WO2021073522A1 - Mabr污水处理池、mabr污水处理系统及其使用方法 - Google Patents

Mabr污水处理池、mabr污水处理系统及其使用方法 Download PDF

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Publication number
WO2021073522A1
WO2021073522A1 PCT/CN2020/120800 CN2020120800W WO2021073522A1 WO 2021073522 A1 WO2021073522 A1 WO 2021073522A1 CN 2020120800 W CN2020120800 W CN 2020120800W WO 2021073522 A1 WO2021073522 A1 WO 2021073522A1
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Prior art keywords
mabr
sewage treatment
treatment
treatment unit
unit
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PCT/CN2020/120800
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English (en)
French (fr)
Inventor
王国锋
曹翠翠
赵亚男
位红永
田忠艳
赵鹤
李海雷
唐伟
白俊亮
杨献文
闫晓军
侯佳延
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天津海之凰科技有限公司
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Priority to EP20876964.6A priority Critical patent/EP4032864A4/en
Publication of WO2021073522A1 publication Critical patent/WO2021073522A1/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
    • C02F3/28—Anaerobic digestion processes
    • C02F3/2853—Anaerobic digestion processes using anaerobic membrane bioreactors
    • 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
    • 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
    • C02F3/10—Packings; Fillings; Grids
    • C02F3/102—Permeable membranes
    • 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
    • C02F3/12—Activated sludge processes
    • C02F3/20—Activated sludge processes using diffusers
    • C02F3/208—Membrane aeration
    • 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
    • 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
    • C02F3/286—Anaerobic digestion processes including two or more steps
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/007—Modular design
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/22—O2
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
    • 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
    • C02F3/301—Aerobic and anaerobic treatment in the same reactor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Definitions

  • the present disclosure relates to the technical field of sewage treatment, in particular to a MABR sewage treatment tank, a MABR sewage treatment system and a method of use thereof.
  • the embodiments of the present disclosure provide a sewage treatment tank, which is provided with several MABR module processing units, which can effectively improve the sewage treatment efficiency without changing the land occupation of the original sewage treatment facilities, and achieve the improvement.
  • the purpose of marking or increasing capacity is provided.
  • the embodiment of the present disclosure also provides a sewage treatment system as described above, and the sewage treatment system includes the above-mentioned sewage treatment tank.
  • the embodiment of the present disclosure also provides a method for using the sewage treatment system.
  • an MABR sewage treatment tank provided by an embodiment of the present disclosure includes at least two of a MABR anaerobic treatment unit, a MABR anoxic treatment unit, and a MABR aerobic treatment unit that are connected to each other;
  • the MABR anaerobic treatment unit, the MABR hypoxia treatment unit and the MABR aerobic treatment unit are each provided with several MABR module treatment units, and the MABR module treatment unit is placed in the MABR anaerobic treatment unit in a ready-to-use form , MABR anoxic treatment unit and MABR aerobic treatment unit for sewage treatment;
  • the module processing unit is mainly composed of MABR membrane modules, membrane module racks and corresponding pipeline control valves.
  • the MABR anaerobic treatment unit, the MABR anoxic treatment unit, and the MABR aerobic treatment unit are all connected with a gas supply pipeline, and the gas supply pipeline is configured to provide gas required by the MABR module treatment unit during sewage treatment.
  • a valve is provided on the gas supply pipeline, and the valve is configured to adjust the amount and pressure of gas entering the MABR anaerobic treatment unit, the MABR hypoxia treatment unit, or the MABR aerobic treatment unit.
  • the air supply pipeline includes a main air supply tube, a branch air tube, and a bottom air tube, the branch air tube and the bottom air tube of the trachea are both connected to the air supply line, and the branch air tube and the bottom air tube are both connected to the air supply line.
  • a valve is provided on the trachea at the bottom of the trachea to control and regulate the air flow.
  • the several MABR module processing units are connected in series or in parallel via branch air pipes.
  • an aerator is further provided in the MABR processing unit, the aerator is connected to the bottom air pipe, and the use of the aerator is controlled by a control valve, and the aerator operates intermittently.
  • the dissolved oxygen content of the MABR anaerobic treatment unit is 0-0.2 mg/L;
  • the dissolved oxygen content of the MABR hypoxia treatment unit is 0.2-0.5 mg/L;
  • the dissolved oxygen content of the MABR aerobic treatment unit is 1.0-3.0 mg/L.
  • an embodiment of the present disclosure provides a MABR sewage treatment system, where the MABR sewage treatment system includes the aforementioned MABR sewage treatment tank.
  • the sewage treatment system includes a regulating tank, a pretreatment tank, a primary sedimentation tank, the above-mentioned MABR sewage treatment tank, a secondary sedimentation tank, and a chemical dosing device that are connected in sequence.
  • the method for using the MABR sewage treatment system specifically includes the following steps:
  • the MABR module processing unit is implanted in the anaerobic, anoxic and aerobic areas of the original or newly built sewage treatment plant in the form of a single module or multiple modules;
  • the sewage treatment tank provided by the embodiment of the present disclosure includes at least two of the MABR anaerobic treatment unit, the MABR anoxic treatment unit, and the MABR aerobic treatment unit that are connected to each other; the MABR anaerobic treatment unit and the MABR anoxic treatment unit Both the unit and the MABR aerobic treatment unit are provided with several MABR module treatment units, and the MABR module treatment units are placed in the MABR anaerobic treatment unit, MABR anoxic treatment unit and MABR aerobic treatment unit in a ready-to-use form It is used for sewage treatment; the module processing unit is mainly composed of MABR membrane module and membrane module frame. On the basis of not changing the land occupied by the original sewage treatment facilities, the sewage treatment efficiency is effectively improved, and the purpose of raising the standard or increasing the capacity has been achieved.
  • the sewage treatment system may include the above-mentioned sewage treatment tank, which effectively improves the sewage treatment efficiency, and realizes the upgrading or capacity increase of the sewage treatment system without changing the original sewage treatment. .
  • FIG. 1 is a schematic diagram of the overall top view structure of a sewage treatment tank provided by an embodiment of the disclosure
  • FIG. 2 is a schematic diagram of a cross-sectional structure of a sewage treatment tank provided by an embodiment of the disclosure
  • Fig. 3 is a schematic flow diagram of a sewage treatment system provided by an embodiment of the disclosure.
  • Icon 4-Sewage treatment tank; 41-MABR treatment unit; 411-MABR module treatment unit; 413-gas supply pipeline; 412-valve; 42-water inlet; 43-water outlet; 44-partition; 441-pass water Hole; 4131-Main air supply pipe; 4132-Branch air pipe; 4133-Bottom air pipe; 414-Aerator; 46-Flow thruster; 45-Fixed bracket; 1-Regulating tank; 2-Pretreatment tank; Settling tank; 5-Second settling tank; 6-Dosing device.
  • a MABR sewage treatment tank 4 is provided.
  • the sewage treatment tank 4 may include at least two of a MABR anaerobic treatment unit, a MABR anoxic treatment unit, and a MABR aerobic treatment unit that are connected to each other;
  • the MABR anaerobic treatment unit, MABR hypoxia treatment unit, and MABR aerobic treatment unit may each be provided with several MABR module processing units 411, and the MABR module processing unit 411 is placed in the MABR anaerobic treatment unit in a ready-to-use form.
  • Oxygen treatment unit, MABR anoxic treatment unit and MABR aerobic treatment unit are used for sewage treatment;
  • the module processing unit is mainly composed of MABR membrane modules, membrane module racks and corresponding pipeline control valves 412.
  • MABR Membrane Aerated Biofilm Reactor
  • MABR Membrane Aerated Biofilm Reactor
  • aeration membrane module to carry out non-foam aeration to the microbial membrane and water body growing on the surface of the polymer membrane.
  • oxygen and nutrients are separated from the hollow Both sides of the fiber membrane are used by microorganisms through the action of concentration difference drive and microorganism adsorption. While using nutrients, microorganisms decompose pollutants in water bodies into simple inorganic metabolites.
  • the MABR module processing unit 411 provides an attachment carrier for the growth of biofilms on the one hand; on the other hand, MABR passes high-pressure oxygen or high-pressure air into the inner cavity of the membrane to allow oxygen to pass through the membrane without bubbles.
  • the form is that the biological membrane attached to the surface of the aeration membrane supplies oxygen to purify the water body.
  • the above-mentioned "at least two" in the present disclosure means that the MABR anaerobic treatment unit, MABR anoxic treatment unit, and MABR aerobic treatment unit are a combination of two or more, and there may be more than one.
  • the sewage treatment tank 4 can be a combination of multiple MABR anaerobic treatment units and one MABR anoxic treatment unit, or a combination of multiple MABR anaerobic treatment units and multiple MABR anoxic treatment units, or It is a combination of multiple MABR anaerobic treatment units and multiple MABR anoxic treatment units and multiple MABR aerobic units.
  • the specific working raw materials and functions of the MABR module processing unit 411 for sewage treatment provided by the embodiment of the present disclosure are:
  • the MABR sewage treatment tank 4 may include at least two of the MABR anaerobic treatment unit, the MABR anoxic treatment unit, and the MABR aerobic treatment unit that are connected to each other; the MABR The anaerobic treatment unit, the MABR hypoxia treatment unit, and the MABR aerobic treatment unit are each provided with several MABR module treatment units 411, and the MABR module treatment units 411 are used for sewage treatment.
  • the sewage treatment tank 4 of the embodiment of the present disclosure effectively improves the existing MABR anaerobic treatment unit, MABR anoxic treatment unit, and MABR aerobic treatment unit through the addition of the MABR module treatment unit 411 (produces the effects of concentration driving and microbial adsorption).
  • the sewage treatment efficiency of the treatment unit further realizes the purpose of upgrading the standard or increasing the capacity without changing the land occupation of the original sewage treatment facility.
  • the MABR membrane module is composed of a MABR composite membrane and heads at both ends of the MABR composite membrane, and the MABR composite membrane is mainly composed of hollow fiber membranes.
  • the hollow fiber membrane is a composite membrane for MABR disclosed in CN203139913, which has the advantages of strong oxygen permeability, high strength, and good film-hanging performance.
  • the MABR treatment unit 41 can be divided into a MABR anaerobic treatment unit, a MABR anoxic treatment unit, and a MABR aerobic treatment unit.
  • the oxygen in the MABR module processing unit 411 penetrates the oxygen from the inside to the outside through the hollow fiber membrane filaments, and the microorganisms adhere to the outer surface of the membrane filaments to gradually form a microbial membrane from the inside to the outside.
  • the hollow fiber membrane in the MABR anaerobic treatment unit is in an anaerobic environment, but the microbial membrane structure on the surface of the membrane can simultaneously realize nitrification and denitrification, decarbonization and phosphorus removal (removal of COD and nitrogen at the same time), etc.;
  • the hollow fiber membrane of the oxygen treatment unit is in an anoxic environment, but the microbial membrane structure on the surface of the membrane can also simultaneously realize nitrification and denitrification, decarbonization and phosphorus removal (removing COD and nitrogen at the same time); in the MABR aerobic treatment unit
  • the hollow fiber membrane is in an aerobic environment, and a large number of aerobic microorganisms grow on the outer surface of the membrane filament.
  • the aerobic treatment effect is very good, and the MABR membrane has a high oxygen utilization rate, which can save air supply; microorganisms are easy to adhere to the surface of the membrane filament.
  • the reclaimed water quality fluctuates, the microbial film will fall off, but it can be recovered in a short time, and the impact resistance is strong.
  • the sewage treatment tank 4 may be provided with a water inlet 42 and a water outlet 43, and the water inlet 42 may be provided on the first MABR processing unit 41, and the outlet The nozzle 43 can be arranged on the last MABR processing unit 41.
  • the partition 44 may be vertically arranged in the sewage treatment tank 4, and the sewage treatment tank 4 is divided into a plurality of relatively independent regions.
  • One end of the partition 44 A water passing hole 441 may be provided, wherein the water passing hole on the partition closest to the water inlet 42 may be provided at the end of the partition far away from the water inlet 42, and two adjacent partitions
  • the water-passing holes on the plate can be respectively arranged at the opposite ends of the corresponding partitions, that is, the water-passing holes can be alternately arranged at the upper end or the lower end of the partition, wherein the distance from the outlet
  • the water passage hole on the partition nearest to the water port 43 may be provided at the end of the partition 44 away from the water inlet 43, so that the sewage flows through the longitudinal length of the independent area separated by the partition.
  • the MABR treatment unit 41 After the MABR treatment unit 41, it can enter the next independent area through the water hole 441 to flow through the next MABR treatment unit 41, so that the sewage flows in the sewage treatment tank 4 in a substantially "S"-shaped path through the sewage treatment tank 4 Each of the independent areas maximizes the length of the sewage flow in a limited space.
  • the partition 44 may be replaced with a partition wall vertically arranged in the sewage treatment tank 4, and the end of the partition wall may be provided with a flow channel, and the sewage may enter the lower part from a MABR processing unit 41 through the flow channel.
  • a MABR processing unit 41 Similarly, the location of the flow channel is the same as the form of the water hole.
  • the MABR processing unit 41 may also be provided with a fixing bracket 45, and multiple MABR membrane modules may be fixedly installed on a fixing bracket 45, so that the MABR module processing unit 411 is more firmly arranged in the MABR processing unit 41.
  • the MABR anaerobic treatment unit, MABR hypoxia treatment unit, and MABR aerobic treatment unit may all be connected with a gas supply pipeline 413, and the gas supply pipeline 413 may be
  • the main air supply pipe 4131, a branch air pipe 4132, and a bottom air pipe 4133 are formed.
  • the bottom air pipe 4133 may also be provided with at least one aerator 414; both the branch air pipe 4132 and the bottom air pipe 4133 may be connected to the air supply pipe.
  • the circuit 413 is connected, the branch air pipe 4132 and the bottom air pipe 4133 can be controlled by the valve 412, and the valve 412 of the bottom air pipe 4133 can be in an intermittent operation state, and the number of opening times and time is small and short.
  • the air supply pipeline 413 is provided with at least one bronchial tube.
  • the air supply pipeline 413 is provided with a bronchus corresponding to the MABR module processing unit 411 one-to-one.
  • the branch gas pipeline is configured to provide gas required by the MABR module processing unit 411 during sewage treatment.
  • the main air supply pipe 4131, the branch air pipe 4132, and the bottom air pipe 4133 may also be provided with a valve 412, and the valve 412 is configured to adjust to enter the MABR anaerobic treatment unit, the The amount and pressure of gas in the MABR anoxic treatment unit and the MABR aerobic treatment unit.
  • the branch air pipe 4132 and the bottom air pipe 4133 are respectively provided with valves 412 to adjust the flow of gas.
  • the MABR processing unit 41 is provided with at least one MABR module processing unit 411, and the MABR processing unit 41 is optionally provided with a plurality of MABR module processing units 411;
  • the MABR module processing unit 411 of the MABR processing unit 41 is connected in series or in parallel through the branch air pipe 4132.
  • either a series connection or a parallel connection can be used to connect the MABR module processing units 411 together, as long as the purpose of saving space is achieved.
  • the MABR processing unit 41 may also be provided with at least one aerator 414.
  • the MABR processing unit 41 is provided with The number of MABR processing units 41 corresponds to the aerators, and the aerators 414 are in communication with the bottom air pipe 4133.
  • the aerator 414 may be arranged below the MABR module processing unit 411.
  • the aerator 414 can be operated intermittently and is configured to open when the biofilm in the MABR module processing unit 411 is thick, so that the microbial film on the hollow fiber membrane is more Play well in degradation.
  • the dissolved oxygen content of the MABR anaerobic treatment unit is 0-0.2 mg/L;
  • the dissolved oxygen content of the MABR hypoxia treatment unit is 0.2-0.5 mg/L;
  • the dissolved oxygen content of the MABR aerobic treatment unit is 1.0-3.0 mg/L.
  • a flow thruster 46 may also be provided in the sewage treatment tank 4.
  • the above-mentioned sewage treatment tank 4 may also be provided with at least one flow thruster 46 in the MABR treatment unit, and the flow thruster 46 may flow in the MABR treatment unit along the water flow.
  • the flow direction is set at the end and spaced apart.
  • the flow thruster 46 can be set near the water passing holes of two adjacent MABR processing units, and the flow thruster is configured to push the water flow in the sewage.
  • the specific steps of sewage treatment in the MABR sewage treatment tank 4 are as follows:
  • the MABR module processing unit 411 is arranged in the MABR processing unit 41 in a single or series-parallel manner through the branch air pipe, and the main air supply pipe is connected according to the number and arrangement of the MABR processing unit 41 and the MABR module processing unit 411 Road 413, branch air pipe 4132, bottom air pipe 4133 and valve 412, through the valve 412 set on the corresponding air pipe, the air supply is controlled to meet the dissolved oxygen demand of each MABR processing unit 41 and the layered structure demand of biofilm;
  • the control of the dissolved oxygen content of the water in the corresponding MABR treatment unit is as follows: the dissolved oxygen content of the MABR anaerobic treatment unit can be 0-0.2 mg/L; the dissolved oxygen content of the MABR anoxic treatment unit can be 0.2 ⁇ 0.5mg/L; the dissolved oxygen content of the MABR aerobic treatment unit can be 1.0 ⁇ 3.0mg/L; the activated sludge of the sewage treatment plant and the nutrients in the pollutants in the sewage are used for microbial inoculation and biofilm domestication;
  • each MABR processing unit 41 is controlled at 0-80kPa, and the air supply pressure of each group of MABR module processing units 411 is adjusted through the branch air pipe 4132 and the valve 412 provided on the branch air pipe;
  • each MABR treatment unit 41 realizes its set dissolved oxygen environment and the layered structure of biofilm to achieve nitrogen in the water body , Efficient removal of phosphorus and organic carbon.
  • a sewage treatment system including the above-mentioned sewage treatment tank 4.
  • the sewage treatment system may include the above-mentioned sewage treatment tank 4, and the treatment system effectively improves the sewage treatment efficiency in the different dissolved oxygen ranges by adding the MABR module processing unit 411. , To achieve the purpose of upgrading or increasing the capacity on the basis of not changing the original sewage treatment.
  • a method for using the above-mentioned MABR sewage treatment system is provided, which may specifically include the following steps:
  • the MABR module processing unit 411 is implanted in the anaerobic, anoxic and aerobic areas of the original or newly built sewage treatment plant in the form of a single module or multiple modules;
  • the outer surface of the hollow fiber membrane of the MABR membrane module is used to form a microbial membrane structure to achieve simultaneous nitrification and denitrification in the same MABR sewage treatment tank 4, thereby purifying sewage.
  • FIG. 1 is a schematic diagram of the overall top view structure of the MABR sewage treatment tank 4 provided by an embodiment of the disclosure
  • a MABR sewage treatment tank 4 the MABR sewage treatment tank 4 can be composed of 1 MABR anaerobic treatment unit, 2 MABR anoxic treatment units and 3 MABR aerobic treatment units, specifically ,
  • the MABR treatment unit 41 closest to the water inlet 42 can be one MABR anaerobic treatment unit, and MABR anoxic treatment units and MABR aerobic treatment units are sequentially arranged in the direction from the water inlet 42 to the water outlet 43, and the number can be, for example, 2 MABR anoxic treatment units and 3 MABR aerobic treatment units;
  • the pretreated sewage enters from one end of the MABR anaerobic treatment unit of the MABR tank and flows to the bottom of the tank body, and the bottom is equipped with a water inlet and distributor to The incoming water is distributed, and the gas source is supplied to each treatment area through the gas supply pipeline 413.
  • a MABR membrane module frame 45 can be used to install and fix the designed number of MABR membrane modules 411 on this MABR membrane module frame; MABR hypoxia treatment unit and aerobic treatment unit are equipped with corresponding treatment units The number of MABR membrane module racks corresponding to the number of MABR membrane modules is installed and fixed on each MABR membrane module rack in groups of the designed number of MABR membrane modules, and the membrane module racks equipped with MABR membrane modules are installed inside the pool.
  • the MABR sewage treatment tank 4 is not limited to the above-mentioned layout, and the corresponding treatment area can be adjusted according to the water quality and quantity requirements.
  • the MABR sewage treatment tank 4 can adopt a plug flow type, and each area is separated by a partition 44 or a partition wall.
  • the partition 44 is provided with water at the end opposite to the end of the previous partition where the water hole is provided.
  • Sewage enters the next MABR processing unit 41 from one MABR processing unit 41 through the water hole; Sewage enters from the water inlet 42, sequentially enters the MABR anaerobic processing unit, flows through the water hole, enters the MABR anoxic processing unit, and flows through The water hole enters the MABR aerobic treatment unit.
  • at least one flow thruster 46 can be installed near the water hole in each treatment area.
  • the water-passing holes on two adjacent partitions in the MABR sewage treatment tank 4 can be respectively arranged at the opposite ends of the corresponding partitions, that is, the water-passing holes can be alternately arranged at the upper ends of the partitions Or at the lower end, correspondingly, the independent area separated by the partition in the MABR sewage treatment tank 4 adopts the opposite end of the water inlet and outlet mode, that is, the lower inlet and the water outlet or the upper inlet and the underwater outlet, and the overflow can be set at the outlet.
  • the weir is collected and discharged into the next process.
  • the MABR anaerobic treatment unit, MABR anoxic treatment unit, and MABR aerobic treatment unit are each provided with several MABR module treatment units 411, and the MABR module treatment unit 411 is used for sewage treatment.
  • the sewage treatment tank 4 is provided with a water inlet 42 and a water outlet 43.
  • the water inlet 42 is provided on the first MABR treatment unit 41 (MABR anaerobic treatment unit), and the water outlet 43 is provided at the end.
  • One MABR processing unit 41 (aerobic processing unit).
  • FIG. 2 is a schematic cross-sectional structure diagram of a sewage treatment tank 4 provided by an embodiment of the disclosure.
  • the air supply pipe 413 may be composed of a main air supply pipe 4131, a branch air pipe 4132, and a bottom air pipe 4133. Both the branch air pipe 4132 and the bottom air pipe 4133 may be connected to the air supply pipe 413. Connected.
  • the MABR processing unit 41 is also provided with a fixing bracket 45, and a plurality of MABR membrane modules are fixedly installed on a fixing bracket 45, so that the MABR module processing unit 411 is more It is firmly set in the MABR processing unit 41.
  • the main air supply pipe 4131, the branch air pipe 4132, and the bottom air pipe 4133 may also be provided with a valve 412, and the valve 412 is configured to control the branch air pipe 4132. And the intake air volume of the bottom air pipe 4133 to adjust the volume and pressure of the air entering the corresponding MABR processing unit.
  • the bottom air pipe 4133 in the MABR processing unit 41 may also be provided with an aerator 414, and the aerator 414 may be communicated with the bottom air pipe 4133, and
  • the aerator 414 can be arranged below the MABR module processing unit 411, and the aerator 414 can be controlled by the valve 412 of the corresponding bottom air pipe 4133 to make the corresponding aerator 414 run intermittently.
  • the sewage treatment tank 4 may also be provided with at least one flow thruster 46 in the MABR treatment unit, and the flow thruster 46 may be installed in the MABR treatment unit along the water flow.
  • the flow direction is set at the end and spaced apart.
  • the flow thruster 46 can be set near the water passing holes of two adjacent MABR processing units, and the flow thruster 46 is configured to push the water flow in The flow in the sewage treatment tank 4 and between adjacent MABR treatment units, thereby speeding up the sewage treatment effect.
  • the MABR sewage treatment tank 4 can be composed of 1 MABR anaerobic treatment unit, 2 MABR anoxic treatment units and 3 MABR aerobic treatment units.
  • the pretreated sewage (after the initial precipitation) enters from one end of the MABR anaerobic treatment unit, and the inflow end is equipped with a water distributor.
  • the independent area separated by a partition in the MABR sewage treatment tank 4 uses the opposite end to enter and exit the water.
  • the water flow enters the MABR anaerobic treatment unit, the MABR anoxic treatment unit and the MABR aerobic treatment unit in turn, and the microbial film attached to the surface of the MABR membrane pollutes the water body. Degradation is carried out, so that the sewage can be purified and treated.
  • the specific implementation process of the embodiments of the present disclosure may include the following steps:
  • a membrane module rack is installed in the MABR anaerobic treatment unit.
  • the MABR membrane modules are evenly fixed on the membrane module rack according to the design number.
  • the MABR anoxic treatment unit and the MABR aerobic treatment unit are equipped with the corresponding number of treatment units.
  • MABR membrane modules are grouped and fixed on the membrane module rack, and the membrane module racks that fix the MABR membrane modules are placed in the MABR hypoxia treatment unit and the MABR aerobic zone treatment unit according to design calculations.
  • the gas source is supplied through the gas supply pipe 413.
  • the main gas supply pipe 4131 extends laterally along the side of the MABR sewage treatment tank 4, and passes through the MABR anaerobic treatment unit, MABR anoxic treatment unit and MABR in the transverse direction. Aerobic treatment unit; the main air supply pipe 4131 is provided with a bronchial pipe 4132 at the corresponding treatment unit, and the bronchial pipe 4132 extends in the longitudinal direction and communicates with each membrane in the corresponding MABR membrane module to supply air to it.
  • the bronchial pipeline is provided with a valve 412, and the dissolved oxygen content in each treatment unit is adjusted by controlling the corresponding valve.
  • the dissolved oxygen content of the MABR anaerobic treatment unit can be 0 ⁇ 0.2mg/L, and the dissolved oxygen of the MABR hypoxia treatment unit The content can be 0.2-0.5 mg/L, and the dissolved oxygen content of the MABR aerobic treatment unit can be 1.0-3.0 mg/L.
  • the bottom air pipe 4133 is connected to the main air supply pipe 4131.
  • the bottom air pipe 4133 is located below the MABR membrane module and extends in the corresponding processing area, that is, the corresponding MABR processing unit.
  • the aerator 414 provided on the bottom air pipe 4133 It is controlled by the control valve corresponding to the bottom air pipe and can run intermittently.
  • Each treatment area of the MABR sewage treatment tank 4 is separated by a partition 44 or a partition wall.
  • at least one flow thruster 46 is provided in the MABR anaerobic treatment unit, and the flow thruster 46 can flow in the MABR treatment unit along the water flow.
  • the flow direction is set at the end and spaced apart.
  • the flow thruster 46 can be set near the water passing holes of two adjacent MABR processing units, and the flow thruster 46 is configured to push the water flow in the sewage The flow in the treatment tank 4 and between adjacent MABR treatment units, thereby speeding up the sewage treatment effect.
  • an embodiment of the present disclosure provides a sewage treatment system.
  • the sewage treatment system may include a regulating tank 1, a pretreatment tank 2, a primary sedimentation tank 3, and the sewage treatment provided by the embodiment of the present disclosure.
  • a dosing device 6 may be further provided between the above-mentioned sewage treatment tank 4 and the secondary settling tank 5.
  • the sewage treatment system provided by the embodiment of the present disclosure may include the above-mentioned sewage treatment tank 4.
  • the treatment system effectively improves the sewage treatment efficiency in the different dissolved oxygen ranges by adding the MABR component, and realizes that the original sewage treatment efficiency is not changed. There is the purpose of upgrading or increasing the capacity on the basis of sewage treatment.
  • An urban sewage treatment plant has a processing water volume of 5000 m 3 /d, and the effluent quality meets the first level B standard of the Pollutant Discharge Standard for Urban Sewage Treatment Plants (GB18918-2002).
  • the treatment process is A2O process, and the effluent is discharged to nearby In the river course, due to stricter environmental governance requirements, the discharge standard of this sewage treatment plant is raised to the "Urban Sewage Treatment Plant Pollutant Discharge Standard" (GB18918-2002) level A standard, that is, the main water quality index of the effluent reaches COD ⁇ 50mg/L, ammonia nitrogen ⁇ 5mg/L, TN ⁇ 15mg/L, TP ⁇ 0.5mg/L.
  • Transform the sewage treatment plant intercept a part of the biochemical treatment process, and transform the treated water volume at 1000m 3 /d, and set up 1 MABR anaerobic treatment unit, 2 MABR anoxic treatment units, and MABR aerobic treatment provided by the embodiments of the present disclosure.
  • the main indicators of the effluent after the transformation treatment reach COD ⁇ 45mg/L, ammonia nitrogen ⁇ 4mg/L, TN ⁇ 15mg/L, TP ⁇ 0.5mg/L, can meet the "Urban Sewage Treatment Plant Pollutant Discharge Standard" (GB18918-2002) level A standard, so it can meet the requirements of the original pool without changing the original tank volume and realize the improvement of water quality. effect.
  • a certain urban sewage treatment plant has a processing water volume of 10,000 m 3 /d, and the effluent quality is required to meet the "Urban Sewage Treatment Plant Pollutant Discharge Standard" (GB18918-2002) level A standard.
  • the treatment process is an A2O process, and the effluent is discharged to nearby In the river course, due to the increase in the amount of urban sewage, the amount of water entering the sewage treatment plant has greatly increased, and it is difficult for the original sewage treatment facilities to meet the demand for sewage treatment.
  • the sewage treatment plant was transformed, a part of the biochemical treatment process was intercepted, and the treated water volume was 2000m 3 /d for transformation, and 2 MABR anaerobic treatment units provided by the embodiments of the present disclosure, 3 MABR anoxic treatment units, and MABR were installed.
  • the sewage treatment tank 4 processes sewage through the MABR processing unit 41 provided with several MABR module processing units 411.
  • the MABR processing unit 41 is also provided with a gas supply pipeline. 413.
  • the gas supply pipeline 413 is provided with a valve 412 configured to control the dissolved oxygen content of each MABR treatment unit 41, thereby effectively improving the sewage treatment efficiency of the sewage treatment unit within the existing different dissolved oxygen ranges, thereby realizing the The purpose of upgrading or increasing capacity on the basis of changing the land occupied by the original sewage treatment facilities.
  • the sewage treatment system provided by the embodiments of the present disclosure may include the sewage treatment tank 4 provided by the embodiments of the present disclosure.
  • the sewage treatment system effectively improves the existing sewage treatment efficiency in different dissolved oxygen ranges, and realizes In order to improve the standard or increase the capacity on the basis of not changing the original sewage treatment.

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Abstract

一种MABR污水处理池、MABR污水处理系统及其使用方法，涉及污水处理技术领域，MABR污水处理池（4）包括相互连通的MABR厌氧处理单元、MABR缺氧处理单元和MABR好氧处理单元中的至少两个；所述MABR厌氧处理单元、MABR缺氧处理单元和MABR好氧处理单元的内部均设置有若干个MABR模块处理单元（411），所述MABR模块处理单元（411）以即用即放形式放置于MABR厌氧处理单元、MABR缺氧处理单元和MABR好氧处理单元中用于污水的处理；所述模块处理单元（411）主要由MABR膜组件与膜组件架组成。在不改变原有污水处理设施占地的基础上有效提高了污水处理效率，达到了提标或增容的目的。

Description

MABR污水处理池、MABR污水处理系统及其使用方法
相关申请的交叉引用
本公开要求于2019年10月16日提交中国专利局的申请号为CN201910980727.3、名称为“MABR污水处理池、MABR污水处理系统及其使用方法”的中国专利申请的优先权，其全部内容通过引用结合在本公开中。
技术领域
本公开涉及污水处理技术领域，尤其是涉及一种MABR污水处理池、MABR污水处理系统及其使用方法。
背景技术
近年来，随着城镇污水排放量日益增多，现有污水处理厂的处理能力受到限制，污水处理厂的提标改造已提上日程。目前现有技术多采用污水处理池单一层级升级或增加一体化处理设施强化处理，但一体化处理效率较低且会导致增加污水处理的工艺设备及流程，同时，单层级或一体化设备提升也并不能满足现有处理工艺集体提升的需求。
因此，在原有污水处理厂的基础上，研究开发出一种在不改变原有污水处理设施占地的基础上进行提标增容的污水处理系统，变得十分必要和迫切。
有鉴于此，特提出本公开。
发明内容
本公开的实施例提供了一种污水处理池，该处理池中设置有若干个MABR模块处理单元，可以在不改变原有污水处理设施占地的基础上有效提高了污水处理效率，达到了提标或增容的目的。
本公开的实施例还提供了一种所述的污水处理系统，该污水处理系统包括上述污水处理池。
本公开的实施例还提供了一种所述污水处理系统的使用方法。
可选地，本公开的实施例提供的一种MABR污水处理池，所述污水处理池包括相互连通的MABR厌氧处理单元、MABR缺氧处理单元和MABR好氧处理单元中的至少两个；
所述MABR厌氧处理单元、MABR缺氧处理单元和MABR好氧处理单元的内部均设置有若干个MABR模块处理单元，所述MABR模块处理单元以即用即放形式放置于MABR厌氧处理单元、MABR缺氧处理单元和MABR好氧处理单元中用于污水的处理；
所述模块处理单元主要由MABR膜组件与膜组件架及相应管线控制阀门组成。
可选地，所述MABR厌氧处理单元、MABR缺氧处理单元和MABR好氧处理单元均连通有供气管路，所述供气管路配置成提供MABR模块处理单元在污水处理时所需气体。
可选地，所述供气管路上设置有阀门，所述阀门配置成调节进入所述MABR厌氧处理单元、所述MABR缺氧处理单元或所述MABR好氧处理单元的气体量及压力。
可选地，所述供气管路包括主供气管、支路气管和底部气管，所述支路气管和所述气管底部气管均与所述供气管路相连通，所述支路气管和所述气管底部气管上设置有阀门用以控制调节气流。
可选地，所述若干个MABR模块处理单元通过支路气管以串联或并联的方式相连通。
可选地，所述MABR处理单元中还设置有曝气器，所述曝气器与底部气管相连通，由控制阀控制曝气器的使用，所述曝气器间歇式运行。
可选地，所述MABR厌氧处理单元的溶解氧含量0～0.2mg/L；
可选地，所述MABR缺氧处理单元的溶解氧含量为0.2～0.5mg/L；
可选地，所述MABR好氧处理单元的溶解氧含量1.0～3.0mg/L。
可选地，本公开实施例提供的一种MABR污水处理系统，所述MABR污水处理系统包括上述的MABR污水处理池。
可选地，所述污水处理系统包括依次连通的调节池、预处理池、初沉池、上述MABR污水处理池、二沉池及加药装置。
可选地，本公开实施例提供的上述MABR污水处理系统的使用方法，具体包括如下步骤：
(1)将MABR模块处理单元以单一模块或多模块形式植入到原有或新建的污水处理厂的厌氧区、缺氧区和好氧区；
(2)通过调节MABR污水处理池中的溶解氧含量达到处理区域实现厌氧/缺氧/好氧的溶解氧要求，或调整各处理单元的匹配；
(3)利用MABR膜组件的中空纤维膜外表面形成微生物膜结构实现在同一MABR污水处理池中同步硝化反硝化作用，从而使污水得到净化。
与现有技术相比，本公开的有益效果为：
本公开实施例提供的所述污水处理池包括相互连通的MABR厌氧处理单元、MABR缺氧处理单元和MABR好氧处理单元中的至少两个；所述MABR厌氧处理单元、MABR缺氧处理单元和MABR好氧处理单元的内部均设置有若干个MABR模块处理单元，所述MABR模块处理单元以即用即放形式放置于MABR厌氧处理单元、MABR缺氧处理单元和MABR好氧处理单元中用于污水的处理；所述模块处理单元主要由MABR膜组件与膜 组件架组成。在不改变原有污水处理设施占地的基础上有效提高了污水处理效率，达到了提标或增容的目的。
本公开实施例提供的污水处理系统，所述污水处理系统可以包括上述污水处理池，有效提高了污水处理效率，在不改变原有污水处理的基础上，实现了污水处理系统提标或增容。
附图说明
为了更清楚地说明本公开具体实施方式或现有技术中的技术方案，下面将对具体实施方式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，下面描述中的附图是本公开的一些实施方式，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。
图1为本公开实施例提供的污水处理池的整体俯视结构示意图；
图2为本公开实施例提供的污水处理池的剖面结构示意图；
图3为本公开实施例提供的污水处理系统流程示意图。
图标：4-污水处理池；41-MABR处理单元；411-MABR模块处理单元；413-供气管路；412-阀门；42-进水口；43-出水口；44-隔板；441-过水孔；4131-主供气管；4132-支路气管；4133-底部气管；414-曝气器；46-推流器；45-固定支架；1-调节池；2-预处理池；3-初沉池；5-二沉池；6-加药装置。
具体实施方式
下面将结合附图对本公开的技术方案进行清楚且完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
根据本公开的实施例提供了一种MABR污水处理池4，所述污水处理池4可以包括相互连通的MABR厌氧处理单元、MABR缺氧处理单元和MABR好氧处理单元中的至少两个；
所述MABR厌氧处理单元、MABR缺氧处理单元和MABR好氧处理单元的内部均可以设置有若干个MABR模块处理单元411，所述MABR模块处理单元411以即用即放形式放置于MABR厌氧处理单元、MABR缺氧处理单元和MABR好氧处理单元中用于污水的处理；
所述模块处理单元主要由MABR膜组件与膜组件架及相应管线控制阀门412组成。
MABR(膜曝气生物膜反应器)是一种利用曝气膜组件向生长在高分子膜表面的微生物膜和水体进行无泡曝气，在这一曝气过程中氧气和营养物分别从中空纤维膜的两侧，通过浓差驱动和微生物吸附等作用被微生物利用。微生物在利用营养物质的同时使水体中的污染物分解为简单的无机代谢产物。因此，在污水处理过程中，MABR模块处理单元411一方面为生物膜生长提供附着载体；另一方面，MABR是通过向膜内腔通入高压氧气或高压空气，使氧气透过膜以无泡形式为附着在曝气膜表面的生物膜供氧，从而对水体进行净化。
本公开上述的“至少两个”，意指所述MABR厌氧处理单元、MABR缺氧处理单元和MABR好氧处理单元为两个以上的组合，可以为多个。例如，所述污水处理池4可以为多个MABR厌氧处理单元和一个MABR缺氧处理单元的组合，也可以为多个MABR厌氧处理单元和多个MABR缺氧处理单元的组合，还可以为多个MABR厌氧处理单元和多个MABR缺氧处理单元和多个MABR好氧单元的组合。
本公开实施例提供的所述MABR模块处理单元411进行污水处理的具体工作原料和作用为：
本公开实施例提供的MABR污水处理池4，所述MABR污水处理池4可以包括相互连通的MABR厌氧处理单元、MABR缺氧处理单元和MABR好氧处理单元中的至少两个；所述MABR厌氧处理单元、MABR缺氧处理单元和MABR好氧处理单元的内部均设置有若干个MABR模块处理单元411，所述MABR模块处理单元411用于污水的处理。因而，本公开实施例的污水处理池4通过MABR模块处理单元411的加入(产生浓差驱动和微生物吸附等作用)有效提高了现有MABR厌氧处理单元、MABR缺氧处理单元和MABR好氧处理单元的污水处理效率，进而实现了在不改变原有污水处理设施占地的基础上进行提标或增容的目的。
可选的，所述MABR膜组件由MABR复合膜与MABR复合膜两端的封头组成，所述MABR复合膜主要由中空纤维膜构成。可选的，所述中空纤维膜为CN203139913中公开的MABR用复合膜，该复合膜具有透氧性能强、强度高且挂膜性能好等优势。
作为一种可选的实施方式，按溶解氧含量的不同，上述MABR处理单元41可以分为MABR厌氧处理单元、MABR缺氧处理单元和MABR好氧处理单元。MABR模块处理单元411中氧气通过中空纤维膜膜丝由内向外渗透氧气，微生物附着在膜丝外表面，逐渐形成由内到外的微生物膜。
其中，在MABR厌氧处理单元的中空纤维膜处于厌氧环境中，但膜丝表面的微生物膜结构可同步实现硝化反硝化及脱碳除磷(同时去除COD和氮素)等；在MABR缺氧处理单元的中空纤维膜处于缺氧环境中，但膜丝表面的微生物膜结构也可同步实现硝化反硝化 及脱碳除磷等(同时去除COD和氮素)；在MABR好氧处理单元的中空纤维膜处于好氧环境中，大量好氧微生物生长在膜丝外表面，好氧处理效果非常好，且MABR膜氧气利用率高，可以节约供气量；微生物易附着在膜丝表面，系统中水质有冲击波动时，微生物膜会有脱落，但可在短时间内恢复，抗冲击能力强。
在本公开实施例的一种可选实施方式中，所述污水处理池4可以设置有进水口42和出水口43，所述进水口42可以设置于首个MABR处理单元41上，所述出水口43可以设置于最后一个MABR处理单元41上。
在本公开实施例提供的可选的实施方式中，所述隔板44可以竖直地设置于污水处理池4中，将污水处理池4分割成相对独立的多个区域，隔板44的一端可以设置有过水孔441，其中，距所述进水口42最近的所述隔板上的所述过水孔可以设置于该隔板的远离进水口42的端部处，相邻两个隔板上的过水孔可以分别地设置于相应隔板的相反的两个端部处，即过水孔可以交替地设置于所述隔板的上端部或下端部处，其中，距所述出水口43最近的所述隔板上的所述过水孔可以设置于该隔板44的远离进水口43的端部处，从而污水流过隔板分隔出的独立区域的纵向长度而流经一个MABR处理单元41之后，可以通过过水孔441进入下一个独立区域从而流经下一个MABR处理单元41，使得污水在污水处理池4中以大致“S”形的路径流经污水处理池4中的各个独立区域，在有限的空间内使污水的流程长度最大化。
可选的，所述隔板44可替换为竖直设置于污水处理池4中的隔墙，所述隔墙的末端可以设置有流道，污水可以通过流道从一个MABR处理单元41进入下一个MABR处理单元41。类似地，流道设置的位置与过水孔设置的形式相同。
在本公开实施例的一种可选实施方式中，所述MABR处理单元41中还可以设置有固定支架45，多个MABR膜组件可以固定安装在一个固定支架45上，从而使MABR模块处理单元411更为牢固的设置于MABR处理单元41中。
在本公开实施例的一种可选实施方式中，所述MABR厌氧处理单元、MABR缺氧处理单元和MABR好氧处理单元均可以连通有供气管路413，所述供气管路413可以由主供气管4131、支路气管4132和底部气管4133构成，所述底部气管4133还可以设置有至少一个曝气器414；所述支路气管4132和所述底部气管4133均可以与所述供气管路413相连通，所述支路气管4132和所述底部气管4133均可以由阀门412控制，且底部气管4133的阀门412可以属于间歇运行状态，开启的次数和时间少而短。
作为本公开实施例的一种可选的实施方式，所述供气管路413设置有至少一个支气管路，可选的，所述供气管路413设置有与MABR模块处理单元411一一对应的支气管路， 所述支气管路配置成提供MABR模块处理单元411在污水处理时所需的气体。
在上述可选的实施方式中，所述主供气管4131、支路气管4132和底部气管4133上还可以设置有阀门412，所述阀门412配置成调节进入所述MABR厌氧处理单元、所述MABR缺氧处理单元和所述MABR好氧处理单元的气体的量及压力。
可选的，所述支路气管4132和底部气管4133上分别设置有阀门412，以调节气体的流量。
在本公开实施例的上述可选的实施方式中，所述MABR处理单元41设置有至少一个MABR模块处理单元411，可选的所述MABR处理单元41设置有多个MABR模块处理单元411；所述MABR处理单元41的MABR模块处理单元411通过支路气管4132以串联或并联的方式相连通。
作为本公开实施例的一种可选的实施方式，既可以使用串联的方式，也可以使用并联的方式将MABR模块处理单元411连通在一起，只要达到节省空间的目的即可。
在上本公开实施例的所述可选的实施方式中，所述MABR处理单元41中还可以设置有至少一个曝气器414，可选的，所述MABR处理单元41中设置有与所述MABR处理单元41的数量相对应的所述曝气器，所述曝气器414与底部气管4133相连通。
可选的，所述曝气器414可以设置于MABR模块处理单元411的下方。
作为本公开实施例的一种可选的实施方式，所述曝气器414可以间歇运行并被配置成当MABR模块处理单元411中生物膜较厚时打开，使中空纤维膜上的微生物膜更好地发挥降解作用。
在本公开实施例的一种可选实施方式中，所述MABR厌氧处理单元的溶解氧含量为0～0.2mg/L；
优选的，所述MABR缺氧处理单元的溶解氧含量为0.2～0.5mg/L；
优选的，所述MABR好氧处理单元的溶解氧含量为1.0～3.0mg/L。
在本公开实施例的一种可选实施方式中，所述污水处理池4中还可以设置有推流器46。
作为本公开实施例的一种可选的实施方式，上述污水处理池4中还可以在MABR处理单元中设置有至少一个推流器46，所述推流器46可以沿水流在该MABR处理单元中的流动方向设置在端部处、间隔设置，可选的，所述推流器46可以设置在相邻两个MABR处理单元的过水孔附近，所述推流器配置成推动水流在污水处理池4中以及在相邻MABR处理单元之间的流动，从而加快污水的处理的整体效果。可选的，所述MABR污水处理池4的污水处理具体步骤如下：
(a)、根据水质、水量及处理要求，设计和计算MABR处理单元41的数量以及MABR 处理单元41中的MABR模块处理单元411数量，并设计MABR模块处理单元411在每个处理区域内的布设方式；
(b)、将MABR模块处理单元411通过所述支路气管以单独或串并联形式布设在MABR处理单元41中，根据MABR处理单元41及MABR模块处理单元411的数量及布设方式连接主供气管路413、支路气管4132、底部气管4133和阀门412，通过设置在相应气管上的阀门412控制供气量满足每个MABR处理单元41的溶解氧需求和生物膜的分层结构需求；
其中，相应MABR处理单元中水体溶解氧含量的控制分别为：所述MABR厌氧处理单元的溶解氧含量可以为0～0.2mg/L；所述MABR缺氧处理单元的溶解氧含量可以为0.2～0.5mg/L；所述MABR好氧处理单元的溶解氧含量可以为1.0～3.0mg/L；利用污水处理厂的活性污泥和污水中污染物的营养进行微生物接种和生物膜驯化；
(c)、每个MABR处理单元41的供气压力控制在0～80kPa，通过支路气管4132及设置在所述支气管路上的阀门412调节每组MABR模块处理单元411的供气压力；
(d)、根据水质、水量及处理要求，调控设置在相应气管上的阀门412使每个MABR处理单元41实现其设定的溶解氧环境以及生物膜的分层结构，以实现水体的氮素、磷及有机碳的高效去除。
根据本公开的实施例，提供了一种包括上述污水处理池4的污水处理系统。
本公开实施例提供的污水处理系统，所述污水处理系统可以包括上述污水处理池4，该处理系统通过加入MABR模块处理单元411的方式，有效提高了现有不同溶解氧范围内的污水处理效率，实现了在不改变原有污水处理的基础上进行提标或增容的目的。
根据本公开的实施例，提供了一种上述MABR污水处理系统的使用方法，具体可以包括如下步骤：
(1)将MABR模块处理单元411以单一模块或多模块形式植入到原有或新建的污水处理厂的厌氧区、缺氧区和好氧区；
(2)通过调节MABR污水处理池4中的溶解氧含量达到处理区域实现厌氧/缺氧/好氧的溶解氧要求，或调整各处理单元的匹配；
(3)利用MABR膜组件的中空纤维膜外表面形成微生物膜结构实现在同一MABR污水处理池4中同步硝化反硝化作用，从而使污水得到净化。
下面将结合实施例和附图对本公开的技术方案进行进一步地说明。
图1为本公开实施例提供的MABR污水处理池4的整体俯视结构示意图；
如图1所示，一种MABR污水处理池4，所述MABR污水处理池4可以由1个MABR 厌氧处理单元、2个MABR缺氧处理单元和3个MABR好氧处理单元组成，具体地，最接近进水口42的MABR处理单元41可以为1个MABR厌氧处理单元，在进水口42到出水口43的方向上依次设置MABR缺氧处理单元和MABR好氧处理单元，数量例如可以为2个MABR缺氧处理单元和3个MABR好氧处理单元；经过预处理后的污水从MABR池的MABR厌氧处理单元的一端进入并流动至池体底部，底部设有进水布水器以对来水进行分布，气源通过供气管路413供至各处理区域。MABR厌氧处理单元内，可以使用一个MABR膜组件架45，将设计数量的MABR膜组件411安装固定在此MABR膜组件架上；MABR缺氧处理单元和好氧处理单元设置有与相应处理单元的数量相对应的MABR膜组件架，将设计数量的MABR膜组件分组安装固定在每个MABR膜组件架上，将装有MABR膜组件的膜组件架安装于水池内部。
MABR污水处理池4不限于上述的布局，根据水质水量要求，可以对相应处理区域进行调整。
MABR污水处理池4可以采用推流式，每个区域用隔板44或隔墙隔开，隔板44在与上一隔板设置有过水孔的端部相反的端部处设置有过水孔，污水通过过水孔从一个MABR处理单元41进入下一个MABR处理单元41；污水从进水口42进入，依次进入MABR厌氧处理单元、流经过水孔进入MABR缺氧处理单元、并且流经过水孔进入MABR好氧处理单元，可选的，可以在每个处理区域的过水孔附近设置至少一台推流器46。
MABR污水处理池4中相邻两个隔板上的过水孔可以分别地设置于相应隔板的相反的两个端部处，即过水孔可以交替地设置于所述隔板的上端部或下端部处，相应地，MABR污水处理池4中用隔板隔出的独立区域采用相反端部进出水的模式，即下进水上出水或上进水下出水，出水端可设置溢流堰，收集后排出进入下一道工序。
所述MABR厌氧处理单元、MABR缺氧处理单元和MABR好氧处理单元的内部均设置有若干个MABR模块处理单元411，所述MABR模块处理单元411用于污水的处理。
参见图1，所述污水处理池4设置有进水口42和出水口43，所述进水口42设置于首个MABR处理单元41(MABR厌氧处理单元)上，所述出水口43设置于最后一个MABR处理单元41(好氧处理单元)上。
图2为本公开实施例提供的污水处理池4的剖面结构示意图。
如图2所示，所述供气管路413可以由主供气管4131、支路气管4132和底部气管4133构成，所述支路气管4132和所述底部气管4133均可以与所述供气管路413相连通。
在本公开实施例提供的上述可选实施方式中，所述MABR处理单元41中还设置有固定支架45，多个MABR膜组件固定安装在一个固定支架45上，从而使MABR模块处理单 元411更为牢固的设置于MABR处理单元41中。
在本公开实施例提供的上述可选实施方式中，所述主供气管4131、所述支路气管4132和底部气管4133上还可以设置有阀门412，所述阀门412配置成控制支路气管4132和底部气管4133的进气量从而调节进入相应MABR处理单元的气体的量及压力。
在本公开实施例的一种可选实施方式中，所述MABR处理单元41中的底部气管4133还可以设置有曝气器414，所述曝气器414可以与底部气管4133相连通，并且所述曝气器414可以设置于MABR模块处理单元411的下方，可以通过对应的底部气管4133的阀门412控制曝气器414，使相应曝气器414间歇运行。
在本公开实施例的一种可选实施方式中，所述污水处理池4中还可以在MABR处理单元中设置至少一个推流器46，所述推流器46可以沿水流在该MABR处理单元中的流动方向设置在端部处、间隔设置，可选的，所述推流器46可以设置在相邻两个MABR处理单元的过水孔附近，所述推流器46配置成推动水流在污水处理池4中以及在相邻MABR处理单元之间的流动，从而加快污水的处理效果。
本公开实施例污水处理池4的具体实施方式为：
MABR污水处理池4可以由1个MABR厌氧处理单元、2个MABR缺氧处理单元和3个MABR好氧处理单元组成。经过预处理的污水(经过初次沉淀后)从MABR厌氧处理单元一端进入，流入端设置有进水布水器，MABR污水处理池4中用隔板隔出的独立区域采用相反端部进出水的模式，即下进水上出水或上进水下出水，水流依次进入MABR厌氧处理单元、MABR缺氧处理单元和MABR好氧处理单元，通过MABR膜表面附着的微生物膜对水体的污染物进行降解，从而使污水得到净化处理，经过MABR污水处理池4处理后进入到二次沉淀池及后续工艺中，出水端采用溢流堰等形式，收集出水。本公开实施例的具体实施过程中可以包括以下步骤：
(1)MABR厌氧处理单元内设置一个膜组件架，MABR膜组件根据设计数量均匀地固定在膜组件架上，MABR缺氧处理单元和MABR好氧处理单元内设置有与相应处理单元个数相对应的多个膜组件架，MABR膜组件分组固定在膜组件架上，根据设计计算将固定MABR膜组件的膜组件架放置于MABR缺氧处理单元和MABR好氧区处理单元。
(2)气源通过供气管路413供给，具体的，主供气管4131横向地沿MABR污水处理池4一侧延伸，在横向方向上依次经过MABR厌氧处理单元、MABR缺氧处理单元和MABR好氧处理单元；主供气管4131在相应的处理单元处设置有支气管路4132，所述支气管路4132沿纵向方向延伸与相应的MABR膜组件中的每个膜连通进而向其供气，所述支气管路设置有阀门412，通过控制相应阀门来调节各处理单元内的溶解氧含量，其中，MABR厌 氧处理单元的溶解氧含量可以为0～0.2mg/L，MABR缺氧处理单元的溶解氧含量可以为0.2～0.5mg/L，MABR好氧处理单元的溶解氧含量可以为1.0～3.0mg/L。
(3)底部气管4133与主供气管4131相连接，底部气管4133位于MABR膜组件的下方、在相应的处理区域即相应的MABR处理单元中延伸，所述底部气管4133上设置的曝气器414由底部气管对应的控制阀控制而可以间歇运行。MABR污水处理池4的每个处理区域用隔板44或隔墙隔开，如MABR厌氧处理单元中设置至少一个推流器46，所述推流器46可以沿水流在该MABR处理单元中的流动方向设置在端部处、间隔设置，可选的，所述推流器46可以设置在相邻两个MABR处理单元的过水孔附近，所述推流器46配置成推动水流在污水处理池4中以及在相邻MABR处理单元之间的流动，从而加快污水的处理效果。
(4)MABR好氧处理单元末端设置出水端的溢流堰，收集后下一道工艺处理单元。
如图3所示，本公开实施例提供的一种污水处理系统，所述污水处理系统可以包括管道连通的调节池1、预处理池2、初沉池3、本公开实施例提供的污水处理池4和二沉池5；
在本公开实施例提供的上述可选的实施方式中，所述上述污水处理池4和二沉池5之间还可以设置有加药装置6。
本公开实施例提供的所述污水处理系统可以包括上述污水处理池4，该处理系统通过加入MABR组件的方式，有效提高了现有不同溶解氧范围内的污水处理效率，实现了在不改变原有污水处理的基础上进行提标或增容的目的。
某城镇污水处理厂，处理水量为5000m 3/d，出水水质要求达到《城镇污水处理厂污染物排放标准》(GB18918-2002)一级B标准，处理工艺为A2O工艺，出水排入到附近的河道内，由于环境治理要求越来越严格，将此污水处理厂的排放标准提高到《城镇污水处理厂污染物排放标准》(GB18918-2002)一级A标准，即出水的主要水质指标达到COD≤50mg/L、氨氮≤5mg/L、TN≤15mg/L、TP≤0.5mg/L。对本污水处理厂进行改造，截取一部分的生化处理工艺，处理水量1000m 3/d进行改造，设置本公开实施例提供的MABR厌氧处理单元1个，MABR缺氧处理单元2个，MABR好氧处理单元4个，共植入MABR膜组件1400组，投放三个处理单元的比例为1:3:10，经改造处理后的出水主要指标达到COD≤45mg/L、氨氮≤4mg/L、TN≤15mg/L、TP≤0.5mg/L，能满足《城镇污水处理厂污染物排放标准》(GB18918-2002)一级A标准，因此能满足在不改变原有的池容，实现了提升水质的效果。
某城镇污水处理厂，处理水量为10000m 3/d，出水水质要求达到《城镇污水处理厂污染物排放标准》(GB18918-2002)一级A标准，处理工艺为A2O工艺，出水排入到附近的河道内，由于城镇污水的水量增加，进入污水处理厂的水量大增加，原有污水处理设施很难 能满足污水治理需求。根据需求，对本污水处理厂进行改造，截取一部分的生化处理工艺，处理水量2000m 3/d进行改造，设置本公开实施例提供的MABR厌氧处理单元2个，MABR缺氧处理单元3个，MABR好氧处理单元5个，共植入MABR膜组件3000组，投放三个处理单元的比例为1:3:11，将原有水量增加25％，经改造处理后的出水主要指标均能达到COD≤50mg/L、氨氮≤5mg/L、TN≤15mg/L、TP≤0.5mg/L，能满足《城镇污水处理厂污染物排放标准》(GB18918-2002)一级A标准，因此能满足在不改变原有的池容，实现了增容的效果。
综上所述，本公开实施例提供的污水处理池4通过设置有若干个MABR模块处理单元411的MABR处理单元41对污水进行处理，同时，所述MABR处理单元41中还设置有供气管路413，所述供气管路413上设置有阀门412配置成控制各MABR处理单元41的溶解氧含量，进而有效提高了现有不同溶解氧范围内污水处理单元的污水处理效率，进而实现了在不改变原有污水处理设施占地的基础上进行提标或增容的目的。
最后应说明的是：以上各实施例仅用以说明本公开的技术方案，而非对其限制；尽管参照前述各实施例对本公开进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本公开各实施例技术方案的范围。
工业实用性：
本公开实施例提供的所述污水处理系统可以包括本公开实施例提供的污水处理池4，该处理系统通过加入MABR组件的方式，有效提高了现有不同溶解氧范围内的污水处理效率，实现了在不改变原有污水处理的基础上进行提标或增容的目的。

Claims (10)

  1. 一种膜曝气生物膜反应器(MABR)污水处理池，其特征在于，所述污水处理池包括相互连通的MABR厌氧处理单元、MABR缺氧处理单元和MABR好氧处理单元中的至少两个；
    所述MABR厌氧处理单元、MABR缺氧处理单元和MABR好氧处理单元的内部均设置有若干个MABR模块处理单元，所述MABR模块处理单元以即用即放形式放置于MABR厌氧处理单元、MABR缺氧处理单元和MABR好氧处理单元中用于污水的处理；
    所述MABR模块处理单元主要由MABR膜组件与膜组件架及相应管线控制阀门组成。
  2. 根据权利要求1所述的MABR污水处理池，其特征在于，所述MABR厌氧处理单元、MABR缺氧处理单元和MABR好氧处理单元均连通有供气管路，所述供气管路配置成提供MABR模块处理单元在污水处理时所需的气体。
  3. 根据权利要求1和2中任一项所述的MABR污水处理池，其特征在于，所述供气管路上设置有阀门，所述阀门配置成调节进入所述MABR厌氧处理单元、所述MABR缺氧处理单元或所述MABR好氧处理单元的气体的量及压力。
  4. 根据权利要求2至3中任一项所述的MABR污水处理池，其特征在于，所述供气管路包括主供气管、支路气管和底部气管，所述支路气管和所述底部气管均与所述供气管路相连通，所述支路气管和所述底部气管上设置有阀门用以控制调节气流。
  5. 根据前述权利要求中任一项所述的MABR污水处理池，其特征在于，所述MABR模块处理单元通过所述支路气管以串联或并联的方式相连通。
  6. 根据前述权利要求中任一项所述的MABR污水处理池，其特征在于，所述MABR模块处理单元中的底部气管上还设置有曝气器，所述曝气器与底部气管相连通，由底部气管对应的控制阀控制曝气器的使用，所述曝气器间歇式运行。
  7. 根据权利要求前述权利要求中任一项所述的MABR污水处理池，其特征在于，所述MABR厌氧处理单元的溶解氧含量0～0.2mg/L；
    所述MABR缺氧处理单元的溶解氧含量为0.2～0.5mg/L；
    所述MABR好氧处理单元的溶解氧含量为1.0～3.0mg/L。
  8. 一种膜曝气生物膜反应器(MABR)污水处理系统，其特征在于，所述MABR污水处理系统包括权利要求1～7任一项所述的MABR污水处理池。
  9. 根据权利要求8所述的MABR污水处理系统，其特征在于，所述污水处理系统包括依次连通的调节池、预处理池、初沉池、权利要求1～7中任一项所述的MABR污水处理池、二沉池及加药装置。
  10. 一种使用根据权利要求8或9所述的膜曝气生物膜反应器(MABR)污水处理系统的方法，其特征在于，具体包括以下步骤：
    (1)将MABR模块处理单元以单一模块或多模块形式植入到原有或新建的污水处理厂的厌氧区、缺氧区和好氧区；
    (2)通过调节MABR污水处理池中的溶解氧含量达到处理区域实现厌氧/缺氧/好氧的溶解氧要求，或调整各处理单元的匹配；
    (3)利用MABR膜组件的中空纤维膜外表面形成微生物膜结构实现在同一MABR污水处理池中同步硝化反硝化作用，从而使污水得到净化。
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