CN108773986B - Sewage and wastewater treatment method of cloth bioreactor and microfiltration membrane filter - Google Patents
Sewage and wastewater treatment method of cloth bioreactor and microfiltration membrane filter Download PDFInfo
- Publication number
- CN108773986B CN108773986B CN201810736214.3A CN201810736214A CN108773986B CN 108773986 B CN108773986 B CN 108773986B CN 201810736214 A CN201810736214 A CN 201810736214A CN 108773986 B CN108773986 B CN 108773986B
- Authority
- CN
- China
- Prior art keywords
- membrane
- cloth
- microfiltration membrane
- bioreactor
- mbr
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
- C02F3/1273—Submerged membrane bioreactors
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Landscapes
- 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)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
A sewage and wastewater treatment method of a cloth bioreactor and a microfiltration membrane filter is characterized in that sewage and wastewater reach the standard after being sequentially combined and treated by a cloth bioreactor process and a microfiltration membrane filter process; meanwhile, an MBR membrane reaction assembly of the cloth bioreactor process and a microfiltration membrane core assembly of the microfiltration membrane filter process are cleaned by an online cleaning process, and the MBR membrane reaction assembly and the microfiltration membrane core assembly adopt an integrated device, so that the integral device has a function of regular offline cleaning. The invention has the obvious advantages of small occupied area, simple flow, high effluent quality, long sludge retention time, low yield of polluted sludge, reasonable, efficient and stable standard treatment of sewage and wastewater, low engineering cost of MBR membrane reaction components, low engineering operation cost, high cost performance and the like.
Description
Technical Field
The invention belongs to the technical field of sewage and wastewater treatment processes.
Background
The membrane-bioreactor process, i.e. MBR process, is a new sewage and wastewater treatment technology organically combining membrane separation technology and biotechnology, most of filter media in the currently industrially applied membrane bioreactor are hollow fiber membranes or flat membranes, the pore diameter of the filter media is 0.1-0.4 um, active sludge and macromolecular organic matters in a biochemical reaction tank can be retained, the concentration of the active sludge is greatly improved, the Hydraulic Retention Time (HRT) and the Sludge Retention Time (SRT) can be respectively controlled, a secondary sedimentation tank is omitted, and then substances which are biologically degraded and difficultly degraded by the active sludge in the reactor on the organic matters in the sewage and wastewater can be continuously reacted and degraded in the reaction tank, and the degraded water is filtered by a membrane device to enable the water to reach the standard for recycling or discharge. Therefore, the membrane-bioreactor technology greatly strengthens the function of the bioreactor through a membrane separation technology, can obtain clear and up-to-standard treated water in a certain period of operation, and further has the following advantages or disadvantages:
1. due to the interception function of the membrane, the high-concentration microbial biomass is maintained in the reactor, and the biochemical efficiency is improved;
2. the membrane separation can lead the microorganisms to be completely intercepted in the bioreactor, realize the complete separation of the Hydraulic Retention Time (HRT) and the Sludge Retention Time (SRT) of the reactor, and simultaneously realize short HRT and long SRT (or long sludge discharge period), thereby having the functions of high volume load and strong load impact resistance;
3. in the operation process, the membrane is easy to be polluted, the reduction speed of the membrane flux is fast, and the membrane aperture is 0.1-0.4 um, so that the deposition of particles on the membrane surface, bacteria, macromolecules and the like on the membrane surface are adsorbed or enter the membrane material, or the blockage of the membrane aperture occurs. If the water is not cleaned and maintained in time, the water yield is reduced, the effluent quality is unstable and reaches the standard, the service life of the membrane material is shortened, the inconvenience is brought to the operation and maintenance management, and the operation cost is high;
4. most membrane separation materials in a membrane bioreactor for industrial application at present are hollow fiber membranes or flat sheet membranes, the membrane pore size of the membrane is 0.1 to 0.4um, and the operation flux of membrane elements is, for example, 10L/square meter and h-50L/square meter, obviously, because the water yield of the membrane elements is low, when engineering design and sewage and wastewater treatment are implemented, the required membrane area number needs to be matched in a manner that the membrane elements are accumulated in a proportional manner, namely, the smaller the membrane pore size, the more membrane elements are accumulated to form the required membrane area number, the water yield (membrane flux) needed by engineering design and implementation can be met, so that the manufacturing cost and the engineering cost of the membrane separation materials are high, and the cost performance of the MBR is poor, thus preventing the wide application and use value thereof.
Disclosure of Invention
The invention aims to overcome the defects of the prior sewage and wastewater treatment process method and provide a sewage and wastewater treatment method which has low manufacturing cost and low operating cost and can reasonably, efficiently and stably treat the sewage to reach the standard.
The process method is realized by the following technical scheme.
The invention combines the biological reactor process and the micro-filtration membrane filter process to treat the sewage and the wastewater in sequence and then the effluent reaches the standard; meanwhile, an MBR membrane reaction assembly of the cloth bioreactor process and a microfiltration membrane core assembly of the microfiltration membrane filter process are cleaned by an online cleaning process, and the MBR membrane reaction assembly and the microfiltration membrane core assembly adopt an integrated device, so that the integral device has a function of regular offline cleaning.
In the process link of the cloth bioreactor, a reaction device arranged in a biological reaction tank of the cloth bioreactor comprises a membrane reaction component immersed in water in the tank, the membrane aperture is 5-38 um, the material adopts a combined industrial filter cloth membrane, and the membrane is formed by combining MBR membrane reaction components.
In the process link of the microfiltration membrane filter, the device arranged in the microfiltration membrane filter tank comprises a microfiltration membrane core component, an MBR (membrane bioreactor) membrane reaction component of the biological reaction tank is communicated with the microfiltration membrane component in the microfiltration membrane filter tank, the microfiltration membrane component with the membrane aperture of 0.1-5 um in the microfiltration membrane filter tank is made of a combined industrial filter cloth membrane.
The front vertical surface structures of the two microfiltration membrane components have the characteristic of flexibility at the matching positions of the two vertical surfaces of all MBR membrane elements in the MBR membrane reaction component, so that the interference sealing matching of the matching positions is ensured.
The MBR membrane reaction component is formed by combining a plurality of MBR membrane elements and membrane hanging plates which are immersed in the biological reaction tank, and the MBR membrane elements with the membrane aperture of 5-38 um are formed by overlapping and piling at least 2 layers of industrial filter cloth such as polyester fabric, nylon woven fabric and the like and combining reinforcing steel bars.
The microfiltration membrane core assembly is formed by combining a microfiltration membrane core immersed in the filter tank and a steel support frame, a mass transfer and support device with a rigid pore plate or a rigid grating is adopted as a steel skeleton, at least 2 layers of industrial filter cloth such as polyester fabric, nylon woven fabric and the like are tightly wound on the steel skeleton 10.1.1.2 to form the microfiltration membrane core with the membrane aperture of 0.1-5 um in an overlapped and stacked mode, and each MBR membrane element of an MBR membrane reaction assembly of the cloth biological reaction tank is communicated with the microfiltration membrane core assembly of the microfiltration membrane filter tank.
The invention combines the operation advantages of the prior process units and devices thereof, adds some facilities, and has the advantages of orderly continuity, plug flow progressiveness and compact arrangement to carry out efficient and feasible treatment on the sewage, thereby having good cost performance and realizing efficient and stable operation treatment.
The operation of the cloth (MBR membrane) bioreactor process of the invention is that a liquid level controller of an adjusting tank instructs a lifting water pump to start and stop through a PLC control system, and sewage and wastewater of the adjusting tank continuously flows into a reaction tank of the cloth (MBR membrane) bioreactor through the lifting water pump to carry out aerobic biochemical reaction and membrane separation filtration treatment, so that the treatment aims at effectively degrading the concentration of organic matters and separating pollutants more than 5um-38um through a membrane (because the particle size of most particles of activated sludge is more than 40um, the activated sludge is intercepted); the MBR membrane element material price of the membrane aperture of 38-5 um formed by overlapping and stacking cheap combined industrial filter cloth (terylene cloth, nylon woven cloth and the like) is lower than that of a common MBR membrane element (a hollow fiber membrane or a flat membrane with the membrane aperture of 0.1-0.4 um), and the water yield of the MBR membrane element is higher than that of the common MBR membrane element, so that the number of the MBR membrane elements is greatly reduced, and the combined industrial filter cloth has the advantages of smooth surface, long service life and the like besides better physical and chemical properties (wear resistance, high strength, corrosion resistance, acid resistance and the like) and low price, so the combined industrial filter cloth also has the characteristic of good cost performance, and can realize the reduction of the manufacturing cost and the engineering cost of the cloth (MBR) bioreactor; if other processes are arranged before the cloth (MBR membrane) bioreactor process, besides the processes integrating aerobic or anoxic biochemical reactions and other performances, the process has the functions of degrading the concentration, converting the concentration into good biodegradability and the like of pollutants, difficult biodegradability and the like of sewage and wastewater entering the cloth (MBR membrane) bioreactor process, and particularly can greatly reduce the pollution degree of the MBR membrane element and the MBR membrane element, so that the stable high-flux produced water of the MBR membrane reaction assembly can be realized, the service life of the MBR membrane reaction assembly is prolonged, and the operation cost of membrane cleaning and membrane replacement is reduced.
The operation of the microfiltration membrane filter process of the invention is that a liquid level controller instructs a self-priming water pump to start and stop through a PLC control system, MBR membrane reaction components of a reaction tank of a cloth (MBR membrane) bioreactor are sequentially filtered, and then a microfiltration membrane core (membrane aperture of 0.1-5 um combined industrial filter cloth membrane) component of the microfiltration membrane filter is subjected to final effluent standard treatment, wherein the treatment aim is to perform more advanced treatment and filtration on effluent pollutants of the cloth (MBR membrane) bioreactor process, so that the final effluent quality is high and reaches the standard and is recycled.
When the water yield is reduced to exceed a design value or the negative pressure of a water suction pipe of a self-priming water pump exceeds a specified range due to membrane blockage, the membrane is subjected to online cleaning: after a signal indicating that the pressure gauge exceeds an appointed range is transmitted to a PLC (programmable logic controller) main control system, a self-priming water pump is automatically started and stopped, and then the clear water which reaches the standard is filtered by the self-priming water pump to clean an MBR (membrane bioreactor) membrane reaction assembly of a cloth (MBR membrane) bioreactor process and a microfiltration membrane core assembly of a microfiltration membrane filter process, so that the new group process method is always in stable high-flux standard water quantity and quality in the operation process, and the treated water quality and water quantity are more stable and the standard water outlet is promoted.
In a word, the invention can solve the problems and difficulties that MBR membranes and microfiltration membranes are easy to be polluted and difficult to maintain, the membrane manufacturing cost is high, the process running cost is overhigh, the process and the device thereof have poor cost performance ratio and the like, so that the water quality and the water quantity can be more stable to reach the standard and the water outlet is more convenient to operate and maintain or easier to realize automation.
The invention has the beneficial effects that: the method for treating sewage and wastewater can avoid the defects of other membrane-bioreactor processes, thereby solving the following problems: (1) MBR membrane reaction components and microfiltration membrane core components are easy to be polluted and difficult to maintain, the membrane manufacturing cost is high, the process running cost is too high, the process and the device thereof have poor cost performance and the like; (2) the biomass in unit volume of integrated treatment equipment or capital construction can be improved, namely the inhabitation and propagation area of microorganisms is enlarged, and the oxygenation capacity to sewage and wastewater is correspondingly improved; (3) the sewage treatment has the characteristics of ordered continuity, plug flow progressiveness and compact arrangement; (4) the system has the advantages of stable standard effluent of water quality and water quantity, convenient operation and maintenance, simple and convenient operation management, easy realization of high-degree automation and intelligent integrated reactor, modularization realization, easy extension and reconstruction of the original sewage treatment plant or station. In a word, the method for treating sewage and wastewater by the cloth bioreactor and the microfiltration membrane filter combines the operation advantages of the process method of each unit and the relevant devices thereof, so that the method has good cost performance and can realize high-efficiency stable operation treatment; if the sewage and the wastewater which are difficult to treat exist, other processes can be assisted, and finally the stable standard-reaching requirements of the effluent quality and the water quantity are met.
The invention is further explained below with reference to the drawings and examples.
Drawings
FIG. 1 is a schematic block diagram of a method for treating wastewater with a bioreactor and a microfiltration membrane filter according to an embodiment of the present invention;
FIG. 2 is a block diagram showing a flow of a method for treating wastewater with a bioreactor and a microfiltration membrane filter according to an embodiment of the present invention;
FIG. 3 is a plan view showing a method for treating wastewater with a bioreactor and a microfiltration membrane filter according to an embodiment of the present invention
FIG. 4 is a schematic block diagram of an on-line cleaning process segment according to an embodiment of the present invention;
FIG. 5 is a block flow diagram of an on-line cleaning process segment according to an embodiment of the present invention;
FIG. 6 is an isometric view of an MBR membrane reaction module and a microfiltration membrane module;
FIG. 7 is a top plan view of the MBR membrane reaction module and microfiltration membrane module;
FIG. 6-1 is an isometric view of a square tube skeleton;
FIG. 6-2 is an isometric view of an MBR membrane reaction module interfitted with two microfiltration membrane core assemblies;
FIG. 6-2-1 is an isometric view of a hanging membrane plate with kidney hole slots;
FIG. 7-1 is a sectional view B-B of FIG. 7;
FIG. 7-2 is a sectional view A-A of FIG. 7;
FIG. 7-1-1 is a side sectional view of an MBR membrane element and a membrane hanging plate in cooperation with each other;
FIG. 7-1-2 is a top cross-sectional view of an MBR membrane element and membrane hanging plate in cooperation with each other;
FIG. 7-1-2-1 is an enlarged view at W of FIG. 7-1-2;
FIG. 7-2-1 is a front sectional view of a microfiltration membrane core;
fig. 7-2-2 is a top cross-sectional view of a microfiltration membrane core.
Detailed Description
Referring to fig. 1, fig. 2 and fig. 3, the invention combines the sewage and wastewater by a cloth (MBR membrane) bioreactor process and a microfiltration membrane filter process in sequence to obtain effluent reaching the standard; meanwhile, an MBR membrane reaction component of a cloth (MBR membrane) bioreactor process and a microfiltration membrane core component of a microfiltration membrane filter process are cleaned by an online cleaning process, and the MBR membrane reaction component and the microfiltration membrane core component adopt an integrated device, so that the MBR membrane reaction component and the microfiltration membrane core component have the function of regular offline cleaning.
Referring to fig. 2, fig. 6, fig. 7 and related figures, in the process of the cloth (MBR membrane) bioreactor, the reaction device arranged in the bioreactor 5 comprises a membrane reaction component immersed in water in the bioreactor, the pore diameter of the membrane is 5um-38um, the material adopts a combined industrial filter cloth membrane, and the membrane is formed by combining the MBR membrane reaction component 5.1.
Referring to fig. 2, fig. 6, fig. 7 and related drawings thereof, in the process of the microfiltration membrane filter, the device arranged in the microfiltration membrane filter tank 10 comprises a microfiltration membrane core assembly 10.1, an MBR membrane reaction assembly 5.1 of the biological reaction tank 5 is communicated with the microfiltration membrane assembly 10.1 in the microfiltration membrane filter tank 10, the microfiltration membrane assembly 10.1 with the membrane aperture of 0.1um-5um in the microfiltration membrane filter tank 10 is made of a combined industrial filter cloth membrane.
Referring to fig. 6 and its related drawings, and fig. 7 and its related drawings, the upright surface structures of the two microfiltration membrane modules 10.1 have the characteristic of flexibility at the matching positions with the two vertical surfaces of each MBR membrane element 5.1.1 in the MBR membrane reaction module 5.1, thereby ensuring the sealing fit of interference at the matching positions.
Referring to fig. 6 and its related drawings, and fig. 7 and its related drawings, the MBR membrane reaction unit 5.1 is composed of a plurality of MBR membrane elements 5.1.1 immersed in the biological reaction tank 5 in combination with a biofilm culturing plate 5.1.2, and the MBR membrane elements 5.1.1 having a membrane pore size of 5um to 38um are composed of at least 2 layers of industrial filter cloth 5.1.1 such as terylene cloth, nylon woven cloth, etc. stacked in an overlapping manner and combined with steel bars 5.1.1.2.
Referring to fig. 6 and its related drawings, and fig. 7 and its related drawings, the microfiltration membrane core assembly 10.1 is composed of a microfiltration membrane 10.1.1 immersed in the filtration tank 10 and a steel support frame 10.1.2, and a filtration membrane core 10.1.1 with a membrane aperture of 0.1um-5um is formed by stacking and combining at least 2 layers of rigid orifice plate or grid mass transfer and support device, such as steel frame 10.1.1.2, and tightly winding industrial filter cloth 10.1.1.1.1, such as terylene cloth, nylon woven cloth, etc., on the steel frame 10.1.1.2, and each MBR membrane element 5.1.1 of the MBR membrane reaction assembly 5.1 of the cloth (MBR membrane) biological reaction tank 5 is communicated with the microfiltration membrane core assembly 10.1 of the microfiltration membrane filtration tank 10.
In the embodiment of the invention, the combined process for treating sewage and wastewater by using the cloth (MBR membrane) bioreactor and the microfiltration membrane filter is a process method integrating MBR membrane bioreaction, separation and filtration and microfiltration membrane separation and filtration (see fig. 1, fig. 2 and fig. 3), wherein a reaction device arranged in the cloth (MBR membrane) bioreactor 5 comprises a membrane reaction component immersed in water of the tank, the membrane aperture of the membrane is 10-38 um, the material adopts a combined industrial filter cloth membrane, the membrane is formed by combining an MBR membrane reaction component 5.1 (the number of the MBR membrane components 5.1.1 is far smaller than that of membrane components of a common MBR membrane bioreactor), the MBR membrane reaction component 5.1 is formed by combining a plurality of MBR membrane components 5.1.1 immersed in the bioreactor 5 and a membrane hanging plate 5.1.2, the MBR membrane reaction component 5.1 is formed by overlapping and piling at least 2 layers of MBR woven fabrics such as polyester fabrics, nylon fabrics and the like and 5.1.1.2, and forms a membrane component 5.1.1 (3.1) with the membrane aperture of membrane components with the membrane aperture of 10-38 um, See fig. 6 and its fig. 6-2, see fig. 7 and its fig. 7-1, etc.); each MBR membrane element 5.1.1 of the MBR membrane reaction component 5.1 of the cloth biological reaction tank 5 is communicated with a microfiltration membrane core assembly 10.1 of the microfiltration membrane filter tank 10, each microfiltration membrane core assembly 10.1 is formed by combining a microfiltration membrane core 10.1.1 immersed in the filter tank 10 and a steel support frame 10.1.2, a mass transfer and support device with a rigid pore plate or grid is adopted as the steel frame 10.1.1.2, and at least 2 layers of industrial filter cloth 10.1.1 such as terylene cloth and nylon textile cloth are tightly wound on the steel frame 10.1.1.2 to form the microfiltration membrane core 10.1.1 with the membrane aperture of 0.1um-10um, and meanwhile, the vertical surface structures of the two microfiltration membrane components 10.1 have the characteristic of flexibility (because the industrial filter cloth has the flexibility) at the matching part of the MBR membrane element 5.1 in each vertical surface of the MBR membrane reaction component 5.1, thereby ensuring the sealing and matching of the matching part (see FIGS. 3, 6 and 6-2, see fig. 7 and its related figures, fig. 7-2, etc.); the function is that due to the interception function of the MBR membrane reaction component 5.1, the bioreactor maintains very high microorganism concentration, which is beneficial to the degradation of organic pollutants and can also prevent the loss of suspended matters and organic matters with large molecular weight, so that a plurality of macromolecular organic matters which are difficult to degrade and have slow decomposition speed are degraded, the degradation efficiency is improved by prolonging the residence time of a reaction tank, the capability of the cloth (MBR membrane) bioreactor for treating the organic matters which are difficult to degrade is enhanced, meanwhile, the microfiltration membrane core component 10.1 carries out more deep treatment and filtration on the water pollutants discharged from the cloth (MBR membrane) bioreactor, so that the final water quality is high and reaches the standard and is recycled, and the sewage which is not completely treated by the prior art is orderly continuous, and the plug flow gradually and more deeply reaches the standard discharged water, and the operation is divided into three stages according to the above:
1. MBR membrane bioreaction and separation filtration stage: the liquid level controller 3 of the adjusting tank instructs the lifting water pump 4 to open and close through the PLC control system, the sewage and the wastewater of the adjusting tank continuously flow into the reaction tank 5 of the MBR (MBR membrane) bioreactor through the lifting water pump 4 to carry out aerobic biochemical reaction and membrane separation and filtration treatment (see fig. 1, fig. 2 and fig. 3), the aeration condition of the reaction tank 5 is instructed by the PLC control system 8 to set when the aeration is normal, the electromagnetic valve 7, the Roots blower 9 and the aeration device 6 on the gas supply pipeline are closed and opened to realize the execution of the instruction, the reaction tank 5 is further formed to carry out normal aeration, the MBR membrane reaction component 5.1 of the reaction tank 5 is subjected to the aerobic biochemical reaction, meanwhile, the liquid level controller 3 of the reaction tank 5 instructs the self-priming water pump 11 to open and close through the PLC control system 8, and the MBR membrane reaction component 5.1.
2. And (3) a microfiltration membrane separation and filtration stage: because MBR membrane reaction unit 5.1 intercommunication microfiltration membrane filter tank 10 of cloth (MBR membrane) biological reaction pond 5 is the microfiltration membrane core subassembly 10.1, come the instruction from PLC control system 8 to start and close from water pump 11 when the liquid level controller 3 of reaction pond 5, separate the filtration to MBR membrane reaction unit 5.1 of reaction pond 5 earlier and carry out more degree of depth separation filtration and (non-sterile) up to standard play water to microfiltration membrane core subassembly 10.1 of microfiltration membrane filter tank 10 again (see figure 1, see figure 2, see figure 3).
3. A disinfection treatment stage: the effluent water in the microfiltration membrane separation and filtration stage is subjected to contact disinfection by a disinfectant (chlorine dioxide, sodium hypochlorite, sodium dichloroisocyanurate and the like) adding system in a clean water tank, so that enough disinfection time is ensured, the effect of temporary storage and contact disinfection is achieved, and the faecal coliform number index reaches the standard (see fig. 1, fig. 2 and fig. 3).
In the embodiment, the online cleaning process is a process method (see fig. 4 and 5) which integrates the online membrane blockage real-time monitoring technology and the cleaning system and is formed by combining a self-priming water pump 11, a pressure gauge 12 and a flow meter 13 with real-time monitoring, a PLC control system 8 and a cleaning water inlet and outlet pipe into a whole, and realizes the automatic membrane cleaning: after a signal which exceeds an appointed range and is displayed by a pressure gauge 12 is transmitted to a PLC (programmable logic controller) main control system 8, a self-priming water pump 11 is automatically started and stopped, and then the clear water which reaches the standard is filtered by the self-priming water pump 11 to clean an MBR (membrane bioreactor) membrane reaction assembly 5.1 of a cloth (MBR membrane) bioreactor process and a microfiltration membrane core assembly 10.1 of a microfiltration membrane filter process, so that the new group process method is ensured to be always in stable high-flux standard water quantity and quality in the operation process, and the treated water quality and the water quantity are promoted to be more stable to be in the optimal condition of standard outlet water.
The invention relates to a sewage and wastewater treatment method of a cloth bioreactor and a microfiltration membrane filter, which comprises the following steps of: the sewage treatment system has the advantages of low manufacturing cost, low operating cost, and capability of reasonably, efficiently and stably carrying out the standard treatment of ordered continuity, plug flow progressiveness and arrangement compactness on the sewage. The membrane bioreactor can also solve the problems and difficulties that MBR membranes and microfiltration membranes are easy to be polluted and difficult to maintain, the membrane manufacturing cost is high, the process running cost is too high, the process and the device thereof have poor cost performance, and the like, so that the water quality and the water quantity can be more stable to reach the standard and the water outlet is more convenient to operate and maintain or easier to realize automation.
Claims (4)
1. A method for treating sewage and wastewater by a cloth bioreactor and a microfiltration membrane filter is characterized in that the sewage and wastewater are treated by combining a cloth bioreactor process and a microfiltration membrane filter process in sequence and then discharged after reaching the standard; meanwhile, an MBR membrane reaction assembly of the cloth bioreactor process and a microfiltration membrane core assembly of the microfiltration membrane filter process are cleaned by an online cleaning process, and the MBR membrane reaction assembly and the microfiltration membrane core assembly adopt an integrated device, so that the integral device has a function of regular offline cleaning;
in the process link of the microfiltration membrane filter, the device arranged in the microfiltration membrane filter tank (10) comprises a microfiltration membrane core assembly (10.1), an MBR (membrane bioreactor) membrane reaction assembly (5.1) of the cloth biological reaction tank (5) is communicated with the microfiltration membrane core assembly (10.1) in the microfiltration membrane filter tank (10), the membrane aperture of the microfiltration membrane core assembly (10.1) in the microfiltration membrane filter tank (10) is 0.1-5 um, and the material adopts a combined industrial filter cloth membrane;
the matching positions of the upright surface structures of the two microfiltration membrane core assemblies (10.1) and the upright surface two ends of each MBR membrane element (5.1.1) in the MBR membrane reaction assembly (5.1) have flexible characteristics, so that the interference sealing matching of the matching positions is ensured.
2. The method as claimed in claim 1, wherein the reaction device disposed in the cloth bioreactor tank (5) comprises MBR membrane reaction module immersed in the water, the membrane aperture is 5-38 μm, and the material is combined industrial filter cloth membrane.
3. The cloth bioreactor and microfiltration membrane filter sewage treatment method according to claim 2 wherein said MBR membrane reaction unit (5.1) is formed by combining a plurality of MBR membrane elements (5.1.1) and membrane hanging plates (5.1.2) immersed in said cloth bioreactor (5), and said MBR membrane elements (5.1.1) having membrane pore sizes of 5-38 um are formed by stacking at least 2 layers of industrial filter cloth membranes in an overlapping manner and combining with reinforcing bars (5.1.1.2).
4. The cloth bioreactor and the sewage and wastewater treatment method of the microfiltration membrane filter according to claim 3, wherein the microfiltration membrane core assembly (10.1) is formed by combining a microfiltration membrane core (10.1.1) immersed in the microfiltration membrane filter tank (10) and a steel support frame (10.1.2), the mass transfer and support device with a rigid pore plate or grid is a steel frame (10.1.1.2), at least 2 layers of industrial filter cloth films are tightly wound on the steel frame (10.1.1.2) to form the microfiltration membrane core (10.1.1) with the membrane aperture of 0.1um-5um in an overlapped and stacked manner, and each MBR membrane element (5.1.1) of the MBR membrane reaction component (5.1) of the cloth bioreactor (5) is communicated with the microfiltration membrane core assembly (10.1) of the microfiltration membrane filter tank (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810736214.3A CN108773986B (en) | 2018-07-06 | 2018-07-06 | Sewage and wastewater treatment method of cloth bioreactor and microfiltration membrane filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810736214.3A CN108773986B (en) | 2018-07-06 | 2018-07-06 | Sewage and wastewater treatment method of cloth bioreactor and microfiltration membrane filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108773986A CN108773986A (en) | 2018-11-09 |
| CN108773986B true CN108773986B (en) | 2021-04-06 |
Family
ID=64029697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810736214.3A Active CN108773986B (en) | 2018-07-06 | 2018-07-06 | Sewage and wastewater treatment method of cloth bioreactor and microfiltration membrane filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108773986B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070001521A (en) * | 2005-06-29 | 2007-01-04 | (주)송림워터테크 | Apparatus for treating waste water |
| CN101037282A (en) * | 2007-04-27 | 2007-09-19 | 凌猛 | Water treatment new combined technique with high purification function |
| CN101088941A (en) * | 2007-06-29 | 2007-12-19 | 天津森诺过滤技术有限公司 | Technological process of treating papermaking effluent for reuse based on membrane integrating technique |
| JP5960401B2 (en) * | 2011-09-02 | 2016-08-02 | 積水化学工業株式会社 | Water treatment apparatus and water treatment method |
| CN106865889A (en) * | 2017-02-24 | 2017-06-20 | 江苏清溢环保设备有限公司 | A kind of effluent purification method |
| CN108218102A (en) * | 2016-12-21 | 2018-06-29 | 天津市科锐升科技有限公司 | A kind of high-concentration industrial waste water processing system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69632422T2 (en) * | 1995-08-11 | 2005-05-19 | Zenon Environmental Inc., Oakville | Process for embedding hollow fiber membranes |
| US20140328651A1 (en) * | 2013-03-08 | 2014-11-06 | Banner Environmental Engineering Consultants Ltd. | Membrane Lift Assembly |
-
2018
- 2018-07-06 CN CN201810736214.3A patent/CN108773986B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070001521A (en) * | 2005-06-29 | 2007-01-04 | (주)송림워터테크 | Apparatus for treating waste water |
| CN101037282A (en) * | 2007-04-27 | 2007-09-19 | 凌猛 | Water treatment new combined technique with high purification function |
| CN101088941A (en) * | 2007-06-29 | 2007-12-19 | 天津森诺过滤技术有限公司 | Technological process of treating papermaking effluent for reuse based on membrane integrating technique |
| JP5960401B2 (en) * | 2011-09-02 | 2016-08-02 | 積水化学工業株式会社 | Water treatment apparatus and water treatment method |
| CN108218102A (en) * | 2016-12-21 | 2018-06-29 | 天津市科锐升科技有限公司 | A kind of high-concentration industrial waste water processing system |
| CN106865889A (en) * | 2017-02-24 | 2017-06-20 | 江苏清溢环保设备有限公司 | A kind of effluent purification method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108773986A (en) | 2018-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102580544B (en) | High-flux contamination-resisting type flat membrane bioreactor and flat MBR (Membrane Bioreactor) device | |
| US20050194310A1 (en) | Zero excess sludge membrane bioreactor | |
| CN101074141B (en) | Process for regenerating, recovering and reutilizing low-concentration organic waste water | |
| CN101708919A (en) | Method for treating leachate in refuse landfill site | |
| CN101905924B (en) | Wastewater treatment equipment and method for ship | |
| CN112759078A (en) | Integrated sewage treatment device and method | |
| CN201284274Y (en) | Biological and ecological combined apparatus for purifying and recycling sewage | |
| CN115818862A (en) | Cold water area mariculture tail water treatment system | |
| CN100513336C (en) | Water treatment new combined technique with high purification function | |
| CN208802964U (en) | A kind of Hybrid Biofilm Reactor and bioreactor sewage and wastewater treatment system | |
| CN211620065U (en) | Double-membrane self-cleaning membrane bioreactor based on Fenton reaction | |
| CN108773986B (en) | Sewage and wastewater treatment method of cloth bioreactor and microfiltration membrane filter | |
| CN216808509U (en) | Movable advanced sewage treatment system based on microorganism embedding construction method | |
| CN203269735U (en) | Equipment for treating rubbish leachate by utilizing two-stage bioreactors | |
| CN213112947U (en) | AO is biochemical-MBR integration effluent treatment plant | |
| CN108773985B (en) | Sewage and wastewater treatment method by composite biofilm method and bioreactor | |
| CN211170300U (en) | Ultra-low pressure gravity-driven biological ultrafiltration coupling water purification device | |
| CN212640237U (en) | Double-membrane integrated sewage treatment equipment | |
| CN212222745U (en) | Domestic sewage treatment device with integrated membrane bioreactor | |
| CN114436472A (en) | Movable advanced sewage treatment system based on embedded microorganism construction method | |
| KR20200115384A (en) | Vertical structure and an upflow MBR system comprising mechanical cleaning balls for wastewater treatment | |
| CN201809253U (en) | Internal-external membrane filtration and separation sewage treatment device | |
| CN208562082U (en) | A kind of arraying biomolecule reactor and the stain disease processing equipment of microporous filtration combination | |
| CN220723852U (en) | Integrated MBR sewage treatment device | |
| CN115140907A (en) | Sewage treatment method and system combining biological contact oxidation and MBR (membrane bioreactor) and microfiltration membrane filtration |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |