CN108569765A - A kind of method for treating water - Google Patents
A kind of method for treating water Download PDFInfo
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- CN108569765A CN108569765A CN201710132297.0A CN201710132297A CN108569765A CN 108569765 A CN108569765 A CN 108569765A CN 201710132297 A CN201710132297 A CN 201710132297A CN 108569765 A CN108569765 A CN 108569765A
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- Prior art keywords
- water
- domestication
- foodstuff
- daphnia
- daphnia magna
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 115
- 238000000034 method Methods 0.000 title claims abstract description 50
- 241001494246 Daphnia magna Species 0.000 claims description 68
- 235000013305 food Nutrition 0.000 claims description 14
- 241000238578 Daphnia Species 0.000 claims description 10
- 230000006872 improvement Effects 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 6
- 230000003716 rejuvenation Effects 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 238000012216 screening Methods 0.000 claims description 4
- 230000006641 stabilisation Effects 0.000 claims description 4
- 238000011105 stabilization Methods 0.000 claims description 4
- 241000238571 Cladocera Species 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 241000239250 Copepoda Species 0.000 claims description 2
- 230000009931 harmful effect Effects 0.000 abstract description 3
- 241000238631 Hexapoda Species 0.000 description 21
- 239000000843 powder Substances 0.000 description 17
- 241000192700 Cyanobacteria Species 0.000 description 11
- 241000235342 Saccharomycetes Species 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 241000195493 Cryptophyta Species 0.000 description 7
- 241000026010 Dendrobium candidum Species 0.000 description 7
- 241000234295 Musa Species 0.000 description 7
- 235000021015 bananas Nutrition 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000013459 approach Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 235000012907 honey Nutrition 0.000 description 5
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000009395 breeding Methods 0.000 description 4
- 230000001488 breeding effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000000855 fermentation Methods 0.000 description 4
- 230000004151 fermentation Effects 0.000 description 4
- 239000008103 glucose Substances 0.000 description 4
- 230000036541 health Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 230000004083 survival effect Effects 0.000 description 4
- 235000003143 Panax notoginseng Nutrition 0.000 description 3
- 241000180649 Panax notoginseng Species 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 3
- 230000004913 activation Effects 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 230000012010 growth Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- 241000143060 Americamysis bahia Species 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 241000192710 Microcystis aeruginosa Species 0.000 description 1
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 1
- 206010000210 abortion Diseases 0.000 description 1
- 230000005791 algae growth Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
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- 241000894007 species Species 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
Abstract
The invention belongs to field of environment protection, and in particular to a kind of method for treating water that can improve water transparency.The method described in the present invention includes the following steps：1）First abort into staying water Magna；2）Then flocculant is launched into water body again.Water transparency can be improved to 100cm or more after the h of 8h~12 in method for treating water using the present invention；And harmful effect will not be caused to aquatic ecosystem, security risk is not present.
Description
Technical field
The invention belongs to field of environment protection, and in particular to a kind of method for treating water that can improve water transparency.
Background technology
Water ecology recovery technique becomes the novel water pollution Treatment process that a kind of starting evening, development are fast instantly, although
Have been widely recognized, but Practical Project implementation in, due to heavy rain, flood etc. happen suddenly weather caused by water quality mutation,
Water transparency is decreased obviously at this time, and Underwater Optical shines worsening condition, and submerged plant photosynthesis weakens, the aquatic organism group of structure
Normal growth can not be continued by falling, and water ecology repairing effect is caused long-acting cannot to keep.Therefore, it is aquatic to improve water transparency
Main means in state emergency maintenance.
The method of traditional raising water transparency has：1. medicament is added, to kill phytoplankton (such as algae in water body
Class) etc.；2. flocculant is added, to settle the suspended matter in water body；3. microbial bacterial agent is added, to remove the solubility in water body
Organic matter.
In the emergency maintenance of Water Ecological Recovery, these three methods can improve water transparency to a certain extent,
But existing defects：Medicament and flocculant add may in water body submerged plant or aquatic animal there are direct or latent
Toxic action.Adding for microbial bacterial agent may there are direct or potentially hazardous, neighbouring residents can also carry on a shoulder pole to water body
Heart safety issue.
Therefore, in the emergency maintenance of Water Ecological Recovery, it may be considered that the combination of several method, such as reasonable consideration flocculant
Dosage and add the frequency, while improving water transparency, ensure the safe, long-acting of aquatic ecosystem, stable operation.
Invention content
In order to overcome the problems of in the prior art, the purpose of the present invention is to provide one kind, can to improve water body saturating
The method for treating water of lightness.
To achieve the goals above and other related purposes, the present invention adopt the following technical scheme that：
The first aspect of the present invention provides a kind of method for treating water, includes the following steps：
1) first abort into staying water Magna；2) flocculant and then is again launched into water body.
Preferably, the daphnia belongs to cladocera or Copepods.
Preferably, the daphnia is Daphnia magna.
Preferably, the Daphnia magna adult average individual size is in 5.0mm or more.It is further preferred that the Daphnia magna
Adult average individual size is between 5.0~6.5mm.The food particle of food maximum gauge about 80-160um can be filtered.
The acquisition pattern of the Daphnia magna can be obtained by commercially available approach.Also it can be obtained by taming approach.The present invention
There is no particular/special requirement for access approaches, as long as the gained Daphnia magna adult average individual size is in 5.0mm or more.
In some embodiments of the invention, illustrating the Daphnia magna can be obtained by taming.In these embodiments,
The Daphnia magna that domestication obtains is referred to as algivorous insect.
In these embodiments, Daphnia magna acclimation method includes the following steps：
(1) domestication foodstuff is fed：Daphnia magna is put into domestication water, feeds domestication foodstuff daily；
(2) it screens：It is tamed in the Daphnia magna after foodstuff is fed from step (1) and selects sociales, the sociales are made a living
Long situation is excellent and individual relatively large Daphnia magna；
(3) the multiple circulating repetition of Daphnia magna selected through step (2) is subjected to domestication food using step (1) and step (2)
Material feeds and screens again, is at least 60 days until feeding the domestication total number of days of foodstuff；
(4) stablize：The Daphnia magna that step (3) is obtained is launched in specific body of water 50 days or more, feeds domestication foodstuff daily,
To carry out stabilization and the rejuvenation of domestication and improvement characteristic.
In step (1), the water body in domestication pool is general water body.The control of domestication pool water temperature is the temperature suitable for Daphnia magna survival
Degree, Daphnia magna are generally 4 DEG C -30 DEG C suitable for the temperature range of survival.Preferably 15-26 DEG C.
In step (1), the density maximum of Daphnia magna domestication is up to 500,000/m3, it is converted into and carries worm amount 2.5kg/m3.It is large-scale
Magna throw-in density is low can't to be influenced to tame effect, it is contemplated that economic benefit is generally controllable to ten thousand/m of 30-403.Domestication food
Each injected volume of material is generally：20-40g/ ㎡, feed 3-5 times daily.Feeding time is 7-15 days.
Preferably, the Daphnia magna of the initial selection and breeding of step (1) is that the individual that length is 2-4mm is big, great-hearted health is wild
Daphnia magna.
In step (2), the sociales upgrowth situation is good, cyanobacteria water body is adaptable, it is individual generally 3-6mm it
Between.Under normal circumstances, the Daphnia magna for the 20-40% for accounting for Daphnia magna total quantity to be selected can be selected as sociales.
In step (3), the cycle total degree of screening feed generally at least at 5 times or more using step (1)-(2).
In step (4), it is ten thousand/m of 30-50 that the Daphnia magna, which launches concentration range,3, preferably ten thousand/m of 30-403.It is described
Specific body of water refers to pH value between 5-10, and dissolved oxygen is in 2-8mg/l, the water body that temperature range is 4 DEG C to 30 DEG C.Tame foodstuff
Injected volume maintain each 20-40g/ ㎡, feed 3-5 times daily.The stable time can be 50-60 days at 50 days or more.
Preferably, the throw-in density of daphnia is 50~100/L water.
Preferably, it aborts into staying water and Magna 10~30 days and then launches flocculant into water body.
Preferably, the flocculant is selected from aluminium polychloride.The aluminium polychloride (abbreviation PAC) can pass through way purchased in market
Diameter obtains.The aluminium polychloride is solid, wherein aluminium oxide (AL2O3) content >=29%, basicity (B) be 40~90%,
Content≤1% of water not tolerant, pH value (1% aqueous solution) are 3.5~5.0.
Preferably, the mass ratio of the dispensing quality of flocculant and staying water is 1：(10~100).
Compared with prior art, the present invention has the advantages that：
(1) water transparency can be improved to 100cm or more after 8h~12h in method for treating water using the present invention；
(2) daphnia employed in method for treating water of the invention can be with the blue-green alge in water body, detritus, suspended matter
Grain, harmful mushroom etc. are used as main food source, can be eaten daily several times in the algae of own vol, be repaiied in Ecology
During multiple and ecosystem management, Measures of Algae in Water Body etc. can be made significantly to decline, improve water transparency rapidly；The daphnia
Ingest digestion algae after, faintly acid excreta can be generated, effectively reduce water pH value, in turn again can inhibit algae growth and
Breeding；The daphnia is worm for fishing, it will is ingested by the fishes and shrimps spiral shell etc. in water body, realizes eutrophication water recycling, do not deposit
In security risk.
(3) dosage of flocculant will not cause harmful effect to aquatic ecosystem in method for treating water of the invention.
Specific implementation mode
Heretofore described algivorous insect belongs to a kind of Daphnia magna, can both be obtained by commercially available approach, can also be by taming and dociling
Change and obtains.The present invention is not particularly limited the acquisition pattern of algivorous insect.
For example, the patent of invention application No. is 2015101455719 may be used《A kind of acclimation method of Daphnia magna and its
Using》In acclimation obtain Daphnia magna (algivorous insect).But not and it is limited to this acquisition pattern.
Its invent design be：Daphnia magna is launched into domestication pool, for a period of time using specific domestication foodstuff culture,
Sociales are taken to carry out repeating domestication, purification, rejuvenation, finally by Daphnia magna domestication as the natural enemy of cyanobacteria.The Daphnia magna of the present invention
Domestication and improvement has three layers of meaning：To digesting and assimilating the improvement of cyanobacteria enteron aisle；To cyanobacteria agglomerate bore improvement of ingesting；Salt water population is stablized
Property fresh water improvement.Through domestication, Daphnia magna (algivorous insect) adult average individual size of acquisition is between 5.0~6.5mm, maximum
The long 6.7mm of body body, weight limit can filter the food particle of food maximum gauge about 80-160um up to 8.8mg.
Specifically, the Daphnia magna (algivorous insect) is obtained by following acclimation method, the described method comprises the following steps：
(5) domestication foodstuff is fed：Daphnia magna is put into domestication water, feeds domestication foodstuff daily；
(6) it screens：It is tamed in the Daphnia magna after foodstuff is fed from step (1) and selects sociales, the sociales are made a living
Long situation is excellent and individual relatively large Daphnia magna.
(7) the multiple circulating repetition of Daphnia magna selected through step (2) is subjected to domestication food using step (1) and step (2)
Material feeds and screens again, is at least 60 days until feeding the domestication total number of days of foodstuff；
(8) stablize：The Daphnia magna that step (3) is obtained is launched in specific body of water 50 days or more, feeds domestication foodstuff daily,
To carry out stabilization and the rejuvenation of domestication and improvement characteristic.
In step (1), the water body in domestication pool is general water body.The control of domestication pool water temperature is the temperature suitable for Daphnia magna survival
Degree, Daphnia magna are generally 4 DEG C -30 DEG C suitable for the temperature range of survival.Preferably 15-26 DEG C.
In step (1), the density maximum of Daphnia magna domestication is up to 500,000/m3, it is converted into and carries worm amount 2.5kg/m3.It is large-scale
Magna throw-in density is low can't to be influenced to tame effect, it is contemplated that economic benefit is generally controllable to ten thousand/m of 30-403.Domestication food
Each injected volume of material is generally：20-40g/ ㎡, feed 3-5 times daily.Feeding time is 7-15 days.
Preferably, the Daphnia magna of the initial selection and breeding of step (1) is that the individual that length is 2-4mm is big, great-hearted health is wild
Daphnia magna.
In step (2), the sociales upgrowth situation is good, cyanobacteria water body is adaptable, it is individual generally 3-6mm it
Between.Under normal circumstances, the Daphnia magna for the 20-40% for accounting for Daphnia magna total quantity to be selected can be selected as sociales.
In step (3), the cycle total degree of screening feed generally at least at 5 times or more using step (1)-(2).
In step (4), it is ten thousand/m of 30-50 that the Daphnia magna, which launches concentration range,3, preferably ten thousand/m of 30-403.It is described
Specific body of water refers to pH value between 5-10, and dissolved oxygen is in 2-8mg/l, the water body that temperature range is 4 DEG C to 30 DEG C.Tame foodstuff
Injected volume maintain each 20-40g/ ㎡, feed 3-5 times daily.The stable time can be 50-60 days at 50 days or more.
The material composition that domestication foodstuff for taming Daphnia magna (algivorous insect) includes following parts by weight：
Preferably, the cyanobacteria is microcystic aeruginosa (Microcystis aeruginosa).
The honey does not have particular requirement to kind, and various conventional honey can be used.
The preparation method of the domestication foodstuff includes the following steps：
1) fresh bananas skin, the fresh stem of dendrobium candidum are broken into starchiness；
2) by saccharomycete dry powder activating；
3) according to the ratio, by the saccharomycete of activation, break into starchy fresh bananas skin, the fresh stem of dendrobium candidum and other raw materials and mix
Even, fermentation, which obtains, under conditions of suitable yeast bacterium is fermented tames foodstuff.
In step 2), the saccharomycete dry powder activating is the prior art, and conventional method activation can be used, such as using glucose sugar
Water activates.As present example is specifically enumerated, glucose 150 grams and 35 DEG C pure water, 10 liters of work can be used per 450g saccharomycete dry powder
Change.
Preferably, in step 3), the fermentation condition is：It is sealed by fermentation 1-10 hours at 35-38 DEG C.
Using the acclimation method, the big individual Daphnia magna that can stablize growth in the wild can get.It is in water body
Algae is its main food source, daily can Annexation food volumes be equivalent to the algae several times in itself, and by other digestion decomposition
As water and inorganic salts, so that the algae in water body is greatly reduced, lose population advantage.
Meanwhile the Daphnia magna (algivorous insect) of domestication is ingested after digesting cyanobacteria, can be generated faintly acid excreta, effectively be reduced water
Body pH value can inhibit the growth and breeding of cyanobacteria again in turn, promotes the health of water ecosystem and stablizes.
It is a kind of in addition, since the Daphnia magna (algivorous insect) after domestication itself is as a kind of large-scale cladocera zooplankter
Foreign term equivalent risk is not present in dispersed species.
Before further describing the specific embodiments of the present invention, it should be appreciated that protection scope of the present invention is not limited to down
State specific specific embodiment；It is also understood that the term used in the embodiment of the present invention is specific specific in order to describe
Embodiment, the protection domain being not intended to be limiting of the invention.The test method of actual conditions is not specified in the following example,
Usually according to normal condition, or according to the condition proposed by each manufacturer.
When embodiment provides numberical range, it should be appreciated that except non-present invention is otherwise noted, two ends of each numberical range
Any one numerical value can be selected between point and two endpoints.Unless otherwise defined, in the present invention all technologies for using and
Scientific terminology is identical as the normally understood meaning of those skilled in the art of the present technique.Except used in embodiment specific method, equipment,
Outside material, the record according to those skilled in the art to the grasp of the prior art and the present invention can also use and this
Any method, equipment and the material of the similar or equivalent prior art of method, equipment described in inventive embodiments, material come real
The existing present invention.
Unless otherwise stated, disclosed in this invention experimental method, detection method, preparation method be all made of this technology neck
Domain conventional technique.
Embodiment 1
By taking landscape lake (the Nanjing clear water pool) as an example, 3.3 ten thousand m of area2, mean depth 1.5m or so.Into this landscape lake
Algivorous insect and flocculant are added, the promotion situation of its water transparency is investigated, the transparency of water body is 40~50cm left before launching
Right (after heavy rain) is equipped with the surge machine of 3 1.5kw in water body.The algivorous insect is obtained by taming.The flocculant is selected
Aluminium polychloride (abbreviation PAC) can be obtained by approach purchased in market.The aluminium polychloride is solid, wherein aluminium oxide (AL2O3)
Content >=29%, basicity (B) be 40~90%, water not tolerant≤1%, pH value (1% aqueous solution) be 3.5~5.0.This hair
Water transparency in bright is characterized with the depth of the observable water body of normal naked eye.
(1) acclimation method of algivorous insect includes the following steps：
1. taming the preparation of foodstuff
1.1 domestication foodstuff composition of raw materials
Formula one：
3.0 kilograms of cyanobacteria 1. (microcystic aeruginosa) dry powder；
2. saccharomycete dry powder：450 grams；
3. honey：300 grams；
4. fresh bananas skin：2 kilograms；
5. Rhizoma Gastrodiae dry powder：30 grams
6. Radix Notoginseng dry powder：60 grams
7. the fresh stem of dendrobium candidum：300 grams；
8. water：20 kilograms
Formula two：
2.9 kilograms of cyanobacteria 1. (microcystic aeruginosa) dry powder；
2. saccharomycete dry powder：500 grams；
3. honey：250 grams；
4. fresh bananas skin：1.9 kilogram；
5. Rhizoma Gastrodiae dry powder：35 grams
6. Radix Notoginseng dry powder：55 grams
7. the fresh stem of dendrobium candidum：250 grams；
8. water：22 kilograms
Formula three：
3.1 kilograms of cyanobacteria 1. (microcystic aeruginosa) dry powder；
2. saccharomycete dry powder：400 grams；
3. honey：350 grams；
4. fresh bananas skin：2.1 kilogram；
5. Rhizoma Gastrodiae dry powder：25 grams
6. Radix Notoginseng dry powder：65 grams
7. the fresh stem of dendrobium candidum：350 grams；
8. water：18 kilograms
The preparation of 1.2 domestication foodstuffs：
1) fresh bananas skin, the fresh stem of dendrobium candidum are broken into starchiness；
2) by saccharomycete dry powder activating：Glucose aqueous solution work made of 35 DEG C of 10 liters of pure water is dissolved in glucose for 150 grams
Change saccharomycete dry powder；
3) according to the ratio, by the saccharomycete of activation, break into starchy fresh bananas skin, the fresh stem of dendrobium candidum and other raw materials and mix
It is even, it is sealed by fermentation at 35 DEG C and obtains within 8 hours domestication foodstuff.
2. algivorous insect is tamed
2.1 Daphnia magnas to be tamed：Big, the great-hearted wild Daphnia magna of health of individual that length is 2-4mm, maximum adult
The long 4.0mm of body.
2.2 domestication foodstuffs：By preparing in 1.2
2.3 domestication steps：
(1) domestication foodstuff is fed：Daphnia magna is put into domestication pool, feeds domestication foodstuff daily；
Domestication pool water body：General water body
The throw-in density of Daphnia magna is：Ten thousand/L of 30-50
The injected volume of domestication foodstuff is generally：Each 20-40g/ ㎡, feed 3-5 times daily
Domestication pool water temperature is room temperature, generally can be in the range of 4-31 DEG C, without especially processing.
Feeding time is 7-15 days.
(2) it screens：It tames to select to select in the Daphnia magna after foodstuff is fed from step (1) and accounts for Daphnia magna total quantity to be selected
20-40% Daphnia magna as sociales, the sociales are made a living, and long situation is excellent and individual relatively large Daphnia magna.
(3) the multiple circulating repetition of Daphnia magna selected through step (2) is subjected to domestication food using step (1) and step (2)
Material feeds and screens again, until feeding the domestication total number of days of foodstuff up to 60 days；
Step (1)-(2) are used feed the cycle total degree of screening as 5 times.
(4) stablize：The Daphnia magna that step (3) is obtained is launched in specific body of water 50-60 days, feeds domestication foodstuff daily,
To carry out stabilization and the rejuvenation of domestication and improvement characteristic.
Daphnia magna launches concentration：Ten thousand/m of 30-403；
Water body：PH value is between 5-10, and dissolved oxygen is in 2-8mg/l, the water body that temperature range is 4 DEG C to 31 DEG C.
Tame the injected volume of foodstuff：Each 20-40g/ ㎡, feed 3-5 times daily.
As a result, three kinds of domestication foodstuff formula domestication results are not significantly different.
The Daphnia magna adult individuals that domestication obtains are average individual size between 5.0~6.5mm, and maximum individual body is long
6.7mm, weight limit is up to 8.8mg.
(2) next, water process is carried out, specifically, the method for the present invention includes following steps：
(1) algivorous insect is first launched in staying water, throw-in density is 50~100/L water, and size is medium head
(individual lengths are 5~6mm)；
Launch flocculant PAC after (2) 15 days into water body again, the injected volume of flocculant be water medicine mass ratio be (10~
100):1, it is equably splashed in the entire water surface, and surge machine is kept to open, lake water ceaselessly stirs, after continuing 3 hours
Stop, starting flocculation sediment later；
Uniformly splashing for flocculant, Specific amounts and the same step of method (2) are carried out after (3) 2 hours again.
After the above method is handled, water transparency is effectively improved after 8h~12h, specific variation such as the following table 1
It is shown.
The situation of change of the water transparency before and after the processing of table 1
Comparative example 1
It is handled in the comparative example only with algivorous insect or only with flocculant to water body, other methods and item
Part is same as Example 1.The results are shown in Table 2：
The situation of change of the water transparency before and after the processing of table 2
In conclusion the method provided by the present invention by algivorous insect and flocculant joint for water process, not only than list
Solely water process is carried out using algivorous insect or exclusive use flocculant to be intended to more preferably the transparency improvement effect of water body.Also,
Method provided by the present invention by algivorous insect and flocculant joint for water process makes compared with exclusive use algivorous insect or individually
The summation of water treatment efficiency is carried out with flocculant will also get well.That is, provided by the present invention join algivorous insect and flocculant
The method in water process is shared, the synergistic effect between algivorous insect and flocculant can be played.Effectively overcome in the prior art
Various shortcoming and have height utility value, can be used for Water Ecological Recovery emergency processing.
The above, only presently preferred embodiments of the present invention, not to the present invention in any form with substantial limitation,
It should be pointed out that for those skilled in the art, under the premise of not departing from the method for the present invention, can also make
Several improvement and supplement, these are improved and supplement also should be regarded as protection scope of the present invention.All those skilled in the art,
Without departing from the spirit and scope of the present invention, when made using disclosed above technology contents it is a little more
Dynamic, modification and the equivalent variations developed, are the equivalent embodiment of the present invention；Meanwhile all substantial technologicals pair according to the present invention
The variation, modification and evolution of any equivalent variations made by above-described embodiment, still fall within the range of technical scheme of the present invention
It is interior.
Claims (10)
1. a kind of method for treating water, includes the following steps：1) first abort into staying water Magna；2) and then again into water body
Launch flocculant.
2. according to the method described in claim 1, it is characterized in that, the daphnia belongs to cladocera or Copepods, it is preferable that institute
Daphnia adult average individual size is stated in 5.0mm or more.
3. wanting the method described in 1 according to right, which is characterized in that the throw-in density of daphnia is 50~100/L water.
4. wanting the method described in 1 according to right, which is characterized in that abort into staying water Magna 10~30 days and then
Flocculant is launched into water body.
5. wanting the method described in 1 according to right, which is characterized in that the flocculant is selected from aluminium polychloride.
6. wanting the method described in 1 according to right, which is characterized in that the dispensing quality of flocculant and the mass ratio of staying water are
1：(10~100).
7. wanting the method described in 1 according to right, which is characterized in that the daphnia is obtained by taming, acclimation method, including following
Step：
(1) domestication foodstuff is fed：Daphnia magna is put into domestication water, feeds domestication foodstuff daily；
(2) it screens：It is tamed in the Daphnia magna after foodstuff is fed from step (1) and selects sociales, the sociales are made a living elongated
Gesture is excellent and individual relatively large Daphnia magna；
(3) the multiple circulating repetition of Daphnia magna selected through step (2) domestication foodstuff is carried out using step (1) and step (2) to throw
It feeds and screens again, be at least 60 days until feeding the domestication total number of days of foodstuff；
(4) stablize：The Daphnia magna that step (3) is obtained is launched in specific body of water 50 days or more, feeds domestication foodstuff daily, with into
The stabilization of row domestication and improvement characteristic and rejuvenation.
8. the method according to the description of claim 7 is characterized in that it is described domestication foodstuff include following parts by weight raw material at
Point：
9. the method according to the description of claim 7 is characterized in that in step (1), the density of Daphnia magna domestication is up to 500,000
A/m3；Taming foodstuff injected volume is：Each 20-40g/ ㎡, feed 3-5 times daily, and Feeding time is 7-15 days.
10. the method according to the description of claim 7 is characterized in that further including any one of following characteristics or multinomial：
A) in step (2), the Daphnia magna for the 20-40% for accounting for Daphnia magna total quantity to be selected is selected as sociales；
B) in step (3), the cycle total degree of screening feed at least at 5 times or more using step (1) and step (2)；
C) in step (4), it is ten thousand/m of 30-50 that the Daphnia magna, which launches concentration range,3；The specific body of water refers to pH value in 5-
Between 10, dissolved oxygen is in 2-8mg/l, the water body that temperature range is 4 DEG C to 30 DEG C；The injected volume for taming foodstuff maintains each 20-
40g/ ㎡, feed 3-5 times daily；
D) the Daphnia magna adult individuals mean size obtained after taming can filter food maximum gauge 80- between 5.0~6.5mm
The food particle of 160um.
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| CN113248078A (en) * | 2021-04-18 | 2021-08-13 | 重庆大学 | Method for treating eutrophic water body by combining low-dose flocculating agent with daphnia magna |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104787893A (en) * | 2015-03-31 | 2015-07-22 | 上海太和水环境科技发展有限公司 | Daphnia magna domestication method and application thereof |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104787893A (en) * | 2015-03-31 | 2015-07-22 | 上海太和水环境科技发展有限公司 | Daphnia magna domestication method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113248078A (en) * | 2021-04-18 | 2021-08-13 | 重庆大学 | Method for treating eutrophic water body by combining low-dose flocculating agent with daphnia magna |
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