CN116750925A - A method for treating industrial wastewater containing refractory organic matter - Google Patents

A method for treating industrial wastewater containing refractory organic matter Download PDF

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CN116750925A
CN116750925A CN202310959191.3A CN202310959191A CN116750925A CN 116750925 A CN116750925 A CN 116750925A CN 202310959191 A CN202310959191 A CN 202310959191A CN 116750925 A CN116750925 A CN 116750925A
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carbon
iron
anaerobic
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membrane
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黄贞岚
江成
桂双林
吴晓
吴莉
龚媛媛
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ENERGY RESEARCH INSTITUTE OF JIANGXI ACADEMY OF SCIENCES
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F2001/007—Processes including a sedimentation step
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • 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

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

本发明一种含难降解有机物的工业废水处理方法采用纳米铁/炭微电解预处理和厌氧膜处理组合方式处理含难降解有机物的废水，处理过程涉及工业废水中微电解氧化、厌氧消化和膜过滤。本发明采用具有更强氧化性能的纳米铁/炭作为微电解材料，能明显提高难降解有机污染物的去除率，厌氧反应不需要曝气，能耗低。通过纳米铁/炭微电解和厌氧膜处理组合技术，工艺流程简单，运行成本低及难降解有机污染物去除率高。

The present invention uses a combined method of nano-iron/carbon micro-electrolysis pretreatment and anaerobic membrane treatment to treat wastewater containing refractory organic matter. The treatment process involves micro-electrolysis oxidation and anaerobic digestion in industrial wastewater. and membrane filtration. The present invention uses nano-iron/carbon with stronger oxidation properties as micro-electrolytic materials, which can significantly improve the removal rate of refractory organic pollutants. The anaerobic reaction does not require aeration and has low energy consumption. Through the combined technology of nano-iron/carbon micro-electrolysis and anaerobic membrane treatment, the process flow is simple, the operating cost is low and the removal rate of refractory organic pollutants is high.

Description

Industrial wastewater treatment method containing refractory organic matters
Technical Field
The invention relates to a method for treating industrial wastewater containing refractory organic matters, and particularly belongs to the technical field of industrial wastewater treatment.
Background
The wastewater in the industrial park is generally treated intensively at present, so that the industrial wastewater contains complex components and refractory organic matters, the traditional wastewater treatment process mainly comprises a regulating tank, precipitation, hydrolytic acidification, A/O, secondary precipitation and disinfection, the effect of removing the refractory organic matters is not ideal in the actual process, and in order to further improve the removal rate of the refractory organic matters, flocculation decolorization and mechanical filtration (quartz sand filter tank) +activated carbon adsorption, fenton (or ozone oxidation) +coagulation precipitation+activated carbon adsorption treatment, supercritical oxidation treatment and the like are additionally needed, so that the whole process flow is seen, the process is complex, the operation cost is high, and the actual operation is difficult to maintain.
For this reason, industrial wastewater is treated by iron/carbon micro-electrolysis in the industry, for example, fe/C composite material is prepared by roasting, and then industrial printing and dyeing wastewater is treated by Fe/C composite material and Membrane Bioreactor (MBR) combined process; in addition, iron powder and carbon sintered filler are adopted, and wastewater containing aromatic heterocyclic medicaments is treated through iron/carbon micro-electrolysis and Fenton oxidation technology. However, membrane Bioreactors (MBR) require aeration and the operating costs remain high, while the oxidation performance of iron powder and carbon sintered fillers for degrading organics in wastewater is still not ideal. Therefore, aiming at the problems existing in industrial wastewater treatment, the invention provides a nano iron/carbon and anaerobic membrane combined technology, wherein nano iron/carbon is used as a micro-electrolysis material, has strong oxidation performance, has better effect on removing organic pollutants, does not need aeration in anaerobic reaction, has low energy consumption, simple process flow and low operation cost, and is easy to popularize and apply.
Disclosure of Invention
Aiming at the problems existing in the industrial wastewater treatment, the invention provides a method for treating industrial wastewater containing refractory organic matters.
The invention provides an industrial wastewater treatment method containing refractory organic matters, which adopts a combined mode of nano iron/carbon micro-electrolysis pretreatment and anaerobic membrane treatment to treat wastewater containing refractory organic matters, and the treatment process relates to industrial wastewater micro-electrolysis oxidation, anaerobic digestion and membrane filtration, and comprises the following specific steps:
step 1: industrial waste water micro-electrolysis oxidation
Industrial wastewater containing refractory organic matters enters a nano iron/carbon micro-electrolysis pretreatment device, and after suspended matters are removed by filtering the wastewater through a Dan sand layer, the wastewater flows through the nano iron/carbon layer to carry out micro-electrolysis reaction; intermittent feeding is adopted in the micro-electrolysis reaction process, the pH is controlled to be 5.5-7.0, and the refractory organic matters are converted into the organic matters which are easy to degrade through internal circulation of a circulating pump for 4 hours;
step 2: anaerobic digestion and membrane filtration
The industrial wastewater treated in the step 1 enters an anaerobic membrane treatment device, the anaerobic digestion reaction temperature is controlled to be 36 ℃, the pH value is controlled to be 7.0, the anaerobic digestion reaction is carried out for 8 hours, and the anaerobic organisms further digest and degrade organic matters in the wastewater to generate methane and carbon monoxide gas; the industrial wastewater after anaerobic digestion is subjected to gas, liquid and solid three-phase separation and is discharged after reaching the standard after membrane filtration.
The mass ratio of the iron to the carbon in the nano iron/carbon is 1:70.
The nano iron/carbon micro-electrolysis pretreatment device consists of a container (1), a feed pipe (2), a Dan sand layer (3), a nano iron/carbon layer (4), a water outlet pipe (5), a Dan sand layer baffle (6), a nano iron carbon lower baffle (7) and a nano iron carbon upper baffle (8); wherein, the bottom sets up inlet pipe (2) in container (1), and the top side sets up outlet pipe (5), and the mid portion sets up stone sand bed baffle (6), nano iron carbon lower baffle (7) and nano iron carbon upper baffle (8).
The anaerobic membrane treatment device is cylindrical and consists of an anaerobic reaction zone (9) and a membrane separation zone (10); the upper part is a membrane separation zone (10) and is composed of a flat membrane (17), an exhaust pipe (18) and an exhaust pipe (19), wherein the flat membrane (17) is made of PVDF, and the pore diameter of the membrane is 0.1-0.2um; the lower part is an anaerobic reaction zone (9) which consists of a water inlet pipe (11), a No. 1 three-phase separator (12), a No. 2 three-phase separator upper part (13), a No. 2 gas rising pipe (14), a No. 1 gas rising pipe (15), a wastewater rising pipe (16) and a sludge return pipe (20); the No. 1 three-phase separator (12) and the No. 2 three-phase separator (13) are respectively arranged at the middle part of the anaerobic reaction zone (9); one end of the wastewater rising pipe (16) is communicated with the top of the anaerobic reaction zone (9), and the other end is communicated with the bottom of the membrane separation zone (10); one end of a No. 2 gas rising pipe (14) is communicated with a No. 2 three-phase separator (13), and the other end is communicated with a membrane separation zone (10); one end of a No. 1 gas rising pipe (15) is communicated with a No. 1 three-phase separator (12), and the other end is communicated with a membrane separation zone (10); the water inlet pipe (11) is arranged at the bottom of the anaerobic reaction zone (9); the exhaust pipe (18) is communicated with the top of the membrane separation zone (10); one end of the water outlet pipe (19) is communicated with the flat membrane (17).
The invention relates to an industrial wastewater treatment principle: the wastewater undergoes micro-electrolysis reaction in the nano iron-carbon layer, and countless micro-primary cells are formed in the wastewater due to the electrode potential difference between the iron and the carbon. The micro-primary batteries take iron with low potential as an anode, carbon with high potential as a cathode, and perform electrolytic reaction in aqueous solution, so that nano iron has stronger oxidation effect than common iron materials, and can oxidize refractory organic matters; anaerobic membrane technology is the coupling of anaerobic biological reaction and membrane, and anaerobic microorganisms digest, absorb and degrade organic pollutants in wastewater into methane, carbon monoxide and the like, so as to remove pollutants in the wastewater; the membrane fly-away is that the membrane separates the waste water mixture under the pushing of external force, and the sludge and suspended matters in the waste water are trapped.
The three-phase separator consists of a sedimentation area and a gas chamber, and has the function of separating gas (methane), liquid (wastewater) and sludge. The gas (methane) enters the air chamber, and the sludge is precipitated in the precipitation zone and flows back to the reaction zone. And discharging the wastewater after precipitation and clarification out of the reactor as treated water. The air chamber is also called a gas-collecting hood, and has the function of collecting the generated biogas and guiding the biogas out of the air chamber to an exhaust pipe.
The invention has the beneficial effects that: the invention adopts nano iron/carbon with stronger oxidation performance as the micro-electrolysis material, can obviously improve the removal rate of refractory organic pollutants, does not need aeration in anaerobic reaction, and has low energy consumption. The combined technology of nano iron/carbon micro-electrolysis and anaerobic membrane treatment has the advantages of simple process flow, low operation cost and high removal rate of refractory organic pollutants.
Drawings
Fig. 1: the invention relates to a wastewater treatment process flow chart containing refractory organic matters;
fig. 2: the nano iron/carbon micro-electrolysis pretreatment device is structurally schematic;
fig. 3: the structure of the anaerobic membrane treatment device is schematically shown;
fig. 4: schematic elevation of the flat membrane structure of the invention;
fig. 5: schematic side view of the flat membrane structure of the invention;
fig. 6: the cross-section of the No. 2 three-phase separator of the invention;
fig. 7: the invention No. 2 three-phase separator is seen from the top;
fig. 8: the three-phase separator of the invention No. 1 is a sectional view;
fig. 9: the top view of the three-phase separator No. 1 of the invention;
in the figure: 1. a container; 2. a feed pipe; 3. dan sand layer; 4. a nano iron-carbon layer; 5. a water outlet pipe; 6. dan sand layer separator; 7. a nano iron/carbon layer lower separator; 8. a separator on the nano iron/carbon layer; 9. an anaerobic reaction zone; 10. a membrane separation zone; 11. a feed pipe; 12. a No. 1 three-phase separator; 13. a No. 2 three-phase separator; 14. a No. 2 gas riser; 15. a gas riser of No. 1; 16. a waste water rising pipe; 17. a flat membrane; 18. an exhaust pipe; 19. a water outlet pipe; 20. a sludge return pipe; 21. a No. 1 air chamber; 22. a precipitation zone 1; 23. a No. 2 air chamber; 24. precipitation zone No. 2.
Detailed Description
Example 1
Preparation of nano iron/carbon
15g of ferric nitrate is weighed, added into 70wt% ethanol solution, stirred until the ferric nitrate is completely dissolved, then the volume is fixed to 300mL, ferric nitrate ethanol solution is prepared, 150g of active carbon is added into 300mL of ferric nitrate ethanol solution, the active carbon is oscillated for 3 hours at constant temperature in a shaking table, and then the active carbon loaded with iron is obtained through oven drying.
Weighing 6g of polyethylene glycol-4000, dissolving with 120mL of ultrapure water, adding 144g of activated carbon loaded with iron, placing in a constant temperature shaking table for shaking for 1h, and then adding 300mL of newly prepared 1mol/L NaBH dropwise with stirring 4 And (3) placing the solution in a constant temperature shaking table to continue shaking for 1h, cleaning with oxygen-removed ultrapure water for 3 times, and drying in an oven to obtain the nano iron/carbon with the mass ratio of iron to carbon being 1:70.
Example 2
Preparation of nano iron-carbon micro-electrolysis pretreatment device
The nanometer iron-carbon micro-electrolysis pretreatment device is cylindrical, and the size design is as follows: diameter 10cm and height 50 cm.
Consists of a container (1), a feed pipe (2), a Dan sand layer (3), a nano iron/carbon layer (4), a water outlet pipe (5), a Dan sand layer partition plate (6), a nano iron carbon lower partition plate (7) and a nano iron carbon upper partition plate (8).
The bottom of the container (1) is provided with a feed pipe (2), the side surface of the top is provided with a water outlet pipe (5), the middle part is provided with a stone sand layer baffle (6), a nano iron-carbon lower baffle (7) and a nano iron-carbon upper baffle (8), and then the stone sand and the nano iron/carbon are respectively filled. The filling height of the Dan sand layer (3) is controlled to be 15cm, and the particle size of quartz sand is 0.6-1.0mm; the filling height of the nano iron/carbon layer is controlled to be 10cm.
Example 3
Preparation of anaerobic membrane treatment device
The anaerobic membrane treatment device consists of an anaerobic reaction zone (9) and a membrane separation zone (10).
The upper part is a membrane separation zone (10) which is cylindrical, has the diameter of 25 cm and the height of 40 cm.
The membrane separation zone (10) is composed of a flat membrane (17), an exhaust pipe (18) and an outlet pipe (19). The flat membrane (17) is made of PVDF, and the pore diameter of the membrane is 0.1-0.2um.
The lower part is an anaerobic reaction zone (9) which is cylindrical, has the diameter of 14 cm and the height of 80 cm.
The anaerobic biological reaction zone (9) is composed of a water inlet pipe (11), a No. 1 three-phase separator (12), a No. 2 three-phase separator (13), a No. 2 gas rising pipe (14), a No. 1 gas rising pipe (15), a wastewater rising pipe (16) and a sludge return pipe (20). The No. 1 three-phase separator (12) and the No. 2 three-phase separator (13) are respectively arranged at the middle part of the anaerobic reaction zone (9).
The anaerobic reaction zone (9) is communicated with the membrane separation zone (10) through a wastewater rising pipe (16), a No. 2 gas rising pipe (14), a No. 1 gas rising pipe (15) and a sludge return pipe (20); the water inlet pipe (11) is arranged at the bottom of the anaerobic reaction zone (9),
one end of the wastewater rising pipe (16) is communicated with the top of the anaerobic reaction zone (9), and the other end is communicated with the bottom of the membrane separation zone (10); one end of a No. 2 gas rising pipe (14) is communicated with a No. 2 three-phase separator (13), and the other end is communicated with a membrane separation zone (10); one end of a No. 1 gas rising pipe (15) is communicated with a No. 1 three-phase separator (12), and the other end is communicated with a membrane separation zone (10); the exhaust pipe (18) is communicated with the top of the membrane separation zone (10); one end of the water outlet pipe (19) is communicated with the flat membrane (17).
Example 4
Waste water containing refractory organic matters enters the nano-iron/carbon micro-electrolysis pretreatment device through a feed pipe (2), flows into a Dan sand layer (3) through holes of a Dan sand layer partition board (6), filters to remove suspended matters, flows into a nano-iron/carbon layer (4) through holes of a nano-iron/carbon layer lower partition board (7), and carries out micro-electrolysis reaction.
Micro-electrolysis reaction conditions: intermittent feeding is adopted, the feeding amount is 3L, the pH value is 5.5, and then the waste water is circulated in a nano iron-carbon micro-electrolysis pretreatment device for 4 hours through a circulating pump, so that the organic matters which are difficult to degrade in the waste water are converted into organic matters which are easy to degrade.
And then, the wastewater flows out of the nano-iron/carbon micro-electrolysis pretreatment device from the water outlet pipe (5) through holes of the baffle plate (8) on the nano-iron/carbon layer and flows into the anaerobic membrane treatment device through the feed pipe (11).
In the anaerobic membrane treatment device, the temperature of an anaerobic reaction zone (9) is controlled at 36 ℃, the pH is 7.0, the feeding flow is 3L/h, the feeding is carried out for 1 hour, the wastewater is subjected to microbial anaerobic digestion in the anaerobic reaction zone (9) for 8 hours, and the anaerobic organisms digest and degrade organic matters degraded in the wastewater to generate methane and carbon monoxide gas.
And the waste water after digestion and degradation of organic matters is subjected to gas, liquid and solid three-phase separation on a No. 1 three-phase separator (12) and a No. 2 three-phase separator (13). The gas enters the membrane separation zone (10) through a gas chamber No. 1 (21) and a gas chamber No. 2 (23) from a gas rising pipe No. 1 (15) and a gas rising pipe No. 2 (14) and is discharged from an exhaust pipe (18); the wastewater enters the membrane separation zone (10) through a wastewater rising pipe (16), is filtered by a flat membrane (17), and solids such as sludge, suspended solids and the like are retained, and the filtered wastewater is discharged through a water outlet pipe (19).
The method is characterized in that the wastewater containing refractory organic matters is treated by a combined mode of a nano iron-carbon micro-electrolysis pretreatment device and an anaerobic membrane treatment device, and the COD of the wastewater is equal to 283 mg.L initially -1 Degradation to 34 mg.L -1 The COD removal rate is 88%, the initial dilution factor of chromaticity is 7 times, the initial dilution factor is reduced to 3.5 times, the chromaticity is removed by 50%, and the SS content of suspended substances in the effluent is not detected.
Compared with the method for treating the wastewater containing the refractory organic matters by adopting the anaerobic membrane treatment device, the COD removal rate of the wastewater is only 36%. The reason is that the nano iron/carbon micro-electrolysis reaction changes the structure of the organic matters difficult to degrade, generates organic matters easy to degrade by anaerobic microorganisms, and improves the biochemical performance of the wastewater and the removal effect of pollutants. After a small part of sludge flows into the membrane separation zone (10), the sludge flows back to the bottom of the anaerobic reaction zone (9) through the sludge return pipe (20), and after 150 days of operation, the flat membrane (17) is not blocked, and as the flat membrane (17) entraps more anaerobic microorganisms, the blockage of the concentration of ESP and SMP in the sludge to the flat membrane (17) is reduced. The nano iron/carbon does not harden, mainly because the nano iron is loaded on the activated carbon.

Claims (4)

1.一种含难降解有机物的工业废水处理方法，其特征在于：所述的工业废水处理方法采用纳米铁/炭微电解预处理和厌氧膜处理组合方式，处理含难降解有机物的废水，处理过程涉及工业废水微电解氧化、厌氧消化和膜过滤，具体步骤如下：1. An industrial wastewater treatment method containing refractory organic matter, characterized in that: the industrial wastewater treatment method adopts a combination of nano-iron/carbon micro-electrolysis pretreatment and anaerobic membrane treatment to treat wastewater containing refractory organic matter, The treatment process involves micro-electrolytic oxidation, anaerobic digestion and membrane filtration of industrial wastewater. The specific steps are as follows: 步骤1：工业废水微电解氧化Step 1: Micro-electrolytic oxidation of industrial wastewater 含难降解有机物的工业废水进入纳米铁/炭微电解预处理装置中，废水经石碤砂层过滤去除悬浮物后，流经纳米铁/炭层进行微电解反应；微电解反应过程中采取间歇进料，pH控制为5.5-7.0，通过循环泵内循环4小时，将难降解有机物转化为易于降解的有机物；Industrial wastewater containing refractory organic matter enters the nano-iron/carbon micro-electrolysis pretreatment device. After the wastewater is filtered through the stone sand layer to remove suspended solids, it flows through the nano-iron/carbon layer for micro-electrolysis reaction; intermittent steps are taken during the micro-electrolysis reaction process. Feed, the pH is controlled at 5.5-7.0, and circulate through the circulation pump for 4 hours to convert refractory organic matter into easily degradable organic matter; 步骤2：厌氧消化和膜过滤Step 2: Anaerobic digestion and membrane filtration 经过步骤1处理后的工业废水进入厌氧膜处理装置中，控制厌氧消化反应温度36℃，pH为7.0，厌氧消化反应8h，厌氧生物将废水中的有机物进一步消化降解，产生甲烷和一氧化碳气体；厌氧消化后的工业废水经过气、液、固三相分离后，再经膜过滤后达标排出。The industrial wastewater treated in step 1 enters the anaerobic membrane treatment device. The anaerobic digestion reaction temperature is controlled to 36°C, the pH is 7.0, and the anaerobic digestion reaction lasts for 8 hours. The anaerobic organisms further digest and degrade the organic matter in the wastewater to produce methane and Carbon monoxide gas; the industrial wastewater after anaerobic digestion is separated into three phases of gas, liquid and solid, and then filtered through membranes before being discharged up to standard. 2.根据权利要求1所述的一种含难降解有机物的工业废水处理方法，其特征在于：所述的纳米铁/炭中的铁炭质量比例为1:70。2. An industrial wastewater treatment method containing refractory organic matter according to claim 1, characterized in that: the mass ratio of iron to carbon in the nano-iron/carbon is 1:70. 3.根据权利要求1所述的一种含难降解有机物的工业废水处理方法，其特征在于：所述的纳米铁/炭微电解预处理装置由容器（1）、进料管（2）、石碤砂层（3）、纳米铁/炭层（4）、出水管（5），石碤砂层隔板（6）、纳米铁碳下隔板（7）和纳米铁碳上隔板（8）构成；其中，在容器（1）中底部设置进料管（2），顶部侧面设置出水管（5），中间部分设置石碤砂层隔板（6）、纳米铁碳下隔板（7）和纳米铁碳上隔板（8）。3. An industrial wastewater treatment method containing refractory organic matter according to claim 1, characterized in that: the nano-iron/carbon micro-electrolysis pretreatment device consists of a container (1), a feed pipe (2), Shiqi sand layer (3), nano-iron/carbon layer (4), water outlet pipe (5), Shiqi sand layer partition (6), nano-iron carbon lower partition (7) and nano-iron carbon upper partition ( 8) Composition; wherein, a feed pipe (2) is provided at the bottom of the container (1), an outlet pipe (5) is provided at the top side, and a stone and sand layer partition (6) and a nano-iron carbon lower partition (6) are provided in the middle part. 7) and nano-iron carbon upper separator (8). 4.根据权利要求1所述的一种含难降解有机物的工业废水处理方法，其特征在于：所述的厌氧膜处理装置呈圆柱形，由厌氧反应区（9）和膜分离区（10）两部分构成；上部分为膜分离区（10），由平板膜（17），排气管（18）和出水管（19）构成，平板膜（17）的材料为PVDF，膜孔径0.1-0.2um；下部分为厌氧反应区（9），由进水管（11）、1号三相分离器（12）、2号三相分离器上（13）、2号气体上升管（14）、1号气体上升管（15）、废水上升管（16）和污泥回流管（20）构成；1号三相分离器（12）、2号三相分离器上（13）分别设置于厌氧反应区（9）中间部位置；废水上升管（16）一端与厌氧反应区（9）的顶部相连通，另一端与膜分离区（10）的底部相连通；2号气体上升管（14）一端与2号三相分离器上（13）相连通，另一端与膜分离区（10）相连通；1号气体上升管（15）一端与1号三相分离器（12）相连通，另一端与膜分离区（10）相连通；进水管（11）设置在厌氧反应区（9）的底部；排气管（18）与膜分离区（10）的顶部相连通；出水管（19）一端与平板膜（17）联通。4. An industrial wastewater treatment method containing refractory organic matter according to claim 1, characterized in that: the anaerobic membrane treatment device is cylindrical and consists of an anaerobic reaction zone (9) and a membrane separation zone ( 10) It is composed of two parts; the upper part is the membrane separation area (10), which is composed of a flat membrane (17), an exhaust pipe (18) and an outlet pipe (19). The material of the flat membrane (17) is PVDF, and the membrane pore size is 0.1 -0.2um; the lower part is the anaerobic reaction zone (9), which consists of the water inlet pipe (11), the No. 1 three-phase separator (12), the No. 2 three-phase separator (13), and the No. 2 gas rising pipe (14 ), No. 1 gas rising pipe (15), wastewater rising pipe (16) and sludge return pipe (20); No. 1 three-phase separator (12) and No. 2 three-phase separator (13) are respectively arranged on The middle part of the anaerobic reaction zone (9); one end of the wastewater rising pipe (16) is connected to the top of the anaerobic reaction zone (9), and the other end is connected to the bottom of the membrane separation zone (10); No. 2 gas rising pipe (14) One end is connected to the No. 2 three-phase separator (13), and the other end is connected to the membrane separation area (10); one end of the No. 1 gas riser (15) is connected to the No. 1 three-phase separator (12) The other end is connected to the membrane separation zone (10); the water inlet pipe (11) is set at the bottom of the anaerobic reaction zone (9); the exhaust pipe (18) is connected to the top of the membrane separation zone (10); the outlet pipe (11) is connected to the top of the membrane separation zone (10); One end of the water pipe (19) is connected with the flat membrane (17).
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