Background technology
Ecological floating island is a kind of for eutrophication water, utilizes ecological engineering science principle, the artificial floating island device of COD (ChemicalOxygenDemand, chemical oxygen demand (COD)), nitrogen, phosphorus equal size in degradation water.By the utilization of ecological floating island, it can make the transparency of water body be greatly enhanced, and impels the water-quality guideline of water body to be also improved simultaneously, particularly has good inhibition to the growth of algae, the effective purification promoting water body.
Ecological floating island in the process of purification of water quality, its topmost means be the root system of the waterplant utilizing plantation to absorb the nutritive substance in water body, concrete example, as phosphorus, nitrogen, organism etc., is repaired contaminated water body with this, and is realized purification of water quality.
Concrete, the principle of work of ecological floating island is:
(1) utilize the root system with the waterplant of large surface area in water, form dense root system network, the suspended substance in adsorbed water body is carried out by root system network, and come to form microbial film on the surface of root system of plant gradually with this, with metabolism, the pollutent etc. in water body is degraded to inorganics by engulfing of the microorganism in microbial film, and make inorganics become the nutritive substance of waterplant, eventually through measures such as the waterplant that harvesting ecological floating island is planted to reduce the content of water Middle nutrition salt;
(2) ecological floating island keeps the sun off to the direct irradiation of water body by planting aquatic plants, the photosynthesis of Measures of Algae in Water Body can be suppressed with this, reduce phytoplankton growth amount, and be used for impelling phytoplankton subsiding by contact precipitation, effectively prevent the generation of " wawter bloom " phenomenon, improve the transparency of water body with this;
(3) further, waterplant is implanted with due to ecological floating island being planted, therefore, the position of waterplant also can be provided for the place that birds perch, and the bottom root system of plant of waterplant as the habitat of the fish in water body and aquatic insect, can also further optimize the aquatic environment in water body.
Ecological floating island has and purifies water, embellishing surface view, provides hydrobiont to perch the several functions such as space.Meanwhile, ecological floating island, relative to artificial swamp, has the advantage of the more convenient grade of plant growing, and without the need to personal management, only needs periodic cleaning, greatly reduces investment that is artificial and equipment, reduces the working cost etc. of maintaining expense and equipment.
But, in the utilization process of ecological floating island, also come with some shortcomings, such as, in the need of work water body of ecological floating island, there is a large amount of gas, so that the carrying out of water body purification reaction.
At present, main in the application of ecological floating island exist two kinds of aeration modes, and be fountain aeration mode and micro-pore aeration mode, its concrete principle is as follows:
Water extraction liter, for drive underwater turbine to rotate by submersible machine, is sprayed onto in air by fountain aeration mode, gets back in water body by the tiny water droplet formed by oxygen belt, realizes the aeration operation of water body with this.The huge moment of torsion of underwater turbine drives water body flow on a large scale and is caused a large amount of stirrings of surface water by fountain, for water body provides high oxygenation efficiency; Water body has possessed the flow performance of running water simultaneously, and sufficient oxygen makes water body nutrient remain on equilibrium state, to control the accumulation of settling and mud.Distinctive water body is to streamed, and exchange at vertical circulation moving process mesexine water body and bottom water body, fresh oxygen is transfused to river bed, waste gas also can be mixed discharges water surface, form aerobic microbiological group in river bed, effectively can prevent anaerobic digestion, greatly reduce foul smell; The hotter water body anaerobism in top layer is higher, after the river that bottom temp is lower is transported to top layer, restrains water surface algae reproduction and growth, improves hydraulic condition.
Air is sent into gas pipe line for adopting gas blower by micro-pore aeration mode, air is sent into micropore aeration pipe by gas pipe line, air is distributed in water with a large amount of microbubble forms by micropore aeration pipe, microbubble by the bottom of pond to floating, contact fully with water body, oxygen is fully dissolved in water, but also add the rotation of current and upper current downflow, water-band upper strata being rich in oxygen enters bottom, simultaneously the rotational flow of the upper current downflow of current current is simultaneously by being rich in the water of oxygen to external diffusion around microporous pipe, realizes the even oxygen aeration of water body.
But the fountain aeration utilized in ecological floating island device and micro-pore aeration technology, often formula is used by the form used separately, can not play respective sharpest edges well.Wherein, if ecological floating island device is used alone, and does not adopt any type of aeration process, when the dissolved oxygen content in water body is not high, often make the microorganism in the microbial film of root system of plant be in double oxygen or anaerobic horizontal, make the rate reduction of water of decomposition body pollution material.And if fountain aeration technology or micro-pore aeration technology are used alone, although Dissolved Oxygen in Water can be increased well, in water body, the carrier that microorganism is not fixed, still can not reach very high concentration, cause the speed of water of decomposition body pollution material on the low side.
In addition, the fixed form of ecological floating island device in water body also comes with some shortcomings.The surrounding of such as ecological floating island does not adopt fixed border or fixed border to adopt mao bamboon, PVC even PE material.Do not adopt the ecological floating island of fixed border, under long-term water impact effect, ecological floating island easily falls apart.And adopt the ecological floating island that mao bamboon frame material is fixed, soak in water because mao bamboon frame etc. is long-term, expose to the weather after easily rot.And for adopting the frame of PVC material, equally owing to soaking in water for a long time, PVC material is easy to aging becoming fragile.Be directed to the frame adopting PE material, although its long service life, cost is higher, and the use cost of ecological floating island device is increased substantially.
Therefore, how to design a kind of fixing firm, thing urgently to be resolved hurrily is just become to the more effective ecological floating island device of aeration in water body simultaneously.
Utility model content
For solving problems of the prior art, the utility model provides a kind of ecological floating island device of the aeration that is coupled, by the abundance of fountain aeration aeration in the connected applications guarantee water body of micro-pore aeration technology, simultaneously by improving the fixed form of ecological floating island, make the fixing more firm of ecological floating island device, ensure the operation that the scavenging process of water body is more stable.
The technical solution of the utility model is:
Be coupled the ecological floating island device of aeration, it is characterized in that, comprising:
Waterplant, for purifying water body;
Plantation basket, arranges waterplant, for planting aquatic plants in plantation basket;
The floating basin of plantation, the floating basin of plantation connects plantation basket, for fixing plantation basket, to form ecological floating island;
Spud pile, spud pile is flexibly connected the outside of the floating basin of plantation, and spud pile is fixedly connected on riverbed, floats basin for fixing plantation;
Wherein, the floating basin of plantation is multiple, and multiple plantation is floated basin and is interconnected;
Also comprise:
Fountain aeration machine, fountain aeration machine is connected to the plantation being positioned at middle part and floats on basin, for providing aeration by fountain form in water body;
Micro-pore aeration equipment, micro-pore aeration equipment connection spud pile, and micro-pore aeration equipment is arranged at the below of the floating basin of plantation, for providing aeration by micro-pore aeration mode in water body.
Preferably, spud pile is four, is connected to the outside that basin is floated in interconnective multiple plantation.
Preferably, micro-pore aeration equipment comprises: micro-pore aeration pipeline, micro-pore aeration machine; Micro-pore aeration pipeline is connected and fixed stake respectively; Micro-pore aeration machine connects micro-pore aeration pipeline.
Preferred further, micro-pore aeration pipeline is divided into two-layer up and down, and two-layer micro-pore aeration pipeline is connected and fixed stake respectively.
Preferably, spud pile and the floating basin of plantation are connected by double layer sleeve barrel, and the plantation after connecting is floated basin and can be moved up and down on the direction of spud pile.
The ecological floating island device of a kind of aeration that is coupled of the present utility model has the following advantages:
(1) mode adopting ecological floating island and fountain aeration technology, micro-pore aeration technology to combine, farthest make use of the advantage of root system of plant catalytic oxidation, ensure the content of oxygen in water body, also for quick growth of plant provides favourable condition while providing favourable condition for each pollutant of fast degradation water body, further, waterplant and fountain aeration technology can also strengthen the landscape effect of ecological floating island;
(2) by improving the fixed form of ecological floating island, make the fixing more firm solid of ecological floating island, meanwhile, also can ensure that ecological floating island is with water level, water flow variation and changing, and ensures the relatively stable of ecological floating island by the sleeve connection between ecological floating island and spud pile;
(3) the double-deck micro-pore aeration pipeline arranged is adopted, further can increase aeration rate, ensure effectively carrying out of water body purification, simultaneously, double-deck micro-pore aeration pipeline separately can connect two Fans or connect a Fans simultaneously, and arranging orientation and can carrying out unrestricted choice of blower fan, applies more flexible.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 is the structure iron of an ecological floating island device embodiment of a kind of aeration that is coupled of the utility model; Fig. 2 is that basin and spud pile johning knot composition are floated in the plantation of an ecological floating island device embodiment of a kind of aeration that is coupled of the utility model; Fig. 3 is the water plant planting structure iron of an ecological floating island device embodiment of a kind of aeration that is coupled of the utility model.
Wherein, with the Reference numeral shown in Fig. 3 be as shown in Figure 1, Figure 2.1 is plantation basket, and 2 is the floating basin of plantation, and 3 is spud pile, and 4 is fountain aeration machine, and 5 is micro-pore aeration equipment, and 31 is reinforcing bar, and 32 is inner sleeve, and 33 is outer sleeve, and 34 is sleeved, and 35 is rope, and 61,62,63 is waterplant.
As shown in Figure 1, the ecological floating island device of a kind of aeration that is coupled of the present embodiment, concrete syndeton is:
Specifically comprise in the present embodiment: waterplant 61,62,63, plantation basket 1, plantation floating basin 2, spud pile 3, fountain aeration machine 4 and micro-pore aeration equipment 5.
Wherein, waterplant 61,62,63 for purifying water body, and is planted in plantation basket 1 inner by waterplant 61,62,63 respectively.
Further, waterplant 61,62,63 can be set to different types of waterplant, while ensureing that water body effectively purifies further, can also improve the landscape diversity of ecological floating island.
Plantation basket 1 inside is provided with implantation hole, can ensure that the plantation of waterplant 61,62,63 is more firm by carrying out planting aquatic plants 61,62,63 in implantation hole, the rule simultaneously making the plantation of waterplant 61,62,63 can keep required, requirement, make the waterplant 61,62,63 being planted in plantation basket 1 have higher landscape value.
Plantation basket 1 is connected on the floating basin 2 of plantation, plantation basket 1 can effectively be fixed, and plantation basket 1 and the floating basin 2 of plantation are all multiple, to plant more waterplant 61,62,63, when further ensureing that water body purification effectively carries out, make to plant simultaneously basket 1 can rule as required, require to arrange, effectively to form ecological floating island, and make the ecological floating island formed have good landscape value, further beautify the outward appearance of ecological floating island.
Further, the floating basin 2 of plantation also can be divided into plantation basket anchor and housing, wherein plant basket anchor and can be fixedly connected with plantation basket 1, housing is used for fixing plantation basket anchor, and stake 3 can be connected and fixed, so that the floating basin 2 of fixing plantation, plantation basket anchor is connected by rope 35 with between housing.
Meanwhile, the floating basin 2 of plantation is fixed by spud pile 3, and spud pile 3 is connected on riverbed, to ensure to plant the movement that floating basin 2 can not be random on water body, ensures that ecological floating island can more effectively purify water body.
Concrete, be illustrated in figure 2 the structure iron that the present embodiment spud pile 3 is connected with the floating basin 2 of plantation, wherein, spud pile 3 specifically can be divided into reinforcing bar 31, inner sleeve 32, outer sleeve 33, sleeved 34 and rope 35 to form.
Reinforcing bar 31 is arranged at the penetralia of spud pile 3, for playing a supportive role to spud pile 3; Be arranged on the inside of inner sleeve 32 at reinforcing bar 31, and inner sleeve 32 is further arranged on the inside of outer sleeve 33, to form double layer sleeve barrel mode of connection; The housing of the floating basin 2 of plantation is connected with outer sleeve 33 the most at last, and mode of connection can be selected to be connected by rope 35, to carry out the replacing of parts.
Further, owing to adopting double-layer sleeve structure in spud pile 3, after making spud pile 3 connect the floating basin 2 of plantation, can make to plant floating basin 2 and carry out upper and lower movement on the direction of spud pile 3, wherein, due to spud pile 3 is fixed on riverbed, therefore spud pile 3 can not arbitrarily movement in water body, and along with the change of water body water level, due to the double-layer sleeve structure adopted in spud pile 3, outer sleeve 33 can be made to carry out floating under water with the change of water body water level, and further drive the plantation that outer sleeve 33 connects to float basin 2 to carry out upper and lower floating with the change of water body water level, further guarantee ecological floating island effectively carrying out water body purification effect.
Further, the selectable number of spud pile 3 is selected as 4, and is connected to the outside surrounding of the floating basin 2 of plantation, ensures the floating basin 2. of more effective fixing plantation
Again according to Fig. 1, fountain aeration machine 4 in the present embodiment is connected to the plantation being positioned at middle part and floats on basin 2, have multiple owing to planting floating basin 2, and it interconnects, if fountain aeration machine 4 is connected on other positions of the floating basin 2 of plantation, effectively can not ensure that floating basin 2 to all plantations carries out effective fountain aeration operation, therefore, fountain aeration machine 4 is connected to the plantation being positioned at middle part to float and basin 2 effectively can ensure float all plantations that basin 2 carries out uniformly, effective fountain aeration operates.
Micro-pore aeration equipment 5 can further be divided into: micro-pore aeration pipeline and micro-pore aeration machine; Wherein, micro-pore aeration pipeline is connected and fixed stake 3 respectively, and micro-pore aeration machine connects micro-pore aeration pipeline, delivers gas to micro-pore aeration pipeline inner, and carry out micro-pore aeration operation by the micropore that micro-pore aeration pipeline is arranged by micro-pore aeration machine.
Concrete, micro-pore aeration pipeline is connected to the bottom of spud pile 3, and the micro-pore aeration pipeline after connecting is positioned at the below of the floating basin 2 of plantation, so that when carrying out micro-pore aeration operation by micro-pore aeration equipment 5, more effectively the operations such as oxygen supply can be carried out to the waterplant 61,62,63 on the floating basin 2 of plantation.
Further, micro-pore aeration pipeline also specifically can be divided into upper and lower two-layer structure, and bilevel micro-pore aeration pipeline is connected and fixed in stake 3 respectively, further increase the validity of micro-pore aeration operation, ensure that there is enough gas in water body uses for water body purification.
Further, the setting position of micro-pore aeration machine can set with specific requirement, and it can be arranged on water body inside, also can be arranged on water body outside.Simultaneously, the micro-pore aeration pipeline of upper and lower two-layer setting can carry out aeration by same micro-pore aeration machine to be provided, also operate by different micro-pore aeration machines, increase the maneuvering ability of the present embodiment further, the utility model can be made to have more wide range of application.
Embodiment one:
Embodiment one is on utilization basis of the present utility model, as follows to the concrete selection situation of each parts in utility model:
Waterplant 61,62,63 adopt respectively iris, parasol grass and Canna generalis Bailey, planting density be 12-25 strain/square metre, specifically select in the present embodiment 20 strains/square metre; And the concrete arrangement of waterplant 61,62,63 as shown in Figure 3, wherein, has 5 pieces of plantations and floats basins 2 in the present embodiment, the floating basin 2 of 4 pieces of plantations in outside is to float basin around the mode arranged around 1 piece of plantation at middle part.
Parasol grass 62 is enclosed in the periphery plantation one of the floating basin 2 of 1 piece of plantation being positioned at middle part; Periphery plantation one circle iris 61 in the floating basin 2 of 4 pieces of plantations in outside, inner plantation Canna generalis Bailey 63.
Connect fountain aeration machine 4 in the center of the 1 piece of floating basin 2 of plantation being positioned at middle part, and fountain aeration machine 4 is arranged on external diameter is in the circular floating drum of 50mm, by circular floating drum, fountain aeration machine 3 is connected on the floating basin 2 of plantation.
Further, circular floating drum is connected by rope 35 and the floating basin 2 of plantation, and wherein rope 35 adopts diameter to be the nylon rope of 8mm.
The material selection of plantation basket 1 is HDPE (high density polyethylene(HDPE)), and plantation basket 1 is trapezoidal cylindrical structure, and its upper inner diameter is 100mm, lower inner diameter is 90mm, be highly 80mm, and be provided with plantation haydite, so that planting aquatic plants 61,62,63 in the inside of plantation basket 1.
Plantation basket anchor in the floating basin 2 of plantation adopts HDPE (high density polyethylene(HDPE)) to make, and be specifically of a size of 330*330*65mm, thickness is 1-2.5mm, specifically selects 2.0mm in the present embodiment, supports plantation basket 1 so that more effective; Housing adopts PPR (polypropylenerandom, atactic copolymerized polypropene) tubing to make; Plantation basket anchor is connected by rope 35 with between housing.
Diameter is adopted to be the reinforcing bar 31 of 14mm in spud pile 3; Inner sleeve 32 and outer sleeve 33 adopt DN25 galvanized pipe; And the length of every root spud pile 3 is 4m, the top of spud pile 3 adopts T-shaped welding, so that spud pile 3 is more convenient to operate.
In micro-pore aeration equipment 5, the external diameter of micro-pore aeration pipeline is
internal diameter is
wall scroll micro-pore aeration pipeline length is 6.8m; Divided by micro-pore aeration pipeline and be two-layerly connected on spud pile 3, upper strata micro-pore aeration pipeline is connected to underwater 0.67m, and lower floor's micro-pore aeration pipeline is connected to underwater 1.35m; Effective aeration rate of micro-pore aeration machine is 0.002 ~ 0.006m
3/ min.
Embodiment two:
In the present embodiment, adopt the concrete selection of embodiment one to apply, detailed process is:
In river course, Xihu District of Hangzhou City, adopt the ecological floating island device of a kind of aeration that is coupled of the present utility model to carry out enforcement research.
Be specially: the long 860m in this river course, river course width average 20m, river course mean depth 2m, the thick 0.3m of bottom of river channel mud, sluggish flow.River course periphery has rural area, community's life's sewage discharge, and water body is smelly darkly, and turbidity is comparatively large, if pollution of estuary owner total nitrogen, total phosphorus, organism exceed standard, water quality of river is totally in bad V class.
In this experimental example, be evenly distributed arrange 5 ecological floating island devices of the present utility model along whole piece river course, fountain aeration operation every day 8h, the operation of micropore gas explosion carry out aeration 12h with 1h interval.
The present embodiment was through the purifying treatment of about 8 weeks, and river water quality improves successful, the clearance of COD, ammonia nitrogen, total nitrogen, total phosphorus reach respectively 31%, 45%, 35% and 32%, SS drop to 33 from 55, decontamination effect improving is obvious.
Embodiment three:
In the present embodiment, adopt the concrete selection of embodiment one to apply, detailed process is:
In river course, Xihu District of Hangzhou City, adopt the ecological floating island device of a kind of aeration that is coupled of the present utility model to carry out enforcement research.
Be specially: the long 8.5km in river course, river course width average 22m, river course mean depth 2.3m, the thick 0.23m of bottom of river channel mud, sluggish flow.Have around river course that domestic sewage in rural areas discharges, agricultural irrigation water outlet, cause that river course organic pollutant content is high, dissolved oxygen is low, waterplant is difficult to growth.
In the present embodiment, choose experiment channel length about 1000 meters, be evenly distributed and arrange 5 the utility model ecological floating island devices, fountain aeration operation every day 8h, the operation of micropore gas explosion carry out aeration 12h with 1h interval.
The present embodiment was through the purifying treatment of about 12 weeks, and between trial plot, river water quality improves successful, the clearance of COD, ammonia nitrogen, total nitrogen, total phosphorus reach respectively 42%, 49%, 39% and 46%, SS drop to 24 from 65, decontamination effect improving is obvious.
The mode that the ecological floating island device employing ecological floating island of a kind of aeration that is coupled of the present utility model and fountain aeration technology, micro-pore aeration technology combine, farthest make use of the advantage of root system of plant catalytic oxidation, ensure the content of oxygen in water body, also for quick growth of plant provides favourable condition while providing favourable condition for each pollutant of fast degradation water body, further, waterplant and fountain aeration technology can also strengthen the landscape effect of ecological floating island; By improving the fixed form of ecological floating island, make the fixing more firm solid of ecological floating island, meanwhile, also can ensure that ecological floating island is with water level, water flow variation and changing, and ensures the relatively stable of ecological floating island by the sleeve connection between ecological floating island and spud pile; Adopt the double-deck micro-pore aeration pipeline arranged, further can increase aeration rate, ensure effectively carrying out of water body purification, simultaneously, double-deck micro-pore aeration pipeline separately can connect two Fans or connect a Fans simultaneously, and arranging orientation and can carrying out unrestricted choice of blower fan, applies more flexible.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make and suitably improving and distortion, these improve and distortion also should be considered as protection domain of the present utility model.