CN110818040A - Method for preventing and treating cladophora - Google Patents
Method for preventing and treating cladophora Download PDFInfo
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- CN110818040A CN110818040A CN201911029396.1A CN201911029396A CN110818040A CN 110818040 A CN110818040 A CN 110818040A CN 201911029396 A CN201911029396 A CN 201911029396A CN 110818040 A CN110818040 A CN 110818040A
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- water
- cladophora
- zinc sulfate
- water body
- settling agent
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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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
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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
- C02F1/52—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
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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
- 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 discloses a method for preventing and controlling cladophora, belonging to the technical field of harmful algae control in water environment protection, comprising the following steps of: selecting a governing water area: determining the volume of a water area for implementing treatment; preparing an algicide: mixing a certain mass of zinc sulfate with a small amount of water; mixing a settling agent and an algicide: adding a settling agent into the prepared zinc sulfate mixed solution according to a certain proportion; throwing and settling: the method is simple, quick, obvious in effect, low in cost and safe for water bodies and aquatic animals and plants.
Description
Technical Field
The invention discloses a method for preventing and controlling cladophora, and particularly relates to the technical field of control of harmful algae in water environment protection.
Background
Cladophora (Cladophora) is a common filamentous green alga belonging to the genus Cladophora of the phylum Chlorophyta, with cells in the form of cylinders, larvae of a reticular chloroplast, adults of a plurality of granules, starch nuclei and cell nuclei. The cell wall is thick, has a grain layer, and the outermost layer is chitin. In 4 months of each year, cladophora begins to grow, the growth period is about half a year in 10 months, the growth suitable temperature is 10-40 ℃, the adaptability is strong, asexual reproduction or generation of zoospore can be realized, and sexual reproduction is homozygosis combination. Due to the special cell structure, strong reproductive capacity, reproduction capacity and adaptability of cladophora, the cladophora not only causes serious harm to water bodies, but also is difficult to eliminate relative to spirogyra. In water bodies such as lakes, rivers, landscape water bodies and the like, cladophora often grows attached to submerged plants and winds around the surfaces of the submerged plants to shade light, so that the submerged plants cannot grow normally; cladophora grows to a certain period and dies, floats on the water surface, is rotten and goes bad, easily generates stink, and threatens the safety of landscape and water organisms.
According to the life habit and the harm degree of cladophora, the following methods are mainly used for prevention and treatment: (1) the medicament method comprises the following steps: putting a copper sulfate solution with a certain concentration or preparing a blue vitriol solution with a certain proportion in a water body with cladophora growing on the water body for spraying; (2) a salvaging method comprises the following steps: directly and manually salvaging or increasing the water level of the water body with the cladophora to float the cladophora, blowing the cladophora by wind power and salvaging and removing the cladophora at the downstream; (3) a turbidity method: in the cladophora growing area, the water body is stirred to destroy the photosynthesis of cladophora, so that the growth of cladophora is inhibited. Although the method can eliminate cladophora to a certain degree, the method has certain defects, for example, a medicament method is an effective way for quickly treating cladophora, but the method has toxicity to threaten the safety of aquatic organisms and is easy to cause secondary pollution to a water body; the salvage method is the most common method and is safe and efficient, but the most labor-consuming method is adopted, the cladophora is easy to break during salvage, the phenomenon that the more salvage is longer and longer occurs, and the fundamental problem cannot be solved; the turbidity method is simple and easy to operate, but has a slow action effect, inhibits the photosynthesis of cladophora, can influence the growth of aquatic plants, and can influence the landscape effect. In recent years, wu zhen, yi ke lang et al proposed a method for removing floating cladophora, with patent number CN105016524A, spraying hydrogen peroxide and ferrous sulfate solution as algicide on the surface of floating cladophora, and then using settling agent to make cladophora sink to the bottom of water, so as to achieve the effect of removing cladophora. The method is effective for cladophora floating on the water surface, but has high cost and does not relate to the treatment of cladophora attached to a water body substrate or wound on the surface of submerged plants. Therefore, the invention provides a method for rapidly treating cladophora by using the algicide and the settling agent, zinc sulfate is used as the algicide, ZnSO4 generates Zn2+ in a water body, and the aim of controlling the algae killing is achieved by destroying cladophora cells. The method can not only eliminate cladophora floating on the water surface, but also quickly eliminate cladophora winding on the surface of the submerged plant and attached to the substrate in the water body, and is simple and easy to implement, low in cost, free of toxic and harmful effects on aquatic animals and plants, and capable of promoting the growth of the aquatic plants to a certain extent.
Disclosure of Invention
The present invention aims to provide a method for controlling cladophora, which solves the problems of the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a method of controlling cladophora, the method comprising the steps of:
the method comprises the following steps: selecting a governing water area: determining the volume of a water area for implementing treatment in a water body with cladophora;
step two: preparing an algicide: according to the volume of a treated water area, zinc sulfate with certain mass is mixed with a small amount of water, and the mixture is turbid;
step three: mixing a settling agent and an algicide: adding a settling agent into the prepared zinc sulfate mixed solution according to a certain proportion according to the using amount of zinc sulfate, and fully stirring and uniformly mixing;
step four: throwing and settling: and (3) manually scattering the mixture prepared in the last step into a water body, and allowing zinc sulfate to sink to the surface of cladophora in the water body under the gravity action of the settling agent and dissolve in water to play a role in killing algae.
Preferably, the water body with cladophora grown in the step one is a water body with cladophora floating on the water surface, a water body with cladophora growing on the surface of a submerged plant, a water body with cladophora growing attached to other substrates, or a cladophora water body with one or more growth states.
Preferably, the determination of the volume of the water area to be treated in the first step is determined according to the growth condition of cladophora and the water area and water depth of the actual water body to be treated.
Preferably, the using mass of the algicide zinc sulfate in the second step is calculated according to the volume of the water area, and the mass concentration of the zinc sulfate is 10-50 g/m3。
Preferably, the zinc sulfate in the second step is mixed with a small amount of water, and the amount of the water is 10-40% of the mass of the zinc sulfate.
Preferably, the settling agent in the third step is sand, clay, bentonite or a mixture of several settling agents.
Preferably, the mass ratio of the settling agent to the zinc sulfate in the third step is 0.5-2.0: 1.0-2.0.
Compared with the prior art, the invention has the beneficial effects that:
1) simple and quick, and the effect is showing: the method utilizes the zinc sulfate and the settling agent to be mixed and directly thrown into the water body, and the operation is simple; the zinc sulfate can quickly reach the surface of the cladophora under the action of the gravity of the precipitator, and the photosynthesis of the cladophora is directly inhibited. After the application, the cladophora can be observed to die and turn to withered white in the next day generally, and the treatment effect is obvious. Meanwhile, the method is effective to cladophora of different growth states in various water bodies;
2) the cost is low: the zinc sulfate and the settling agent used by the method have wide sources and low prices; special equipment and other materials are not needed in the implementation process, the implementation is simple and easy, and manpower and material resources are saved;
3) the method is safe to water bodies and aquatic animals and plants: the zinc sulfate is used as algicide, is colorless and tasteless after being dissolved in water, and has no toxic action on aquatic animals and plants; in addition, zinc sulfate as a zinc fertilizer can promote the growth of aquatic plants.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A method for rapidly treating cladophora, which comprises the following steps:
the method comprises the following steps: the cladophora in the implementation area is wound on the surface of the submerged plant, so that the cladophora grows in wild and crazy state, and the area of the water area is about 600m2Average water depth of 1.2m and implementation water volume of 720m3；
Step two: the using mass concentration of zinc sulfate is 50g/m3The amount of water is 10 percent of the mass of the zinc sulfate. According to the volume of a water area, the dosage of zinc sulfate is 36kg, the dosage of water is 3.6kg, and the zinc sulfate is dissolved in the water to form a turbid state;
step three: adding 18kg of sandy soil into the zinc sulfate mixed solution in the previous step, and uniformly stirring and mixing the sandy soil and the zinc sulfate according to the mass ratio of 0.5: 1.0;
step four: and (3) manually scattering the mixture prepared in the last step into a water body, and allowing zinc sulfate to sink to the surface of cladophora in the water body under the gravity action of the settling agent and dissolve in water to play a role in killing algae.
Example 2
A method for rapidly treating cladophora, which comprises the following steps:
the method comprises the following steps: the cladophora in the implementation area is wound on the surface of the submerged plant tape grass for growth, and some cladophora float on the water surface, the cladophora in the whole water body grows mad, and the area of the water area is about 1000m2Average water depth of 1m and volume of 1000m3；
Step two: the using mass concentration of zinc sulfate is 30g/m3The amount of water is 20 percent of the mass of the zinc sulfate. According to the volume of a water area, the dosage of zinc sulfate is 30kg, the dosage of water is 5.0kg, and the zinc sulfate is dissolved in the water to form a turbid state;
step three: the mass ratio of the settling agent to the zinc sulfate is 2.0:1.0, 60kg of bentonite is added into the zinc sulfate mixed solution in the previous step, and the mixture is stirred and mixed uniformly;
step four: manually throwing the mixture prepared in the last step into a water body, and allowing zinc sulfate to sink to the surface of cladophora winding on the submerged plant tape grass under the gravity action of a settling agent, wherein the zinc sulfate is dissolved in water to play a role in killing algae; the cladophora floating on the water surface sinks to the water bottom under the action of the settling agent, and the zinc sulfate is dissolved in water to play a role in killing algae.
Example 3
A method for rapidly treating cladophora, which comprises the following steps:
the method comprises the following steps: the cladophora in the implementation area mainly grows attached to the surface of the landscape stone in the water body in an explosive manner, and the area of the water body is about 64m2Average water depth of 0.5m and volume of water area of 32m3；
Step two: the using mass concentration of zinc sulfate is 10g/m3The amount of water is 40% of the mass of zinc sulfate. According to the volume of a water area, the dosage of zinc sulfate is 320g, and the dosage of water is 80g, and the zinc sulfate is dissolved in the water to form a turbid state;
step three: the mass ratio of the settling agent to the zinc sulfate is 1.0:1.0, 320g of clay is added into the zinc sulfate mixed solution in the previous step, and the mixture is stirred and mixed uniformly;
step four: and (3) manually scattering the mixture prepared in the last step into a water body, and allowing zinc sulfate to sink to the surface of cladophora growing along landscape stones in the water body under the action of gravity of the settling agent and dissolve in water to play a role in killing algae.
In the above examples, after the algae killing, the growth of cladophora is generally inhibited after 2 days, and the cladophora changes from green to withered white, and gradually decomposes and disappears after 5 to 7 days.
While the invention has been described with reference to certain embodiments, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the various embodiments of the invention disclosed may be used in any combination whatsoever without structural conflict, and the failure to exhaustively describe such combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (7)
1. A method of controlling cladophora, comprising: the method for preventing and treating cladophora comprises the following steps:
the method comprises the following steps: selecting a governing water area: determining the volume of a water area for implementing treatment in a water body with cladophora;
step two: preparing an algicide: according to the volume of a treated water area, zinc sulfate with certain mass is mixed with a small amount of water, and the mixture is turbid;
step three: mixing a settling agent and an algicide: adding a settling agent into the prepared zinc sulfate mixed solution according to a certain proportion according to the using amount of zinc sulfate, and fully stirring and uniformly mixing;
step four: throwing and settling: and (3) manually scattering the mixture prepared in the last step into a water body, and allowing zinc sulfate to sink to the surface of cladophora in the water body under the gravity action of the settling agent and dissolve in water to play a role in killing algae.
2. The method of claim 1, wherein the method comprises: the water body with cladophora growing in the first step is a water body with cladophora floating on the water surface, a water body with cladophora growing on the surface of a submerged plant, a water body with cladophora growing attached to other substrates or a cladophora water body with one or more growth states.
3. The method of claim 1, wherein the method comprises: and determining the volume of the water area to be treated in the first step according to the growth condition of cladophora and the water area and water depth of the actual water body to be treated.
4. The method of claim 1, wherein the method comprises: in the second step, the using mass of the algicide zinc sulfate is calculated according to the volume of the water area, and the mass concentration of the zinc sulfate is 10-50 g/m3。
5. The method of claim 1, wherein the method comprises: and in the second step, the zinc sulfate is mixed with a small amount of water, and the amount of the water is 10-40% of the mass of the zinc sulfate.
6. The method of claim 1, wherein the method comprises: the settling agent in the third step is sand soil, clay, bentonite or a mixture of several settling agents.
7. The method of claim 1, wherein the method comprises: the mass ratio of the settling agent to the zinc sulfate in the third step is 0.5-2.0: 1.0-2.0.
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| CN201911029396.1A CN110818040A (en) | 2019-10-28 | 2019-10-28 | Method for preventing and treating cladophora |
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| CN201911029396.1A CN110818040A (en) | 2019-10-28 | 2019-10-28 | Method for preventing and treating cladophora |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113068713A (en) * | 2021-03-30 | 2021-07-06 | 江苏曌之源实业有限公司 | Efficient algae remover and application thereof |
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