| 摘要 |
PURPOSE:Saline water is shielded from direct sunlight and kept cool, then raw laver collected from the sea is charged into the water and stirred under such conditions as oxygen is dissolved therein to prevent the raw laver for sheet-making from quality deterioration. CONSTITUTION:Saline water 1 in the water tank 3 is made to contain dissolved oxygen by e.g., spraying the water in the air 4 and kept at about 5-10 deg.C with pipe 5 using sensors and controllers. The water tank 3 is shield from direct sunlight with covers or roofs and raw laver collected from the sea is charged into the cooled saline water 1. Then, the saline water 1 and raw laber are stirred with the blades 7 of the stirrer 6 in the tank 3 to remove diatoms, contaminants, bacteria and other foreign substances sticking to the lavers 2 such as sand. The contaminants separated in washing are removed in the washing process after mincing process and the washed raw laver is sent to the sheet-making process. |
