CN100471797C

CN100471797C - Anaerobe and pressure waste water treatment method and device

Info

Publication number: CN100471797C
Application number: CNB2004100506857A
Authority: CN
Inventors: 王宝瑞
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-10-27
Filing date: 2004-10-27
Publication date: 2009-03-25
Anticipated expiration: 2024-10-27
Also published as: CN1769207A

Abstract

The invention discloses a method for wastewater pressure anaerobic biological treatment and the reactor device. When treating wastewater, the wastewater-particle sludge contact time is prolonged and the wastewater to particle sludge shearing strength is decreased, which makes wastewater be mixed with particle sludge completely and large amount of organics convert to methane. Using pressure produced in biological metabolism, the suspension solid is filtered out at grid filtering layer, which make the quality of water outlet approach to definite purity, and the water inlet volume load factor of the reactor being improved substantially. And the produced methane also has definite pressure, being pressure methane.

Description

Waste water pressure anaerobic bioremediation and device thereof

Affiliated technical field

The present invention relates to a kind of method and device thereof of anaerobic waste water biological treatment, particularly under pressure, waste water is carried out the method and the device thereof of anaerobic biological treatment.

Background technology

At present, the reactor productivity device of various types of processing waste water, its water outlet all communicates with atmosphere, and granule sludge is sheared by the waste water of quick up-flow in reactor, and small-particle quantity is increased, reduced the contact area of mud granule with waste water, suspended solids in the waste water along with the rising of lifting height, is subjected to hydrostatic pressure and reduces gradually, suspended solids is run off in a large number, and processed purification of waste water rate reduces.

Summary of the invention

In order to improve waste water up-flow speed in the reactor, reduce the shearing resistance of waste water to granule sludge, accelerate the speed of growth of mud, reduce a large amount of losses of suspended solids, the water inlet volumetric loading of reactor is increased substantially, and make waste water residence time in reactor the shortest, and realize intensive treatment to waste water, reach the expection treatment effect of effluent quality.

The technical solution adopted for the present invention to solve the technical problems is: a kind of method of waste water pressure anaerobic biological treatment, and the waste water pressure anaerobic biological treatment reactor device for realizing that this method is invented.

The method of waste water pressure anaerobic biological treatment of the present invention is: in the good stress reaction apparatus of airtight performance, when utilizing wastewater treatment, the metabolism gaseous tension that is generated in the anaerobion metabolic process, equilibrium pressure for system, in the pressure range of setting, waste water obtains anaerobic biological treatment in the pressure environment system, waste water after processed, further filter via the grid filtering layer, residue in suspended solids in the waste water almost all by filtering, waste water is when the transmission grating filtering layer, pressure is consumed, so not only effluent quality is thoroughly purified, and the biogas that is generated simultaneously also has certain pressure, is pressure biogas.

The reactor assembly of waste water pressure anaerobic biological treatment of the present invention is: have the reactor assembly of good airtight performance and strong rigidity, being one has the very tower shape reactor of larger ratio of height to diameter, and inside is made up of two unit of bottom reaction zone upper layer reaction zone.Influent waste water enters the bottom reaction zone with pump by the reactor assembly bottom, be divided into two spiral stream guidance chambeies independently separately by the duplex flow deflector, current are in the spiral stream guidance chamber, mode with the turbulent flow advection, rise along spiral stream guidance chamber lead angle, when rising, fully contact uniform mixing with granule sludge, contained most of organism in the waste water, be converted to biogas, current that rise and biogas are subjected to the piston effect restriction of spiral stream guidance chamber, have alleviated the shearing resistance to mud granule, have also stoped the generation of water circulation simultaneously.When the biogas that is produced rose to bottom reaction zone top, biogas was collected by the gas skirt of top, and biogas will rise along the spiral upspout.When biogas rises, the mixed solution of bottom reaction zone is promoted in the backwater cover that is located at top, the gas-liquid separation in the backwater cover of the biogas of rising, biogas enters collection chamber, is drained by vapor pipe.The muddy water mixed solution of separating will be got back to the bottom of bottom reaction zone along return line, and with the granule sludge of bottom and water inlet thorough mixing, the mass transfer circulation of this bottom reaction zone mixed solution of having strengthened, make the bottom reaction have quite high biomass, very long sludge age, and large stretch of large stretch of mud often arranged, strip off from spiral deflector, granule sludge in the bottom reaction zone is strengthened, because very high rate of mass transfer is arranged, biochemical reaction rate is improved, the organic matter removal ability is strengthened.The waste water that process bottom reaction zone was handled, under the promotion of up-flow current, can enter into the upper strata reaction zone, be proceeded to handle, remaining organism is further degraded by the anaerobic grain sludge in the reaction zone in the waste water, make waste water obtain quite high purification, the biogas that produces enters into collection chamber by going out air ring, and waste water of being brought up and suspended solids turn back in the reaction zone of upper strata from backwater hole, enter the precipitation state, carry out solid-liquid separation.The supernatant liquor of handling is drawn by rising pipe, enters into the grid filtering layer, and turbid purification is further gone in water outlet, because water outlet has certain pressure, with the pressure difference is impellent, and water outlet is when the transmission grating filtering layer, and the suspended matter major part is filtered out, concentrated solution is deposited in the subsider, can further precipitate, filtering clear water, pressure consume loss in filtration procedure, but water quality has reached certain purity, the purposes beyond can be used for drinking.For example washing, cooling water, irrigation and drainage etc. can make draining regeneration as the row of outfit Water reuse system.Like this, waste water has just been finished the whole process of handling in the stress reaction apparatus, uses the processing requirements that water quality reaches expection.

The invention has the beneficial effects as follows that handle waste water under pressure, reactor assembly seals fully, anaerobic environment is good, gas-solid liquid natural separation in system, better effects if, water outlet is filtered by the grid filtering layer, make effluent quality reach three class water quality standards, under identical operational conditions, the extraordinary raising of water inlet organic loading rate, gas production rate increases, the work of expansion that gas produces increases, and saves power consumption.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is the essential structure and the fundamental diagram of waste water pressure anaerobic biological treatment reactor device of the present invention.

Among the figure 1, the pressure anaerobic bioreactor device, 2, grid filter essence leaches hydrophone, 3, reactor shell, 4, the backwater cover, 5, the spiral upspout, 6, return line, 7, the bottom reaction zone, 8, the upper strata reaction zone, 9, the gas-water separation cover, 10, spiral deflector, 11, the 1st spiral stream guidance chamber, 12, the 2nd spiral stream guidance chamber, 13, gas skirt, 14, backwater hole, 15, the spiral riser, 16, go out air ring, 17, middle sealing gland, 18, vapor pipe, 19, rising pipe, 20, the grid filtering layer, 21, the residual gas recovery tube, 22, the water outlet device shell, 23, the concentrated solution drainage tube, 24, the rising pipe of purifying waste water, 25, sludge-discharge pipe, 26, the mixed solution spiral promotes the chamber, 27, water injection allocator, 28, biogas pressure regulation delivery system, 29, subsider, 30, collection chamber.

Embodiment

In Fig. 1, it is two independent device separately that pressure anaerobic bioreactor device 1 leaches hydrophone 2 with grid filter essence, is connected by rising pipe 19, has formed waste water pressure anaerobic biological treatment reactor device main body.Shell of reactor 3 is one the very airtight tower shape reactor of larger ratio of height to diameter, and the middle sealing gland 17 in the device is separated into

bottom reaction zone

7 and 8 two unit of upper strata reaction zone with reactor assembly.Duplex flow deflector 10 is along the inner walls spin-up that makes progress in reactor assembly, and form two spiral stream guidance chambeies, the 1st guide screw eddy flow chamber 11 and the 2nd guide screw eddy flow chamber 12, outlet is facing to top gas skirt 13, water inlet is entered by the reactor assembly bottom with pump, under the distribution of water injection allocator 27, current are in the spiral stream guidance chamber, mode with the turbulent flow advection, rise along spiral stream guidance chamber lead angle, when rising, fully contact uniform mixing with anaerobic grain sludge, contained most of organism in the waste water, be converted to biogas, when the biogas liter that is produced floats to bottom reaction zone 7 tops, biogas is collected by the gas skirt 13 of top, and biogas rises along spiral upspout 5, and spiral upspout 5 is a composite bushing, water return line 6 leads to bottom reaction zone 7 bottoms in the interior dress, between interior water return line 6 outer walls were with spiral upspout 5, winding screw riser 15 linked fixing through to the top with gas-water separation cover 9, the biogas that rises promotes in the interlayer chamber of chamber 26 formation at spiral, when rising, when the mixed solution of bottom reaction zone 7 is risen to backwater cover 4, the gas-liquid separation in backwater cover 4 of the biogas of rising, biogas enters collection chamber 30, is drained by vapor pipe 18.The muddy water mixed solution of separating will be got back to the bottom of bottom reaction zone 7 along return line 6, and with the granule sludge of bottom and water inlet thorough mixing, the waste water that process bottom reaction zone 7 was handled, under the promotion of up-flow current, can enter into upper strata reaction zone 8 is continued to handle, remaining organism is further degraded by the anaerobic grain sludge in the reaction zone in the waste water, make waste water obtain suitable high purification, the biogas that produces enters into collection chamber 30 and also is deflated pipe 18 and drains by going out air ring 16, waste water of being brought up and suspended solids, turn back in the upper strata reaction zone 8 from backwater hole 14, enter the precipitation state, carry out further solid-liquid separation.The supernatant liquor of handling, draw by rising pipe 19, entering grid filter essence leaches among the hydrophone 2, built-in fibrous packing grid filtering layer 20 is tightly encapsulated by water outlet device shell 22, the supernatant liquor that sees through is further gone turbid purification, water outlet is when transmission grating filtering layer 20, the suspended matter major part is filtered out, and concentrated solution is deposited in the subsider 29, is transferred out outside the system by concentrated solution thrust-augmenting nozzle 23, can further precipitate or reflux, because water outlet has certain pressure, pressure consumes loss in filtration procedure, but the water of drawing from the rising pipe 24 of purifying waste water, its water quality has but reached certain purity, and the biogas that discharges in filtration procedure reclaims the pressure biogas that is produced by residual gas recovery tube 21, after desulfurization is handled, offer the user through the pressure regulation delivery system 28 same residual gases that reclaim.The mud that produces in the wastewater treatment is discharged by sludge-discharge pipe 25, finishes the whole process of waste water pressure anaerobic biological treatment.

Claims

1, a kind of method of waste water pressure anaerobic biological treatment, utilized when handling waste water, the metabolism gaseous tension that anaerobion is generated in the growth metabolism process, equilibrium pressure for system, make waste water in the pressure environment system, obtain anaerobic biological treatment, utilized the pressure difference of water as power during water outlet again, treated water is further filtered, make the glassware for drinking water that has purified that higher purity be arranged, it is characterized in that: in the good stress reaction apparatus of airtight performance, when utilizing wastewater treatment, the metabolism gaseous tension that is generated in the anaerobion metabolic process, equilibrium pressure for system, in the pressure range of setting, waste water obtains anaerobic biological treatment in the pressure environment system, waste water after processed, further filter via the grid filtering layer, the suspended solids that residues in the waste water is almost all filtered out, and waste water is when the transmission grating filtering layer, and pressure is consumed, so not only effluent quality is thoroughly purified, the biogas that is generated simultaneously also has certain power, be pressure biogas, and water outlet is the water that high purity has purified.

2, a kind of reactor assembly of waste water pressure anaerobic biological treatment, has good airtight performance and stronger rigidity, be one the very tower shape reactor of larger ratio of height to diameter is arranged, inside is made up of bottom reaction zone and two unit of upper strata reaction zone, again with separately independently grid filters essence leach hydrophone and link, structure becomes the main body of reactor, it is characterized in that: shell of reactor is one the very airtight tower shape reactor assembly of larger ratio of height to diameter, suit to work having under the condition of pressure, middle sealing gland in the device is separated into bottom reaction zone and two unit of upper strata reaction zone with reactor, the duplex flow deflector is along the inner walls spin-up that makes progress, and form two spiral stream guidance chambeies, outlet is facing to top gas skirt, when the biogas that is produced floats to bottom reaction zone top when liter, biogas is collected by gas skirt, biogas rises along the spiral upspout, the spiral upspout is a composite bushing, the water return line leads to bottom reaction zone bottom in the interior dress, between interior water return line outer wall is with the spiral upspout, the winding screw riser is through to the top, link fixing with the gas-water separation cover, the biogas that rises promotes in the interlayer chamber of chamber formation at spiral, when the mixed solution of bottom reaction zone is risen to the backwater cover, gas-liquid separation, biogas enters collection chamber, drain by vapor pipe, the muddy water mixed solution of separating, to get back to the bottom of bottom reaction zone along return line, the waste water that process bottom reaction zone was handled, can enter into the upper strata reaction zone, continued to handle, the biogas that produces enters into collection chamber by going out air ring, being deflated pipe carries, waste water of being brought up and suspended solids, turn back to the upper strata reaction zone from backwater hole, enter the precipitation state, the supernatant liquor of handling, draw by rising pipe, entering into grid filter essence leaches among the hydrophone, built-in fibrous packing grid filtering layer, tightly encapsulated by the water outlet device shell, the supernatant liquor that sees through is further gone turbid purification, water outlet is when the transmission grating filtering layer, the suspended matter major part is filtered out, concentrated solution is deposited in the subsider, transfer out outside the system by the concentrated solution thrust-augmenting nozzle, further precipitation or backflow, because water outlet has certain pressure, pressure consumes loss when filtering, the water of drawing from the rising pipe of purifying waste water, water quality reaches certain purity, the biogas that in filtration procedure, discharges, reclaim by the residual gas recovery tube, the pressure biogas that is produced, after desulfurization, offer the user, the mud that produces in the wastewater treatment through the same residual gas that reclaims of pressure regulation delivery system, discharge by the spiral sludge discharge machine, finish the whole process of waste water pressure anaerobic biological treatment.

3, the reactor assembly of waste water pressure anaerobic biological treatment according to claim 2, it is characterized in that: the duplex deflector device is in the bottom reaction zone, along the housing spin-up that makes progress, and form two spiral stream guidance chambeies, housing integrative-structure with the bottom reaction zone, its spiral deflector is the simple helix flow deflector, duplex flow deflector, triple helical flow deflector, four spiral deflectors, and many spiral stream guidances plate structure, formed spiral stream guidance chamber is corresponding with spiral deflector quantity, is the simple helix diversion cavity, the duplex diversion cavity, the triple helical diversion cavity, four spiral stream guidance chambeies, and many spiral stream guidances chamber.

4, the reactor assembly of waste water pressure anaerobic biological treatment according to claim 2, it is characterized in that: the spiral upspout is the composite bushing structure, the gas skirt of compound pipeline section from linking to each other, become an integral body with the backwater cover structure, between interior water return line outer wall is with the spiral upspout, it is suitable for reading equal that the winding screw riser leads to return water pipe, and the formation spiral promotes interlayer chamber, chamber, the spiral riser that is twined is the simple helix riser, the duplex riser, the triple helical riser, four spiral risers, and many spirals riser, and corresponding formation simple helix promotes interlayer chamber, chamber, duplex promotes interlayer chamber, chamber, and triple helical promotes interlayer chamber, chamber, and four spirals promote interlayer chamber, chamber.

5, the reactor assembly of waste water pressure anaerobic biological treatment according to claim 3, it is characterized in that: the spiral stream guidance that is installed is a straight plate, and can be perpendicular to the axis direction device.

6, according to the reactor assembly of claim 2 or the biological treatment of 3 described waste water pressure anaerobics, it is characterized in that: when the quantity of duplex deflector device is abundant, can in housing, be interrupted, staggered symmetric arrangement, and be arranged in parallel, can play the shearing resistance of alleviation equally, also stop the generation of water circulation simultaneously mud granule.

7, according to the reactor assembly of claim 2,3 or 5 described waste water pressure anaerobic biological treatments, it is characterized in that: the spiral deflector that is installed can be applicable in the reaction zone of upper strata equally.

8, the reactor assembly of waste water pressure anaerobic biological treatment according to claim 4, it is characterized in that: the spiral riser that is installed is a straight plate, and can be perpendicular to spiral upspout axis direction device.

9, the reactor assembly of waste water pressure anaerobic biological treatment according to claim 2, it is characterized in that: reactor assembly can use separately, and the supernatant liquor of handling is directly discharged by rising pipe.

10, the reactor assembly of waste water pressure anaerobic biological treatment according to claim 2, it is characterized in that: set spiral deflector can not install this device.