CN103435163B - Method for de-eutrophicating sewage draining exits of residential communities - Google Patents
Method for de-eutrophicating sewage draining exits of residential communities Download PDFInfo
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- CN103435163B CN103435163B CN201310393747.3A CN201310393747A CN103435163B CN 103435163 B CN103435163 B CN 103435163B CN 201310393747 A CN201310393747 A CN 201310393747A CN 103435163 B CN103435163 B CN 103435163B
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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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Abstract
The invention discloses a method for de-eutrophicating sewage draining exits of residential communities, which comprises the following steps: A, selecting a sewage draining exit of a residential community without heavy metal pollution, radioactive pollution and chemical pollution, and according to the population of the residential community, determining a planted area of aquatic plants; B, planting emergent aquatic plants in a shallow water area so that a water body is subjected to ecological restoration, and planting zizania aquatica, lotus roots, calamus, scirpus tabernaemontani and the like in March, wherein once the plants are planted, the plants can sprout every spring and can be harvested in mature seasons; C, planting aquatic vegetables in a water body with a depth of over 0.2 meters by using a floating bed; D, breeding aquatic animals at the sewage draining exit so as to prevent the occurrence of bilharziasis; and E, excavating sludge above the water surface in winter, and taking the sludge as a fertilizer for the seedling raising of aquatic vegetables and a culture medium for water planting. The method disclosed by the invention can be used for de-eutrophicating a sewage draining exit, which can not be manually controlled, of a residential community and carrying out ecological restoration.
Description
Technical field
The present invention relates to water ecology and repair field, be specifically related to the method that one way of life community sewage draining exit goes eutrophication.
Background technology
The method that the method for the current integrated control eutrophication of natural water of China has active sludge treatment, bio-oxidation pond, oxidation ditch, artificial swamp, biological filter, reed field, pasture and water pond etc. to dispose of sewage.Its administering method is all first allow dirt and sewage enter natural water body, and then administers.This patent just controls dirt from source and sewage enters natural water body, takes resident family, entire building room and biotope sewage draining exit to collect respectively after ight soil (urine, mud, sewage) is concentrated to be convenient to resource utilization.About this respect both at home and abroad except applicant publishes thesis, also do not find that there is the report of document or patented technology.
Summary of the invention
Object of the present invention is just to overcome prior art Problems existing, provides one way of life community sewage draining exit to go the method for eutrophication, can not go eutrophication and carry out restoration of the ecosystem by manually operated sewage mouth one.
Object of the present invention realizes by following technical proposal:
One way of life community sewage draining exit goes the method for eutrophication, comprises the steps:
Step 1, select without the pollution of huge sum of money element, no radioactivity pollute, biotope sewage draining exit without chemical pollution, according to biotope population number determine the cultivated area of waterplant;
Step 2, shallow water area plantation emergent, make water body obtain restoration of the ecosystem, plant wild rice stem, lotus rhizome, calamus, Scirpus tabernaemontani March, once plant upper after, all oneself can germinate annual spring later, come into season and only gather in the crops;
Step 3, the degree of depth be more than 0.2 meter water body utilize floating bed plant aquatic vegetable;
Step 4, in biotope, sewage draining exit puts aquatic animal in a suitable place to breed, and prevention and cure of schistosomiasis occurs;
Step 5, winter take the mud being exposed to the water surface, as the fertilizer of aquatic vegetable nursery and the substratum of water planting aquatic animal.
In step 1 as above, the cultivated area of waterplant plants one mu of waterplant for each thousand people.
Step 3 as above comprises the following steps:
Step 3.1, plant preculture: plant germination; The same with land vegetables, select the vegetables of Various Seasonal plantation to begin sowing in good time, in time growing to 4cm-6cm and be long, move on to the preculture 8-10 days carrying out water planting environment in the substratum with different concns;
Manufacturing of step 3.2, floating bed:
Each floating bed is made up of 5 montants, 2 braces, 2 cross bars, with iron wire, bamboo bar is twisted "+" knot and fixes, can prevent iron wire from loosening;
After framework completes, start cutting mesh sheet, net laying opened and be overlying on framework, flexible owing to netting, carry after the good size of comparison again and cut, large stretch of net is first cut into little strip net by the width according to floating bed, then is cut into little mesh sheet according to the length of floating bed;
Twine net time-division thickness two kinds of nets, above floating bed, knit one deck coarse net, make waterplant can erect in floating bed; Be woven with one deck fine-structure mesh below floating bed, prevent waterplant from falling into the water, first from below shelf convex part, knit fine-structure mesh, after knit coarse net above floating bed, in the process of knitmesh, when selecting the shuttle or horse bag pin that weave a fish net, when knitting fine-structure mesh, a fast knot to be made a call to every 3 to 4 meshes; A fast knot is made a call to after often knitting two pins when knitting coarse net; To not loosening;
Step 3.3, plant transplantation: at the cloudy day, uproop the plant grown in soil or vegetable aquaculture, take biotope sewage draining exit in the lump to together with floating bed, and roots of plants and part stem are inserted in net, part stem and leaf must surface;
Step 3.4, results aquatic vegetable: when vegetables grow fine, can listing be gathered in the crops.
Nitrogen phosphorus after planting aquatic plants in biotope sewage draining exit water sample measures and hydrobiont kind compares.
(1) mensuration of biotope sewage draining exit water sample total nitrogen
As shown in Figure 1, the matter of sanitary sewage total nitrogen is (0.820+0.035mg/L), the matter of calamus water sample total nitrogen is (0.627+0.026mg/L), the matter of wild rice stem water sample total nitrogen is (0.689+0.029mg/L), the matter of harmony dish water sample total nitrogen is (0.701+0.030mg/L), the matter of Chinese celery water sample total nitrogen is (0.694+0.029mg/L), the matter of reed water sample total nitrogen is (0.649+0.027mg/L), the matter of Scirpus tabernaemontani water sample total nitrogen is (0.728+0.030mg/L).Waterplant water sample compared with sanitary sewage water sample total values of nitrogen might all significance reduce (P<0.05); Calamus water sample total values of nitrogen might compared with wild rice stem, harmony dish, Chinese celery, reed, Scirpus tabernaemontani water sample has significant difference, with the matter there was no significant difference (P<0.05) of reed water sample total nitrogen; Wild rice stem, harmony dish, Chinese celery, reed, Scirpus tabernaemontani water sample these several groups compare total values of nitrogen might there was no significant difference, but the total values of nitrogen might of reed water sample and the total values of nitrogen might there was no significant difference of Scirpus tabernaemontani water sample.From the results of view, the sequence of water sample total values of nitrogen might height is sanitary sewage > Scirpus tabernaemontani > Chinese celery > harmony dish > wild rice stem > reed > calamus.
(2) the total phosphorus yield of biotope sewage draining exit water sample
As shown in Figure 2, the matter of sanitary sewage total phosphorus is (0.525+0.021mg/L), the matter of calamus water sample total nitrogen is (0.467+0.019mg/L), the matter of wild rice stem water sample total nitrogen is (0.462+0.019mg/L), the matter of harmony dish water sample total nitrogen is (0.446+0.019mg/L), the matter of Chinese celery water sample total nitrogen is (0.469+0.019mg/L), the matter of reed water sample total nitrogen is (0.472+0.019mg/L), the matter of Scirpus tabernaemontani water sample total nitrogen is (0.444+0.019mg/L).Waterplant water sample compared with sanitary sewage water sample total values of nitrogen might all significance reduce (P<0.05); Waterplant group water sample is compared all without marked difference (P > 0.05).From the results of view, the sequence of water sample total phosphorus value height is sanitary sewage > reed > Chinese celery > calamus > wild rice stem > harmony dish > Scirpus tabernaemontani.
(3) comparison of biotope sewage draining exit hydrobiont kind before and after water planting waterplant
As can be seen from Table 1, after planting these waterplant, these waterplant can normal growth, and has occurred originally not having kind, as duckweed, chironomus larvas, tubificid, money leech, aquatic bird, fish, frog's egg etc.And the number ratio of Moina increased in the past to some extent, the quantity of Microcystis aeruginosa reduced than before to some extent.
Hydrobiont kind Catalogue before and after the sewage draining exit planting aquatic plants of table 1 biotope
After planting aquatic plants, these hydrobionts of increase are natural feeds of water fish shrimp, and the fishes and shrimps in lake are lived to herein.After planting aquatic plants, the water ecological setting of biotope sewage draining exit has started to have repaired.
Step 4 as above comprises the following steps:
In biotope, sewage draining exit puts aquatic animal in a suitable place to breed, and prevention and cure of schistosomiasis occurs.
In order to better repair the ecotope of biotope sewage draining exit, multi output n p k nutrition material from water, so when biotope sewage draining exit planting aquatic plants, as long as after having put the animals such as loach, swamp eel, tortoise and shrimps, later every year will from numerous autotrophy.Generally put loach 5kg/ mu, swamp eel 5kg/ mu, shrimp 5kg/ mu, tortoise 20/mu, allow these animals accrue.
Can these hydrocoles survive at biotope sewage draining exit environment? because the breathing of loach is intestinal respiration, tortoise is pulmonary respiration, so the number of water oxygen, the generation of the quantity of Microcystis aeruginosa and loach in water, swamp eel and tortoise is without much relations.As long as no one, loach, swamp eel and tortoise just can go up floating bed, hide in vegetables.Loach with aquatic plant, algae, zooplankton for food; Tortoise with zooplankton, Limnodrilus hoffmeisteri, loach for food.Shrimps mainly with waterplant, zooplankton for food, zooplankton is supplement food.Swamp eel breathes with throat, be then convenient to breathe at any time in the root life of emergent.Several animals more than put in a suitable place to breed can natural propagation at nature, as long as so single step of releasing kind, under normal circumstances, these fishes and shrimps all can accrue, and have every year.
Present China divert water from the south to the north project is basically completed, and Yangtze River Water introduces the ground such as Henan, Beijing from Hubei Danjiangkou Reservoir.Shahu Lake and the East Lake in existing Wuchang, Wuhan are connected by Chinese river facies, and have and close report, Wuhan will be drawn Yangtze River Water and is communicated with to get up to purify water by several Big Lakes.As this message comes true, this just means that lakeside just likely occurs oncomelania from now on.The fishes and shrimps put of this patent just in time can with the oncomelania in water for food, and the oncomelania of the moist local numerous life in land just must be killed with medicine, and usable oils tea seed cake is killed.
Step 5 as above comprises the following steps:
Winter collects ight soil; Taking the above mud of the water surface is prevent and treat eutrophication requisite measure occurs.
Only spring, summer, autumn is applicable at life pollution outlet planting plants purifying eutrophic.Though because the dead but poor growth of plant in the winter time, so human excrement must be collected in the winter time, collect sanitary sewage, collect mud, after concentrating, be convenient to resource utilization.Only in this way the eutrophication in lake just can obtain basic containment.
The method of removing water eutrophication of the present invention, can go eutrophication and restoration of the ecosystem to a biotope sewage draining exit, effectively can suppress the outburst of blue-green algae aquation, and keeps biotope sewage draining exit water conditioning.Aquatic vegetable and delicious aquatic animal can be obtained throughout the year.
The present invention compared with prior art, has the following advantages:
1, shallow water plantation emergent: the plantation of biotope sewage draining exit shallow water area wild rice stem, lotus rhizome, calamus, Scirpus tabernaemontani etc., once plant above, all oneself can germinate annual spring later, come into season and only gather in the crops.
2, floating bed plantation aquatic vegetable: more than 0.2 meter water body utilize floating bed plant aquatic vegetable, according to land what dish of kind in what season equally can sow, nursery, transplanting, results.
Restoration of the ecosystem water surrounding: although the nitrogen phosphorus that aquatic vegetable can directly absorb in water body purifies water quality, but this is a part of nutritive substance very little in eutrophication water, it is not the receptivity only relying on plant itself that hydroponic plant repairs eutrophication water, but provides a good environment for the nutritive substance in removal water body.After water plant planting, in vicinity of plants water, once observing frog ovum and a large amount of red worm, can illustrate that restoration of the ecosystem served certain effect to a certain extent.
After biotope sewage draining exit plantation aquatic vegetable, such biotope sewage draining exit is not just only have foul smell and sewage, but has the fragrance of calamus and lotus in air, the cry of aquatic bird; The water surface has free of contamination green vegetables; Have the fishes and shrimps accrued in water, this is really brightness of flowers and birdsongs, fine water ecological setting.
3, biotope sewage draining exit is put fishes and shrimps and is accrued, can the generation of prevention and cure of schistosomiasis
The plantation of biotope sewage draining exit shallow water wild rice stem, lotus root etc., more than 0.2 meter, water body utilizes floating bed to plant aquatic vegetable, and after improving sewage draining exit water surrounding, the animals such as the fish in lake, shrimp will swim across to breed automatically.But in order to ensure that fishes and shrimps have certain population quantity, still the animals such as loach, swamp eel, tortoise and shrimps to be introduced a fine variety.Once introduce a fine variety, all can accrue every year later.Its precursor wants planting aquatic plants at biotope sewage draining exit, forbids at ordinary times to flutter shrimp of fishing with a net.
4, ight soil is collected winter; Taking the above mud of the water surface is prevent and treat eutrophication requisite measure occurs.
Only spring, summer, autumn is applicable at biotope sewage draining exit planting plants purifying eutrophic.Though because the dead but poor growth of plant in the winter time, so must collect human excrement in the winter time, collect sanitary sewage and mud for the ecological agriculture, or to carry out ecospecies cultivation be a kind of important method of preventing and treating lake eutrophication.Only in this way the eutrophication in lake just can obtain basic containment.
Accompanying drawing explanation
The difference of total nitrogen in the different waterplant water sample of Fig. 1.
The difference of total phosphorus in the different waterplant water sample of Fig. 2.
Fig. 3 one way of life community sewage draining exit removes the schema of the method for eutrophication.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Embodiment 1(2011 Hubei)
One way of life community sewage draining exit goes the method for eutrophication, the steps include:
1, at biotope sewage draining exit, trees are utilized to block one fishnet from the water surface 30 centimetres to bottom.This road fishnet both can prevent and treat the waterplant of purifying waste water not by wind in sanitary sewage ditch, solid dirt can be blocked again and enter South Lake, and can regularly pick up mud and carry out hydrobiont cultivation with dragging for son or make fertilizer, for the cultivation of paddy field ecospecies provides fresh bait, the liquid discharges of the mankind is then by biotope sewage draining exit water planting aquatic plant purification sewage.This is that mankind's solid feces is collected in whole biotope, turns waste into wealth, controls the method for Eutrophication in Lake Nanhu.
2, put and plant Herba Eichhorniae between biotope sewage draining exit and block, allow its self-sow, the sanitary sewage that absorbed nitrogen phosphorus concentration is high, regularly pick up and transport to base and feed fish, feed goose, feed duck, cultivate earthworm.Within 2011, because this biotope sewage draining exit does not also have more than 0.2 meter shoaling water, adding aquatic vegetable is kind on plastics vacuolar membrane, and Herba Eichhorniae inherently floating vegetation, so put, to plant Herba Eichhorniae be the equal of just shoaling water plantation emergent.Only as many in Herba Eichhorniae regularly to pick up or need all pick up for cultivating earthworm Huo be Green fertile etc. to autumn.From water, pick up Herba Eichhorniae just from water, pick up too much nitrogen phosphorus in fact.
3, on plastics vacuolar membrane, summer plants in Herba Commelinae Bengalensis and water and inoculates Herba Eichhorniae, winter planting Plantula Brassicae chinensis, Chinese celery, Nasturtium officinale.On plastics vacuolar membrane spring, summer, that autumn plants aquatic vegetable is all right, but it is too large to have arrived blind lake apoplexy, and in water, wave is also large, and plastics vacuolar membrane will blow to together with vegetables.Sometimes also can blow to loke shore limit, be unfavorable for the growth of aquatic vegetable.
4, plant preculture: 1) plant germination; The same with land vegetables, sow the seed in spring Herba Commelinae Bengalensis, the Plantula Brassicae chinensis that sows in autumn, Nasturtium officinale; In time growing to 4cm-6cm and be long, move on to the preculture 8-10 days carrying out water planting environment in the liquid nutrient medium with different concns.
5, plant transplantation; At the cloudy day, the plant grown in soil or vegetable aquaculture are uprooped, takes sewage draining exit laboratory, biotope in the lump to together with floating bed, plant is inserted in the cavity on plastics vacuolar membrane.
6, plant harvest: after 20 days when Herba Commelinae Bengalensis grows fine, namely gather in the crops listing.As long as maturation both can be gathered in the crops later.Herba Commelinae Bengalensis just all takes out to beat frost to winter before, cultivates earthworm after transporting to base in cement pit.
7, autumn plant transplantation: aquatic vegetable than land vegetables at least want Zao two weeks will sow, allow vegetables grow up well, early transplanting kind in water because winter is waterborne cold.Wind is large again.
8, Second Year 2-3 in the spring month, both can gather in the crops at any time as long as vegetable has been grown up.
2011 put and plant Herba Eichhorniae between biotope sewage draining exit and block, and regularly with dragging for, son picks up mud, the Herba Eichhorniae that picks up carries out hydrobiont cultivation or makees fertilizer etc.; In good time results vegetable.After plastic blister film water training aquatic vegetable, just there is many birds in the overhead of this biotope sewage draining exit, and people is once near just seeing or hearing the sound having animal to move about or jump in water, and this illustrates that existing animal is to this life.This is that whole biotope sewage draining exit collects mankind's solid feces, turns waste into wealth, controls the method for Eutrophication in Lake Nanhu.
Embodiment 2(2012 Hubei)
1, plant preculture: 1) plant germination; The same with land vegetables, sow the seed in spring Herba Commelinae Bengalensis, the Plantula Brassicae chinensis that sows in autumn, Nasturtium officinale; In time growing to 4cm-6cm and be long, move on to the preculture 8-10 days carrying out water planting environment in the substratum with different concns.
2, floating bed is manufactured:
(1) floating bed is manufactured: by being applicable to length cutting bamboo bar, each floating bed is made up of 3 montants, 2 braces, 2 cross bars.Bamboo bar being fixed as schemed, in the process of fixing two bamboo bars, twisting into "+" knot with iron wire, prevent iron wire from loosening.
(2) cutting of mesh sheet: after framework completes, starts cutting mesh sheet.Net laying being opened is overlying on framework, flexible owing to netting, and carries and cut after the good size of comparison.Large stretch of net is first cut into little strip net by the width according to floating bed, then is cut into little mesh sheet according to the length of floating bed.
(3) net time-division thickness two kinds of nets are twined.Knit one deck coarse net above floating bed, make waterplant can erect in floating bed; Be woven with one deck fine-structure mesh below floating bed, prevent waterplant from falling into the water.First from below shelf convex part, knit fine-structure mesh, after knit coarse net above floating bed.In the process of knitmesh, when selecting the shuttle or horse bag pin that weave a fish net, when knitting fine-structure mesh, a fast knot to be made a call to every 3 to 4 meshes; A fast knot is made a call to after often knitting two pins when knitting coarse net; To not loosening.
3, plant transplantation; At the cloudy day, the plant grown in soil or vegetable aquaculture are uprooped, take sewage mouth laboratory in the lump to together with floating bed, roots of plants and part stem are inserted in net, part stem and leaf must surface.
After water plant planting, in vicinity of plants water, once observing frog ovum and a large amount of red worm, can illustrate that restoration of the ecosystem served certain effect to a certain extent.At ordinary times, as long as when people one is near water environment protection base, just see that aquatic bird is to flying in the air, can see and hear has animal to jump in water the floating bed of plant.Sooner or later be also shown in people nearby off line, the lower moat of water body flutter fishes and shrimps.
4, plant harvest: when vegetables grow fine, can gather in the crops listing in good time.
5, the mud being exposed to the water surface is taken winter, as the fertilizer of aquatic vegetable nursery and the substratum of water planting aquatic animal.The method of removing water eutrophication of the present invention, can go eutrophication and restoration of the ecosystem to a biotope sewage draining exit, effectively can suppress the outburst of blue-green algae aquation, and keeps biotope sewage draining exit water conditioning.
Water planting waterplant in 2012 is because of the report of the attention and news media that obtain leaders; particularly obtain attention and the care of Hongshan District, Wuhan City water sector; notice board has been hung up in water environment protection base, South Lake; it is said and spend hundreds of thousands of to build an observation desk; freely movable for visitor, also provide a space for activities for we student does experiment.
Embodiment 3(2013 Hubei)
1, one way of life community sewage draining exit goes the method for eutrophication, comprises the steps to comprise:
(1) shallow water area plantation emergent; Within 2013, because more than 0.2 meter shoal has been seen at this sewage draining exit place, biotope, so planted emergent, one has been the living environment that can increase water fish shrimp, and fishes and shrimps can be ingested, perch, lay eggs in the place of emergent growth; Two is the workloads of the minimizing anniversary fishing for waterplant from water; Three is abilities that emergent has higher middle nitrogen phosphorus of purifying waste water.From result of study Fig. 1, Fig. 2, the sequence of water sample total values of nitrogen might height is sanitary sewage > Scirpus tabernaemontani > Chinese celery > harmony dish > wild rice stem > reed > calamus; The sequence of water sample total phosphorus value height is sanitary sewage > reed > Chinese celery > calamus > wild rice stem > harmony dish > Scirpus tabernaemontani.
(2) more than 0.2 meter, water body utilizes floating bed to plant aquatic vegetable;
(3) plant preculture: 1) plant germination; The same with land vegetables, select the vegetables of Various Seasonal plantation to begin sowing in good time, in time growing to 4cm-6cm and be long, move on to the preculture 8-10 days carrying out water planting environment in the substratum with different concns.
2, floating bed is manufactured:
(1) the manufacturing of floating bed: by being applicable to length cutting bamboo bar, each floating bed is made up of 5 montants, 2 braces, 2 cross bars.Bamboo bar being fixed as schemed, in the process of fixing two bamboo bars, twisting into "+" knot with iron wire, prevent iron wire from loosening.
(2) cutting of mesh sheet: after framework completes, starts cutting mesh sheet.Net laying being opened is overlying on framework, flexible owing to netting, and carries and cut after the good size of comparison.Large stretch of net is first cut into little strip net by the width according to floating bed, then is cut into little mesh sheet according to the length of floating bed.
(3) net time-division thickness two kinds of nets are twined.Knit one deck coarse net above floating bed, make waterplant can erect in floating bed; Be woven with one deck fine-structure mesh below floating bed, prevent waterplant from falling into the water.First from below shelf convex part, knit fine-structure mesh, after knit coarse net in floating bed.In the process of knitmesh, when selecting the shuttle or horse bag pin that weave a fish net, when knitting fine-structure mesh, a fast knot to be made a call to every 3 to 4 meshes; A fast knot is made a call to after often knitting two pins when knitting coarse net; To not loosening.
(4) plant transplantation; At the cloudy day, the plant grown in soil or vegetable aquaculture are uprooped, take sewage mouth laboratory in the lump to together with floating bed, roots of plants and part stem are inserted in net, part stem and leaf must surface.
3, in water body, put loach, swamp eel, tortoise and shrimps in a suitable place to breed, allow it from numerous autotrophy: when aquatic vegetable grows fine, put loach 5kg/ mu in a suitable place to breed, swamp eel 5kg/ mu, Procambius clarkii 5kg/ mu, tortoise 20/mu, allow these animals accrue.Because after the sewage draining exit planting aquatic plants of biotope, the environment in water is improved, just had last year people nearby water body flutter fishes and shrimps.In order to better repair the ecotope of biotope sewage draining exit, so put loach, swamp eel, tortoise and Procambius clarkii in a suitable place to breed at the sewage draining exit of water planting waterplant this year, it is allowed to accrue.
4, plant harvest: when vegetables grow fine, can gather in the crops listing in good time.
5, the mud being exposed to the water surface is taken winter, as the fertilizer of aquatic vegetable nursery and the substratum of water planting aquatic animal.The method of removing water eutrophication of the present invention, can realize going eutrophication and restoration of the ecosystem to a biotope sewage draining exit, effectively can suppress the outburst of blue-green algae aquation, and keep biotope sewage draining exit water conditioning.Only have each biotope sewage draining exit to utilize aquatic plant purification eutrophication water quality, lake eutrophication just can be controlled.
Although the nitrogen phosphorus that aquatic vegetable can directly absorb in water body purifies water quality, but this is a part of nutritive substance very little in eutrophication water, it is not rely on the receptivity of plant itself that hydroponic plant repairs eutrophication water, but provides a good environment for the nutritive substance in removal water body.After water plant planting, in vicinity of plants water, once observing the hydrobiont such as frog ovum and a large amount of red worm, Limnodrilus hoffmeisteri, chironomus larvas, can illustrate that restoration of the ecosystem served certain effect to a certain extent.These hydrobionts are all emerging hydrobionts after plantation emergent and floating bed plant, and these hydrobionts are all the fresh and alive feeds of fishes and shrimps.N p k nutrition composition in sewage, from waterplant, the accumulation of one-level level, finally all becomes the edible aquatic animal of the mankind and aquatic vegetable.
Embodiment 4
One way of life community sewage draining exit goes the method for eutrophication, comprises the steps:
Step 1, select without the pollution of huge sum of money element, no radioactivity pollute, biotope sewage draining exit without chemical pollution, according to biotope population number determine the cultivated area of waterplant;
Step 2, shallow water area plantation emergent, make water body obtain restoration of the ecosystem, plant wild rice stem, lotus rhizome, calamus, Scirpus tabernaemontani March, once plant upper after, all oneself can germinate annual spring later, come into season and only gather in the crops;
Step 3, the degree of depth be more than 0.2 meter water body utilize floating bed plant aquatic vegetable;
Step 4, in biotope, sewage draining exit puts aquatic animal in a suitable place to breed, and prevention and cure of schistosomiasis occurs;
5, the mud being exposed to the water surface is taken winter, as the fertilizer of aquatic vegetable nursery and the substratum of water planting aquatic animal.In step 1 as above, the cultivated area of waterplant plants one mu of waterplant for each thousand people.
Step 3 as above comprises the following steps:
Step 3.1, plant preculture: plant germination; The same with land vegetables, select the vegetables of Various Seasonal plantation to begin sowing in good time, in time growing to 4cm-6cm and be long, move on to the preculture 8-10 days carrying out water planting environment in the substratum with different concns;
Manufacturing of step 3.2, floating bed:
Each floating bed is made up of 5 montants, 2 braces, 2 cross bars, with iron wire, bamboo bar is twisted "+" knot and fixes, can prevent iron wire from loosening;
After framework completes, start cutting mesh sheet, net laying opened and be overlying on framework, flexible owing to netting, carry after the good size of comparison again and cut, large stretch of net is first cut into little strip net by the width according to floating bed, then is cut into little mesh sheet according to the length of floating bed;
Twine net time-division thickness two kinds of nets, above floating bed, knit one deck coarse net, make waterplant can erect in floating bed; Be woven with one deck fine-structure mesh below floating bed, prevent waterplant from falling into the water, first from below shelf convex part, knit fine-structure mesh, after knit coarse net above floating bed, in the process of knitmesh, when selecting the shuttle or horse bag pin that weave a fish net, when knitting fine-structure mesh, a fast knot to be made a call to every 3 to 4 meshes; A fast knot is made a call to after often knitting two pins when knitting coarse net; To not loosening;
Step 3.3, plant transplantation: at the cloudy day, uproop the plant grown in soil or vegetable aquaculture, take biotope sewage draining exit in the lump to together with floating bed, and roots of plants and part stem are inserted in net, part stem and leaf must surface;
Step 3.4, results aquatic vegetable: when vegetables grow fine, can listing be gathered in the crops.
Step 4 as above comprises the following steps, and disposablely puts into loach 5kg/ mu, swamp eel 5kg/ mu, shrimp 5kg/ mu, tortoise 20/mu.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (1)
1. one way of life community sewage draining exit goes the method for eutrophication, it is characterized in that, comprises the steps:
Step 1, select without the pollution of huge sum of money element, no radioactivity pollute, biotope sewage draining exit without chemical pollution, according to biotope population number determine the cultivated area of waterplant;
Step 2, shallow water area plantation emergent, make water body obtain restoration of the ecosystem, plant wild rice stem, lotus rhizome, calamus, Scirpus tabernaemontani March, once plant upper after, all oneself can germinate annual spring later, come into season and only gather in the crops;
Step 3, the degree of depth be more than 0.2 meter water body utilize floating bed plant aquatic vegetable;
Step 4, in biotope, sewage draining exit puts aquatic animal in a suitable place to breed, and prevention and cure of schistosomiasis occurs;
Step 5, winter take the mud being exposed to the water surface, as the fertilizer of aquatic vegetable nursery and the substratum of water planting aquatic animal;
In described step 1, the cultivated area of waterplant plants one mu of waterplant for each thousand people;
Described step 3 comprises the following steps:
Step 3.1, plant preculture: plant germination; The same with land vegetables, select the vegetables of Various Seasonal plantation to begin sowing in good time, in time growing to 4cm-6cm and be long, move on to the preculture 8-10 days carrying out water planting environment in the substratum with different concns;
Manufacturing of step 3.2, floating bed:
Each floating bed is made up of 5 montants, 2 braces, 2 cross bars, with iron wire, bamboo bar is twisted "+" knot and fixes, can prevent iron wire from loosening;
After framework completes, start cutting mesh sheet, net laying opened and be overlying on framework, flexible owing to netting, carry after the good size of comparison again and cut, large stretch of net is first cut into little strip net by the width according to floating bed, then is cut into little mesh sheet according to the length of floating bed;
Twine net time-division thickness two kinds of nets, above floating bed, knit one deck coarse net, make waterplant can erect in floating bed; Be woven with one deck fine-structure mesh below floating bed, prevent waterplant from falling into the water, first from below shelf convex part, knit fine-structure mesh, after knit coarse net above floating bed, in the process of knitmesh, when selecting the shuttle or horse bag pin that weave a fish net, when knitting fine-structure mesh, a fast knot to be made a call to every 3 to 4 meshes; A fast knot is made a call to after often knitting two pins when knitting coarse net; Until do not loosen;
Step 3.3, plant transplantation: at the cloudy day, uproop the plant grown in soil or vegetable aquaculture, take biotope sewage draining exit in the lump to together with floating bed, and roots of plants and part stem are inserted in net, part stem and leaf must surface;
Step 3.4, results aquatic vegetable: when vegetables grow fine, can listing be gathered in the crops;
Described step 4 comprises the following steps, and disposablely puts into loach 5kg/ mu, swamp eel 5kg/ mu, shrimp 5kg/ mu, tortoise 20/mu.
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| CN108217962B (en) * | 2018-02-08 | 2020-10-09 | 华中科技大学 | Floating type aquatic ecological industrial chain urban water body maintenance method |
| CN109879441A (en) * | 2019-03-23 | 2019-06-14 | 广东华碧环保股份有限公司 | The sewage disposal system of landscape lake sewage draining exit |
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