CN113287632A - Red tide algae removal agent based on tannin coupled ferrous activated persulfate and application thereof - Google Patents
Red tide algae removal agent based on tannin coupled ferrous activated persulfate and application thereof Download PDFInfo
- Publication number
- CN113287632A CN113287632A CN202110614735.3A CN202110614735A CN113287632A CN 113287632 A CN113287632 A CN 113287632A CN 202110614735 A CN202110614735 A CN 202110614735A CN 113287632 A CN113287632 A CN 113287632A
- Authority
- CN
- China
- Prior art keywords
- red tide
- persulfate
- ferrous iron
- algae
- tannin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/02—Sulfur; Selenium; Tellurium; Compounds thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/14—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings
- A01N43/16—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings with oxygen as the ring hetero atom
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/16—Heavy metals; Compounds thereof
-
- 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
- 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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Environmental Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Agronomy & Crop Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Inorganic Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Toxicology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a red tide algae removing agent based on tannin coupling ferrous iron activated persulfate and application thereof, wherein the red tide algae removing agent consists of tannin, ferrous iron and persulfate, and the mass ratio of the tannin to the ferrous iron to the persulfate is (0.5-2.0): 10: 24; the persulfate is sodium persulfate, potassium hydrogen persulfate or ammonium persulfate; the tannic acid is industrial grade, and the content is 85-99%; the ferrous iron is analytically pure ferrous sulfate heptahydrate, and the content of the ferrous iron is more than 99%. The red tide algae removal agent disclosed by the invention has high efficiency, greenness and sustainability, and effectively improves the potential influence of the existing heterogeneous phase algae removal agent on the environment; the homogeneous phase advanced oxidation process of activating persulfate by coupling tannic acid with ferrous iron is utilized to inhibit the activity of red tide algae so as to settle algae cells; the efficiency of treating the red tide water body is obviously improved through an algae removal mechanism of inactivation, apoptosis and sedimentation.
Description
Technical Field
The invention relates to a method for treating seawater red tide pollution, in particular to an application of a red tide algaecide based on tannin coupled ferrous activated persulfate in treatment of marine red tide.
Background
Harmful red tide is a harmful ecological abnormal phenomenon that microalgae, protozoa or bacteria in the ocean proliferate explosively or gather highly under certain conditions to cause water body discoloration. And the frequent outbreak of harmful red tides poses serious threats to regional aquatic organisms, fishery industry, land tourism industry and human health. Therefore, the development of emergency algae removal technology is very important.
Although there have been corresponding efforts to investigate harmful red tides, there has been no established doctrine of prevention and management of red tides to date. But the cause of the outbreak is also a potential preventive mechanism, and in terms of treatment, measures can be largely divided into biological methods, physical methods, and chemical methods. The physical method is mainly to remove algae by using mechanical equipment and applying air flotation, ultrasonic waves, stirring, adsorption and the like; biological methods use zooplankton, macrophytes, microorganisms, and filter-feeding shellfish to inhibit or eliminate microalgae; chemical methods include chemical killing methods and flocculation methods. The flocculation sedimentation method has prominent research results, and particularly, a great deal of research is carried out at home and abroad on the flocculation aspect of the modified clay. However, the method has certain defects, and the red tide removing biological capacities of different types of clay minerals and even the same type of clay minerals are greatly different; different application modes also significantly affect the ability of clay to remove red tide organisms; the key is that the cost of spreading a large amount of clay is high, the effect is slow, and secondary rebound is possible to cause pollution.
Tannin is also called tannin, is a polyphenol derivative, is widely present in plants, is safe and nontoxic, and has strong biological and pharmacological activities. The red tide algae is a natural product with important development and utilization values by obviously inhibiting the growth of the red tide algae through the degradation effect on the red tide algae, so the red tide algae is applied to the treatment of the red tide. Ferrous iron, as an environment-friendly transition metal ion, is widely used for activating persulfate, and can generate a large amount of reactive free radicals, so that the aim of removing pollutants is fulfilled. Persulfate is a common oxidant and has a certain killing effect on algae cells, and because persulfate has the advantages of low toxicity, low price, easiness in operation and the like, the persulfate activated by the tannic acid is used as a red tide algaecide, so that the potential application value for removing red tide algae exists, but no related research proves.
Disclosure of Invention
The invention aims to provide a red tide algae removal agent based on tannin coupled ferrous activated persulfate and application thereof in red tide treatment, so as to effectively solve the problems of large spraying amount, large environmental influence, slow effect, easy rebound and easy secondary pollution of the existing heterogeneous red tide algae removal agent.
Therefore, the invention adopts the following technical scheme:
a red tide algae algaecide based on tannin coupled ferrous activated persulfate, which consists of tannin, ferrous and persulfate, wherein the mass ratio of the tannin to the ferrous to the persulfate is (0.5-2.0): 10: 24.
the persulfate is sodium persulfate, potassium hydrogen persulfate or ammonium persulfate.
The tannic acid is industrial grade, and the content is 85-99%.
The ferrous iron is analytically pure ferrous sulfate heptahydrate, and the content of the ferrous iron is more than 99%.
The application of the red tide algae algaecide based on the tannin coupling ferrous activation persulfate comprises the steps of respectively dissolving sulfate, tannin and ferrous in seawater to form a solution, spraying a sulfate solution on the surface of a red tide water body, spraying a mixed solution of a tannin solution and a ferrous solution on the surface of the red tide water body after 10 minutes, and effectively removing the red tide algae after natural sedimentation for 3-5 hours, wherein the adding concentrations of the tannin, the ferrous and the persulfate in the red tide water body are respectively 0.005g/L-0.020g/L, 0.1g/L and 0.24 g/L.
The red tide algae is spherical phaeocystis, red tide yizhuan algae, Skeletonema costatum or prorocentrum donghaiense.
Compared with the prior art, the invention has the advantages that:
the red tide algae removal agent disclosed by the invention has high efficiency, greenness and sustainability, and effectively improves the potential influence of the existing heterogeneous phase algae removal agent on the environment. The homogeneous phase advanced oxidation process of activating persulfate by coupling tannic acid with ferrous iron is utilized to inhibit the activity of red tide algae so as to settle algae cells; the efficiency of treating the red tide water body is obviously improved through an algae removal mechanism of inactivation, apoptosis and sedimentation.
Drawings
FIG. 1 is a graph showing the removal efficiency of phaeocystis globosa with different concentrations of red tide algaecide provided in example 1 of the present invention, wherein the initial concentration of phaeocystis globosa has a biological density of 109cells L-1。
FIG. 2 is a graph showing the time-dependent change of the red tide algaecide in the removal efficiency of Isocurainia variegata provided in example 2 of the present invention, wherein the initial concentration of Isocurainia variegata has a biological density of 109cells L-1The concentration of the algaecide for red tide algae in the algae liquid is 0.36g L-1。
Detailed Description
The red tide algae algaecide consists of tannic acid, ferrous iron and persulfate. In the red tide algae algaecide, the dosage of the tannin, the ferrous iron and the persulfate can be adjusted according to the characteristics of the water body to be applied, such as the change of salinity and biomass. Usually, the adding concentration of the tannic acid is between 0.005g/L and 0.020g/L, the adding concentration of the ferrous iron is 0.1g/L, and the adding concentration of the persulfate is 0.24 g/L. When the water-saving agent is used, firstly persulfate with a certain concentration is sprayed on the surface of a red tide water body, and secondly, tannic acid and ferrous iron are uniformly mixed and then sprayed on the surface of the red tide water body. Red based on tannic acid coupled with divalent iron activated persulfateThe algaecide for tide algae uses seawater (or fresh water) as dispersion medium, and the total dosage of the algaecide for red tide is (0.345-0.360g L)-1) After a certain period of natural sedimentation, the red tide is effectively removed.
The invention is further illustrated by the following examples.
Example 1
A red tide algae algaecide based on tannic acid coupled ferrous iron activated persulfate, which consists of tannic acid, ferrous sulfate heptahydrate and sodium persulfate, wherein the mass ratio of the tannic acid to the ferrous iron to the persulfate is (0.005-0.02 g): 0.1 g: 0.24 g.
Under the condition that the quality of ferrous iron and persulfate is not changed, the dosage of tannin is adjusted to form the red tide algae algaecide with different formulas.
Taking red tide water body of phaeocystis globosa in stable growth period, wherein the initial concentration biological density of phaeocystis globosa reaches 109cells L-1. Respectively dissolving the sulfate, the tannic acid and the ferrous iron in seawater to form solutions, spraying the sulfate solution on the surface of the red tide water body, and after 10 minutes, spraying the mixed solution of the tannic acid solution and the ferrous iron solution on the surface of the red tide water body, wherein the adding concentrations of the red tide algae algaecide in the red tide water body are respectively 0 and 0.345g L-1、0.350g L-1、0.355g L-1、0.360g L-1And standing for 3h, and observing the density change of the spherical phaeocystis fuscus in the algae liquid. The algae removal efficiency of the algaecide with different concentrations is shown in figure 1.
The results show that when the concentration of the algaecide in the red tide is 0.355g L-1And above, for biological densities up to 109cells L-1The removal rate of the spherical phaeocystis fuscus can reach 76 percent or more.
Example 2
A red tide algae removing agent based on tannin coupled ferrous activated persulfate, which consists of tannin, ferrous sulfate heptahydrate and sodium persulfate, wherein the mass ratio of the tannin to the ferrous sulfate to the persulfate is 0.02 g: 0.1 g: 0.24 g.
Taking the red tide water body of red tide yiqu algae in the growth stabilization period, and the initial stage of the red tide yiqu algaeThe initial concentration of the biomass reaches 109cells L-1. Respectively dissolving the sulfate, the tannic acid and the ferrous iron in water to form solutions, spraying the sulfate solution on the surface of the red tide water body, spraying the mixed solution of the tannic acid solution and the ferrous iron solution on the surface of the red tide water body after 10 minutes, wherein the adding concentration of the red tide algae algaecide in the algae solution is 0.360g L-1Standing, and observing the density change of red tide heterocurvula with time, wherein the algae removal efficiency is shown in figure 2.
The result shows that when the red tide algae algaecide is kept still for 300min, the biological density of the red tide algae algaecide reaches 109cells L-1The removal rate of the red tide heterocurvula can reach 98 percent (see figure 2).
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention disclosed herein should be covered within the scope of the present invention.
Claims (6)
1. A red tide algae algaecide based on tannin coupled ferrous activated persulfate, which is characterized in that: the composition consists of tannic acid, ferrous iron and persulfate, wherein the mass ratio of the tannic acid to the ferrous iron to the persulfate is (0.5-2.0): 10: 24.
2. the red tide algae algaecide of claim 1, wherein the persulfate is sodium persulfate, oxone, or ammonium persulfate.
3. The red tide algae algaecide according to claim 1, wherein: the tannic acid is industrial grade, and the content is 85-99%.
4. The red tide algae algaecide according to claim 1, wherein: the ferrous iron is analytically pure ferrous sulfate heptahydrate, and the content of the ferrous iron is more than 99%.
5. The use of the tannin-coupled ferrous activated persulfate-based red tide algae algaecide of claim 1, wherein the tannin-coupled ferrous activated persulfate-based red tide algae algaecide comprises the following components: respectively dissolving the sulfate, the tannic acid and the ferrous iron in water to form solutions, spraying the sulfate solution on the surface of a red tide water body, spraying a mixed solution of a tannic acid solution and a ferrous iron solution on the surface of the red tide water body after 10 minutes, and effectively removing red tide algae after 3-5 hours of natural sedimentation, wherein the adding concentrations of the tannic acid, the ferrous iron and the persulfate in the red tide water body are respectively 0.005-0.020 g/L, 0.1g/L and 0.24 g/L.
6. The use according to claim 5, wherein the red tide algae is phaeocystis globosa, heterocurvatus red tide algae, skeletonema costatum or prorocentrum donghaiense.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110614735.3A CN113287632A (en) | 2021-06-02 | 2021-06-02 | Red tide algae removal agent based on tannin coupled ferrous activated persulfate and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110614735.3A CN113287632A (en) | 2021-06-02 | 2021-06-02 | Red tide algae removal agent based on tannin coupled ferrous activated persulfate and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113287632A true CN113287632A (en) | 2021-08-24 |
Family
ID=77327090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110614735.3A Pending CN113287632A (en) | 2021-06-02 | 2021-06-02 | Red tide algae removal agent based on tannin coupled ferrous activated persulfate and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113287632A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101172692A (en) * | 2007-09-28 | 2008-05-07 | 大连海事大学 | Method for processing red tide with sulphuric acid free radical |
| CN102334487A (en) * | 2010-07-23 | 2012-02-01 | 北京林业大学 | Vegetable tannin algae inhibitor and method for inhibiting overgrowth of algae in eutrophicated fresh water area |
| WO2012118986A1 (en) * | 2011-03-01 | 2012-09-07 | Molycorp Minerals Llc | Contaminant removal from waters using rare earths |
| CN102892716A (en) * | 2010-04-06 | 2013-01-23 | 通用电气公司 | Non-destructive method for algae contaminated water treatment and algae harvest or removal |
| CN105000655A (en) * | 2015-08-05 | 2015-10-28 | 同济大学 | Method for removing algae in water through oxidizing agent activated through ferrous iron |
| CN105084510A (en) * | 2015-08-05 | 2015-11-25 | 同济大学 | Method for removing algae in water on basis of thermally-activated oxidizing agent |
| CN107892368A (en) * | 2017-11-21 | 2018-04-10 | 山东建筑大学 | A kind of method of potassium peroxymonosulfate enhanced-coagulation |
-
2021
- 2021-06-02 CN CN202110614735.3A patent/CN113287632A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101172692A (en) * | 2007-09-28 | 2008-05-07 | 大连海事大学 | Method for processing red tide with sulphuric acid free radical |
| CN102892716A (en) * | 2010-04-06 | 2013-01-23 | 通用电气公司 | Non-destructive method for algae contaminated water treatment and algae harvest or removal |
| CN102334487A (en) * | 2010-07-23 | 2012-02-01 | 北京林业大学 | Vegetable tannin algae inhibitor and method for inhibiting overgrowth of algae in eutrophicated fresh water area |
| WO2012118986A1 (en) * | 2011-03-01 | 2012-09-07 | Molycorp Minerals Llc | Contaminant removal from waters using rare earths |
| CN105000655A (en) * | 2015-08-05 | 2015-10-28 | 同济大学 | Method for removing algae in water through oxidizing agent activated through ferrous iron |
| CN105084510A (en) * | 2015-08-05 | 2015-11-25 | 同济大学 | Method for removing algae in water on basis of thermally-activated oxidizing agent |
| CN107892368A (en) * | 2017-11-21 | 2018-04-10 | 山东建筑大学 | A kind of method of potassium peroxymonosulfate enhanced-coagulation |
Non-Patent Citations (1)
| Title |
|---|
| 赵钢: "单宁酸对铜绿微囊藻抑制效果和特性分析", 《中国优秀博硕士学位论文全文数据库(硕士) 工程科技Ⅰ辑》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5194223B1 (en) | Chemical treatment agent | |
| KR101274071B1 (en) | Red tide removal materials and manufacturing method thereof | |
| CN109289539A (en) | A kind of brine refining nanofiltration membrane cleaning agent and preparation method thereof | |
| CN105967340A (en) | Ecological restoration method for eutrophic river channel water body | |
| Onalo et al. | Growth of freshwater microalga, Botryococcus sp. in heavy metal contaminated industrial wastewater | |
| CN111996133A (en) | Method for biologically enhancing application of sulfate reducing bacteria | |
| CN113287614B (en) | Red tide algae algaecide based on natural polyphenol modified nano-cellulose and application thereof | |
| CN108622951A (en) | A kind of green medicament in quick reparation river | |
| Borah et al. | Leakage of surfactants in greywater: Environmental impact, mitigation, and their circular economy | |
| CN1325390C (en) | Modified white clay and its application in treating red tide and fresh water algalbloom | |
| CN108033578A (en) | A kind of Treated sewage reusing low-phosphorus antiincrustation corrosion inhibitor and preparation method thereof | |
| CN103947691A (en) | Hydrogen peroxide/polysilicate aluminum sulfate compounded blue algae treating agent and preparation method thereof | |
| CN113287632A (en) | Red tide algae removal agent based on tannin coupled ferrous activated persulfate and application thereof | |
| CN108585228B (en) | Algal polysaccharide efficient boiler water regulator | |
| CN111039423A (en) | Antiscaling agent for circulating cooling water treatment and preparation method thereof | |
| CN105668839A (en) | Technology for treating heavy metal waste water through macroalgae | |
| CN102583682B (en) | Novel chelate flocculant | |
| KR20110030838A (en) | Kit and method for removing green or red tides | |
| CN113321318B (en) | Method for improving efficiency of clay in treating harmful algal blooms based on microbial composite modification | |
| CN114590882A (en) | Method for removing algae in water by activating persulfate during preparation of ferrate | |
| CN211734103U (en) | Copper ammonia complex effluent disposal system | |
| CN113287633A (en) | Red tide algae algaecide based on ferroferric oxide activated persulfate and application thereof | |
| CN112661275A (en) | Blue algae water purifying material for removing natural water eutrophication and eliminating biological compound mixing | |
| CN113354058B (en) | Red tide algae algaecide based on persulfate oxidation modified nanocellulose and application thereof | |
| CN105399215A (en) | Wastewater treatment agent used for electroplating wastewater treatment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |