CN101786716B - High-concentration difficult-degradation organic sewage treating system - Google Patents
High-concentration difficult-degradation organic sewage treating system Download PDFInfo
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- 238000006731 degradation reaction Methods 0.000 title claims abstract description 33
- 239000012528 membrane Substances 0.000 claims abstract description 163
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 85
- 238000001728 nano-filtration Methods 0.000 claims abstract description 71
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 65
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- 238000011069 regeneration method Methods 0.000 claims abstract description 54
- 241000894006 Bacteria Species 0.000 claims abstract description 39
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- 239000000126 substance Substances 0.000 claims description 42
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention relates to a high-concentration difficult-degradation organic sewage treating system which comprises an active ultrafiltration membrane bioreactor, a nanofiltration membrane assembly, an enrichment regeneration reactor and an active carrier that is added into the enrichment regeneration reactor and is cured with special bacteria, wherein a water inlet pipe of the active ultrafiltration membrane bioreactor is connected with a sewage pipe, a filtering pipe of the active ultrafiltration membrane bioreactor is connected with a water inlet pipe of the nanofiltration membrane assembly, a filtering pipe of the nanofiltration membrane assembly is connected with a recycling pipe; the nanofiltration membrane assembly is also provided with a concentrated solution outlet pipe connected with the enrichment regeneration reactor; and the enrichment regeneration reactor is provided with an enrichment water outlet pipe communicated with the active ultrafiltration membrane bioreactor, and the active ultrafiltration membrane bioreactor is provided with an active carrier return pipe connected with the enrichment regeneration reactor. The system not only can solve the problem that treated high-concentration difficult-degradation organic sewage does not reach the standard, but also can effectively remove a concentrated solution generated after the sewage is deeply treated, thereby avoiding secondary pollution.
Description
Technical field
The present invention relates to sewage disposal, particularly a kind of high-concentration difficult-degradation organic sewage treating system.
Background technology
Difficult-degradation organic sewage (also claiming organic waste water) has complicated component, the characteristics such as microbial nutrition element ratio imbalance.More and more pay close attention to the discharging of high-concentration difficult-degradation organic sewage along with various circles of society and environmental administration at different levels, the processing research of high-concentration difficult-degradation organic sewage seems particularly important.
The severe situation nervous due to current water resources and the water pollution aggravates, reusing sewage has become a kind of inexorable trend.In the advanced treatment and reuse of high-concentration difficult-degradation organic sewage, the main pair embrane methods that adopt are processed.But in the concentrated solution that produces after the high-concentration difficult-degradation organic sewage advanced treatment, hard-degraded substance concentration is high, for the further advanced treatment qualified discharge of concentrated solution, is the difficult problem that sewage disposal circle is both at home and abroad at present generally acknowledged.Produce in order effectively to solve the difficult-degradation organic sewage advanced treatment pollution problem that concentrated solution causes, all be devoted to the research and development of new technology both at home and abroad.
The present invention is directed to the problems such as in concentrated solution, hardly degraded organic substance concentration is high, intractability is large, research and develop out active membrane enrichment regeneration (MAC-CAR) treatment technology, this technology comprises active ultrafiltration membrane bioreactor (MAC), nanofiltration membrane (NF) and enrichment regeneration reactor, is effective combination of active ultrafiltration membrane bioreactor, nanofiltration membrane, active carrier and extraordinary bacterium.The MAC-CAR technological system can be realized the advanced treatment of high-concentration difficult-degradation organic sewage, effluent quality can reach " urban wastewater treatment firm pollutant emission standard " in (GB18918-2002) one-level A standard or relevant reuse standard, and after the concentrated solution that system produces process enrichment manipulation of regeneration, can effectively remove, can not cause secondary pollution.
Summary of the invention
The purpose of this invention is to provide a kind of high-concentration difficult-degradation organic sewage treating system, this system not only can solve high-concentration difficult-degradation organic sewage and process problem not up to standard, can also effectively remove the concentrated solution that produces in sewage treatment process.High-concentration difficult-degradation organic sewage is after this system processes, effluent quality can reach " urban wastewater treatment firm pollutant emission standard " in (GB18918-2002) one-level A standard or relevant reuse standard, saving water resource greatly, the thinking that meets energy-saving and emission-reduction and develop a circular economy.
Purpose of the present invention is achieved through the following technical solutions:
A kind of high-concentration difficult-degradation organic sewage treating system is characterized in that, comprises active ultrafiltration membrane bioreactor, nanofiltration membrane component and enrichment regeneration reactor and is added to the active carrier that is solidified with extraordinary bacterium in the enrichment regeneration reactor; The water inlet pipe of described active ultrafiltration membrane bioreactor is connected with waste pipe, and the water pipe that leaches of active ultrafiltration membrane bioreactor is connected with the water inlet pipe of nanofiltration membrane component, and the water pipe that leaches of nanofiltration membrane component is connected with the reuse water pipe; Also being provided with the concentrated solution rising pipe on described nanofiltration membrane component is connected with described enrichment regeneration reactor; Enrichment water rising pipe is set on described enrichment regeneration reactor is communicated with active ultrafiltration membrane bioreactor, the active carrier return line is set on active ultrafiltration membrane bioreactor is connected with the enrichment regeneration reactor.
Described extraordinary bacterium is for different high-concentration difficult-degradation organic sewages, and the superior strain of taming and filtering out is for the solvability hard-degraded substance of degraded organic sewage; Described active carrier has adsorption function, can adsorb most of solvability hard-degraded substance; Described extraordinary bacterium exists with stationary state and two kinds of forms of free state in reactor, the extraordinary bacterium of free state has broken away from active carrier, main degraded is not adsorbed on the solvability hard-degraded substance on active carrier, the extraordinary bacterium of stationary state still is adsorbed on active carrier, degraded is adsorbed in the solvability hard-degraded substance on active carrier, in the time of degraded, realize the regeneration of active carrier.
The water pipe that leaches of described active ultrafiltration membrane bioreactor is connected with the water inlet pipe of nanofiltration membrane component by the first cartridge filter 12, and described the first cartridge filter 12 ingresss establish chemicals dosing plant.
The water pipe that leaches of described active ultrafiltration membrane bioreactor is connected with the first cartridge filter 12 by suction pump 9, leaches on water pipe and pipeline that suction pump is connected liquid control valve 10 is set, and suction pump 9 water outlets arrange vacuum breaker 11; Described chemicals dosing plant is dosing volume pump 13, and dosing volume pump 13 is connected to the ingress of the first cartridge filter 12 by ball valve 14.
Describedly also be provided with on nanofiltration membrane component and concentrated solution rising pipe that the enrichment regeneration reactor is communicated with the water inlet pipe that the concentrated solution return line is connected to nanofiltration membrane component, make concentrated solution can be back to nanofiltration membrane component further concentrated; Liquid control valve 26 is set on the concentrated solution rising pipe, liquid control valve 25 is set on the concentrated solution return line; Described nanofiltration membrane component water inlet pipe place arranges high-pressure pump 15, on high-pressure pump 15 and pipeline that the nanofiltration membrane component water inlet pipe is connected, liquid control valve 16 is set.
Described nanofiltration membrane component also is provided with the on-line cleaning device, comprise grug feeding jar 33, flushing water pump 20 and the second cartridge filter 21, being provided with nanofiltration effluent recycling pipe with the reuse water pipe that leaches cross current of nanofiltration membrane component is connected with grug feeding jar 33, grug feeding jar 33 connects the second cartridge filter 21, the second cartridge filters 21 by flushing water pump 20 and connects the nanofiltration membrane component water inlet pipe.
On described reuse water pipe, liquid control valve 18 is set, on described nanofiltration effluent recycling pipe, liquid control valve 19 is set, the ingress of flushing water pump 20 and exit arrange respectively on liquid control valve 22 and vacuum breaker 23, the second cartridge filters 21 and pipeline that the nanofiltration membrane component water inlet pipe is connected liquid control valve 24 are set.
Described active ultrafiltration membrane bioreactor comprises membrane bioreactor and the described active carrier that is solidified with extraordinary bacterium; Described membrane bioreactor comprises the membrane module 6 that is arranged in reactor, and the bottom of described membrane module is provided with aerating apparatus; Membrane module and active ultrafiltration membrane bioreactor leach cross current.
Described active ultrafiltration membrane bioreactor arranges gas blower 5 outward, and described gas blower 5 is connected with membrane module by the pipeline with air control valve 8 and gas meter 7; Also be provided with upflow tube 30 and mud discharging/evacuated tube 31 on active ultrafiltration membrane bioreactor, on mud discharging/evacuated tube 31, mounting ball valve 32, control mud discharging and the pond body is emptying.
The described active carrier return line that active ultrafiltration membrane bioreactor is communicated with the enrichment regeneration reactor is provided with transferpump 27, and the ingress of transferpump 27 arranges liquid control valve 28, and the exit of transferpump 27 arranges vacuum breaker 29.
Technique effect of the present invention:
High-concentration difficult-degradation organic sewage treating system of the present invention is with active ultrafiltration membrane bioreactor, nanofiltration membrane component, active carrier and the effective combination of extraordinary bacterium, can not only realize the advanced treatment of high-concentration difficult-degradation organic sewage, effluent quality satisfies the reuse water standard, can also effectively remove the concentrated solution that produces in sewage treatment process simultaneously.Its advantage is:
(1) this system comprises active ultrafiltration membrane bioreactor and nanofiltration membrane component, also is provided with the enrichment regeneration reactor, adds the active carrier that is solidified with extraordinary bacterium in the enrichment regeneration reactor; At first sewage enter active ultrafiltration membrane bioreactor, by active biological film, the organism in sewage degraded, and realize mud-water separation completely; Then enter nanofiltration membrane component and carry out advanced treatment, hard-degraded substance is trapped in concentrated solution; Then concentrated solution is introduced the enrichment regeneration reactor and carried out enrichment, the enrichment regeneration reactor is under anaerobic state, the adsorptivity of the active carrier by being solidified with extraordinary bacterium makes biological floe in concentrated solution, disperses colloid and solvability hard-degraded substance to be adsorbed enrichment, extend the residence time of hardly degraded organic substance, concentrated solution after enrichment is back to active ultrafiltration membrane bioreactor and proceeds degraded, make simultaneously active carrier regeneration, the active carrier after regeneration is delivered to the enrichment regeneration reactor again and re-uses.Therefore the organic sewage of processing through this system, not only effluent quality can reach final emission request, and can make the active carrier in system be in optimum equilibrium state, make the absorption degradation process continue to carry out, can remove the concentrated solution of output after advanced treatment fully, can not cause secondary pollution, and saving water resource greatly.
(2) the present invention is directed to the high characteristics of hard-degraded substance concentration in the concentrated solution of sewage output after advanced treatment, the extraordinary bacterium of the degraded of the high-quality of taming and filtering out, be solidificated in the extraordinary bacterium on active carrier, after being added to the enrichment regeneration reactor, exist with stationary state and two kinds of forms of free state, the extraordinary bacterium of stationary state still is adsorbed on active carrier, can effectively degrade to be adsorbed in solvability hard-degraded substance on active carrier, and make active carrier regeneration, continue the performance adsorption function; The extraordinary bacterium of free state has broken away from active carrier, the solvability hard-degraded substance that is not adsorbed by active carrier in the degradable reactor.Therefore, the extraordinary bacterium that is solidificated on active carrier is added in the concentrated solution that contains the high-concentration hardly-degradable material, has given full play to the function of its degraded absorption, effectively removed the solvability hard-degraded substance in the concentrated solution.
(3) active ultrafiltration membrane bioreactor is the aerobic treatment stage of system, membrane bioreactor and the combination that is solidified with the active carrier of extraordinary bacterium, extraordinary bacterium in active ultrafiltration membrane bioreactor is also to exist with stationary state and two kinds of forms of free state, the solvability hard-degraded substance that the extraordinary bacterium of free state is mainly degraded and is not adsorbed, extraordinary bacterium is adsorbed on active carrier stationary state, being conducive to extraordinary bacterium on the one hand degrades to the solvability hard-degraded substance that is adsorbed on active carrier, the process of degraded is the regenerative process of active carrier, continuous circulations both, active carrier can also adsorb biological floe, colloid on the other hand, can improve the performance of active sludge, the decelerating membrane pollution process, and reduce excess sludge production.The membrane module bottom that is arranged on simultaneously membrane bioreactor inside is provided with aerating apparatus, except satisfying the oxygen requirement of active ultrafiltration membrane bioreactor, can also wash away the materials such as microorganism, colloid and biological floe of film surface attachment, decelerating membrane pollution; Active ultrafiltration membrane bioreactor water outlet is extracted out by suction pump, and active sludge and large particulate matter still are retained in reactor, make reactor be in the high sludge concentration state, are conducive to reduce sludge loading, improves processing efficiency.
(4) nanofiltration membrane component is the advanced treatment stage of system, and mainly removing diameter is the solute particles of 1 nanometer (nm) left and right, and molecular weight cut-off is 100～1000 organism, is mainly used in removing organism and hardness in water treatment field.For making the more effective removal of concentrated solution, also be provided with the concentrated solution return line on nanofiltration membrane, make concentrated solution further concentrated, be conducive to the enrichment in the enrichment regeneration reactor.Nanofiltration membrane component also is provided with the on-line cleaning device, to extend the work-ing life of nanofiltration membrane component.
(5) the enrichment regeneration reactor that arranges is in anaerobic state, the adsorptivity that is conducive to active carrier, make biological floe in concentrated solution, disperse colloid and being partly dissolved property material is more effective is adsorbed on active carrier, thereby extended the residence time of solvability hard-degraded substance in reactor, also improve the performance of the interior active sludge of membrane bioreactor (MBR), slowed down simultaneously the film contamination phenomenon;
(6) by the adsorption of active carrier, make membrane module keep higher membrane flux, the gas-water ratio that adopts has reduced energy consumption lower than simple membrane bioreactor.
Description of drawings
Fig. 1 is system architecture schematic diagram of the present invention.
Fig. 2 is the system construction drawing of the embodiment of the present invention.
Reference numeral lists as follows:
the active ultrafiltration membrane bioreactor of 1-, the 2-nanofiltration membrane component, 3-enrichment regeneration reactor, the 4-water inlet pipe, the 5-gas blower, the 6-membrane module, the 7-gas meter, the 8-air control valve, the 9-suction pump, the 10-liquid control valve, the 11-vacuum breaker, 12-the first cartridge filter, 13-dosing volume pump, the 14-ball valve, the 15-high-pressure pump, the 16-liquid control valve, the 17-rising pipe, the 18-liquid control valve, the 19-liquid control valve, the 20-flushing water pump, 21-the second cartridge filter, the 22-liquid control valve, the 23-vacuum breaker, the 24-liquid control valve, the 25-liquid control valve, the 26-liquid control valve, the 27-transferpump, the 28-liquid control valve, the 29-vacuum breaker, the 30-upflow tube, 31-mud discharging/evacuated tube, the 32-ball valve, the 33-grug feeding jar.
Embodiment
Below in conjunction with the description of drawings embodiments of the invention:
As shown in Figure 1, a kind of high-concentration difficult-degradation organic sewage treating system comprises active ultrafiltration membrane bioreactor, nanofiltration membrane component and enrichment regeneration reactor and is added to the active carrier that is solidified with extraordinary bacterium in the enrichment regeneration reactor; The water inlet pipe of active ultrafiltration membrane bioreactor is connected with waste pipe, and the water pipe that leaches of active ultrafiltration membrane bioreactor is connected with the water inlet pipe of nanofiltration membrane component, and the water pipe that leaches of nanofiltration membrane component is connected with the reuse water pipe; Also being provided with the concentrated solution rising pipe on described nanofiltration membrane component is communicated with described enrichment regeneration reactor; Enrichment water rising pipe also is set on described enrichment regeneration reactor connects active ultrafiltration membrane bioreactor; On active ultrafiltration membrane bioreactor, the active carrier return line being set is communicated with the enrichment regeneration reactor.
Described extraordinary bacterium is for different high-concentration difficult-degradation organic sewages, and the superior strain of taming and filtering out is for the solvability hard-degraded substance of degraded organic sewage; Described active carrier has adsorption function, can adsorb most of solvability hard-degraded substance; After the described active carrier that is solidified with extraordinary bacterium enters reactor, the extraordinary bacterium of part breaks away from active carrier, exist with the free state form, main degraded is not attracted to the solvability hard-degraded substance on active carrier, the extraordinary bacterium of another part still is adsorbed on active carrier with the stationary state form, and degraded is adsorbed in the solvability hard-degraded substance on active carrier, in the time of degraded, realize the regeneration of active carrier, continue on for the enrichment of hard-degraded substance in concentrated solution.
As shown in Figure 2, in the aerobic treatment stage that active ultrafiltration membrane bioreactor 1 is system, active ultrafiltration membrane bioreactor comprises membrane bioreactor and the described active carrier that is solidified with extraordinary bacterium; Membrane bioreactor comprises the membrane module 6 that is arranged in reactor.Described extraordinary bacterium in membrane bioreactor, is also to exist with stationary state and two kinds of forms of free state, and active carrier has adsorption function, adsorbs most of solvability hard-degraded substance; The extraordinary bacterium of free state has broken away from active carrier, main degraded is not attracted to the solvability hard-degraded substance on active carrier, extraordinary bacterium is adsorbed on active carrier stationary state, being conducive to extraordinary bacterium on the one hand degrades to the solvability hard-degraded substance that is adsorbed on active carrier, the process of degraded is the regenerative process of active carrier, continuous circulations both, active carrier can also adsorb biological floe, colloid on the other hand, can improve the performance of active sludge, the decelerating membrane pollution process, and reduce excess sludge production.The bottom of membrane module is provided with aerating apparatus, except satisfying the oxygen requirement of active ultrafiltration membrane bioreactor, can also wash away the materials such as microorganism, colloid and biological floe of film surface attachment, decelerating membrane pollution.Membrane module and active ultrafiltration membrane bioreactor leach cross current, leach suction pump 9 is set on water pipe, the filtrate of active ultrafiltration membrane bioreactor is extracted out from membrane module 6 by suction pump 9, active sludge and large particulate matter still are retained in reactor, make reactor be in the high sludge concentration state, be conducive to reduce sludge loading, improve processing efficiency; Leach on water pipe and pipeline that suction pump is connected liquid control valve 10 is set, the aquifer yield of the filtrate of extracting out from the membrane module of active ultrafiltration membrane bioreactor is controlled by liquid control valve 10, and suction pump 9 water outlets arrange vacuum breaker 11, prevents that water outlet from pouring in down a chimney.
The water pipe that leaches of described active ultrafiltration membrane bioreactor is connected with the water inlet pipe of nanofiltration membrane component by the first cartridge filter 12, and described the first cartridge filter 12 ingresss establish chemicals dosing plant.The import that leaches water pipe connection the first cartridge filter 12 of active ultrafiltration membrane bioreactor, filtrate enters the first cartridge filter 12 after extracting out; The first cartridge filter 12 ingresss establish chemicals dosing plant, be used for the drainage that the cleaning action ultrafiltration membrane bioreactor is extracted out, chemicals dosing plant is dosing volume pump 13, dosing volume pump 13 is connected to the ingress of the first cartridge filter by ball valve 14, chemical feeding quantity is controlled by dosing volume pump 13 and ball valve 14.The outlet of the first cartridge filter 12 is connected with the water inlet pipe of nanofiltration membrane component, and the filtrate of active ultrafiltration membrane bioreactor enters nanofiltration membrane component after the first cartridge filter 12 filters.
Nanofiltration membrane component 2 is advanced treatment stages of system, mainly removes diameter and be the solute particles of 1 nanometer left and right, and molecular weight cut-off is 100～1000 organism; The nanofiltration water outlet of processing through nanofiltration membrane component reaches the discharging reuse standard, carries out reuse by rising pipe 17.
The concentrated solution that nanofiltration membrane component is held back enters the enrichment regeneration reactor by the concentrated solution rising pipe, liquid control valve 26 is set on the concentrated solution rising pipe, the flooding quantity that enters the enrichment regeneration reactor is controlled by liquid control valve 26, also be provided with the water inlet pipe that the concentrated solution return line is connected to nanofiltration membrane component on the concentrated solution rising pipe, make a part in concentrated solution can be back to nanofiltration membrane component further concentrated; Liquid control valve 25 is set on the concentrated solution return line, and quantity of reflux is controlled by liquid control valve 25.
Nanofiltration membrane component water inlet pipe place arranges high-pressure pump 15, on high-pressure pump 15 and pipeline that the nanofiltration membrane component water inlet pipe is connected, liquid control valve 16 is set; The water outlet that the first cartridge filter 12 filters and the concentrated solution of backflow enter nanofiltration membrane component after high-pressure pump 15 superchargings, flooding quantity is controlled by liquid control valve 16,
Nanofiltration membrane component is provided with the on-line cleaning device, comprise grug feeding jar 33, flushing water pump 20 and the second cartridge filter 21, being provided with nanofiltration effluent recycling pipe with reuse water rising pipe 17 that nanofiltration membrane component leaches cross current is connected with grug feeding jar 33, grug feeding jar 33 connects the second cartridge filter 21, the second cartridge filters 21 by flushing water pump 20 and is connected with the water inlet pipe of nanofiltration membrane component.
Liquid control valve 18 is set on reuse water pipe 17, on nanofiltration effluent recycling pipe, liquid control valve 19 is set, nanofiltration effluent recycling amount is controlled by liquid control valve 18, the water yield that is used for molten medicine is controlled by liquid control valve 19, scavenging solution in grug feeding jar enters cartridge filter by flushing water pump 20, the ingress of flushing water pump 20 and exit arrange respectively liquid control valve 22 and vacuum breaker 23, enter after scavenging solution filters through the second cartridge filter 21 on nanofiltration membrane component 2, the second cartridge filters 21 and pipeline that the nanofiltration membrane component water inlet pipe is connected liquid control valve 24 is set; Control enters the cleaning water yield of nanofiltration membrane component.
the enrichment rising pipe that arranges on enrichment regeneration reactor 3 is communicated with active ultrafiltration membrane bioreactor, the active carrier return line is set on active ultrafiltration membrane bioreactor is connected with the enrichment regeneration reactor, the active carrier that is solidified with extraordinary bacterium directly is added in enrichment regeneration reactor 3, enrichment regeneration reactor 3 carries out adsorption and enrichment to the hard-degraded substance in concentrated solution under anaerobic state, extended the residence time of solvability hard-degraded substance in reactor, then enter in active ultrafiltration membrane bioreactor 1 by the enrichment rising pipe and carry out aerobic treatment, when hard-degraded substance is degraded, active carrier is regenerated, active carrier after regeneration is delivered to the enrichment regeneration reactor by the active carrier return line from active ultrafiltration membrane bioreactor and re-uses, the active carrier return line is provided with transferpump 27, the ingress of transferpump 27 arranges liquid control valve 28, operational throughput is controlled by liquid control valve 28, the exit of transferpump 27 arranges vacuum breaker 29, prevent from recharging.
In addition, active ultrafiltration membrane bioreactor arranges gas blower 5 outward, and gas blower 5 is connected with membrane module by the pipeline with air control valve 8 and gas meter 7; Active ultrafiltration membrane bioreactor is by gas blower 5 oxygen supply aerations, and aeration rate is by gas meter 7 meterings, and air control valve 8 is controlled; Effectively wash away simultaneously the materials such as the microorganism of membrane module 6 surface attachment and colloid.Also be provided with upflow tube 30 and mud discharging/evacuated tube 31 on active ultrafiltration membrane bioreactor, on mud discharging/evacuated tube 31, mounting ball valve 32, control mud discharging and the pond body is emptying, so that the normal operation and maintenance maintenance of equipment in active ultrafiltration membrane bioreactor 1.
Should be pointed out that the above embodiment can make the invention of those skilled in the art's comprehend, but do not limit the present invention in any way creation.Therefore, although this specification sheets has been described in detail the invention with reference to drawings and Examples,, it will be appreciated by those skilled in the art that still and can modify or be equal to replacement the invention; And all do not break away from technical scheme and the improvement thereof of the spirit and scope of the invention, and it all is encompassed in the middle of the protection domain of the invention patent.
Claims (10)
1. a high-concentration difficult-degradation organic sewage treating system, is characterized in that, comprises active ultrafiltration membrane bioreactor, nanofiltration membrane component and enrichment regeneration reactor and be added to the active carrier that is solidified with extraordinary bacterium in the enrichment regeneration reactor; The water inlet pipe of described active ultrafiltration membrane bioreactor is connected with waste pipe, and the water pipe that leaches of active ultrafiltration membrane bioreactor is connected with the water inlet pipe of nanofiltration membrane component, and the water pipe that leaches of nanofiltration membrane component is connected with the reuse water pipe; Also being provided with the concentrated solution rising pipe on described nanofiltration membrane component is connected with described enrichment regeneration reactor; The enrichment rising pipe is set on described enrichment regeneration reactor is communicated with active ultrafiltration membrane bioreactor, the active carrier return line is set on active ultrafiltration membrane bioreactor is connected with the enrichment regeneration reactor; The active carrier that is solidified with extraordinary bacterium directly is added in the enrichment regeneration reactor, the enrichment regeneration reactor carries out adsorption and enrichment to the hard-degraded substance in concentrated solution under anaerobic state, extended the residence time of solvability hard-degraded substance in reactor, then enter by the enrichment rising pipe and carry out aerobic treatment in active ultrafiltration membrane bioreactor, when hard-degraded substance is degraded, active carrier is regenerated, and the active carrier after regeneration is delivered to the enrichment regeneration reactor by the active carrier return line from active ultrafiltration membrane bioreactor and re-uses.
2. high-concentration difficult-degradation organic sewage treating system according to claim 1, it is characterized in that, described extraordinary bacterium is for different high-concentration difficult-degradation organic sewages, and the superior strain of taming and filtering out is for the solvability hard-degraded substance of degraded organic sewage; Described active carrier has adsorption function, can adsorb most of solvability hard-degraded substance; Described extraordinary bacterium exists with stationary state and two kinds of forms of free state in reactor, the extraordinary bacterium of free state has broken away from active carrier, main degraded is not adsorbed on the solvability hard-degraded substance on active carrier, the extraordinary bacterium of stationary state still is adsorbed on active carrier, degraded is adsorbed in the solvability hard-degraded substance on active carrier, in the time of degraded, realize the regeneration of active carrier.
3. high-concentration difficult-degradation organic sewage treating system according to claim 2, it is characterized in that, the water pipe that leaches of described active ultrafiltration membrane bioreactor is connected with the water inlet pipe of nanofiltration membrane component by the first cartridge filter (12), and described the first cartridge filter (12) ingress establishes chemicals dosing plant.
4. high-concentration difficult-degradation organic sewage treating system according to claim 3, it is characterized in that, the water pipe that leaches of described active ultrafiltration membrane bioreactor is connected with the first cartridge filter (12) by suction pump (9), leach on water pipe and pipeline that suction pump is connected first liquid variable valve (10) is set, suction pump (9) water outlet arranges the first vacuum breaker (11); Described chemicals dosing plant is dosing volume pump (13), and dosing volume pump (13) is connected to the ingress of the first cartridge filter (12) by the first ball valve (14).
5. high-concentration difficult-degradation organic sewage treating system according to claim 3, it is characterized in that, describedly also be provided with on nanofiltration membrane component and concentrated solution rising pipe that the enrichment regeneration reactor is communicated with the water inlet pipe that the concentrated solution return line is connected to nanofiltration membrane component, make concentrated solution can be back to nanofiltration membrane component further concentrated; The 8th liquid control valve (26) is set on the concentrated solution rising pipe, the 7th liquid control valve (25) is set on the concentrated solution return line; Described nanofiltration membrane component water inlet pipe place arranges high-pressure pump (15), on high-pressure pump (15) and pipeline that the nanofiltration membrane component water inlet pipe is connected, second liquid variable valve (16) is set.
6. high-concentration difficult-degradation organic sewage treating system according to claim 3, it is characterized in that, described nanofiltration membrane component also is provided with the on-line cleaning device, comprise grug feeding jar (33), flushing water pump (20) and the second cartridge filter (21), being provided with nanofiltration effluent recycling pipe with the reuse water pipe that leaches cross current of nanofiltration membrane component is connected with grug feeding jar (33), grug feeding jar (33) connects the second cartridge filter (21) by flushing water pump (20), and the second cartridge filter (21) connects the nanofiltration membrane component water inlet pipe.
7. high-concentration difficult-degradation organic sewage treating system according to claim 6, it is characterized in that, the 3rd liquid control valve (18) is set on described reuse water pipe, on described nanofiltration effluent recycling pipe, the 4th liquid control valve (19) is set, the ingress of flushing water pump (20) and exit arrange respectively the 5th liquid control valve (22) and the second vacuum breaker (23), on the second cartridge filter (21) and pipeline that the nanofiltration membrane component water inlet pipe is connected, the 6th liquid control valve (24) are set.
8. high-concentration difficult-degradation organic sewage treating system according to claim 2, is characterized in that, described active ultrafiltration membrane bioreactor comprises membrane bioreactor and the described active carrier that is solidified with extraordinary bacterium; Described membrane bioreactor comprises the membrane module (6) that is arranged in reactor, and described membrane module bottom is provided with aerating apparatus; The water pipe that leaches of active ultrafiltration membrane bioreactor is communicated with membrane module.
9. high-concentration difficult-degradation organic sewage treating system according to claim 8, it is characterized in that, described active ultrafiltration membrane bioreactor arranges gas blower (5) outward, and described gas blower (5) is connected with membrane module by the pipeline of band air control valve (8) and gas meter (7); Also be provided with upflow tube (30) and mud discharging/evacuated tube (31) on active ultrafiltration membrane bioreactor, upper the second ball valve (32) of installing of mud discharging/evacuated tube (31) is controlled mud discharging and the pond body is emptying.
10. high-concentration difficult-degradation organic sewage treating system according to claim 2, it is characterized in that, the described active carrier return line that active ultrafiltration membrane bioreactor is connected with the enrichment regeneration reactor is provided with transferpump (27), the ingress of transferpump (27) arranges the 9th liquid control valve (28), and the exit of transferpump (27) arranges the 3rd vacuum breaker (29).
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| CN201010111436XA CN101786716B (en) | 2010-02-10 | 2010-02-10 | High-concentration difficult-degradation organic sewage treating system |
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| CN102601111A (en) * | 2012-02-15 | 2012-07-25 | 王颋军 | Process control and monitoring system used for in situ bioremediation of contaminated land |
| CN103723891A (en) * | 2014-01-09 | 2014-04-16 | 上海世渊环保科技有限公司 | High-concentration organic wastewater treatment method and system |
| CN106399201A (en) * | 2016-11-10 | 2017-02-15 | 天津工业大学 | High-efficiency enrichment culture method of Pseudomonas aeruginosa |
| CN113023885B (en) * | 2021-04-07 | 2022-06-07 | 知和环保科技有限公司 | Process for directionally strengthening sludge and application method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1970474A (en) * | 2006-12-11 | 2007-05-30 | 深圳市金达莱环保股份有限公司 | Garbage leachate processing process and system based on membrane bioreactor-nano filtering membrane technology |
| CN101575160A (en) * | 2009-06-11 | 2009-11-11 | 德威华泰（北京）科技有限公司 | Device for treating organic wastewater by active film bioreactor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1970474A (en) * | 2006-12-11 | 2007-05-30 | 深圳市金达莱环保股份有限公司 | Garbage leachate processing process and system based on membrane bioreactor-nano filtering membrane technology |
| CN101575160A (en) * | 2009-06-11 | 2009-11-11 | 德威华泰（北京）科技有限公司 | Device for treating organic wastewater by active film bioreactor |
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