CN2682069Y - Automatic control membrane biological reactor - Google Patents

Abstract

The utility model discloses an automatic control membrane biological reactor, chiefly consisting of a reactor box body, a membrane module, an intake apparatus, a water outlet device, an aeration equipment, a film contamination control device and an automatic on-line drug washing device. In the operational process of the reactor, the film contamination control device is made to drive a film thread to make reciprocating bending movement, which makes the filter surface of the film thread generate movement in treated water in order to reduce film pollution, the film pollution degree is judged according to the change of water flux, and automatic an on-line drug washing procedure is automatically performed to eliminate the pollution of the film. The utility model is of simplified operational procedure, favorable outlet water quality and reaching the service water recycling standard prescribed by country. The utility model can be extensively used for the processing domestic wastewater, restaurant waste water and food industry wastewater, specially being adapted to the application in the areas of tight land resource and high requirement of sewage treatment.

Description

The self-control type membrane bio-reactor

One, technical field

The utility model relates to the membrane bioreactor in a kind of sewage disposal, particularly a kind of self-control type membrane bio-reactor.

Two, background technology

Membrane bioreactor because it has plurality of advantages such as floor space is little, volumetric loading is high, effluent quality is good, and is widely used in the sewage treatment area.But in the various types of films bio-reactor of exploitation at present, the pollution and the blockage problem of film never are well solved.Chinese patent 02205775.7 discloses a kind of " integral type film biological reactor ", and it is made up of casing, membrane module, water inlet pipe and water outlet pipe, guiding device, aerating apparatus etc.This reactor is divided into activated sludge reaction district and membrane separation zone, in the activated sludge reaction district, establish aerating apparatus, the face cross-flow that produces by aeration is polluted film and is carried out process control, pollute and progressively worsen after causing reactor normally not move, then adopt the chemical agent infusion method that membrane flux is recovered.The problem that this method exists in actual applications is: 1, the higher air water of needs recently improves crossflow velocity, with deposition and the absorption that slows down the film surface pollution thing, and utilizing the increasing aeration intensity to improve in the process of gas-water ratio, will be through twice energy transformation, its power loss is bigger, and utilization ratio is low; 2, unit membrane area flux is low.This reactor unit membrane area flux generally has only 5～10L/m ²H (under the 0.03Mpa).Because of the gas-liquid flow flush efficiency is low, energy consumption is big, and film pollutes and is difficult to effective removal, so it is little that the unit membrane area is handled the water yield, causes the film expense to increase.3, the membrance chemistry dip operation is complicated, and is time-consuming, and influences the continuous operation of reactor, causes secondary pollution simultaneously, so industrial application is difficult to realize.

Three, summary of the invention

The purpose of this utility model is to provide a kind of can slow down and eliminate the film pollution preferably, and can when film is seriously polluted, carry out real-time online again simultaneously and handle it, and the self-control type membrane bio-reactor of operation program simplification.

The purpose of this utility model is achieved through the following technical solutions.A kind of self-control type membrane bio-reactor, it comprises the reactor casing, membrane module, water feed apparatus, discharging device and aerating apparatus, membrane module is made of film silk and header, it is positioned at the reactor casing, aeration tube in the aerating apparatus is positioned at the below of reactor casing membrane module, it is characterized in that it also comprises a film pollution control device and automatic on-line medicine cleaning device, the film pollution control device is by baffle plate, support and motor driver are formed, support is positioned at the both sides of reactor casing membrane module, motor driver is positioned at the top of support, baffle plate is arranged in the middle part of membrane module film silk, the baffle plate both sides be provided with can transverse movement on support upper and lower support plate, upper backup pad has bar-shaped trough, the support both sides are provided with symmetric fixed pulley, and have a hole that is used for the supporting baffle upper and lower support plate, the baffle plate both sides also are provided with shack, two ends that drive rope are separately fixed on the shack on baffle plate both sides, and the other end is by the fixed pulley on support both sides, and the bar-shaped trough that passes on the baffle plate upper backup pad is connected with motor driver; Automatic on-line medicine cleaning device mainly is made up of controlling box, liquid level sensor, clean-out system storage tank, dosing pump, check valve and two motorized valves.Liquid level sensor is arranged on the top of membrane module in the reactor casing, the output of liquid level sensor and controlling box input terminus join, the liquid outlet of cleaning agent storage tank links to each other with the header of membrane module with check valve by dosing pump, this header water outlet place is provided with motorized valve, the liquid inlet of cleaning agent storage tank links to each other with the other end header of membrane module by another motorized valve, and intake pump and outlet valve in dosing pump, two motorized valves and the water feed apparatus are controlled by controlling box.Motor driver is made up of motor, left and right sides rotating disk in the above-mentioned film pollution control device, and left and right sides rotating disk is rotated by driven by motor, and its edge is respectively equipped with and is used to connect the rotating shaft that drives rope.

Principle of work of the present utility model is: in the whole process of reactor operation, the film pollution control device is simultaneously in running order, its motor driver makes the film silk do the cyclic bending motion in water by driving the moving baffle plate of rope band, it can make on the one hand, and the space is in the closed state that alternately changes all the time between the film silk, causes comparatively intensive turbulent flow of film silk surface; Because the difference that membrane module different sites film filate becomes produces certain phase mutual friction between the film silk, destroyed settled layer and formed required condition on the other hand; This adventitia silk bending causes settled layer to break, come off to the stretching action of established settled layer, thereby has slowed down the formation speed of polluting.This method makes the energy of device consumption except that overcoming the operating friction resistance of device, almost all acts on the mixed liquor of film silk and film near surface, has improved the utilization ratio of energy consumption and the removal efficient that film pollutes.Automatic on-line medicine cleaning device is by being arranged on the intravital liquid level sensor control of reactor case, flooding velocity is controlled to be set(ting)value by liquid meter, increase with the film pollution, film keeps the required liquid level of flux to raise, surpass the highest when spacing, automatically close intake pump and outlet valve by controlling box control, carry out online medicine washing procedure, opening dosing pump makes the cleaning soup cycle through the film inner chamber, remove film inwall organic contamination layer,, clean soup and infiltrate into outside surface simultaneously by the osmosis of fenestra, remove the organic contamination layer of outside surface, remove the purpose of polluting thereby reach.

The utility model compared with prior art its beneficial effect is: 1, membrane module is connected with pollution control device, does the cyclic bending motion by electric motor driving film silk, make film silk filtering surface produce motion in processed water, pollute to reduce film; 2, system adopts the online medicine of control automatically to wash technology, judges the film pollution level according to the variation of water flux, automatically performs online medicine washing procedure, removes film and pollutes, and has realized the automatic control of process, has simplified film simultaneously and has polluted the schedule of operation of cleaning; 3, operation scheme easily realizes, in the scope that the physical strength of film allows, reciprocating amplitude of film silk and frequency can be regulated easily; 4, the automatic on-line medicine is washed the matting that film is polluted and is finished in reactor, and institute's with medicament itself just can be used for the sterilization and disinfection of water, and consumption compares lessly with the chemical immersion method, can not produce secondary pollution; 5, the utility model combines the pollution layer control device with the on-line cleaning system is effective, has simplified actually operating, makes membrane flux remain on good horizontal.The utility model effluent quality is good, reaches the miscellaneous water reuse standard of national regulation, can be widely used in the processing to sanitary wastewater, food and drink waste water and food industrial wastewater, be specially adapted to land resources in short supply, the demanding area of sewage disposal is used.

Four, description of drawings

Fig. 1 is the one-piece construction synoptic diagram according to self-control type membrane bio-reactor described in the utility model.

Fig. 2, Fig. 3 are film pollution control device structural representation and the stereographic maps in the utility model.

Fig. 4 is the automatic on-line medicine cleaning device structural representation in the utility model.

Five, embodiment

Below in conjunction with accompanying drawing concrete structure of the present utility model is described in further detail.

Referring to Fig. 1, according to self-control type membrane bio-reactor described in the utility model, it mainly is made up of reactor casing, membrane module, water feed apparatus, discharging device, aerating apparatus, film pollution control device and automatic on-line medicine cleaning device, and membrane module is positioned at reactor casing 13.Referring to Fig. 2, Fig. 3, the drive unit that the film pollution control device is made up of baffle plate 12, support 23, driving rope 25, fixed pulley 21 and motor 9, left-hand rotation dish 7, right-hand rotation dish 8 constitutes, baffle plate 12 middle parts are annular, it is fixed on the middle part of the film silk in the membrane module, respectively there are two back up pads 28 up and down on baffle plate 12 both sides, have bar-shaped trough 30 on the upper backup pad; Support 23 is a rectangular frame, the framework both sides respectively have two holes 29, the back up pad 28 of baffle plate passes from this hole 29, also be provided with four fixed pulleys 21 on two side frames of support 23, two upper limbs that are fixed on framework wherein, on other two frameworks that are fixed between two holes 29, driving rope 25 is two nylon ropes, one end of two nylon ropes 25 respectively with left and right sides rotating disk 7, the rotating shaft 26a at 8 edges, 26b joins, the other end is respectively along pulley 21a, 21b, pass the stripe shape groove 30 of baffle plate upper backup pad, again through pulley 21c, the frame plate that passes support 23 both sides behind the 21d joins with the shack 27 that is fixed in the baffle plate left and right sides.In addition, slide freely when moving reciprocatingly in order to make baffle plate 12,29 places, hole that are used for supporting baffle 12 upper and lower support plates on support 23 both sides are provided with pulley 22.Automatic flushing device is made up of controlling box 1, clean-out system storage tank 3, dosing pump 15, check valve 5, motorized valve 4, motorized valve 10, liquid level sensor 6, and its positional structure is referring to Fig. 4.

Self-control type membrane bio-reactor described in the utility model is when operation, water inlet promotes by intake pump 2, flow adopts the method for constant rate by a valve 20 and liquid meter 19 controls, and the water outlet liquid level difference is regulated automatically by the balance of water flow and flooding velocity.Carry out aeration by air pump 18, aeration tube 16 is positioned under the membrane module, and aeration rate is measured and regulated by gas meter 17.In the whole process of reactor operation, pollution control device is in running order all the time, and motor 9 drives rotating disk 7,8 rotations, and is reciprocating by the rotation traction traction baffle plate 12 of rotating disk 7,8 with the nylon rope 25 that rotating shaft on the rotating disk 26 is connected and fixed.Make the film silk under the effect of baffle plate 12, do the transverse bend motion, stop the formation of face settled layer.

In the reactor operational process, motorized valve 10 and outlet valve 14 are opened, and motorized valve 4 cuts out, and purify water outlet and flow out by outlet valve 14.With the increase that film pollutes, water flow descends, because flooding velocity is greater than water flow, liquid level rises in the reactor.After pollution acquired a certain degree, liquid level touched liquid level sensor 6, and automatic control circuit is closed intake pump 2, outlet valve 14 and motorized valve 10 in the controlling box 1, open motorized valve 4, dosing pump 15, make cleaning agent cycle through film silk inner chamber, realize online Pollution abatement, thereby recover membrane flux.Again close motorized valve 4 after cleaning finishes, open intake pump 2, outlet valve 14 and motorized valve 10, the normal operation of recovery device.

The utility model self-control type membrane bioreactor for treatment sanitary wastewater, food and drink waste water and food industrial wastewater, effluent quality is good, can reach the miscellaneous water reuse standard of national regulation.Simultaneously biological degradation efficient height, energy consumption are low, automatic control degree height, membrane module convenient operating maintenance, long service life, and floor space is little, easy for installation, be specially adapted to land resources in short supply, the demanding area of sewage disposal is used.

Claims (3)

1, a kind of self-control type membrane bio-reactor, it comprises reactor casing [13], membrane module, water feed apparatus, discharging device and aerating apparatus, membrane module is made up of film silk [11] and header [24], it is positioned at reactor casing [13], aeration tube in the aerating apparatus [16] is positioned at the below of reactor casing [13] membrane module, it is characterized in that it also comprises a film pollution control device and automatic on-line medicine cleaning device, the film pollution control device is by baffle plate [12], support [23] and motor driver are formed, support [23] is positioned at the both sides of reactor casing [13] membrane module, motor driver is positioned at the top of support [23], baffle plate [12] is arranged in the middle part of membrane module film silk [11], baffle plate [12] both sides are provided with can go up the upper and lower support plate [28] of transverse movement at support [23], upper backup pad has bar-shaped trough [30], support [23] both sides are provided with symmetric fixed pulley [21], and have a hole [29] that is used for supporting baffle [12] upper and lower support plate, baffle plate [12] both sides also are provided with shack [27], two ends that drive rope [25] are separately fixed on the shack [27] on baffle plate both sides, and the other end is by the fixed pulley [21] on support [23] both sides, and the bar-shaped trough [30] that passes on baffle plate [12] upper backup pad is connected with motor driver; Automatic on-line medicine cleaning device is mainly by controlling box [1], liquid level sensor [6], cleaning agent storage tank [3], dosing pump [15], check valve [5], motorized valve [4] and motorized valve [10] are formed, liquid level sensor [6] is arranged on the top of the interior membrane module of reactor casing [13], the output of liquid level sensor [6] and controlling box [1] input terminus join, the liquid outlet of cleaning agent storage tank [3] links to each other with the header [24a] of membrane module with check valve [5] by a dosing pump [15], the water outlet of header [24a] is provided with motorized valve [10], the liquid inlet of cleaning agent storage tank [3] links to each other motorized valve [4] by a motorized valve [4] with the other end header [24b] of membrane module, motorized valve [10], intake pump [2] and the outlet valve [14] in the discharging device in dosing pump [15] and the water feed apparatus are controlled by controlling box [1].

2, according to the described self-control type membrane bio-reactor of claim 1, it is characterized in that motor driver is made up of motor [9], left and right sides rotating disk [7], [8] in the above-mentioned film pollution control device, left and right sides rotating disk [7], [8] are by motor [9] driven rotary, and its edge is respectively equipped with and is used for connecting the rotating shaft [26] that drives rope [25].

3,, it is characterized in that the hole [29] that support [23] both sides are used for supporting baffle [12] upper and lower support plate locates to be provided with pulley [22] according to claim 1 and 2 described self-control type membrane bio-reactors.

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