CN101423315A - Repair method and device of lake water body - Google Patents
Repair method and device of lake water body Download PDFInfo
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- CN101423315A CN101423315A CNA2008102174375A CN200810217437A CN101423315A CN 101423315 A CN101423315 A CN 101423315A CN A2008102174375 A CNA2008102174375 A CN A2008102174375A CN 200810217437 A CN200810217437 A CN 200810217437A CN 101423315 A CN101423315 A CN 101423315A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 158
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000012528 membrane Substances 0.000 claims abstract description 95
- 239000010802 sludge Substances 0.000 claims abstract description 40
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 16
- 238000005192 partition Methods 0.000 claims abstract description 8
- 238000005273 aeration Methods 0.000 claims description 21
- 239000012530 fluid Substances 0.000 claims description 21
- 238000010992 reflux Methods 0.000 claims description 18
- 230000015556 catabolic process Effects 0.000 claims description 9
- 238000006731 degradation reaction Methods 0.000 claims description 9
- 230000002906 microbiologic effect Effects 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 7
- 238000005374 membrane filtration Methods 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 6
- 230000006866 deterioration Effects 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 239000003403 water pollutant Substances 0.000 claims description 5
- 239000000284 extract Substances 0.000 claims description 4
- 238000011010 flushing procedure Methods 0.000 claims description 4
- 244000005700 microbiome Species 0.000 abstract description 8
- 239000000356 contaminant Substances 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000005276 aerator Methods 0.000 abstract 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 229910052698 phosphorus Inorganic materials 0.000 description 9
- 239000011574 phosphorus Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 238000001471 micro-filtration Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 241000195493 Cryptophyta Species 0.000 description 3
- 238000005842 biochemical reaction Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012851 eutrophication Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- 241001495402 Nitrococcus Species 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- 229920000037 Polyproline Polymers 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000004099 anaerobic respiration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
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- 238000005034 decoration Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 230000003311 flocculating effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
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- 239000003643 water by type Substances 0.000 description 1
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Images
Classifications
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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
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Activated Sludge Processes (AREA)
Abstract
The invention relates to a method and device for improving lake water and relates to water treatment. The device comprises an industrial tank body which is provided with a first partition board and a second partition board which divide the industrial tank into a biochemical region, a filter membrane region and a clear water region, wherein a first lift pump is communicated to the biochemical region, the filter membrane region is provided with a membrane component which is connected with a second lift pump and is communicated to the clear water region, a perforated aerator pipe is arranged under the membrane component, a lower part of the clear water region is provided with a recoil pump, and an upper part of the clear water region is provided with an UV light disinfection device. The method comprises the following steps: 1) the biochemical region pumps lake water from a lake, and microorganisms in activated sludge degrades contaminants, 2) lake water overflows from the biochemical region flows to the filter membrane region, 3) the contaminants are further degraded and filtered and separated by a micro filter membrane, and an effluent enters a clear water pond, 4) lake water in the clear water region is treated by the UV light disinfection for UV light disinfection, and 5) the recoil pump operates to return the lake water in the clear water region to the lake through an output pipe. The method and device have advantages of no influence on landscapes, low cost and quick results.
Description
Technical field
The present invention relates to the treatment process of water body in lake, relate in particular to a kind of water body in lake restorative procedure and device.
Background technology
The city lake ecosystem has service functions such as the ecology of adjusting, entertainment; quickening along with Urbanization in China; many cities are in high speed development; the inland lake, city is not effectively protected; many lakes present eutrophication in various degree; serious destruction the ecoscape function in lake, city, so the city lake treatment is many cities urgent problems of improving the ecological environment.
For general sanitary sewage and water pollution, mainly there are following characteristics in water body in lake:
(1) selected object water surface area is less
This class lake has the waters relative closure mostly, and is relatively poor to the autodigestion degradation capability of pollutent, and resident leisure is had important landscape function, contaminated easily again simultaneously and the water quality degradation mode occurs, influences function of water body.
(2) water pollutant is based on ammonia nitrogen, phosphorus
The inland lake, city is polluted mainly by the contaminants that peripheral resident living sewage is revealed or peripheral recreational facilities produce and caused, and is wherein bigger with nitrogen, phosphor contaminant influence, causes body eutrophication easily.
At present, the main method restorative procedure of water body in lake is as follows:
I, physics reparation: mainly by bed mud dredging, change water, fill out sand, the lake water N/P ratio is washed away, regulates in nutritive salt passivation, bottom aeration, dilution, the measures such as bottom precipitation and flocculating settling that cover improve water quality, wherein dredging is modal method.This methods engineering amount is big, and the cost height can produce the reduction influence to the lake landscape function that lies fallow inevitably in construction period.
II, chemistry are repaired: mainly carry out from two aspects, control the concentration of the esential nutrient class in the water body on the one hand with chemical means to greatest extent, as the surplus at water nutrition salt, add lime to water body and carry out denitrogenation; The metallic salt that adds high price is with the phosphorus of precipitation in the water body etc.Be the control that is primarily aimed at excessive planktonic algae on the other hand, for example add chemical agent and kill algae.The very easy secondary pollution that causes water body of chemical process, and use cost breaks out the wawter bloom phenomenon easily once more than higher, usually only as a kind of ancillary technique or emergent control techniques.
III, restoration of the ecosystem: recover the lake ecosystem rational structure by ecological means, make up the efficient lake ecological chain of coordinating, rebuild the function of damaged ecosystem and relevant physics, chemistry and biological nature, make system reach the state that the oneself keeps, but the repairing efficiency of ecological reestablishment is longer, and it is slow to take effect.
Summary of the invention
The object of the present invention is to provide a kind of water body in lake fast repairing method and device, influence view, cost height in the prior art to overcome, slow shortcoming takes effect.
Water body in lake prosthetic device of the present invention comprises an industrial tank body, it is characterized in that:
In the described industrial tank body first dividing plate and second partition are set, described first dividing plate and second partition are divided into biochemical zone, filter membrane district and clear water zone successively with industrial tank interior;
Be placed in the first lift pump connecting tube in the lake, be communicated to biochemical zone, in the described biochemical zone aeration plate is set, aeration plate is installed on the bottom of biochemical zone, has the active sludge of microbiological deterioration in the described biochemical zone;
The described first dividing plate top is provided with the overflow gap, and the lake water in the biochemical zone flows into the filter membrane district by the overflow gap;
Described filter membrane is provided with membrane module in the district, described membrane module connects second lift pump, and this second lift pump is installed on the top in filter membrane district, is communicated to clear water zone, the active sludge that has microbiological deterioration in the filter membrane district, the filter membrane district constitutes a membrane bioreactor;
Boring aeration pipe is installed below membrane module, and described boring aeration pipe is communicated to the outer gas blower of industrial tank body;
Recoil pump is installed in the bottom of described clear water zone, described recoil pump connecting tube is communicated to the two-way pipeline: recoil pipeline and output channel, and described recoil pipeline is communicated to membrane module, output channel is communicated to the lake, and uv sterilisation equipment is installed on the top of described clear water zone.
The bottom in described filter membrane district is provided with sludge reflux pump, and this sludge reflux pump connects reflux line, and reflux line passes the overflow gap and is communicated to biochemical zone.
The bottom of described biochemical zone, filter membrane district and clear water zone is installed first blow-off valve, second blow-off valve and the 3rd blow-off valve respectively, and described first blow-off valve, second blow-off valve and the 3rd blow-off valve are connected the exhausting pipeline conducting to the lake.
The electric contact differential pressure gauge is installed in the connecting tube between described membrane module and the clear water zone.
Described second lift pump is communicated in the connecting tube of clear water zone water meter is installed.
First fluid level controller, second fluid level controller and the 3rd fluid level controller are installed respectively in described biochemical zone, filter membrane district and the clear water zone, respectively the water level in biochemical zone, filter membrane district and the clear water zone is monitored, controlled the working order of first lift pump, second lift pump, recoil pump and related valve thereof according to water level separately respectively.
Water body in lake restorative procedure of the present invention comprises the steps:
1) biochemical zone extracts lake water by first lift pump from the lake, and active sludge is by the pollution substance in the biochemical degradation effect removal lake water of microorganism;
2) after the lake water in the biochemical zone overflowed, lake water flowed into the filter membrane district by the overflow gap;
3) the filter membrane district further degrades to the lake water pollutant by microorganism in the active sludge, gas blower is to the boring aeration pipe air feed, to the oxygen supply of membrane filtration district and wash away membrane module microfiltration membrane surface, water outlet enters clean water basin through after the filtering separation of membrane module by second lift pump suction lake water;
4) uv sterilisation equipment work carries out uv sterilisation to the lake water in the clear water zone and handles.
5) recoil pump work is returned lake water after the processing in the clear water zone and to be transferred to the lake by output channel.
Also comprise the steps: among the described step 3)
When the sludge concentration in the filter membrane district was excessive, sludge reflux pump was opened, and the part active sludge is back to biochemical zone by reflux line.
Second lift pump suction lake water enters after the clean water basin in the described step 3), also comprises the steps:
When if the negative pressure of electric contact differential pressure indicator is lower than a setting threshold, the recoil pipeline is connected in recoil pump work, and recoil pump carries out back flushing by the recoil pipeline to the film surface and cleans.
Beneficial effect of the present invention is: in the present invention, utilize that active sludge carries out microbiological deterioration to lake water in biochemical zone and the filter membrane district, remove the pollution substance in the water of lake, adopt the membrane module filtering separation, the filter membrane district constitutes a membrane bioreactor, and the uv sterilisation in the clear water zone, particularly, the present invention has following advantage:
(1) the present invention is directed to the characteristics of water body in lake pollutent based on nitrogen, phosphorus, pointed to its degraded, can realize the reparation of polluted lake water body efficiently, apace.
(2) the present invention has realized the combination that multiple technologies are handled by these technology are integrated in the reactor, and simultaneously by the PLC automatic control system, the operation of equipment management is simple, and running cost is low, and it is extremely quick to take effect.
(3) enclosed construction of this miniaturization of the present invention can not produce the reduction influence to lake leisure landscape function, in actual applications, holds concurrently with certain coverage, decoration, almost can not produce any influence for view.
(4) in inside of the present invention, be provided with automatic recoil cleaning system, can carry out regular back flushing to the membrane module surface by the recoil pipeline and clean, be convenient to use of the present invention, make the present invention have operability.
In the present invention, the bottom of biochemical zone, filter membrane district and clear water zone is installed first blow-off valve, second blow-off valve and the 3rd blow-off valve respectively, described first blow-off valve, second blow-off valve and the 3rd blow-off valve are connected the exhausting pipeline conducting to the lake, can be so that maintenance of the present invention, maintenance.
In the present invention, first fluid level controller, second fluid level controller and the 3rd fluid level controller are installed respectively in biochemical zone, filter membrane district and the clear water zone, respectively the water level in biochemical zone, filter membrane district and the clear water zone is monitored, control the working order of first lift pump, second lift pump, recoil pump and related valve thereof respectively according to water level separately, automatization performance of the present invention be can improve, practicality of the present invention and operability further improved.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is that the present invention is along the M-M diagrammatic cross-section;
Fig. 3 is a basic controlling flow process synoptic diagram of the present invention;
Fig. 4 is the concrete control flow synoptic diagram of the present invention.
Embodiment
With embodiment the present invention is described in further detail with reference to the accompanying drawings below:
According to Fig. 1 and Fig. 2, the present invention includes an industrial tank body, as shown in Figure 1, the first dividing plate A and second partition B are set in the industrial tank body, the first dividing plate A and second partition B are divided into biochemical zone 1, filter membrane district 2 and clear water zone 3 successively with industrial tank interior.
As shown in Figure 1, be placed in first lift pump, 4 connecting tubes 41 in the lake, be communicated to biochemical zone 1, as depicted in figs. 1 and 2, aeration plate 11 is set in the biochemical zone 1, and aeration plate 11 is installed on the bottom of biochemical zone 1, has the active sludge of microbiological deterioration in the biochemical zone 1.In the present invention, biochemical zone 1 is the aerobic area territory, only should the zone cultivate and use when active sludge needs aeration in system's initial start stage, the major microorganisms structure of community of biochemical zone 1 active sludge is anaerobism and double oxygen animalcule, such microbial growth does not need to provide oxygen, mainly carry out the anaerobic respiration effect, the biochemical reaction that carry out in this interval is anaerobic phosphorus release and denitrification denitrogenation.
As shown in Figure 1, the first dividing plate A top is provided with overflow gap A1, and the lake water in the biochemical zone 1 flows into filter membrane district 2 by overflow gap A1.
As depicted in figs. 1 and 2, be provided with membrane module 21 in the filter membrane district 2, membrane module quantity is decided according to the treatment scale of prosthetic device.Membrane module 21 connects second lift pump 22, and this second lift pump 22 is installed on the top in filter membrane district 2, is communicated to clear water zone 3, has the active sludge of biological degradation in the filter membrane district 2, and filter membrane district 2 constitutes a membrane bioreactor.In the present invention, the active sludge in the filter membrane district 2 mainly comprises aerobic microbiological, and this quasi-microorganism is fast to organic degradation speed, can reduce the organic pollutant in the waste water fast.
Facultative anaerobic biochemical district 1 and aerobic membrane filtration district 2 are set among the present invention are in order to improve removal effect, because nitrogen, phosphorus are the major causes that causes the water body in lake eutrophication nitrogen, phosphor contaminant in the water of lake.
As shown in Figure 1, boring aeration pipe 23 is installed below membrane module 21, aeration plate 11 is communicated to the outer gas blower 5 of industrial tank body with boring aeration pipe 23.
As shown in Figure 1, the bottom in filter membrane district 2 is provided with sludge reflux pump 24, and this sludge reflux pump 24 connects reflux line 25, and reflux line 25 passes overflow gap A1 and is communicated to biochemical zone 1.
As shown in Figure 1, recoil pump 31 is installed in the bottom of clear water zone 3, recoil pump 31 connecting tubes 32, be communicated to two set of tubes systems: recoil pipeline 32A and output channel 32B, recoil pipeline 32A is communicated to membrane module 21, and output channel 32B is communicated to the lake, and uv sterilisation equipment 33 is installed on the top of clear water zone 3, for example, ultraviolet lamp.
As shown in Figure 1, electric contact differential pressure gauge P is installed in the connecting tube between membrane module 21 and the clear water zone 3.Second lift pump 22 is communicated to water meter S is installed in the connecting tube of clear water zone 3.
As shown in Figure 1, the bottom of biochemical zone 1, filter membrane district 2 and clear water zone 3 is installed the first blow-off valve 1A, the second blow-off valve 1B and the 3rd blow-off valve 1C respectively, and the first blow-off valve 1A, the second blow-off valve 1B are connected exhausting pipeline 6 conductings to the lake with the 3rd blow-off valve 1C.
As shown in Figure 1, the first fluid level controller 1a, the second fluid level controller 1b and the 3rd fluid level controller 1c are installed respectively in biochemical zone 1, filter membrane district 2 and the clear water zone 3, respectively the water level in biochemical zone 1, filter membrane district 2 and the clear water zone 3 is monitored, controlled the working order of first lift pump 4, second lift pump 22, recoil pump 31 and related valve thereof according to water level separately by the PLC automatic control system respectively.
As shown in Figure 3, basic controlling flow process of the present invention is as follows:
1) biochemical zone 1 extracts lake water by first lift pump 4 from the lake, and active sludge is by the pollution substance in the Degradation removal lake water of microorganism.
2) after the lake water in the biochemical zone 1 overflowed, lake water flowed into filter membrane district 2 by overflow gap A1.
3) filter membrane district 2 further degrades to the lake water pollutant by microorganism in the active sludge, gas blower 5 is to boring aeration pipe 23 air feed, to the oxygen supply of membrane filtration district and wash away the microfiltration membrane surface of membrane module 21, through after the filtering separation of membrane module 21, water outlet enters clean water basin by second lift pump, 22 suction lake water.
4) uv sterilisation equipment 33 work are carried out uv sterilisation to the lake water in the clear water zone 3 and are handled.
5) recoil pump 31 is worked, and the lake water in the clear water zone 3 is returned by output channel 32B transfer to the lake.
As shown in Figure 4, concrete control flow of the present invention is as follows:
1. the first fluid level controller 1a monitors the water level of biochemical zone 1.
2. the first fluid level controller 1a carries out following operation according to the comparison of biochemical zone 1 water level and a setting threshold:
21. if biochemical zone 1 water level is lower than setting threshold, the first fluid level controller 1a controls the startup/unlatching of valve in first lift pump 4 and the pipeline thereof, biochemical zone 1 extracts lake water by first lift pump 4 from the lake, continues following steps 3.
22. otherwise, continue following steps 3.
3. the Degradation of the active sludge in the biochemical zone 1 by microorganism removed the pollution substance in the water of lake, for example, and organism, nitrogen, phosphorus etc.
4. after the lake water in the biochemical zone 1 overflowed, lake water flowed into filter membrane district 2 by overflow gap A1.
5. filter membrane district 2 further degrades to the lake water pollutant by microorganism in the active sludge, and gas blower 5 to the aerobic microbiological oxygen supply of membrane filtration district, and washes away membrane module 21 microfiltration membrane surfaces to boring aeration pipe 23 air feed.Boring aeration pipe 23 produces relatively large bubble, make in aeration process, to the microfiltration membrane surface try one's best effectively, air water is two completely washes, deposit thereby overcome the film surface contaminant.
6. detect the sludge concentration in the filter membrane district 2, carry out following operation:
61. when the sludge concentration in the filter membrane district 2 was excessive, sludge reflux pump 24 was opened, and the part active sludge is back to biochemical zone 1 by reflux line 25, continues following steps 7.
In the present invention, this mud reflow treatment mainly has following effect:
● can improve the sludge concentration of biochemical zone 1 on the one hand.
● under the aerobic condition in filter membrane district 2, nitrated and nitrococcus carries out nitrification to the ammonia nitrogen in the water of lake, the nitrate and the nitrite that produce are the substrate of anaerobic denitrifying biochemical reaction, equal also to have refluxed nitrification liquid by returned sluge, guaranteed to carry out smoothly at the anti-nitration reaction of biochemical zone 1.
● the polyP bacteria in filter membrane district 2 active sludge absorbs the phosphorus in the water of lake under aerobic condition, discharge phosphorus by being back to front end facultative anaerobic biochemical district 1, has realized phosphorus removal functional.
● because 2 reactions of aerobic membrane filtration district are the aerobic biochemical reaction, the characteristics of this reaction are that the mud reproduction speed is fast, sludge quantity gathers way soon, can occur mud biochemical property variation if this zone sludge concentration is too high, film is polluted the situation that the aggravation membrane flux descends.Therefore,, can keep this regional sludge concentration to maintain certain level, simultaneously, under the oxygen condition of holding concurrently, can carry out digest and decompose, thereby reduce the excess sludge generation of whole device returned sluge by backflow part mud.
62. otherwise, continue following steps 7.
7. the second fluid level controller 1b monitors the water level in filter membrane district 2.
8. the second fluid level controller 1b carries out following operation according to the comparison of filter membrane district 2 water levels and a setting threshold:
81. if filter membrane district 2 water levels are higher than setting threshold, the second fluid level controller 1b controls the startup/unlatching of valve in second lift pump 22 and the pipeline thereof, start second lift pump 22, through after the filtering separation of membrane module 21, second lift pump, 22 suction lake water enter clean water basin 3, and the external and internal pressure difference was carried out following operation when the membrane module 21 that is reflected according to electric contact differential pressure gauge P aspirated again:
811. when if the negative pressure of electric contact differential pressure indicator P is lower than a setting threshold, stop second lift pump 22, recoil pipeline 32A is connected in recoil pump 31 work, recoil pump 31 carries out back flushing by recoil pipeline 32A to the film surface and cleans, and finishes until cleaning, and returns step 8.
812. otherwise, continue following steps 9.
82. otherwise, continue following steps 9.
9. uv sterilisation equipment 33 work is carried out uv sterilisation to the lake water in the clear water zone 3 and is handled, after uv sterilisation is handled with residual microbial in the water of lake and algae deactivation.
10. the 3rd fluid level controller 1c monitors the water level of clear water zone 3.
11. the 3rd fluid level controller 1c carries out following operation according to clear water zone 3 water levels and the comparison of setting high limit/lower threshold:
111., continue following steps 12 if clear water zone 3 water levels are higher than percent high threshold value.
112. otherwise the 3rd fluid level controller 1c further according to the comparison of clear water zone 3 water levels and lower threshold, carries out following operation:
1221. if clear water zone 3 water levels are lower than lower threshold, recoil pump 31 quits work.
1222. otherwise recoil pump 31 keeps original (starting or stoping) working order.
12. output channel 32B is connected in recoil pump 31 work, the lake water in the clear water zone 3 is returned by output channel 32B transfer to the lake.
In sum, although basic structure of the present invention, method are set forth by above-mentioned specific embodiment, under the prerequisite that does not break away from main idea of the present invention, according to above-described inspiration, those of ordinary skills can not need to pay creative work can implement conversion/alternative form or combination, repeats no more herein.
Claims (9)
1. a water body in lake prosthetic device comprises an industrial tank body, it is characterized in that:
Described industrial tank interior is provided with first dividing plate and second partition, and described first dividing plate and second partition are divided into biochemical zone, filter membrane district and clear water zone successively with industrial tank interior;
First lift pump that is placed in the lake is connected with biochemical zone by pipeline, in the described biochemical zone aeration plate is set, and aeration plate is installed on the bottom of biochemical zone, has the active sludge of biological degradation in the described biochemical zone;
The described first dividing plate top is provided with the overflow gap, and the lake water in the biochemical zone flows into the filter membrane district by the overflow gap;
Described filter membrane is provided with membrane module in the district, described membrane module is connected with second lift pump, and this second lift pump is installed on the top in filter membrane district, is communicated to clear water zone, the active sludge that has biological degradation in the filter membrane district, the filter membrane district constitutes a membrane bioreactor;
Boring aeration pipe is installed below membrane module, and described boring aeration pipe is communicated to the outer gas blower of industrial tank body;
Recoil pump is installed in described clear water zone bottom, described recoil pump connecting tube is communicated to the two-way pipeline: recoil pipeline and output channel, and described recoil pipeline is communicated to membrane module, output channel is communicated to the lake, and uv sterilisation equipment is installed on the top of described clear water zone.
2. water body in lake prosthetic device according to claim 1 is characterized in that: the bottom in described filter membrane district is provided with sludge reflux pump, and this sludge reflux pump connects reflux line, and reflux line passes the overflow gap and is communicated with biochemical zone.
3. water body in lake prosthetic device according to claim 1, it is characterized in that: the bottom of described biochemical zone, filter membrane district and clear water zone is installed first blow-off valve, second blow-off valve and the 3rd blow-off valve respectively, and described first blow-off valve, second blow-off valve and the 3rd blow-off valve directly are communicated with the lake by pipeline.
4. water body in lake prosthetic device according to claim 1 is characterized in that: the electric contact differential pressure gauge is installed in the connecting tube between described membrane module and the clear water zone.
5. water body in lake prosthetic device according to claim 1 is characterized in that: described second lift pump is communicated in the connecting tube of clear water zone water meter is installed.
6. water body in lake prosthetic device according to claim 1, it is characterized in that: first fluid level controller, second fluid level controller and the 3rd fluid level controller are installed respectively in described biochemical zone, filter membrane district and the clear water zone, respectively the water level in biochemical zone, filter membrane district and the clear water zone is monitored, controlled the working order of first lift pump, second lift pump, recoil pump and related valve thereof according to water level situation separately respectively.
7. water body in lake restorative procedure, it is characterized in that: it comprises the steps:
1) biochemical zone extracts polluted lake water by first lift pump from the lake, by the pollution substance in the removal of the microbiological deterioration in the active sludge water body;
2) after the lake water in the biochemical zone overflowed, lake water entered the filter membrane district by overflow;
3) the filter membrane district further degrades to the lake water pollutant by aerobic microbiological under aerobic condition, gas blower by boring aeration pipe to the oxygen supply of membrane filtration district and wash away membrane module, through after the filtering separation of membrane module, water outlet enters clean water basin by the suction of second lift pump;
4) uv sterilisation equipment work carries out uv sterilisation to the water outlet in membrane filtration district and handles.
5) recoil pump work is returned the lake water in the clear water zone and to be transferred to the lake by output channel.
8. water body in lake restorative procedure according to claim 7 is characterized in that: also comprise the steps: among the described step 3)
When the sludge concentration in the filter membrane district was excessive, sludge reflux pump was opened, and the part active sludge is back to biochemical zone by reflux line.
9. water body in lake restorative procedure according to claim 7 is characterized in that: second lift pump suction lake water enters after the clean water basin in the described step 3), also comprises the steps:
When if the negative pressure of electric contact differential pressure indicator is lower than a setting threshold, the recoil pipeline is connected in recoil pump work, and recoil pump carries out back flushing by the recoil pipeline to the film surface and cleans.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102174375A CN101423315B (en) | 2008-11-13 | 2008-11-13 | Repair method and device of lake water body |
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| CN2008102174375A CN101423315B (en) | 2008-11-13 | 2008-11-13 | Repair method and device of lake water body |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105384303A (en) * | 2015-11-03 | 2016-03-09 | 浙江华奕生态建设有限公司 | Intelligent river channel sewage treatment system and method |
| CN105948349A (en) * | 2016-07-19 | 2016-09-21 | 北京农学院 | Garden water system water circulating purifying technology |
| CN106186298A (en) * | 2016-09-14 | 2016-12-07 | 苏州科特环保股份有限公司 | A kind of integrated film bioreactor device of improvement |
| CN109592850A (en) * | 2018-12-29 | 2019-04-09 | 安徽蓝鼎环保能源科技有限公司 | A kind of G+MBR ecological environment river system repair technology |
| CN115521013A (en) * | 2022-10-26 | 2022-12-27 | 戴思乐科技集团有限公司 | Counter-flow module integrated multipurpose water treatment equipment |
-
2008
- 2008-11-13 CN CN2008102174375A patent/CN101423315B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105384303A (en) * | 2015-11-03 | 2016-03-09 | 浙江华奕生态建设有限公司 | Intelligent river channel sewage treatment system and method |
| CN105948349A (en) * | 2016-07-19 | 2016-09-21 | 北京农学院 | Garden water system water circulating purifying technology |
| CN106186298A (en) * | 2016-09-14 | 2016-12-07 | 苏州科特环保股份有限公司 | A kind of integrated film bioreactor device of improvement |
| CN109592850A (en) * | 2018-12-29 | 2019-04-09 | 安徽蓝鼎环保能源科技有限公司 | A kind of G+MBR ecological environment river system repair technology |
| CN115521013A (en) * | 2022-10-26 | 2022-12-27 | 戴思乐科技集团有限公司 | Counter-flow module integrated multipurpose water treatment equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101423315B (en) | 2011-05-11 |
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