Red tide algae algicide based on procyanidine activated persulfate and application of red tide algae algicide

A technology for activating persulfate and algae algicide, which is applied in the direction of herbicides and algicides, applications, chemicals for biological control, etc., and can solve the problems of large environmental impact, large spraying volume, 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 proanthocyanidin activated persulfate and its application, which can effectively improve the existing heterogeneous red tide algae algicide with large spraying amount, large impact on the environment, slow effect, Easy to rebound and easy to cause secondary pollution

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Experiment 1: Mix 9% proanthocyanidins, 83% sodium persulfate, 4% polyethylene glycol, and 4% potassium nitrate in 1L of seawater to prepare algaecide solution 1;

[0028] Control 2: Proanthocyanidins with a mass content of 9%, 4% polyethylene glycol, and 4% potassium nitrate were mixed uniformly in 1L seawater as algaecide solution 2;

[0029] Control 3: Mix sodium persulfate with a mass content of 83%, 4% polyethylene glycol, and 4% potassium nitrate in 1L of seawater as algaecide solution 3;

[0030] Blank 4: 4% polyethylene glycol and 4% potassium nitrate were mixed uniformly in 1L seawater as algaecide solution 4.

[0031] Get 4 parts of the red tide water bodies with Phaeocystis globosa growing, each 9L, spray the above-mentioned red tide algae algaecide solution therein respectively, the initial concentration biodensity of Phaeocystis globosa in the algae liquid reaches 10 9 cells L -1 , the concentration of each algicide in the algae liquid is 0.4g L -1 . Af...

Embodiment 2

[0034] Mix 22% proanthocyanidins, 73% potassium monopersulfate, 2% gelatin, and 3% potassium 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 described red tide algae algicide solution wherein, the initial concentration biodensity of Heterocurvium akashiwo in the algal liquid reaches 10 8 cells L -1 , so that the concentration of red tide algae algaecide in the algae liquid is 0, 0.05g L -1 , 0.1g L -1 , 0.2g L -1 , 0.3g L -1 , 0.4g 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 0.3g L -1 and above, for mob densities up to 10 8 cells L -1 The removal rate of Heterocurvium akashiwo can reach more than 90%.

Embodiment 3

[0038] Mix 34% proanthocyanidins, 60% ammonium persulfate, 2% alginic acid, and 4% sodium gluconate in 1L seawater to prepare a red tide algae algaecide solution.

[0039] Get 6 parts of the red tide water body that grows Prorocentrum donghaiense, each 9L, spray above-mentioned red tide algae algaecide solution wherein to it respectively, the initial concentration biodensity of algae liquid Prorocentrum donghaiense reaches 10 7 cells L -1 , the concentration of algaecide in the algae liquid is 0, 0.05g L -1 , 0.1g L -1 , 0.15g L -1 , 0.2g L -1 , 0.25g L -1 , After standing for 10h, observe the change of the density of P.

[0040] 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 0.25g L -1 80% of Prorocentrum donghaiense can be removed.

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Abstract

The invention discloses an algaecide based on procyanidine activated persulfate. The algaecide is prepared from the following components in percentage by mass: 9 to 48 percent of procyanidine, 45 to 83 percent of persulfate, 2 to 5 percent of dispersing agent and 3 to 5 percent of auxiliary materials. When in use, the algicide for the red tide algae is mixed with seawater or fresh water to prepare a uniform solution, the solution is sprayed on the surface of a red tide water body, and the red tide can be effectively removed after natural sedimentation. The algaecide is efficient, green and sustainable, the potential environmental influence of an existing heterogeneous algaecide can be effectively improved, and the efficiency of treating the red tide water body is remarkably improved through an inactivation-apoptosis-sedimentation algaecide removal mechanism.

Description

technical field [0001] The invention belongs to the field of red tide control and governance, specifically, a red tide algae algaecide based on proanthocyanidin-activated persulfate and application thereof. 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 and hu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/02A01N43/16A01N25/02A01P13/00C02F1/52C02F1/54C02F1/72
CPCA01N59/02A01N43/16A01N25/02C02F1/5236C02F1/54C02F1/722C02F2305/023C02F2103/007C02F2303/20
Inventor 苏荣欣车明达黄仁亮
Owner TIANJIN UNIV
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