Method for preventing and controlling water bloom pollution organisms in eutrophicated water body

Abstract

The invention relates to a method for preventing and controlling water bloom pollution organisms in eutrophicated water body, which comprises the following step: according to the hydrological condition and water bloom condition of the water body, spraying natural plant algae inhibitor into the water body, wherein the natural plant algae inhibitor comprises the following components in percentage by mass: 60 to 80 percent of water leaching extract of hairyvein agrimonia herb and bud, 10 to 20 percent of vitamin C, 5 to 10 percent of amino acid and 5 to 20 percent of citric acid. The biological algae inhibitor used by the method is natural plant extract, can be biodegradable in a short period, and has the half-life period about 7 days proved by experiments, so the biological algae inhibitor cannot bring about secondary pollution to the environment, and dose not have post-treatment problem; moreover, the biological algae inhibitor has low price which is only dozens of yuan per kilogram, and is suitable for popularization and promotion.

Description

Technical field [0001] The invention relates to the field of environmental treatment of water bloom pollution, which is applied to water bloom prevention and control of freshwater eutrophic water bodies and ecological restoration of water bodies, and specifically relates to a biological control method for water bloom pollution of eutrophic water bodies. Background technique [0002] In recent years, due to the development of industrialization and the continuous intensification of human production activities, a large amount of organic matter has been continuously discharged into lakes and rivers and accumulated in them, resulting in eutrophication of lakes and rivers. The increasing eutrophication of water bodies has led to the proliferation of algae and the formation of increasingly serious water bloom pollution. The frequent occurrence of "water blooms" has greatly reduced the quality of water bodies, disrupted the balance of water ecosystems, and affected aquaculture. It has se...

AI Technical Summary

Problems solved by technology

However, it needs to be combined with short-term governance, and there is a problem with the number of organisms introduced: how many organisms can be introduced in a specific water area so that the water ecosystem will not be destroyed, and the excessive introduction of other organisms will have a serious impact on the water ecosystem itself

[0013] The disadvantage of this technical solution is that its products will also promote photosynthesis of algae while promoting aerobic microorganisms. Although it will not form water blooms, it will cause algae to grow more than the control, resulting in reduced water transparency.

[0015] The defects and deficiencies of this technical solution are: the method is only applicable to shallow water bodies at present, and is not suitable for large water areas such as the Three Gorges of the Yangtze River; The algae-inhibiting effect is specific, and it has a significant inhibitory effect on Anabaena and Nostoc, but the inhibitory effect on Chlorella is not obvious; experiments have shown that the sterilized fermentation broth has no algae-inhibiting effect, indicating that it is the microorganisms in it. play a major role in inhibiting algae

But its shortcomings in practical application are: it affects the beauty of the water body and hinders some of the entertainment functions of the water body; and it no longer has the algae inhibitory effect after the barley straw is put in for a certain period of time (generally 6-12 months); There is no good solution to the post-processing problem

The disadvantage is that it is the same as the barley straw, which affects the appearance, and it is troublesome to dispose of later

It is also a palliative, not a permanent cure, and the method is single, only suitable for short-term algae suppression

Images