CN110316785A - Water remediation agent for controlling cyanobacterial bloom and preparation method thereof and eutrophic water body repairing method - Google Patents
Water remediation agent for controlling cyanobacterial bloom and preparation method thereof and eutrophic water body repairing method Download PDFInfo
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- CN110316785A CN110316785A CN201910658772.7A CN201910658772A CN110316785A CN 110316785 A CN110316785 A CN 110316785A CN 201910658772 A CN201910658772 A CN 201910658772A CN 110316785 A CN110316785 A CN 110316785A
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- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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- 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
- C02F3/322—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/20—Prevention of biofouling
Abstract
The present invention relates to a kind of water remediation agent for controlling cyanobacterial bloom and preparation method thereof and eutrophic water body repairing method.It is above-mentioned for control the water remediation agent of cyanobacterial bloom to include diatom promotor and blue algae inhibitor, diatom promotor includes nanometer titanium dioxide silicon powder, and blue algae inhibitor includes Cu2O@SiO2.Above-mentioned water remediation agent is able to suppress the growth of cyanobacteria and promotes the growth of diatom, so that the eutrophication water for having broken out cyanobacterial bloom be enable to repair.
Description
Technical field
The present invention relates to water remediation field, more particularly to a kind of water remediation agent for controlling cyanobacterial bloom and its
Preparation method and eutrophic water body repairing method.
Background technique
With the development of economy, urban population is continuously increased, and industrial wastewater, the discharge amount of sanitary sewage are growing, greatly
It measures nutrients and flows into natural water, which results in the nutriment surpluses in environment to form water eutrophication.By nitrogen and phosphorus element
Caused water eutrophication will lead to the extensive of cyanobacteria and break out to form cyanobacterial bloom.The mass propagation of cyanobacteria can disappear in environment
Dissolved oxygen, reduction water body light transmittance in water consumption, the existence for threatening aquatic animals and plants.The cyanobacterial bloom of water head site can block filter
Pond increases water purification cost, the operation for seriously affecting water factory and water supply security.Meanwhile cyanobacteria can also discharge algae toxin, threaten aquatic
The health of biology and the mankind.
Diatom recovery technique is a kind of new eutrophication water body biological restorative procedure, by promoting the beneficial algae in fresh water
The growth of class --- diatom achievees the effect that administer water body to absorb the nitrogen phosphorus in water body to inhibit the growth of harmful cyanobacteria.But
Currently used water remediation agent is only capable of promoting growth of diatom algae in the water body for not yet breaking out cyanobacterial bloom, however for cruelly
In the eutrophication water for sending out cyanobacterial bloom, traditional water remediation agent can not achieve the reparation to water body.
Summary of the invention
Based on this, it is necessary to which the water remediation agent for breaking out the water remediation of cyanobacterial bloom can be made by providing one kind.
In addition, also providing a kind of preparation method for controlling the water remediation agent of cyanobacterial bloom and eutrophication water is repaired
Compound method.
It is a kind of for controlling the water remediation agent of cyanobacterial bloom, including diatom promotor and blue algae inhibitor, the diatom
Promotor includes nanometer titanium dioxide silicon powder, and the blue algae inhibitor includes Cu2O@SiO2。
The nanometer titanium dioxide silicon powder in the diatom promotor and the cyanobacteria press down in one of the embodiments,
Cu in preparation2O@SiO2Mass ratio be 200: 1.
The Cu in one of the embodiments,2O@SiO2In Cu2The load capacity of O is 3%~10%.
It further include in one of the embodiments, microelement in the diatom promotor, the microelement is selected from iron
At least one of element, manganese element, Zn-ef ficiency and cobalt element.
The water remediation agent further includes water in one of the embodiments, the nanometer in the diatom promotor
The mass volume ratio of fine silica powder and the water is 2g: 100mL, the Cu in the blue algae inhibitor2O@SiO2With institute
The mass volume ratio for stating water is 0.01g: 100mL.
It is a kind of for controlling the preparation method of the water remediation agent of cyanobacterial bloom, include the following steps: diatom promotor
It is mixed with blue algae inhibitor, obtains water remediation agent, wherein the diatom promotor includes nanometer titanium dioxide silicon powder, described
Blue algae inhibitor includes Cu2O@SiO2。
The water remediation agent further includes water in one of the embodiments, further includes micro in the diatom promotor
Element, the microelement is selected from least one of ferro element, manganese element, Zn-ef ficiency and cobalt element, described by nano-silica
The step of SiClx is mixed with silicon dioxide carried cuprous oxide include:
The nanometer titanium dioxide silicon powder is dispersed in the water, silica dispersions are obtained；
The microelement is soluble in water, obtain trace element solution；
The trace element solution is mixed with the silica dispersions, obtains diatom promotor；
The silicon dioxide carried cuprous oxide is dispersed in water, cuprous oxide dispersion liquid is obtained；
The cuprous oxide dispersion liquid is mixed with the diatom promotor.
A kind of eutrophic water body repairing method includes the following steps: the water remediation agent that will be used to control cyanobacterial bloom
It is added in water body to be repaired, wherein the water remediation agent includes diatom promotor and blue algae inhibitor, and the diatom promotes
Agent includes nanometer titanium dioxide silicon powder, and the blue algae inhibitor includes Cu2O@SiO2。
The water remediation agent further includes water in one of the embodiments, the nanometer in the diatom promotor
The mass volume ratio of fine silica powder and the water is 2g: 100mL, the Cu in the blue algae inhibitor2O@SiO2With institute
The mass volume ratio for stating water is 0.01g: 100mL, and the water remediation agent that will be used to control cyanobacterial bloom is added to be repaired
It is to be added in the to be repaired water body at 1: 100 that step in water body includes: by the water remediation agent by volume.
The water remediation agent that will be used to control cyanobacterial bloom is added to water body to be repaired in one of the embodiments,
In step include:
The water remediation agent is dispersed in water, water body dispersion liquid is obtained, diatom described in the water body dispersion liquid promotees
Mass concentration into the nanometer titanium dioxide silicon powder in agent is 20g/L, the Cu in the blue algae inhibitor2O@SiO2
Mass concentration be 0.1g/L；
It is by volume to be added in the to be repaired water body at 1: 100 by the water body dispersion liquid.
The nanometer titanium dioxide silicon powder in diatom promotor in above-mentioned water remediation agent can be dispersed in water, and be diatom
Growth sufficient element silicon is provided.Cu in blue algae inhibitor2O@SiO2Cyanobacteria can be adsorbed and degraded under solar radiation blue
Algae, and Cu2O@SiO2In silica can also provide silicon source, therefore, Cu for the growth of diatom2O@SiO2It will not influence silicon
The growth of algae.Above-mentioned water remediation agent can promote the growth of diatom and remove cyanobacteria, and diatom belongs to beneficial algae, can inhale
Nitrogen, phosphorus in receipts water body is to flourish, to make eutrophication water reparation.Therefore above-mentioned water remediation agent can remove
Cyanobacteria and the growth for promoting diatom, so that the eutrophication water for having broken out cyanobacterial bloom be enable to repair.
Detailed description of the invention
Fig. 1 is the variation diagram of each algae bio amount in the lake water of control group；
Fig. 2 is the variation diagram of each algae bio amount in the lake water of example 1 group；
The variation diagram of each algae bio amount in the lake water that Fig. 3 is 3 groups of embodiment；
The variation diagram of each algae bio amount in the lake water that Fig. 4 is 4 groups of embodiment.
Specific embodiment
To facilitate the understanding of the present invention, below in conjunction with specific embodiment to invention is more fully described.Tool
Preferred embodiment of the invention is given in body embodiment.But the invention can be realized in many different forms,
It is not limited to the examples described herein.On the contrary, purpose of providing these embodiments is makes to the disclosure
Understanding it is more thorough and comprehensive.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
Body embodiment purpose, it is not intended that in limitation the present invention.
It should be noted that during preparing water remediation agent herein, the water being previously mentioned or so-and-so solvent
Aqueous solution, " water " therein refers to using various water treatment technologies, as much as possible removing suspended matter, colloid and inorganic sun from
After the impurities in water such as son, anion, obtained deionized water can also be substituted with high purity water.
Herein, Cu2O@SiO2Indicate the cuprous oxide of nanometer titanium dioxide silicon powder load.Load capacity refers to nano-silica
The mass ratio of cuprous oxide and nanometer titanium dioxide silicon powder in the cuprous oxide of SiClx micro mist load.
The water remediation agent for being used to control cyanobacterial bloom of one embodiment, including diatom promotor and blue algae inhibitor,
Diatom promotor includes nanometer titanium dioxide silicon powder, and blue algae inhibitor includes Cu2O@SiO2。
Wherein, the nanometer titanium dioxide silicon powder in diatom promotor can be dispersed in water, and provided and filled for the growth of diatom
The element silicon of foot.
Specifically, Cu2O@SiO2In Cu2The load capacity of O is 3%~10%.Further, Cu2O@SiO2In Cu2O
Load capacity be 5%.Cuprous oxide can generate the hydroxyl of strong oxidizing property certainly as a kind of photochemical catalyst under excited by visible light
By base to oxidative degradation frustule.But simple cuprous oxide is for high there is toxicity in water body and photocatalysis effect to be poor
The problem of.Therefore, in present embodiment, by cuprous oxide with it is carrier loaded.And the excellent adsorption of nanometer titanium dioxide silicon powder, and
Nanometer titanium dioxide silicon powder can also provide required element silicon for the growth and breeding of diatom, therefore, in present embodiment
In, on the one hand inhibit the growth of cyanobacteria using the cuprous oxide of nanometer titanium dioxide silicon powder load, or even kill cyanobacteria, another party
Face has no effect on the growth of diatom.
In one of the embodiments, in the nanometer titanium dioxide silicon powder in diatom promotor and blue algae inhibitor
Cu2O@SiO2Mass ratio be 200: 1.Under aforementioned proportion, water remediation agent is able to suppress cyanobacteria or even kills cyanobacteria, and promotees
Into the mass propagation of diatom.
It in the present embodiment, further include microelement in diatom promotor.Microelement be selected from ferro element, manganese element,
At least one of Zn-ef ficiency and cobalt element.Specifically, ferro element, manganese element, Zn-ef ficiency and cobalt element are with the shape of compound
Formula is added in water remediation agent.Specifically, ferro element is added in water remediation agent in the form of iron chloride.Manganese element is with chlorine
Change the form of manganese, Zn-ef ficiency in the form of zinc chloride, cobalt element adds in water remediation agent in the form of cobalt chloride.It can manage
Solution, in other embodiments, ferro element, manganese element, Zn-ef ficiency and cobalt element can also be in the form of other water soluble compounds
Addition is in water remediation agent.
It in one of the embodiments, include ferro element, manganese element, Zn-ef ficiency and cobalt element in diatom promotor.Iron member
Element, manganese element, Zn-ef ficiency and cobalt element mass ratio be 40: 10: 5: 1.Above-mentioned ferro element, manganese element, Zn-ef ficiency and cobalt element
Microelement can be provided for the growth of diatom, to be conducive to the growth and breeding of diatom.
Further, the mass ratio of the ferro element in diatom promotor and the nanometer titanium dioxide silicon powder in diatom promotor
It is 1: 50.
Above-mentioned nanometer titanium dioxide silicon powder and ferro element, manganese element, Zn-ef ficiency and cobalt element etc. can match jointly is combined into silicon
The growth of algae provides nutriment, to promote the growth and breeding of diatom, but cyanobacteria can not absorb above-mentioned nutriment.
In some embodiments, above-mentioned water remediation agent can be pulverulence.Powdered water remediation agent is using
When, first water body dispersing agent is dispersed in water, is made into certain density dispersion liquid, is then added to water body to be repaired in proportion again
In.
In some embodiments, water remediation agent can also be liquid condition.Water remediation agent further includes water.Diatom promotes
The mass volume ratio of nanometer titanium dioxide silicon powder and water in agent is 2g: 100mL, the Cu in blue algae inhibitor2O@SiO2With water
Mass volume ratio is 0.01g: 100mL.
Above-mentioned water remediation agent is that liquid condition can be added directly into water body to be repaired when being used for water remediation.
The above-mentioned water remediation agent for controlling cyanobacterial bloom has at least the following advantages:
(1) the nanometer titanium dioxide silicon powder in above-mentioned water remediation agent can provide element silicon, source of iron for the growth of diatom
Nutriment can be provided for the growth of diatom, to promote the growth of diatom.Silicon dioxide carried cuprous oxide can lead to
Photocatalysis degradation cyanobacteria is crossed, and has no effect on the growth of diatom.
(2) above-mentioned water remediation agent is able to suppress the growth of cyanobacteria in water body, promotes the growth of prebiotic algae diatom, and diatom
The nitrogen phosphorus substance in water body can be absorbed, diatom absorbs the nitrogen phosphorus in water body and flourish, then by protozoan, fishes and shrimps
Equal aquatic animals ingest.Finally, for people by catching fish and shrimp, nitrogen phosphorus just is removed eutrophication in the form of fishes and shrimps protein
Water body.
(3) raw material of above-mentioned water remediation agent is cheap and easy to get.
The preparation method of the water remediation agent for controlling cyanobacterial bloom of one embodiment, includes the following steps: silicon
Algae promotor is mixed with blue algae inhibitor, obtains the water remediation agent for controlling cyanobacterial bloom, wherein diatom promotor includes
Nanometer titanium dioxide silicon powder, blue algae inhibitor include Cu2O@SiO2。
Specifically, Cu2O@SiO2In Cu2The load capacity of O is 3%~10%.Further, Cu2O@SiO2In Cu2O
Load capacity be 5%.The Cu in nanometer titanium dioxide silicon powder and blue algae inhibitor in diatom promotor2O@SiO2Mass ratio
It is 200: 1.
It in the present embodiment, further include microelement in diatom promotor.Microelement be selected from ferro element, manganese element,
At least one of Zn-ef ficiency and cobalt element.
In some embodiments, water remediation agent is pulverulence.
In further embodiments, water remediation agent is liquid condition.The diatom promotor that will receive is mixed with blue algae inhibitor
The step of in, further include the steps that mixing with water.Specifically, in the step of diatom promotor that will receive is mixed with blue algae inhibitor,
The diatom promotor that will can first receive is mixed with blue algae inhibitor, then is mixed with water, can also receive diatom promotor and blue green bloom
After agent is mixed with water respectively, remix.
Water remediation agent further includes water in one of the embodiments, further includes microelement in diatom promotor, micro
Element is selected from least one of ferro element, manganese element, Zn-ef ficiency and cobalt element, and the diatom promotor that will receive is mixed with blue algae inhibitor
The step of conjunction includes:
Nanometer titanium dioxide silicon powder is dispersed in water, silica dispersions are obtained；
Microelement is soluble in water, obtain trace element solution；
Trace element solution is mixed with silica dispersions, obtains diatom promotor；
Silicon dioxide carried cuprous oxide is dispersed in water, cuprous oxide dispersion liquid is obtained；
Cuprous oxide dispersion liquid is mixed with diatom promotor.
In the present embodiment, the preparation process of silicon dioxide carried cuprous oxide is as follows:
By deionized water, dehydrated alcohol and CuCl2Solution is added in beaker and obtains light blue mixed liquor, and stirs evenly；
It places the beaker in 40 DEG C of thermostat water baths, nanometer titanium dioxide silicon powder is added, is uniformly mixing to obtain powderblue suspension；It will
Suspension is added in NaOH solution and dehydrated alcohol, while rapidly joining hydroxylamine hydrochloride solution, orange-yellow with obtaining after stirring 3min
Suspension；1.5h is stood after orange-yellow suspension beaker is sealed with preservative film；Beaker is replaced in thermostat water bath and is stirred
Mix 10min；It takes out beaker to stand, removes supernatant after solution layering；(ethyl alcohol: water=1: precipitating 1) is washed with ethanol solution
Three times；It will be precipitated and dissolved in dehydrated alcohol, and move to culture dish；Above-mentioned be deposited at 60 DEG C is dried, it is negative to obtain silica
The cuprous oxide of load.
It is appreciated that the preparation method of silicon dioxide carried cuprous oxide is not limited to the above method, it can also be it
His method commonly used in the art.
The preparation method of above-mentioned water remediation agent is easy to operate.
The eutrophic water body repairing method of one embodiment includes the following steps: the water that will be used to control cyanobacterial bloom
Body renovation agent is added in water body to be repaired, wherein water remediation agent includes diatom promotor and blue algae inhibitor, and diatom promotes
Agent includes nanometer titanium dioxide silicon powder, and blue algae inhibitor includes Cu2O@SiO2。
Specifically, the load capacity of silicon dioxide carried cuprous oxide is 3%~10%.Further, silica is negative
The load capacity of the cuprous oxide of load is 5%.The Cu in nanometer titanium dioxide silicon powder and blue algae inhibitor in diatom promotor2O@
SiO2Mass ratio be 200: 1.
In some embodiments, water remediation agent is pulverulence.The water body for being used to control cyanobacterial bloom is answered agent to be added
Include: to the step in water body to be repaired
Water remediation agent is dispersed in water, water body dispersion liquid, the nanometer in water body dispersion liquid in diatom promotor are obtained
The mass concentration of fine silica powder is 20g/L, the Cu in blue algae inhibitor2O@SiO2Mass concentration be 0.1g/L；
It is by volume to be added in be repaired water body at 1: 100 by water body dispersion liquid.
In further embodiments, water remediation agent is liquid condition.Water remediation agent further includes water, in diatom promotor
Nanometer titanium dioxide silicon powder and the mass volume ratio of water be 2g: 100mL, the Cu in blue algae inhibitor2O@SiO2With the quality of water
Volume ratio is 0.01g: 100mL, the step packet water remediation agent for being used to control cyanobacterial bloom being added in water body to be repaired
It includes: being by volume to be added in be repaired water body at 1: 100 by water remediation agent.
Specifically, above-mentioned water body to be repaired is the water body for breaking out cyanobacterial bloom.
Above-mentioned water remediation method can repair the water body for having broken out cyanobacterial bloom, and in repair process not
Secondary pollution can be generated.
The following are specific embodiment parts, in the examples below, such as without special explanation, then without containing except inevitable
Impurity other than other the components pointed out are not known；Water used in preparation process as solvent action is all deionization
Water.
Embodiment 1
The preparation process of the water remediation agent for controlling cyanobacterial bloom of embodiment 1 is specific as follows:
(1) preparation of diatom promotor
It weighs 2g nanometer titanium dioxide silicon powder and is dissolved in 80mL deionized water simultaneously ultrasound 15min, keep its evenly dispersed, obtain
Silica dispersions.Weigh 0.4g FeCl3、0.1g MnCl2、0.05g ZnCl2With 0.01g CoCl2Be dissolved in 10mL go from
In sub- water, trace element solution is obtained.It takes 1mL trace element solution to be added in silica dispersions, obtains after mixing
Diatom promotor.
(2) preparation of blue algae inhibitor
83.4mL deionized water, 20mL dehydrated alcohol and 5mL CuCl are added into beaker2Solution (0.5mol/L) simultaneously stirs
It mixes uniformly.Then it places the beaker in 40 DEG C of thermostat water baths, 1.9g Nano-meter SiO_2 is added2Micro mist, and stir evenly.To beaker
9mL NaOH solution (1mol/L) and 30mL dehydrated alcohol is successively added in the temperature and bath temperature of interior solution when close, and quickly
It is added 9.8mL hydroxylamine hydrochloride solution (0.5mol/L), stands 1.5h after being sealed beaker with preservative film after stirring 3min.
Beaker is replaced in thermostat water bath after 1.5h and is stirred, beaker is taken out after 10min and is stood, after solution layering
Supernatant is removed, is precipitated.Precipitating is washed 3 times with the solution that the volume ratio of ethyl alcohol and water is 1: 1, will be finally precipitated and dissolved in
In dehydrated alcohol, drying obtains the Cu that load capacity is 5% at 60 DEG C2O@SiO2, obtain blue algae inhibitor.
(3) growth of diatom algae promotor is mixed with blue algae inhibitor
Weigh 0.01g Cu2O@SiO2It is dissolved in 10mL deionized water simultaneously ultrasound 15min, keeps its evenly dispersed, obtains
Cu2O@SiO2Concentration is the cuprous oxide dispersion liquid of 1g/L；
Diatom promotor is uniformly mixed with cuprous oxide dispersion liquid, and moves into constant volume in 100mL volumetric flask, obtains water body
Renovation agent.
The every 10mL of the water remediation agent can act on 1L water body to be repaired.
Embodiment 2
The preparation process of the water remediation agent for controlling cyanobacterial bloom of embodiment 2 is specific as follows:
(1) 2g nanometer titanium dioxide silicon powder, 0.04g FeCl are weighed3、0.01g MnCl2、0.005g ZnCl2And 0.001g
CoCl2Mixing, obtains diatom promotor.
(2) the step of pressing embodiment 1 (2) obtains the Cu that load capacity is 5%2O@SiO2, i.e. blue algae inhibitor.
(3) it weighs 0.01g blue algae inhibitor to mix with diatom promotor, obtains water remediation agent.
Water remediation agent is first dispersed in 100mL water when being used for water remediation by water remediation agent obtained in embodiment 2
In, make the concentration 50g/L of nanometer titanium dioxide silicon powder.Then it is added in water body to be repaired, uses for 1: 100 according to volume ratio
In water remediation.
Embodiment 3
The preparation process of the water remediation agent for controlling cyanobacterial bloom of embodiment 3 is specific as follows:
(1) the step of pressing embodiment 1 (1), obtains diatom promotor.
(2) preparation of blue algae inhibitor
83.4mL deionized water, 20mL dehydrated alcohol and 5mL CuCl are added into beaker2Solution (0.5mol/L) simultaneously stirs
It mixes uniformly.Then it places the beaker in 40 DEG C of thermostat water baths, 5.7g Nano-meter SiO_2 is added2Micro mist, and stir evenly.To beaker
9mL NaOH solution (1mol/L) and 30mL dehydrated alcohol is successively added in the temperature and bath temperature of interior solution when close, and quickly
It is added 9.8mL hydroxylamine hydrochloride solution (0.5mol/L), stands 1.5h after being sealed beaker with preservative film after stirring 3min.
Beaker is replaced in thermostat water bath after 1.5h and is stirred, beaker is taken out after 10min and is stood, after solution layering
Supernatant is removed, is precipitated.Precipitating is washed 3 times with the solution that the volume ratio of ethyl alcohol and water is 1: 1, will be finally precipitated and dissolved in
In dehydrated alcohol, drying obtains the Cu that load capacity is 3% at 60 DEG C2O@SiO2, obtain blue algae inhibitor.
(3) diatom promotor is mixed according to (3) the step of embodiment 1 with blue algae inhibitor, obtains water remediation agent.
The every 10mL of the water remediation agent can act on 1L water body to be repaired.
Embodiment 4
The preparation process of the water remediation agent for controlling cyanobacterial bloom of embodiment 4 is specific as follows:
(1) the step of pressing embodiment 1 (1), obtains diatom promotor.
(2) preparation of blue algae inhibitor
83.4mL deionized water, 20mL dehydrated alcohol and 5mL CuCl are added into beaker2Solution (0.5mol/L) simultaneously stirs
It mixes uniformly.Then it places the beaker in 40 DEG C of thermostat water baths, 0.95g Nano-meter SiO_2 is added2Micro mist, and stir evenly.To beaker
9mL NaOH solution (1mol/L) and 30mL dehydrated alcohol is successively added in the temperature and bath temperature of interior solution when close, and quickly
It is added 9.8mL hydroxylamine hydrochloride solution (0.5mol/L), stands 1.5h after being sealed beaker with preservative film after stirring 3min.
Beaker is replaced in thermostat water bath after 1.5h and is stirred, beaker is taken out after 10min and is stood, after solution layering
Supernatant is removed, is precipitated.Precipitating is washed 3 times with the solution that the volume ratio of ethyl alcohol and water is 1: 1, will be finally precipitated and dissolved in
In dehydrated alcohol, drying obtains the Cu that load capacity is 10% at 60 DEG C2O@SiO2, obtain blue algae inhibitor.
(3) diatom promotor is mixed according to (3) the step of embodiment 1 with cuprous oxide dispersion liquid, obtains water remediation
Agent.
The every 10mL of the water remediation agent can act on 1L water body to be repaired.
Part of detecting:
The biomass of autochthonal diatom is too low in lake water due to having broken out cyanobacterial bloom, need by additional diatom kind come
The initial silicon algae biomass properly increased in water body makes it have certain competitiveness.
It takes 400mL to break out the lake water of cyanobacterial bloom, with diatom algae is added after the filtering of 200 mesh filter screens, makes diatom
Initial biomass reaches 10% of total biomass or so.
4 250mL conical flasks are taken, it is each that 200mL lake water is added.Be separately added into 3 conical flasks thereto 2mL embodiment 1,
The water remediation agent that is prepared in embodiment 3 and embodiment 4 is simultaneously uniformly mixed, and is denoted as 3 groups of example 1 group, embodiment respectively
With 4 groups of embodiment.It is without any processing in another conical flask, it is denoted as control group.Four groups of conical flasks are placed in the training of illumination constant temperature
It supports and is tested in case (25 DEG C, 2000lux, light dark period 12h:12h).0 day, 2 days, 4 days, 6 days, 8 days started in experiment
It sampled, is counted under microscope after being fixed using Shandong brother's reagent, and calculate biomass with 10 days.Control group and example 1 group, reality
It is as shown in Figure 1, Figure 2, Figure 3 and Figure 4 to apply 3 groups of example, the experimental data of 4 groups of embodiment difference.
It can be seen that biomass maintains cyanobacteria substantially during the experiment in the lake water of control group from the test result of Fig. 1
In similar level.The biomass of diatom gradually decreases during experiment, its biomass deficiency total biomass after experiment starts 10 days
1%.The biomass of green alga is relatively stable during the experiment, but green alga biomass is begun to ramp up after the reduction of diatom biomass.
It can be seen that blue alga biomass is decreased obviously in the lake water of example 1 group from the test result of Fig. 2, to the 10th
It when, blue alga biomass only maintains 1% or so of total biomass；The biomass of diatom rises appreciably during the experiment.And
It can be seen that green alga obtains more living spaces since cyanobacteria is largely dead during experiment.At the 10th day, the biology of green alga
Amount reaches the 40% of total biomass.
Comparison diagram 1 and Fig. 2 it is found that the water remediation agent that is prepared of embodiment 1 in the lake water for having broken out cyanobacterial bloom
In can inhibit the growth of cyanobacteria significantly, while growth of diatom algae can also be promoted, diatom can be significantly improved in natural water
In competitiveness, so that water body be enable to repair.
It can also be seen that the water remediation agent that embodiment 3 and embodiment 4 are prepared is broken out from Fig. 3 and Fig. 4
It can inhibit significantly the growth of cyanobacteria in the lake water of cyanobacterial bloom, while promote growth of diatom algae.0 day and 10 started in experiment
It samples the lake water of example 1 group, tests lake water respectively using Berthelot spectrophotometry and ammonium molybdate spectrophotometric method
In ammonia nitrogen, total phosphorus content, test data is as shown in table 1 below:
Table 1
| Ammonia-nitrogen content/mg/L | Total phosphorus content/mg/L | |
| Before experiment starts (0 day) | 0.839 | 0.209 |
| After experiment (10 days) | 0.347 | 0.0739 |
From table 1 it follows that the lake water of example 1 group be added embodiment 1 in water remediation agent processing after, lake water
In ammonia-nitrogen content and total phosphorus content significantly reduce, wherein ammonia-nitrogen content reduces 58.7%, and total phosphorus content reduces
64.6%.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of for controlling the water remediation agent of cyanobacterial bloom, which is characterized in that including diatom promotor and blue algae inhibitor,
The diatom promotor includes nanometer titanium dioxide silicon powder, and the blue algae inhibitor includes Cu2O@SiO2。
2. water remediation agent according to claim 1, which is characterized in that the nano-silica in the diatom promotor
Cu in SiClx micro mist and the blue algae inhibitor2O@SiO2Mass ratio be 200:1.
3. water remediation agent according to claim 1, which is characterized in that the Cu2O@SiO2In Cu2The load capacity of O is
3%~10%.
4. water remediation agent according to claim 1, which is characterized in that further include micro member in the diatom promotor
Element, the microelement are selected from least one of ferro element, manganese element, Zn-ef ficiency and cobalt element.
5. water remediation agent according to any one of claims 1 to 4, which is characterized in that the water remediation agent further includes
Water, the mass volume ratio of the nanometer titanium dioxide silicon powder and the water in the diatom promotor is 2g:100mL, described
The Cu in blue algae inhibitor2O@SiO2Mass volume ratio with the water is 0.01g:100mL.
6. a kind of for controlling the preparation method of the water remediation agent of cyanobacterial bloom, which comprises the steps of: by silicon
Algae promotor is mixed with blue algae inhibitor, obtains water remediation agent, wherein the diatom promotor includes that nano silica is micro-
Powder, the blue algae inhibitor include Cu2O@SiO2。
7. preparation method according to claim 6, which is characterized in that the water remediation agent further includes water, the diatom
Further include microelement in promotor, the microelement in ferro element, manganese element, Zn-ef ficiency and cobalt element at least one
Kind, it is described to receive the step of diatom promotor is mixed with blue algae inhibitor and include:
The nanometer titanium dioxide silicon powder is dispersed in the water, silica dispersions are obtained；
The microelement is dissolved in the water, trace element solution is obtained；
The trace element solution is mixed with the silica dispersions, obtains the diatom promotor；
By the Cu2O@SiO2It is dispersed in the water, obtains cuprous oxide dispersion liquid；
The cuprous oxide dispersion liquid is mixed with the diatom promotor.
8. a kind of eutrophic water body repairing method, which comprises the steps of: will be used to control the water of cyanobacterial bloom
Body renovation agent is added in water body to be repaired, wherein the water remediation agent includes diatom promotor and blue algae inhibitor, described
Diatom promotor includes nanometer titanium dioxide silicon powder, and the blue algae inhibitor includes Cu2O@SiO2。
9. eutrophic water body repairing method according to claim 8, which is characterized in that the water remediation agent further includes
Water, the mass volume ratio of the nanometer titanium dioxide silicon powder and the water in the diatom promotor is 2g:100mL, described
The Cu in blue algae inhibitor2O@SiO2Mass volume ratio with the water is 0.01g:100mL, described to be used to control indigo plant
It is 1 that the step that the water remediation agent of algae wawter bloom is added in water body to be repaired includes: by the water remediation agent by volume:
100 are added in the water body to be repaired.
10. eutrophic water body repairing method according to claim 8, which is characterized in that described to be used to control cyanobacteria
The step that the water remediation agent of wawter bloom is added in water body to be repaired includes:
The water remediation agent is dispersed in water, water body dispersion liquid, diatom promotor described in the water body dispersion liquid are obtained
In the mass concentration of the nanometer titanium dioxide silicon powder be 20g/L, the Cu in the blue algae inhibitor2O@SiO2Matter
Amount concentration is 0.1g/L；
It is by volume that 1:100 is added in the water body to be repaired by the water body dispersion liquid.
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| CN116216874A (en) * | 2023-03-23 | 2023-06-06 | 重庆大学 | Water body restoration agent for controlling cyanobacteria bloom, preparation method and application |
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