Red tide algae algicide based on myricetin activated persulfate and application of algicide

A technology for activating persulfate, algae and algaecide, applied in herbicides and algicides, applications, chemicals for biological control, etc., can solve problems such as large environmental impact, secondary pollution, and easy rebound. , to achieve the effect of short effective time and good biocompatibility

Pending Publication Date: 2021-08-24
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a red tide algae algaecide based on myricetin-activated persulfate and its application, which can effectively improve the existing heterogeneous red tide algae algicide with large spraying volume, large impact on the environment, and slow effect , easy to rebound, easy to cause secondary pollution problems

Method used

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  • Red tide algae algicide based on myricetin activated persulfate and application of algicide
  • Red tide algae algicide based on myricetin activated persulfate and application of algicide
  • Red tide algae algicide based on myricetin activated persulfate and application of algicide

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Experiment 1: Mix myricetin with a mass content of 15%, 77% potassium monopersulfate, 3% polyethylene glycol, and 5% sodium chloride in 1L of seawater to prepare an algaecide solution 1;

[0028] Control 2: Mix myricetin with a mass content of 15%, 3% polyethylene glycol, and 5% sodium chloride in 1L of seawater as an algaecide solution 2;

[0029] Control 3: Mix potassium peroxymonosulfate with a mass content of 77%, 3% polyethylene glycol, and 5% sodium chloride in 1L of seawater and use it as algaecide solution 3;

[0030] Blank 4: 3% polyethylene glycol and 5% sodium chloride were uniformly mixed in 1L seawater as algaecide solution 4.

[0031] Get 4 parts of the red tide water body that Phaeocystis globosa grows, each 9L, spray above-mentioned 4 kinds of red tide algae algicide solutions wherein, the initial concentration biodensity of Phaeocystis globosa in the algae liquid reaches 10 9 cells L -1 , the concentration of each algaecide in the algae liquid is 0.2g...

Embodiment 2

[0034] Mix 28% myricetin, 66% sodium persulfate, 2% carrageenan, and 4% sodium sulfate in 1L seawater to prepare a red tide algae algaecide solution.

[0035] Get 6 parts of the red tide water body that grows Heterocurvium akashiwo, each 9L, spray the above-mentioned red tide algae algicide solution to it respectively, the initial concentration biodensity of Heterocurvium akashiwo in the algae liquid reaches 10 8 cells L -1 , so that the concentration of red tide algae algaecide in the algae liquid is 0, 0.03g L -1 , 0.06g L -1 , 0.09g L -1 , 0.12g L -1 , 0.15g L -1 . After standing for 6 hours, observe the change of the density of H. akashiwo in the algae liquid.

[0036] The algae removal efficiency of different concentrations of algicide is as follows: figure 2 As shown, the results show that when the concentration of red tide algaecide is 0.15g L -1 and above, for mob densities up to 10 8 cells L -1 The removal rate of Heterocurvium akashiwo can reach more than ...

Embodiment 3

[0038] Mix myricetin with a mass content of 42%, 50% ammonium persulfate, 3% alginic acid, and 5% sodium gluconate in 1L seawater to prepare a red tide algae algaecide solution. Get 6 parts of the red tide water body that grows Prorocentrum donghaiense, each 9L, spray above-mentioned red tide algae algaecide solution wherein respectively, the initial concentration biodensity of algae liquid Prorocentrum donghaiense reaches 10 7 cellsL -1 , so that the concentration of red tide algae algaecide in the algae liquid is 0, 0.03g L -1 , 0.06g L -1 , 0.09g L -1 , 0.12g L -1 , 0.15g L -1 , After standing for 14 hours, observe the change of the density of P.

[0039] The algae removal efficiency of different concentrations of algicide is as follows: image 3 As shown, the results show that when the concentration of red tide algaecide reaches 0.09g L -1 85% of Prorocentrum donghaiense can be removed.

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Abstract

The invention discloses a red tide algae algicide based on myricetin activated persulfate. The algicide is prepared by uniformly mixing the following components in percentage by mass: 15-58% of myricetin, 34-77% of persulfate, 2-5% of dispersing agent and 3-5% of auxiliary material, wherein the dispersing agent is one or more of carrageenan, gelatin, alginic acid, hydroxy propyl cellulose, sodium dodecyl sulfate, polyethylene glycol, polypropylene glycol and alkyl monoglucoside, and the auxiliary material is one or more of sodium chloride, sodium nitrate, sodium sulfate, sodium gluconate, potassium chloride, potassium nitrate and potassium sulfate. The algaecide solves the problem that an existing algaecide has small influence on activity when being used for flocculating red tide algae, reduces the risk of secondary rebound of red tide, and is high in efficiency, small in dosage, free of influence on aquatic environment and good in biocompatibility.

Description

technical field [0001] The invention belongs to the field of red tide control and management, and in particular relates to a red tide algae algaecide based on myricetin-activated persulfate and its application. Background technique [0002] Red tide, also known as red tide, is also called "harmful algae" or "red ghost" internationally. It is a harmful ecological phenomenon in which some phytoplankton, protozoa or bacteria in seawater explosively proliferate or highly aggregate under certain environmental conditions, causing discoloration of the water body, which will cause fish death, water pollution and other problems. Since the beginning of the 21st century, an average of 70-80 red tide disasters have occurred in the country every year, which has become one of the major marine disasters. Therefore, it is of great significance and urgent need to develop efficient, green and sustainable red tide algae algaecides. [0003] Due to the great harm of red tide to the economy an...

Claims

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Application Information

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IPC IPC(8): A01N59/02A01N43/16A01N25/02A01P13/00C02F1/52C02F1/54C02F1/72
CPCA01N59/02A01N43/16A01N25/02C02F1/5236C02F1/54C02F1/722C02F2305/023C02F2103/007C02F2303/20
Inventor 苏荣欣刘庆车明达黄仁亮
Owner TIANJIN UNIV
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