CN101318718A - Bionic reinforced scouring method for landscape water environment - Google Patents
Bionic reinforced scouring method for landscape water environment Download PDFInfo
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- CN101318718A CN101318718A CNA2007101001711A CN200710100171A CN101318718A CN 101318718 A CN101318718 A CN 101318718A CN A2007101001711 A CNA2007101001711 A CN A2007101001711A CN 200710100171 A CN200710100171 A CN 200710100171A CN 101318718 A CN101318718 A CN 101318718A
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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
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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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
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/33—Wastewater or sewage treatment systems using renewable energies using wind energy
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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
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
The invention discloses a biomimetic powerful purification method for water environments of enclosed and semi-enclosed landscapes, which adopts comprehensive treatment for pollution inside and outside lakes, pollution from point sources and surface sources, and pollution from inner sources and outer sources. A lake body shape suitable for flowing, an adequate lake body depth, an ecological revetment, ecological seepage prevention, and a water body balance regulating weir are set; a rapid segregation purification bed process, a rapid segregation treatment process and a wetland process are adopted to supplemented water for biomimetic biopurification treatment; a flow-discarding filtering device is adopted to treat rainwater which is subject to centralized confluence, surface runoff rainwater adopts a plant infiltration gallery infiltration well system to intercept initial rainwater; in a lake, a botanical system, a biological system, a flow-pushing reaeration purifier, a biomass multiplication system and substrate sludge are adopted to steadily and fixedly perform the biomimetic biopurification treatment. The method can improve the self-cleaning ability of enclosed and semi-enclosed water bodies, prolong the cleanliness time of water quality of the water bodies, can achieve the long-term retention of the water quality of the water bodies by less manual intervention, is particularly suitable for enclosed and semi-enclosed lake treatment and river treatment, maintains the ecological balance of lakes and the rivers, and improves the environment.
Description
Technical field
The present invention relates to a kind of water treatment technology, particularly a kind of comprehensive regulation, lifting sealing semi-enclosed water body self-purification ability, indirect labor strengthen the bionic reinforced scouring method for landscape water environment of bionical processing.
Background technology
Water is the basis of human survival; Natural waters such as rivers,lakes and seas are one of important environment of human lives, just the natural, ecological water surrounding.
But along with people's the activity in production and the raising day by day of life, the wastewater and sewage that produces is more and more severe for the pollution of rivers,lakes and seas, to such an extent as near the rivers lake severe contamination quite a few natural water area, the especially city causes living environment deterioration, water supply capacity to descend or the like.
For coming on the inevitable referred schedule of the purification of the sealing of natural, ecological water surrounding, particularly city, semi-enclosed landscape water bodies.
Rivers lake and manmade landscape, artificial landscape's water body itself just have the self-purification ability, can resist the pollution that comes from the outside to a certain extent, keep water quality.Yet its self-purification ability is limited, when external pollution during greater than this self-purification ability, just causes the pollution in rivers lake.Even more serious is, this variation sometimes almost is irreversible, the sealing semi-enclosed landscape water bodies in city particularly, the water body capacity is little, flow velocity slowly, even not mobile, water quality is long update time, water body seepage ability is low, seriously polluted, self-purification capacity is poor, and water surrounding keeps, the reparation difficulty is big.Water pollution mainly shows two aspects, the one, and the exceeding standard of organic pollutant, organic pollutant is too much, the dissolved oxygen deficiency, the black foul sewage of the water body that foul smell that anaerobic digestion produces and black liquor cause is dyed; The 2nd, eutrophication pollution, nitrogen in the water, phosphorus content are many, cause algae to breed the formation wawter bloom unusually, have almost become inevitable process.
Make a general survey of present China landscape water environment Research And Engineering and use, main following several aspects of concentrating: a, enter the contaminated water quality treatment technology of landscape water body; B, microorganism are cultivated, the research of domestication, obligate bacterium; C, artificial plant shore protection; The removal of d, nitrogen, phosphorus; E, water reoxygenation; F, bed mud are removed and are covered; G, algae control techniques etc.The characteristics of these Research And Engineerings are: pay attention to the part, ignore system, and more to water body research application, and less to the interaction relation research of water body and surrounding enviroment.It is less as an organic whole research to be about to landscape water environment.As having adopted many compulsive means of thinking in the present urban look water environment treatment technology, as: chemical agent precipitation, strong oxidative degradation technology, chemical agent remove algae, bed mud covering etc., though under certain period, certain condition, play the part governance role, but because these means are not the original existence of nature, manual intervention has too seriously caused other related side effects.Such as: though the copper sulfate that manually adds can suppress algal grown to a certain extent, do not eliminate the basic reason of algae raised growth, cause heavy metal on the contrary and the injury of other aquatic organism.
Summary of the invention
The present invention is in order to remedy above-mentioned deficiency, provide a kind of especially to improve water body self-purification ability, bionic reinforced manual handling is auxilliary, the inside and outside comprehensive regulation in lake, comprise the bionical recovery of water body: adopt bionics techniques to recover, repair, improve the biological cycle chain, water body is bionic reinforced: adopt the enhanced biological function, utilize electric energy, wind energy, sun power, water body is circulated, increase dissolved oxygen content, impel microorganism growth and organism to decompose, cooperation is to the processing of make up water, make water body reach running balance, the bionical structure of water body: adopt in water surrounding and rationally introduce, replenish, the enhanced biological species, to be configured to the master naturally, artificial means are auxilliary, make species diversity and mutual balance in the system, recover the bionic reinforced scouring method for landscape water environment of the self-purification ability of natural, ecological water with few manual intervention of trying one's best.
The bionical powerful purifying method of landscape water environment of the present invention comprises:
By the hydrology and kinetics principle excavation or repair the lake body that is shaped as thin-and-long, in the body of lake, form the downstream, upstream;
Determine the degree of depth of lake body by the requirement of self purification of water body, for shallow excessively lake body, part is dug deeply near the center of lake body at least, and the lake body is carried out antiseepage handle, and guarantees ventilative blocking water, and forms ecological lakebed;
According to the ventilative anti-collapse principle that blocks water ecological revetment is set;
Going downstream in the lake is provided with several regulation of level weirs, makes and is beneficial to water mobile drop, avoids producing the dead band;
In the lake, make up botanical system, biosystem, biological species proliferating system;
Place several plug-flow reoxygenation cleaners at lake bottom;
In order to the biological fixation technology is that main, physically stable is the comprehensive treatment technique of assisting, the bed mud in stable and the fixing lake;
Each part make up water to the lake body all is provided with make up water advanced treatment district, use quick-decomposing biological treatment process, speed to divide a kind of, several in clean-up bed, artificial swamp, air-float technology, filtration process, coagulation process, the chemical dosing technology in make up water advanced treatment district or all make up water is carried out advanced treatment, the make up water after the processing is delivered to the upstream of lake region;
Rainwater in body peripheral region, lake compiles the rain water drainage filtration unit is set, and afflux rainwater selectivity is sent into the lake region; Adopt plant infitration galleries seepage well system the initial stage of carrying out to hold back processing to the littoral runoff rainwater of lake body, organism, the more rainwater of sediment charge entered the lake body at the beginning of minimizing was rained.
The external depth of round treatment zone that is provided with causes the circular treatment district to the water in downstream, lake region in the lake, forces to deliver to the upstream, lake region after the processing again.
The bionical powerful purifying method of landscape water environment of the present invention, described ecological revetment are one or more of employing ventilation property and water preventing ability good plant bank protection, timber shore protection, stone material shore protection and gabion shore protection.
The bionical powerful purifying method of landscape water environment of the present invention, described botanical system are included in submerged plant, floatingleaved plant, pleuston, emergent and the quality plant of cultivation different levels existence in the water body; Described biosystem is included in high waterplant, is attached to microorganism in waterplant root, stem, leaf and the river bottom protection bed mud, lives in the hydrocoles that different water layer feeding habits differ; Described biological species proliferating system is to dig Shen Qu in lake body, bank protection, shore protection and part, and the bigger bio-carrier material of specific surface area is set, and increases the biological existence space in the water body.
In the bionical powerful purifying method of landscape water environment of the present invention, it is in the current channel of long 20-80m that described speed is divided clean-up bed, divide 3-4 section excavation width 1.2-2.5m, the clean-up bed of degree of depth 1.5-2.5m, the interior fast purifying ball that divides of a large amount of biologies of filling every period fast branch between the clean-up bed, is provided with 1-2 platform underwater jet aeration machine, or the concentrated aeration that adopts blower fan to divide bottom, purifying ball pond that boring aeration pipe is set in speed, speed divides clean-up bed to be provided with along the water body bank.
The bionical powerful purifying method of landscape water environment of the present invention, described quick-decomposing biological treatment process is that make up water is carried out advanced treatment, makes up the structures of fast divisional processing, fills quick-decomposing biological ball filler in structures, the bottom is provided with boring aeration pipe.By compressed air unit and pipeline, carry pressurized air to fast bulb separation bottom.
The bionical powerful purifying method of landscape water environment of the present invention, described wet land technique is with make up water and the recirculated water artificial constructed wetland of controlledly batching, make it the interior soil of wetland and be in state of saturation, utilize the acting in conjunction of wet terraneous water-fast marsh plant, soil, the water quality that degraded, purification are flowed through.
The bionical powerful purifying method of landscape water environment of the present invention, described plug-flow reoxygenation cleaner is to be fixed with plug-flow mixing guide pipe on a base, in the current introducing port of described plug-flow mixing guide pipe, be provided with the plug-flow water screw, be supported on the jet pump housing with oar axle that the plug-flow water screw joins and be connected with axle on the submersible machine, the described jet pump housing and submersible machine are fixed on the base, and described current introducing port place is communicated with inlet pipe.
The bionical powerful purifying method of landscape water environment of the present invention, described rain water drainage filtration unit is an a kind of automatization control rainwater harvesting device, and with upper outlet, one of them outlet is the channel that connects the lake region by some inlets and two, an outlet connects the municipal wastewater pipeline, respectively puts valve control.
The bionical powerful purifying method of landscape water environment of the present invention, described plant infitration galleries seepage well system abandons canal for oozing with a certain distance from loke shore bank digging along the lake, and press the some seepage wells of descending direction arranged spaced, but abandons canal surface cultivated plant or laying cobble oozing.
The bionical powerful purifying method of landscape water environment of the present invention, one or more in the described depth of round treatment zone in employing speed branch decontamination of biological treatment process, speed branch clean-up bed, artificial swamp air-float technology, filtration process, coagulation process, the chemical dosing technology carry out advanced treatment to recirculated water.
The bionical powerful purifying method of landscape water environment of the present invention adopts the comprehensive regulation in the lake outside the lake, improved the self-purification ability of natural, ecological water, effective to water purification, the hold-time is long, only need less manual intervention just can reach and keep the limpid of lake water for a long time, especially be fit to larger area lake treatment and river improvement, keep its eubiosis, improve environment.
Description of drawings
Fig. 1 is the floor map of the bionical powerful purifying method of landscape water environment of the present invention;
Fig. 2 is the diagrammatic cross-section of the bionical powerful purifying method of landscape water environment of the present invention.
Embodiment
For further setting forth the bionical powerful purifying method of landscape water environment of the present invention, do more detailed explanation below in conjunction with embodiment.
Present embodiment adopts the inventive method, adopts outside the lake and handles processing+lake water pump circulation water conditioning=water body maintenance in (point, the control of face source)+lake; Specifically see Fig. 1.
Shaped design 10 is carried out in the lake region, make it meet the hydrology and kinetics principle, generally answer length greater than width, form the downstream, upstream in the lake region, water flows in the promotion lake region.
Loke shore is provided with ecological revetment 8, and the ecological revetment construction should be followed the hydrology and kinetics principle, stable principle, ecological property principle, view principle and wetting ability principle, and ecological revetment is set on every side in different waters.The ecological revetment material can be divided into four types of plant bank protection, timber shore protection, stone material shore protection and gabion shore protections, also can divide shore protection, rectangle shore protection, compound shore protection and double-deck shore protection in echelon, can also be divided into hydrophilic shore protection, view shore protection, animal shore protection according to the function of shore protection according to the river cross-section form.
At different river cross-sections, design ecological revetment, ecological lakebed selectively, promptly at side slope, lakebed, spherical porous material is set, form ecological lake.The ecological revetment of native system, ecological lakebed should with the characteristics of different waters function, carry out different settings according to whole Garden Planning in the sub-district.
For guaranteeing flowing of lake region water, going downstream in the lake region sets gradually some water level balance regulating weirs 7, can adjust the mill weir that blocks of height exactly, and the people causes not waiting of the water level lake region in, guarantees the degree of depth of lake water, strengthens the mobile of lake region water.
Handling outside the lake is to the anticipating of lake body make up water, and comprises that rainwater is handled and sanitary wastewater is handled, and rainwater is divided into again that face replenishes and additional two kinds of point source; Sanitary wastewater generally is to enter the lake region by compiling to concentrate, and also is a kind of point source make up water.
Rainwater is relatively clean, and organism, foreign matter content are few, just at the rainy initial stage, carries more pollutent and silt easily, and promptly the organism of early-stage rainwater, silt equal size are very high.Adopt special purification style for rainwater, wherein for the additional rainwater of point source, adopted rain water drainage filtration unit 1, this is a kind of automatization control rainwater harvesting device, with upper outlet, wherein several inlets are collected the rainwater of different directions by some inlets and two, and an outlet is the channel that connects the lake region, an outlet connects the municipal wastewater pipeline, respectively puts valve control.This device can detect the degree of cleaning of rainy time and afflux rainwater automatically, at the rainy initial stage, because dust, silt are more in the rainwater, relatively more muddy, the rain water drainage filtration unit is opened the valve that connects the municipal wastewater pipeline, and the afflux rainwater flows into the municipal wastewater pipeline, and does not enter the lake region; When the afflux rainwater was clear, the rain water drainage filtration unit was opened the valve that connects the lake region, and the afflux rainwater is replenished into lake region.The whirlwind-type filtration unit is arranged in the rain water drainage filtration unit, in device, produce eddy flow behind the rainwater harvesting, rainwater is once filtered, more clean to guarantee the water that enters the lake region.
For the rainwater that flows directly into from ground around the lake region (the face source replenishes), can around loke shore, adopt the early-stage rainwater control techniques, around loke shore, dig plant infitration galleries seepage well system 6 exactly, infitration galleries is located at around the loke shore, seepage well is located at the difference on the infitration galleries, generally be provided with at interval and get final product, some plants of plantation or be paved with cobble in the infitration galleries with direction of fall.At the rainy initial stage, when the rainwater around the lake region flows to the lake region, flowing into the plant infitration galleries earlier confluxes to seepage well again, have only 6 times milliosmolaritys of plant infitration galleries seepage well system of working as less than the remittance amount, after being full of rainwater in the sewer, just can flow into the lake region, this enters the lake region with regard to having been avoided the higher early-stage rainwater of Pollutant levels.
For sanitary wastewater, owing to wherein contain a large amount of organic pollutants, inorganic impurity, simple filtration treatment technology is not all right, should carry out deep purifying and handle.Generally a make up water advanced treatment district 12 is set on the inflow approach of every sanitary wastewater make up water, in this district, selects for use speed to divide clean-up bed, speed to divide one or several the combination in biochemical process, wet land technique, air-float technology, filtration process, coagulation process, the chemical dosing technology that make up water is carried out advanced treatment according to factors such as pollution condition, surrounding environment.Wherein:
Speed is divided clean-up bed technology:
It is in the current channel of long 20-80m that speed is divided clean-up bed, divide the 3-4 section, excavation width 1.2-2.5m, the clean-up bed of degree of depth 1.5-2.5m, wherein fill a large amount of biological speed and divide purifying ball, divide between the clean-up bed every section speed, 1-2 platform underwater jet aeration machine is set, or adopt blower fan to divide bottom, purifying ball pond that the concentrated aeration of boring aeration pipe is set in speed.Utilize biological speed to divide the difference of the inside and outside flow velocity of spheroid that purifying ball caused, the suspended particle that carries in the water body (non-stream is separated the organism, solid particulate, zoogloea of state etc.) is assembled by the slow solid-liquid interface of the fast main body current direction flow velocity of flow velocity, reached the purpose of solid-liquid separation.Simultaneously, by the watercourse aeration effect of water body and the huge carrier surface of fast bulb separation, make the microorganic adhesion breeding on its surface, generate microbial film, under the effect of aerobic, an oxygen, grey oxygen bacterium, organism is degraded, speed divides clean-up bed to be provided with along the water body bank.
Biological speed is divided purifying ball, claims speed to divide biochemistry ball again, and separate case is declared patent.Biological speed branch purifying ball is placed by several porous particles and forms spheroid or approximate spheroid in the spherical guard, the particle diameter of porous particle is 2.5cm～6cm, described sphere diameter is 100～600mm, the proportion of described spheroid is greater than 1, porous particle be shaped as sphere and/or elliposoidal and/or polyhedron shape, the material of porous particle be zeolite and or medical stone or haydite, or haydite, cement, sand and water extrusion be shaped, or slag, cement, sand and water extrusion are shaped; Spherical guard is that two dome-type guards are formed, and two dome-type guards snap together by the grafting barb which is provided with.
The quick-decomposing biological treatment process:
The quick-decomposing biological treatment process is that make up water is carried out advanced treatment, makes up the structures (can underground, semi-underground, on the ground) of fast divisional processing, fills quick-decomposing biological ball filler in structures.The bottom is provided with boring aeration pipe.By compressed air unit and pipeline, carry pressurized air to fast bulb separation bottom.Satisfy the aerobic microbiological oxygen requirement and cause current difference between main body current and the solid-liquid interface, assemble suspended particle, utilize the microorganism, the pollutent in the degradation water, the organism that adhere on the huge carrier surface of fast bulb separation.
Artificial wetland process:
The artificial swamp technology is to mix and form bed of packings with soil and filler (as gravel etc.) for disposing of sewage artificially on the depression that the certain long-width ratio and the bottom surface gradient are arranged, make sewage mobile or mobile in the filler slit of bed body in the bed surface, and it is good to have performance in the plantation of bed surface, the surviving rate height, water resisting property is strong, growth cycle is long, and waterplant (as reed, the stem or leaf of cattail etc.) attractive in appearance and economically valuable forms the animals and plants ecosystem of a uniqueness.
The pollutent that artificial swamp is removed is in extensive range, comprises N, P, SS, organism, trace element, pathogenic agent etc.Relevant result of study shows that under the lower condition of influent concentration, artificial swamp can reach 85% to the clearance of BOD5---95%, and the COD clearance can reach more than 80%, and the concentration of BOD5 is about 10mg/l in the treat effluent, and SS is less than 20mg/l.(2) most of organism finally is converted into microbe and CO2, H2O as the organic nutrient of peculiar microorganism in the waste water.The artificial swamp area needs the Pollutant levels according to processed water quality, the water quality requirement after the processing, handles the structure of the water yield, artificial swamp, finally determines in conjunction with local environment again, can be in the fringe area, and also can near construction sewage disposal plant effluent.Secondary effluent from sewage treatment plant or artificial lake water are entered, utilize institute's kind of plant that it is strengthened handling, improve its water quality, and then enter nature or artificial water system, as its additional water source, the protection water body.
Air-float technology, filtration process, coagulation process, chemical dosing technology is several is present known current techique, is not repeated here.
Even if make up water outside the lake is handled, still need to strengthen self-purification capacity in the lake, its method mainly contains the construction of plug-flow reoxygenation cleaner 2, biological proliferating system 4, botanical system 5, biosystem 3 etc., all these measures, can adopt wherein several or whole respectively according to the pollution condition and the purification requirement of water in the lake.
Biosystem 3:
Complete aquatic ecosystem mainly by high waterplant, live in the hydrocoles that different water layer feeding habits differ, attached to a large amount of microorganisms in the bed mud of river bed, waterplant root, stem, leaf and portion water lively object inland river.Waterplant absorbs the synthetic plant materials that grows by photosynthesis with mineral substance such as the nitrogen in the water, phosphorus, potassium in this system, for other biology provides nutritive substance directly or indirectly; Microorganism then is " cleaner " in the water body, the corpse of the movement of hydrocoles, food remains, organism, the part pollution substance that enters water body are decomposed, prevent its putrid fermentation contaminate environment, make that the material cycle in the water body can recirculation, do not occur being interrupted; The animal of different feeding habits has certain ingestion ability to the suspended substance in the water body, phosphorus, zooplankton etc.
Different foods, the hydrocoles of different water layers, can carry out direct or indirect regulation and control to plant in the whole aquatic system and microorganism, prolonged biologic chain, the stability of increase system, the fish that increased the diversity filter-feeding of system mainly are to swim moving with the filter food, plant and algae detritus are main, the animals and plants that swim mainly contain diatom, chrysophyceae, latent algae, green alga, blue-green algae, Euglena etc., common zooplankton has rotifers, cladocera, spiral shells such as copepods, mollusks such as freshwater mussel are because they are animals of filter food, so help the purification of water quality, freshwater mussel removes algae and the organic debris filter food that suspends in the water, improved the transparency of lake water, the algae that spiral shell is mainly ingested set secretes the material of short flocculation simultaneously, make the suspended matter flocculation in the lake water, impel water to become clear.
The main food of some herbivorous fishes is wheel blade algae, poly-grass, eel grass, water caltrop, p.malaianus or the like, and the few herbivorous fishes of quantity can not threaten to the hornwort and the water caltrop of heavy water, can also promote the growth of plant materials on the contrary.
Botanical system 5:
Technological angle from water treatment, in the water body different levels different waterplant is set---submerged plant, floatingleaved plant, pleuston, emergent, quality plant etc., the basis can be provided for the existence of other compositions of aquatic ecosystem, itself also can pass through root, stem, leaf adsorption, organic pollutant in the Degradation and Transformation water body is removed away organic pollutant by the form of results plant materials then from the system of waters.
The effect of A emergent:
Emergent can absorb nutritive elements such as nitrogen, phosphorus in water, the bed mud, suppresses the breeding of the algae of movie theatre elements such as same absorbed nitrogen, phosphorus by the competition approach.
Bacterium, zooplankton, living algae can be adsorbed on emergent the branch bar on, form a huge coenosis, very strong to the cleaning action of water quality.
Water is when flowing through emergent group, suspended substance in the water, macromolecule organic are because the barrier effect of plant, reach the mucous cohesion of plant surface Institute of Micro-biology excretory and sedimentation, reduce the opacity of water, emergent passes through the bar of hollow to the root oxygen supply, improves the root aerobic environment of bed mud on every side.
The effect of B submerged plant:
The whole plant of submerged plant all is in the water, root, stem, leaf etc. can adsorb the nutritive substance of the tax category, aspect nutrient competition, occupied great advantage, and submerged plant is the main oxygen source of whole water body, provide the required oxygen of surviving to other biological, also for hydrobiont provides the required space of surviving, can perch, hide harmful animal simultaneously at this.Submerged plant is in case formation is highly suitable and density, and its canopy can intercept most of solar energy, forms the stronger ability of shading, and intensive light retarding effect is taken place its planktonic algae below canopy, grows thereby suppress planktonic algae.
The effect of C floatingleaved plant:
The cane of floatingleaved plant, can be for the bacterium in the water, zooplankton, living algae the place that depends on be provided, floatingleaved plant floats on the water surface owing to blade simultaneously, can influence the reflectivity of sunlight in water, can suppress algal grown, but also make the lower floor submerged plant can not get enough sunlight, and can not carry out light and effect, reduced the contact area of oxygen G﹠W in the air simultaneously, reduced the content of dissolved oxygen in water, so will control the distribution area of floatingleaved plant at the water surface.
The effect of D pleuston:
Nutritive substance there is very strong adsorptive power, can directly from sewage, be adsorbed with harmful substances and superfluous nutritive substance, but purifying water body.But their reproductivity is very strong, and can drift about along with the distribution difference of nutritive substance in current and the water.So be to limit the scope of its vegetative activity for the key of pleuston control.
Plug-flow reoxygenation cleaner 2:
Plug-flow reoxygenation purification process is to adopt plug-flow reoxygenation cleaner, plug-flow reoxygenation cleaner is to be fixed with plug-flow mixing guide pipe on base, current introducing port place at described plug-flow mixing guide pipe is provided with the plug-flow water screw, be supported on the jet pump housing with oar axle that the plug-flow water screw joins and be connected with axle on the submersible machine, the described jet pump housing and submersible machine are fixed on the base, and described current introducing port place is communicated with inlet pipe.When the driven by motor water screw rotates, water is flowed with certain speed in plug-flow mixing guide pipe and penetrate from port, promoting water body produces mobile, meanwhile, because acting on of current produces negative pressure in certain zone, can suck air to plug-flow mixing guide pipe inner chamber from inlet pipe, current are fully contacted with air, reach the effect of water quality being carried out reoxygenation, thereby purified water quality, organism can decompose under the oxygen enrichment situation fully in the water.
Biological species proliferating system 4:
Landscape water environment is because artificial constructed, and natural, ecological synthesis is difficult to form, and is various biotic population coexistences in the assurance system, various material normal circulation.The biomass of water surrounding must be set.By the ecomaterial of lake body, bank protection, shore protection, the part is dug the ecomaterial of dark protecting wire net or in the certain depth zone, the bigger bio-carrier material of specific surface area is set, and increases the biomass of water body directly, indirectly.
At last, also need when being necessary lake Nei Shui is carried out mandatory outer circulation.In the downstream, lake region, an if effluent weir 11, when this place's water quality is lower than requirement, employ the outer circulation treatment system, mandatory outer circulation is to make up a recirculated water advanced treatment district 13 outside the lake region, quick-decomposing biological treatment process, the speed that adopts tops to introduce in recirculated water advanced treatment district 13 is divided a kind of, several or whole in clean-up bed, artificial wetland process, air-float technology, filtration process, coagulation process, the chemical dosing technology, and the recirculated water after the processing adds to the lake region by forcing to promote the back again from the water distributor 12 of upstream, lake region.
Use the bionical powerful method synthesis that purifies of landscape water environment of the present invention to administer water system, the self-cleaning that has effectively kept water body self The change ability can be by the least possible manual intervention, obtain best natural, ecological water purifying effect, by actual items Test is present best natural, ecological method for purifying water.
Claims (10)
1, a kind of bionic reinforced scouring method for landscape water environment comprises air-float technology, filtration process, coagulation process, chemical dosing technology, it is characterized in that:
By the hydrology and kinetics principle excavation or repair the lake body (10) that is shaped as thin-and-long, formation downstream, upstream lake body (10) in;
Determine the degree of depth of lake body by the requirement of self purification of water body, for shallow excessively lake body, part is dug deeply near the center of lake body at least, and the lake body is carried out antiseepage handle, and guarantees ventilative blocking water, and forms ecological lakebed (9);
According to the ventilative anti-collapse principle that blocks water ecological revetment (8) is set;
Going downstream in the lake is provided with several regulation of level weirs (7), makes and is beneficial to water mobile drop, avoids producing the dead band;
In the lake, make up botanical system (5), biosystem (3), biological species proliferating system (4);
Place several plug-flow reoxygenation cleaners (2) at lake bottom;
In order to the biological fixation technology is that main, physically stable is the comprehensive treatment technique of assisting, the bed mud in stable and the fixing lake;
Each part make up water to the lake body all is provided with make up water advanced treatment district (12), use quick-decomposing biological treatment process, speed to divide a kind of, several in clean-up bed, artificial swamp, air-float technology, filtration process, coagulation process, the chemical dosing technology in make up water advanced treatment district or all make up water is carried out advanced treatment, the make up water after the processing is delivered to the upstream of lake region;
Rainwater in the body peripheral region, lake compiled rain water drainage filtration unit (1) is set, send into the lake region compiling the rainwater selectivity;
Adopt plant infitration galleries seepage well system (6) initial stage of carrying out to hold back processing to the littoral runoff rainwater of lake body, organism, the more rainwater of sediment charge entered the lake body at the beginning of minimizing was rained.
The external depth of round treatment zone (13) that is provided with causes the circular treatment district to the water in downstream, lake region in the lake, forces to deliver to the upstream, lake region after the processing again.
According to the bionic reinforced scouring method for landscape water environment of claim 1, it is characterized in that 2, described ecological revetment (8) adopts one or more in ventilation property and water preventing ability good plant bank protection, timber shore protection, stone material shore protection and the gabion shore protection.
According to the bionic reinforced scouring method for landscape water environment of claim 2, it is characterized in that 3, described botanical system (5) is included in submerged plant, floatingleaved plant, pleuston, emergent and the quality plant of cultivation different levels existence in the water body; Described biosystem (3) comprises high waterplant, is attached to microorganism in waterplant root, stem, leaf and the river bottom protection bed mud, lives in the hydrocoles that different water layer feeding habits differ; Described biological species proliferating system (4) is to dig dark district in lake body, bank protection, shore protection and part the bigger bio-carrier material of specific surface area is set, and increases the biological existence space in the water body.
4, according to the bionic reinforced scouring method for landscape water environment of claim 3, it is characterized in that, it is in the current channel of long 20-80m that described speed is divided clean-up bed, divide 3-4 section excavation width 1.2-2.5m, the clean-up bed of degree of depth 1.5-2.5m, a large amount of biological speed of interior filling is divided purifying ball, divide between the clean-up bed every section speed, 1-2 platform underwater jet aeration machine is set, or the concentrated aeration that adopts blower fan to divide the clean-up bed bottom that perforated pipe is set in speed, speed divides clean-up bed to be provided with along the water body bank.
5, according to the bionic reinforced scouring method for landscape water environment of claim 4, it is characterized in that, described quick-decomposing biological treatment process is the structures that make up fast divisional processing, in structures, fill quick-decomposing biological ball filler, the bottom is provided with boring aeration pipe, by compressed air unit and pipeline, carry pressurized air to fast bulb separation bottom, make up water is carried out advanced treatment.
6, according to the bionic reinforced scouring method for landscape water environment of claim 5, it is characterized in that: described wet land technique is with make up water and the recirculated water artificial constructed wetland of controlledly batching, make the interior soil of wetland be in state of saturation, utilize the acting in conjunction of wet terraneous water-fast marsh plant and soil, the water quality that degraded, purification are flowed through.
7, according to the bionic reinforced scouring method for landscape water environment of claim 6, it is characterized in that: described plug-flow reoxygenation cleaner (2) is to be fixed with plug-flow mixing guide pipe on a base, in the current introducing port of described plug-flow mixing guide pipe, be provided with the plug-flow water screw, be supported on the jet pump housing with oar axle that the plug-flow water screw joins and be connected with axle on the submersible machine, the described jet pump housing and submersible machine are fixed on the base, described current introducing port place is communicated with inlet pipe, and the air outlet is not in water.
8, according to the bionic reinforced scouring method for landscape water environment of claim 7, it is characterized in that, described rain water drainage filtration unit (1) is a kind of automatization control rainwater harvesting device, some inlets and two are arranged with upper outlet, one of them outlet is the channel that connects the lake region, an outlet connects the municipal wastewater pipeline, respectively puts valve control.
9, bionic reinforced scouring method for landscape water environment according to Claim 8, it is characterized in that, described plant infitration galleries seepage well system (6) abandons canal for oozing with a certain distance from loke shore bank along the lake digging, and press the some seepage wells of descending direction arranged spaced, but abandons canal surface cultivated plant or laying cobble oozing.
10, bionic reinforced scouring method for landscape water environment according to Claim 8, it is characterized in that one or more in the described depth of round treatment zone (13) in employing speed branch decontamination of biological treatment process, speed branch clean-up bed, artificial swamp, air-float technology, filtration process, coagulation process, the chemical dosing technology carry out advanced treatment to recirculated water.
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