WO2020211525A1 - 一种应用生物倍增和流化床工艺的集成式一体化污水处理罐 - Google Patents

一种应用生物倍增和流化床工艺的集成式一体化污水处理罐 Download PDF

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WO2020211525A1
WO2020211525A1 PCT/CN2020/076290 CN2020076290W WO2020211525A1 WO 2020211525 A1 WO2020211525 A1 WO 2020211525A1 CN 2020076290 W CN2020076290 W CN 2020076290W WO 2020211525 A1 WO2020211525 A1 WO 2020211525A1
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zone
fluidized bed
sewage treatment
integrated
treatment tank
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PCT/CN2020/076290
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English (en)
French (fr)
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凌建军
张冬
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凌志环保股份有限公司
江苏凌志环保工程有限公司
江苏凌志环保设备有限公司
凌志环保临泉有限公司
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Publication of WO2020211525A1 publication Critical patent/WO2020211525A1/zh

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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

Definitions

  • the invention relates to the field of sewage treatment, in particular to an integrated sewage treatment tank applying biological multiplication and fluidized bed technology.
  • the biological multiplication process is a new type of sewage treatment process invented in Germany. It uses low dissolved oxygen (usually 0.3-0.5mg/L) to achieve short-cut nitrification/denitrification and denitrification, and high sludge concentration (usually 5-8g/L) ensures treatment Efficient, continuous and stable, the biological multiplication process has high-efficiency biological denitrification and good phosphorus removal effects, and has a small maintenance workload, a small footprint, and low investment and operating costs.
  • the biological multiplication process in the prior art has a poor effect on advanced sewage treatment.
  • the fluidized bed process refers to the use of sand (or anthracite, activated carbon, etc.) as a filler and as a biofilm carrier in order to improve the treatment efficiency of the biofilm process.
  • Wastewater flows through the sand bed from bottom to top to make the carrier layer in a fluid state.
  • the biological fluidized bed process has high efficiency, small area, and low investment. In the United States, Japan and other countries, it has been used for advanced treatment such as sewage nitrification and denitrification, as well as secondary sewage treatment and other industrial wastewater treatments containing phenol and pharmaceuticals.
  • the yield of the target product of the fluidized bed process is low; the reaction conversion rate is low; the empirical operation is highly random.
  • the objective of the present invention is to provide an integrated sewage treatment tank applying biological multiplication and fluidized bed technology in view of the deficiencies of the prior art.
  • the innovation of the present invention is that the biological multiplication process and the fluidized bed process are organically combined in the present invention, which is highly efficient and stable, has a good sewage treatment effect and a small area.
  • an integrated integrated sewage treatment tank using biological multiplication and fluidized bed technology including a tank body, and a partition board is arranged in the tank body to protect the tank
  • the body is divided into anaerobic zone, anoxic zone, aerobic zone, and precipitation zone in turn.
  • the bulkhead is provided with water passing holes, and the tank body is also provided with water inlets and water outlets. The water inlets are arranged at the anaerobic zone.
  • the water outlet is set at the sedimentation zone, the aerobic zone flows back to the anaerobic zone through the sludge return pipeline, the sedimentation zone is provided with an inclined pipe, the inclined pipe is divided into two upper and lower layers, the diameter of the lower inclined pipe is larger than the upper inclined pipe Diameter of the pipe; fillers are provided in the anaerobic zone, anoxic zone and aerobic zone.
  • the anaerobic zone, anoxic zone, aerobic zone, precipitation zone, and membrane filtration zone are all equipped with aeration devices, and the anaerobic zone, anoxic zone, aerobic zone, precipitation zone, membrane filtration zone
  • the dissolved oxygen concentration in the zone is ⁇ 0.5mg/L.
  • the oxygen supply rate in the anaerobic zone is similar to the oxygen supply rate in the aerobic zone to ensure the nitration reaction of the mixed liquid.
  • denitrifying bacteria can use nitrate as an electron acceptor for denitrification.
  • the reaction process of nitrogen in the middle circle is a simultaneous nitrification and denitrification process.
  • the aeration device is a perforated aeration device or a microporous aeration device, and the aeration device adopts intermittent aeration. Effectively control the concentration of dissolved oxygen sludge, so that short-cut nitrification and denitrification can be realized smoothly, saving energy and reducing system residence time.
  • the end of the sludge return pipe located in the aerobic zone is a bell mouth. Increase the return flow and realize the large-scale cyclic dilution technology. Part of the filler in the aerobic zone can be brought into the backflow, so that the concentration of pollutants in the influent water is rapidly reduced, effectively avoiding the impact of microorganisms, and providing a stable water body for microorganism growth surroundings.
  • the filler is one or more of MBBR biological filler, powder activated carbon filler or PVC filler.
  • One or more fillers are used inside the tank.
  • the fillers are small in volume and large in quantity. These fillers are suspended in the flowing sewage to form a fluidized bed, which effectively increases the load-bearing capacity of the tank, and increases the filler with the sewage per unit time.
  • the contact area and sufficient oxygen supply can improve the efficiency of biofilm production by the filler and prevent the biofilm from falling off.
  • the tank body has a plate structure or a hollow ribbed structure.
  • the hollow ribbed structure is adopted to increase the strength of the tank body and effectively increase the thickness of the tank body.
  • the thickness of the tank body can generally reach 8-12cm, far exceeding the integrated sewage treatment tank under the existing technology. It has light weight, high strength, heat insulation and noise prevention , Corrosion resistance, long service life and other advantages.
  • the hollow ribbed structure is formed by extrusion + shaping + mechanical winding process, which has the characteristics of corrosion resistance, high strength, heat preservation and noise prevention, energy saving and environmental protection.
  • the heads at both ends of the tank body are flat-shaped heads or arc-shaped heads.
  • the air inlet pipe and a main aeration pipe also includes an air inlet pipe and a main aeration pipe; one end of the air inlet pipe is connected to the main aeration pipe, and the other end is connected with a fan.
  • the aeration device is connected to the main aeration pipe; and the sludge return pipe located in the aerobic zone is also provided There is an air stripping pipe, one end of the air stripping pipe is connected with the sludge return pipe, and the other end is connected with the intake pipe.
  • the fan in the aeration device in the existing device is used for air stripping and recirculation, which is dual-purpose, energy-saving and environmentally friendly, and effectively reduces equipment operating costs.
  • a submersible sewage pump is provided in the aerobic zone, and the submersible sewage pump is in communication with the end of the sludge return pipeline.
  • the present invention has the following advantages:
  • the biological multiplication process and the fluidized bed process are organically combined, which is highly efficient and stable, has a good sewage treatment effect and a small area; the principle of "shallow sedimentation” is used to shorten the particle sedimentation distance, thereby shortening the sedimentation time.
  • the sedimentation area of the sedimentation tank is increased, thereby improving the treatment efficiency; by setting the diameter of the lower inclined tube to be larger than the diameter of the upper inclined tube, the treatment effect is better.
  • the oxygen supply rate in the anaerobic zone is similar to the oxygen supply rate in the aerobic zone to ensure the nitrification reaction of the mixed liquid.
  • denitrifying bacteria can use nitrate as an electron acceptor for denitrification.
  • the reaction process of nitrogen in the middle circle is a simultaneous nitrification and denitrification process.
  • a hollow ribbed structure is used to improve the strength of the tank body and effectively increase the thickness of the tank body.
  • the thickness of the tank body can generally reach 8-12cm, which is far beyond the integrated sewage treatment tank under the prior art, and has light weight and strength. It has the advantages of high temperature, heat preservation and noise prevention, corrosion resistance and long service life.
  • FIG. 1 is a schematic diagram of the structure of Embodiment 1.
  • Embodiment 2 is a schematic diagram of the structure of Embodiment 2.
  • an integrated integrated sewage treatment tank using biological multiplication and fluidized bed technology includes a tank body 1.
  • the tank body 1 has a plate structure or a hollow ribbed structure;
  • the head at the end is a flat head or a circular arc head.
  • the tank body 1 is equipped with a compartment plate 2 to divide the tank body 1 into an anaerobic zone 3, anoxic zone 4, aerobic zone 5, and a precipitation zone 6 in sequence.
  • the compartment plate 2 is provided with a water hole 7, and the tank body 1 There are also a water inlet 8 and a water outlet 9 on the upper side.
  • the water inlet 8 is set at the anaerobic zone 3, the water outlet 9 is set at the sedimentation zone 6, and the aerobic zone 5 flows back to the anaerobic zone 3 through the sludge return pipe 10.
  • the end of the sludge return pipe 10 at the aerobic zone 5 is a bell mouth.
  • the sedimentation zone 6 is provided with an inclined tube 11, which is divided into upper and lower layers, the diameter of the lower inclined tube is larger than that of the upper inclined tube; the anaerobic zone 3, anoxic zone 4, and aerobic zone 5 are all equipped with filler 15;
  • the filler 15 is one or more of MBBR biological filler, powder activated carbon filler or PVC filler.
  • the water outlet 9 is located at the membrane filtration zone 12, the membrane filtration zone 12 is equipped with an integrated MBR membrane microdynamic bioreactor 13, the sedimentation zone 6, the bottom of the membrane filtration zone 12 With mud pipeline.
  • the anaerobic zone 3, the anoxic zone 4, the aerobic zone 5, the precipitation zone 6, and the membrane filtration zone 12 are all equipped with an aeration device 14 which is a perforated aeration device or a microporous aeration device.
  • the aeration device adopts intermittent aeration; the dissolved oxygen concentration of anaerobic zone 3, anoxic zone 4, aerobic zone 5, precipitation zone 6, and membrane filtration zone 12 are all ⁇ 0.5mg/L.
  • the tank 1 is provided with an air inlet pipe and an aeration pipe; one end of the air inlet pipe is connected with the aeration main pipe, and the other end is connected with a fan, and the aeration device is connected with the aeration main pipe; the sludge return pipe located in the aerobic zone is also provided There is an air stripping pipe, one end of the air stripping pipe is connected with the sludge return pipe, and the other end is connected with the air inlet pipe.
  • an integrated integrated sewage treatment tank using biological multiplication and fluidized bed technology includes a tank body 1, which has a plate structure or a hollow ribbed structure; The head at the end is a flat head or a circular arc head.
  • the tank body 1 is equipped with a compartment plate 2 to divide the tank body 1 into an anaerobic zone 3, anoxic zone 4, aerobic zone 5, and a precipitation zone 6 in sequence.
  • the compartment plate 2 is provided with a water hole 7, and the tank body 1 There are also a water inlet 8 and a water outlet 9 on the upper side.
  • the water inlet 8 is set at the anaerobic zone 3, the water outlet 9 is set at the sedimentation zone 6, and the aerobic zone 5 flows back to the anaerobic zone 3 through the sludge return pipe 10.
  • the end of the sludge return pipe 10 at the aerobic zone 5 is a bell mouth.
  • the sedimentation zone 6 is provided with an inclined tube 11, which is divided into upper and lower layers, the diameter of the lower inclined tube is larger than that of the upper inclined tube; the anaerobic zone 3, anoxic zone 4, and aerobic zone 5 are all equipped with filler 15;
  • the filler 15 is one or more of MBBR biological filler, powder activated carbon filler or PVC filler.
  • the water outlet 9 is located at the membrane filtration zone 12, the membrane filtration zone 12 is equipped with an integrated MBR membrane microdynamic bioreactor 13, the sedimentation zone 6, the bottom of the membrane filtration zone 12 With mud pipeline.
  • the anaerobic zone 3, the anoxic zone 4, the aerobic zone 5, the precipitation zone 6, and the membrane filtration zone 12 are all equipped with an aeration device 14 which is a perforated aeration device or a microporous aeration device.
  • the aeration device adopts intermittent aeration; the dissolved oxygen concentration of anaerobic zone 3, anoxic zone 4, aerobic zone 5, precipitation zone 6, and membrane filtration zone 12 are all ⁇ 0.5mg/L.
  • a submersible sewage pump 16 is provided in the aerobic zone 5, and the submersible sewage pump 16 is in communication with the end of the sludge return pipe 10.

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  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Biological Treatment Of Waste Water (AREA)
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Abstract

本发明提供了一种应用生物倍增和流化床工艺的集成式一体化污水处理罐，包括罐体，罐体内设有隔舱板将罐体依次分为厌氧区、缺氧区、好氧区、沉淀区，隔舱板开设有过水孔，罐体上还设有进水口和出水口，所述好氧区通过污泥回流管道回流至厌氧区，其特征在于，所述沉淀区内设有斜管，斜管分为上下两层，下层斜管直径大于上层斜管直径；所述厌氧区、缺氧区、好氧区内均设有填料。本发明中将生物倍增工艺和流化床工艺有机结合，高效稳定，污水处理效果好、占地面积小；运用"浅层沉淀"原理，缩短颗粒沉降距离，从而缩短了沉淀时问，并且增加了沉淀池的沉淀面积，从而提高了处理效率；通过下层斜管直径大于上层斜管直径的设置，处理效果更好。

Description

[根据细则26改正25.03.2020]　一种应用生物倍增和流化床工艺的集成式一体化污水处理罐 技术领域
本发明涉及污水处理领域，尤其涉及一种应用生物倍增和流化床工艺的集成式一体化污水处理罐。
 背景技术
生物倍增工艺是德国发明的一种新型污水处理工艺，采用低溶解氧（通常0.3-0.5mg/L）实现短程硝化/反硝化脱氮，高污泥浓度（通常5-8g/L）确保处理高效持续稳定，生物倍增工艺具有高效的生物脱氮和良好的除磷效果，而且维护工作量小，占地面积小，投资、运行成本低。现有技术中的生物倍增工艺深度处理污水效果差。
流化床工艺是指为提高生物膜法的处理效率，以砂（或无烟煤、活性炭等）作填料并作为生物膜载体，废水自下向上流过砂床使载体层呈流动状态，从而在单位时间加大生物膜同废水的接触面积和充分供氧，并利用填料沸腾状态强化废水生物处理过程的构筑物。生物流化床工艺效率高、占地少、投资省，在美、日等国已用于污水硝化、脱氮等深度处理和污水二级处理及其他含酚、制药等工业废水处理。 但流化床工艺目的产物的收率低；反应转化率较低；经验性操作，随意性大。
 技术问题
农村污水具有高磷、高氮、高氨氮和COD等特点，进水水质污染物指标偏高，出水水质要求高，因此，需寻找一种高效稳定，污水处理效果好、占地面积小的设备。
 技术解决方案
发明目的：本发明的目的在于针对现有技术的不足，提供一种应用生物倍增和流化床工艺的集成式一体化污水处理罐。
本发明的创新点在于本发明中将生物倍增工艺和流化床工艺有机结合，高效稳定，污水处理效果好、占地面积小。
技术方案：为了达到上述发明目的，本发明具体是这样来实现的：一种应用生物倍增和流化床工艺的集成式一体化污水处理罐，包括罐体，罐体内设有隔舱板将罐体依次分为厌氧区、缺氧区、好氧区、沉淀区，隔舱板开设有过水孔，罐体上还设有进水口和出水口，所述进水口设置在厌氧区处，出水口设置在沉淀区处，所述好氧区通过污泥回流管道回流至厌氧区，所述沉淀区内设有斜管，斜管分为上下两层，下层斜管直径大于上层斜管直径；所述厌氧区、缺氧区、好氧区内均设有填料。将生物倍增工艺和流化床工艺有机结合，高效稳定，污水处理效果好、占地面积小；运用“浅层沉淀”原理，缩短颗粒沉降距离，从而缩短了沉淀时问，并且增加了沉淀池的沉淀面积，从而提高了处理效率。
进一步地，所述沉淀区后还设有膜过滤区，出水口位于膜过滤区处，过滤区内设有一体化MBR膜微动力生物反应器，所述沉淀区、膜过滤区的底部设有排泥管道。应用中国专利“2018113496018”公开了的“一种一体化MBR膜微动力生物反应器”，具有很好的固液分离过滤效果。通过设置排泥管道，有效防止污泥淤积，造成罐体内部拥堵。
进一步地，所述厌氧区、缺氧区、好氧区、沉淀区、膜过滤区内均设有曝气装置，所述厌氧区、缺氧区、好氧区、沉淀区、膜过滤区的溶解氧浓度均≤0.5mg/L。通过控制曝气强度，使厌氧区的供氧速率与好氧区的供氧速率相近，保证混合液的硝化反应。同时因为溶解氧浓度低，反硝化菌可以利用硝酸盐作为电子受体进行反硝化反应。氮素在中圈的反应过程是一个同步硝化反硝化过程。
进一步地，所述曝气装置为穿孔曝气装置或微孔曝气装置，所述曝气装置采用间歇式曝气。有效控制溶解氧污泥浓度，使得短程硝化反硝化得以顺利实现，节能的同时减少了系统停留时间。
进一步地，所述污泥回流管道位于好氧区处的端部为喇叭口。增加回流量，实现大比倍循环稀释技术，在回流中可带入好氧区的部分填料，使得进水中的污染物浓度迅速降低，有效避免了微生物遭受冲击，为微生物生长提供稳定的水体环境。
进一步地，所述填料为MBBR生物填料、粉末活性炭填料或PVC填料的一种或多种。罐体内部应用一种或多种填料，填料体积小，数量大，这些填料悬浮于流动的污水中，形成流化床，有效增加罐体内部的抗负荷能力，在单位时间加大填料同污水的接触面积和充分供氧，提升填料生产生物膜的效率，并防止生物膜脱落。
进一步地，所述罐体为板式结构或中空加肋结构。采用中空加肋结构，提升罐体强度，有效增加罐体厚度，罐体厚度一般可达8-12cm，远超现有技术下的一体化污水处理罐，具有重量轻、强度高、保温防噪、耐腐蚀、使用寿命长等优越性。中空加肋结构通过挤塑+定型+机械缠绕工艺形成，具有耐腐蚀、强度高、保温防噪、节能环保的特点。
进一步地，所述罐体两端的封头为平板形封头或圆弧形封头。
进一步地，还包括进气管及曝气主管；进气管一端和曝气主管连通，另一端连接有风机，所述曝气装置连接曝气主管；位于好氧区内的污泥回流管道上还设有气提管，气提管一端和污泥回流管道连通，另一端和进气管连通。利用现有装置中曝气装置中的风机进行气提回流，一物两用，节能环保，有效降低了设备的运行费用。
进一步地，所述好氧区内设有潜污泵，潜污泵和污泥回流管道的端部连通。
 有益效果
与传统技术相比，本发明具有如下优点：
1、本发明中将生物倍增工艺和流化床工艺有机结合，高效稳定，污水处理效果好、占地面积小；运用“浅层沉淀”原理，缩短颗粒沉降距离，从而缩短了沉淀时问，并且增加了沉淀池的沉淀面积，从而提高了处理效率；通过下层斜管直径大于上层斜管直径的设置，处理效果更好。
2、本发明中通过控制曝气强度，使厌氧区的供氧速率与好氧区的供氧速率相近，保证混合液的硝化反应。同时因为溶解氧浓度低，反硝化菌可以利用硝酸盐作为电子受体进行反硝化反应。氮素在中圈的反应过程是一个同步硝化反硝化过程。
3、本发明中采用中空加肋结构，提升罐体强度，有效增加罐体厚度，罐体厚度一般可达8-12cm，远超现有技术下的一体化污水处理罐，具有重量轻、强度高、保温防噪、耐腐蚀、使用寿命长等优越性。
 附图说明
图1为实施例1的结构示意图。
图2为实施例2的结构示意图。
 本发明的最佳实施方式
实施例1：如图1所示，一种应用生物倍增和流化床工艺的集成式一体化污水处理罐，包括罐体1，罐体1为板式结构或中空加肋结构；罐体1两端的封头为平板形封头或圆弧形封头。罐体1内设有隔舱板2将罐体1依次分为厌氧区3、缺氧区4、好氧区5、沉淀区6，隔舱板2开设有过水孔7，罐体1上还设有进水口8和出水口9，进水口8设置在厌氧区3处，出水口9设置在沉淀区6处，好氧区5通过污泥回流管道10回流至厌氧区3，污泥回流管道10位于好氧区5处的端部为喇叭口。沉淀区6内设有斜管11，斜管11分为上下两层，下层斜管直径大于上层斜管直径；厌氧区3、缺氧区4、好氧区5内均设有填料15；填料15为MBBR生物填料、粉末活性炭填料或PVC填料中的一种或多种。沉淀区6后还设有膜过滤区12，出水口9位于膜过滤区12处，膜过滤区12内设有一体化MBR膜微动力生物反应器13，沉淀区6、膜过滤区12的底部设有排泥管道。厌氧区3、缺氧区4、好氧区5、沉淀区6、膜过滤区12内均设有曝气装置14，曝气装置14为穿孔曝气装置或微孔曝气装置，所述曝气装置采用间歇式曝气；厌氧区3、缺氧区4、好氧区5、沉淀区6、膜过滤区12的溶解氧浓度均≤0.5mg/L。
罐体1设有进气管及曝气管；进气管一端和曝气主管连通，另一端连接有风机，所述曝气装置连接曝气主管；位于好氧区内的污泥回流管道上还设有气提管，气提管一端和污泥回流管道连通，另一端和进气管连通。
实施例2：如图2所示，一种应用生物倍增和流化床工艺的集成式一体化污水处理罐，包括罐体1，罐体1为板式结构或中空加肋结构；罐体1两端的封头为平板形封头或圆弧形封头。罐体1内设有隔舱板2将罐体1依次分为厌氧区3、缺氧区4、好氧区5、沉淀区6，隔舱板2开设有过水孔7，罐体1上还设有进水口8和出水口9，进水口8设置在厌氧区3处，出水口9设置在沉淀区6处，好氧区5通过污泥回流管道10回流至厌氧区3，污泥回流管道10位于好氧区5处的端部为喇叭口。沉淀区6内设有斜管11，斜管11分为上下两层，下层斜管直径大于上层斜管直径；厌氧区3、缺氧区4、好氧区5内均设有填料15；填料15为MBBR生物填料、粉末活性炭填料或PVC填料中的一种或多种。沉淀区6后还设有膜过滤区12，出水口9位于膜过滤区12处，膜过滤区12内设有一体化MBR膜微动力生物反应器13，沉淀区6、膜过滤区12的底部设有排泥管道。厌氧区3、缺氧区4、好氧区5、沉淀区6、膜过滤区12内均设有曝气装置14，曝气装置14为穿孔曝气装置或微孔曝气装置，所述曝气装置采用间歇式曝气；厌氧区3、缺氧区4、好氧区5、沉淀区6、膜过滤区12的溶解氧浓度均≤0.5mg/L。好氧区5内设有潜污泵16，潜污泵16和污泥回流管道10的端部连通。

Claims (10)

  1. 一种应用生物倍增和流化床工艺的集成式一体化污水处理罐，包括罐体，罐体内设有隔舱板将罐体依次分为厌氧区、缺氧区、好氧区、沉淀区，隔舱板开设有过水孔，罐体上还设有进水口和出水口，所述进水口设置在厌氧区处，出水口设置在沉淀区处，所述好氧区通过污泥回流管道回流至厌氧区，其特征在于，所述沉淀区内设有斜管，斜管分为上下两层，下层斜管直径大于上层斜管直径；所述厌氧区、缺氧区、好氧区内均设有填料。
  2. 根据权利要求1所述的应用生物倍增和流化床工艺的集成式一体化污水处理罐，其特征在于，所述沉淀区后还设有膜过滤区，出水口位于膜过滤区处，膜过滤区内设有一体化MBR膜微动力生物反应器，所述沉淀区、膜过滤区的底部设有排泥管道。
  3. 根据权利要求2所述的应用生物倍增和流化床工艺的集成式一体化污水处理罐，其特征在于，所述厌氧区、缺氧区、好氧区、沉淀区、膜过滤区内均设有曝气装置，所述厌氧区、缺氧区、好氧区、沉淀区、膜过滤区的溶解氧浓度均≤0.5mg/L。
  4. 根据权利要求3所述的应用生物倍增和流化床工艺的集成式一体化污水处理罐，其特征在于，所述曝气装置为穿孔曝气装置或微孔曝气装置，所述曝气装置采用间歇式曝气。
  5. 根据权利要求1所述的应用生物倍增和流化床工艺的集成式一体化污水处理罐，其特征在于，所述污泥回流管道位于好氧区处的端部为喇叭口。
  6. 根据权利要求1所述的应用生物倍增和流化床工艺的集成式一体化污水处理罐，其特征在于，所述填料为MBBR生物填料、粉末活性炭填料或PVC填料中的一种或多种。
  7. 根据权利要求1所述的应用生物倍增和流化床工艺的集成式一体化污水处理罐，其特征在于，所述罐体为板式结构或中空加肋结构。
  8. 根据权利要求1所述的应用生物倍增和流化床工艺的集成式一体化污水处理罐，其特征在于，所述罐体两端的封头为平板形封头或圆弧形封头。
  9. 根据权利要求3所述的应用生物倍增和流化床工艺的集成式一体化污水处理罐，其特征在于，还包括进气管及曝气主管；进气管一端和曝气主管连通，另一端连接有风机，所述曝气装置连接曝气主管；位于好氧区内的污泥回流管道上还设有气提管，气提管一端和污泥回流管道连通，另一端和进气管连通。
  10. 根据权利要求1所述的应用生物倍增和流化床工艺的集成式一体化污水处理罐，其特征在于，所述好氧区内设有潜污泵，潜污泵和污泥回流管道的端部连通。
     
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