CN108483651A - The modified form multi-mode operation A adjusted based on water quality and quantity2O reaction tanks and sewage disposal system - Google Patents

The modified form multi-mode operation A adjusted based on water quality and quantity2O reaction tanks and sewage disposal system Download PDF

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CN108483651A
CN108483651A CN201810524491.8A CN201810524491A CN108483651A CN 108483651 A CN108483651 A CN 108483651A CN 201810524491 A CN201810524491 A CN 201810524491A CN 108483651 A CN108483651 A CN 108483651A
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pipeline
water inlet
water
pond
pool
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申屠华斌
陈洪兵
毛燕芳
江伟
印飞
黄雅芳
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Shanghai Water Engineering Design and Research Institute Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/30Aerobic and anaerobic processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/30Aerobic and anaerobic processes
    • C02F3/308Biological phosphorus removal
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F2001/007Processes including a sedimentation step
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/16Nitrogen compounds, e.g. ammonia
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/04Disinfection

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  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Microbiology (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

本发明公开的一种基于水质水量调节的改良型多模式运行A2O反应池,包括:依次通过管道连接的前置缺氧池、厌氧池、缺氧池、好氧池和沉淀池;一安装在所述进水管道上的用于监测进水水量的电磁流量计;一安装在所述进水管道上的水质监测装置;若干安装在反应池各处的电动截止阀;以及一PLC控制系统,所述PLC控制系统分别与所述电磁流量计、水质监测装置和若干电动截止阀连接。本发明还公开了一种包括上述改良型多模式运行A2O反应池污水处理系统。本发明的多模式运行A2O反应池可根据进水水质和/或进水水量的变化自动切换运行模式,充分发挥了厌氧、缺氧这两个独立池的最大功效,以实现对污水进行生物脱氮和生物除磷。

An improved multi-mode operation A2O reaction pool based on water quality and water quantity adjustment disclosed by the present invention includes: a pre-anoxic pool, an anaerobic pool, anoxic pool, an aerobic pool and a sedimentation pool connected sequentially through pipelines; An electromagnetic flowmeter installed on the water inlet pipeline for monitoring the amount of water inflow; a water quality monitoring device installed on the water inlet pipeline; a number of electric shut-off valves installed in various parts of the reaction pool; and a PLC A control system, the PLC control system is respectively connected with the electromagnetic flowmeter, the water quality monitoring device and several electric shut-off valves. The invention also discloses a sewage treatment system comprising the above-mentioned improved multi-mode operation A2O reaction pool. The multi-mode operation A 2 O reaction pool of the present invention can automatically switch the operation mode according to the change of the influent water quality and/or influent water volume, and fully exert the maximum effect of the two independent pools of anaerobic and anoxic to realize the treatment of sewage Carry out biological denitrification and biological phosphorus removal.

Description

基于水质水量调节的改良型多模式运行A2O反应池及污水处理 系统Improved multi-mode operation A2O reaction pool and sewage treatment based on water quality and quantity adjustment system

技术领域technical field

本发明涉及污水处理系统技术领域,尤其涉及一种基于水质水量调节的改良型多模式运行A2O反应池及污水处理系统。The invention relates to the technical field of sewage treatment systems, in particular to an improved multi-mode operation A2O reaction pool and a sewage treatment system based on water quality and quantity regulation.

背景技术Background technique

随着经济的快速发展,水环境污染和水体富营养化问题日益严重,各国对污水氮磷排放标准也在不断提高。因此,研究发开高效、经济性好的污水除磷脱氮工艺已成为当前污水控制领域的研究重点和热点。With the rapid development of the economy, the problems of water pollution and eutrophication are becoming more and more serious, and the discharge standards of sewage nitrogen and phosphorus in various countries are also constantly improving. Therefore, the research and development of highly efficient and economical sewage phosphorus and nitrogen removal process has become the research focus and hotspot in the field of sewage control.

污水生物处理是城市污水的主要处理方法,生化处理根据微生物在处理构筑物中的存在状态,可以分为生物膜法和活性污泥法。其中,应用于城市污水处理厂的固着型生物膜法工艺主要包括BAF生物滤池、生物接触氧化、生物转盘以及生物流化床。活性污泥法是应用最为广泛的污水处理技术,在处理有机废水方面具有处理效果好、出水水质稳定、运转经验丰富、成本低廉等优点,在国内外的城市污水处理厂中被普遍采用。Sewage biological treatment is the main treatment method of urban sewage. Biochemical treatment can be divided into biofilm method and activated sludge method according to the existing state of microorganisms in the treatment structure. Among them, the fixed biofilm process applied to urban sewage treatment plants mainly includes BAF biological filter, biological contact oxidation, biological turntable and biological fluidized bed. Activated sludge method is the most widely used sewage treatment technology. It has the advantages of good treatment effect, stable effluent quality, rich operation experience and low cost in treating organic wastewater. It is widely used in urban sewage treatment plants at home and abroad.

近年来,随着污水处理技术的发展,活性污泥法的形式已由过去的传统型发展为多种改良型,但所有的生物除磷脱氮工艺都包含厌氧、缺氧、好氧三个不同过程的交替循环。其中用得比较广泛、较为成熟的方式有传统的活性污泥法、A/O法、A/A/O法(包括Bardenpho、普通A2O、改良A2O、UCT、MUCT、VIP、倒置A2O工艺、多点进出水倒置A2O工艺等)、A-B法、氧化沟法、SBR法、膜生物反应器技术(MBR)等。但是,基于在不同季节时期污水的进水量和水质有所差别,现有的A2O反应池由于单一运行模式在进水水质和/或进水水量变化时无法对水体中的总氮和/或总磷处理达到标准。为此,申请人进行了有益的探索和尝试,找到了解决上述问题的办法,下面将要介绍的技术方案便是在这种背景下产生的。In recent years, with the development of sewage treatment technology, the form of activated sludge process has developed from the traditional type to a variety of improved types, but all biological phosphorus and nitrogen removal processes include anaerobic, anoxic, and aerobic processes. alternating cycles of different processes. Among them, the more widely used and more mature methods include traditional activated sludge method, A/O method, A/A/O method (including Bardenpho, ordinary A 2 O, improved A 2 O, UCT, MUCT, VIP, inverted A 2 O process, multi-point water inversion A 2 O process, etc.), AB method, oxidation ditch method, SBR method, membrane bioreactor technology (MBR), etc. However, due to the differences in the inflow and water quality of sewage in different seasons, the existing A 2 O reaction tank cannot control the total nitrogen and/or total nitrogen in the water body due to the single operation mode when the influent water quality and/or influent water quantity change Or the total phosphorus treatment reaches the standard. For this reason, the applicant has conducted useful explorations and attempts, and has found a solution to the above-mentioned problems, and the technical solutions to be introduced below are produced under this background.

发明内容Contents of the invention

本发明所要解决的技术问题之一在于:针对现有的A2O反应池因单一运行模式在进水水质和/或进水水量变化时无法对水体中的总氮和/或总磷处理达到标准的问题,而提供一种可根据进水水质和/或进水水量的变化调整运行模式为脱离除磷提供保障的基于水质水量调节的改良型多模式运行A2O反应池。One of the technical problems to be solved by the present invention is: the existing A 2 O reaction pool cannot treat the total nitrogen and/or total phosphorus in the water body due to the single operation mode when the influent water quality and/or influent water volume change In view of the standard problem, an improved multi-mode operation A 2 O reaction pool based on water quality and water volume regulation can be provided to provide a guarantee for dephosphorization by adjusting the operation mode according to the change of influent water quality and/or influent water volume.

本发明所要解决的技术问题之二在于:提供一种包括上述基于水质水量调节的改良型多模式运行A2O反应池的污水处理系统。The second technical problem to be solved by the present invention is to provide a sewage treatment system including the above-mentioned improved multi-mode operation A 2 O reaction pool based on water quality and water volume regulation.

作为本发明第一方面的一种基于水质水量调节的改良型多模式运行A2O反应池,包括:As the first aspect of the present invention, an improved multi-mode operation A2O reaction pool based on water quality and water volume regulation includes:

依次通过管道连接的前置缺氧池、厌氧池、缺氧池、好氧池和沉淀池;Pre-anoxic tank, anaerobic tank, anoxic tank, aerobic tank and sedimentation tank connected by pipelines in sequence;

一进水管道,所述进水管道的一端为进水端,其另一端与所述前置缺氧池的进水端连接;A water inlet pipe, one end of the water inlet pipe is the water inlet end, and the other end is connected to the water inlet end of the pre-anoxic tank;

一安装在所述进水管道上的用于监测进水水量的电磁流量计;An electromagnetic flowmeter installed on the water inlet pipeline for monitoring the amount of water inlet;

一安装在所述进水管道上的用于监测进水的COD、BOD、氨氮和总磷含量的水质监测装置;A water quality monitoring device installed on the water inlet pipeline for monitoring the COD, BOD, ammonia nitrogen and total phosphorus content of the incoming water;

一安装在所述进水管道上的第一电动截止阀;A first electric shut-off valve installed on the water inlet pipeline;

一过渡管道,所述过渡管道的一端并接在所述进水管道上且位于所述第一电动截止阀的进水端的前方,其另一端与所述厌氧池连接;A transition pipeline, one end of the transition pipeline is connected to the water inlet pipeline and is located in front of the water inlet end of the first electric shut-off valve, and the other end is connected to the anaerobic tank;

一安装在所述过渡管道上的第二电动截止阀;a second electric shut-off valve installed on the transition pipeline;

一第一混合液回流管道,所述第一混合液回流管道的一端并接在所述好氧池与沉淀池之间的管道上,其另一端并接在所述厌氧池与缺氧池之间的管道上;A first mixed liquid return pipeline, one end of the first mixed liquid return pipeline is connected to the pipeline between the aerobic tank and the sedimentation tank, and the other end is connected to the anaerobic tank and the anoxic tank on the pipeline;

一安装在所述第一混合液回流管道上的第三电动截止阀;A third electric stop valve installed on the first mixed liquid return pipeline;

一第二混合液回流管道,所述第二混合液回流管道的一端并接在所述好氧池与沉淀池之间的管道上,其另一端并接在所述前置缺氧池与厌氧池之间的管道上;A second mixed liquid return pipeline, one end of the second mixed liquid return pipeline is connected to the pipeline between the aerobic tank and the sedimentation tank, and the other end is connected to the pre-anoxic tank and the anaerobic tank. on pipes between pools;

一安装在所述第二混合液回流管道上的第四电动截止阀;A fourth electric shut-off valve installed on the second mixed liquid return pipeline;

一第三混合液回流管道,所述第三混合液回流管道的一端并接在所述好氧池与沉淀池之间的管道上,其另一端与所述前置缺氧池连接;A third mixed liquid return pipeline, one end of the third mixed liquid return pipeline is connected to the pipeline between the aerobic tank and the sedimentation tank, and the other end is connected to the pre-anoxic tank;

一安装在所述第三混合液回流管道上的第五电动截止阀;A fifth electric stop valve installed on the third mixed liquid return pipeline;

一第一污泥回流管道,所述第一污泥回流管道的一端与所述沉淀池的污泥出口连接,其另一端与所述前置缺氧池连接;A first sludge return pipeline, one end of the first sludge return pipeline is connected to the sludge outlet of the sedimentation tank, and the other end is connected to the pre-anoxic tank;

一安装在所述第一污泥回流管道上的第六电动截止阀;A sixth electric shut-off valve installed on the first sludge return pipeline;

一第二污泥回流管道,所述第二污泥回流管道的一端与所述沉淀池的污泥出口连接,其另一端与所述厌氧池连接;A second sludge return pipeline, one end of the second sludge return pipeline is connected to the sludge outlet of the sedimentation tank, and the other end is connected to the anaerobic tank;

一安装在所述第二污泥回流管道上的第七电动截止阀;以及a seventh electric shut-off valve installed on the second sludge return pipeline; and

一PLC控制系统,所述PLC控制系统分别与所述电磁流量计、水质监测装置和第一、第二、第三、第四、第五、第六、第七电动截止阀连接。A PLC control system, the PLC control system is respectively connected with the electromagnetic flowmeter, the water quality monitoring device and the first, second, third, fourth, fifth, sixth and seventh electric stop valves.

作为本发明第二方面的一种污水处理系统,包括依次连接的粗格栅进水泵房、细格栅旋流沉砂池、A2O反应池、二沉池、提升泵房、絮凝沉淀池、滤布滤池以及消毒氧化池,其特征在于,所述A2O反应池为上述的基于水质水量调节的改良型多模式运行A2O反应池。As a sewage treatment system according to the second aspect of the present invention, it includes a coarse grid inlet pump room, a fine grid swirl grit chamber, an A2O reaction tank, a secondary sedimentation tank, a lifting pump room, and a flocculation sedimentation tank connected in sequence . A filter cloth filter and a disinfection and oxidation tank, wherein the A 2 O reaction tank is the above-mentioned improved multi-mode operation A 2 O reaction tank based on water quality and water quantity regulation.

在本发明的一个优选实施例中,在所述细格栅旋流沉淀池与絮凝沉淀池之间设置有一溢流雨水管。In a preferred embodiment of the present invention, an overflow rainwater pipe is arranged between the fine grid cyclone sedimentation tank and the flocculation sedimentation tank.

由于采用了如上的技术方案,本发明的有益效果在于:本发明的多模式运行A2O反应池可根据进水水质和/或进水水量的变化自动切换运行模式,充分发挥了厌氧、缺氧这两个独立池的最大功效,以实现对污水进行生物脱氮和生物除磷。Due to the adoption of the above technical scheme, the beneficial effect of the present invention is that: the multi-mode operation A2O reaction tank of the present invention can automatically switch operation modes according to the change of influent water quality and/or influent water volume, and fully utilizes anaerobic, The maximum efficiency of the two independent pools of hypoxia is used to realize the biological denitrification and biological phosphorus removal of sewage.

附图说明Description of drawings

为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

图1是本发明的污水处理系统的结构示意图。Fig. 1 is a structural schematic diagram of the sewage treatment system of the present invention.

图2是本发明的改良型多模式运行A2O反应池的结构示意图。Fig. 2 is a structural schematic diagram of the improved multi-mode operation A 2 O reaction cell of the present invention.

图3是本发明的改良型多模式运行A2O反应池处于常规型A2O运行模式的示意图。Fig. 3 is a schematic diagram of the improved multi-mode operation A 2 O reaction cell of the present invention in the conventional A 2 O operation mode.

图4是本发明的改良型多模式运行A2O反应池处于改良型A2O运行模式的示意图。Fig. 4 is a schematic diagram of the improved multi-mode operation A 2 O reaction cell of the present invention in the improved A 2 O operation mode.

图5是本发明的改良型多模式运行A2O反应池处于倒置型A2O运行模式的示意图。Fig. 5 is a schematic diagram of the improved multi-mode operation A 2 O reaction cell of the present invention in an inverted A 2 O operation mode.

具体实施方式Detailed ways

为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解,下面结合具体图示,进一步阐述本发明。In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

参见图1,图中给出的是一种污水处理系统,包括依次连接的粗格栅进水泵房100、细格栅旋流沉砂池200、改良型多模式运行A2O反应池300、二沉池400、提升泵房500、絮凝沉淀池600、滤布滤池700以及消毒氧化池800。其中,滤布滤池700优选地为纤维滤布滤池,消毒氧化池800优选地为紫外消毒氧化池。Referring to Fig. 1, a sewage treatment system is shown in the figure, including a coarse-grid inlet pump house 100, a fine-grid cyclone grit chamber 200, an improved multi-mode operation A2O reaction tank 300, Secondary sedimentation tank 400, lifting pump room 500, flocculation sedimentation tank 600, filter cloth filter tank 700 and disinfection and oxidation tank 800. Wherein, the filter cloth filter 700 is preferably a fiber filter cloth filter, and the disinfection and oxidation tank 800 is preferably an ultraviolet disinfection and oxidation tank.

在细格栅旋流沉砂池200与絮凝沉淀池600之间设置有一溢流雨水管900,这样细格栅旋流沉砂池200在暴雨时期水量较多时可通过溢流雨水管900溢流至絮凝沉淀池600中。An overflow rainwater pipe 900 is arranged between the fine grid cyclone grit chamber 200 and the flocculation sedimentation tank 600, so that the fine grid cyclone grit chamber 200 can overflow to the flocculation through the overflow rainwater pipe 900 when there is a large amount of water in the rainstorm period. Sedimentation tank 600.

改良型多模式运行A2O反应池300,包括前置缺氧池301、厌氧池302、缺氧池303、好氧池304、沉淀池305、进水管道306、电磁流量计307、水质监测装置308、过渡管道309、混合液回流管道310、311、312、污泥回流管道313、314、电动截止阀315、316、317、318、319、320、321以及PLC控制系统。Improved multi-mode operation A 2 O reaction pool 300, including pre-anoxic pool 301, anaerobic pool 302, anoxic pool 303, aerobic pool 304, sedimentation pool 305, water inlet pipe 306, electromagnetic flowmeter 307, water quality Monitoring device 308, transition pipeline 309, mixed liquid return pipeline 310, 311, 312, sludge return pipeline 313, 314, electric stop valve 315, 316, 317, 318, 319, 320, 321 and PLC control system.

前置缺氧池301、厌氧池302、缺氧池303、好氧池304和沉淀池305依次通过管道进行连接,沉淀池305的出水端通过管道与二沉池400的进水端连接。进水管道306的一端为进水端并与细格栅旋流沉砂池200的出水端连接,其另一端与前置缺氧池301的进水端连接。电磁流量计307安装在进水管道306上,其用于监测改良型多模式运行A2O反应池300的进水水量。水质监测装置308安装在进水管道306上且位于电磁流量计307的后方,其用于监测进水的COD、BOD、氨氮和总磷含量。电动截止阀315安装在进水管道306上且位于水质监测装置308的后方。过渡管道309的一端并接在进水管道306上且位于电动截止阀315的进水端的前方,其另一端与厌氧池302连接。电动截止阀316安装在过渡管道309上。混合液回流管道310的一端并接在好氧池304与沉淀池305之间的管道上,其另一端并接在厌氧池302与缺氧池303之间的管道上。电动截止阀317安装在混合液回流管道310上。混合液回流管道311的一端并接在好氧池304与沉淀池305之间的管道上,其另一端并接在前置缺氧池301与厌氧池302之间的管道上。电动截止阀318安装在混合液回流管道311上。混合液回流管道312的一端并接在好氧池304与沉淀池305之间的管道上,其另一端与前置缺氧池301连接。电动截止阀319安装在混合液回流管道312上。污泥回流管道313的一端与沉淀池305的污泥出口连接,其另一端与前置缺氧池301连接。电动截止阀320安装在污泥回流管道313上。污泥回流管道314的一端与沉淀池305的污泥出口连接,其另一端与厌氧池302连接。电动截止阀321安装在污泥回流管道314上。PLC控制系统分别与电磁流量计307、水质监测装置308和电动截止阀315、316、317、318、319、320、321连接。Pre-anoxic tank 301, anaerobic tank 302, anoxic tank 303, aerobic tank 304 and sedimentation tank 305 are connected through pipelines in sequence, and the water outlet of sedimentation tank 305 is connected with the water inlet of secondary sedimentation tank 400 through pipelines. One end of the water inlet pipe 306 is the water inlet end and is connected with the water outlet end of the fine grid cyclone grit chamber 200 , and the other end is connected with the water inlet end of the pre-anoxic tank 301 . The electromagnetic flowmeter 307 is installed on the water inlet pipe 306 , which is used to monitor the water inlet volume of the improved multi-mode operation A 2 O reaction pool 300 . The water quality monitoring device 308 is installed on the water inlet pipeline 306 and behind the electromagnetic flowmeter 307, and it is used to monitor the COD, BOD, ammonia nitrogen and total phosphorus content of the water inlet. The electric stop valve 315 is installed on the water inlet pipe 306 and is located behind the water quality monitoring device 308 . One end of the transition pipeline 309 is connected to the water inlet pipeline 306 and is located in front of the water inlet end of the electric shut-off valve 315 , and the other end is connected to the anaerobic tank 302 . The electric stop valve 316 is installed on the transition pipe 309 . One end of the mixed liquid return pipeline 310 is connected to the pipeline between the aerobic tank 304 and the sedimentation tank 305 , and the other end is connected to the pipeline between the anaerobic tank 302 and the anoxic tank 303 . The electric cut-off valve 317 is installed on the mixed liquid return pipeline 310 . One end of the mixed liquid return pipeline 311 is connected to the pipeline between the aerobic tank 304 and the sedimentation tank 305 , and the other end is connected to the pipeline between the pre-anoxic tank 301 and the anaerobic tank 302 . The electric stop valve 318 is installed on the mixed liquid return pipeline 311 . One end of the mixed liquid return pipeline 312 is connected to the pipeline between the aerobic tank 304 and the sedimentation tank 305 , and the other end is connected to the pre-anoxic tank 301 . The electric cut-off valve 319 is installed on the mixed liquid return pipeline 312 . One end of the sludge return pipe 313 is connected to the sludge outlet of the sedimentation tank 305 , and the other end is connected to the pre-anoxic tank 301 . The electric stop valve 320 is installed on the sludge return pipeline 313 . One end of the sludge return pipe 314 is connected to the sludge outlet of the sedimentation tank 305 , and the other end is connected to the anaerobic tank 302 . The electric stop valve 321 is installed on the sludge return pipeline 314 . The PLC control system is respectively connected with the electromagnetic flowmeter 307, the water quality monitoring device 308 and the electric stop valves 315, 316, 317, 318, 319, 320, 321.

市政污水管道输送过过来的污水首先进入粗格栅进水泵房100,以除去污水中较大的漂浮物,污水提升至细格栅旋流沉砂池200,进一步除去污水中的漂浮物以及比重大于2.65且粒径大于0.2mm的砂粒,污水继而进入改良型多模式运行A2O反应池300,电磁流量计307和水质监测装置308分别监测污水的进水水量和进水水质,并根据当前的进水水量和/或进水水质来调整改良型多模式运行A2O反应池300的运行模式,之后污水依次进入二沉池400、提升泵房500、絮凝沉淀池600、滤布滤池700以及消毒氧化池800,最后处理后的污水排入河道系统。The sewage transported by the municipal sewage pipeline first enters the coarse grid inlet pump room 100 to remove larger floating objects in the sewage, and the sewage is lifted to the fine grid cyclone grit chamber 200 to further remove the floating objects and specific gravity in the sewage For sand particles greater than 2.65 and particle size greater than 0.2mm, the sewage then enters the improved multi-mode operation A2O reaction pool 300, the electromagnetic flowmeter 307 and the water quality monitoring device 308 monitor the influent water quantity and influent water quality of the sewage respectively, and according to the current The influent water volume and/or influent water quality are used to adjust the operation mode of the improved multi-mode operation A 2 O reaction tank 300, and then the sewage enters the secondary sedimentation tank 400, the lifting pump room 500, the flocculation sedimentation tank 600, and the filter cloth filter in sequence 700 and the disinfection and oxidation pool 800, and finally the treated sewage is discharged into the river system.

改良型多模式运行A2O反应池300具有三种运行模式,分别为常规型A2O运行模式、改良型A2O运行模式和倒置型A2O运行模式。当需要切换至常规型A2O运行模式时,将电动截止阀315、318、319、320关闭,简化后的示意图如图3所示;当需要切换至改良型A2O运行模式时,将电动截止阀318、319、321关闭,简化后的示意图如图4所示;当需要切换至倒置型A2O运行模式时,将电动截止阀315、317、318、321关闭,简化后的示意图如图5所示。The improved multi-mode operation A 2 O reaction cell 300 has three operation modes, which are conventional A 2 O operation mode, improved A 2 O operation mode and inverted A 2 O operation mode. When it is necessary to switch to the conventional A2O operation mode, the electric shut-off valves 315, 318, 319, 320 are closed, and the simplified schematic diagram is shown in Figure 3; when it is necessary to switch to the improved A2O operation mode, the The electric shut-off valves 318, 319, 321 are closed, the simplified schematic diagram is shown in Figure 4; when it is necessary to switch to the inverted A2O operation mode, the electric shut-off valves 315, 317, 318, 321 are closed, the simplified schematic diagram As shown in Figure 5.

表1为未经过处理的污水水质,表2为经过本发明污水处理系统处理得到的清水水质,出水水质满足国家一级A标准。Table 1 shows the quality of untreated sewage, and Table 2 shows the quality of clear water obtained through the sewage treatment system of the present invention. The effluent quality meets the national first-class A standard.

表1进水水质Table 1 Influent water quality

表2出水水质Table 2 Effluent water quality

以上显示和描述了本发明的基本原理和主要特征和本发明的优点。本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是说明本发明的原理,在不脱离本发明精神和范围的前提下,本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments, and what described in the above-mentioned embodiments and the description only illustrates the principles of the present invention, and the present invention will also have other functions without departing from the spirit and scope of the present invention. Variations and improvements are possible, which fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (3)

1. a kind of modified form multi-mode operation A adjusted based on water quality and quantity2O reaction tanks, which is characterized in that including:
Pass sequentially through preposition anoxic pond, anaerobic pond, anoxic pond, aerobic tank and the sedimentation basin of pipeline connection;
One end of one water inlet line, the water inlet line is water inlet end, and the other end and the water inlet end of the preposition anoxic pond connect It connects;
One is mounted on the electromagnetic flowmeter for monitoring amount of inlet water on the water inlet line;
The water quality monitoring of the one COD, BOD for monitoring water inlet, ammonia nitrogen and total phosphorus content being mounted on the water inlet line fills It sets;
One is mounted on the first electric check valve on the water inlet line;
One end of one transition conduit, the transition conduit is attempted by the water inlet line and is located at first electric check valve Water inlet end front, the other end connect with the anaerobic pond;
One is mounted on the second electric check valve in the transition conduit;
One end of one first mixed-liquor return pipeline, the first mixed-liquor return pipeline is attempted by the aerobic tank and sedimentation basin Between pipeline on, the other end is attempted by the pipeline between the anaerobic pond and anoxic pond;
One is mounted on the third electric check valve on the first mixed-liquor return pipeline;
One end of one second mixed-liquor return pipeline, the second mixed-liquor return pipeline is attempted by the aerobic tank and sedimentation basin Between pipeline on, the other end is attempted by the pipeline between the preposition anoxic pond and anaerobic pond;
One is mounted on the 4th electric check valve on the second mixed-liquor return pipeline;
One third mixed-liquor return pipeline, one end of the third mixed-liquor return pipeline are attempted by the aerobic tank and sedimentation basin Between pipeline on, the other end is connect with the preposition anoxic pond;
One is mounted on the 5th electric check valve on the third mixed-liquor return pipeline;
One end of one first sludge return pipe, first sludge return pipe is connect with the sludge outlet of the sedimentation basin, Its other end is connect with the preposition anoxic pond;
One is mounted on the 6th electric check valve on first sludge return pipe;
One end of one second sludge return pipe, second sludge return pipe is connect with the sludge outlet of the sedimentation basin, Its other end is connect with the anaerobic pond;
One is mounted on the 7th electric check valve on second sludge return pipe;And
One PLC control system, the PLC control system respectively with the electromagnetic flowmeter, water monitoring device and first, Two, third, the connection of the four, the five, the six, the 7th electric check valves.
2. a kind of sewage disposal system, including sequentially connected coarse rack inlet pumping station, fine fack rotational flow grit chamber, A2O reacts Pond, secondary settling tank, lift pump room, flocculation sedimentation tank, filtering cloth filtering pool and disinfection oxidation pond, which is characterized in that the A2O reaction tanks For the modified form multi-mode operation A adjusted as described in claim 1 based on water quality and quantity2O reaction tanks.
3. sewage disposal system as claimed in claim 2, which is characterized in that heavy with flocculation in the fine fack rotational flow settling pond An overflowing rain water pipe is provided between the pond of shallow lake.
CN201810524491.8A 2018-05-28 2018-05-28 The modified form multi-mode operation A adjusted based on water quality and quantity2O reaction tanks and sewage disposal system Pending CN108483651A (en)

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