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Method and use for inhibiting red tide algae by enteromorpha

A technology related to enteromorpha and red tide algae, applied in the field of water treatment, can solve the problems of difficult growth of red tide algae, difficult growth of microorganisms, high transportation costs, etc., and achieve the effect of good algae inhibition, good ecological safety and convenient operation

Inactive Publication Date: 2008-03-05
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the large amount of clay used leads to high transportation costs, which limits the use of this method
Although some bacteria or viruses (cyanophages) that specifically infect red tide algae can also inhibit the growth of red tide algae to a certain extent, the growth of these microorganisms is difficult to regulate, so they are used to inhibit the growth of red tide algae in the ocean. Growth is difficult to control effectively

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0013] Put 1.5 grams of Enteromorpha granules into a nylon bag with good water permeability, put them into 3 liters of red tide algae culture solution, and after 3 days under natural light and 25°C, the density of Skeletalum costatum was 5% of that of the control group. That is, the inhibition rate was 95%.

[0014] Put 3 grams of Enteromorpha edulis powder into the above-mentioned water body with good water permeability, cultivate under the same conditions for 3 days, the density of the algae is reduced by 99%; after 6 days, the density of the algae is reduced by 99.7%.

[0015] After putting 6 grams of Enteromorpha powder into the above-mentioned water body with good water permeability, the same conditions were cultivated for 3 days, and the density of the algae was reduced by 99.9%. After the red tide algae is controlled, the Enteromorpha spp. is taken out from the water body to avoid secondary pollution.

[0016] Usually, the feed is large, the particles are fine, and the...

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PUM

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Abstract

The invention belongs to the water processing field, especially relating to a method and application of inhibiting red tide alga with Enteromorpha linza, and the method: firstly crushing Enteromorpha linza plants into grains or powders, then placing them into nylon bags with good water permeability, and casting the nylon bags into to-be-processed sea water in the proportion of 0.5-2 g per L sea water, after several days, taking out the nylon bags from the water body to avoid secondary pollution. And its inhibition ratio of red tide alga growth is above 95%. And the Enteromorpha linza is crushed of Enteromorpha linza plants. And the invention has advantages of good alga inhibition effect, convenient to operate, easy to control, good ecological safety, etc, and can be widely applied to various water bodies to implement control of red tide.

Description

technical field [0001] The invention belongs to the field of water treatment, and in particular relates to a method and application of Enteromorpha spp. for inhibiting red tide algae. Background technique [0002] Nutrients from land sources and pollutants discharged and leaked from marine operations enter the ocean water body, leading to eutrophication of seawater, which is the main reason for the deterioration of the marine environment. Eutrophication leads to the explosive growth of red tide algae, which will reduce the dissolved oxygen in seawater and bring huge losses to the aquaculture industry. Some algae can also produce algae toxins, which are harmful to aquatic animals and human health. S. costata is a common and main red tide algae in the east coast of China, so S. costata is usually used as a representative of red tide algae. [0003] Existing red tide suppression technologies mainly include copper ion method, modified clay method and microbial method. Existin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/00C02F3/00C02F3/32
Inventor 李锋民王震宇安蓁
Owner OCEAN UNIV OF CHINA