CN102303923A - Bionic composite filler, water body purification bionic system, and method for purifying and removing algae - Google Patents

Bionic composite filler, water body purification bionic system, and method for purifying and removing algae Download PDF

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CN102303923A
CN102303923A CN201110240855A CN201110240855A CN102303923A CN 102303923 A CN102303923 A CN 102303923A CN 201110240855 A CN201110240855 A CN 201110240855A CN 201110240855 A CN201110240855 A CN 201110240855A CN 102303923 A CN102303923 A CN 102303923A
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China
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water
framework
algae
aeration head
compounded mix
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CN201110240855A
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Chinese (zh)
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CN102303923B (en
Inventor
蒋然
黄少斌
张心凤
韦宗敏
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珠江水利委员会珠江水利科学研究院
华南理工大学
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Priority to CN2011102408558A priority Critical patent/CN102303923B/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

The invention discloses a bionic composite filler, a water body purification bionic system and a method for purifying and removing algae from the eutrophicated water body. The water body purification bionic system provided by the present invention comprises a rectangular frame or a cubic frame, a bionic composite filler, aeration heads, aquatic plants, zooplanktons and filter-feeding fishes. The bottom surface of the frame is provided with the bionic composite filler. Two layers of the aeration heads are fixed on the frame, wherein the upper layer aeration head is arranged on the position which is above the bionic composite filler, and is 50-80 cm from the bionic composite filler, the lower layer aeration head is arranged on the same plane as the bionic composite filler. The aquatic plants are planted on the upper surface of the frame. With the method for purifying and removing the algae from the eutrophicated water body based on the system, a significant and rapid treatment effect is provided; with applying the technology provided by the present invention on 10-30% water area of the water body requiring treatment, the diversity of the aquatic ecosystem can be restored in 1-3 months; the biomass of the zooplanktons can be increased by more than 50%; the operation cost of the method is low, and the significant economic output is provided during the operating process of the system.

Description

Bionical compounded mix and water body purification bionic system and purification remove the method for algae
Technical field
The present invention relates to algal bloom Pollution abatement field; Be specifically related to surface water body (lake, reservoir and river) algal bloom treatment technology, particularly a kind of bionical compounded mix, a kind of water body purification bionic system reach the method for purifying of the hypertrophic water system being removed algae.
Background technology
The eutrophication of various water bodys (lake, reservoir, city river etc.) is that regional population, economy and social development cause behind certain phase; Because the pollution of area source and the endogenous pollution that are difficult to eradicate; Even under the situation that sewage discharge is effectively controlled, the pollution of river and eutrophication problem thereof still are difficult to solve.The large-scale outbreak that important sign is exactly an algal bloom that body eutrophication is on the rise, control body eutrophication and algal bloom outburst are the targets of water body purification.
The method of administering body eutrophication at present has drainage dirt removal, watercourse aeration, bed mud dredging, chemical flocculation to handle and the biological-ecological recovery technique.The water body algae removal technology is removed algae from the chemicals logos and is developed into bio operon, rises to the ecological recovery technology near the natural water self-cleaning gradually.The biological-ecological recovery technique is mainly utilized coenosis such as the microorganism that constitutes the ecosystem in the water body, swim animals and plants and waterplant etc. to absorb and is transformed excessive nitrogen and phosphorus nutrition salt in the water body.To flow to that unbalance, too much nitrogen phosphorus flows to the blue-green algae be main plant plankton to nitrogen phosphorus in the lake of algal bloom.At the good water ecosystem of circulation complicated food chain is arranged, the flow direction of nitrogen phosphorus is following: microorganism, waterplant, algae (parallel relation) → large-scale or small-sized zooplankton → filter-feeding fish → ichthyophagy property fish.Main tool at classical bio operon is a zooplankton, and macrozooplankton not only has stronger algae filter food rate, and wider algae predation scope is also arranged simultaneously.
Summary of the invention
Primary and foremost purpose of the present invention is to provide a kind of bionical compounded mix, and this bionical compounded mix is biodegradable filler, can be zooplankton sanctuary is provided, and also can the habitat be provided for zoobenthos simultaneously.
Another object of the present invention is to provide the preparation method of above-mentioned bionical compounded mix.
A further object of the present invention is to provide a kind of water body purification bionic system, and this system is in the eutrophication water scope, utilizes common hydrobiont species in native country (zooplankton, zoobenthos, fish etc.) and above-mentioned bionical compounded mix to make up and forms; This system can provide waterplant and fish growth environment at longitudinal space, through nitrogen phosphorus substance in the human consumers' at different levels growth consumption water body, reduces even eliminate the generation of wawter bloom.
Another purpose of the present invention is to provide above-mentioned a kind of method of purifying of the hypertrophic water system being removed algae.
The object of the invention is realized through following technical proposals:
A kind of bionical compounded mix, its center are hard multiaspect hollow balls, and there is hole at the spheroid edge, and urethane strip soft-filler connects hard multiaspect hollow ball through hole;
Described hard multiaspect hollow ball specific surface area is about 200-300m 2/ m 3, similar rock wall can be native country zoobenthos (like the spiral shell bivalves) habitat is provided, and there is micropore on the surface, and microbial film is prone to apposition growth.
Mostly zoobenthos is the rimary consumer, is food with organic debris and algae etc., simultaneously is again the food of aquatic economic animal such as fish.
Described hard multiaspect hollow ball is prepared by following steps:
(1) under the situation that catalytic component based on vanadium exists, get polyester, N-methylmorpholine-N-oxide compound mixes with water, the mass ratio of three kinds of reactants is 90: (2-5): (4-8), 60-80 ℃ of following stirring reaction 3h obtains hydroxylated polyester;
(2) under the situation that initiator cerium ion and dicumyl peroxide exist, get hydroxylated polyester and mixes with polyethylene polyamine class monomer, the mass ratio of two kinds of reactants is (8-16): 1, react 5h 90-120 ℃ time, and obtain the hydroxylated polyester after the modification;
(3) with the hydroxylated polyester after the modification, starch, poly(lactic acid) by mass ratio (10-8): mix at 4: 1; 190-230 ℃ is reacted 7-10h down; Obtain the different bio-degradable plastics of physical strength; Through plastic working program extrusion molding commonly used, obtain having the hard multiaspect hollow ball of edge hole again;
Step (2) preferred tetraethylene pentamine of described polyethylene polyamine class monomer or triethylene diamine.
Described urethane strip soft-filler is prepared by following steps:
Step (1)-(2) are with hard multiaspect hollow ball preparing method's step (1)-(2);
(3) hydroxylated polyester after the modification, starch, poly(lactic acid) are pressed (8-5): (3-2): 1 mass ratio mixes; And adding accounts for the whipping agent of three's total mass 0.5-1%; 150-170 ℃ is reacted 2-8h down; Obtain the polyester soft-filler; Through extrusion molding of plastic working program and cutting commonly used, obtain urethane strip soft-filler again.
Above-mentioned bionical compounded mix is to be connected with urethane strip soft-filler and to be obtained by hard multiaspect hollow ball.
Urethane strip soft-filler proportion is about 1, and porosity is 80-150%, can be suspended in the water, under flow action, as pasture and water, shakes, and can be zooplankton sanctuary is provided, and reduces the predation of fish to them.This filler has about 20 years life-span under water body environment, and the ability complete biodegradable, does not cause second environmental pollution.
Cladocera Daphnia magna class sfgd. mainly contains hypoxemia, the low light level, pasture and water or other and keeps away and protect institute etc. in the zooplankton.
A kind of water body purification bionic system comprises a rectangular parallelepiped or square framework, bionical compounded mix, aeration head, waterplant, zooplankton and filter-feeding fish; Above-mentioned bionical compounded mix is installed in the bottom surface of framework; The scalable adjusting of length around the framework; In order to the bionical compounded mix of regulating the framework bottom surface height apart from the water surface; In the different weather of intensity of illumination; The light intensity of the bionical compounded mix of scalable position is to reach the purpose of protection zooplankton; Aerating system adopts micro porous aeration head; Lay two-layer micro porous aeration head up and down altogether; The upper strata micro porous aeration head is laid in 50-80cm place, top, bionical compounded mix center; Lower floor's micro porous aeration head is laid on the isoplanar of bionical compounded mix; Two-layer aeration head is through pvc pipe and frame fixation; Adopt two aerators to charge into air respectively, the dissolved oxygen of different concns is provided; The upper surface of framework is divided into some rectangles with hollow plastic pipe, in hollow plastic pipe with the fixing plantation dish of rope, planting aquatic plants; The composition of water body purification bionic system as depicted in figs. 1 and 2;
Described waterplant is the eel grass and/or the fire hose;
Described rectangular parallelepiped or square framework are that material is processed with the engineering plastics pipe.
The above-mentioned bionical ecosystem because the growth place of zooplankton, waterplant and fish is provided, for the too much water body of algae, can start purification fast, forms the eucyclic water body purification system of nutritive salt.
A kind of to the method for purifying of the hypertrophic water system except that algae, may further comprise the steps:
(1) in pending eutrophication water, mark a scope, the water surface area of this scope is the 10-30% of pending eutrophication water water surface area; Fence up (zooplankton of throwing in after avoiding escapes from this scope) enclosing grid with water proof around this scope, put into a rectangular parallelepiped or square framework, above-mentioned bionical compounded mix is installed in the bottom surface of framework; The scalable adjusting of length around the framework, in order to the bionical compounded mix of regulating the framework bottom surface height apart from the water surface, in the different weather of intensity of illumination, the light intensity of the bionical compounded mix of scalable position is to reach the purpose of protection zooplankton; Aerating system adopts micro porous aeration head; Lay two-layer micro porous aeration head up and down altogether; The upper strata micro porous aeration head is laid in 50-80cm place, top, bionical compounded mix hard center; Lower floor's micro porous aeration head is laid on the isoplanar of bionical compounded mix; Two-layer aeration head is through pvc pipe and frame fixation; Adopt two aerators to charge into air respectively, the dissolved oxygen of different concns is provided; The upper surface of framework is divided into some rectangles with hollow plastic pipe, and with the fixing plantation dish of rope, plantation eel grass, the fire hose etc. are as waterplant in hollow plastic pipe, and the upper surface of framework also connects and seals beverage bottle as buoy;
(2) in the framework water body, add the biological reinforced liquid of combination, open aerating system simultaneously, handle after 5 days, get into step (3);
The said biological reinforced liquid of combination that adds in the framework water body is every m 3Water body adds 0.2-1.5L and makes up biological reinforced liquid;
The preparation method of the biological reinforced liquid of said combination is:
Blue-green algae bacterial strain Microcystis viridis (LJ2001170718 is available from hydrobiont institute of Ji'nan University) is inoculated in the nutrient solution, and initial inoculation concentration is about 10 4~10 5Individual/L; Postvaccinal nutrient solution is placed 25 ℃, the every 12h light and shade cycle cultivation of 2000lux fluorescent lamp, treat that nutrient solution medium blue concentration of algae reaches 10 8~10 9Individual/during L; The nutrient solution of this moment is called high algae liquid; The zooplankton (large-scale branch angle, small-sized branch angle, copepods, rotifers) that is divided into four types is dropped in the nutrient solution; Domestication respectively; The initial seston density of throwing in is 50-200/L; When chlorophyll concentration is lower than 30mg/L or Microcystin and is lower than 15ug/L, with the stoste of high algae liquid equivalent replacement 1/3rd, tame 20d more again; Then get the stoste of pending eutrophication water, after pending eutrophication water is cultivated through 20d, the biological reinforced liquid of combination is counted, is mixed with to the zooplankton in the pending high algae sewage as nutrient solution equivalent replacement 1/3rd;
The composition of said nutrient solution is following: every liter of nutrient solution contains 100mg NaNO 3, 15mg K 2HPO 4, 85mg MgSO 47H 2O, 40mg CaCl 22H 2O, 25mg Na 2CO 3, 8mg ironic citrate, 1mgNa 2EDTA2H 2O, surplus is a water;
The content of zooplankton is 2.2-2.8g/L in the biological reinforced liquid of described combination, and surplus is a water;
The zooplankton by large cladocerans Daphnia zooplankton square textured (Ceriodaphnia? Quadrangula), small cladocerans Daphnia zooplankton angularis textured (Ceriodaphnia? Cornuta), medium and large copepods (Sinocalanus Huazhe water Fleas Sinocalanus? tenellus., ham Xu Daphnia Schmackeria? poplesia), rotifers (lazy rotifers Rotaria? tardigrada, pot-shaped arm tail wheel Brachionus? urceus) in accordance with 10: (5-7): (2-4): 1 than the number of components; according to the degree of water quality Chinese, if chlorophyll concentrations greater than 60mg / L, the above four categories than the number of zooplankton adjusted to (12-15): 5:2:1.
The composition that makes up zooplankton in the biological reinforced liquid mainly is based on the unbalance of structure of zooplankton in the eutrophic lake and adjusts peculiar dominant species, and the species ratio obtains aforementioned proportion according to the previous experiments chamber to competition between species and conspiracy relation.Due to the impact of algal blooms, eutrophication water zooplankton communities in general by small species (such as rotifers and weevil genus Daphnia) and selectivity of zooplankton predators (such as Cyclops) composition, opposite a large, indiscriminate herbivores (eg Daphnia genus) are relatively scarce.
Said unlatching aerating system; The upper strata aeration head provides low-oxygen environment (DO=0.2-0.4mg/L), with suitable zooplankton growth, aerobic environment (DO=1.5-4mg/L) is provided around lower floor's aeration head; With suitable aerobic ammonia oxidation bacterial growth, be beneficial to the removal of ammonia-state nitrogen.
(3) to water body sampling microscopy; When the density of zooplankton meets or exceeds 2500/L; Water proof enclosed grid around folding removed water body; Enclose the grid bottom and change netted nylon wire into; Original grid that enclose are pending part eutrophication water and the biological reinforced liquid of combination that adds, and open system can be beneficial to biological looking for food all around, throws in local snail and filter-feeding fish (chain fish, bighead etc.) again; After one month, the water quality of eutrophication water has clear improvement.
The present invention has following advantage and effect with respect to prior art:
(1) the present invention uses bionical compounded mix, and the aquatic system species diversity that plays a crucial role for the purification of eutrophication water provides habitat and sanctuary.Bionical compounded mix center is a hard multiaspect hollow ball, and urethane strip soft-filler connects hollow ball through hole.The existing part that is similar to rock wall of bionical compounded mix can be native country zoobenthos (like snail) habitat is provided, and there is micropore on the surface, and microbial film is prone to apposition growth; Have the soft-filler that suspends in water simultaneously, the direct ingester-macrozooplankton that can be algae provides sanctuary.This filler has adopted eco-friendly raw material development, can under physical environment, degrade after 1 year in stable use, reduces second environmental pollution.
(2) the present invention adopts aeration rate and the adjustable method of light intensity, can simulate suitable planktonic growing environment, can make unbalance aquatic system recover benign cycle rapidly.
(3) to the zooplankton type and the structure in different waters, the native country zooplankton is carried out the method to algae toxin tolerance acclimation shaking culture and enrichment culture, can strengthen the ingest removal ability of zooplankton algae.Avoid throwing in the functional biological preparation and cause and to invade by alien species, have the Biosafety guarantee that water bloom of water body is removed.
(4) working cost is low, and obvious economic benefit output is arranged in system's operational process.Running cost is mainly used in two-layer aeration different dissolved oxygen environment is provided.Nitrogen and phosphorous nutrient arrives waterplant and fish through food chain transport.Can obtain economic benefit through the results of plantation economic waterplant (like aquatic vegetable) and economic fish.
(5) treatment effect of the present invention is rapid, on the 10-30% of staying water water surface area, implements this technology, can recover the diversity of aquatic ecosystem at 1-3 month, and the biomass of zooplankton increases more than 50%.
Description of drawings
Fig. 1 is the composition synoptic diagram (rip cutting figure) of bionical aquatic ecosystem in the eutrophication water;
Fig. 2 is the composition synoptic diagram (aerial view) of bionical aquatic ecosystem in the eutrophication water;
Wherein, 1-green plants, 2-aeration head, the bionical compounded mix of 3-(with microbial film), 4-fish, 5-zooplankton.
Embodiment
Below in conjunction with embodiment and accompanying drawing the present invention is described in further detail, but embodiment of the present invention is not limited thereto.
Embodiment 1
The preparation method of bionical compounded mix may further comprise the steps:
The first step, preparation hard multiaspect hollow ball (about 10kg) may further comprise the steps:
(1) under the situation that catalytic component based on vanadium (500g) exists, get polyester (LG-DOW, PU350), N-methylmorpholine-N-oxide compound mixes with water, the mass ratio of three kinds of reactants is 90: 2: 8,70 ℃ of following stirring reaction 3h obtain hydroxylated polyester;
(2) under the situation of initiator cerium ion (100g) and dicumyl peroxide (450g) existence; (German BASF BASF E1500) mixes, and the mass ratio of two kinds of reactants is 10: 1 to get hydroxylated polyester and tetraethylene pentamine; 110 ℃ of following reaction 5h obtain the hydroxylated polyester after the modification;
(3) hydroxylated polyester after the modification, starch, poly(lactic acid) are mixed by mass ratio at 10: 4: 1; 220 ℃ are reacted 10h down; Obtain the different bio-degradable plastics of physical strength,, obtain having the hard multiaspect hollow ball of edge hole again through plastic working program extrusion molding commonly used.
Second step, preparation urethane strip soft-filler (about 1kg) may further comprise the steps:
(1) under the situation that catalytic component based on vanadium (20g) exists, get polyester (LG-DOW, PU350), N-methylmorpholine-N-oxide compound mixes with water, the mass ratio of three kinds of reactants is 90: 2: 8,70 ℃ of following stirring reaction 3h obtain hydroxylated polyester;
(2) under the situation of initiator cerium ion (80g) and dicumyl peroxide (50g) existence; (German BASF BASF E1800) mixes, and the mass ratio of two kinds of reactants is 15: 1 to get hydroxylated polyester and triethylene diamine; 120 ℃ of following reaction 4h obtain the hydroxylated polyester after the modification;
(3) hydroxylated polyester after the modification, starch, poly(lactic acid) are mixed by 5: 3: 1 mass ratio; And adding accounts for whipping agent (the Nanjing card Neil of three's total mass 0.8%; CFS); 170 ℃ are reacted 5h down; Obtain the polyester soft-filler; Through extrusion molding of plastic working program and cutting commonly used, obtain urethane strip soft-filler again.
The 3rd step, connect into bionical compounded mix with hard multiaspect hollow ball and urethane strip soft-filler are manual.
Embodiment 2
A kind of water body purification bionic system comprises bionical compounded mix, aeration head, waterplant, zooplankton and filter-feeding fish that a rectangular parallelepiped or square framework, embodiment 1 prepare; Above-mentioned bionical compounded mix is installed in the bottom surface of framework; The scalable adjusting of length around the framework; In order to the bionical compounded mix of regulating the framework bottom surface height apart from the water surface; In the different weather of intensity of illumination; The light intensity of the bionical compounded mix of scalable position is to reach the purpose of protection zooplankton; Aerating system adopts micro porous aeration head; Lay two-layer micro porous aeration head up and down altogether; The upper strata micro porous aeration head is laid in 50-80cm place, top, bionical compounded mix center; Lower floor's micro porous aeration head is laid on the isoplanar of bionical compounded mix; Two-layer aeration head is through pvc pipe and frame fixation; Adopt two aerators to charge into air respectively, the dissolved oxygen of different concns is provided; The upper surface of framework is divided into some rectangles with hollow plastic pipe, in hollow plastic pipe with the fixing plantation dish of rope, planting aquatic plants; The composition of water body purification bionic system as depicted in figs. 1 and 2.
Embodiment 3
A kind of method of purifying of the hypertrophic water system being removed algae
Place, the testing ground water surface 100,000m 3The pool, admit sanitary sewage 50m every day 3, summer and autumn blue-green algae take place frequently.Pool water before handling carries out sample circuit according to the method for surface water water environment evaluation and detects, and water quality is bad five types.
(1) in the pool, marking a water surface area is 10,000m 3Scope, with enclosing grid with water proof and fence up around this scope, process the framework of 100m * 50m * 6m (length * wide * height) with engineering plastics pipe and put into this scope water body, frame area accounts for 5% of pool area.
The bionical compounded mix that embodiment 1 prepares is installed in bottom at framework.The center of bionical compounded mix is a hard multiaspect hollow ball, and the spheroid edge is porose, and urethane strip soft-filler connects the hard spheroid through hole.The specific surface area of hard multiaspect hollow ball is about 250m 2/ m 3Urethane strip soft-filler proportion is about 1, and porosity is 80-150%, can be suspended in the water.
Framework can regulated the height of bionical compounded mix apart from the water surface in the scope of water surface 6-0.5m, the cloudy day is adopted the filler immovable bed degree of depth apart from water surface 1-3m, and sunny day adopts the filler immovable bed degree of depth apart from water surface 4-6m.Aerating system adopts micro porous aeration head; Lay two-layer micro porous aeration head up and down altogether; The upper strata micro porous aeration head is laid in 50-80cm place, top, bionical compounded mix center; Lower floor's micro porous aeration head is laid on the isoplanar of bionical compounded mix; Two-layer aeration head is through pvc pipe and frame fixation; Adopt two aerators to charge into air respectively, the dissolved oxygen of different concns is provided; The upper surface of framework is divided into some rectangles with hollow plastic pipe, and with the fixing plantation dish of nylon rope, plantation eel grass, the fire hose etc. are as waterplant in hollow plastic pipe, and the upper surface of framework also connects the empty beverage bottle that seals as buoy.
(2) in the framework water body, add the biological reinforced liquid of combination, every m 3Water body adds 1.5L and makes up biological reinforced liquid, and the content that makes up zooplankton in the biological reinforced liquid is 2.2-2.8g/L, and surplus is a water;
The preparation method of the biological reinforced liquid of said combination is:
Blue-green algae bacterial strain Microcystis viridis (LJ2001170718 is available from hydrobiont institute of Ji'nan University) is inoculated in the nutrient solution, and initial inoculation concentration is about 10 4~10 5Individual/L; Postvaccinal nutrient solution is placed 25 ℃, the every 12h light and shade cycle cultivation of 2000lux fluorescent lamp, treat that nutrient solution medium blue concentration of algae reaches 10 8~10 9Individual/during L; The nutrient solution of this moment is called high algae liquid; The zooplankton (large-scale branch angle, small-sized branch angle, copepods, rotifers) that is divided into four types is dropped in the nutrient solution; Domestication respectively; The initial seston density of throwing in is 50-200/L; When chlorophyll concentration is lower than 30mg/L or Microcystin and is lower than 15ug/L, with the stoste of high algae liquid equivalent replacement 1/3rd, tame 20d more again; Then get the stoste of pending eutrophication water, after pending eutrophication water is cultivated through 20d, the biological reinforced liquid of combination is counted, is mixed with to the zooplankton in the pending high algae sewage as nutrient solution equivalent replacement 1/3rd;
The composition of said nutrient solution is following: every liter of nutrient solution contains 100mg NaNO 3, 15mg K 2HPO 4, 85mg MgSO 47H 2O, 40mg CaCl 22H 2O, 25mg Na 2CO 3, 8mg ironic citrate, 1mgNa 2EDTA2H 2O, surplus is a water;
The zooplankton by large cladocerans Daphnia zooplankton square textured (Ceriodaphnia? Quadrangula), small cladocerans Daphnia zooplankton angularis textured (Ceriodaphnia? Cornuta), medium and large copepods (Sinocalanus Huazhe water Fleas Sinocalanus? tenellus., and / or ham Xu Daphnia Schmackeria? poplesia), rotifers (lazy rotifers Rotaria? tardigrada and / or pot-shaped arm tail wheel Brachionus? urceus) in accordance with 10: (5-7): (2 - 4): a ratio of the number of components; according to the degree of water quality Chinese, if chlorophyll concentrations greater than 60mg / L, the above four categories than the number of zooplankton adjusted to (12-15): 5:2: 1.
When in the framework water body, adding the biological reinforced liquid of combination; Open aerating system; In the 50-80cm of top, bionical compounded mix hard center low-oxygen environment (DO=0.2-0.4mg/L) is provided; With suitable zooplankton growth; Aerobic environment (DO=1.5-4mg/L) is provided around the filler hard center; With suitable aerobic ammonia oxidation bacterial growth, be beneficial to the removal of ammonia-state nitrogen; The aeration of system moves 18 hours every day, realizes intermittent aeration, and every interval aeration 2 hours stops 2.5 hours, and power switch adopts Preset Time, need not manual operation.Handle after 5 days, get into purifying treatment subordinate phase (being step (3)).
(3) to water body sampling microscopy; When the density of zooplankton meets or exceeds 2500/L; Water proof enclosed grid around folding removed water body; Enclose the grid bottom and change netted nylon wire into; Open system can be beneficial to biological looking for food all around; Throw in the fish (chain fish, bighead etc.) of local snail and filter-feeding again, this stage is still according to the aeration scheme aeration of fs (being step (2)).
The purifying treatment subordinate phase was handled after 60 days, and the pool water-quality guideline is following: COD=20.3mg/L, ammonia nitrogen=0.21mg/L, total phosphorus=0.02mg/L, turbidity=0.4NTU, dissolved oxygen>4.5mg/L.Ammonia nitrogen and total phosphorus are the leading indicators of body eutrophication, illustrate that thus this method is specially adapted to the restoration of the ecosystem of middle-size and small-size eutrophication water.
The working cost of the inventive method is 0.25~0.5 yuan/day, and working cost is low.
The foregoing description is a preferred implementation of the present invention; But embodiment of the present invention is not restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; All should be the substitute mode of equivalence, be included within protection scope of the present invention.

Claims (10)

1. bionical compounded mix, it is characterized in that: its center is a hard multiaspect hollow ball, and there is hole at the spheroid edge, urethane strip soft-filler connects hard multiaspect hollow ball through hole.
2. bionical compounded mix according to claim 1 is characterized in that: described hard multiaspect hollow ball is prepared by following steps:
(1) under the situation that catalytic component based on vanadium exists, get polyester, N-methylmorpholine-N-oxide compound mixes with water, the mass ratio of three kinds of reactants is 90: (2-5): (4-8), 60-80 ℃ of following stirring reaction 3h obtains hydroxylated polyester;
(2) under the situation that initiator cerium ion and dicumyl peroxide exist, get hydroxylated polyester and mixes with polyethylene polyamine class monomer, the mass ratio of two kinds of reactants is (8-16): 1, react 5h 90-120 ℃ time, and obtain the hydroxylated polyester after the modification;
(3) with the hydroxylated polyester after the modification, starch, poly(lactic acid) by mass ratio (10-8): mix at 4: 1,190-230 ℃ of reaction 7-10h down, the material that obtains extrusion molding again obtains hard multiaspect hollow ball.
3. bionical compounded mix according to claim 1 is characterized in that: described urethane strip soft-filler is prepared by following steps:
(1) under the situation that catalytic component based on vanadium exists, get polyester, N-methylmorpholine-N-oxide compound mixes with water, the mass ratio of three kinds of reactants is 90: (2-5): (4-8), 60-80 ℃ of following stirring reaction 3h obtains hydroxylated polyester;
(2) under the situation that initiator cerium ion and dicumyl peroxide exist, get hydroxylated polyester and mixes with polyethylene polyamine class monomer, the mass ratio of two kinds of reactants is (8-16): 1, react 5h 90-120 ℃ time, and obtain the hydroxylated polyester after the modification;
(3) hydroxylated polyester after the modification, starch, poly(lactic acid) are pressed (8-5): (3-2): 1 mass ratio mixes; And adding accounts for the whipping agent of three's total mass 0.5-1%; 150-170 ℃ is reacted 2-8h down; Obtain the polyester soft-filler; Through extrusion molding and cutting, obtain urethane strip soft-filler again.
4. the preparation method of each described bionical compounded mix of claim 1-3 is characterized in that: be hard multiaspect hollow ball is connected with urethane strip soft-filler and obtains.
5. a water body purification bionic system is characterized in that: comprise a rectangular parallelepiped or square framework, each described bionical compounded mix of claim 1-3, aeration head, waterplant, zooplankton and filter-feeding fish; Bionical compounded mix is installed in the bottom surface of framework; The scalable adjusting of length around the framework; Be fixed with two-layer aeration head on the framework, the upper strata aeration head is laid in 50-80cm place, top, bionical compounded mix center, and lower floor's aeration head is laid on the isoplanar of bionical compounded mix; The upper surface of framework is divided into some rectangles with hollow plastic pipe, in hollow plastic pipe with the fixing plantation dish of rope, planting aquatic plants.
6. one kind is removed the method for algae to purifying of the hypertrophic water system, it is characterized in that may further comprise the steps:
(1) in pending eutrophication water, marks a scope; Fence up enclosing grid with water proof around this scope, put into a rectangular parallelepiped or square framework, each described bionical compounded mix of claim 1-3 is installed in the bottom surface of framework; On framework, fix two-layer aeration head, the upper strata aeration head is laid in 50-80cm place, top, bionical compounded mix center, and lower floor's aeration head is laid on the isoplanar of bionical compounded mix; The upper surface of framework is divided into some rectangles with hollow plastic pipe, in hollow plastic pipe with the fixing plantation dish of rope, planting aquatic plants;
(2) add the biological reinforced liquid of combination in the framework water body, open aeration head oxygen supply in the water body simultaneously;
(3) when the density of zooplankton in the framework water body meets or exceeds 2500/L, water proof enclosed grid around folding removed water body, threw in filter-feeding fish again;
The content of zooplankton is 2.2-2.8g/L in the biological reinforced liquid of the described combination of step (2), and surplus is a water;
The preparation method of the biological reinforced liquid of the said combination of step (2) is:
The blue-green algae bacterial strain is inoculated in the nutrient solution, and initial inoculation concentration is 10 4~10 5Individual/L; Postvaccinal nutrient solution is placed 25 ℃, the every 12h light and shade cycle cultivation of 2000lux fluorescent lamp, treat that cyanobacterium strain concentration reaches 10 in the nutrient solution 8~10 9Individual/during L; The nutrient solution of this moment is called high algae liquid; The zooplankton that is divided into four types is dropped in this nutrient solution; Cultivate respectively; The initial seston density of throwing in is 50-200/L; When chlorophyll concentration in the nutrient solution is lower than 30mg/L or Microcystin and is lower than 15ug/L, with the stoste of high algae liquid equivalent replacement 1/3rd, cultivate 20d more again; Then get the stoste of pending eutrophication water as nutrient solution equivalent replacement 1/3rd, cultivate 20d again after, with the zooplankton counting, be mixed with the biological reinforced liquid of combination;
Described by a square textured zooplankton Daphnia, Daphnia corner sudden textured, medium and large copepods, rotifers animals in accordance with 10: (5-7): (2-4): a mass ratio of composition; If chlorophyll concentrations greater than 60mg / L, the above four categories of zooplankton mass ratio is adjusted to (12-15): 5:2:1;
Described big-and-middle-sized copepods animal is that exquisite magnificent wise water flea and/or ham are permitted water flea;
Described rotifers animal is lazy wheel animalcule and/or gyalectiform arm tail wheel.
7. according to claim 6 to the method for purifying of the hypertrophic water system except that algae, it is characterized in that: the water surface area of the said scope of step (1) is the 10-30% of pending eutrophication water water surface area.
8. according to claim 6 to the method for purifying of the hypertrophic water system except that algae, it is characterized in that: step (2) is said to add the biological reinforced liquid of combination in the framework water body, be every m 3Water body adds 0.2-1.5L and makes up biological reinforced liquid.
9. the method for purifying of the hypertrophic water system being removed algae according to claim 6; It is characterized in that: the oxygen supply in the water body of the said unlatching aeration head of step (2); Its at the middle and upper levels the dissolved oxygen concentration that provides of aeration head be 0.2-0.4mg/L, the dissolved oxygen concentration that lower floor's aeration head provides is 1.5-4mg/L.
10. according to claim 6 to the method for purifying of the hypertrophic water system except that algae, it is characterized in that: the composition of said nutrient solution is following: every liter of nutrient solution contains 100mg NaNO 3, 15mg K 2HPO 4, 85mgMgSO 47H 2O, 40mg CaCl 22H 2O, 25mg Na 2CO 3, 8mg ironic citrate, 1mgNa 2EDTA2H 2O, surplus is a water.
CN2011102408558A 2011-08-22 2011-08-22 Bionic composite filler, water body purification bionic system, and method for purifying and removing algae CN102303923B (en)

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CN103214099A (en) * 2013-05-07 2013-07-24 吕健 Ecological restoration and purification method for water of lake and pool wet land
CN104860392A (en) * 2015-04-30 2015-08-26 江苏大学 Sewage purification bionic packed bed device
CN105923779A (en) * 2016-06-15 2016-09-07 湖州师范学院 Ecological shelter type eutrophic water treatment method

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CN2926210Y (en) * 2006-07-19 2007-07-25 湖北大学 Composite ecological chinampa water purifier
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CN103214099A (en) * 2013-05-07 2013-07-24 吕健 Ecological restoration and purification method for water of lake and pool wet land
CN103214099B (en) * 2013-05-07 2015-04-15 广东天一圆生态建筑设计院有限公司 Ecological restoration and purification method for water of lake and pool wet land
CN104860392A (en) * 2015-04-30 2015-08-26 江苏大学 Sewage purification bionic packed bed device
CN104860392B (en) * 2015-04-30 2018-04-24 江苏大学 A kind of sewage purification bionic filler bed apparatus
CN105923779A (en) * 2016-06-15 2016-09-07 湖州师范学院 Ecological shelter type eutrophic water treatment method

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