 is connected by pipeline with the water inlet interface of solid-liquid separation tank 5, the spoil disposal interface of solid-liquid separation tank 5 is connected by pipeline with the mud interface that enters in denitrogenation-phosphorus removal bio pond 4, the drainage interface of solid-liquid separation tank 5 is arranged outward by pipeline, the spoil disposal interface of settling tank 2 enters mud interface by another pipeline access sludge fermentation pond 6, the drainage interface in sludge fermentation pond 6 accesses the water inlet interface in denitrogenation-phosphorus removal bio pond 4 by pipeline, the spoil disposal interface in sludge fermentation pond 6 is arranged outward by pipeline.Described denitrogenation-phosphorus removal bio pond 4 is common A
2/ O biological tank 41, improvement A
2/ O biological tank 42, A/O denitrification organisms pond 43 or A/O phosphorus removal bio pond 44.Described solid-liquid separation tank 5 is second pond 51 or MBR pond 52.Described sludge fermentation pond 6 mud 3 ~ 6d in age.
Embodiment 5
As shown in Figure 5, this embodiment is on the basis of embodiment 4, also add anaerobic sludge digestion pond 7, and anaerobic sludge digestion pond 7 is provided with into mud interface and spoil disposal interface; What the spoil disposal interface of described settling tank 2 and the pipeline entered between mud interface in sludge fermentation pond 6 separated that a road accesses anaerobic sludge digestion pond 7 enters mud interface, the spoil disposal interface in sludge fermentation pond 6 enters mud interface by pipeline access anaerobic sludge digestion pond 7, and the spoil disposal interface in anaerobic sludge digestion pond 7 is arranged outward by pipeline.Described denitrogenation-phosphorus removal bio pond 4 is common A
2/ O biological tank 41, improvement A
2/ O biological tank 42, A/O denitrification organisms pond 43 or A/O phosphorus removal bio pond 44.Described solid-liquid separation tank 5 is second pond 51 or MBR pond 52.Described sludge fermentation pond 6 mud 3 ~ 6d in age.
Embodiment 6
As shown in Figure 6, this embodiment is on the basis of embodiment 1, also add denitrogenation-phosphorus removal bio pond 4, solid-liquid separation tank 5 and sludge fermentation pond 6; Denitrogenation-phosphorus removal bio pond 4 is provided with into water interface, enters mud interface and drainage interface, and solid-liquid separation tank 5 is provided with into water interface, drainage interface and spoil disposal interface, and sludge fermentation pond 6 is provided with into mud interface, spoil disposal interface and drainage interface; Pipeline between the drainage interface of described settling tank 2 and the water inlet interface of main flow Anammox reaction tank 3 separates the water inlet interface that denitrogenation-phosphorus removal bio pond 4 is accessed on a road, the drainage interface in denitrogenation-phosphorus removal bio pond 4 is connected by pipeline with the water inlet interface of solid-liquid separation tank 5, the drainage interface of solid-liquid separation tank 5 accesses the drainage pipeline that the drainage interface of described main flow Anammox reaction tank 3 connects by pipeline, the spoil disposal interface of solid-liquid separation tank 5 is connected by pipeline with the mud interface that enters in denitrogenation-phosphorus removal bio pond 4; The spoil disposal interface of described settling tank 2 enters mud interface by another pipeline access sludge fermentation pond 6, and the drainage interface in sludge fermentation pond 6 accesses the water inlet interface in denitrogenation-phosphorus removal bio pond 4 by pipeline, the spoil disposal interface in sludge fermentation pond 6 is arranged outward by pipeline.Described denitrogenation-phosphorus removal bio pond 4 is common A
2/ O biological tank 41, improvement A
2/ O biological tank 42, A/O denitrification organisms pond 43 or A/O phosphorus removal bio pond 44.Described solid-liquid separation tank 5 is second pond 51 or MBR pond 52.Described sludge fermentation pond 6 mud 3 ~ 6d in age.
Embodiment 7
As shown in Figure 7, this embodiment is on the basis of embodiment 6, also add anaerobic sludge digestion pond 7, and anaerobic sludge digestion pond 7 is provided with into mud interface and spoil disposal interface; What the spoil disposal interface of described settling tank 2 and the pipeline entered between mud interface in sludge fermentation pond 6 separated that a road accesses anaerobic sludge digestion pond 7 enters mud interface, the spoil disposal interface in sludge fermentation pond 6 enters mud interface by pipeline access anaerobic sludge digestion pond 7, and the spoil disposal interface in anaerobic sludge digestion pond 7 is arranged outward by pipeline.Described denitrogenation-phosphorus removal bio pond 4 is common A
2/ O biological tank 41, improvement A
2/ O biological tank 42, A/O denitrification organisms pond 43 or A/O phosphorus removal bio pond 44.Described solid-liquid separation tank 5 is second pond 51 or MBR pond 52.Described sludge fermentation pond 6 mud 3 ~ 6d in age.
Claims (10)
1. without the need to a town sewage high standard denitrification dephosphorization system for additional carbon, it is characterized in that: it comprises chemical-biological flocculation reaction tank (1), settling tank (2) and main flow Anammox reaction tank (3), chemical-biological flocculation reaction tank (1) is provided with town sewage water inlet interface, flocculation agent interpolation interface and drainage interface, settling tank (2) is provided with into water interface, drainage interface and spoil disposal interface, main flow Anammox reaction tank (3) is provided with into water interface and drainage interface, at the town sewage water inlet interface access town sewage of chemical-biological flocculation reaction tank (1), interface access flocculation agent is added at the flocculation agent of chemical-biological flocculation reaction tank (1), the drainage interface of chemical-biological flocculation reaction tank (1) is connected by pipeline with the water inlet interface of settling tank (2), the drainage interface of settling tank (2) is connected by pipeline with the water inlet interface of main flow Anammox reaction tank (3), the drainage interface of main flow Anammox reaction tank (3) connects drainage pipeline, the spoil disposal interface of settling tank (2) accesses the town sewage water inlet interface of chemical-biological flocculation reaction tank (1) by a pipeline.
2. a kind of town sewage high standard denitrification dephosphorization system without the need to additional carbon as claimed in claim 1, is characterized in that: described chemical-biological flocculation reaction tank (1) is biological flocculation basin (11), chemical flocculation basin (12) or chemical-biological combined flocculation pond (13).
3. as claimed in claim 1 without the need to the town sewage high standard denitrification dephosphorization system of additional carbon, it is characterized in that: also comprise denitrogenation-phosphorus removal bio pond (4) and solid-liquid separation tank (5), denitrogenation-phosphorus removal bio pond (4) are provided with into water interface, enter mud interface and drainage interface, and solid-liquid separation tank (5) is provided with into water interface, drainage interface and spoil disposal interface; The drainage interface of described main flow Anammox reaction tank (3) is connected by pipeline with the water inlet interface of denitrogenation-phosphorus removal bio pond (4), the spoil disposal interface of described settling tank (2) enters mud interface by another pipeline access denitrogenation-phosphorus removal bio pond (4), the drainage interface of denitrogenation-phosphorus removal bio pond (4) is connected by pipeline with the water inlet interface of solid-liquid separation tank (5), the spoil disposal interface of solid-liquid separation tank (5) is connected by pipeline with the mud interface that enters of denitrogenation-phosphorus removal bio pond (4), and the drainage interface of solid-liquid separation tank (5) is arranged outward by pipeline.
4. as claimed in claim 1 without the need to the town sewage high standard denitrification dephosphorization system of additional carbon, it is characterized in that: also comprise denitrogenation-phosphorus removal bio pond (4) and solid-liquid separation tank (5), denitrogenation-phosphorus removal bio pond (4) are provided with into water interface, enter mud interface and drainage interface, and solid-liquid separation tank (5) is provided with into water interface, drainage interface and spoil disposal interface, pipeline between the drainage interface of described settling tank (2) and the water inlet interface of main flow Anammox reaction tank (3) separates the water inlet interface that denitrogenation-phosphorus removal bio pond (4) are accessed on a road, the spoil disposal interface of settling tank (2) enters mud interface by another pipeline access denitrogenation-phosphorus removal bio pond (4), the drainage interface of denitrogenation-phosphorus removal bio pond (4) is connected by pipeline with the water inlet interface of solid-liquid separation tank (5), the drainage interface of solid-liquid separation tank (5) accesses the drainage pipeline that the drainage interface of described main flow Anammox reaction tank (3) connects by pipeline, the spoil disposal interface of solid-liquid separation tank (5) is connected by pipeline with the mud interface that enters of denitrogenation-phosphorus removal bio pond (4).
5. as claimed in claim 1 without the need to the town sewage high standard denitrification dephosphorization system of additional carbon, it is characterized in that: also comprise denitrogenation-phosphorus removal bio pond (4), solid-liquid separation tank (5) and sludge fermentation pond (6), denitrogenation-phosphorus removal bio pond (4) are provided with into water interface, enter mud interface and drainage interface, and solid-liquid separation tank (5) is provided with into water interface, drainage interface and spoil disposal interface, and sludge fermentation pond (6) are provided with into mud interface, spoil disposal interface and drainage interface, the drainage interface of described main flow Anammox reaction tank (3) is connected by pipeline with the water inlet interface of denitrogenation-phosphorus removal bio pond (4), the drainage interface of denitrogenation-phosphorus removal bio pond (4) is connected by pipeline with the water inlet interface of solid-liquid separation tank (5), the spoil disposal interface of solid-liquid separation tank (5) is connected by pipeline with the mud interface that enters of denitrogenation-phosphorus removal bio pond (4), the drainage interface of solid-liquid separation tank (5) is arranged outward by pipeline, the spoil disposal interface of settling tank (2) enters mud interface by another pipeline access sludge fermentation pond (6), the drainage interface in sludge fermentation pond (6) accesses the water inlet interface of denitrogenation-phosphorus removal bio pond (4) by pipeline, the spoil disposal interface in sludge fermentation pond (6) is arranged outward by pipeline.
6., as claimed in claim 5 without the need to the town sewage high standard denitrification dephosphorization system of additional carbon, it is characterized in that: also include anaerobic sludge digestion pond (7), anaerobic sludge digestion pond (7) are provided with into mud interface and spoil disposal interface; What the spoil disposal interface of described settling tank (2) and the pipeline entered between mud interface of sludge fermentation pond (6) separated that a road accesses anaerobic sludge digestion pond (7) enters mud interface, the spoil disposal interface in sludge fermentation pond (6) enters mud interface by pipeline access anaerobic sludge digestion pond (7), and the spoil disposal interface of anaerobic sludge digestion pond (7) is arranged outward by pipeline.
7. as claimed in claim 1 without the need to the town sewage high standard denitrification dephosphorization system of additional carbon, it is characterized in that: also comprise denitrogenation-phosphorus removal bio pond (4), solid-liquid separation tank (5) and sludge fermentation pond (6), denitrogenation-phosphorus removal bio pond (4) are provided with into water interface, enter mud interface and drainage interface, and solid-liquid separation tank (5) is provided with into water interface, drainage interface and spoil disposal interface, and sludge fermentation pond (6) are provided with into mud interface, spoil disposal interface and drainage interface, pipeline between the drainage interface of described settling tank (2) and the water inlet interface of main flow Anammox reaction tank (3) separates the water inlet interface that denitrogenation-phosphorus removal bio pond (4) are accessed on a road, the drainage interface of denitrogenation-phosphorus removal bio pond (4) is connected by pipeline with the water inlet interface of solid-liquid separation tank (5), the drainage interface of solid-liquid separation tank (5) accesses the drainage pipeline that the drainage interface of described main flow Anammox reaction tank (3) connects by pipeline, the spoil disposal interface of solid-liquid separation tank (5) is connected by pipeline with the mud interface that enters of denitrogenation-phosphorus removal bio pond (4), the spoil disposal interface of described settling tank (2) enters mud interface by another pipeline access sludge fermentation pond (6), the drainage interface in sludge fermentation pond (6) accesses the water inlet interface of denitrogenation-phosphorus removal bio pond (4) by pipeline, the spoil disposal interface of sludge fermentation pond (6) is arranged outward by pipeline.
8., as claimed in claim 7 without the need to the town sewage high standard denitrification dephosphorization system of additional carbon, it is characterized in that: also comprise anaerobic sludge digestion pond (7), anaerobic sludge digestion pond (7) are provided with into mud interface and spoil disposal interface; What the spoil disposal interface of described settling tank (2) and the pipeline entered between mud interface of sludge fermentation pond (6) separated that a road accesses anaerobic sludge digestion pond (7) enters mud interface, the spoil disposal interface in sludge fermentation pond (6) enters mud interface by pipeline access anaerobic sludge digestion pond (7), and the spoil disposal interface of anaerobic sludge digestion pond (7) is arranged outward by pipeline.
9. a kind of town sewage high standard denitrification dephosphorization system without the need to additional carbon as described in claim 1 ~ 8 any one, is characterized in that: described main flow Anammox reaction tank (3) is segmentation pulling flow type Anammox reaction tank (31), recirculation channel type Anammox reaction tank (32) or integrated pulling flow type Anammox reaction tank (33).
10. the town sewage high standard denitrification dephosphorization system without the need to additional carbon as described in claim 3 ~ 8 any one, is characterized in that: described denitrogenation-phosphorus removal bio pond (4) are common A
2/ O biological tank (41), improvement A
2/ O biological tank (42), A/O denitrification organisms pond (43) or A/O phosphorus removal bio pond (44); Described solid-liquid separation tank (5) is second pond (51) or MBR pond (52).
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