COMPOSITION COMPRISING NANO-SILVER COMPOUNDS FOR ENHANSING CONTROL OF HARMFUL ALGAE AND METHOD FOR CONTROLLING HARMFUL ALGAE USING THE SAME

摘要

PURPOSE: A composition for preventing harmful algae containing nano silver is provided to ensure eco-friendly condition to human, animal, and environment. CONSTITUTION: A composition for preventing harmful algae contains nano silver as an active ingredient without nitrogen and phosphorus. The nano silver is silver metal or silver oxide of nano size. The nano silver is contained in 0.01-15 weight% based on total weight. A method for preparing the composition comprises: a step of dissolving silver salt in distilled water; a step of filtering and washing carbon salt or carbon gas; and a step of adding organic/inorganic reductant or persulfated salt and hydroxide to form silver salt in a nano size.