| 摘要 |
<p>An algal bloom is a phenomenon in which planktonic algae (phytoplankton) are mass propagated in eutrophicated lakes or rivers with slow velocity of flow and accumulated on surface, thereby drastically changing water color into green. The algal bloom is one kind of hydration and only indicates the phenomenon that the water color is changed into green by mass propagation of cyanobacteria. The algal bloom is named through newspapers or broadcasts by the fact that water color is changed into green compared to red tide. Such algal bloom has bad influences on freshwater and causes serious problems including visual influences, influences of toxicity on human body and domestic animals, ecological problems due to ecocide, death of fishes and various underwater creatures due to oxygen deficiency, and the like. The present invention relates to an extermination substance against algae blooms for effectively exterminating causal organisms of algae blooms which bring great damages to freshwater. The present invention manufactures an environment-friendly mixture and applies the same to algae blooms to exterminate the algae blooms. In order to fundamentally solve the algae bloom problems, the present invention manufactures the extermination agent against algae blooms using cobbles, barley stones, and charcoal powder as main ingredients and adding additives. The extermination substance against algae blooms according to the present invention has higher algae bloom rescue efficiency than that of conventional extermination agent against algae blooms; does not cause secondary environmental pollution; and can be mass produced at low cost.</p> |
