| 摘要 |
PURPOSE: An ionized calcium aqueous solution manufacturing method and an ionized calcium aqueous solution for a fish feed additive manufactured thereby are provided to stabilize the contents and the standard of ionized calcium, to maintain an appropriate level of micronutrients, and to maintain the appropriate pH. CONSTITUTION: An ionized calcium aqueous solution manufacturing method comprises: a washing step which dries shells after the removal of foreign substances and contaminants through washing; a high temperature plasticizing step which produces a calcium oxide by removing organic substances and remaining toxicity contained in the dried shells through heating and plasticizing; an agitating step which produces a calcium oxide solution by mixing and agitating the calcium oxide powder and water; an ion reaction step which produces an ionized calcium aqueous solution by inducing the ionizing reaction through generating static electricity in a container and supplying saturated steam into the container with the calcium oxide solution; and a hydrogen ion concentration control step which maintains the hydrogen ion concentration in pH 12-13 by adding softened water and purified water into the ionized calcium aqueous solution. The calcium oxide is produced by heating and plasticizing dried shells at 1,300-2,000 deg. C for 1-3 hours. The particle diameter of the calcium oxide powder is smaller than 10 micrometers in the pulverizing step. The calcium oxide powder and water are mixed in an agitating step are agitated for 3-5 hours. The pressure of the saturated steam is 1.4-5 megapascal in the ion reaction step. [Reference numerals] (S10) Washing step; (S20) High temperature plasticizing step; (S30) Pulverizing step; (S40) Agitating step; (S50) Ion reaction step; (S60) Hydrogen ion concentration control step |
