CN100337940C - Purifying system and method for mother of pearl in lake water-resource nutrient-enriched water body - Google Patents
Purifying system and method for mother of pearl in lake water-resource nutrient-enriched water body Download PDFInfo
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Abstract
The present invention relates to a purifying system and a purifying method of mussels in a eutrophic water body of a lake water source region, which belongs to the technology of biological purification of the eutrophic water body of a lake water source region and the technology of resource utilization of eutrophic water. The purifying system comprises piles, a floating ball, nylon ropes, and a mesh frame basket for holding mussels. The present invention is characterized in that the method can reduce the biomass of algae and suspended substances by using the intensive arrangement of the mussels in the eutrophic water body of a lake water source region; the purifying system of the mussels of a lake water column of corresponding time is established according to the water consumption of the water source region so as to determine the unit eliminating quantity of the optimum mussels for chlorophyll a and the suspended substances; the biomass of needed mussels is determined in the eutrophic water body of a lake water source region so as to establish purifying system engineering of the mussels in the eutrophic water body of a lake water source region; the integrity of an engineering structure is retained by periodical patrol and management; the mussels which are grown up are periodically collected, and simultaneously, the corresponding biomass of the mussels in an engineering area is replenished by using the well-grown youthful mussels.
Description
Technical field
What the present invention relates to is purification system and the purifying method thereof of freshwater mussel in the waterhead area eutrophic water body of a kind of lake, belongs to lake waterhead area eutrophic water body biopurification technology and eutrophic water resource technology.Also be applicable to and carry out aquaculture in the waters eutrophic water bodies such as swing on river, beach, pond and purify water.
Background technology
The many lakes of China, national 1km
2275 of above natural lakes, total area 101km
2, account for area 0.5%; Wherein 1/3 is freshwater lake, mainly is distributed in the coastal and middle and lower reach of Yangtze River wide geographic area in east.This district is for economically developed Plain, and is populous, water consumption is big, adds unfavorable mankind's activity, has greatly changed lake natural ecological system material cycle and flow of energy, so that most lake faces different ecological environment problems.For example: lake ecosystem functional deterioration, blue-green alga bloom frequently break out, the water quality lack of water is on the rise, the flood aggravation, cause tremendous economic loss etc. simultaneously.Picture Taihu Lake water quality, in nearest 20 years average per 10 years, grade of deteriorating water quality, even blue-green alga bloom took place break out was produced the Wuxi City city and difficulty takes place domestic water, has a strong impact on resident's the daily life and the normal development of economy.Decades, countries and regions government dropped into great amount of manpower and material resources recently, and the measure of taking has source of pollution control or blue-green alga bloom control, bed mud dredging etc.
Summary of the invention
The objective of the invention is to provide purification system and the purifying method thereof of freshwater mussel in the waterhead area eutrophic water body of a kind of lake at above-mentioned weak point, in the waterhead area eutrophic water body of lake, the purification system that reduces algae bio amount and the preferable freshwater mussel biomass of suspended substance is set, set up the purifying water body engineering, reach the biopurification water body, constantly from the waterhead area eutrophic water body, propose the purpose of unnecessary nutritive substance, and, reach the eutrophic water body recycling by freshwater mussel.
Purification system of freshwater mussel and purifying method thereof are to take following scheme to realize in the waterhead area eutrophic water body of lake:
The purification system of freshwater mussel in the waterhead area eutrophic water body of lake is characterized in that purification system comprises stake, ball float, nylon rope, Sheng freshwater mussel mesh frame basket.Several stakes are distributed in the lake waterhead area and squeeze into lake 0.5～1m at the hard end, several ball floats are fixed on the nylon rope, ball float spacing 6～8m, nylon rope is fixed on the active ring, active ring is sleeved in the stake, can can move up and down in stake with the lake water fluctuation in stage, stake is surfaced and highly should be surpassed this lake year top water-level value 0.5m, and built-in appearance becomes the grid type structure in this waters with nylon rope in these stakes.Active ring can adopt metallic substance active ring or highstrenghtpiston's active ring, requires in the use indeformable.Several are contained freshwater mussel mesh frame basket and purify within the water surface at need, are evenly distributed on the nylon rope of system's setting and hang, and contain 3～4 of freshwater mussel mesh frame basket dress freshwater mussels for every, hang under the lake water face with rope, and the degree of depth is water body average transparency * 0.8cm.Contain the whole frame basket sealing of freshwater mussel mesh frame basket, freshwater mussel can not drop out, and frame basket top is provided with square.
The purifying method of the purification system of freshwater mussel in the waterhead area eutrophic water body of lake is characterized in that in the waterhead area eutrophic water body of lake, uses the intensification setting of freshwater mussel, reduces algae bio amount and suspended substance amount:
A, decision unit of water body are provided with the freshwater mussel biomass:
(1) enclosure of in need purify waterhead area waters, lake, selecting to set up in the representative waters freshwater mussel column system of purifying waste water;
(2) to the enclosure of freshwater mussel purify waste water column system implement results of regular determination, data comparison, by calculating the screening unit amount of cancellation of freshwater mussel to chlorophyll a, suspended substance in the water body, when 18～25 ℃ of water temperatures, chlorophyll a unit's amount of cancellation is 100～400 μ g/kg.h, the amount of cancellation 60～100mg/kg.h of suspended substance unit;
(3) eliminate value according to above-mentioned (2) unit of filtering out, calculating needs to purify the total biomass that freshwater mussel is set in the waters;
In B, the lake waterhead area eutrophication water, build the purification system engineering of freshwater mussel in the waterhead area eutrophic water body of lake:
(1) select well-grown " young " freshwater mussel, " young " freshwater mussel age was 1～2 age, and selected to breed then and the cristaria plicata of the long 7～10cm of body that grows up to or the hydriopsis cumingii of the long 7～10cm of in July, second precursor, was used for the purification system engineering;
(2) the purification system engineering-built of freshwater mussel in the lake waterhead area eutrophic water body: purify built-in bamboo stake or the timber made in eutrophy waters at need, squeeze into lake 0.5～1m at the hard end, lead nylon rope between stake, fixed interval ball float on the rope, ball float spacing 6～8m, built-in appearance becomes the grid type structure in this waters with rope in these stakes, be fixed on the nylon rope with containing freshwater mussel mesh frame basket with containing freshwater mussel and equispaced, contain freshwater mussel mesh frame basket dress freshwater mussel 3～4 for every, freshwater mussel is hung support under the water surface, the degree of depth is water body average transparency * 0.8cm;
(3) nylon rope is fixed on the special active ring described in above-mentioned (2), active ring is enclosed within bamboo stake or the timber, the active ring size goes up to be enclosed within stake that to move up and down neatly be degree, and the nylon rope of hanging foster freshwater mussel can be fluctuated with the lake water fluctuation in stage by ball float;
C, the regular inspection management of the purification system engineering district enforcement of freshwater mussel in the waterhead area eutrophic water body of the lake of the described construction of above-mentioned B keep the complete of engineering structure; The freshwater mussel that planned results grow up to is replenished the corresponding biomass of engineering district freshwater mussel simultaneously with well-grown young freshwater mussel.
The freshwater mussel body of regularly gathering and growing up to reaches the purpose that constantly proposes unnecessary nutritive substance from the waterhead area eutrophic water body, and by freshwater mussel, reaches the eutrophic water body recycling.
The filter-feeding hydrobiont is not only a kind of being worth to the regulation and control purifying water body of planktonic algaes such as blue-green algae and further studies the direction that the reduction wawter bloom takes place, and can drop into application.The fresh water mussels is an important filter-feeding bottom-dwelling in the Freshwater ecosystems such as lake, belong to short food chain series, they play an important role in the material cycle of lake aquatic attitude system, and be can be for the aquatic resources of people's utilization, by planned shifting out in lake aquatic attitude system, can reduce the nutrition load in lake, help to slow down the eutrophication process in lake.The hydriopsis cumingii, cristaria plicata of adopting different biological densities under the varying environment condition to water body in suspended substance, chlorophyll a growth and decline and to the influence of algae and water population structure, and then under the condition of the former habitat of lake waterhead area control algae and purifying water body and set up mass-producing engineering input and use.
We see that in foster freshwater mussel is grown cultured pearls production and research large-scale lamellibranches has very strong filter food algae function and water purification usefulness, and this class benthic mollusca is filtered the food well-grown when extension is supported in the water body top layer, so can implement high-density fully in the waterhead area waters hangs foster, set up the purifying water body engineering, the advantage of this shellfish control algae engineering is to adjust space layout as required, and reclaim the shellfish grow up at any time easily and fully utilize, this biopurification water body is suitable for the innoxious requirement of waterhead area.And can might not destroy the partial bottom biotic population structure of dwelling because of excessively releasing.The present invention is a kind of in the waterhead area eutrophic water body of lake, uses the intensification setting of freshwater mussel, reduces the method for algae bio amount and suspended substance.
We have built 1 square kilometre of freshwater mussel intensification purifying water body engineering at Taihu Lake Mei Liangwan waterhead area, and are respond well after tested.
Purification system of freshwater mussel and purifying method characteristics thereof are in the waterhead area eutrophic water body of lake:
1, according to the waterhead area water consumption, set up the lake water column freshwater mussel purification system of corresponding time, determine that best freshwater mussel is to chlorophyll a and suspended substance unit's amount of cancellation.
2, according to freshwater mussel to the best unit of chlorophyll a and suspended substance amount of cancellation, in the waterhead area eutrophic water body, determine to be provided with the biomass of required freshwater mussel, and set up the purifying water body engineering of freshwater mussel.
3, the freshwater mussel body of regularly gathering and growing up to reaches the purpose that constantly proposes unnecessary nutritive substance from the waterhead area eutrophic water body, and by freshwater mussel, reaches the eutrophic water body recycling.
The present invention is by setting up rational water column system in eutrophic water body, measure the cleaning action of shellfish to the water column system, obtain shellfish to algae and water and the best unit of suspended substance amount of cancellation, in view of the above, determine to be provided with in this water body the biomass of shellfish, and in the lake, set up shellfish intensification purifying water body engineering, and in a planned way the shellfish that grows up to is gathered in the crops in replacement, reach the amount that both realizes reducing in the waterhead area eutrophic water body of lake algae and suspended substance, make nutritive substance unnecessary in the water body be converted into available shellfish again.This is that the intensification of shellfish is cultivated, and at the complex art that the lake waterhead area carries out biopurification, has embodied at lake waterhead area innoxious use eutrophic water body and the scientific thought that brings benefits.
Description of drawings
The invention will be further described below with reference to accompanying drawing.
Fig. 1 is the purification system layout of freshwater mussel in the waterhead area eutrophic water body of lake.
Fig. 2 is the purification system structure iron of freshwater mussel in the waterhead area eutrophic water body of lake.
Among the figure: 1, stake, 2, ball float, 3, active ring, 4, nylon rope, 5, contain freshwater mussel mesh frame basket, 6, lake, 7, the hard end, lake
Embodiment
With reference to accompanying drawing 1,2, the purifying method of the purification system of freshwater mussel in the waterhead area eutrophic water body of lake:
1, carries out cristaria plicata or hydriopsis cumingii artificial propagation and reinforced cultivating.
2, select well-grown cristaria plicata or hydriopsis cumingii.
3, in the eutrophy waters that needs purify, set up the enclosure water column purifying water body system of freshwater mussel, measure corresponding time freshwater mussel freshwater mussel in this water column system the best unit amount of cancellation of chlorophyll a and suspended substance and is determined need be provided with the biomass of freshwater mussel in unit of water body.
Method is:
1. in the lake waters that need purify, select to be provided with in the representative eutrophy waters 5～6 groups of fluid-tight enclosure water column systems;
2. the freshwater mussel of different freshwater mussel number of elements gradient biomasss is set in the enclosure water column system, establishes one group simultaneously and do not put freshwater mussel as blank;
3. get each enclosure system water sample regularly, simultaneously;
4. measure the amount of chlorophyll a, suspended substance in each water sample respectively; Identify algae and counting simultaneously;
5. with the contrast of blank group, calculate the unit amount of cancellation of freshwater mussel to chlorophyll a, suspended substance in the water column system; Select optimum value to calculate to need to purify unit of water body in the waters that the biomass of freshwater mussel is set.Can be with reference to the following purifying water body freshwater mussel biomass calculation formula that needs.
4, set up the purifying water body systems engineering of freshwater mussel
Based on bamboo stake or timber, the nylon rope of apparatus ball float connects between stake, and nylon rope is enclosed within active ring that stake is gone up and can be up and down in stake, makes the nylon rope can be with the lake water fluctuation in stage adjusting of floating, the fixing extension supported the Sheng freshwater mussel mesh frame basket of containing freshwater mussel on the rope, and Sheng freshwater mussel mesh frame basket is hung and supported at preferable water layer.Containing freshwater mussel mesh frame basket is evenly distributed in the required purification water surface.The biomass that the total number of elements of freshwater mussel adds up to is identical with the freshwater mussel biomass that 5. partly calculates in above-mentioned 3.
Preferable biomass cristaria plicata is set in the lake eutrophication water body, when water temperature can reduce the about 3500kg of algae bio amount (doing) weekly for about 20 ℃ in 1 square kilometre of engineering district scope, and most ofly in the algae that reduces belong to blue-green algae and belong to Microcystis aeruginosa in the blue-green algae; Reduce the about 13600kg of suspended substance, the freshwater mussel engineering district that purifies water hangs foster freshwater mussel and can obtain freshwater mussel output 600kg through 6 months per 100,000 cristaria plicatas in the first half of the year, and per 100,000 hydriopsis cumingiis can be obtained freshwater mussel output 1000kg.
5, system engineering management and grow up to freshwater mussel and gather
The purification system supervision of construction content of freshwater mussel mainly comprises:
(1) makes regular check on physiology, the growing state of freshwater mussel; Inspection engineering structure situation keeps engineering structure complete, and engineering damage part is in time repaired; Increase the inspection frequency in the season of growth of freshwater mussel;
(2) planned, the freshwater mussel that grown up to of results is in batches in time changed physically different or dying freshwater mussel, simultaneously with the corresponding biomass of the additional engineering district of well-grown young freshwater mussel freshwater mussel.
Specific embodiments
1, cultivating well-grown, freshwater mussel that physiological function is vigorous, is to guarantee to have one of key of best unit water purification function.Concrete grammar is:
(1) selects, cultivates good parent freshwater mussel, be used to breed young freshwater mussel.Adopt artificial the grow cultured pearls selection in producing and the method for cultivating close freshwater mussel of freshwater mussel of supporting to carry out, and annually replenish the parent freshwater mussel that grows up to introduction by different zones, different reproductive colony, avoid endogamy.
(2) foster, reinforced cultivating of young, young freshwater mussel that grows up to and time-division, the freshwater mussel that is used for cleaning project, select well-grown " young " freshwater mussel, " young " freshwater mussel age was 1～2 age, and selected to breed then and the cristaria plicata of the long 7～10cm of body that grows up to or the hydriopsis cumingii of the long 7～10cm of in July, second precursor.
2, the decision unit of water body is provided with in the freshwater mussel biomass method in the lake eutrophication water body:
(1) the enclosure water column is provided with: select representative eutrophy waters that 5～6 groups of enclosure freshwater mussel purification system water columns are set in the lake waters that need purify; Every group 2～4 as parallel group; Every enclosure water column area 1～2m
2, establish and enclose water column volume 2～4m
3Cylindrical enclosure skeleton can adopt reinforcing bar or the firm Tie system of circle bamboo, and the skeleton outer gland sealing encloses with canvas, preferably winds with plastic tape at canvas and skeleton contact site, to prevent that canvas from being galled.The enclosure bottom peripheral edge is imbedded in the bottom mud in lake and with the bamboo let insertion with the stone dragon and is fixed, and enclosure is suitable for reading to be opened wide, and periphery exceeds the water surface 0.5～0.8m or raises out the water surface with ball float, keeps the whole testing period, and the inside and outside water body of enclosure water column is isolated to be exchanged.
Each group of whole enclosure freshwater mussel purification system water column is all fixedly gone along with sb. to guard him within setting up the bamboo frame that is fixed in the lake.
(2) setting of freshwater mussel: in the enclosure water column system, the number of elements of freshwater mussel is with the gradient setting, and freshwater mussel contains with the mesh bag that the bamboo circle struts aperture 1～2cm.2～3 of every packed freshwater mussels, dress freshwater mussel mesh bag is evenly distributed to hang at the enclosure water surface and supports below the water surface, and the degree of depth is: water body average transparency * 0.8cm.For example: water transparency is 40cm, and the degree of depth is about 32cm.
(3) regularly extract each enclosure water column system water sample, measure the amount of chlorophyll a, suspended substance respectively and carry out qualitative, the quantitative assay of algae.When 18～25 ℃ of water temperatures, chlorophyll a unit's amount of cancellation is 100～400 μ g/kg.h, the amount of cancellation 60～100mg/kg.h of suspended substance unit;
Measuring method is bright with reference to metallographic, slaughtered clear beautiful jade 2000, and lake eutrophication investigation standard (second edition) is carried out.
(4) value surveyed in above-mentioned (3) and the value of blank group are relatively calculated the unit amount of cancellation of freshwater mussel to chlorophyll a, suspended substance in the water body, calculate the total biomass that freshwater mussel is set with optimum value in the lake eutrophication water body that need purify.
3, the construction of the engineering of the purification system of freshwater mussel in the lake waterhead area eutrophic water body
Purifying water body systems engineering structure of freshwater mussel and systems engineering layout are seen accompanying drawing 1, accompanying drawing 2.The purification system of freshwater mussel comprises stake 1, ball float 2, nylon rope 4, contains freshwater mussel mesh frame basket 5 in the waterhead area eutrophic water body of lake; Several stakes 1 are distributed in the lake waterhead area and squeeze into lake 0.5～1m at the hard end 7, several ball floats 2 are fixed on the nylon rope 4, ball float 2 spacings 6～8m, nylon rope 4 is fixed on the active ring 3, active ring 3 is sleeved in the stake, can in stake, can move up and down with the lake water fluctuation in stage, the stake 1 surface 6 the height should surpass this lake year top water-level value 0.5m, active ring 3 can adopt metallic substance active ring or highstrenghtpiston's active ring, require in the use indeformable, several are contained freshwater mussel mesh frame basket 5 and purify within the water surface at need, on the nylon rope 4 of system's setting, be evenly distributed and hang, contain 3～4 of freshwater mussel mesh frame basket 5 dress freshwater mussels for every, hang under the lake water face with rope, the degree of depth is water body average transparency * 0.8cm.Contain the 5 whole frame basket sealings of freshwater mussel mesh frame basket, freshwater mussel can not drop out, and frame basket top is provided with square.Contain freshwater mussel mesh frame basket 5 and can adopt sponge plastics frame basket or porous metal material frame basket.
General description of construction: in the purifying water body systems engineering construction of freshwater mussel:
(1) several stakes 1 should be squeezed into lake 0.5～1m at the hard end 7
(2) several ball floats 2 are fixed on the nylon rope 4; Ball float 2 spacing 7m, 1 year according to freshwater mussel bulk-growth situation increase ball float number.
(3) active ring 3 diameters＞stake diameter, nylon rope 4 is fixed on the active ring 3, and active ring 3 can be moved up and down in stake 1 with the lake water fluctuation in stage; Stake 6 height that surface should surpass this water level maximum in lake year.Active ring 3 can adopt metallic substance active ring or highstrenghtpiston's active ring, require in the use indeformable,
(4) containing freshwater mussel mesh frame basket 5 quality is duroplasts, whole frame basket sealing, and freshwater mussel can not drop out, and frame basket top can be opened, so that gather in the crops, change the freshwater mussel body.
(5) contain 3～4 of freshwater mussel mesh frame basket 5 dress freshwater mussels for every, hang under the lake water face with rope, the degree of depth is water body average transparency * 0.8cm.Several are contained freshwater mussel mesh frame basket 5 and purify within the water surface at need, are evenly distributed on the nylon rope 4 of engineering setting and hang.
4, supervision of construction of freshwater mussel purifying water body and results
(1) inspection engineering structure situation keeps the complete of engineering structure, and engineering damage part is in time repaired.When hazard weather such as strong wind, heavy rain, the cataclysm of lake water water level, should after prior, calamity, in time check, protect especially.
(2) freshwater mussel that grows up to of planned results is in time changed physically different or dying freshwater mussel.Making whole or most of freshwater mussel body results in general about 2 years changes.
(3) patrol once in summer, per 10～15 days of autumn; Winter, per 25～35 days of spring patrol once.Freshwater mussel peak of growing season and abnormal conditions should increase inspection number of times or inspection in time.At ordinary times whole engineering district is carried out the burst selective examination.
Need purifying water body freshwater mussel biomass calculation formula:
In the formula:
The total biomass (kg) of ∑ G freshwater mussel
The unit chlorophyll a amount of cancellation (μ g/kg.h) of freshwater mussel in each enclosure water column purification system of Rn
Maximum value among the LRn Rn
The E time (h)
a
nChlorophyll a amount (μ g/L) in the blank enclosure water column behind E
b
nBehind E, contain chlorophyll a amount in the freshwater mussel enclosure water column (μ g/L)
V
nEnclosure water column amount (L)
G freshwater mussel average only heavy (kg)
N
nThe number of elements (only) that contains freshwater mussel in the freshwater mussel enclosure water column
V needs the purifying water body water yield (m
3)
Claims (6)
1, the purification system of freshwater mussel in the lake waterhead area eutrophic water body is characterized in that purification system comprises stake, ball float, nylon rope, Sheng freshwater mussel mesh frame basket; Several stakes are distributed in the lake waterhead area and squeeze into lake 0.5～1m at the hard end, several ball floats are fixed on the nylon rope, ball float spacing 6～8m, nylon rope is fixed on the active ring, active ring is sleeved in the stake, can in stake, can move up and down with the lake water fluctuation in stage, stake is surfaced and highly should be surpassed this lake year top water-level value 0.5m, built-in appearance becomes the grid type structure in this waters with nylon rope in these stakes, several are contained freshwater mussel mesh frame basket and purify within the water surface at need, are evenly distributed on the nylon rope of system's setting and hang, and contain 3～4 of freshwater mussel mesh frame basket dress freshwater mussels for every, hang under the lake water face with rope, the degree of depth is water body average transparency * 0.8cm.
2, the purification system of freshwater mussel in the waterhead area eutrophic water body of lake according to claim 1 is characterized in that active ring adopts metallic substance active ring or highstrenghtpiston's active ring.
3, the purification system of freshwater mussel in the waterhead area eutrophic water body of lake according to claim 1 is characterized in that containing the whole frame basket sealing of freshwater mussel mesh frame basket, and frame basket top is provided with square.
4,, it is characterized in that containing freshwater mussel mesh frame basket and adopt sponge plastics frame basket or porous metal material frame basket according to the purification system of freshwater mussel in claim 1 or the 3 described lake waterhead area eutrophic water bodies.
5, the purifying method of the purification system of freshwater mussel in the lake waterhead area eutrophic water body is characterized in that in the waterhead area eutrophic water body of lake, uses the intensification setting of freshwater mussel, reduces algae bio amount and suspended substance amount:
A, decision unit of water body are provided with the freshwater mussel biomass:
(1) enclosure of in need purify waterhead area waters, lake, selecting to set up in the representative waters freshwater mussel column system of purifying waste water;
(2) to the enclosure of freshwater mussel purify waste water column system implement results of regular determination, data comparison, by calculating the screening unit amount of cancellation of freshwater mussel to chlorophyll a, suspended substance in the water body, when 18～25 ℃ of water temperatures, chlorophyll a unit's amount of cancellation is 100～400 μ g/kg.h, the amount of cancellation 60～100mg/kg.h of suspended substance unit;
(3) eliminate value according to above-mentioned (2) unit of filtering out, calculating needs to purify the total biomass that freshwater mussel is set in the waters;
In B, the lake waterhead area eutrophication water, build the purification system engineering of freshwater mussel in the waterhead area eutrophic water body of lake:
(1) select well-grown " young " freshwater mussel, " young " freshwater mussel age was 1～2 age, and selected to breed then and the cristaria plicata of the long 7-10cm of body that grows up to or the hydriopsis cumingii of the long 7-10cm of precursor in July, second, was used for the purification system engineering;
(2) the purification system engineering-built of freshwater mussel in the lake waterhead area eutrophic water body: at the built-in bamboo stake or the timber made in eutrophy waters of need purification, squeeze into lake 0.5～1m at the hard end, lead nylon rope between stake, fixed interval ball float on the rope, ball float spacing 6～8m, built-in appearance becomes the grid type structure in this waters with rope in these stakes, be fixed on the nylon rope with containing freshwater mussel mesh frame basket with containing freshwater mussel and equispaced, contain 3～4 of freshwater mussel mesh frame basket dress freshwater mussels for every, freshwater mussel is hung support under the water surface, the degree of depth is water body average transparency * 0.8cm;
(3) nylon rope is fixed on the active ring described in above-mentioned (2), and active ring is enclosed within bamboo stake or the timber, and the active ring size goes up to be enclosed within stake that to move up and down neatly be degree, and the nylon rope of hanging foster freshwater mussel can be fluctuated with the lake water fluctuation in stage by ball float;
C, the regular inspection management of the purification system engineering district enforcement of freshwater mussel in the waterhead area eutrophic water body of the lake of the described construction of above-mentioned B keep the complete of engineering structure; The freshwater mussel that planned results grow up to is replenished the corresponding biomass of engineering district freshwater mussel simultaneously with well-grown young freshwater mussel.
6, the purifying method of the purification system of freshwater mussel in the waterhead area eutrophic water body of lake according to claim 5 is characterized in that the decision unit of water body is provided with in the freshwater mussel biomass method in the lake eutrophication water body:
(1) the enclosure water column is provided with: select representative eutrophy waters that 5～6 groups of enclosure freshwater mussel purification system water columns are set in the lake waters that need purify; Every group 2～4 as parallel group; Every enclosure water column area 1～2m
2, establish and enclose water column volume 2～4m
3Cylindrical enclosure skeleton adopts reinforcing bar or the firm Tie system of circle bamboo, the skeleton outer gland sealing encloses with canvas, preferably wind with plastic tape at canvas and skeleton contact site, to prevent that canvas from being galled, the enclosure bottom peripheral edge is imbedded in the bottom mud in lake with the stone dragon and is inserted fixing with bamboo let, enclosure is suitable for reading to be opened wide, periphery exceeds the water surface 0.5～0.8m or raises out the water surface with ball float, keeps the whole testing period, and the inside and outside water body of enclosure water column is isolated to be exchanged;
Each group of whole enclosure freshwater mussel purification system water column is all fixedly gone along with sb. to guard him within setting up the bamboo frame that is fixed in the lake;
(2) setting of freshwater mussel: in the enclosure water column system, the number of elements of freshwater mussel is with the gradient setting, and freshwater mussel contains 2～3 of every packed freshwater mussels with the mesh bag that the bamboo circle struts aperture 1～2cm, dress freshwater mussel mesh bag is evenly distributed to hang at the enclosure water surface and supports below the water surface, and the degree of depth is: water body average transparency * 0.8cm;
(3) regularly extract each enclosure water column system water sample, measure the amount of chlorophyll a, suspended substance respectively and carry out qualitative, the quantitative assay of algae;
(4) value surveyed in above-mentioned (3) and the value of blank group are relatively calculated the unit amount of cancellation of freshwater mussel to chlorophyll a, suspended substance in the water body, calculate the total biomass that freshwater mussel is set with optimum value in the lake eutrophication water body that need purify.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100948927A CN100337940C (en) | 2005-10-19 | 2005-10-19 | Purifying system and method for mother of pearl in lake water-resource nutrient-enriched water body |
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| CNB2005100948927A CN100337940C (en) | 2005-10-19 | 2005-10-19 | Purifying system and method for mother of pearl in lake water-resource nutrient-enriched water body |
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| CN100337940C true CN100337940C (en) | 2007-09-19 |
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| CN102349461A (en) * | 2011-08-25 | 2012-02-15 | 上海海洋大学 | Tidal river sewage treatment and aquiculture integrated system |
| CN102907277A (en) * | 2012-11-20 | 2013-02-06 | 中国科学院昆明动物研究所 | Device for planting submerged vascular plants and floating plants in suspension manner |
| CN107223620B (en) * | 2017-08-04 | 2022-10-25 | 浙江清湖控股集团有限公司 | Water treatment system and water treatment method based on shellfish culture |
| CN108193640B (en) * | 2018-01-16 | 2023-12-01 | 中国科学院南京地理与湖泊研究所 | Suspended wave eliminating system |
| CN110275003B (en) * | 2019-05-13 | 2020-03-06 | 中国科学院南京地理与湖泊研究所 | Method for screening and repairing shellfish in water body with high suspended matter concentration |
| CN111513009A (en) * | 2020-05-08 | 2020-08-11 | 湖北工业大学 | Three-dimensional ecological culture platform of water |
| CN113213693B (en) * | 2020-12-10 | 2023-06-02 | 南京浩尔环保科技有限责任公司 | Biological food chain culture box type nutrient salt removal device for eutrophic water pollution control and aquaculture and construction method thereof |
| CN114604932B (en) * | 2022-03-22 | 2023-11-24 | 内蒙古景元泰环保科技有限公司 | Multifunctional water body purifying ball and purifying method thereof |
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