CN101786716A - High-concentration difficult-degradation organic sewage treating system - Google Patents
High-concentration difficult-degradation organic sewage treating system Download PDFInfo
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- 239000010865 sewage Substances 0.000 title claims abstract description 43
- 238000006731 degradation reaction Methods 0.000 title claims abstract description 33
- 239000012528 membrane Substances 0.000 claims abstract description 161
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 86
- 238000001728 nano-filtration Methods 0.000 claims abstract description 71
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 63
- 230000008929 regeneration Effects 0.000 claims abstract description 51
- 238000011069 regeneration method Methods 0.000 claims abstract description 51
- 241000894006 Bacteria Species 0.000 claims abstract description 41
- 238000004064 recycling Methods 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 43
- 239000000126 substance Substances 0.000 claims description 38
- 230000000630 rising effect Effects 0.000 claims description 17
- 238000007599 discharging Methods 0.000 claims description 12
- 238000011010 flushing procedure Methods 0.000 claims description 11
- 238000001179 sorption measurement Methods 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000000593 degrading effect Effects 0.000 claims description 4
- 239000012141 concentrate Substances 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 239000010802 sludge Substances 0.000 description 11
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- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 8
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
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- 238000005273 aeration Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000002000 scavenging effect Effects 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
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- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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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
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- Separation Using Semi-Permeable Membranes (AREA)
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, characteristics such as microbial nutrition element ratio imbalance.Along with various circles of society and environmental administration at different levels more and more pay close attention to the discharging of high-concentration difficult-degradation organic sewage, the processing research of high-concentration difficult-degradation organic sewage seems particularly important.
Because current water resources is nervous and water pollutes the severe situation of aggravation, 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 handled.But in the concentrated solution that produces after the high-concentration difficult-degradation organic sewage advanced treatment, hard-degraded substance concentration height 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 the pollution problem that concentrated solution causes in order to solve the difficult-degradation organic sewage advanced treatment effectively, all be devoted to Research on New and exploitation both at home and abroad.
The present invention is directed to problems such as hardly degraded organic substance concentration height in the concentrated solution, intractability be big, 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 the 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 handle problem not up to standard, can also effectively remove the concentrated solution that produces in the sewage treatment process.High-concentration difficult-degradation organic sewage is after this system handles, effluent quality can reach " urban wastewater treatment firm pollutant emission standard " in (GB18918-2002) one-level A standard or relevant reuse standard, conserve 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, nanofiltration membrane component leach water pipe and reuse water pipe coupling; Also being provided with the concentrated solution rising pipe on the described nanofiltration membrane component is connected with described enrichment regeneration reactor; Enrichment water rising pipe is set on the described enrichment regeneration reactor is communicated with, the active carrier return line is set on the active ultrafiltration membrane bioreactor is connected with the enrichment regeneration reactor with active ultrafiltration membrane bioreactor.
Described extraordinary bacterium is at different high-concentration difficult-degradation organic sewages, the degraded dominant bacteria of taming and filtering out, the solvability hard-degraded substance of the organic sewage that is used for degrading; 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 the active carrier, the extraordinary bacterium of stationary state still is adsorbed on the active carrier, degraded is adsorbed in the solvability hard-degraded substance on the 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 first security personnel's strainer 12, and described first strainer 12 ingresss of ensuring public security establish chemicals dosing plant.
The water pipe that leaches of described active ultrafiltration membrane bioreactor is connected by suction pump 9 and first security personnel's strainer 12, leaches on water pipe and the pipeline that suction pump is connected liquid control valve 10 is set, and suction pump 9 water outlets are provided with vacuum breaker 11; Described chemicals dosing plant is a dosing volume pump 13, and dosing volume pump 13 is connected to the ingress of first security personnel's strainer 12 by ball valve 14.
Describedly also be provided 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 and further concentrate on nanofiltration membrane component and the concentrated solution rising pipe that the enrichment regeneration reactor is communicated with; 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 is provided with high-pressure pump 15, on high-pressure pump 15 and the 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 second security personnel's strainer 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 second security personnel's strainer, 21, the second security personnel's strainers 21 by flushing water pump 20 and connects the nanofiltration membrane component water inlet pipe.
On the described reuse water pipe liquid control valve 18 is set, on the described nanofiltration effluent recycling pipe liquid control valve 19 is set, the ingress of flushing water pump 20 and exit are provided with respectively on liquid control valve 22 and vacuum breaker 23, the second security personnel's strainers 21 and the 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 the 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 is provided with gas blower 5 outward, and described gas blower 5 links to each other 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 the active ultrafiltration membrane bioreactor, mounting ball valve 32 on mud discharging/evacuated tube 31, control mud discharging and pond body 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 is provided with liquid control valve 28, and the exit of transferpump 27 is provided with 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 the 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; Sewage at first enters active ultrafiltration membrane bioreactor, by active biological film the organism in the sewage is degraded, and realizes mud-water separation completely; Enter nanofiltration membrane component then and carry out advanced treatment, hard-degraded substance is trapped in the 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 the concentrated solution, disperses colloid and solvability hard-degraded substance to be adsorbed enrichment, prolong the residence time of hardly degraded organic substance, concentrated solution after the enrichment is back to active ultrafiltration membrane bioreactor and proceeds degraded, make active carrier regeneration simultaneously, the active carrier after the regeneration is delivered to the enrichment regeneration reactor again and utilizes again.So organic sewage of this system handles of process, not only effluent quality can reach final emission request, and can make the active carrier in the system be in benign equilibrium state, make the absorption degradation process continue to carry out, can remove the concentrated solution of output after the advanced treatment fully, can not cause secondary pollution, and conserve 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, domestication and the fine that the filters out extraordinary bacterium of degrading, be solidificated in the extraordinary bacterium on the 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 the active carrier, can effectively degrade to be adsorbed in solvability hard-degraded substance on the 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 the 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, be membrane bioreactor and the combination that is solidified with the active carrier of extraordinary bacterium, extraordinary bacterium in the active ultrafiltration membrane bioreactor also is 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 the active carrier stationary state, helping extraordinary bacterium on the one hand degrades to the solvability hard-degraded substance that is adsorbed on the active carrier, the process of degraded is the regenerative process of active carrier, and the two circulates continuously; 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 membrane bioreactor inside simultaneously 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 the reactor, make reactor be in high sludge concentration state, help reducing sludge loading, improves processing efficiency.
(4) nanofiltration membrane component is the advanced treatment stage of system, mainly removes diameter and be the solute particle about 1 nanometer (nm), and molecular weight cut-off is 100～1000 organism, is mainly used in water treatment field and removes organism and hardness.For making the more effective removal of concentrated solution, also be provided with the concentrated solution return line on the nanofiltration membrane, concentrated solution is further concentrated, help the enrichment in the enrichment regeneration reactor.Nanofiltration membrane component also is provided with the on-line cleaning device, to prolong the work-ing life of nanofiltration membrane component.
(5) the enrichment regeneration reactor of She Zhiing is in anaerobic state, the adsorptivity that helps active carrier, make biological floe in the concentrated solution, disperse colloid and being partly dissolved property material is more effective is adsorbed on the active carrier, thereby prolonged 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 the film contamination phenomenon simultaneously;
(6) by the adsorption of active carrier, make membrane module keep higher membrane flux, the gas-water ratio that is adopted is lower than simple membrane bioreactor, has reduced energy consumption.
Description of drawings
Fig. 1 is a system architecture synoptic diagram of the present invention.
Fig. 2 is the system construction drawing of the embodiment of the invention.
Reference numeral lists as follows:
The active ultrafiltration membrane bioreactor of 1-, 2-nanofiltration membrane component, 3-enrichment regeneration reactor, the 4-water inlet pipe, 5-gas blower, 6-membrane module, the 7-gas meter, 8-air control valve, 9-suction pump, the 10-liquid control valve, 11-vacuum breaker, 12-first security personnel's strainer, 13-dosing volume pump, 14-ball valve, 15-high-pressure pump, the 16-liquid control valve, 17-rising pipe, 18-liquid control valve, the 19-liquid control valve, 20-flushing water pump, 21-second security personnel's strainer, the 22-liquid control valve, 23-vacuum breaker, 24-liquid control valve, the 25-liquid control valve, 26-liquid control valve, 27-transferpump, the 28-liquid control valve, the 29-vacuum breaker, 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, nanofiltration membrane component leach water pipe and reuse water pipe coupling; Also being provided with the concentrated solution rising pipe on the described nanofiltration membrane component is communicated with described enrichment regeneration reactor; Enrichment water rising pipe also is set on the described enrichment regeneration reactor connects active ultrafiltration membrane bioreactor; On the active ultrafiltration membrane bioreactor active carrier return line being set is communicated with the enrichment regeneration reactor.
Described extraordinary bacterium is at different high-concentration difficult-degradation organic sewages, the degraded dominant bacteria of taming and filtering out, the solvability hard-degraded substance of the organic sewage that is used for degrading; 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 the active carrier, the extraordinary bacterium of another part still is adsorbed on the active carrier with the stationary state form, and degraded is adsorbed in the solvability hard-degraded substance on the active carrier, in the time of degraded, realize the regeneration of active carrier, continue on for the enrichment of hard-degraded substance in the concentrated solution.
As shown in Figure 2, in the aerobic treatment stage that active ultrafiltration membrane bioreactor 1 is a 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 the reactor.Described extraordinary bacterium also is to exist with stationary state and two kinds of forms of free state in membrane bioreactor, 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 the active carrier, extraordinary bacterium is adsorbed on the active carrier stationary state, helping extraordinary bacterium on the one hand degrades to the solvability hard-degraded substance that is adsorbed on the active carrier, the process of degraded is the regenerative process of active carrier, the two circulates continuously, 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 the 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 the reactor, make reactor be in high sludge concentration state, help reducing sludge loading, improve processing efficiency; Leach on water pipe and the 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 by liquid control valve 10 controls, and suction pump 9 water outlets are provided with 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 first security personnel's strainer 12, and described first strainer 12 ingresss of ensuring public security establish chemicals dosing plant.The import of filtrate pipe coupling first security personnel's strainer 12 of active ultrafiltration membrane bioreactor enters first security personnel's strainer 12 after filtrate is extracted out; First security personnel's strainer, 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 a dosing volume pump 13, dosing volume pump 13 is connected to the ingress of first security personnel's strainer by ball valve 14, adds dose and controls by dosing volume pump 13 and ball valve 14.The outlet of first security personnel's strainer 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 first security personnel's strainer 12 filters.
Nanofiltration membrane component 2 is advanced treatment stages of system, and mainly removing diameter is 1 solute particle about nanometer, and molecular weight cut-off is 100～1000 organism; The nanofiltration water outlet of handling 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 by liquid control valve 26 controls, 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 the concentrated solution can be back to nanofiltration membrane component and further concentrate; Liquid control valve 25 is set on the concentrated solution return line, and quantity of reflux is by liquid control valve 25 controls.
Nanofiltration membrane component water inlet pipe place is provided with high-pressure pump 15, on high-pressure pump 15 and the pipeline that the nanofiltration membrane component water inlet pipe is connected liquid control valve 16 is set; The concentrated solution of first security personnel's strainer 12 filtering water outlets and backflow enters 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 second security personnel's strainer 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 second security personnel's strainer, 21, the second security personnel's strainers 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 the reuse water pipe 17, on the nanofiltration effluent recycling pipe liquid control valve 19 is set, nanofiltration effluent recycling amount is by liquid control valve 18 controls, the water yield that is used for molten medicine is by liquid control valve 19 controls, scavenging solution in the grug feeding jar enters security personnel's strainer by flushing water pump 20, the ingress of flushing water pump 20 and exit are provided with liquid control valve 22 and vacuum breaker 23 respectively, enter after scavenging solution filters through second security personnel's strainer 21 on nanofiltration membrane component 2, the second security personnel's strainers 21 and the pipeline that the nanofiltration membrane component water inlet pipe is connected liquid control valve 24 is set; The cleaning water yield that control enters nanofiltration membrane component.
The enrichment rising pipe that is provided with on the enrichment regeneration reactor 3 is communicated with active ultrafiltration membrane bioreactor, the active carrier return line is set on the 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 3, enrichment regeneration reactor 3 carries out adsorption and enrichment to the hard-degraded substance in the concentrated solution under anaerobic state, prolonged the residence time of solvability hard-degraded substance in reactor, enter in the active ultrafiltration membrane bioreactor 1 by the enrichment rising pipe then and carry out aerobic treatment, active carrier obtained regeneration when hard-degraded substance was degraded, active carrier after the regeneration is delivered to the enrichment regeneration reactor by the active carrier return line from active ultrafiltration membrane bioreactor and utilizes again, the active carrier return line is provided with transferpump 27, the ingress of transferpump 27 is provided with liquid control valve 28, operational throughput is by liquid control valve 28 controls, the exit of transferpump 27 is provided with vacuum breaker 29, prevents to recharge.
In addition, active ultrafiltration membrane bioreactor is provided with gas blower 5 outward, and gas blower 5 links to each other with membrane module by the pipeline of band 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 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 the active ultrafiltration membrane bioreactor, mounting ball valve 32 on mud discharging/evacuated tube 31, control mud discharging and pond body emptying, so that the normal operation and the Maintenance and Repair of equipment in the active ultrafiltration membrane bioreactor 1.
Should be pointed out that the above embodiment can make those skilled in the art more fully understand the invention, 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 make amendment or be equal to replacement the invention; And all do not break away from the 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 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, nanofiltration membrane component leach water pipe and reuse water pipe coupling; Also being provided with the concentrated solution rising pipe on the described nanofiltration membrane component is connected with described enrichment regeneration reactor; Enrichment water rising pipe is set on the described enrichment regeneration reactor is communicated with, the active carrier return line is set on the active ultrafiltration membrane bioreactor is connected with the enrichment regeneration reactor with active ultrafiltration membrane bioreactor.
2. high-concentration difficult-degradation organic sewage treating system according to claim 1, it is characterized in that, described extraordinary bacterium is at different high-concentration difficult-degradation organic sewages, the degraded dominant bacteria of taming and filtering out, the solvability hard-degraded substance of the organic sewage that is used for degrading; 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 the active carrier, the extraordinary bacterium of stationary state still is adsorbed on the active carrier, degraded is adsorbed in the solvability hard-degraded substance on the 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 first security personnel's strainers (12), and described first security personnel's strainer (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 first security personnel's strainers (12) by suction pump (9), leach on water pipe and the pipeline that suction pump is connected liquid control valve (10) is set, suction pump (9) water outlet is provided with vacuum breaker (11); Described chemicals dosing plant is dosing volume pump (13), and dosing volume pump (13) is connected to the ingress of first security personnel's strainers (12) by 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 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 and further concentrate on nanofiltration membrane component and the concentrated solution rising pipe that the enrichment regeneration reactor is communicated with; 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 is provided with high-pressure pump (15), on high-pressure pump (15) and the pipeline that the nanofiltration membrane component water inlet pipe is connected liquid control 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 second security personnel's strainer (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 second security personnel's strainer (21) by flushing water pump (20), and second security personnel's strainers (21) connect 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, liquid control valve (18) is set on the described reuse water pipe, on the described nanofiltration effluent recycling pipe liquid control valve (19) is set, the ingress of flushing water pump (20) and exit are provided with liquid control valve (22) and vacuum breaker (23) respectively, on second security personnel's strainers (21) and the pipeline that the nanofiltration membrane component water inlet pipe is connected 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 the 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 is provided with gas blower (5) outward, and described gas blower (5) links to each other 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 the active ultrafiltration membrane bioreactor, mud discharging/evacuated tube (31) goes up mounting ball valve (32), controls mud discharging and pond body 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) is provided with liquid control valve (28), and the exit of transferpump 27 is provided with 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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| CN201010111436XA CN101786716B (en) | 2010-02-10 | 2010-02-10 | High-concentration difficult-degradation organic sewage treating system |
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| CN101786716A true CN101786716A (en) | 2010-07-28 |
| CN101786716B CN101786716B (en) | 2013-06-05 |
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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 |
| CN113023885A (en) * | 2021-04-07 | 2021-06-25 | 知和环保科技有限公司 | Process for directionally strengthening sludge and application method thereof |
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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 |
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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 |
| CN113023885A (en) * | 2021-04-07 | 2021-06-25 | 知和环保科技有限公司 | Process for directionally strengthening sludge and application method thereof |
| 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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| CN101786716B (en) | 2013-06-05 |
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