CN104402112A - Material-filled cylinder for water in-situ purification and construction method thereof - Google Patents
Material-filled cylinder for water in-situ purification and construction method thereof Download PDFInfo
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- CN104402112A CN104402112A CN201410629034.7A CN201410629034A CN104402112A CN 104402112 A CN104402112 A CN 104402112A CN 201410629034 A CN201410629034 A CN 201410629034A CN 104402112 A CN104402112 A CN 104402112A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
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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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- Biodiversity & Conservation Biology (AREA)
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- Hydrology & Water Resources (AREA)
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- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The invention relates to a material-filled cylinder for water in-situ purification and a construction method thereof. A cheap material is used to create a roughly-enclosed cylinder structure, wherein the cross-section of the cylinder can be in a round shape, a rectangular shape, an egg shape, or the like. Plastic filling materials (a semi-soft filling material or a soft filling material) are filled into the cylinder. The cylinder can be provided with an aeration device and a pipeline. Then the purification cylinder is arranged under water to a certain depth and forms an inclined angle with the horizontal direction. Through the scheme mentioned above, the water in a deep position can be introduced into the cylinder, and then the water is purified in the cylinder and is conveyed to the water surface so as to increase the oxygen content of the water. Due to the enclosed cylinder structure, the problem that shallow water purification efficiency is very low for most aeration methods is solved. The provided cylinder has the characteristics of rapid effect, high efficiency, and multiple functions. The construction material can be composed of cheap materials, and a frame structure is adopted so as to maximally reduce the cost.
Description
[technical field]
The present invention relates to environmental protection and hydro project technical field, specifically, is a kind of filling tube and construction process thereof of being applicable to in-situ purification of water body.
[background technology]
In recent years, while Economic development, various places water body environment pollution problem emerges in an endless stream, for Wenzhou, Wenruitang river water quality and sediment pollution are very serious, and in urban district, tributary water pollution is still very serious, many secondarys, three grades of river courses are still in the state of severe contamination, water pollutions and the black smelly phenomenon in river, the pool happen occasionally, and form very large interference to the life of Wenzhou people, please the environmental protection chief news of to swim in the river and so on also enjoy reputation everywhere.Therefore the technology tackling water pollution have also been obtained many development, and wherein aeration is exactly the more effective common technology means of one.
This is because aeration assists in removing organic pollutant on the one hand, eliminate black smelly, can also be nitre nitrogen by mineralized nitrogen, eliminate hydrobiological harm; Aeration can improve Dissolved Oxygen in Water content on the other hand, prevents hydrobiont hypoxia death; Finally can also improve water body redox potential, control endogenous pollution of substrate sludge release.Can say that water reoxygenation has a lot of advantages, but water reoxygenation technology in use still faces a lot of difficulty, most distinct issues have following 2 points: (1) energy consumption is higher, and decontamination effect improving needs continued operation to ensure; (2) oxygenation utilising efficiency is low.
Therefore watercourse aeration technology is after being familiar with gradually and being promoted, current various countries expert according to various countries' national conditions, River Hydrology geology and habit, carried out a lot of technological improvement and attempt and supplement.Currently obtain having of more application:
(1) ultramicro air bubble oxygenation technology
This technology originating from Japan adopts specific installation to produce very tiny microbubble, has energy consumption low, the feature that oxygenizement is strong, has certain application at home and abroad, and achieve certain favorable comment.But its greatest problem being difficult to overcome is that equipment is too expensive, be difficult to promote, and need to continue to use to the effect that water body improves.
(2) pure oxygen aeration technology
Because conventional aeration technology is all adopt air as source, but oxygen only accounts for 21% of volume ratio in atmosphere, in the process of blast aeration, mass energy is consumed in on the invalid nitrogen of reoxygenation, therefore some software engineering researchers invent go out this technology of pure oxygen aeration, and drop into application.The object achieving energy consumption reduction equally of this technology, but still equipment complex and expensive cannot be avoided, be difficult to the problem promoted.
(3) the enhanced aeration technology combined with other technologies
In enforcement reoxygenation technology be as the microorganism in water body provides enough oxygen to promote the effect of metabolism oxygen consumption pollutent a large effect, thus realize purification.Therefore investigator is had to turn to combination to utilize microorganism to carry out the approach of oxygen consumption pollutent in direct purification water gradually, as added microbiobacterial agent, increasing the microbial growth media such as filler in water, or external microbially decontaminate equipment is directly adopted to realize bypass purification.These technology achieve the effect of effect promoting really, but use procedure still exists some shortcomings, as: add microbial inoculum effect impermanent, easily lost efficacy; In water, directly lay filler still cannot solve aeration bubbles and to scatter and disappear too fast, that aeration mass transfer utilising efficiency is low problem, particularly in shallow water body (this point at home most pollution waters restoration in be common situation); It is high then to there is construction cost in bypass aeration refining plant, takes up an area the scabrous shortcoming of problem.
Make a general survey of domestic and international present Research, the existing purification techniques for water body oxygen consumption pollutent also reaches far away perfect degree, therefore also needs to explore improvement direction further.
[summary of the invention]
The object of the invention is to the technology improving current aeration purification oxygen consumption pollutent, propose a kind of new filler unit structure design, oxygen utilization efficiency is increased, and decontamination effect improving is ensured, and promotes that water body local circulation exchanges.
The object of the invention is to be achieved through the following technical solutions:
Be applicable to a filling tube for in-situ purification of water body, the tubular structure of filling tube is bottom surface and end face opening, and periphery is closed rectangular column or circular columns.Structure Main Function one guides water (flow) direction to move to water surface obliquely from water body deep layer, and two is control the residence time that aeration bubbles spreads and prolongation gas ducks in drink.
The filler of filling tube inside adopts the hang formed an angle with right cylinder bottom surface, usually angle between 30 ~ 45 degree is selected according to design requirements, make filling tube while superconducting tilting suspension, filler can be increased as much as possible with the contact area of the bubble of banking motion.
Filling tube adopts and forms an angle with the water surface, usually selects angle between 10 ~ 45 degree, be suspended on the mounting means in water obliquely according to the water body depth of water.
Be applicable to a filling tube for in-situ purification of water body, its construction process is:
(1) first adopt metallic substance as periphery tubular structure, metallic substance is selected to adopt the keel of similar shipbuilding n. and frames structure as support structure (frame-space 300mm ~ 800mm), waterproof geotextile or plastics film is adopted to build tubular structure as covering, typical tubular structure diameter is 500 ~ 2000mm, length 2 ~ 10m.When intended diameter is less than 1000mm, hard polyvinyl chloride pipe or other plastic materials also can be selected as outer tubular structure material.
(2) lay filler according to a determining deviation purifying tube is inner, if adopt frames structure, can the rib of tubular structure as point of fixity at tubular structure hangs inside elasticity, half soft or soft plastic filler as microorganism growth substrate; If select plastic pipe to make cylinder, installation filler of can directly holing at a certain distance.
(3) aeration head and airline is laid along the suitable distance in the longitudinal keel interval of framework (adopting frames structure) or tubing (employing plastic pipe) inner side.
(4) after purifying tube has built, hanging under buoyancy aid framework with rigidity or flexible connection forms with single or multiple form combination, and noticing that will purify cylindrical shell tilts to be laid in implement the following appropriate depth of the water body water surface with suitable angle (general recommendations and the water surface are 10 ~ 45 degree of angles).
(5) last above the water surface buoyancy aid stage+module gas blower and power power-line and optional equipment.
Filler material as microorganism growth substrate adopts and the elasticity used in conventional water treatment, half soft or material that soft-filler is the same, usually be made up of polypropylene or polyethylene, there is good biocompatibility, and good endurance (adopts anti-aging formula, its stable performance, there is uvioresistant, the feature such as high temperature resistant, corrosion-resistant, therefore under water more than 8 years also can holding structure stablize).
Concrete technical scheme is as follows:
(1) first use rib and keel first to assemble support frame structure on the coast, framing system transverse pitch is 0.8 ~ 1.8 times of the height of transverse section of filling tube, uses sturdy material as keel series connection framing system and plays and fix each framing system effect;
The material of described framing system is generally metallic substance or bamboo cane, making cross section is the framing system of rectangle, circle or egg type, and keel adopt the skeleton construction at a certain distance each framing system being connected and fixed rear formation support cylinder without the tough and tensile metal strip (pipe) bent or 3 ~ 4, mao bamboon.Described support frame structure, transverse section is rectangle, circle or egg type.
(2) select ordinary elasticity, half soft or soft rope form filler, as shown in accompanying drawing 2,3, utilize adjacent rib structure pitch to form the mode of 30 ~ 45 degree, angle of inclination suspension, utilize the width of frames bar, select suspension 2 ~ 5 layers of filler;
According to frames number n, obtaining filling block quantity is n-1;
Described elasticity, half soft or soft rope form filler, is made up of polypropylene or polyethylene;
(3) after laying aerating apparatus, surround cover framework body structure surface with thin-film material, form tubular structure, can be laid in water after finally adopting rigidity (metal strip) to be connected with surface floating body platform.
Described aerating apparatus adopts common aeration sand head or aeration plate, as Fig. 1-3, be the skeleton construction of rectangle for transverse section, along purifying tube longitudinal section lowermost end, aerating apparatus is arranged on frames, and be communicated with gas blower with blast main, note according to the final vergence direction of framework, 1 or 2 framework of most adjoined water surface can not install aerating apparatus, namely, from the purifying tube lower end after installing, aeration head is front, and filler mooring lower end is rear, interval is arranged, but can not arrange aeration head before last 1 ~ 2 filling block structure.
Described surface floating body platform is specially employing flatlike structure, still can ensure that blower equipment is more than the water surface after the several foam floating body of steel bar welding back lower place bondage can be adopted to make platform connect purifying tube.
Compared with prior art, positively effect of the present invention is:
(1) normally used aeration means, stream effect is necessarily made although also have, but the application scenario due to the overwhelming majority is all shallow water body (lake, river), the bubble produced is many with water (flow) direction in the same way, because water depth is usual less than 2 meters (in fact a lot of river/lake aeration fitting depth in south is less than 1.5 meters), cause bubble to rise to the water surface soon, oxygen-transfer efficiency is extremely low.And filling tube novelty water (flow) direction is separated with aeration bubbles direction of motion that this invention uses, the part that aeration produces is made stream effect and is guided by the tubular structure tilting to install, make current oblique top flowing, thus extend current flow process, make the flow process of bubble before being lost to the water surface will grow many, be equivalent to water body and have also been obtained prolongation in the residence time of aerobic section, thus greatly improve aeration utilising efficiency.
(2) secondly at the inner filler arranged with bubble motion direction near vertical of purifying tube, greatly enhance the ecological niche of microorganism, the biomembrane purification ability of apposition growth is very high.
(3) finally due to the restriction of tubular structure, aeration bubbles should not be scattered and disappeared in local, also to make under lower aeration rate more easily to create the aerobic environment under local environment, thus make the microbial film purification efficiency on filler higher, improve purification efficiency.
Wherein a kind of embodiment is with reference to shipbuilding n. mode for the present invention's design, and use the mode of keel+rib+film covering to build purifying tube main body cover structure, laid down cost is also controlled preferably, and expense is lower.
[accompanying drawing explanation]
Fig. 1 is the process schematic representation one of embodiments of the invention;
Fig. 2 is the longitudinal profile schematic diagram of purifying tube in embodiments of the invention;
Fig. 3 is that purifying tube framing system is arranged and filler hang schematic diagram;
Fig. 4 is square purifying tube drawing in side sectional elevation, explains keel and aerating apparatus setting schematic diagram;
Fig. 5 is circular purifying tube drawing in side sectional elevation, explains keel and aerating apparatus setting schematic diagram;
Fig. 6 is prototype purifying tube drawing in side sectional elevation, refers to adopt plastic pipe as schematic diagram during purifying tube layer structure.
Being labeled as in accompanying drawing: 1-purifying tube, 2-buoyancy aid, 3-water surface carrier table, 4-gas blower; 1-1-purifying tube skin covers gastight material, 1-2-filler, 1-3-aerating apparatus, 1-4-rib cage structure, 1-5-keel (metal or other tenacity materials).
[embodiment]
A kind of filling tube being applicable to in-situ purification of water body of the present invention and the embodiment building application method thereof are below provided.
Embodiment 1
Be made up of Fig. 1, Fig. 2, Fig. 3, Fig. 4, application mode is pressed shown in Fig. 1.For the water body that China urgently repairs, the major part all depth of water is more shallow, therefore advises that use is rigidly connected (as metal pipe material or steel bar), and surface platform uses buoyancy aid to support.Step is as follows:
(1) skeleton construction is built.Purification filling tube is assembled on the coast according to mode shown in Fig. 3, Fig. 4.Cross section is square, therefore the metal strip of one fixed width (as 20 ~ 40cm is wide) can be adopted to be bent into square or rectangle (length and width can be set between 50 ~ 200cm) the rib supporting structure (legend 1-4) as purifying tube, then be screwed after rectangle four summits use tough and tensile metal tube (or angle steel) or multiple metal rib supporting structure is together in series according to a determining deviation (spacing is arranged generally according to 0.8 ~ 1.8 times of rectangle rib support frame height) as spine support fixed sturcture (legend 1-5) by bamboo, form the skeleton construction of the keel+rib in a similar shipbuilding n. process.
(2) hanging filler.See Fig. 3, Fig. 4 mode hanging filler, elasticity, half soft or soft rope form filler can be selected, adjacent rib structure pitch is utilized to form the mode of 30 ~ 45 degree, angle of inclination suspension as shown in Figure 3, utilize the width of frames bar, general selection suspension 2 ~ 5 layers (being the form of 3 layers in Fig. 3) forms filling block, and filler hangs will be covered with whole cross section (as shown in Figure 4).
(3) aerating apparatus is laid.Aerating apparatus and pipeline is arranged see Fig. 3, Fig. 4 schematic diagram, be the skeleton construction of rectangle for transverse section, aerating apparatus (legend 1-3, use common micropore sand head or aeration plate) be arranged on frames, note according to the final vergence direction of framework, 1 or 2 framework of most adjoined water surface can not install aerating apparatus.
(4) the outer covering material of framework is installed.See Fig. 2 schematic diagram, when after the installation of purifying tube primary structure, (cost is in airtight film material, suggestion adopts the agricultural film of polyvinyl chloride or polypropylene material) skeleton construction periphery cylinder is wound around covering several layers, and be adhesively fixed, form the complete structure that restriction bubble scatters and disappears, notice that the cuboid end face of the water inlet of one-piece construction two and water outlet and bottom surface do not need coating film material.
(5) install in assembling surface platform part and final water body.See Fig. 1 signal, adopt angle steel to make a surface platform, lower can bundle several foam or plastic float provides buoyancy that device entirety can be swum on the water surface.Steel bar (being rigidly connected) or wireline (flexible suspension connection) is adopted to assemble as a whole by surface platform and rectangle purifying tube, be arranged in water body, notice that the length of steel bar or wireline should through calculating, ensure purifying tube in water body according to becoming the inclination angle of 10 ~ 45 degree to install with the water surface, concrete inclination angle can make the appropriate adjustments according to water depth, one end that purifying tube is lower is dried up, and body distance from bottom generally should be greater than 40cm to reduce the possibility of disturbance bed mud, the connection length of one end water clearance this one end adjustable that purifying tube is higher and arbitrarily arranging, air source (general employing small power gas blower) is finally installed on surface platform.
Embodiment 2
Difference compared with embodiment 1 is that the purifying tube used adopts cylindrical structural to assemble, and material uses metal sheet or plastic pipe.Introduce building mode below:
(1) mode of similar embodiment 1 is adopted to build keel-frames formula structure, form by by Fig. 1, Fig. 2, Fig. 3, Fig. 5, just transverse section is circular, fixing keel can be selected to be 3 or 4, rib material selects metal sheet to roll or select the plastic pipe of suitable caliber directly to block proper width as rib cage, and other steps are with embodiment 1.
(2) form by by Fig. 1, Fig. 2 and Fig. 6, mode difference is the tubing that directly use one whole is cylindric, does not therefore need keel and coating film, and directly on plastic pipe, filler and aerating system are installed in boring.Other suspensions are identical with embodiment 1 with surface platform (containing gas blower), no longer state.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, without departing from the inventive concept of the premise; can also make some improvements and modifications, these improvements and modifications also should be considered within the scope of protection of the present invention.
Claims (7)
1. be applicable to a filling tube for in-situ purification of water body, it is characterized in that, the tubular structure of filling tube is bottom surface and end face opening, and periphery is closed rectangular column or circular columns.
2. a kind of filling tube being applicable to in-situ purification of water body as claimed in claim 1, is characterized in that, the filler of filling tube inside adopts the hang formed an angle with right cylinder bottom surface, angle between selecting 30 ~ 45 degree.
3. a kind of filling tube being applicable to in-situ purification of water body as claimed in claim 1, is characterized in that, filling tube adopts and forms an angle with the water surface, angle between selecting 10 ~ 45 degree, the mounting means that employing is suspended in water obliquely.
4. be applicable to a filling tube for in-situ purification of water body, it is characterized in that, its construction process is:
(1) first use rib and keel first to assemble support frame structure on the coast, framing system transverse pitch is 0.8 ~ 1.8 times of the height of transverse section of filling tube, uses sturdy material as keel series connection framing system and plays and fix each framing system effect;
(2) select ordinary elasticity, half soft or soft rope form filler, utilize adjacent rib structure pitch to form the mode of 30 ~ 45 degree, angle of inclination suspension, utilize the width of frames bar, select suspension 2 ~ 5 layers of filler;
(3) after laying aerating apparatus, surround cover framework body structure surface with thin-film material, form tubular structure, can be laid in water after finally adopting rigid metal bar to be connected with surface floating body platform.
5. a kind of filling tube being applicable to in-situ purification of water body as claimed in claim 4, it is characterized in that, in described step (1), the material of described framing system is metallic substance or bamboo cane, making cross section is the framing system of rectangle, circle or egg type, and keel adopt the skeleton construction at a certain distance each framing system being connected and fixed rear formation support cylinder without the tough and tensile metal strip bent or 3 ~ 4, mao bamboon.
6. a kind of filling tube being applicable to in-situ purification of water body as claimed in claim 4, it is characterized in that, in described step (1), described support frame structure, transverse section is rectangle, circle or egg type.
7. a kind of filling tube being applicable to in-situ purification of water body as claimed in claim 4, it is characterized in that, in described step (2), described elasticity, half soft or soft rope form filler, is made up of polypropylene or polyethylene.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410629034.7A CN104402112B (en) | 2014-11-10 | 2014-11-10 | A kind of filling tube and construction process thereof being applicable to in-situ purification of water body |
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| CN201410629034.7A CN104402112B (en) | 2014-11-10 | 2014-11-10 | A kind of filling tube and construction process thereof being applicable to in-situ purification of water body |
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| CN104402112B CN104402112B (en) | 2016-04-13 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106379990A (en) * | 2016-10-12 | 2017-02-08 | 北京华夏大禹科技有限公司 | Sewage oxygen charging system and oxygen charging method |
| CN109231498A (en) * | 2018-11-05 | 2019-01-18 | 杨德俊 | A method of utilizing biological film process organic sewage |
| CN109319947A (en) * | 2018-11-05 | 2019-02-12 | 杨德俊 | A kind of biofilm reactor |
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| CN109319947A (en) * | 2018-11-05 | 2019-02-12 | 杨德俊 | A kind of biofilm reactor |
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| CN104402112B (en) | 2016-04-13 |
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