CN203256084U - Multistage water purifying undercurrent wetland unit - Google Patents
Multistage water purifying undercurrent wetland unit Download PDFInfo
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- CN203256084U CN203256084U CN 201320135522 CN201320135522U CN203256084U CN 203256084 U CN203256084 U CN 203256084U CN 201320135522 CN201320135522 CN 201320135522 CN 201320135522 U CN201320135522 U CN 201320135522U CN 203256084 U CN203256084 U CN 203256084U
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Abstract
The utility model discloses a multistage water purifying undercurrent wetland unit. The unit comprises a hardware container opened in the width direction, accommodating tanks are arranged in the hardware container, anaerobic filtering modules, aerobic adsorption modules and a microbial module are arranged in the accommodating tanks respectively, the anaerobic filtering modules and the aerobic adsorption modules are vertically arranged, the microbial module is horizontally arranged, the aerobic adsorption modules parallel to, align at and are communicated with the anaerobic filtering modules, the effective volume of each of the anaerobic filtering modules and the aerobic adsorption modules is 1/2 of the volume of the microbial module, the aerobic adsorption modules are communicated with the microbial module, a water level control tank is arranged outside the accommodating tanks, a water purifying carbon core is arranged in the water level control tank, a water level controller is arranged on the wall of the water level control tank, a water inlet pipeline is communicated with an I grade anaerobic filtering module, one end of a water outlet pipeline corresponds to the water purifying carbon core, and the other end of the water outlet pipeline is communicated with a clear water pool. The unit has the advantages of high water purifying efficiency, stable water purifying effect, long service life, small occupied land area, and convenient update, maintenance and operation.
Description
Technical field
The utility model relates to technical field of sewage, particularly a kind of multistage water purification subsurface flow wetland unit.
Background technology
At present, it is more and more that artificial swamp is applied to the engineering of sewage disposal.Artificial swamp mainly is comprised of layer of plants, packing layer, microorganism layer three part, and artificial swamp is mainly finished removal of pollutants in the sewage by the synergy between this three.But existing artificial swamp is behind long-play, and organic loading is too high, and the pollutent that produces in the system accumulates etc. and all can cause and obstruction bring series of problems.
Mainly there is following problem in existing artificial swamp:
Cleaning water is low: the required hydraulic detention time of most artificial swamps is longer, needs approximately 48 hours, and actual water outlet only reaches " urban wastewater treatment firm pollutant emission standard " secondary B standard in (GB18918-2002);
Purifying water effect is unstable: come water pollutant change in concentration and climatic factor to affect, the artificial swamp purifying water effect is unstable;
Work-ing life is shorter: the problems such as general artificial swamp uses after a year and begins to occur the effluent quality fast-descending, and water outlet is not up to standard;
It is large that difficulty is changed in the maintenance of filler: the filler of general artificial swamp mixes by layering stacks not easy cleaning, maintenance and replacing.
In addition, existing artificial swamp floor space is large: required effective construction area (square metre) be about 3～6 times of the pending water yield (ton).
The utility model content
The technical problems to be solved in the utility model is: in order to overcome the problems such as existing artificial swamp cleaning water is low, purifying water effect is unstable, work-ing life is short, be inconvenient to safeguard, provide a kind of multistage water purification subsurface flow wetland unit.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of multistage water purification subsurface flow wetland unit comprises the hardware container of width opening, have three holding tanks in the hardware container, be vertically installed with from top to bottom the II level anaerobism filtration module and the I level anaerobism filtration module that communicate in the first holding tank, be vertically installed with from top to bottom the aerobic adsorption module of I level and the aerobic adsorption module of II level that communicate in the second holding tank, aerobic adsorption module and anaerobism filtration module parallel aligned are also passed through pipeline communication, be horizontally disposed with the microorganism module in the 3rd holding tank, the effective volume of anaerobism filtration module and aerobic adsorption module all is 1/2 of microorganism module effective volumes, aerobic adsorption module is by pipeline communication microorganism module, the holding tank arranged outside has a water level control flume, be provided with water purification charcoal core in the water level control flume, on the water level control cell wall water monitor of regulating aerobic adsorption module water level is installed, inlet channel is communicated with I level anaerobism filtration module, the corresponding water purification charcoal of outlet conduit one end core, the other end communicates with clean water basin.
Described I level anaerobism filtration module filler is the limestone of particle diameter 2～3cm, and the filler of II level anaerobism filtration module is the limestone of 1～2cm; The volcanics that the aerobic adsorption module filler of I level is particle diameter 3～5cm, the volcanics that the aerobic adsorption module filler of II level is particle diameter 2～3cm; The microorganism module adopts high poly-fiber 3 D elastic filler.
The height of the aerobic adsorption module of described I level and the aerobic adsorption module of II level is 1m, and the height of I level anaerobism filtration module and II level anaerobism filtration module is 1m, and the height of microorganism module is 0.5m, and the height of water level control flume is 1.5m.
Be provided with two water purification charcoal cores in the described water level control flume.
Described water monitor is two induction drain type water monitors.
The beneficial effects of the utility model are: floor space is little: the construction area (square metre) only be 1.1～1.3 times of the pending water yield (ton), be the 1/5-1/3 that general artificial swamp is built area;
Cleaning water is high: required hydraulic detention time requires not coexist between 3～24 hours according to water outlet, effluent quality can reach " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) one-level A standard～" urban sewage reutilization city miscellaneous water water quality standard " (GB T18920-2002), nitrogen removal rate reaches more than 80%, and total tp removal rate reaches more than 90%;
Purifying water effect is stable: by the dissolved oxygen environment in the change of level regulation system, thereby improve diversity and the stability of water purification microbial function group; It is little that buried undercurrent type design and bottom microbial reaction modular design allow the invention affected by seasonal factor, further improves stability;
Work-ing life is longer: the different microorganisms functional groups that multistage module series design and unique current are designed in the Water treatment makes up special obligate reaction environment, so that increase the work-ing life of each modular environment, the whole service life estimation can reach 6～10 years at least;
Updating maintenance is easy to operate: difference in functionality filler piecemeal is stacked in modular design, and the maintenance in the process easy to use and replacing by regular maintenance management, can extend to the work-ing life of multistage compound water purification current wetland more than 50 years.
Description of drawings
Fig. 1 is the longitudinal sectional view of the utility model wetland unit
Fig. 2 is the spliced synoptic diagram of a plurality of wetland units
Fig. 3 is that whole wet land system using planar is arranged synoptic diagram
Fig. 4 is the vertical view of Fig. 3
Fig. 5 is that the current of wetland unit move towards synoptic diagram
Fig. 6 is the curvilinear motion figure of the utility model removal efficiency of nitrogen and phosphorus
Embodiment
Now by reference to the accompanying drawings and specific embodiment, the utility model is described in further detail.These accompanying drawings are the synoptic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
As shown in Figure 1, it is the longitudinal sectional view of wetland unit, this wetland unit wetland unit comprises the hardware container 1 of width opening, have three holding tanks in the hardware container 1, be vertically installed with from top to bottom the II level anaerobism filtration module 21 and the I level anaerobism filtration module 22 that communicate in the first holding tank, be vertically installed with from top to bottom the aerobic adsorption module 31 of the I level that communicates and the aerobic adsorption module 32 of II level in the second holding tank, aerobic adsorption module and anaerobism filtration module parallel aligned are also passed through pipeline communication, be horizontally disposed with microorganism module 4 in the 3rd holding tank, the effective volume of anaerobism filtration module 2 and aerobic adsorption module 3 all is 1/2 of microorganism module effective volumes, aerobic adsorption module 3 is by pipeline communication microorganism module 4, the holding tank arranged outside has a water level control flume 5, be provided with water purification charcoal core 6 in the water level control flume 5, the water monitor 7 of regulating aerobic adsorption module water level is installed on water level control flume 5 walls, inlet channel 8 is communicated with I level anaerobism filtration module 21, the corresponding water purification charcoal of outlet conduit 9 one ends core 6, the other end is communicated with water pump 10, and water pump 10 communicates with clean water basin 13.
Described I level anaerobism filtration module filler is the limestone of particle diameter 2～3cm, and the filler of II level anaerobism filtration module is the limestone of 1～2cm, porosity 35%-45%; The volcanics that the aerobic adsorption module filler of I level is particle diameter 3～5cm, the volcanics that the aerobic adsorption module filler of II level is particle diameter 2～3cm, porosity 40%-50%; Microorganism module 4 adopts high poly-fiber 3 D elastic filler, and water purification charcoal core is the charcoal of making through special high-temperature calcination treatment process.
As shown in Figure 2, be the spliced structural representation of a plurality of wetland units (being that length lengthens), installation and maintenance is convenient in the whole system modular design.
Such as Fig. 3, shown in 4, practical application of the present invention at the embodiment of a villa in Jiangxi (take day output 150t/d as standard design), this multistage water purification undercurrent wetland processing system comprises grating tank 11, settling tank 12, clean water basin 13, water pump 10, equipment room 14 and at least one wetland unit, wherein lateral dimension (long and wide) can be according to the concrete specific design of using, longitudinal size (height) is fixed measure, the aerobic adsorption module in upper strata, the virtual height of anaerobism filtration module is 1m(and does not comprise body of wall), the microorganism module virtual height of lower floor is that 0.5m(does not comprise body of wall), water level control flume virtual height is that 1.5m(does not comprise body of wall).Enter anaerobism filtration module 2 after sewage process grating tank and the settling tank pre-treatment, enter aerobic adsorption module 3 by up stream, enter microorganism module 4 through downstream again, last parallel-flow enters water level control flume 5(through water purification charcoal core and sees Fig. 5).
Water level control of the present invention is by U-shaped pipe principle, thereby control elevation of water surface in the aerobic adsorption module by the elevation of water surface in the control water level control flume, scope is to its bottom (the microorganism module that does not comprise lower floor), in 1 meter scope from the top of aerobic adsorption module.
As shown in Figure 1, also be provided with blow-off pipe 15 and backwash tube 16 in the hardware container, blow-off pipe 15 is connected with the power system of equipment room 14, is used for regularly the pollutent of anaerobism filtration module, aerobic adsorption module and microorganism module being extracted out; Backwash tube 16 is used for holding tank is washed.
The wetland unit modular unit, wetland unit is made of anaerobism filtration module, aerobic adsorption module, microorganism module, water purification charcoal core and water level control flume.
The anaerobism filtration module:
Series connection tagmeme: 1
Water (flow) direction: up stream
Reaction process: carry out anaerobic lactic acid fermentation, the reaction of anaerobism polyP bacteria, anaerobic nitrification
Bacterial reaction, weakly alkaline anaerobism filter packing carries out pH regulator to sewage simultaneously; Aerobic adsorption module:
Series connection tagmeme: 2
Water (flow) direction: downstream
Reaction process: aerobic nitrification bacterial reaction, aerobic denitrifying bacteria reaction, positively charged ion
Adsorption stuffing adsorbs negatively charged ion in the water body, increases sewage by change of level
Dissolved oxygen;
The microorganism module:
Series connection position order: 3
Water (flow) direction: horizontal flow
Reaction process: microorganism colonization reactive center, the multiple-microorganism reaction process under the aerobic-oxygen environment of holding concurrently: nitrification, denitrification, poly-phosphorus effect etc.;
Water purification charcoal core: water outlet is further removed pollutent in the water body through " water purification charcoal core " adsorption filtration of special high-temperature calcination art breading;
Water level control flume: according to " U " shape pipe principle, carry out periodic adjustment and control by the change of level of the aerobic adsorption module of water monitor in the water level grain.
Microflora:
Indigenous microorganisms+a kind of aerobic denitrifying bacteria that advanced to separate cultivation.
The dimension scale of each module:
Actual water body volume (effectively) ratio after filler is filled out and put is:
Anaerobism filtration module: aerobic adsorption module: microorganism module=1:1:2
Each module hydraulic detention time is respectively: 6 hours, and 6 hours, 12 hours.
The hardware structure:
The hardware structure of container of wetland unit can use brick structure and reinforcing bar to mix by the size difference
Xtah Crude Clay structure, scantlings of the structure can be according to the real needs specific design.
The sewage treatment process step is as follows: sewage in settling tank by natural sedimentation, block and remove floating solids and partial suspended particle; Enter wetland unit, first successively process I level anaerobism filtration module and II level anaerobism filtration module are effectively removed ammonia, nitrogen, phosphorus and the partial organic substances of sewage; Pass through successively the more aerobic adsorption module of I level and the aerobic adsorption module of II level, carry out aerobic nitrification reaction and aerobic anti-nitration reaction, negatively charged ion in the adsorbed water body carries out periodic adjustment and controls the dissolved oxygen environment that increases in the sewage the change of level of aerobic adsorption module by the water monitor in the water level groove simultaneously; Enter the microorganism module, carry out the microorganism colonization reaction, further remove total phosphorus, total nitrogen and organism in the water body; Enter the attached filtration of water purification charcoal wicking, further remove the amounts of residual contamination do in the water body; The clear water of extracting out after filtering finally by water pump enters clean water basin.
Hydraulic detention time (HRT) refers to the treatment time of sewage in system, is to set about 24 hours of the proliferating cycle of polyP bacteria and nitrifier according to the degradation rate of microbe.Passed through simultaneously concrete METHOD FOR CONTINUOUS DETERMINATION of testing (continuous 48 hours, measured once in per 6 hours), determine that at last native system optimal water power standing time (ratio of clearance and time is the highest) is 24 hours, with 1 speed (day output/24 hour) ton/hour continuously water inlet, 2 speed water intake velocity intermittent type water outlets, control aerobic adsorption module water inlet 6 hours by the water monitor in the water level control flume, the emptying 6 hours of cutting off the water, cutting off the water 6 hours of anaerobism filtration module, the cutting off the water 12 hours of microorganism module.
Wherein poly-phosphorus reaction, nitration reaction and anti-nitration reaction mainly are by control dissolved oxygen environment (anaerobism, aerobic) thereby induce corresponding polyP bacteria (anaerobism), nitrifier (aerobic), denitrifying bacteria (aerobic or double oxygen) propagation.
Assist simultaneously the propagation of corresponding microorganism by the different properties of filler: the limestone main component in the anaerobism filtration module is calcium carbonate, and the phosphorus in the energy active adsorption sewage makes phosphorus in the filling surface enrichment; The pH of while limestone energy adjustment of acidity sewage, thus so that the anaerobism filtration module is conducive to the growth and reproduction of polyP bacteria.Volcanics in the aerobic adsorption module has a large amount of holes and specific surface area, for adhering to propagation of aerobic nitrifier, denitrifying bacteria provides ecotopia.The microorganism module provides stable microorganism living environment (temperature, current, melt the conditions such as oxygen basicly stable), use simultaneously the poly-fiber 3 D elastic filler of the high and not susceptible to plugging height of specific surface area as main medium, for microorganism colonization provides ideal conditions.
Learn (see figure 6) by the long-term experiment test, this multistage compound water purification current wetland reaches more than 80% for the clearance of TN, and the clearance of TP reaches more than 90%, and purification efficiency is very high, and the Confucian classics effect stability.
Claims (5)
1. multistage water purification subsurface flow wetland unit, it is characterized in that: the hardware container that comprises the width opening, have three holding tanks in the hardware container, be vertically installed with from top to bottom the II level anaerobism filtration module and the I level anaerobism filtration module that communicate in the first holding tank, be vertically installed with from top to bottom the aerobic adsorption module of I level and the aerobic adsorption module of II level that communicate in the second holding tank, aerobic adsorption module and anaerobism filtration module parallel aligned are also passed through pipeline communication, be horizontally disposed with the microorganism module in the 3rd holding tank, the effective volume of anaerobism filtration module and aerobic adsorption module all is 1/2 of microorganism module effective volumes, aerobic adsorption module is by pipeline communication microorganism module, the holding tank arranged outside has a water level control flume, be provided with water purification charcoal core in the water level control flume, on the water level control cell wall water monitor of regulating aerobic adsorption module water level is installed, inlet channel is communicated with I level anaerobism filtration module, the corresponding water purification charcoal of outlet conduit one end core, the other end communicates with clean water basin.
2. multistage water purification subsurface flow wetland unit according to claim 1, it is characterized in that: described I level anaerobism filtration module filler is the limestone of particle diameter 2～3cm, and the filler of II level anaerobism filtration module is the limestone of 1～2cm; The volcanics that the aerobic adsorption module filler of I level is particle diameter 3～5cm, the volcanics that the aerobic adsorption module filler of II level is particle diameter 2～3cm; The microorganism module adopts high poly-fiber 3 D elastic filler.
3. multistage water purification subsurface flow wetland unit according to claim 2, it is characterized in that: the height of the aerobic adsorption module of described I level and the aerobic adsorption module of II level is 1m, the height of I level anaerobism filtration module and II level anaerobism filtration module is 1m, the height of microorganism module is 0.5m, and the height of water level control flume is 1.5m.
4. it is characterized in that: be provided with two water purification charcoal cores in the described water level control flume according to claim 1 or 3 described multistage water purification subsurface flow wetland units.
5. multistage water purification subsurface flow wetland unit according to claim 1 is characterized in that: described water monitor is two induction drain type water monitors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320135522 CN203256084U (en) | 2013-03-22 | 2013-03-22 | Multistage water purifying undercurrent wetland unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320135522 CN203256084U (en) | 2013-03-22 | 2013-03-22 | Multistage water purifying undercurrent wetland unit |
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| Publication Number | Publication Date |
|---|---|
| CN203256084U true CN203256084U (en) | 2013-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320135522 Expired - Fee Related CN203256084U (en) | 2013-03-22 | 2013-03-22 | Multistage water purifying undercurrent wetland unit |
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| Country | Link |
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| CN (1) | CN203256084U (en) |
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- 2013-03-22 CN CN 201320135522 patent/CN203256084U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20170322 |